/* ==========================================================================
   SEO COURSE PAGE STYLING (assets/css/seo-course.css)
   Eco-Tech SaaS Vibe - Minimal, clean, modern.
   ========================================================================== */

/* 1. Global Components & Utilities for Course Template */
.seo-course-body {
    background-color: var(--color-bg-main);
    color: var(--color-text-main);
}

.seo-course-body .section-padding {
    padding: 3rem 0; /* Standard section padding: ~40px apart per instructions (or about 3-4rem) */
}

/* Green Brand Gradient Button (Specific to SEO Center) */
.btn-yellow-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: var(--gradient-brand);
    color: #ffffff !important;
    font-weight: 700;
    border-radius: var(--border-radius-lg);
    padding: 0.85rem 2rem;
    border: none;
    box-shadow: 0 4px 15px rgba(88, 186, 64, 0.15);
    transition: var(--transition-smooth);
    text-decoration: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-yellow-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(88, 186, 64, 0.25);
    filter: brightness(1.05);
}

/* Secondary outline button */
.btn-outline-course {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--color-primary) !important;
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius-lg);
    padding: 0.85rem 2rem;
    font-weight: 600;
    transition: var(--transition-smooth);
    text-decoration: none;
    font-size: 0.95rem;
}

.btn-outline-course:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
}

/* Breadcrumb Rank Math style */
.rank-math-breadcrumb-wrapper {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
}
.rank-math-breadcrumb-wrapper a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition-smooth);
}
.rank-math-breadcrumb-wrapper a:hover {
    color: var(--color-primary);
}
.rank-math-breadcrumb-wrapper .separator {
    margin: 0 0.5rem;
    color: var(--color-border);
}

/* Badges styling */
.course-badge-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary-pastel);
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-pill);
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.course-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #ffffff;
    border: 1px solid var(--color-border);
    padding: 0.4rem 1rem;
    border-radius: var(--border-radius-pill);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text-main);
    box-shadow: var(--shadow-subtle);
    margin-bottom: 1.5rem;
}

/* Title formatting */
.course-h1 {
    display: block;
    font-size: 3.25rem;
    font-weight: 750;
    line-height: 1.25;
    color: var(--color-text-main);
    margin-bottom: 1.5rem;
}

.course-h1 .highlight {
    font-size: 2.85rem;
    color: var(--color-primary);
    font-weight: 750;
    display: block;
    line-height: 1.15;
    margin-bottom: 0.5rem;
}

.course-h2 {
    font-size: 2.5rem;
    font-weight: 750;
    line-height: 1.2;
    color: var(--color-text-main);
    margin-bottom: 1.5rem;
}

.course-desc {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* Rating wrapper */
.course-rating-container {
    margin-bottom: 2rem;
}
.course-rating-container .kxr-star-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* 2. Section 1: Hero Section */
.seo-course-hero {
    position: relative;
    overflow: hidden;
    background: var(--gradient-bg);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 4rem;
    align-items: center;
}

/* Inline SVG styling globally for course template icons */
.hero-stat-icon svg,
.trans-feature-icon svg,
.perf-bottom-icon svg,
.audience-icon svg,
.price-meta-icon svg,
.benefit-check-icon svg,
.perf-card-icon svg {
    width: 22px;
    height: 22px;
    display: inline-block;
    vertical-align: middle;
    stroke: currentColor;
    fill: none;
}

.benefit-check-icon svg {
    width: 16px;
    height: 16px;
    stroke: var(--color-primary);
}

.inline-google-logo svg {
    width: 16px;
    height: 16px;
    display: inline-block;
    vertical-align: middle;
}

/* Left Content Stats highlights (Image 5 style: flat transparent row layout) */
.hero-highlights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 2rem 0;
}

@media (min-width: 992px) {
    .hero-highlights-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.hero-stat-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.65rem;
    background: transparent; /* Flat / Transparent background */
    border: none; /* No border box */
    border-radius: 0;
    padding: 0.35rem 0;
    box-shadow: none; /* No card shadow */
}

.hero-stat-icon {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: transparent; /* Transparent icon box */
    border: none;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0 !important;
}

.hero-stat-icon svg {
    width: 22px;
    height: 22px;
    stroke: var(--color-primary);
    fill: none;
}

.hero-stat-content {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.hero-stat-value {
    font-size: 1.3rem;
    font-weight: 750;
    color: var(--color-text-main); /* Dark color value like image 5 */
    line-height: 1.1;
}

.hero-stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.2;
}

/* CTA buttons wrapper */
.hero-ctas {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Meta Row: Founder Box (40%) + Ratings (60%) side by side */
.hero-meta-row {
    display: grid;
    grid-template-columns: 4.2fr 5.8fr; /* 42% / 58% split */
    gap: 1.5rem;
    align-items: center;
    margin-top: 2rem;
    margin-bottom: 2.25rem;
}

.hero-meta-row .course-rating-container {
    margin-bottom: 0;
    display: flex;
    align-items: center;
}

/* Founder details box (Image 2 style) */
.hero-founder-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #f9fcf8;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 0.6rem 1rem;
    width: 100%;
    box-shadow: var(--shadow-subtle);
    box-sizing: border-box;
}

.founder-avatar-wrapper {
    flex-shrink: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid #ffffff;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.founder-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.founder-details-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.05rem;
}

.founder-prefix {
    font-size: 0.55rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 600;
    letter-spacing: 0.06em;
}

.founder-name {
    font-size: 0.95rem;
    font-weight: 750;
    color: var(--color-text-main);
    margin: 0;
    line-height: 1.2;
}

.founder-role {
    font-size: 0.7rem;
    color: var(--color-primary);
    font-weight: 600;
}

/* Right Content Graphic Wrapper */
.hero-graphic-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-end; /* Align elements at the bottom */
    height: 600px; /* Taller graphic area */
    width: 100%;
}

/* Green radial background centered exactly in the wrapper */
.hero-radar-bg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(88, 186, 64, 0.22) 0%, rgba(88, 186, 64, 0.04) 50%, rgba(88, 186, 64, 0) 70%);
    pointer-events: none;
    z-index: 1;
}

.hero-radar-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1.5px dashed rgba(88, 186, 64, 0.2);
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
}

.circle-1 { width: 440px; height: 440px; }
.circle-2 { width: 300px; height: 300px; }

/* Instructor photo: taller, lower offset */
.hero-instructor-wrapper {
    position: absolute;
    bottom: -40px; /* Overflows slightly out of the bottom container edge */
    width: 480px; /* Wider footprint */
    height: 600px; /* Taller instructor image dimensions */
    z-index: 2;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    pointer-events: none;
}

.hero-instructor-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    z-index: 2;
    display: block;
}

/* Avatar Group top right */
.hero-avatars-wrapper {
    position: absolute;
    top: 5px;
    right: 5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-pill);
    padding: 0.4rem 0.8rem;
    box-shadow: var(--shadow-subtle);
    z-index: 5;
}

.avatar-stack {
    display: flex;
    align-items: center;
}

.avatar-stack-img {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 2px solid #ffffff;
    margin-right: -8px;
    object-fit: cover;
}

.avatar-stack-img:last-child {
    margin-right: 0;
}

.hero-avatars-text {
    font-size: 0.75rem;
    color: var(--color-text-main);
    font-weight: 500;
    white-space: nowrap;
}

/* Floating overlay cards: scaled down to avoid blocking the instructor */
.floating-card {
    position: absolute;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.03);
    padding: 0.6rem 0.85rem;
    z-index: 4;
    transition: var(--transition-smooth);
    will-change: transform;
    transform: scale(0.82); /* Scaled down slightly to avoid covering instructor */
    transform-origin: center;
}

.floating-card:hover {
    animation-play-state: paused !important; /* Pause movement on hover */
    transform: scale(0.88) translateY(-4px) !important;
}

/* Float Animations Keyframes to keep layouts lively */
@keyframes floatGentle1 {
    0%, 100% { transform: scale(0.82) translateY(0); }
    50% { transform: scale(0.82) translateY(-8px); }
}
@keyframes floatGentle2 {
    0%, 100% { transform: scale(0.82) translateY(0); }
    50% { transform: scale(0.82) translateY(-12px); }
}
@keyframes floatGentle3 {
    0%, 100% { transform: scale(0.82) translateY(0); }
    50% { transform: scale(0.82) translateY(-7px); }
}
@keyframes floatGentle4 {
    0%, 100% { transform: scale(0.82) translateY(0); }
    50% { transform: scale(0.82) translateY(-10px); }
}

/* Card 1: Keyword Ranking (Mid-left) */
.card-keyword-ranking {
    top: 200px;
    left: -65px; /* Pushed further outward */
    width: 155px;
    animation: floatGentle1 6s ease-in-out infinite;
}

/* Card 2: Organic Traffic (Mid-right) */
.card-organic-traffic {
    top: 110px;
    right: -65px; /* Pushed further outward */
    width: 165px;
    animation: floatGentle2 7s ease-in-out infinite;
}

/* Card 3: AI Content Score (Bottom-right) */
.card-ai-score {
    bottom: 120px;
    right: -75px; /* Pushed further outward */
    width: 150px;
    animation: floatGentle3 5.5s ease-in-out infinite;
}

/* Card 4: Robot / Automation Box (Bottom-center) */
.card-robot-opt {
    bottom: 20px;
    left: -15px; /* Pushed further outward */
    width: 215px;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    animation: floatGentle4 6.5s ease-in-out infinite;
}

.card-robot-icon {
    font-size: 1.25rem;
    background: var(--color-bg-light);
    border-radius: var(--border-radius-md);
    padding: 0.35rem;
    border: 1px solid var(--color-border);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-robot-text {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-text-main);
    line-height: 1.3;
}

/* Stat detail styling inside floating cards */
.f-card-title {
    font-size: 0.65rem;
    text-transform: uppercase;
    color: var(--color-text-muted);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.f-card-subtitle {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.f-card-metrics {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
}

.f-card-value {
    font-size: 1.15rem;
    font-weight: 750;
    color: var(--color-text-main);
}

.f-card-percent {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* SVG Line chart mini placeholder */
.mini-chart-svg {
    width: 100%;
    height: 35px;
    display: block;
}

/* Progress bar inside Score card */
.score-progress-bar-wrapper {
    background: #eef3ed;
    height: 6px;
    border-radius: var(--border-radius-pill);
    overflow: hidden;
    margin-top: 0.5rem;
}

.score-progress-fill {
    background: var(--color-primary);
    height: 100%;
    border-radius: var(--border-radius-pill);
}

/* Decorative icons */
.floating-icon {
    position: absolute;
    width: 32px;
    height: 32px;
    background: #ffffff;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-subtle);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
}

.icon-google { top: 80px; left: 80px; }
.icon-chatgpt { bottom: 200px; right: 50px; font-size: 1.15rem; }
.icon-sparkle { bottom: 180px; left: 30px; font-size: 1rem; color: #fcc01a; }

/* 3. Section 2: Transition Section */
.seo-course-transition {
    background-color: var(--color-bg-main);
}

.transition-grid {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 4rem;
    align-items: flex-start;
}

.transition-right-content {
    margin-top: 3.5rem; /* Pushes the right column downward on desktop */
}

/* Features checklist */
.trans-features-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.trans-feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.trans-feature-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: var(--color-primary-light);
    border: 1px solid var(--color-primary-pastel);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
}

.trans-feature-content {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.trans-feature-title {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-text-main);
}

.trans-feature-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Right side performance panel */
.performance-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Metrics Row */
.perf-metrics-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.perf-metric-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-subtle);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.perf-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.perf-card-icon {
    font-size: 1.1rem;
    color: var(--color-primary);
}

.perf-card-title {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 600;
}

.perf-card-metrics {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
}

.perf-card-val {
    font-size: 1.35rem;
    font-weight: 750;
    color: var(--color-text-main);
}

.perf-card-pct {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* Chart block */
.chart-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-subtle);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.chart-title {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--color-text-main);
}

.chart-legends {
    display: flex;
    gap: 1rem;
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.legend-color-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.dot-before { background: #d0d7cf; }
.dot-after { background: var(--color-primary); }

.main-chart-svg {
    width: 100%;
    height: 220px;
    display: block;
}

.chart-grid-line {
    stroke: var(--color-border);
    stroke-width: 1;
    stroke-dasharray: 4 4;
}

.chart-line-before {
    stroke: #d0d7cf;
    stroke-width: 2.5;
    fill: none;
}

.chart-line-after {
    stroke: var(--color-primary);
    stroke-width: 3.5;
    fill: none;
}

.chart-point-before {
    fill: #ffffff;
    stroke: #d0d7cf;
    stroke-width: 2;
}

.chart-point-after {
    fill: #ffffff;
    stroke: var(--color-primary);
    stroke-width: 2.5;
}

.chart-axis-text {
    font-size: 0.65rem;
    fill: var(--color-text-muted);
    font-family: var(--font-family);
    font-weight: 500;
}

/* 4 Bottom metrics cards */
.perf-bottom-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.45rem;
}

.perf-bottom-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 1rem 0.4rem;
    text-align: center;
    box-shadow: var(--shadow-subtle);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
}

.perf-bottom-icon {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
    color: var(--color-primary);
}

.perf-bottom-val {
    font-size: 1.25rem;
    font-weight: 750;
    color: var(--color-text-main);
}

.perf-bottom-label {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

/* 5. Section 4: Course Info Detail Section */
.seo-course-details {
    background-color: var(--color-bg-main);
}

.details-wrapper-card {
    background-color: #f7faf6;
    border: 1px solid #e1e9df;
    border-radius: 16px;
    padding: 3.5rem 3rem;
    box-shadow: var(--shadow-subtle);
}

.details-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.details-subtitle {
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.details-title {
    font-size: 2rem;
    font-weight: 750;
    color: var(--color-text-main);
}

.details-columns-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
}

.details-left-col,
.details-right-col {
    background-color: #ffffff;
    border-radius: 14px;
    padding: 2.5rem 2.25rem;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.015);
    border: 1px solid #e1e9df;
    display: flex;
    flex-direction: column;
}

.details-col-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 2rem;
    text-align: center;
}

/* Left Column: Grid audience items + Pricing block */
.details-audience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.audience-card {
    background: #f9fcf8;
    border: 1px solid #e6ede4;
    border-radius: 8px;
    padding: 0.75rem 0.6rem;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.audience-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-primary);
}

.audience-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    flex-shrink: 0;
}

.audience-icon svg {
    width: 16px;
    height: 16px;
}

.audience-text {
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--color-text-main);
    line-height: 1.3;
}

.details-divider {
    height: 1px;
    background-color: #e6ede4;
    margin: 1.75rem 0;
    width: 100%;
}

/* Pricing Section */
.pricing-row-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 50/50 split */
    align-items: stretch;
    gap: 0.75rem;
    margin-bottom: 1.75rem;
}

.pricing-left-block {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
}

.price-discount-wrap {
    display: flex;
    align-items: baseline;
    line-height: 1;
}

.price-discount {
    font-size: 2.15rem;
    font-weight: 750;
    color: var(--color-text-main);
    line-height: 1;
}

.price-sup {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-main);
    vertical-align: super;
    line-height: 1;
    margin-left: 0.1rem;
}

.price-original {
    font-size: 0.8rem;
    text-decoration: line-through;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

.price-meta-item {
    background-color: #f9fcf8;
    border: 1px solid #e6ede4;
    border-radius: 8px;
    padding: 0.5rem 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.price-meta-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
    color: var(--color-primary);
}

.price-meta-icon svg {
    width: 16px;
    height: 16px;
}

.price-meta-text {
    font-size: 0.75rem;
    line-height: 1.25;
    color: var(--color-text-main);
}

.price-meta-text-bold {
    font-weight: 700;
    display: block;
}

.price-meta-text-thin {
    font-weight: 400;
    display: block;
    color: var(--color-text-muted);
}

.price-cta-btn {
    width: 100%;
    font-size: 1rem;
    font-weight: 700;
    padding: 1.1rem;
    margin-bottom: 1.25rem;
}

.price-guarantee-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
    font-style: italic; /* In nghiêng as requested */
}

.price-guarantee-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.price-guarantee-icon svg {
    width: 12px;
    height: 12px;
}

/* Right Column: Benefits checklist */
.benefits-col {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.benefits-checklist {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2.25rem;
}

.benefit-item {
    display: flex;
    gap: 0.85rem;
    align-items: center;
}

.benefit-check-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    flex-shrink: 0;
}

.benefit-check-icon svg {
    width: 14px;
    height: 14px;
}

.benefit-text {
    font-size: 0.9rem;
    color: var(--color-text-main);
    line-height: 1.45;
    font-weight: 500;
}

.benefits-footer-btn {
    width: 100%;
    margin-top: auto;
    border: 1.5px solid var(--color-primary) !important;
    letter-spacing: 0.04em;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 1.1rem;
}

/* ==========================================================================
   6. RESPONSIVE DESIGN (MOBILE ADAPTATION)
   ========================================================================== */
@media (max-width: 1024px) {
    .course-h1 { font-size: 2.75rem; }
    .hero-grid { gap: 2rem; }
    .transition-grid { gap: 2rem; }
    .details-columns-grid { gap: 2rem; }
    .hero-graphic-container { height: 480px; }
}

@media (max-width: 768px) {
    .seo-course-body .section-padding {
        padding: 2.5rem 0 !important;
    }

    .rank-math-breadcrumb-wrapper {
        text-align: center;
        margin-bottom: 1rem;
    }
    
    .course-h1 {
        font-size: 2rem;
        line-height: 1.35;
        text-align: center;
        display: block;
    }

    .course-h1 .highlight {
        font-size: 2.35rem;
        line-height: 1.2;
        margin-bottom: 0.5rem;
        display: block;
        text-align: center;
    }
    
    .course-h2 {
        font-size: 1.85rem;
        text-align: center;
    }
    
    .course-desc {
        text-align: center;
        font-size: 0.95rem;
    }
    
    .course-badge-outline, .course-badge-pill {
        display: flex;
        width: max-content;
        margin-left: auto !important;
        margin-right: auto !important;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .hero-highlights-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-ctas a {
        width: 100%;
        text-align: center;
    }

    .hero-meta-row {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin: 1.5rem auto 1.5rem;
        text-align: center;
        max-width: 320px;
    }

    .hero-founder-box {
        margin: 0 auto;
        width: 100%;
        max-width: 320px;
        box-sizing: border-box;
    }
    
    .hero-meta-row .course-rating-container {
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 0;
    }
    
    /* Graphic on bottom - Compact layout for mobile */
    .hero-graphic-container {
        position: relative;
        height: 380px; /* Fixed height to enclose graphic elements */
        width: 100%;
        max-width: 320px;
        margin: 0 auto 0;
        display: block;
    }
    
    .hero-radar-bg, .hero-radar-circle {
        display: none; /* Hide decorative background circles on mobile */
    }
    
    .hero-instructor-wrapper {
        position: absolute;
        bottom: 0;
        left: 50%;
        transform: translateX(-50%);
        width: 260px; /* Small footprint */
        height: 340px; /* Taller instructor image dimensions */
        z-index: 2;
        display: flex;
        align-items: flex-end;
        justify-content: center;
    }

    .hero-instructor-img {
        width: 100%;
        height: 100%;
        object-fit: contain;
        display: block;
    }
    
    .hero-avatars-wrapper {
        position: absolute !important;
        top: -10px;
        left: 50%;
        transform: translateX(-50%) scale(0.85);
        margin: 0;
        z-index: 5;
    }
    
    /* Reposition and scale down floating cards to fit the mobile container */
    .floating-card {
        position: absolute !important;
        transform: scale(0.6) !important;
        transform-origin: center;
        z-index: 4;
    }

    .card-keyword-ranking {
        top: 90px;
        left: -35px;
        width: 130px;
    }

    .card-organic-traffic {
        top: 30px;
        right: -35px;
        width: 140px;
    }

    .card-ai-score {
        bottom: 70px;
        right: -45px;
        width: 120px;
    }

    .card-robot-opt {
        bottom: 10px;
        left: -15px;
        width: 170px;
    }
    
    .floating-icon {
        display: none !important; /* Hide floating decorative icons on mobile */
    }
    
    /* Section 2 responsive */
    .transition-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .transition-right-content {
        margin-top: 0 !important;
    }
    
    .trans-feature-item {
        align-items: flex-start;
    }
    
    .perf-metrics-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    .perf-metric-card:nth-child(odd):last-child {
        grid-column: span 2;
    }
    
    .perf-bottom-stats-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }
    .perf-bottom-card:nth-child(odd):last-child {
        grid-column: span 2;
    }
    
    /* Section 3 responsive */
    .details-wrapper-card {
        padding: 1.5rem 1rem;
    }
    
    .details-columns-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .details-left-col,
    .details-right-col {
        padding: 2rem 1.25rem;
    }
    
    .details-audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .audience-card:nth-child(odd):last-child {
        grid-column: span 2;
    }
    
    .pricing-row-container {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .pricing-left-block {
        align-items: center;
        text-align: center;
    }
    
    .price-meta-item {
        width: 100%;
        justify-content: flex-start;
        padding: 0.6rem 1rem;
    }
    
    .price-guarantee-text {
        justify-content: center !important;
        text-align: center;
    }
    
    .details-col-title {
        font-size: 1.05rem;
        margin-bottom: 1.5rem;
    }
    
    .benefits-footer-btn {
        font-size: 0.8rem !important;
        font-weight: 850 !important;
        padding: 0.85rem 1rem !important;
    }
}

@media (max-width: 480px) {
    .details-audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Global Centering for Section Descriptions */
.pricing-section-desc {
    text-align: center !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

/* ==========================================================================
   6. INSTRUCTOR SECTION
   ========================================================================== */
.seo-course-instructor {
    background-color: #ffffff;
}

.instructor-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.instructor-grid {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 3.5rem;
    align-items: start;
}

.instructor-bio {
    font-size: 0.95rem;
    line-height: 1.75;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.instructor-bio p {
    margin-bottom: 1.1rem;
}

.instructor-achievements {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.ach-card {
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border: 1.5px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.008);
}

.ach-card:hover {
    transform: translateY(-3px);
    border-color: rgba(88, 186, 64, 0.25);
    box-shadow: 0 8px 25px rgba(88, 186, 64, 0.02);
}

.ach-card-info {
    flex: 1;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.ach-card-icon-title {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.65rem;
}

.ach-lightning-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: rgba(88, 186, 64, 0.08);
    color: var(--color-primary);
    flex-shrink: 0;
}

.ach-card-title {
    font-size: 1.05rem;
    font-weight: 750;
    color: var(--color-text-main);
    margin: 0;
}

.ach-card-desc {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text-muted);
    margin: 0;
}

.ach-card-media {
    width: 100%;
    height: 150px;
    margin: 0;
    flex-shrink: 0;
    overflow: hidden;
    border-top: 1.5px solid var(--color-border);
    border-left: none;
}

.ach-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.instructor-profile-box {
    background: #ffffff;
    border: 1.5px solid var(--color-border);
    border-radius: 16px;
    padding: 2.25rem 2rem;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.012);
}

.instructor-profile-img-wrap {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    background-color: var(--color-bg-light);
}

.instructor-profile-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    max-height: 380px;
    border-radius: 10px;
}

.profile-about-vertical {
    position: absolute;
    right: 12px;
    bottom: 24px;
    transform: rotate(-90deg);
    transform-origin: right bottom;
    font-size: 2.5rem;
    font-weight: 750;
    color: rgba(88, 186, 64, 0.05);
    text-transform: uppercase;
    white-space: nowrap;
    pointer-events: none;
    letter-spacing: 0.05em;
}

.instructor-profile-details {
    display: flex;
    flex-direction: column;
}

.profile-role-tag {
    display: inline-flex;
    align-self: flex-start;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    padding: 0.35rem 0.75rem;
    border-radius: var(--border-radius-pill);
    margin-bottom: 0.65rem;
    text-transform: uppercase;
}

.profile-name {
    font-size: 1.5rem;
    font-weight: 750;
    color: var(--color-text-main);
    margin-bottom: 0.35rem;
}

.profile-designation {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.profile-bullets {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
}

.profile-bullets li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
}

.bullet-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-primary);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.45rem;
}

.bullet-text {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--color-text-main);
}

@media (min-width: 992px) {
    .instructor-right {
        position: sticky;
        top: 100px;
        align-self: start;
        z-index: 10;
    }
}

/* ==========================================================================
   7. TESTIMONIALS SECTION
   ========================================================================== */
.seo-course-testimonials {
    background-color: #ffffff;
}

.testimonials-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.max-width-800 {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.testimonial-slider-outer {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 3rem;
}

.testimonial-slider-container {
    overflow: hidden;
    width: 100%;
}

.testimonial-slider-track {
    display: flex;
    gap: 1.5rem;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.testimonial-slide-card {
    flex: 0 0 calc((100% - 48px) / 3); /* 3 cards on desktop */
    background: #ffffff;
    border: 1.5px solid var(--color-border);
    border-radius: 14px;
    padding: 2rem 1.75rem;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.006);
    transition: var(--transition-smooth);
    box-sizing: border-box;
}

.testimonial-slide-card:hover {
    border-color: rgba(88, 186, 64, 0.2);
    transform: translateY(-3px);
}

.student-profile {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 1.25rem;
}

.student-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 1.5px solid var(--color-border);
}

.student-meta {
    display: flex;
    flex-direction: column;
}

.student-name {
    font-size: 0.95rem;
    font-weight: 750;
    color: var(--color-text-main);
    margin-bottom: 0.15rem;
}

.student-tag {
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.student-feedback-text {
    font-size: 0.85rem;
    line-height: 1.65;
    color: var(--color-text-muted);
    margin: 0 0 1.25rem 0;
    flex: 1;
    font-style: italic;
}

.student-stars {
    color: #f59e0b; /* Yellow/Gold stars */
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

.slider-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-bg-light);
    border: 1.5px solid var(--color-border);
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 10;
}

.slider-nav-btn:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.slider-nav-left {
    left: 0;
}

.slider-nav-right {
    right: 0;
}

/* Chat feedback screenshots gallery */
.screenshot-gallery-outer {
    position: relative;
    max-width: 100%;
    margin: 4.5rem auto 0 auto;
    padding: 0 3rem;
    padding-top: 0;
}

.screenshot-gallery-container {
    overflow: hidden;
    width: 100%;
}

.screenshot-gallery-track {
    display: flex;
    gap: 1.25rem;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.screenshot-item {
    flex: 0 0 calc((100% - 60px) / 4); /* 4 cards on desktop */
    margin: 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1.5px solid var(--color-border);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.005);
    background-color: #ffffff;
    box-sizing: border-box;
    transition: var(--transition-smooth);
}

.screenshot-item:hover {
    transform: translateY(-2px);
    border-color: rgba(88, 186, 64, 0.15);
}

.screenshot-item img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.gallery-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #ffffff;
    border: 1.5px solid var(--color-border);
    color: var(--color-text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.gallery-nav-btn:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.gallery-nav-left {
    left: 0;
}

.gallery-nav-right {
    right: 0;
}

/* ==========================================================================
   8. WHY CHOOSE US SECTION
   ========================================================================== */
.seo-course-why-us {
    background-color: #ffffff;
}

.why-us-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.why-us-slider-outer {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 3rem;
}

.why-us-slider-container {
    overflow: hidden;
    width: 100%;
}

.why-us-slider-track {
    display: flex;
    gap: 1.5rem;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.why-us-card {
    flex: 0 0 calc((100% - 24px) / 2); /* 2 columns on desktop */
    background: #ffffff;
    border: 1.5px solid rgba(88, 186, 64, 0.15); /* Green outline */
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    box-sizing: border-box;
}

.why-us-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(88, 186, 64, 0.05);
    border-color: var(--color-primary);
}

.why-us-card-media {
    margin: 0;
    height: 280px;
    overflow: hidden;
    border-bottom: 1.5px solid var(--color-border);
}

.why-us-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.why-us-card-content {
    padding: 2.25rem 2rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.why-us-card-title {
    font-size: 1.15rem;
    font-weight: 750;
    color: var(--color-text-main);
    margin-bottom: 0.85rem;
}

.why-us-card-desc {
    font-size: 0.88rem;
    line-height: 1.65;
    color: var(--color-text-muted);
    margin: 0 0 1.75rem 0;
    flex: 1;
}

/* Yellow Action Button with bounce hover */
.why-us-card-btn {
    background-color: #FFE252 !important; /* Yellow as requested */
    color: var(--color-text-main) !important;
    font-weight: 750;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    padding: 0.85rem 1.75rem;
    border-radius: 9999px;
    border: none;
    align-self: flex-start;
    text-decoration: none;
    margin-top: auto;
    box-shadow: 0 4px 15px rgba(255, 226, 82, 0.25);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.why-us-card-btn:hover {
    transform: scale(1.03); /* Subtle bounce-in */
    box-shadow: 0 6px 20px rgba(255, 226, 82, 0.4);
}

.why-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #ffffff;
    border: 1.5px solid var(--color-border);
    color: var(--color-text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.why-nav-btn:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.why-nav-left {
    left: 0;
}

.why-nav-right {
    right: 0;
}

/* Slide Indicator Dots */
.why-us-slider-dots {
    display: flex;
    justify-content: center;
    gap: 0.45rem;
    margin-top: 2rem;
}

.why-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-border);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.why-dot--active {
    background-color: var(--color-primary);
    width: 20px;
    border-radius: var(--border-radius-pill);
}

/* Testimonials Slide Indicator Dots */
.testimonial-slider-dots {
    display: flex;
    justify-content: center;
    gap: 0.45rem;
    margin-top: 2rem;
}

.testimonial-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-border);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.testimonial-dot--active {
    background-color: var(--color-primary);
    width: 20px;
    border-radius: var(--border-radius-pill);
}

/* ==========================================================================
   9. REGISTRATION & PAYMENT SECTION (Green Banner MB Grid style)
   ========================================================================== */
.seo-course-payment {
    background-color: #ffffff;
}

.payment-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.payment-card {
    border-radius: 16px;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 12px 35px rgba(88, 186, 64, 0.05);
    /* Vibrant brand green gradient background with white grid tech pattern */
    background: var(--gradient-brand);
    background-image: 
        radial-gradient(circle at 100% 0%, rgba(255, 255, 255, 0.15) 0%, transparent 250px),
        linear-gradient(0deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        var(--gradient-brand);
    background-size: 100% 100%, 24px 24px, 24px 24px, 100% 100%;
}

.payment-card-body {
    padding: 3.5rem 3rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    box-sizing: border-box;
}

.payment-card-title {
    font-size: 1.35rem;
    font-weight: 750;
    color: #ffffff;
    margin-bottom: 2rem;
    border-left: 3.5px solid #ffffff;
    padding-left: 0.85rem;
    line-height: 1.2;
}

.payment-details-list {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.95rem;
}

.payment-details-list li {
    display: flex;
    align-items: baseline;
    font-size: 0.9rem;
    line-height: 1.5;
    border-bottom: 1px dashed rgba(255, 255, 255, 0.15);
    padding-bottom: 0.65rem;
}

.detail-label {
    width: 120px;
    flex-shrink: 0;
    color: rgba(255, 255, 255, 0.85);
}

.detail-value {
    font-weight: 600;
    color: #ffffff;
}

.highlight-green-text {
    color: #FFE252; /* Yellow highlight for card number as requested */
}

.text-muted-style {
    color: rgba(255, 255, 255, 0.7);
    font-style: italic;
}

.memo-example {
    border-bottom: none !important;
    padding-bottom: 0 !important;
}

.payment-zalo-checkmarks {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
}

.payment-zalo-checkmarks li {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    font-size: 0.88rem;
    line-height: 1.5;
}

.square-checkmark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 4px;
    background-color: #ffffff;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 2px;
}

.checkmark-text {
    color: #ffffff;
    font-weight: 500;
}

/* White compact QR frame */
.payment-qr-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #ffffff;
    padding: 0.85rem;
    border-radius: 12px;
    width: 180px;
    height: 180px;
    margin: auto auto 0 auto;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    box-sizing: border-box;
}

.payment-qr-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/* ==========================================================================
   10. FREE SERIES PLAYLIST SECTION
   ========================================================================== */
.seo-course-free-series {
    background-color: #ffffff;
}

.series-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.series-grid {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
    align-items: stretch; /* equal height flex container */
}

.series-video-wrap {
    width: 100%;
}

.iframe-ratio-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 ratio */
    height: 0;
    overflow: hidden;
    border-radius: 14px;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.02);
    border: 1px solid var(--color-border);
}

.iframe-ratio-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.series-playlist-wrap {
    background: #ffffff;
    border: 1.5px solid var(--color-border);
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.005);
    box-sizing: border-box;
}

@media (min-width: 992px) {
    .series-playlist-wrap {
        height: 100%;
        position: relative;
        padding: 0 !important;
    }
    .playlist-scroller {
        position: absolute;
        top: 1.5rem;
        bottom: 1.5rem;
        left: 1.5rem;
        right: 1.5rem;
        overflow-y: auto;
    }
}

@media (max-width: 991px) {
    .series-playlist-wrap {
        height: auto !important;
        padding: 1.25rem !important;
    }
    .playlist-scroller {
        height: auto !important;
        max-height: 360px;
        overflow-y: auto;
        padding-right: 0.25rem;
    }
}

.playlist-scroller::-webkit-scrollbar {
    width: 4px;
}

.playlist-scroller::-webkit-scrollbar-track {
    background: transparent;
}

.playlist-scroller::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 2px;
}

.playlist-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.25rem;
    background: var(--color-bg-light);
    border: 1.5px solid var(--color-border);
    border-radius: var(--border-radius-pill);
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-bottom: 0.75rem;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-text-main);
    box-sizing: border-box;
}

.playlist-row:last-child {
    margin-bottom: 0;
}

.playlist-row-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: var(--transition-smooth);
}

.playlist-row-text {
    flex: 1;
}

/* Hover effects */
.playlist-row:hover {
    transform: translateY(-1px);
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* Active State - Solid Green Badge as requested */
.playlist-row--active {
    background-color: var(--color-primary) !important;
    border-color: var(--color-primary) !important;
    color: #ffffff !important;
}

.playlist-row--active .playlist-row-icon {
    color: #ffffff !important;
}

/* ==========================================================================
   11. FAQ ACCORDION SECTION
   ========================================================================== */
.seo-course-faq-accordion {
    background-color: #ffffff;
}

.faq-section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.faq-grid {
    display: grid;
    grid-template-columns: 7.2fr 4.8fr;
    gap: 3.5rem;
    align-items: center;
}

/* Scrollable container on left */
.faq-left-scroll {
    max-height: 480px;
    overflow-y: auto;
    padding-right: 2.25rem;
    box-sizing: border-box;
}

/* Premium green tech vertical scrollbar styling */
.faq-left-scroll::-webkit-scrollbar {
    width: 6px;
}

.faq-left-scroll::-webkit-scrollbar-track {
    background: #f4fbf3;
    border-radius: 3px;
}

.faq-left-scroll::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 3px;
}

.faq-accordion-item {
    background: #ffffff;
    border: 1.5px solid var(--color-border);
    border-radius: 12px;
    margin-bottom: 1.1rem;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-accordion-item[open] {
    border-color: var(--color-primary);
    box-shadow: 0 8px 25px rgba(88, 186, 64, 0.03);
}

.faq-accordion-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 1.75rem;
    cursor: pointer;
    font-weight: 750;
    font-size: 0.95rem;
    color: var(--color-text-main);
    user-select: none;
    list-style: none;
}

.faq-accordion-summary::-webkit-details-marker {
    display: none;
}

.faq-q-text {
    flex: 1;
    line-height: 1.45;
}

.faq-toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: var(--transition-smooth);
}

.faq-accordion-content {
    padding: 0 1.75rem 1.5rem 1.75rem;
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--color-text-muted);
}

.faq-accordion-content p {
    margin: 0;
}

.faq-right-expert {
    display: flex;
    justify-content: center;
    align-items: flex-end;
}

.faq-expert-figure {
    margin: 0;
    position: relative;
    max-width: 360px;
    width: 100%;
}

.faq-expert-img {
    width: 100%;
    height: auto;
    display: block;
    /* preserves top corners and doesn't crop forehead/angle */
    object-fit: contain; 
}

/* ==========================================================================
   RESPONSIVE OVERRIDES FOR SECTIONS 6 - 11
   ========================================================================== */
@media (max-width: 991px) {
    .instructor-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .instructor-right {
        max-width: 480px;
        margin: 0 auto;
        width: 100%;
    }
    
    .testimonial-slide-card {
        flex: 0 0 calc((100% - 24px) / 2); /* 2 cards on tablet */
    }
    
    .screenshot-item {
        flex: 0 0 calc((100% - 24px) / 2); /* 2 chat screenshots on tablet */
    }
    
    .why-us-card {
        flex: 0 0 100%; /* 1 card slider on tablet */
    }
    
    .why-us-card-media {
        height: 240px;
    }
    
    .payment-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .series-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    .faq-left-scroll {
        padding-right: 0;
        max-height: none; /* remove scrolling in mobile vertically if stacked */
        overflow-y: visible;
    }
    
    .faq-right-expert {
        max-width: 320px;
        margin: 2rem auto 0 auto;
    }
}

@media (max-width: 768px) {
    .instructor-achievements {
        grid-template-columns: 1fr;
    }
    
    .ach-card {
        flex-direction: column;
    }
    
    .ach-card-media {
        width: 100%;
        height: 200px;
        border-left: none;
        border-top: 1.5px solid var(--color-border);
    }
    
    .testimonial-slider-outer,
    .screenshot-gallery-outer,
    .why-us-slider-outer {
        padding: 0;
    }
    
    .slider-nav-btn,
    .gallery-nav-btn,
    .why-nav-btn {
        display: none; /* hide arrow buttons on mobile/tablet viewports, use touch/swipe or scroll */
    }
}

}

/* ==========================================================================
   MOTION DESIGN SYSTEM (AI-NATIVE TRANSITIONS 2026)
   ========================================================================== */

/* Keyframes */
@keyframes floatSlow {
    0% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
    100% { transform: translateY(0); }
}

@keyframes pulsePoint {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes pulsePlay {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(88, 186, 64, 0.4); }
    70% { transform: scale(1.15); box-shadow: 0 0 0 12px rgba(88, 186, 64, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(88, 186, 64, 0); }
}

@keyframes gradientSweep {
    0% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* AI Blur Reveal */
/* AI Blur Reveal */
.blur-reveal {
    filter: blur(18px);
    opacity: 0;
    transition: filter 0.9s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.visible .blur-reveal,
.blur-reveal.visible {
    filter: blur(0);
    opacity: 1;
}

/* Gradient Sweep text */
.gradient-sweep-text {
    background: linear-gradient(90deg, #58BA40, #FFE252, #58BA40, #58BA40);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.visible .gradient-sweep-text {
    animation: gradientSweep 1.5s cubic-bezier(0.16, 1, 0.3, 1) 1 forwards;
}

/* Float utilities */
.floating-dashboard {
    animation: floatSlow 6s ease-in-out infinite;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.floating-dashboard:hover {
    transform: translateY(-8px) scale(1.03) !important;
}

.floating-badge {
    animation: floatSlow 5s ease-in-out infinite;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    padding: 0.45rem 0.95rem;
    border-radius: var(--border-radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-main);
    position: absolute;
    z-index: 10;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: transform 0.1s ease;
}

.floating-badge svg {
    color: var(--color-primary);
}

/* Section 02: Progressive features reveal */
.trans-features-list .trans-feature-item {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.visible .trans-features-list .trans-feature-item:nth-child(1) { transition-delay: 120ms; opacity: 1; transform: translateY(0); }
.visible .trans-features-list .trans-feature-item:nth-child(2) { transition-delay: 240ms; opacity: 1; transform: translateY(0); }
.visible .trans-features-list .trans-feature-item:nth-child(3) { transition-delay: 360ms; opacity: 1; transform: translateY(0); }
.visible .trans-features-list .trans-feature-item:nth-child(4) { transition-delay: 480ms; opacity: 1; transform: translateY(0); }

/* SVG growth chart draw */
.chart-line-before,
.chart-line-after {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    transition: stroke-dashoffset 2s cubic-bezier(0.16, 1, 0.3, 1);
}

.visible .chart-line-before,
.visible .chart-line-after {
    stroke-dashoffset: 0;
}

.chart-point-before,
.chart-point-after {
    opacity: 0;
    transform: scale(0);
    transform-origin: center;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.visible .chart-point-before,
.visible .chart-point-after {
    opacity: 1;
    transform: scale(1);
}

.visible .chart-point-after:last-of-type {
    animation: pulsePoint 2s ease-in-out infinite;
    transform-origin: center;
    animation-delay: 2s;
}

/* Section 03: Split Reveal */
.split-reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.visible .split-reveal-left,
.split-reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.split-reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.visible .split-reveal-right,
.split-reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.glow-premium {
    box-shadow: 0 4px 20px rgba(88, 186, 64, 0.02);
    transition: box-shadow 0.4s ease, transform 0.4s ease;
}

.glow-premium:hover {
    box-shadow: 0 10px 45px rgba(88, 186, 64, 0.15) !important;
    transform: translateY(-4px);
}

/* Section 04: Roadmap card hover styling */
.roadmap-module-card {
    opacity: 1;
    transform: translateY(0);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
}

.roadmap-module-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(88, 186, 64, 0.05);
}

/* Section 05: Spotlight comparison cards */
.pricing-table-card {
    transition: transform 0.4s ease, opacity 0.4s ease, box-shadow 0.4s ease;
}

.pricing-table-card:hover {
    transform: scale(1.02);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.05);
}

/* Section 06: Instructor Portrait and Achievements Stagger */
.instructor-profile-img {
    transform: scale(1.08);
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.visible .instructor-profile-img {
    transform: scale(1);
}

.instructor-profile-box {
    transition: transform 0.4s ease;
}

.instructor-profile-box:hover {
    transform: translateY(-6px);
}

.ach-card {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.visible .ach-card:nth-child(1) { transition-delay: 100ms; opacity: 1; transform: translateY(0); }
.visible .ach-card:nth-child(2) { transition-delay: 200ms; opacity: 1; transform: translateY(0); }
.visible .ach-card:nth-child(3) { transition-delay: 300ms; opacity: 1; transform: translateY(0); }
.visible .ach-card:nth-child(4) { transition-delay: 400ms; opacity: 1; transform: translateY(0); }

/* Section 07: Rating and auto play testimonial transitions */
.testimonial-slide-card {
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.testimonial-stars span {
    opacity: 0;
    display: inline-block;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.visible .testimonial-stars span:nth-child(1) { transition-delay: 100ms; opacity: 1; }
.visible .testimonial-stars span:nth-child(2) { transition-delay: 170ms; opacity: 1; }
.visible .testimonial-stars span:nth-child(3) { transition-delay: 240ms; opacity: 1; }
.visible .testimonial-stars span:nth-child(4) { transition-delay: 310ms; opacity: 1; }
.visible .testimonial-stars span:nth-child(5) { transition-delay: 380ms; opacity: 1; }

.screenshot-item img {
    transition: transform 0.4s ease;
}

.screenshot-item:hover img {
    transform: scale(1.05);
}

/* Section 03 Benefits list progressive reveal */
.visible .benefits-col .benefit-item {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Section 08: Why Us Stagger reveal & magnetic buttons */
.why-us-card {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.why-us-card:nth-child(odd) {
    transform: translateX(-40px);
}

.why-us-card:nth-child(even) {
    transform: translateX(40px);
}

.visible .why-us-card {
    opacity: 1;
    transform: translateX(0);
}

.why-us-card-btn:hover {
    transform: scale(1.03) translateY(-2px);
}

/* Section 09: Payment glow spotlight hover & pulse recommendation */
.payment-card {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.payment-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 45px rgba(88, 186, 64, 0.15) !important;
}

/* Recommended badge pulse animation */
.payment-card--recommended {
    animation: floatSlow 6s ease-in-out infinite;
}

/* Section 10: Play Button Pulse & Video Hover */
.iframe-ratio-container {
    transition: transform 0.4s ease;
}

.iframe-ratio-container:hover {
    transform: scale(1.03);
}

.playlist-row {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.playlist-row:hover {
    transform: translateX(6px);
}

/* Section 11: FAQ animations */
.faq-accordion-item {
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.faq-accordion-item:hover {
    transform: translateX(6px);
}

.faq-accordion-item[open] {
    background: #F5FFF3 !important;
}

.faq-icon-svg {
    transition: transform 0.3s ease;
}

.faq-accordion-item[open] .faq-icon-svg {
    transform: rotate(45deg); /* Plus to close rotated cross */
}