/* ==========================================================================
   Master English Pronunciation eBook Landing Page - CSS Architecture
   Theme: Pure Light Premium (Royal Blue, White, Light Blue & Gold Accents)
   Mobile-First | Fast-Loading | Facebook Ads Conversion-Optimized
   ========================================================================== */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Hind:wght@400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&display=swap');

/* --- Root Color Tokens & Design System --- */
:root {
    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-hindi: 'Hind', sans-serif;

    /* Light Theme Palette */
    --bg-body: #f8fafc;
    --bg-surface: #ffffff;
    --bg-soft-blue: #f0f7ff;
    --bg-soft-gold: #fffbeb;
    --bg-gray-section: #f1f5f9;

    --blue-deep: #1e3a8a;
    --blue-primary: #2563eb;
    --blue-light: #3b82f6;
    --blue-gradient: linear-gradient(135deg, #1e3a8a 0%, #2563eb 60%, #3b82f6 100%);
    --blue-glow: rgba(37, 99, 235, 0.2);

    --gold-primary: #f59e0b;
    --gold-dark: #d97706;
    --gold-light: #fbbf24;
    --gold-gradient: linear-gradient(135deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
    --gold-glow: rgba(245, 158, 11, 0.25);

    --green-emerald: #10b981;
    --green-light: #ecfdf5;
    --red-alert: #ef4444;

    --text-main: #0f172a;
    --text-muted: #475569;
    --text-light: #64748b;

    --border-light: #e2e8f0;
    --border-blue: rgba(37, 99, 235, 0.2);
    --border-gold: rgba(245, 158, 11, 0.35);

    --shadow-card: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
    --shadow-hover: 0 20px 35px -10px rgba(37, 99, 235, 0.12), 0 8px 10px -4px rgba(37, 99, 235, 0.06);
    --shadow-gold: 0 10px 30px -5px rgba(245, 158, 11, 0.25);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- Resets & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.hindi-text {
    font-family: var(--font-hindi);
    font-weight: 500;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    outline: none;
}

/* --- Layout Container --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 48px 0;
    }
}

/* --- Typography Helpers --- */
.text-center { text-align: center; }
.text-gold { color: var(--gold-dark); }
.text-blue { color: var(--blue-primary); }
.text-green { color: var(--green-emerald); }

.text-gradient-blue {
    background: var(--blue-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header {
    margin-bottom: 45px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    background: var(--bg-soft-blue);
    border: 1px solid var(--border-blue);
    border-radius: var(--radius-full);
    color: var(--blue-primary);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 14px;
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.25;
    color: var(--blue-deep);
    margin-bottom: 14px;
}

@media (max-width: 768px) {
    .section-title {
        font-size: 1.8rem;
    }
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 680px;
    margin: 0 auto;
}

/* --- Top Announcement Bar --- */
.top-bar {
    background: var(--blue-gradient);
    color: #ffffff;
    padding: 10px 0;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(30, 58, 138, 0.15);
}

.top-bar-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--gold-light);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--gold-light);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(251, 191, 36, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(251, 191, 36, 0); }
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    padding: 55px 0 75px 0;
    background: radial-gradient(circle at 10% 20%, rgba(239, 246, 255, 0.9) 0%, transparent 50%),
                radial-gradient(circle at 90% 80%, rgba(254, 243, 199, 0.7) 0%, transparent 50%),
                var(--bg-body);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 45px;
    align-items: center;
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 35px;
        text-align: center;
    }
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.offer-badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--bg-soft-gold);
    border: 1px solid var(--gold-primary);
    border-radius: var(--radius-full);
    color: var(--gold-dark);
    font-weight: 700;
    font-size: 0.88rem;
    width: fit-content;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.12);
}

@media (max-width: 992px) {
    .offer-badge-pill {
        margin: 0 auto;
    }
}

.hero-title {
    font-size: 3.1rem;
    font-weight: 900;
    line-height: 1.15;
    color: var(--blue-deep);
    letter-spacing: -0.5px;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.1rem;
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--blue-primary);
}

/* Hindi Question Box */
.hero-hindi-box {
    background: #ffffff;
    border: 1px solid var(--border-blue);
    border-left: 5px solid var(--blue-primary);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.hindi-question-line {
    font-size: 1.02rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 8px;
}

.hindi-question-line i {
    color: var(--blue-primary);
    font-size: 0.85rem;
}

.hindi-solution-line {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--blue-deep);
    margin-top: 4px;
    padding-top: 8px;
    border-top: 1px dashed var(--border-light);
}

/* Pricing Display */
.price-box-wrapper {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin: 8px 0 4px 0;
}

@media (max-width: 992px) {
    .price-box-wrapper {
        justify-content: center;
    }
}

.hero-price {
    font-size: 3.2rem;
    font-weight: 900;
    color: var(--blue-deep);
    line-height: 1;
}

.hero-old-price {
    font-size: 1.45rem;
    color: var(--text-light);
    text-decoration: line-through;
}

.save-tag {
    background: #dc2626;
    color: #ffffff;
    font-weight: 800;
    font-size: 0.82rem;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

/* Floating Book Animation */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.book-showcase-box {
    position: relative;
    max-width: 400px;
    width: 100%;
}

.floating-book {
    animation: floatBook 3.5s ease-in-out infinite;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 45px -10px rgba(30, 58, 138, 0.22);
}

@keyframes floatBook {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

.bonus-badge-floating {
    position: absolute;
    top: -14px;
    right: -14px;
    background: var(--gold-gradient);
    color: #ffffff;
    font-weight: 800;
    font-size: 0.82rem;
    padding: 8px 16px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-gold);
    border: 2px solid #ffffff;
    z-index: 10;
}

/* --- High-Converting CTA Buttons --- */
.btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 34px;
    background: var(--gold-gradient);
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 900;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(245, 158, 11, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.4);
    transition: transform var(--transition-bounce), box-shadow var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    width: fit-content;
    text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}

@media (max-width: 992px) {
    .btn-cta {
        margin: 0 auto;
        width: 100%;
        max-width: 380px;
    }
}

.btn-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 35px rgba(245, 158, 11, 0.5);
}

.btn-cta:active {
    transform: translateY(1px);
}

/* --- Problem & Solution Sections --- */
.problem-solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

@media (max-width: 768px) {
    .problem-solution-grid {
        grid-template-columns: 1fr;
    }
}

.card-ps {
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    padding: 32px 26px;
    box-shadow: var(--shadow-card);
}

.card-problem {
    border: 1px solid #fecaca;
    background: #fff5f5;
}

.card-solution {
    border: 2px solid var(--blue-primary);
    background: var(--bg-soft-blue);
}

.ps-title {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-problem .ps-title { color: #dc2626; }
.card-solution .ps-title { color: var(--blue-deep); }

.ps-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ps-list li {
    font-size: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-main);
}

/* --- Features / What You Will Learn --- */
.learn-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}

.card-learn {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-learn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--blue-light);
}

.card-learn-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-md);
    background: var(--bg-soft-blue);
    color: var(--blue-primary);
    display: grid;
    place-items: center;
    font-size: 1.3rem;
}

.card-learn-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--blue-deep);
}

.card-learn-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
}

/* --- Free Bonus Section --- */
.bonus-card-box {
    background: linear-gradient(135deg, #ffffff 0%, var(--bg-soft-gold) 100%);
    border: 2px solid var(--gold-primary);
    border-radius: var(--radius-xl);
    padding: 40px 30px;
    box-shadow: var(--shadow-gold);
    position: relative;
    overflow: hidden;
}

.bonus-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 35px;
    align-items: center;
}

@media (max-width: 992px) {
    .bonus-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.bonus-img-container {
    position: relative;
    display: flex;
    justify-content: center;
}

.bonus-cover-img {
    max-width: 270px;
    border-radius: var(--radius-md);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.gift-icon-overlay {
    position: absolute;
    top: -18px;
    left: -18px;
    font-size: 3.2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.bonus-content-box {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.bonus-tag {
    background: var(--gold-gradient);
    color: #ffffff;
    font-weight: 800;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    width: fit-content;
}

@media (max-width: 992px) {
    .bonus-tag {
        margin: 0 auto;
    }
}

.bonus-title {
    font-size: 2.1rem;
    font-weight: 900;
    color: var(--blue-deep);
}

.bonus-value-strip {
    font-size: 1.15rem;
    font-weight: 700;
}

.strikethrough {
    text-decoration: line-through;
    color: var(--text-light);
}

.free-tag {
    color: var(--green-emerald);
    font-size: 1.45rem;
    font-weight: 900;
    margin-left: 8px;
}

/* --- Who Should Buy --- */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 18px;
}

.card-audience {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 20px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-card);
    transition: var(--transition-fast);
}

.card-audience:hover {
    border-color: var(--blue-primary);
    transform: translateY(-3px);
}

.audience-icon {
    font-size: 1.4rem;
    color: var(--blue-primary);
    background: var(--bg-soft-blue);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.audience-title {
    font-size: 1.02rem;
    font-weight: 700;
    color: var(--blue-deep);
}

/* --- Before vs After --- */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
}

.comparison-box {
    border-radius: var(--radius-xl);
    padding: 32px 24px;
    box-shadow: var(--shadow-card);
}

.comparison-before {
    background: #fef2f2;
    border: 1px solid #fecaca;
}

.comparison-after {
    background: #ecfdf5;
    border: 2px solid var(--green-emerald);
}

.comparison-header {
    font-size: 1.45rem;
    font-weight: 800;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(0,0,0,0.08);
}

.comparison-before .comparison-header { color: #dc2626; }
.comparison-after .comparison-header { color: var(--green-emerald); }

.comparison-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.comparison-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.02rem;
    font-weight: 600;
}

/* --- Reviews Grid (50 Testimonial Cards UI Layout) --- */
.reviews-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 18px;
    max-height: 750px;
    overflow-y: auto;
    padding: 14px;
    border-radius: var(--radius-lg);
    background: var(--bg-soft-blue);
    border: 1px solid var(--border-blue);
}

/* Custom Scrollbar for Reviews */
.reviews-container::-webkit-scrollbar {
    width: 7px;
}
.reviews-container::-webkit-scrollbar-track {
    background: #e2e8f0;
    border-radius: 10px;
}
.reviews-container::-webkit-scrollbar-thumb {
    background: var(--blue-primary);
    border-radius: 10px;
}

.card-review {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 18px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.review-stars {
    color: var(--gold-primary);
    font-size: 0.95rem;
}

.review-text {
    font-size: 0.93rem;
    color: var(--text-main);
    line-height: 1.45;
}

.reviewer-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: auto;
    padding-top: 8px;
    border-top: 1px solid var(--border-light);
}

.avatar-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--blue-gradient);
    color: #ffffff;
    font-weight: 800;
    display: grid;
    place-items: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.reviewer-name {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--blue-deep);
}

.reviewer-role {
    font-size: 0.76rem;
    color: var(--text-light);
}

/* --- FAQ Accordion --- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    transition: var(--transition-fast);
}

.faq-item.active {
    border-color: var(--blue-primary);
}

.faq-question {
    width: 100%;
    padding: 18px 22px;
    background: none;
    color: var(--blue-deep);
    font-size: 1.08rem;
    font-weight: 700;
    text-align: left;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-icon {
    font-size: 0.95rem;
    color: var(--blue-primary);
    transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 22px;
    color: var(--text-muted);
    font-size: 0.96rem;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 22px 18px 22px;
}

/* --- Final CTA Section --- */
.final-cta-section {
    background: linear-gradient(180deg, var(--bg-soft-blue) 0%, #ffffff 100%);
    border-top: 1px solid var(--border-blue);
    padding: 75px 0;
}

.final-cta-card {
    background: #ffffff;
    border: 2px solid var(--blue-primary);
    border-radius: var(--radius-xl);
    padding: 45px 28px;
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
    box-shadow: var(--shadow-hover);
}

/* --- Footer --- */
.footer {
    background: var(--blue-deep);
    color: #ffffff;
    padding: 38px 0 22px 0;
    font-size: 0.88rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    text-align: center;
}

.footer-links {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--gold-light);
}

/* --- Sticky Mobile Bottom Bar --- */
.sticky-mobile-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #ffffff;
    border-top: 2px solid var(--gold-primary);
    padding: 10px 16px;
    z-index: 999;
    display: none;
    box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.08);
}

@media (max-width: 768px) {
    .sticky-mobile-bar {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}

.mobile-price {
    font-size: 1.25rem;
    font-weight: 900;
    color: var(--blue-deep);
}

.btn-mobile-buy {
    background: var(--gold-gradient);
    color: #ffffff;
    font-weight: 900;
    font-size: 0.92rem;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    text-transform: uppercase;
}

/* --- Bottom Notification Toast System --- */
.bottom-toast-notification {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 1000;
    background: #ffffff;
    border: 1px solid var(--border-blue);
    border-left: 4px solid var(--blue-primary);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    max-width: 340px;
    width: calc(100% - 32px);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    pointer-events: none;
}

@media (max-width: 768px) {
    .bottom-toast-notification {
        left: 50%;
        bottom: 70px;
        transform: translate(-50%, 30px);
    }

    .bottom-toast-notification.active {
        transform: translate(-50%, 0) !important;
    }
}

.bottom-toast-notification.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.toast-avatar-box {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--blue-gradient);
    color: #ffffff;
    font-weight: 800;
    font-size: 0.85rem;
    display: grid;
    place-items: center;
    flex-shrink: 0;
}

.toast-text-box {
    display: flex;
    flex-direction: column;
}

.toast-title-line {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--blue-deep);
    display: flex;
    align-items: center;
    gap: 6px;
}

.toast-desc-line {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.3;
}

/* --- Scroll Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}