/* ===== Variables & Reset ===== */
:root {
    /* Colors - Dark Theme */
    --color-primary: #FF7F00;
    --color-primary-hover: #E66A00;
    --color-bg-main: #0D1117;
    --color-bg-offset: #161B22;
    --color-bg-card: #161B22;
    --color-text-main: #F0F6FC;
    --color-text-muted: #8B949E;
    --color-border: #30363D;
    --color-shadow: rgba(0, 0, 0, 0.5);
    --color-success: #34D399;
    --color-warning: #F87171;

    /* Typography */
    --font-main: 'Inter', sans-serif;

    /* Spacing */
    --container-max: 1200px;
    --section-padding: 80px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

ul {
    list-style: none;
}

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

/* ===== Animated Background Grid ===== */
.animated-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
    background-image:
        linear-gradient(rgba(255, 127, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 127, 0, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(50px, 50px);
    }
}

/* ===== Floating Orbs Background ===== */
.floating-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 15s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 127, 0, 0.4), transparent 70%);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 127, 0, 0.3), transparent 70%);
    top: 60%;
    right: 10%;
    animation-delay: -5s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(255, 180, 80, 0.25), transparent 70%);
    bottom: 20%;
    left: 30%;
    animation-delay: -10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(30px, -30px) scale(1.1);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(-30px, -20px) scale(1.05);
    }
}

/* Utilities */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

.section-padding {
    padding: var(--section-padding) 0;
}

.section-dark {
    background: linear-gradient(180deg, #010409, #0a0e14);
}

.section-header {
    margin-bottom: 60px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.section-header.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-header.center {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    color: var(--color-text-main);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ===== Enhanced Buttons ===== */
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    border: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), #CC6000);
    color: white;
    padding: 14px 28px;
    box-shadow: 0 4px 15px rgba(255, 127, 0, 0.3), 0 0 30px rgba(255, 127, 0, 0.1);
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {

    0%,
    100% {
        box-shadow: 0 4px 15px rgba(255, 127, 0, 0.3), 0 0 30px rgba(255, 127, 0, 0.1);
    }

    50% {
        box-shadow: 0 6px 25px rgba(255, 127, 0, 0.5), 0 0 50px rgba(255, 127, 0, 0.2);
    }
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(255, 127, 0, 0.5), 0 0 60px rgba(255, 127, 0, 0.3);
    filter: brightness(1.15);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-main);
    padding: 14px 28px;
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background-color: rgba(255, 127, 0, 0.05);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 18px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* ===== Top Notifications & Nav ===== */
.top-bar {
    background: linear-gradient(90deg, var(--color-primary), #FF9500, var(--color-primary));
    background-size: 200% 100%;
    color: white;
    text-align: center;
    padding: 10px 0;
    font-size: 0.875rem;
    font-weight: 600;
    animation: gradientShift 3s ease infinite;
    position: relative;
    z-index: 10;
}

@keyframes gradientShift {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

.main-header {
    background-color: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 0;
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-placeholder {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s ease;
}

.logo-placeholder:hover {
    transform: scale(1.05);
}

.nav-logo {
    height: 32px;
    width: 32px;
    border-radius: 50%;
    object-fit: cover;
    transition: all 0.3s ease;
}

.logo-placeholder:hover .nav-logo {
    box-shadow: 0 0 20px rgba(255, 127, 0, 0.5);
}

.logo-text {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.03em;
    color: var(--color-text-main);
}

.logo-accent {
    color: var(--color-primary);
    animation: textGlow 2s ease-in-out infinite alternate;
}

@keyframes textGlow {
    from {
        text-shadow: 0 0 5px rgba(255, 127, 0, 0.5);
    }

    to {
        text-shadow: 0 0 20px rgba(255, 127, 0, 0.8), 0 0 30px rgba(255, 127, 0, 0.4);
    }
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-list {
    display: flex;
    gap: 24px;
}

.nav-list a {
    color: var(--color-text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 4px 0;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), #FFB74D);
    transition: width 0.3s ease;
}

.nav-list a:hover {
    color: var(--color-primary);
}

.nav-list a:hover::after {
    width: 100%;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: 100px 0 120px;
    overflow: hidden;
    background: radial-gradient(circle at 70% 30%, rgba(255, 127, 0, 0.1) 0%, transparent 50%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.2s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-text .badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(255, 127, 0, 0.2), rgba(255, 127, 0, 0.1));
    color: var(--color-primary);
    border: 1px solid rgba(255, 127, 0, 0.4);
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(255, 127, 0, 0.4);
    }

    50% {
        box-shadow: 0 0 0 10px rgba(255, 127, 0, 0);
    }
}

.hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-text-main);
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.accent-text {
    background: linear-gradient(90deg, #FF7F00, #FFB74D, #FF7F00);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: italic;
    animation: gradientText 3s linear infinite;
}

@keyframes gradientText {
    to {
        background-position: 200% center;
    }
}

.hero-text .subtitle {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
    max-width: 500px;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.4s;
}

.cta-group {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.6s;
}

/* Stats Row */
.stats-row {
    display: flex;
    gap: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.8s;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Hero Image - Book Showcase */
.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.4s;
}

.book-showcase {
    position: relative;
    width: 100%;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.showcase-card {
    position: absolute;
    width: 280px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: block;
}

.showcase-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: all 0.3s ease;
}

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.showcase-card:hover .card-overlay {
    transform: translateY(0);
}

.card-overlay h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.card-overlay p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.card-1 {
    left: 0;
    top: 50%;
    transform: translateY(-50%) rotate(-5deg);
    z-index: 2;
    animation: floatBook1 6s ease-in-out infinite;
}

.card-1:hover {
    transform: translateY(-50%) rotate(0deg) scale(1.05);
    z-index: 10;
}

.card-2 {
    right: 0;
    top: 50%;
    transform: translateY(-50%) rotate(5deg);
    z-index: 1;
    animation: floatBook2 6s ease-in-out infinite;
}

.card-2:hover {
    transform: translateY(-50%) rotate(0deg) scale(1.05);
    z-index: 10;
}

@keyframes floatBook1 {

    0%,
    100% {
        transform: translateY(-50%) rotate(-5deg);
    }

    50% {
        transform: translateY(-55%) rotate(-3deg);
    }
}

@keyframes floatBook2 {

    0%,
    100% {
        transform: translateY(-50%) rotate(5deg);
    }

    50% {
        transform: translateY(-45%) rotate(3deg);
    }
}

/* ===== Approach Section ===== */
.approach-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.approach-card {
    background: linear-gradient(145deg, var(--color-bg-card), #1c2129);
    padding: 40px;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px);
}

.approach-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.approach-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(255, 127, 0, 0.1);
}

.approach-icon {
    margin-bottom: 20px;
    color: var(--color-primary);
    background: linear-gradient(135deg, rgba(255, 127, 0, 0.2), rgba(255, 127, 0, 0.05));
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.approach-card:hover .approach-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 0 20px rgba(255, 127, 0, 0.3);
}

.approach-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text-main);
}

.approach-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ===== Ebooks Section ===== */
.ebooks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 48px;
    margin-bottom: 80px;
}

.ebook-card {
    background: linear-gradient(145deg, var(--color-bg-card), #1c2129);
    border-radius: 20px;
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px);
}

.ebook-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.ebook-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5), 0 0 40px rgba(255, 127, 0, 0.15);
}

.ebook-image {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1f27, #0a0e14);
    padding: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ebook-image img {
    max-height: 350px;
    width: auto;
    transition: all 0.4s ease;
}

.ebook-card:hover .ebook-image img {
    transform: scale(1.05);
}

.ebook-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--color-primary), #CC6000);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 15px rgba(255, 127, 0, 0.4);
}

.ebook-badge.new {
    background: linear-gradient(135deg, var(--color-success), #10B981);
    box-shadow: 0 4px 15px rgba(52, 211, 153, 0.4);
}

.ebook-content {
    padding: 32px;
}

.ebook-content h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--color-text-main);
}

.ebook-description {
    color: var(--color-text-muted);
    margin-bottom: 24px;
    line-height: 1.6;
}

.ebook-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.feature-tag {
    background: rgba(255, 127, 0, 0.1);
    color: var(--color-primary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid rgba(255, 127, 0, 0.2);
}

.ebook-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border);
}

.ebook-meta span {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
}

.ebook-meta span::before {
    content: '•';
    color: var(--color-primary);
}

.ebook-pricing {
    margin-bottom: 24px;
}

.price-row {
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.price-current {
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.price-old {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    text-decoration: line-through;
}

.discount-badge {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.3), rgba(52, 211, 153, 0.1));
    color: var(--color-success);
    font-weight: 700;
    font-size: 0.875rem;
    padding: 4px 10px;
    border-radius: 6px;
}

.ebook-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ===== Bundle Card ===== */
.bundle-card {
    background: linear-gradient(145deg, #1a1f27, #0f1419);
    border: 2px solid var(--color-primary);
    border-radius: 20px;
    padding: 48px;
    box-shadow: 0 0 60px rgba(255, 127, 0, 0.2);
    opacity: 0;
    transform: scale(0.95);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.bundle-card.visible {
    opacity: 1;
    transform: scale(1);
}

.bundle-card:hover {
    box-shadow: 0 0 80px rgba(255, 127, 0, 0.3);
    transform: scale(1.02);
}

.bundle-header {
    text-align: center;
    margin-bottom: 40px;
}

.bundle-header h3 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(90deg, #FF7F00, #FFB74D);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bundle-header p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
}

.bundle-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.bundle-includes h4 {
    font-size: 1.125rem;
    margin-bottom: 16px;
    color: var(--color-text-main);
}

.bundle-includes ul {
    list-style: none;
}

.bundle-includes li {
    padding: 8px 0;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.bundle-pricing {
    text-align: center;
}

.bundle-price {
    margin-bottom: 24px;
}

.price-large {
    font-size: 4rem;
    font-weight: 800;
    color: var(--color-primary);
    display: block;
    line-height: 1;
}

.price-compare {
    font-size: 1rem;
    color: var(--color-text-muted);
    text-decoration: line-through;
    display: block;
    margin-top: 8px;
}

/* ===== Audience Section ===== */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.audience-card {
    background: linear-gradient(145deg, var(--color-bg-card), #1c2129);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--color-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(30px);
}

.audience-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.audience-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.audience-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--color-text-main);
}

.audience-card p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--color-text-main);
}

.about-text p {
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 1.05rem;
}

.about-text strong {
    color: var(--color-text-main);
}

.about-image img {
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transition: all 0.4s ease;
}

.about-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 40px rgba(255, 127, 0, 0.1);
}

/* ===== Social Links ===== */
.social-links {
    margin-top: 32px;
}

.social-text {
    color: var(--color-text-main);
    font-weight: 500;
    margin-bottom: 16px;
    font-size: 1rem;
}

.social-icons {
    display: flex;
    gap: 16px;
}

.social-icons a {
    color: var(--color-text-muted);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    border-radius: 50%;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 1px solid transparent;
}

.social-icons a:hover {
    color: var(--color-primary);
    transform: translateY(-5px) scale(1.1);
    background: linear-gradient(145deg, rgba(255, 127, 0, 0.15), rgba(255, 127, 0, 0.05));
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(255, 127, 0, 0.2);
}

.social-icons svg {
    width: 24px;
    height: 24px;
}

/* ===== Footer / Final CTA ===== */
.footer-cta-dark {
    background: linear-gradient(180deg, var(--color-bg-main), #010409);
    padding: 100px 0 40px;
    text-align: center;
    border-top: 1px solid var(--color-border);
    position: relative;
}

.footer-cta-dark::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.cta-centered h2 {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--color-text-main);
}

.guarantee {
    color: var(--color-text-muted);
    margin-bottom: 48px;
    font-size: 1.1rem;
}

.footer-bottom-links {
    margin-top: 80px;
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.disclaimer {
    margin-top: 32px;
    font-size: 0.75rem;
    color: #475569;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Page Loader ===== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(255, 127, 0, 0.1);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), #FFB74D);
    z-index: 1000;
    transition: width 0.1s ease;
}

/* ===== Responsiveness ===== */
@media (max-width: 900px) {
    .container {
        padding: 0 16px;
    }

    .section-padding {
        padding: 48px 0;
    }

    .hero-text h1 {
        font-size: 2.25rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .hero-content,
    .about-content,
    .bundle-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .ebooks-grid {
        grid-template-columns: 1fr;
    }

    .book-showcase {
        height: 400px;
    }

    .showcase-card {
        width: 200px;
    }

    .stats-row {
        gap: 24px;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .cta-group {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .main-nav {
        width: 100%;
        justify-content: center;
        gap: 16px;
        margin-top: 12px;
    }

    .nav-list {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.85rem;
    }

    .logo-text {
        font-size: 1rem;
    }

    .bundle-card {
        padding: 24px;
    }

    .price-large {
        font-size: 3rem;
    }
}