/* DESIGN SYSTEM: VIBECODING MASTER-SLIDE */

:root {
    /* Brand Colors - Sunset Amber */
    --primary: #B45309;
    /* Amber 700 */
    --primary-light: #F59E0B;
    /* Amber 500 */
    --primary-dark: #7C2D12;
    /* Amber 900 */

    /* Dark Theme Palette */
    --bg-deep: #020617;
    /* Slate 950 */
    --bg-surface: #0F172A;
    /* Slate 900 */
    --bg-glass: rgba(15, 23, 42, 0.7);

    /* Text Color */
    --text-primary: #F8FAFC;
    /* Slate 50 */
    --text-muted: #94A3B8;
    /* Slate 400 */

    /* Effects */
    --shadow-amber: 0 10px 30px -10px rgba(180, 83, 9, 0.5);
    --border-glass: 1px solid rgba(255, 255, 255, 0.1);

    /* Transitions */
    --smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 1. RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background: var(--bg-deep);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
.logo {
    font-family: 'Playfair Display', serif;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* 2. PRICE BANNER */
.price-banner {
    background: linear-gradient(90deg, var(--primary-dark), var(--primary));
    color: white;
    padding: 10px 20px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* 3. NAVIGATION */
header {
    padding: 24px 0;
    position: relative;
    z-index: 10;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: white;
    letter-spacing: -0.04em;
    font-family: 'Outfit', sans-serif;
    /* Branding usually uses Outfit or similar */
}

.logo span {
    color: #F59E0B;
    /* Match gold/amber */
}

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

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    transition: var(--smooth);
}

.nav-links a:hover {
    color: white;
}

/* 4. BUTTONS */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--smooth);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-amber);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px -10px rgba(180, 83, 9, 0.7);
}

.btn-xl {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.1);
    color: white;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary);
}

.shadow-glow {
    animation: glow-pulse 2s infinite alternate;
}

@keyframes glow-pulse {
    from {
        box-shadow: 0 0 10px var(--primary);
    }

    to {
        box-shadow: 0 0 30px var(--primary-light);
    }
}

/* 5. HERO SECTION */
.hero {
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(180, 83, 9, 0.1) 0%, transparent 70%);
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.badge {
    background: rgba(180, 83, 9, 0.1);
    color: var(--primary-light);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: inline-block;
    margin-bottom: 24px;
}

h1 {
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 1.1;
    margin-bottom: 24px;
    font-weight: 900;
}

h1 span {
    background: linear-gradient(to right, #F59E0B, #B45309);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

p.lead {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

/* 6. BOOK VISUAL */
.hero-visual {
    perspective: 1000px;
    display: flex;
    justify-content: center;
}

.book-container {
    width: 320px;
    height: 480px;
    position: relative;
    transform: rotateY(-20deg) rotateX(10deg);
    transition: var(--smooth);
    cursor: pointer;
}

.book-container:hover {
    transform: rotateY(0deg) rotateX(0deg) scale(1.05);
}

.book-cover-mockup {
    width: 100%;
    height: 100%;
    background: #ffffff;
    border-radius: 5px 15px 15px 5px;
    box-shadow: 20px 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: #111;
}

.book-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('assets/cover-bg.png') no-repeat center bottom;
    background-size: cover;
    z-index: 1;
}

.book-content {
    position: relative;
    z-index: 2;
    padding-top: 60px;
    width: 100%;
}

.book-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 30px;
    line-height: 1.1;
    color: #000;
}

.book-title span {
    display: block;
    font-size: 1.9rem;
    margin-top: 2px;
    color: #111;
}

.book-tagline {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #666;
    max-width: 80%;
    margin: 0 auto 40px;
    font-weight: 600;
}

.book-author {
    font-size: 0.9rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    color: var(--primary);
    text-transform: uppercase;
}

.glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
    z-index: -1;
}

/* 7. PAINS GRID */
.pains-section {
    padding: 100px 0;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 60px;
}

.pains-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: var(--border-glass);
    border-radius: 24px;
    padding: 48px;
    transition: var(--smooth);
}

.pain-card:hover {
    border-color: var(--primary);
    transform: translateY(-10px);
}

.pain-icon {
    font-size: 3rem;
    margin-bottom: 24px;
    display: block;
}

.pain-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: white;
}

.pain-card p {
    color: var(--text-muted);
}

/* 8. METHOD SECTION */
.method-section {
    padding: 150px 0;
}

.method-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.method-text h2 {
    font-size: 3.5rem;
    margin-bottom: 32px;
}

.method-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.check-list {
    list-style: none;
}

.check-list li {
    margin-bottom: 24px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    font-size: 1.1rem;
}

.check-list li::before {
    content: '✓';
    color: var(--primary-light);
    font-weight: 900;
    background: rgba(180, 83, 9, 0.1);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
}

/* PIPELINE VISUAL */
.pipeline {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.pipeline-step {
    background: var(--bg-surface);
    border: var(--border-glass);
    padding: 16px 40px;
    border-radius: 12px;
    width: 200px;
    text-align: center;
    font-weight: 600;
    transition: var(--smooth);
}

.pipeline-connector {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary), transparent);
}

.pipeline-step.success {
    background: linear-gradient(135deg, #065f46, #064e3b);
    border-color: #10b981;
    color: white;
}

/* 9. LEAD SECTION */
.lead-section {
    padding: 100px 0;
}

.lead-card {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.lead-card h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.lead-card p {
    margin-bottom: 40px;
    color: var(--text-muted);
}

.email-form .input-group {
    display: flex;
    gap: 12px;
    max-width: 600px;
    margin: 0 auto;
}

.email-form input {
    flex: 1;
    padding: 18px 24px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    border: var(--border-glass);
    color: white;
    font-family: inherit;
    font-size: 1rem;
}

.email-form input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

/* 10. CTA SECTION */
.cta-section {
    padding: 150px 0;
}

.price-box {
    margin: 40px 0;
}

.price {
    font-size: 6rem;
    font-weight: 900;
    line-height: 1;
    font-family: 'Playfair Display', serif;
}

.price span {
    font-size: 2rem;
    opacity: 0.5;
}

.price-strikethrough {
    font-size: 1.5rem;
    text-decoration: line-through;
    color: var(--text-muted);
    opacity: 0.5;
}

/* 11. FOOTER */
footer {
    padding: 80px 0;
    border-top: var(--border-glass);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 40px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
}

/* 12. RESPONSIVE */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-btns,
    .email-form .input-group,
    .pains-grid {
        flex-direction: column;
        align-items: center;
    }

    .hero-btns a,
    .email-form input,
    .email-form button {
        width: 100%;
    }

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

    .method-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .nav-links {
        display: none;
        /* Mobile Menu needed for production */
    }
}

.form-msg {
    margin-top: 20px;
    font-weight: 600;
}

.form-msg.success {
    color: #10b981;
}

.form-msg.error {
    color: #f43f5e;
}