:root {
    --navy-darkest: #0a1420;
    --navy-dark: #0d1b2a;
    --navy-mid: #1b263b;
    --navy-light: #2d3a4a;
    --gold: #c5b38d;
    --gold-light: #d4c4a0;
    --gold-dark: #a89968;
    --cream: #e8e4dc;
    --cream-muted: rgba(232, 228, 220, 0.75);
    --font-display: 'Cinzel', serif;
    --font-body: 'Cormorant Garamond', serif;
    --font-ui: 'Josefin Sans', sans-serif;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); font-size: 18px; line-height: 1.7; color: var(--cream); background: var(--navy-darkest); }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 500; line-height: 1.3; }
h1 { font-size: clamp(2rem, 4vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-tag { font-family: var(--font-ui); font-size: 0.75rem; letter-spacing: 3px; text-transform: uppercase; color: var(--gold); display: block; margin-bottom: 12px; }
.section-title { margin-bottom: 24px; }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; font-family: var(--font-ui); font-size: 0.85rem; letter-spacing: 2px; text-transform: uppercase; border-radius: 3px; transition: all 0.3s; }
.btn-primary { background: linear-gradient(135deg, var(--gold-light), var(--gold)); color: var(--navy-darkest); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(197,179,141,0.3); }
.btn-secondary { border: 1px solid var(--gold); color: var(--gold); }
.btn-secondary:hover { background: rgba(197,179,141,0.1); }
.btn-full { width: 100%; justify-content: center; }

/* Navigation */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 16px 0; transition: all 0.3s; }
.nav.scrolled { background: rgba(10,20,32,0.95); backdrop-filter: blur(10px); }
.nav-container { max-width: 1400px; margin: 0 auto; padding: 0 32px; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 1rem; letter-spacing: 2px; color: var(--gold); }
.nav-anchor { width: 24px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-family: var(--font-ui); font-size: 0.75rem; letter-spacing: 2px; text-transform: uppercase; color: var(--cream-muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--gold); }
.nav-btn { padding: 8px 16px; border: 1px solid var(--gold); border-radius: 2px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--gold); }

/* Hero */
.hero { min-height: 100vh; display: flex; align-items: center; padding: 120px 0 80px; position: relative; }
.hero-bg { position: absolute; inset: 0; }
.hero-gradient { position: absolute; inset: 0; background: radial-gradient(ellipse at 30% 20%, rgba(45,58,74,0.4) 0%, transparent 50%), linear-gradient(180deg, var(--navy-darkest), var(--navy-mid), var(--navy-darkest)); }
.hero-content { position: relative; max-width: 1400px; margin: 0 auto; padding: 0 32px; display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }

.hero-book { display: flex; justify-content: center; perspective: 2000px; }
.book-3d { animation: bookFloat 6s ease-in-out infinite; }
@keyframes bookFloat { 0%, 100% { transform: rotateY(-10deg); } 50% { transform: rotateY(-5deg) translateY(-10px); } }
.book-front { width: 280px; height: 420px; background: linear-gradient(170deg, var(--navy-dark), var(--navy-mid), var(--navy-light), var(--navy-mid)); border-radius: 0 4px 4px 0; box-shadow: 0 20px 60px rgba(0,0,0,0.5); position: relative; }
.book-front::after { content: ''; position: absolute; top: 16px; left: 16px; right: 16px; bottom: 16px; border: 1px solid rgba(197,179,141,0.25); }
.book-inner { height: 100%; display: flex; flex-direction: column; justify-content: space-between; padding: 40px 24px; text-align: center; position: relative; }
.book-number { font-family: var(--font-display); font-size: 42px; color: var(--gold); letter-spacing: 4px; }
.book-days { font-family: var(--font-ui); font-size: 11px; letter-spacing: 5px; text-transform: uppercase; color: rgba(197,179,141,0.7); }
.book-anchor { width: 80px; margin: 0 auto; color: var(--gold); }
.book-anchor svg { width: 100%; }
.book-title { font-family: var(--font-display); font-size: 24px; letter-spacing: 3px; text-transform: uppercase; }
.book-subtitle { font-size: 11px; font-style: italic; color: var(--cream-muted); margin-top: 8px; }
.book-author { font-family: var(--font-ui); font-size: 10px; letter-spacing: 3px; text-transform: uppercase; color: rgba(197,179,141,0.6); }

.hero-tagline { font-family: var(--font-ui); font-size: 0.75rem; letter-spacing: 4px; text-transform: uppercase; color: var(--gold); margin-bottom: 16px; }
.hero-title { margin-bottom: 24px; }
.hero-description { font-size: 1.1rem; color: var(--cream-muted); margin-bottom: 32px; max-width: 500px; }
.hero-cta { display: flex; gap: 16px; }

/* Sections */
.about, .preview, .preorder { padding: 100px 0; }
.about { background: var(--navy-dark); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-text { font-size: 1.1rem; color: var(--cream-muted); margin-bottom: 16px; }
.about-text strong { color: var(--gold); }
.about-quote { margin-top: 32px; padding: 24px; border-left: 2px solid var(--gold); background: rgba(197,179,141,0.05); }
.about-quote blockquote { font-size: 1.2rem; font-style: italic; margin-bottom: 8px; }
.about-quote cite { font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); }
.about-visual { display: flex; flex-direction: column; gap: 16px; }
.about-card { padding: 24px; background: rgba(27,38,59,0.5); border: 1px solid rgba(197,179,141,0.15); border-radius: 4px; transition: all 0.3s; }
.about-card:hover { border-color: rgba(197,179,141,0.3); transform: translateX(8px); }
.about-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.about-card p { font-size: 0.95rem; color: var(--cream-muted); }

.preview { background: var(--navy-dark); }
.preview-header { text-align: center; margin-bottom: 48px; }
.preview-content { max-width: 700px; margin: 0 auto; }
.preview-card { background: rgba(27,38,59,0.8); border: 1px solid rgba(197,179,141,0.2); border-radius: 8px; overflow: hidden; }
.preview-day { display: flex; justify-content: space-between; padding: 20px 24px; background: rgba(197,179,141,0.1); border-bottom: 1px solid rgba(197,179,141,0.15); }
.day-number { font-family: var(--font-display); font-size: 1.2rem; color: var(--gold); }
.day-theme { font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; color: var(--cream-muted); }
.preview-section { padding: 24px; border-bottom: 1px solid rgba(197,179,141,0.1); }
.preview-section:last-child { border-bottom: none; }
.preview-section h4 { font-family: var(--font-ui); font-size: 0.65rem; letter-spacing: 3px; text-transform: uppercase; color: var(--gold); margin-bottom: 12px; }
.preview-section blockquote { font-size: 1.1rem; font-style: italic; margin-bottom: 8px; }
.preview-section cite { font-family: var(--font-ui); font-size: 0.65rem; color: rgba(197,179,141,0.7); }
.preview-section p { color: var(--cream-muted); font-size: 0.95rem; }
.preview-fade { font-family: var(--font-ui); font-size: 0.75rem; color: var(--gold); font-style: italic; }

.email-signup { padding: 100px 0; background: linear-gradient(135deg, var(--navy-darkest), var(--navy-mid)); }
.signup-box { max-width: 600px; margin: 0 auto; padding: 48px; background: rgba(27,38,59,0.5); border: 1px solid rgba(197,179,141,0.2); border-radius: 8px; text-align: center; }
.signup-content h2 { margin-bottom: 12px; }
.signup-content > p { color: var(--cream-muted); margin-bottom: 32px; }
.signup-form { display: flex; flex-direction: column; gap: 12px; }
.form-group input, .form-group textarea, .form-group select { width: 100%; padding: 14px 18px; font-family: var(--font-body); font-size: 1rem; color: var(--cream); background: rgba(10,20,32,0.8); border: 1px solid rgba(197,179,141,0.2); border-radius: 4px; }
.form-group input::placeholder { color: rgba(232,228,220,0.4); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--gold); }
.signup-note { font-size: 0.85rem; color: rgba(232,228,220,0.5); margin-top: 12px; }

.preorder { background: var(--navy-dark); }
.preorder-header { text-align: center; margin-bottom: 48px; }
.preorder-header p { color: var(--cream-muted); }
.preorder-header strong { color: var(--gold); }
.preorder-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 1000px; margin: 0 auto; }
.preorder-card { position: relative; padding: 32px; background: rgba(13,27,42,0.8); border: 1px solid rgba(197,179,141,0.15); border-radius: 8px; text-align: center; }
.preorder-card.premium { border-color: var(--gold); }
.preorder-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); padding: 6px 16px; font-family: var(--font-ui); font-size: 0.6rem; letter-spacing: 2px; text-transform: uppercase; background: var(--gold); color: var(--navy-darkest); border-radius: 2px; }
.preorder-card h3 { margin-bottom: 16px; }
.preorder-price { margin-bottom: 24px; }
.preorder-price .price { font-family: var(--font-display); font-size: 2.5rem; color: var(--gold); }
.preorder-features { list-style: none; text-align: left; margin-bottom: 24px; }
.preorder-features li { padding: 8px 0; font-size: 0.9rem; color: var(--cream-muted); padding-left: 24px; position: relative; }
.preorder-features li::before { content: '✓'; position: absolute; left: 0; color: var(--gold); }
.preorder-features li strong { color: var(--gold); }

.footer { padding: 80px 0 32px; background: var(--navy-darkest); border-top: 1px solid rgba(197,179,141,0.15); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-logo { font-family: var(--font-display); font-size: 1rem; letter-spacing: 2px; color: var(--gold); display: block; margin-bottom: 8px; }
.footer-brand p { font-size: 0.9rem; color: var(--cream-muted); }
.footer-links h4 { font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); margin-bottom: 16px; }
.footer-links a { display: block; font-size: 0.9rem; color: var(--cream-muted); padding: 6px 0; }
.footer-links a:hover { color: var(--gold); }
.footer-bottom { text-align: center; padding-top: 32px; border-top: 1px solid rgba(197,179,141,0.1); }
.footer-bottom p { font-size: 0.8rem; color: rgba(232,228,220,0.4); }

/* Modal */
.modal { display: none; position: fixed; inset: 0; z-index: 2000; align-items: center; justify-content: center; padding: 20px; }
.modal.active { display: flex; }
.modal-overlay { position: absolute; inset: 0; background: rgba(10,20,32,0.9); }
.modal-content { position: relative; width: 100%; max-width: 500px; max-height: 90vh; overflow-y: auto; padding: 32px; background: var(--navy-mid); border: 1px solid rgba(197,179,141,0.2); border-radius: 8px; }
.modal-close { position: absolute; top: 16px; right: 16px; font-size: 28px; color: var(--cream-muted); }
.modal-close:hover { color: var(--gold); }
.modal-content h3 { margin-bottom: 8px; }
.modal-content > p { color: var(--gold); margin-bottom: 24px; }
.order-form label { display: block; font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 1px; text-transform: uppercase; color: var(--cream-muted); margin-bottom: 6px; }
.order-form .form-group { margin-bottom: 16px; }
.order-form textarea { min-height: 60px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.toast { position: fixed; bottom: 24px; right: 24px; padding: 16px 24px; background: var(--gold); color: var(--navy-darkest); border-radius: 4px; transform: translateY(100px); opacity: 0; transition: all 0.3s; z-index: 3000; }
.toast.active { transform: translateY(0); opacity: 1; }
.toast.error { background: #ef4444; color: #fff; }
.toast p { font-family: var(--font-ui); font-size: 0.85rem; }

@media (max-width: 1024px) {
    .hero-content, .about-grid { grid-template-columns: 1fr; gap: 48px; text-align: center; }
    .hero-text { order: -1; }
    .hero-cta { justify-content: center; }
    .preorder-grid { grid-template-columns: 1fr; max-width: 400px; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 24px; background: rgba(10,20,32,0.98); }
    .nav-links.active { display: flex; }
    .nav-toggle { display: flex; }
    .book-front { width: 220px; height: 330px; }
    .book-number { font-size: 32px; }
    .book-title { font-size: 18px; }
    .book-anchor { width: 60px; }
    .hero-cta { flex-direction: column; }
    .form-row { grid-template-columns: 1fr; }
}