/* ===== CSS Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --text-primary: #f5f2eb;
    --text-secondary: #9a998e;
    --accent: #e88d72;
    --accent-hover: #d67a5f;
    --border: rgba(255, 255, 255, 0.08);
    --gradient-1: linear-gradient(135deg, #e88d72 0%, #c9977b 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
}

.nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    padding-bottom: 16px;
}

.logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.logo a {
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

.btn-small {
    padding: 8px 16px;
    background: var(--accent);
    color: var(--bg-primary);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background 0.2s;
}

.btn-small:hover {
    background: var(--accent-hover);
}

/* ===== Hero ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 80px;
    align-items: center;
}

.hero-content h1 {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.05;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 32px;
}

.hero-actions {
    margin-bottom: 16px;
}

.hero-note {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 16px 32px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

/* Screenshot */
.screenshot-container {
    position: relative;
}

.app-screenshot {
    width: 100%;
    max-width: 380px;
    border-radius: 24px;
    box-shadow: 0 40px 100px rgba(232, 141, 114, 0.15);
}

.screenshot-placeholder {
    display: none;
    width: 100%;
    max-width: 380px;
    aspect-ratio: 9/19.5;
    background: var(--bg-tertiary);
    border: 2px dashed var(--border);
    border-radius: 24px;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.placeholder-text {
    color: var(--text-secondary);
}

.placeholder-text span {
    font-size: 3rem;
    display: block;
    margin-bottom: 12px;
}

.placeholder-text code {
    font-family: 'SF Mono', Monaco, monospace;
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

/* ===== Features ===== */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.features h2 {
    font-size: 2.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 8px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature {
    background: var(--bg-tertiary);
    border-radius: 16px;
    padding: 32px;
    border: 1px solid var(--border);
    transition: border-color 0.2s, transform 0.2s;
}

.feature:hover {
    border-color: rgba(232, 141, 114, 0.3);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.feature h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.93rem;
    line-height: 1.6;
}

/* ===== How it works ===== */
.how {
    padding: 100px 0;
}

.how h2 {
    font-size: 2.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 60px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.step {
    text-align: center;
}

.step-number {
    width: 56px;
    height: 56px;
    background: var(--accent);
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 24px;
}

.step h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.step p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Why section ===== */
.why {
    padding: 100px 0;
    background: var(--bg-secondary);
    text-align: center;
}

.why-content {
    max-width: 680px;
    margin: 0 auto;
}

.why h2 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 24px;
    line-height: 1.3;
}

.why p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 20px;
}

.why-highlight {
    color: var(--accent);
    font-size: 1.15rem;
    font-weight: 500;
    margin-top: 32px;
}

/* ===== FAQ ===== */
.faq {
    padding: 100px 0;
}

.faq h2 {
    font-size: 2.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 50px;
}

.faq-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border);
}

.faq-item h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

/* ===== CTA ===== */
.cta {
    padding: 100px 0;
    background: var(--bg-secondary);
    text-align: center;
}

.cta h2 {
    font-size: 2.2rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.cta-subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-top: 28px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-logo {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.footer-logo a {
    color: var(--text-primary);
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-copy {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* ===== Privacy Page ===== */
.privacy-page {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.privacy-page h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.privacy-date {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.privacy-content {
    max-width: 720px;
}

.privacy-content h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.privacy-content p {
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.privacy-content ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 20px;
}

.privacy-content li {
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
    margin-bottom: 8px;
}

.privacy-content li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent);
}

.privacy-content a {
    color: var(--accent);
}

.privacy-content a:hover {
    text-decoration: underline;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 48px;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .faq-list {
        grid-template-columns: 1fr;
    }

    .screenshot-container,
    .screenshot-placeholder {
        margin: 0 auto;
    }
}

@media (max-width: 600px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

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

    .faq-list {
        grid-template-columns: 1fr;
    }

    .nav-links {
        gap: 12px;
    }

    .nav-links a:not(.btn-small) {
        display: none;
    }

    .cta-features {
        flex-direction: column;
        gap: 8px;
    }

    .footer-links {
        flex-direction: column;
        gap: 12px;
    }
}