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

:root {
    --accent: #D1534F;
    --accent-light: #F5D5D4;
    --accent-dark: #B8433F;

    /* Light mode (default) */
    --bg: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --bg-tertiary: #E5E5E5;
    --text-primary: #171717;
    --text-secondary: #737373;
    --text-muted: #A3A3A3;
    --border: #E5E5E5;
    --card-bg: #FFFFFF;
    --nav-bg: rgba(255, 255, 255, 0.9);
    --footer-bg: #171717;
    --footer-text: #A3A3A3;
    --footer-heading: #FFFFFF;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0A0A0A;
        --bg-secondary: #171717;
        --bg-tertiary: #262626;
        --text-primary: #FAFAFA;
        --text-secondary: #A3A3A3;
        --text-muted: #737373;
        --border: #262626;
        --card-bg: #171717;
        --nav-bg: rgba(10, 10, 10, 0.9);
        --footer-bg: #0A0A0A;
        --footer-text: #737373;
        --footer-heading: #FAFAFA;
        --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
    }
}

html {
    scroll-behavior: smooth;
}

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

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

.accent {
    color: var(--accent);
}

/* === Typography === */
h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    color: var(--text-secondary);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background: var(--text-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background: var(--bg-tertiary);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.875rem;
}

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

.apple-icon {
    width: 20px;
    height: 20px;
}

/* App Store Badge */
.app-store-badge {
    display: inline-block;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.app-store-badge:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.app-store-badge img {
    display: block;
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 28px;
    height: 28px;
    margin-right: 8px;
    vertical-align: middle;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-download {
    color: var(--accent) !important;
    font-weight: 600;
}

.nav-download:hover {
    color: var(--accent-dark) !important;
}

/* === Hero === */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg) 100%);
}

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

.hero-content {
    max-width: 560px;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin: 24px 0 32px;
    color: var(--text-secondary);
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-note {
    margin-top: 16px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Phone Mockup */
.hero-image {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    position: relative;
    width: 294px;
    height: 600px;
}

.phone-bezel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.phone-screen {
    position: absolute;
    top: 14px;
    left: 18px;
    right: 18px;
    bottom: 14px;
    background: var(--bg);
    border-radius: 36px;
    overflow: hidden;
    z-index: 1;
}

.phone-screen-img {
    position: absolute;
    top: 14px;
    left: 18px;
    width: calc(100% - 36px);
    height: calc(100% - 28px);
    object-fit: cover;
    border-radius: 36px;
    z-index: 1;
}

.phone-screen-light {
    display: block;
}

.phone-screen-dark {
    display: none;
}

@media (prefers-color-scheme: dark) {
    .phone-screen-light {
        display: none;
    }

    .phone-screen-dark {
        display: block;
    }
}


/* === Features === */
.features {
    padding: 120px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 60px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.95rem;
}

/* === Why Switch === */
.why-switch {
    padding: 120px 0;
    background: #171717;
    color: #FAFAFA;
}

.why-switch .section-title {
    color: #FAFAFA;
    margin-bottom: 60px;
}

@media (prefers-color-scheme: dark) {
    .why-switch {
        background: #262626;
    }
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.comparison-card {
    padding: 40px;
    border-radius: var(--radius-lg);
}

.comparison-card.old {
    background: #262626;
}

@media (prefers-color-scheme: dark) {
    .comparison-card.old {
        background: #171717;
    }
}

.comparison-card.new {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
}

.comparison-card h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.comparison-card ul {
    list-style: none;
}

.comparison-card li {
    padding: 12px 0;
    padding-left: 32px;
    position: relative;
    font-size: 1rem;
}

.comparison-card.old li::before {
    content: "✗";
    position: absolute;
    left: 0;
    color: #EF4444;
}

.comparison-card.new li::before {
    content: "✓";
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* === Pricing === */
.pricing {
    padding: 120px 0;
}

.pricing .section-subtitle {
    margin-bottom: 60px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    padding: 48px 40px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
}

.pricing-card.featured {
    background: var(--card-bg);
    border: 2px solid var(--accent);
    box-shadow: var(--shadow-lg);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #FFFFFF;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-tier {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
}

.pricing-period {
    color: var(--text-muted);
    margin-bottom: 32px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 12px 0;
    padding-left: 28px;
    position: relative;
    color: var(--text-secondary);
}

.pricing-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #22C55E;
    font-weight: bold;
}

.pricing-card .btn {
    width: 100%;
}

.pricing-note {
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* === CTA === */
.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg) 100%);
    text-align: center;
}

.cta h2 {
    margin-bottom: 16px;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 32px;
}

/* === Footer === */
.footer {
    padding: 80px 0 40px;
    background: var(--footer-bg);
    color: var(--footer-text);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

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

.footer-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--footer-heading);
}

.footer-brand p {
    color: var(--footer-text);
}

.footer-links h4 {
    color: var(--footer-heading);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-links a {
    display: block;
    color: var(--footer-text);
    text-decoration: none;
    padding: 8px 0;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
}

/* === Legal Pages === */
.legal-page {
    padding: 140px 0 80px;
}

.legal-page h1 {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.legal-page .last-updated {
    color: var(--text-muted);
    margin-bottom: 48px;
}

.legal-content {
    max-width: 800px;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin-top: 48px;
    margin-bottom: 16px;
}

.legal-content h3 {
    margin-top: 32px;
    margin-bottom: 12px;
}

.legal-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.legal-content ul {
    margin-bottom: 16px;
    padding-left: 24px;
}

.legal-content li {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

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

/* === Responsive === */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        max-width: 100%;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links a:not(.btn) {
        display: none;
    }

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

    .comparison-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

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

    .phone-mockup {
        width: 245px;
        height: 500px;
    }

    .phone-screen {
        top: 12px;
        left: 15px;
        right: 15px;
        bottom: 12px;
        border-radius: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .features,
    .why-switch,
    .pricing,
    .cta {
        padding: 80px 0;
    }

    .btn-large {
        width: 100%;
    }
}