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

:root {
    --zen-bg: #faf6f1;
    --zen-bg-dark: #1a1512;
    --zen-text: #2c2417;
    --zen-text-light: #6b5d4f;
    --zen-accent: #c4956a;
    --zen-accent-dark: #a67a52;
    --zen-gold: #d4a754;
    --zen-green: #7dab8e;
    --zen-card: #ffffff;
    --zen-border: rgba(44, 36, 23, 0.08);
    --zen-shadow: 0 4px 24px rgba(44, 36, 23, 0.06);
    --zen-shadow-lg: 0 12px 48px rgba(44, 36, 23, 0.1);
    --zen-radius: 16px;
    --zen-radius-sm: 8px;
    --zen-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Vazirmatn', system-ui, -apple-system, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--zen-bg);
    color: var(--zen-text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

/* === Navbar === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(250, 246, 241, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--zen-border);
    transition: var(--zen-transition);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon { font-size: 1.5rem; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--zen-text-light);
    transition: var(--zen-transition);
}

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

.nav-cta {
    background: var(--zen-accent);
    color: white !important;
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    font-weight: 600 !important;
}

.nav-cta:hover { background: var(--zen-accent-dark); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--zen-text);
    border-radius: 2px;
    transition: var(--zen-transition);
}

/* === Hero === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(196, 149, 106, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(125, 171, 142, 0.08) 0%, transparent 40%),
        radial-gradient(ellipse at 50% 80%, rgba(212, 167, 84, 0.06) 0%, transparent 40%);
    animation: heroBgPulse 8s ease-in-out infinite alternate;
}

@keyframes heroBgPulse {
    from { opacity: 0.7; }
    to { opacity: 1; }
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    background: rgba(196, 149, 106, 0.12);
    color: var(--zen-accent-dark);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(196, 149, 106, 0.2);
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.25rem;
    letter-spacing: -0.01em;
}

.highlight {
    background: linear-gradient(135deg, var(--zen-accent), var(--zen-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--zen-text-light);
    max-width: 540px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--zen-transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--zen-accent);
    color: white;
    box-shadow: 0 4px 16px rgba(196, 149, 106, 0.3);
}

.btn-primary:hover {
    background: var(--zen-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(196, 149, 106, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--zen-text);
    border: 1.5px solid var(--zen-border);
}

.btn-secondary:hover {
    border-color: var(--zen-accent);
    color: var(--zen-accent);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
}

.stat { text-align: center; }

.stat-number {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--zen-accent);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--zen-text-light);
}

.hero-scroll {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--zen-text-light);
    opacity: 0.6;
}

.scroll-indicator {
    width: 2px;
    height: 24px;
    background: var(--zen-accent);
    border-radius: 2px;
    animation: scrollPulse 1.5s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { transform: scaleY(0.5); opacity: 0.4; }
    50% { transform: scaleY(1); opacity: 1; }
}

/* === Section Headers === */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-tag {
    display: inline-block;
    background: rgba(196, 149, 106, 0.1);
    color: var(--zen-accent-dark);
    padding: 0.3rem 0.9rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.section-desc {
    color: var(--zen-text-light);
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

/* === Features === */
.features {
    padding: 6rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: var(--zen-card);
    border: 1px solid var(--zen-border);
    border-radius: var(--zen-radius);
    padding: 2rem;
    transition: var(--zen-transition);
    opacity: 0;
    transform: translateY(20px);
}

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

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--zen-shadow-lg);
    border-color: rgba(196, 149, 106, 0.2);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: var(--zen-text-light);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* === Philosophy === */
.philosophy {
    padding: 6rem 0;
    background: linear-gradient(180deg, rgba(196, 149, 106, 0.04) 0%, transparent 100%);
}

.philosophy-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.zen-quote {
    margin: 2rem 0;
    padding: 2rem;
    background: var(--zen-card);
    border-radius: var(--zen-radius);
    border-right: 4px solid var(--zen-accent);
    box-shadow: var(--zen-shadow);
}

.zen-quote p {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--zen-text);
    margin-bottom: 0.75rem;
    line-height: 1.8;
}

.zen-quote cite {
    font-size: 0.85rem;
    color: var(--zen-text-light);
    font-style: normal;
}

.philosophy-text {
    color: var(--zen-text-light);
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: 2.5rem;
}

.philosophy-principles {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    text-align: right;
}

.principle {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--zen-card);
    padding: 1.25rem 1.5rem;
    border-radius: var(--zen-radius-sm);
    border: 1px solid var(--zen-border);
    transition: var(--zen-transition);
}

.principle:hover {
    border-color: rgba(196, 149, 106, 0.2);
    box-shadow: var(--zen-shadow);
}

.principle-icon { font-size: 1.75rem; }

.principle h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.principle p {
    font-size: 0.8rem;
    color: var(--zen-text-light);
}

/* === Screenshots === */
.screenshots {
    padding: 6rem 0;
}

.screenshots-showcase {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    perspective: 1000px;
}

.phone-mockup {
    width: 220px;
    background: #1a1512;
    border-radius: 28px;
    padding: 12px;
    box-shadow: var(--zen-shadow-lg);
    transition: var(--zen-transition);
    opacity: 0;
    transform: translateY(30px);
}

.phone-mockup.visible {
    opacity: 1;
    transform: translateY(0);
}

.phone-mockup:hover {
    transform: translateY(-8px) scale(1.02);
}

.phone-screen {
    background: var(--zen-bg);
    border-radius: 18px;
    overflow: hidden;
    aspect-ratio: 9/16;
}

.mock-content {
    padding: 1.25rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.mock-header {
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--zen-border);
}

.mock-card {
    background: var(--zen-card);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--zen-border);
}

.mock-quote {
    font-size: 0.65rem;
    color: var(--zen-text-light);
    font-style: italic;
    margin-bottom: 0.75rem;
    text-align: center;
}

.mock-habits {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mock-habit {
    font-size: 0.6rem;
    padding: 0.4rem 0.6rem;
    background: rgba(196, 149, 106, 0.06);
    border-radius: 6px;
    border: 1px solid var(--zen-border);
}

.mock-habit.done {
    background: rgba(125, 171, 142, 0.1);
    border-color: rgba(125, 171, 142, 0.3);
    color: var(--zen-green);
}

.zen-mock {
    justify-content: center;
    align-items: center;
    text-align: center;
}

.mock-timer {
    font-size: 2rem;
    font-weight: 700;
    color: var(--zen-accent);
    margin: 1rem 0;
}

.mock-status {
    font-size: 0.7rem;
    color: var(--zen-text-light);
}

.stats-mock { align-items: center; }

.mock-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 100px;
    margin: 1.5rem 0;
    padding: 0 0.5rem;
}

.mock-chart .bar {
    flex: 1;
    background: linear-gradient(to top, var(--zen-accent), var(--zen-gold));
    border-radius: 4px 4px 0 0;
    min-height: 10px;
    transition: var(--zen-transition);
}

.mock-streak {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--zen-gold);
    margin-top: auto;
}

/* === Download === */
.download {
    padding: 6rem 0;
    background: linear-gradient(180deg, transparent 0%, rgba(196, 149, 106, 0.06) 100%);
}

.download-content {
    text-align: center;
    max-width: 500px;
    margin: 0 auto;
}

.download-content h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.download-content > p {
    color: var(--zen-text-light);
    margin-bottom: 2rem;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--zen-text);
    color: white;
    padding: 0.875rem 1.5rem;
    border-radius: 12px;
    transition: var(--zen-transition);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(44, 36, 23, 0.2);
}

.download-icon { font-size: 1.75rem; }

.download-text small {
    display: block;
    font-size: 0.65rem;
    opacity: 0.7;
}

.download-text strong {
    font-size: 1rem;
}

.download-note {
    font-size: 0.75rem;
    color: var(--zen-text-light);
}

/* === Footer === */
.footer {
    padding: 3rem 0 1.5rem;
    border-top: 1px solid var(--zen-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-brand .logo-icon { font-size: 1.5rem; }
.footer-brand .logo-text { font-size: 1.1rem; font-weight: 700; }
.footer-brand p { font-size: 0.8rem; color: var(--zen-text-light); }

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--zen-text-light);
    transition: var(--zen-transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--zen-border);
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--zen-text-light);
}

/* === Animations === */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--zen-bg);
        padding: 1.5rem;
        border-bottom: 1px solid var(--zen-border);
        gap: 1rem;
    }
    .nav-toggle { display: flex; }
    
    .hero { padding: 6rem 0 3rem; min-height: auto; }
    .hero-stats { gap: 1.5rem; }
    .hero-scroll { display: none; }
    
    .features-grid { grid-template-columns: 1fr; }
    
    .screenshots-showcase { gap: 1.5rem; }
    .phone-mockup { width: 180px; }
    
    .download-buttons { flex-direction: column; align-items: center; }
    
    .footer-content { flex-direction: column; text-align: center; }
    .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .hero-subtitle { font-size: 0.95rem; }
    .btn { padding: 0.75rem 1.25rem; font-size: 0.9rem; }
    .phone-mockup { width: 150px; }
}