/* ==========================================================================
   Streak7 Landing Page - Dark Theme
   ========================================================================== */

/* Google Font - Serif for headlines */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&display=swap');

/* CSS Variables */
:root {
    /* Colors */
    --color-bg: #0a0a0a;
    --color-bg-content: #141414;
    --color-bg-alt: #111111;
    --color-text: #ffffff;
    --color-text-secondary: #888888;
    --color-accent: #FF3B30;
    --color-border: #222222;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;
    --space-4xl: 12rem;

    /* Typography */
    --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-sans: "Helvetica Neue", Helvetica, -apple-system, BlinkMacSystemFont, Arial, sans-serif;

    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2.25rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;

    /* Layout */
    --max-width: 1100px;
    --border-radius: 0;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    line-height: 1.1;
    font-weight: 400;
}

p {
    margin-bottom: var(--space-sm);
}

p:last-child {
    margin-bottom: 0;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

/* ==========================================================================
   Splash Overlay
   ========================================================================== */

#splash-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease;
}

#splash-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

#splash-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ==========================================================================
   Bracket Button Component
   ========================================================================== */

.bracket-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    position: relative;
    transition: all 0.3s ease;
}

.bracket-btn::before,
.bracket-btn::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    border: 1px solid var(--color-text-secondary);
    transition: border-color 0.3s ease;
}

.bracket-btn::before {
    top: 0;
    left: 0;
    border-right: none;
    border-bottom: none;
}

.bracket-btn::after {
    bottom: 0;
    right: 0;
    border-left: none;
    border-top: none;
}

.bracket-btn:hover {
    opacity: 1;
}

.bracket-btn:hover::before,
.bracket-btn:hover::after {
    border-color: var(--color-text);
}

/* ==========================================================================
   Logo Component
   ========================================================================== */

.logo {
    height: 40px;
    width: auto;
}

.footer .logo {
    height: 40px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('https://imagedelivery.net/fDnEZb1UO9VbJZwhYJTVsA/b14e1202-40a6-44f6-92ee-b81293dd9f00/public');
    background-size: cover;
    background-position: center;
}

.hero-nav {
    position: relative;
    z-index: 10;
    padding: var(--space-lg) 0;
}

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

.hero-content {
    position: relative;
    z-index: 10;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-bottom: var(--space-3xl);
}

.hero-content .container {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 400;
    line-height: 0.85;
    letter-spacing: -0.04em;
    max-width: 600px;
}

.hero-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.hero-tagline {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    max-width: 700px;
    line-height: 1.5;
}

.hero-ctas {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.bracket-btn-primary {
    background: var(--color-accent);
    color: var(--color-text);
    border-radius: 4px;
    padding: var(--space-sm) var(--space-lg);
}

.bracket-btn-primary::before,
.bracket-btn-primary::after {
    display: none;
}

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

/* ==========================================================================
   Origin Story Section
   ========================================================================== */

.origin-story {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
}

.origin-story-content {
    max-width: 600px;
}

.origin-story-title {
    font-size: var(--font-size-3xl);
    line-height: 1.2;
    margin-bottom: var(--space-xl);
    color: var(--color-text);
}

.origin-story-content p {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.origin-story-content p:last-child {
    margin-bottom: 0;
    margin-top: var(--space-xl);
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-text);
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */

.how-it-works {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
}

.how-it-works-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    max-width: 600px;
}

.how-it-works-intro {
    font-size: var(--font-size-lg);
    line-height: 1.5;
    color: var(--color-text);
}

.how-it-works-example {
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
}

.example-title {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.example-days {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, monospace;
    font-size: var(--font-size-base);
    margin-bottom: var(--space-lg);
}

.example-day {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.day-name {
    width: 100px;
    color: var(--color-text-secondary);
}

.day-check {
    font-weight: bold;
}

.day-check.done {
    color: #34C759;
}

.day-check.missed {
    color: var(--color-accent);
}

.day-note {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.example-result {
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.how-it-works-closing {
    font-size: var(--font-size-md);
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* ==========================================================================
   Features Section
   ========================================================================== */

.features {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
}

.features-header {
    margin-bottom: var(--space-3xl);
}

.features-title {
    font-size: var(--font-size-3xl);
    max-width: 500px;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.feature-card {
    padding: var(--space-xl);
    background-color: var(--color-bg-alt);
    transition: background-color 0.3s ease;
}

.feature-card:hover {
    background-color: var(--color-border);
}

.feature-icon {
    width: 32px;
    height: 32px;
    margin-bottom: var(--space-lg);
    color: var(--color-accent);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

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

/* ==========================================================================
   Why Section
   ========================================================================== */

.why-section {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
}

.why-section-content {
    max-width: 600px;
}

.why-section-title {
    font-size: var(--font-size-2xl);
    line-height: 1.2;
    margin-bottom: var(--space-xl);
}

.why-section-content p {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.why-section-content p strong {
    color: var(--color-text);
    font-weight: 500;
}

.why-section-content p:last-child {
    margin-bottom: 0;
    margin-top: var(--space-xl);
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text);
}

/* ==========================================================================
   Preview Section
   ========================================================================== */

.preview {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
}

.preview-header {
    margin-bottom: var(--space-3xl);
}

.preview-title {
    font-size: var(--font-size-3xl);
    max-width: 400px;
}

.preview-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

.preview-item {
    position: relative;
    overflow: hidden;
}

.preview-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.preview-item:hover img {
    transform: scale(1.02);
}

.preview-caption {
    position: absolute;
    bottom: var(--space-md);
    left: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    background: rgba(0, 0, 0, 0.7);
    padding: var(--space-xs) var(--space-sm);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */

.faq {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
}

.faq-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-xl);
}

.faq-list {
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.faq-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.faq-question {
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    font-weight: 500;
    color: var(--color-text);
}

.faq-answer {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--color-text-secondary);
}

/* ==========================================================================
   Download Section
   ========================================================================== */

.download {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
}

.download-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-lg);
}

.download-subtitle {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

.app-store-button {
    display: inline-block;
    transition: transform 0.3s ease;
    border-radius: 50px;
    overflow: hidden;
}

.app-store-button:hover {
    transform: scale(1.05);
    opacity: 1;
}

.app-store-button svg {
    width: 150px;
    height: 50px;
}

.download-free {
    margin-top: var(--space-lg);
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-weight: 500;
}

.download-note {
    margin-top: var(--space-sm);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ==========================================================================
   Privacy Page
   ========================================================================== */

.page-header {
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--color-border);
}

.privacy-page {
    padding: var(--space-3xl) 0;
    background-color: var(--color-bg-content);
    min-height: 70vh;
}

.privacy-content {
    max-width: 680px;
}

.privacy-content h1 {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--space-sm);
}

.privacy-updated {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-3xl);
}

.privacy-content section {
    margin-bottom: var(--space-xl);
}

.privacy-content h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-sm);
}

.privacy-content p {
    font-size: var(--font-size-md);
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.privacy-content a {
    color: var(--color-text);
    text-decoration: underline;
}

.privacy-footer {
    margin-top: var(--space-3xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.privacy-footer p {
    margin-bottom: var(--space-md);
}

.back-link {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    padding: var(--space-3xl) 0;
    border-top: 1px solid var(--color-border);
}

.footer .container {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.footer-top {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.footer-brand {
    display: flex;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: var(--space-xl);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-text);
    opacity: 1;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.copyright {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.footer-personal {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.footer-personal .footer-tagline {
    margin-bottom: 0;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Mobile: up to 767px */
@media (max-width: 767px) {
    :root {
        /* Smaller font sizes for mobile */
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.25rem;

        /* Tighter spacing for mobile */
        --space-3xl: 4rem;
        --space-2xl: 3rem;
    }

    /* Tighter container padding */
    .container {
        padding: 0 var(--space-sm);
    }

    /* Smaller hero title */
    .hero-title {
        font-size: var(--font-size-4xl);
        line-height: 0.95;
    }

    /* Reduce hero bottom padding */
    .hero-content {
        padding-bottom: var(--space-2xl);
    }

    /* Smaller tagline */
    .hero-tagline {
        font-size: var(--font-size-base);
    }

    /* Stack CTAs vertically */
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }

    .bracket-btn-primary {
        width: 100%;
        justify-content: center;
    }

    /* Reduce header margins */
    .features-header,
    .preview-header {
        margin-bottom: var(--space-xl);
    }
}

/* Tablet: 768px+ */
@media (min-width: 768px) {
    :root {
        --font-size-5xl: 4rem;
        --font-size-4xl: 3rem;
    }

    .hero-title {
        font-size: var(--font-size-5xl);
    }

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

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

    .footer .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }

    .footer-top {
        flex-direction: row;
        align-items: center;
        gap: var(--space-2xl);
    }

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

/* Desktop: 1024px+ */
@media (min-width: 1024px) {
    :root {
        --font-size-6xl: 5.5rem;
        --font-size-5xl: 4.5rem;
        --font-size-4xl: 3.5rem;
    }

    .hero-title {
        font-size: var(--font-size-6xl);
        max-width: 800px;
    }

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

    .preview-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Large Desktop: 1200px+ */
@media (min-width: 1200px) {
    .container {
        padding: 0 var(--space-2xl);
    }
}

/* ==========================================================================
   Animations
   ========================================================================== */

@media (prefers-reduced-motion: no-preference) {
    .feature-card,
    .preview-item img,
    .app-store-button,
    .bracket-btn {
        transition-duration: 0.3s;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}