/* ===================================
   CSS VARIABLES - DARK MODE
   =================================== */
   :root {
    /* Colors */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #141414;
    --bg-hover: #1a1a1a;
    
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-tertiary: #737373;
    
    --border-primary: #262626;
    --border-secondary: #1a1a1a;
    
    --accent-primary: #0095f6;
    --accent-hover: #1877f2;
    
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #ec4899 100%);
    --gradient-2: linear-gradient(135deg, #8b5cf6 0%, #3b82f6 100%);
    
    /* Typography */
    --font-display: 'Syne', sans-serif;
    --font-body: 'Archivo', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --bg: #000000;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ===================================
   LANDING CONTAINER
   =================================== */
.landing-container {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

/* Background grain effect */
.landing-container::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 1;
}

/* ===================================
   NAVIGATION
   =================================== */
.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    position: relative;
    z-index: 10;
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 28px;
    background: rgba(15, 23, 42, 0.72);
    backdrop-filter: blur(24px);
    box-shadow: 0 24px 60px rgba(0,0,0,0.18);
    animation: slideDown 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo-icon {
    font-size: 1.25rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
    min-height: calc(100vh - 100px);
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s backwards;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
}

.title-line {
    display: block;
}

.title-accent {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

/* ===================================
   HERO VISUAL GRID
   =================================== */
.hero-visual {
    position: relative;
    animation: fadeInRight 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.4s backwards;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    perspective: 1000px;
}

.grid-item {
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    transition: transform var(--transition-base);
}

.grid-item:hover {
    transform: translateY(-4px) scale(1.02);
}

.grid-item-1 {
    animation: floatUp 6s ease-in-out infinite;
}

.grid-item-2 {
    animation: floatUp 6s ease-in-out infinite 1s;
}

.grid-item-3 {
    animation: floatUp 6s ease-in-out infinite 2s;
}

.grid-item-4 {
    animation: floatUp 6s ease-in-out infinite 3s;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===================================
   BUTTONS
   =================================== */
.btn-primary,
.btn-secondary,
.btn-hero,
.btn-ghost {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-primary);
}

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

.btn-hero {
    padding: 1rem 2rem;
    font-size: 1rem;
    background: var(--text-primary);
    color: var(--bg-primary);
    font-weight: 700;
}

.btn-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

.btn-ghost {
    color: var(--text-secondary);
    padding: 0.75rem 0;
    font-weight: 500;
}

.btn-ghost:hover {
    color: var(--text-primary);
}

/* ===================================
   FEATURES SECTION
   =================================== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    position: relative;
    z-index: 2;
}

.feature-card {
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: var(--bg-tertiary);
    transform: translateY(-4px);
    border-color: var(--border-secondary);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.01em;
}

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

/* ===================================
   FOOTER
   =================================== */
.footer {
    padding: var(--spacing-xl);
    border-top: 1px solid var(--border-primary);
    margin-top: var(--spacing-2xl);
    position: relative;
    z-index: 2;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 800;
}

.footer-text {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* ===================================
   ANIMATIONS
   =================================== */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes floatUp {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }
}

@media (max-width: 640px) {
    .nav {
        padding: var(--spacing-md);
    }
    
    .nav-logo {
        font-size: 1.25rem;
    }
    
    .nav-actions {
        gap: var(--spacing-xs);
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 0.625rem 1rem;
        font-size: 0.875rem;
    }
    
    .hero {
        padding: var(--spacing-lg) var(--spacing-md);
        min-height: auto;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .btn-hero {
        width: 100%;
        justify-content: center;
    }
    
    .features {
        padding: var(--spacing-xl) var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .footer {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}
/* ===================================
   LIGHT MODE — debugbullshit3 palette
   Pastel gradient + frosted glass
   =================================== */
html.light {
    --bg-primary: #ede0ff;
    --bg-secondary: rgba(255,255,255,0.45);
    --bg-tertiary: rgba(255,255,255,0.3);
    --bg-hover: rgba(255,255,255,0.62);
    --text-primary: #1a1a2e;
    --text-secondary: rgba(26,26,46,0.65);
    --text-tertiary: rgba(26,26,46,0.42);
    --border-primary: rgba(26,26,46,0.15);
    --border-secondary: rgba(26,26,46,0.08);
    --accent-primary: #0077cc;
    --accent-hover: #005fa3;
}

html.light body {
    background: linear-gradient(155deg, #e8d5ff 0%, #c7e8ff 50%, #d4f5e9 100%);
    background-attachment: fixed;
}

html.light .nav {
    background: rgba(255,255,255,0.42);
    border-color: rgba(255,255,255,0.65);
    box-shadow: 0 24px 60px rgba(0,0,0,0.08);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
}

html.light .feature-card {
    background: rgba(255,255,255,0.45);
    border-color: rgba(26,26,46,0.1);
}

html.light .feature-icon {
    background: rgba(255,255,255,0.6);
    border-color: rgba(26,26,46,0.1);
}

html.light .btn-hero {
    background: #1a1a2e;
    color: #ffffff;
}

html.light .btn-hero:hover {
    box-shadow: 0 10px 30px rgba(26,26,46,0.2);
}

/* Smooth theme transition — active only while switching */
html.theme-fx *, html.theme-fx *::before, html.theme-fx *::after {
    transition: background-color 0.35s ease, color 0.25s ease,
                border-color 0.25s ease, fill 0.25s ease,
                stroke 0.25s ease !important;
}