/* ============================================
   MWQ.IO — Premium Domain Landing Page
   Modern CSS with Custom Properties & Animations
   ============================================ */

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

:root {
    /* Color System — HSL based for flexibility */
    --hue-primary: 250;
    --hue-accent: 190;
    
    --clr-bg: hsl(230, 25%, 6%);
    --clr-bg-elevated: hsl(230, 20%, 10%);
    --clr-bg-card: hsl(230, 18%, 12%);
    --clr-bg-card-hover: hsl(230, 18%, 15%);
    
    --clr-surface: hsl(230, 15%, 16%);
    --clr-border: hsl(230, 15%, 18%);
    --clr-border-subtle: hsl(230, 12%, 14%);
    
    --clr-text: hsl(220, 20%, 95%);
    --clr-text-secondary: hsl(220, 15%, 65%);
    --clr-text-muted: hsl(220, 10%, 45%);
    
    --clr-primary: hsl(var(--hue-primary), 90%, 68%);
    --clr-primary-dim: hsl(var(--hue-primary), 60%, 50%);
    --clr-primary-glow: hsla(var(--hue-primary), 90%, 68%, 0.25);
    
    --clr-accent: hsl(var(--hue-accent), 90%, 60%);
    --clr-accent-dim: hsl(var(--hue-accent), 60%, 40%);
    
    --gradient-primary: linear-gradient(135deg, hsl(var(--hue-primary), 90%, 68%), hsl(var(--hue-accent), 90%, 60%));
    --gradient-hero: radial-gradient(ellipse 80% 50% at 50% -20%, hsla(var(--hue-primary), 80%, 50%, 0.3), transparent);
    --gradient-card: linear-gradient(160deg, hsla(var(--hue-primary), 30%, 30%, 0.15), hsla(var(--hue-accent), 30%, 20%, 0.05));
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
    
    /* Layout */
    --container-max: 1200px;
    --nav-height: 72px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

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

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* --- Canvas Background --- */
#particle-canvas {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.5;
}

/* --- Container --- */
.container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-xl);
}

/* --- Navigation --- */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: hsla(230, 25%, 6%, 0.7);
    border-bottom: 1px solid var(--clr-border-subtle);
    transition: background var(--duration-normal) var(--ease-out-expo),
                box-shadow var(--duration-normal) var(--ease-out-expo);
}

#main-nav.scrolled {
    background: hsla(230, 25%, 6%, 0.92);
    box-shadow: 0 4px 30px hsla(0, 0%, 0%, 0.3);
}

.nav-inner {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-xl);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0;
}

.logo-text {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--clr-text);
    letter-spacing: -0.02em;
}

.logo-dot {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    padding: 0.6rem 1.4rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--clr-bg);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: transform var(--duration-normal) var(--ease-spring),
                box-shadow var(--duration-normal) var(--ease-out-expo);
}

.nav-cta:hover {
    transform: translateY(-1px) scale(1.03);
    box-shadow: 0 8px 30px var(--clr-primary-glow);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--duration-normal) var(--ease-spring);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    color: var(--clr-bg);
    background: var(--gradient-primary);
    box-shadow: 0 4px 20px var(--clr-primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 8px 40px var(--clr-primary-glow), 0 0 60px hsla(var(--hue-primary), 90%, 68%, 0.15);
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-ghost {
    color: var(--clr-text-secondary);
    background: hsla(230, 15%, 50%, 0.1);
    border: 1px solid var(--clr-border);
}

.btn-ghost:hover {
    color: var(--clr-text);
    background: hsla(230, 15%, 50%, 0.18);
    border-color: var(--clr-text-muted);
    transform: translateY(-2px);
}

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

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--nav-height) + var(--space-3xl)) var(--space-xl) var(--space-4xl);
    z-index: 1;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    width: 700px;
    height: 700px;
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle, hsla(var(--hue-primary), 80%, 50%, 0.15), hsla(var(--hue-accent), 70%, 40%, 0.08), transparent 70%);
    pointer-events: none;
    animation: glowPulse 8s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.6; transform: translateX(-50%) scale(1); }
    50% { opacity: 1; transform: translateX(-50%) scale(1.15); }
}

.hero-content {
    text-align: center;
    max-width: 800px;
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s var(--ease-out-expo) both;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 1.2rem 0.45rem 0.8rem;
    background: hsla(var(--hue-primary), 40%, 30%, 0.2);
    border: 1px solid hsla(var(--hue-primary), 60%, 50%, 0.25);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-xl);
    animation: fadeInUp 1s var(--ease-out-expo) 0.15s both;
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--clr-accent);
    animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 hsla(var(--hue-accent), 90%, 60%, 0.6); }
    50% { opacity: 0.7; box-shadow: 0 0 0 6px hsla(var(--hue-accent), 90%, 60%, 0); }
}

.hero-title {
    margin-bottom: var(--space-lg);
    animation: fadeInUp 1s var(--ease-out-expo) 0.3s both;
}

.title-domain {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

.char {
    display: inline-block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: charReveal 0.6s var(--ease-out-expo) calc(0.5s + var(--i) * 0.08s) both;
}

.char.dot {
    -webkit-text-fill-color: var(--clr-text-muted);
    background: none;
}

@keyframes charReveal {
    from {
        opacity: 0;
        transform: translateY(40px) rotateX(30deg);
        filter: blur(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0) rotateX(0);
        filter: blur(0);
    }
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2.2vw, 1.25rem);
    color: var(--clr-text-secondary);
    line-height: 1.7;
    max-width: 580px;
    margin-inline: auto;
    margin-bottom: var(--space-2xl);
    animation: fadeInUp 1s var(--ease-out-expo) 0.55s both;
}

.hero-subtitle strong {
    color: var(--clr-text);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 1s var(--ease-out-expo) 0.7s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
    animation: fadeInUp 1s var(--ease-out-expo) 0.85s both;
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-mono);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--clr-text);
    line-height: 1.2;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 0.25rem;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--clr-border);
}

/* --- Section Shared Styles --- */
.section {
    position: relative;
    z-index: 1;
    padding-block: var(--space-5xl);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin-inline: auto;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--clr-primary);
    margin-bottom: var(--space-md);
    padding: 0.3rem 1rem;
    background: hsla(var(--hue-primary), 40%, 30%, 0.15);
    border: 1px solid hsla(var(--hue-primary), 60%, 50%, 0.2);
    border-radius: var(--radius-full);
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

.section-title em {
    font-style: normal;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--clr-text-secondary);
    line-height: 1.7;
}

/* --- Features Grid --- */
.features {
    background: var(--gradient-hero);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    position: relative;
    padding: var(--space-2xl);
    background: var(--gradient-card);
    border: 1px solid var(--clr-border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--duration-normal) var(--ease-out-expo);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(160deg, hsla(var(--hue-primary), 60%, 60%, 0.08), transparent 50%);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out-expo);
}

.feature-card:hover {
    border-color: hsla(var(--hue-primary), 50%, 50%, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px hsla(0, 0%, 0%, 0.3), 0 0 40px hsla(var(--hue-primary), 80%, 50%, 0.05);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: hsla(var(--hue-primary), 50%, 50%, 0.1);
    border: 1px solid hsla(var(--hue-primary), 50%, 50%, 0.15);
    color: var(--clr-primary);
    margin-bottom: var(--space-lg);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.feature-card:hover .feature-icon {
    background: hsla(var(--hue-primary), 60%, 50%, 0.2);
    border-color: hsla(var(--hue-primary), 60%, 60%, 0.3);
    transform: scale(1.08);
}

.feature-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.feature-desc {
    font-size: 0.92rem;
    color: var(--clr-text-secondary);
    line-height: 1.65;
}

/* --- Stats Banner --- */
.stats-banner {
    padding-block: var(--space-3xl);
    background: var(--clr-bg-elevated);
    border-top: 1px solid var(--clr-border-subtle);
    border-bottom: 1px solid var(--clr-border-subtle);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-2xl);
    text-align: center;
}

.stats-item {
    padding: var(--space-lg);
}

.stats-number {
    display: block;
    font-family: var(--font-mono);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
}

.stats-text {
    font-size: 0.9rem;
    color: var(--clr-text-muted);
    line-height: 1.5;
}

/* --- Use Cases --- */
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.usecase-card {
    padding: var(--space-xl);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--duration-normal) var(--ease-out-expo);
    cursor: default;
}

.usecase-card:hover {
    background: var(--clr-bg-card-hover);
    border-color: var(--clr-border);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px hsla(0, 0%, 0%, 0.25);
}

.usecase-emoji {
    display: block;
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.usecase-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
}

.usecase-card p {
    font-size: 0.88rem;
    color: var(--clr-text-secondary);
    line-height: 1.6;
}

/* --- Contact Section --- */
.contact {
    background: var(--gradient-hero);
}

.contact-centered {
    text-align: center;
    max-width: 640px;
    margin-inline: auto;
}

.contact-icon-wrap {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: var(--radius-lg);
    background: hsla(var(--hue-primary), 50%, 50%, 0.1);
    border: 1px solid hsla(var(--hue-primary), 50%, 50%, 0.15);
    color: var(--clr-primary);
    margin-bottom: var(--space-xl);
    transition: all var(--duration-normal) var(--ease-out-expo);
}

.contact-centered .section-tag {
    margin-bottom: var(--space-lg);
}

.contact-centered .section-desc {
    margin-bottom: var(--space-2xl);
}

/* Email Canvas Display */
.email-display {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--space-xl) var(--space-2xl);
    background: var(--clr-bg-card);
    border: 1px solid var(--clr-border-subtle);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-xl);
    position: relative;
    overflow: hidden;
    transition: border-color var(--duration-normal) var(--ease-out-expo),
                box-shadow var(--duration-normal) var(--ease-out-expo);
}

.email-display::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, hsla(var(--hue-primary), 60%, 60%, 0.05), hsla(var(--hue-accent), 60%, 60%, 0.03));
    pointer-events: none;
}

.email-display:hover {
    border-color: hsla(var(--hue-primary), 50%, 50%, 0.3);
    box-shadow: 0 8px 40px hsla(var(--hue-primary), 80%, 50%, 0.08);
}

#email-canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

.contact-note {
    font-size: 0.85rem;
    color: var(--clr-text-muted);
    line-height: 1.6;
}

/* --- Footer --- */
.footer {
    position: relative;
    z-index: 1;
    padding-block: var(--space-2xl);
    border-top: 1px solid var(--clr-border-subtle);
}

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

.footer-logo {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--clr-text);
}

.footer-copy {
    font-size: 0.82rem;
    color: var(--clr-text-muted);
}

/* --- Intersection Observer Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out-expo), transform 0.7s var(--ease-out-expo);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered reveal for grid children */
.reveal-stagger > * {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}

.reveal-stagger.visible > * {
    opacity: 1;
    transform: translateY(0);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.15s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.2s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.25s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 900px) {
    .hero-stats {
        gap: var(--space-lg);
    }
}

@media (max-width: 640px) {
    :root {
        --space-5xl: 4rem;
    }
    
    .container {
        padding-inline: var(--space-md);
    }
    
    .nav-inner {
        padding-inline: var(--space-md);
    }
    
    .hero {
        padding-top: calc(var(--nav-height) + var(--space-xl));
        padding-bottom: var(--space-2xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

/* --- Selection --- */
::selection {
    background: hsla(var(--hue-primary), 80%, 60%, 0.3);
    color: var(--clr-text);
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--clr-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--clr-surface);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--clr-text-muted);
}