/* ============================================
   DROIDSTACK — Modern Redesign
   A dark luxury tech aesthetic
   ============================================ */

/* --- CSS Variables --- */
:root {
    --bg-primary: #040608;
    --bg-secondary: #080b10;
    --bg-elevated: #0c1118;
    --bg-card: rgba(12, 17, 24, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);
    --border-glass: rgba(255, 255, 255, 0.06);
    --border-glass-hover: rgba(255, 255, 255, 0.12);
    --border-subtle: rgba(255, 255, 255, 0.04);

    --primary: #6366f1;
    --primary-rgb: 99, 102, 241;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.25);
    --secondary: #22d3ee;
    --secondary-rgb: 34, 211, 238;
    --accent: #34d399;
    --accent-rgb: 52, 211, 153;
    --amber: #f59e0b;
    --rose: #f43f5e;

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.45);
    --text-dim: rgba(255, 255, 255, 0.25);

    --font-display: 'Syne', sans-serif;
    --font-body: 'Sora', sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;

    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.4);
    --shadow-elevated: 0 32px 80px rgba(0, 0, 0, 0.5);

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-med: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

::selection {
    background: rgba(var(--primary-rgb), 0.3);
    color: white;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

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

.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-med);
}

.navbar.scrolled {
    background: rgba(4, 6, 8, 0.85);
    backdrop-filter: blur(24px) saturate(1.2);
    -webkit-backdrop-filter: blur(24px) saturate(1.2);
    border-bottom: 1px solid var(--border-glass);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
}

.logo-mark {
    color: var(--primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    letter-spacing: -0.01em;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-glass);
}

.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-glass-hover);
}

/* --- Mobile Menu --- */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.menu-toggle:hover {
    background: var(--bg-glass);
}

.menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-med);
    transform-origin: center;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--bg-primary);
}

#heroCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background:
        radial-gradient(ellipse 80% 50% at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 70%),
        radial-gradient(ellipse 60% 40% at 80% 90%, rgba(34, 211, 238, 0.05) 0%, transparent 70%),
        radial-gradient(ellipse 40% 60% at 20% 80%, rgba(99, 102, 241, 0.04) 0%, transparent 60%);
}

.hero-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--primary-rgb), 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: 2;
    transform: translate(-50%, -50%);
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 800px;
    padding: 120px 24px 80px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--secondary);
    padding: 8px 20px;
    border-radius: 100px;
    background: rgba(var(--secondary-rgb), 0.08);
    border: 1px solid rgba(var(--secondary-rgb), 0.15);
    margin-bottom: 32px;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(2.8rem, 8vw, 5.5rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}

.hero-title-line {
    display: block;
}

.hero-title-accent {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    padding-bottom: 4px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 40px;
    line-height: 1.7;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-med);
    border: none;
    outline: none;
    letter-spacing: -0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 20px var(--primary-glow), 0 1px 3px rgba(0,0,0,0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow), 0 2px 6px rgba(0,0,0,0.3);
}

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

.btn-ghost {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-glass);
}

.btn-ghost:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border-glass-hover);
    transform: translateY(-2px);
}

.btn-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    display: inline-block;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.6); }
    50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(var(--accent-rgb), 0); }
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.85rem;
}

/* --- Scroll Indicator --- */
.scroll-indicator {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.scroll-indicator:hover {
    opacity: 0.5;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--text-dim), transparent);
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.5); opacity: 0.3; }
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
    padding: 100px 0;
    position: relative;
}

.section-alt {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 100px;
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid rgba(var(--primary-rgb), 0.15);
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

/* ============================================
   FEATURED APP — AudiAssist
   ============================================ */
.featured-app {
    max-width: 640px;
    margin: 0 auto 80px;
}

.app-card.featured {
    position: relative;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-2xl);
    padding: 48px 40px;
    overflow: hidden;
    transition: all var(--transition-med);
    box-shadow: var(--shadow-card);
}

.app-card.featured:hover {
    border-color: var(--border-glass-hover);
    box-shadow: var(--shadow-elevated);
    transform: translateY(-4px);
}

.featured-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 100px;
    background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.15), rgba(var(--secondary-rgb), 0.15));
    color: var(--accent);
    border: 1px solid rgba(var(--accent-rgb), 0.2);
    margin-bottom: 24px;
}

.featured-content {
    position: relative;
    z-index: 2;
}

.featured-icon-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}

.featured-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    position: relative;
    z-index: 2;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.featured-icon-ring {
    position: absolute;
    inset: -6px;
    border-radius: 26px;
    border: 1px solid rgba(var(--primary-rgb), 0.2);
    z-index: 1;
    animation: ring-pulse 3s ease-in-out infinite;
}

@keyframes ring-pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.05); opacity: 1; }
}

.featured-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}

.featured-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
    max-width: 480px;
}

.featured-desc strong {
    color: var(--text-primary);
}

.featured-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 28px;
}

.ff-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.02);
    transition: background var(--transition-fast);
}

.ff-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.ff-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 4px 12px;
    border-radius: 100px;
    white-space: nowrap;
}

@keyframes badge-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.2); }
    50% { box-shadow: 0 0 0 6px rgba(var(--accent-rgb), 0); }
}

.featured-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* --- Featured Waveform --- */
.featured-waveform {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 240px;
    height: 120px;
    opacity: 0.15;
    pointer-events: none;
}

#waveformCanvas {
    width: 100%;
    height: 100%;
}

/* ============================================
   APPS GRID
   ============================================ */
.grid-label {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: -0.01em;
    margin-bottom: 24px;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.app-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    transition: all var(--transition-med);
    position: relative;
    overflow: hidden;
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(var(--primary-rgb), 0.3), transparent);
    opacity: 0;
    transition: opacity var(--transition-med);
}

.app-card:hover {
    border-color: var(--border-glass-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-elevated);
}

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

.app-icon-wrapper {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.04);
    margin-bottom: 16px;
    transition: all var(--transition-fast);
}

.app-card:hover .app-icon-wrapper {
    background: rgba(var(--primary-rgb), 0.1);
}

.app-icon {
    font-size: 1.6rem;
}

.app-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 8px;
}

.app-desc p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 12px;
}

.app-desc ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 20px;
}

.app-desc li {
    color: var(--text-muted);
    font-size: 0.8rem;
    line-height: 1.6;
}

/* --- Status Indicators --- */
.status {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 5px 14px;
    border-radius: 100px;
}

.status-planning {
    background: rgba(6, 182, 212, 0.12);
    color: #22d3ee;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.status-dev {
    background: rgba(16, 185, 129, 0.12);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.2);
    animation: badge-pulse 2s ease-in-out infinite;
}

.status-idle {
    background: rgba(99, 102, 241, 0.12);
    color: #818cf8;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.status-design {
    background: rgba(245, 158, 11, 0.12);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

/* ============================================
   FEATURES GRID
   ============================================ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    padding: 36px 32px;
    transition: all var(--transition-med);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    border-color: var(--border-glass-hover);
    transform: translateY(-6px);
    box-shadow: var(--shadow-elevated);
}

.feature-icon-bg {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(var(--primary-rgb), 0.08);
    margin-bottom: 20px;
    transition: all var(--transition-fast);
    color: var(--primary);
}

.feature-card:hover .feature-icon-bg {
    background: rgba(var(--primary-rgb), 0.15);
    box-shadow: 0 0 20px rgba(var(--primary-rgb), 0.15);
    transform: scale(1.05);
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 28px;
}

.about-text p strong {
    color: var(--text-primary);
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.about-tags span {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 6px 16px;
    border-radius: 100px;
    background: rgba(var(--primary-rgb), 0.06);
    border: 1px solid rgba(var(--primary-rgb), 0.1);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.about-tags span:hover {
    background: rgba(var(--primary-rgb), 0.12);
    color: var(--text-primary);
    border-color: rgba(var(--primary-rgb), 0.2);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.stat-card {
    text-align: center;
    padding: 32px 16px;
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    transition: all var(--transition-med);
}

.stat-card:hover {
    border-color: var(--border-glass-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 6px;
}

.stat-percent::after {
    content: '%';
}

.stat-infinity {
    font-size: 3.2rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-card {
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
    padding: 48px 40px;
    border-radius: var(--radius-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(20px);
    transition: all var(--transition-med);
}

.contact-card:hover {
    border-color: var(--border-glass-hover);
    box-shadow: var(--shadow-elevated);
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text-primary);
    padding: 14px 24px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.contact-email:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-glass-hover);
    transform: scale(1.02);
}

.contact-email svg {
    color: var(--primary);
    flex-shrink: 0;
}

.copy-tooltip {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.75rem;
    color: var(--accent);
    background: rgba(var(--accent-rgb), 0.1);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    opacity: 0;
    transition: opacity var(--transition-fast);
    pointer-events: none;
    white-space: nowrap;
}

.copy-tooltip.visible {
    opacity: 1;
}

.contact-footer-text {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-top: 36px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    border-top: 1px solid var(--border-glass);
    padding: 60px 0 32px;
    background: var(--bg-secondary);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.footer-logo svg {
    color: var(--primary);
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h5 {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    padding: 4px 0;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid var(--border-subtle);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-dim);
    font-size: 0.82rem;
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Staggered delays for grids */
.apps-grid [data-reveal]:nth-child(1) { transition-delay: 0s; }
.apps-grid [data-reveal]:nth-child(2) { transition-delay: 0.1s; }
.apps-grid [data-reveal]:nth-child(3) { transition-delay: 0.2s; }
.apps-grid [data-reveal]:nth-child(4) { transition-delay: 0.3s; }

.features-grid [data-reveal]:nth-child(1) { transition-delay: 0s; }
.features-grid [data-reveal]:nth-child(2) { transition-delay: 0.1s; }
.features-grid [data-reveal]:nth-child(3) { transition-delay: 0.2s; }
.features-grid [data-reveal]:nth-child(4) { transition-delay: 0.3s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        background: rgba(4, 6, 8, 0.95);
        backdrop-filter: blur(32px);
        -webkit-backdrop-filter: blur(32px);
        border-left: 1px solid var(--border-glass);
        padding: 80px 24px 24px;
        gap: 4px;
        transition: right var(--transition-med);
        z-index: 999;
    }

    .nav-links.open {
        right: 0;
    }

    .nav-link {
        font-size: 1rem;
        padding: 12px 16px;
        width: 100%;
    }

    .menu-toggle {
        display: flex;
        z-index: 1001;
    }

    .section {
        padding: 72px 0;
    }

    .section-header {
        margin-bottom: 48px;
    }

    .featured-app {
        margin-bottom: 56px;
    }

    .app-card.featured {
        padding: 32px 24px;
        border-radius: var(--radius-xl);
    }

    .featured-waveform {
        display: none;
    }

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

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

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .stat-card {
        padding: 24px 12px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-infinity {
        font-size: 2.4rem;
    }

    .hero-content {
        padding: 100px 20px 60px;
    }

    .featured-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .contact-card {
        padding: 32px 24px;
    }

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

@media (max-width: 480px) {
    .section {
        padding: 56px 0;
    }

    .app-card.featured {
        padding: 24px 20px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

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

/* --- Additional micro-animations --- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}