/* ============================================
   TAP & BUILD - Isometric Factory Theme
   Industrial-Cute • Geometric • Playful
   ============================================ */

/* ========== CSS VARIABLES ========== */
:root {
    /* Core Colors */
    --bg-main: #1a1a2e;
    --bg-surface: #16213e;
    --bg-card: #1f2b47;
    --bg-elevated: #253553;
    
    /* Brand Colors */
    --primary: #FF9F1C;
    --primary-light: #FFB84D;
    --primary-dark: #E88A00;
    --secondary: #00D9FF;
    --accent-green: #4ADE80;
    --accent-pink: #F472B6;
    --accent-purple: #A78BFA;
    
    /* Text */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* Legacy variable mappings for compatibility */
    --bg-void: var(--bg-main);
    --bg-deep: var(--bg-surface);
    --accent: var(--primary);
    --accent-light: var(--primary-light);
    --accent-dark: var(--primary-dark);
    --neon-cyan: var(--secondary);
    --neon-purple: var(--accent-purple);
    --text-white: var(--text-primary);
    --text-gray: var(--text-secondary);
    --glass: rgba(255,255,255,0.03);
    --glass-border: rgba(255,255,255,0.08);
    --glow: rgba(255,159,28,0.4);
    
    /* Effects */
    --glow-primary: rgba(255, 159, 28, 0.4);
    --glow-secondary: rgba(0, 217, 255, 0.3);
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hard: 4px 4px 0 rgba(0, 0, 0, 0.2);
    
    /* Isometric */
    --iso-skew: -2deg;
    --iso-perspective: 1000px;
    
    /* Sizing */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 40px;
}

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

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
}

/* ========== ACCESSIBILITY ========== */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: var(--bg-main);
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 700;
    text-decoration: none;
    z-index: 10000;
    transition: top 0.3s;
}
.skip-link:focus { top: 10px; }

a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
    outline: 3px solid var(--secondary);
    outline-offset: 3px;
}

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

/* ========== GEOMETRIC GRID BACKGROUND ========== */
.bg-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

/* Isometric Grid Pattern */
.grid-bg {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(30deg, rgba(255, 159, 28, 0.03) 12%, transparent 12.5%, transparent 87%, rgba(255, 159, 28, 0.03) 87.5%),
        linear-gradient(150deg, rgba(255, 159, 28, 0.03) 12%, transparent 12.5%, transparent 87%, rgba(255, 159, 28, 0.03) 87.5%);
    background-size: 80px 140px;
    /* Static grid - no animation for performance */
}

/* Gradient Orbs */
.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
}
.orb-1 {
    width: 600px; height: 600px;
    background: var(--primary);
    top: -200px; left: -200px;
}
.orb-2 {
    width: 500px; height: 500px;
    background: var(--secondary);
    bottom: -150px; right: -150px;
}
.orb-3 {
    width: 400px; height: 400px;
    background: var(--accent-purple);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.08;
}

/* Floating Sparks Animation - Simplified */
.particles-container {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px; height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.5;
    animation: sparkFloat 12s linear infinite;
}

.particle:nth-child(2) { left: 25%; animation-delay: -3s; background: var(--secondary); }
.particle:nth-child(3) { left: 50%; animation-delay: -6s; }
.particle:nth-child(4) { left: 75%; animation-delay: -9s; background: var(--accent-purple); }
.particle:nth-child(n+5) { display: none; }

@keyframes sparkFloat {
    0% { transform: translateY(100vh); opacity: 0; }
    10% { opacity: 0.5; }
    90% { opacity: 0.3; }
    100% { transform: translateY(-10vh); opacity: 0; }
}

/* ========== NAVIGATION ========== */
nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

nav.scrolled {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(20px);
    padding: 15px 50px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.nav-logo-icon {
    width: 50px; height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    box-shadow: var(--shadow-hard);
    transform: rotate(-3deg);
    transition: transform 0.2s ease;
}

.nav-logo:hover .nav-logo-icon {
    transform: rotate(0deg) scale(1.05);
}

.nav-logo-text {
    font-family: 'Orbitron', monospace;
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    background: linear-gradient(90deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color 0.3s;
}

.nav-links a:not(.nav-cta)::after {
    content: '';
    position: absolute;
    bottom: -6px; left: 0;
    width: 0; height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: width 0.3s;
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:not(.nav-cta):hover::after { width: 100%; }

.nav-cta {
    background: var(--primary);
    padding: 12px 28px;
    border-radius: var(--radius-xl);
    color: var(--bg-main) !important;
    font-weight: 700;
    box-shadow: var(--shadow-hard), 0 0 20px var(--glow-primary);
    transition: all 0.3s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.2), 0 0 30px var(--glow-primary);
}

/* Language Selector */
.lang-selector {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-card);
    border: 2px solid var(--bg-elevated);
    border-radius: var(--radius-lg);
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
    transition: all 0.3s;
    user-select: none;
}
.lang-selector:hover { border-color: var(--primary); }
.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--bg-card);
    border: 2px solid var(--bg-elevated);
    border-radius: var(--radius-md);
    padding: 8px 0;
    min-width: 150px;
    box-shadow: var(--shadow-soft);
    z-index: 1001;
}
.lang-selector.active .lang-dropdown { display: block; }
.lang-dropdown a {
    display: block;
    padding: 10px 18px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
}
.lang-dropdown a:hover {
    background: var(--bg-elevated);
    color: var(--primary);
}

/* Mobile Navigation */
.nav-mobile-right { display: none; align-items: center; gap: 10px; }
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    background: transparent;
    border: none;
}
.menu-toggle span {
    width: 26px; height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s;
}
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

@media (max-width: 900px) {
    nav { padding: 15px 20px; }
    nav.scrolled { padding: 12px 20px; }
    .nav-links { display: none !important; }
    .nav-links.active {
        display: flex !important;
        position: fixed;
        inset: 0;
        background: var(--bg-main);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 25px;
        z-index: 9999;
    }
    .nav-links.active a { font-size: 1.3rem; padding: 15px 30px; color: white; }
    .nav-links.active .nav-cta { margin-top: 20px; }
    .nav-links .lang-selector { display: none !important; }
    .nav-mobile-right { display: flex !important; }
    .nav-mobile-right .lang-selector { padding: 6px 12px; font-size: 0.8rem; }
    .menu-toggle { display: flex !important; z-index: 10000; }
}

/* ========== HERO SECTION ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 50px 100px;
    position: relative;
    z-index: 10;
}

.hero-grid {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content { position: relative; z-index: 10; }

/* Floating Elements */
.floating-elements {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 5;
    overflow: hidden;
}

.float-item {
    position: absolute;
    font-size: 2rem;
    opacity: 0.7;
    filter: drop-shadow(3px 3px 0 rgba(0,0,0,0.3));
    animation: floatItem 4s ease-in-out infinite;
}

.float-item:nth-child(1) { top: 10%; left: 5%; animation-delay: 0s; font-size: 2.5rem; }
.float-item:nth-child(2) { top: 20%; right: 8%; animation-delay: -1s; font-size: 1.7rem; }
.float-item:nth-child(3) { bottom: 25%; left: 3%; animation-delay: -2s; font-size: 2rem; }
.float-item:nth-child(4) { top: 55%; right: 5%; animation-delay: -0.5s; font-size: 2.2rem; }
.float-item:nth-child(5) { bottom: 10%; right: 12%; animation-delay: -1.5s; font-size: 1.6rem; }
.float-item:nth-child(6) { top: 35%; left: 2%; animation-delay: -2.5s; font-size: 1.9rem; }

@keyframes floatItem {
    0%, 100% { transform: translateY(0) rotate(-5deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

@media (max-width: 768px) {
    .floating-elements { display: none; }
}

/* Isometric Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-card);
    border: 2px solid var(--primary);
    padding: 10px 22px;
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 30px;
    box-shadow: var(--shadow-hard);
    transform: skewX(var(--iso-skew));
}

@keyframes badgeFloat {
    0%, 100% { transform: skewX(var(--iso-skew)) translateY(0); }
    50% { transform: skewX(var(--iso-skew)) translateY(-5px); }
}

/* Isometric Title */
.hero-title {
    font-family: 'Orbitron', monospace;
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: 25px;
}

.hero-title .line {
    display: block;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 50%, var(--primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transform: skewX(var(--iso-skew));
    opacity: 0;
    animation: titleSlideIn 0.6s ease forwards;
}

.hero-title .line:nth-child(1) { animation-delay: 0.1s; }
.hero-title .line:nth-child(2) { animation-delay: 0.25s; }

@keyframes titleSlideIn {
    from { opacity: 0; transform: skewX(var(--iso-skew)) translateX(-50px); }
    to { opacity: 1; transform: skewX(var(--iso-skew)) translateX(0); }
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
    max-width: 500px;
    animation: fadeIn 0.6s ease 0.4s forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* Isometric Buttons */
.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeIn 0.6s ease 0.5s forwards;
    opacity: 0;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 36px;
    border-radius: var(--radius-lg);
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    position: relative;
    transition: all 0.3s ease;
    transform: skewX(var(--iso-skew));
}

.btn-hero:hover {
    transform: skewX(var(--iso-skew)) translateY(-4px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--bg-main);
    box-shadow: 4px 4px 0 var(--primary-dark), 0 0 20px var(--glow-primary);
}

.btn-primary:hover {
    box-shadow: 6px 6px 0 var(--primary-dark), 0 0 30px var(--glow-primary);
}

.btn-outline {
    background: var(--bg-card);
    border: 2px solid var(--secondary);
    color: var(--secondary);
    box-shadow: 4px 4px 0 rgba(0, 217, 255, 0.2);
}

.btn-outline:hover {
    background: rgba(0, 217, 255, 0.1);
    box-shadow: 6px 6px 0 rgba(0, 217, 255, 0.3);
}

.btn-demo {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    box-shadow: 4px 4px 0 #047857, 0 0 20px rgba(16, 185, 129, 0.3);
}

.btn-demo:hover {
    box-shadow: 6px 6px 0 #047857, 0 0 30px rgba(16, 185, 129, 0.5);
}

/* Conveyor Belt Stats */
.hero-stats {
    display: flex;
    gap: 40px;
    margin-top: 60px;
    padding: 25px 0;
    border-top: 3px solid var(--bg-elevated);
    border-bottom: 3px solid var(--bg-elevated);
    position: relative;
    animation: fadeIn 0.6s ease 0.6s forwards;
    opacity: 0;
}

.stat {
    text-align: center;
    position: relative;
    z-index: 1;
    background: var(--bg-main);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    transition: transform 0.2s ease;
}

.stat:hover {
    transform: translateY(-3px);
}

.stat::after { display: none; }

.stat-value {
    font-family: 'Orbitron', monospace;
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    text-shadow: 2px 2px 0 var(--primary-dark);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-top: 8px;
}

/* ========== 3D PHONE SHOWCASE ========== */
.hero-showcase {
    perspective: var(--iso-perspective);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    margin: 0 auto;
}

.phone-scene {
    position: relative;
    transform-style: preserve-3d;
    transform: rotateY(-8deg) rotateX(5deg);
    animation: phoneFloat 4s ease-in-out infinite;
}

@keyframes phoneFloat {
    0%, 100% { transform: rotateY(-8deg) rotateX(5deg) translateY(0); }
    50% { transform: rotateY(-8deg) rotateX(5deg) translateY(-10px); }
}

.phone-glow {
    position: absolute;
    width: 300px; height: 300px;
    background: radial-gradient(circle, var(--glow-primary) 0%, transparent 60%);
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
    opacity: 0.4;
}

.phone-device {
    width: 320px;
    height: 660px;
    background: linear-gradient(145deg, #2d3a5a, #1a2440);
    border-radius: 45px;
    padding: 12px;
    box-shadow: 
        20px 20px 0 rgba(0, 0, 0, 0.15),
        0 0 80px var(--glow-primary),
        inset 0 2px 10px rgba(255, 255, 255, 0.05);
    position: relative;
}

.phone-device::before {
    content: '';
    position: absolute;
    top: 20px; left: 50%;
    transform: translateX(-50%);
    width: 120px; height: 26px;
    background: #0a0a15;
    border-radius: 15px;
}

.phone-device::after {
    content: '';
    position: absolute;
    top: 28px; left: 50%;
    transform: translateX(-50%);
    width: 10px; height: 10px;
    background: #1a1a2e;
    border-radius: 50%;
    box-shadow: inset 0 0 3px rgba(0,217,255,0.5);
}

.phone-screen {
    width: 100%; height: 100%;
    background: var(--bg-main);
    border-radius: 36px;
    overflow: hidden;
    position: relative;
}

.phone-screen img {
    width: 100%; height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0; left: 0;
    opacity: 0;
    transition: opacity 0.6s ease;
}

.phone-screen img.active { opacity: 1; }

.phone-reflection {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.06), transparent);
    border-radius: 36px 36px 0 0;
    pointer-events: none;
}

@media (max-width: 768px) {
    .phone-scene { animation: none; transform: none; }
    .phone-glow { display: none; }
}

/* ========== FEATURES SECTION ========== */
.features {
    padding: 120px 50px;
    position: relative;
    z-index: 10;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-tag {
    display: inline-block;
    font-family: 'Orbitron', monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--secondary);
    margin-bottom: 15px;
    padding: 8px 20px;
    background: var(--bg-card);
    border: 2px solid var(--secondary);
    border-radius: var(--radius-lg);
    transform: skewX(var(--iso-skew));
}

.section-title {
    font-family: 'Orbitron', monospace;
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
}

/* Isometric Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    max-width: 1300px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    border: 2px solid var(--bg-elevated);
    border-radius: var(--radius-lg);
    padding: 35px 30px;
    position: relative;
    transform: skewX(var(--iso-skew));
    transition: transform 0.3s ease, border-color 0.3s ease;
    box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.15);
}

/* Remove staggered animation for performance */

.feature-card::before, .feature-card::after { display: none; }

.feature-card:hover {
    transform: skewX(var(--iso-skew)) translateY(-8px);
    border-color: var(--primary);
}

.feature-icon {
    width: 65px; height: 65px;
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-surface));
    border: 2px solid var(--primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 20px;
    transform: skewX(calc(var(--iso-skew) * -1)) rotate(-3deg);
    box-shadow: 3px 3px 0 var(--primary-dark);
    transition: transform 0.2s ease;
}

.feature-card:hover .feature-icon {
    transform: skewX(calc(var(--iso-skew) * -1)) rotate(0deg) scale(1.05);
}

.feature-title {
    font-family: 'Orbitron', monospace;
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-light);
    transform: skewX(calc(var(--iso-skew) * -1));
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
    transform: skewX(calc(var(--iso-skew) * -1));
}

/* ========== CTA / ALPHA SECTION ========== */
.cta-section {
    padding: 120px 50px;
    position: relative;
    z-index: 10;
}

.cta-box {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 3px solid var(--primary);
    border-radius: var(--radius-lg);
    padding: 80px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transform: skewX(var(--iso-skew));
    box-shadow: 8px 8px 0 rgba(255, 159, 28, 0.2);
}

.cta-box::before, .cta-box::after { display: none; }

.cta-box > * {
    transform: skewX(calc(var(--iso-skew) * -1));
}

.alpha-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    border-radius: var(--radius-xl);
    padding: 10px 22px;
    font-family: 'Orbitron', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--bg-main);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 25px;
    box-shadow: 3px 3px 0 var(--primary-dark);
}

.cta-title {
    font-family: 'Orbitron', monospace;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.cta-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 35px;
}

/* Form */
.alpha-form {
    max-width: 450px;
    margin: 0 auto;
}

.form-row {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
}

.form-input {
    flex: 1;
    background: var(--bg-surface);
    border: 2px solid var(--bg-elevated);
    border-radius: var(--radius-lg);
    padding: 16px 22px;
    font-size: 1rem;
    color: var(--text-primary);
    font-family: inherit;
    transition: all 0.3s;
}

.form-input::placeholder { color: var(--text-muted); }
.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--glow-primary);
}
.form-input.error {
    border-color: #ff4757;
}

.form-submit {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--radius-lg);
    padding: 16px 28px;
    font-family: 'Orbitron', monospace;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--bg-main);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 3px 3px 0 var(--primary-dark);
    white-space: nowrap;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 4px 4px 0 var(--primary-dark);
}

.form-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.form-helper {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.form-helper strong { color: var(--primary); }

.form-error {
    color: #ff4757;
    font-size: 0.85rem;
    display: none;
    margin-top: 8px;
}
.form-error.visible { display: block; }

.form-success {
    display: none;
    padding: 30px;
}
.form-success.visible { display: block; }
.form-success-icon { font-size: 3.5rem; margin-bottom: 15px; }
.form-success-title {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}
.form-success-text { color: var(--text-secondary); }

/* ========== FAQ SECTION ========== */
.faq {
    padding: 100px 50px 120px;
    position: relative;
    z-index: 10;
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 2px solid var(--bg-elevated);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
    transition: all 0.3s;
    transform: skewX(var(--iso-skew));
    box-shadow: 4px 4px 0 rgba(0, 0, 0, 0.1);
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-item[open] {
    border-color: var(--primary);
    box-shadow: 6px 6px 0 rgba(255, 159, 28, 0.15);
}

.faq-item summary {
    padding: 22px 28px;
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s;
    transform: skewX(calc(var(--iso-skew) * -1));
}

.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 700;
    transition: transform 0.3s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item summary:hover { color: var(--primary); }

.faq-item[open] summary {
    color: var(--primary);
    background: rgba(255, 159, 28, 0.05);
}

.faq-item p {
    padding: 0 28px 22px;
    color: var(--text-secondary);
    line-height: 1.7;
    transform: skewX(calc(var(--iso-skew) * -1));
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: skewX(calc(var(--iso-skew) * -1)) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: skewX(calc(var(--iso-skew) * -1)) translateY(0);
    }
}

/* ========== FOOTER ========== */
footer {
    padding: 70px 50px 35px;
    border-top: 2px dashed var(--bg-elevated);
    position: relative;
    z-index: 10;
}

.footer-grid {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand .footer-brand-title {
    font-family: 'Orbitron', monospace;
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 700;
}

.footer-brand p {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-heading {
    font-family: 'Orbitron', monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 18px;
    color: var(--text-primary);
    font-weight: 700;
}

.footer-column a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 10px;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.footer-column a:hover { 
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 35px;
    border-top: 2px dashed var(--bg-elevated);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ========== REVEAL ANIMATIONS ========== */
.reveal {
    opacity: 0;
    transform: translateY(40px) skewX(var(--iso-skew));
    transition: all 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0) skewX(var(--iso-skew));
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1200px) {
    .hero-grid { grid-template-columns: 1fr; gap: 60px; text-align: center; }
    .hero { padding: 120px 40px 80px; }
    .hero-subtitle { margin: 0 auto 40px; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; }
}

@media (max-width: 768px) {
    :root { --iso-skew: 0deg; }
    
    .hero { padding: 100px 20px 60px; min-height: auto; }
    .hero-title { font-size: 2.5rem; }
    .hero-subtitle { font-size: 1.05rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .btn-hero { width: 100%; max-width: 280px; justify-content: center; }
    .hero-stats { flex-wrap: wrap; gap: 25px; }
    .hero-stats::before { display: none; }
    .stat-value { font-size: 2.2rem; }
    
    .phone-device { width: 240px; height: 500px; border-radius: 35px; }
    .phone-device::before, .phone-device::after { display: none; }
    .phone-screen { border-radius: 28px; }
    
    .features { padding: 70px 20px; }
    .features-grid { grid-template-columns: 1fr; }
    .feature-card { padding: 28px 24px; }
    
    .section-header { margin-bottom: 50px; }
    .section-title { font-size: 1.8rem; }
    .section-tag { font-size: 0.75rem; }
    
    .cta-section { padding: 70px 20px; }
    .cta-box { padding: 50px 25px; }
    .cta-title { font-size: 1.6rem; }
    .form-row { flex-direction: column; }
    .form-submit { width: 100%; }
    
    .faq { padding: 70px 20px 90px; }
    .faq-item summary { font-size: 0.95rem; padding: 18px 20px; }
    .faq-item p { padding: 0 20px 18px; }
    
    footer { padding: 50px 20px 25px; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; gap: 35px; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .hero-badge { font-size: 0.8rem; padding: 8px 16px; }
    .stat-value { font-size: 1.8rem; }
    .phone-device { width: 200px; height: 420px; }
    .section-title { font-size: 1.5rem; }
    .cta-title { font-size: 1.4rem; }
    .feature-icon { width: 55px; height: 55px; font-size: 1.5rem; }
    .feature-title { font-size: 1.05rem; }
}

@media (max-width: 360px) {
    .hero-title { font-size: 1.7rem; }
    .btn-hero { padding: 15px 28px; font-size: 0.9rem; }
    .phone-device { width: 180px; height: 380px; }
}

/* Landscape mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .hero { min-height: auto; padding: 80px 30px 40px; }
    .hero-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .hero-showcase { display: none; }
}