/* ============================================
   GIGA.MOBILE — Design System
   Aesthetic: Dark brutalist tech with neon accents
   Fonts: Clash Display + Space Mono
   ============================================ */

:root {
    /* Colors — Deep dark with electric lime accent */
    --bg-deep: #0a0a0b;
    --bg-surface: #111113;
    --bg-elevated: #18181b;
    --bg-hover: #1f1f23;
    
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    
    --accent: #c8ff00;
    --accent-dim: #a3cc00;
    --accent-glow: rgba(200, 255, 0, 0.15);
    
    --border: #27272a;
    --border-accent: #3f3f46;
    
    /* Typography */
    --font-display: 'Clash Display', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-2xl: 8rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ============================================
   Reset & Base
   ============================================ */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-deep);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background: var(--accent);
    color: var(--bg-deep);
}

/* ============================================
   Background Effects
   ============================================ */

.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(200, 255, 0, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(200, 255, 0, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #00ffc8 0%, transparent 70%);
    bottom: 20%;
    left: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, #ff00c8 0%, transparent 70%);
    bottom: -100px;
    right: 20%;
    animation-delay: -14s;
    opacity: 0.2;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ============================================
   Navigation
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    animation: slideDown 0.6s ease;
}

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

.nav-brand {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.brand-giga { color: var(--text-primary); }
.brand-dot { color: var(--accent); }
.brand-mobile { color: var(--text-secondary); }

.nav-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

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

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-2xl) var(--space-lg);
    padding-top: calc(var(--space-2xl) + 60px);
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    animation: fadeUp 0.8s ease 0.2s both;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    color: var(--accent);
}

.label-bracket {
    opacity: 0.5;
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(3rem, 12vw, 8rem);
    line-height: 0.9;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.title-line {
    display: block;
}

.highlight {
    color: var(--accent);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0.1em;
    width: 100%;
    height: 0.15em;
    background: var(--accent);
    opacity: 0.3;
    transform: skewX(-12deg);
}

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

.hero-stats {
    display: flex;
    gap: var(--space-xl);
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
    animation: fadeUp 0.8s ease 0.6s both;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.stat-value {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 2.5rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.625rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* ============================================
   Sections
   ============================================ */

.section {
    position: relative;
    padding: var(--space-2xl) var(--space-lg);
    z-index: 1;
}

.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    max-width: 1200px;
    margin: 0 auto;
    align-items: start;
}

.section-grid-reverse {
    direction: rtl;
}

.section-grid-reverse > * {
    direction: ltr;
}

.section-info {
    position: sticky;
    top: 100px;
}

.section-number {
    display: inline-block;
    font-family: var(--font-display);
    font-weight: 200;
    font-size: 5rem;
    line-height: 1;
    color: var(--border-accent);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: clamp(2rem, 5vw, 3.5rem);
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
}

.section-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.feature-icon {
    color: var(--accent);
    font-weight: 700;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-sm);
}

.service-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.service-icon {
    color: var(--accent);
    font-size: 0.5rem;
}

/* ============================================
   Forms
   ============================================ */

.form {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    padding: var(--space-xl);
    transition: border-color var(--transition-base);
}

.form:hover {
    border-color: var(--border-accent);
}

.form-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border);
}

.form-tag {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--accent);
    letter-spacing: 0.05em;
}

.form-frequency {
    font-size: 0.625rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    padding: var(--space-xs) var(--space-sm);
    border: 1px solid var(--border);
}

.input-group {
    margin-bottom: var(--space-md);
}

.input-label {
    display: block;
    font-size: 0.625rem;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
}

.input {
    width: 100%;
    padding: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
    background: var(--bg-deep);
    border: 1px solid var(--border);
    outline: none;
    transition: all var(--transition-fast);
}

.input::placeholder {
    color: var(--text-muted);
}

.input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-sm {
    padding: var(--space-sm) var(--space-md);
}

.select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2352525b' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) center;
    padding-right: var(--space-xl);
}

.textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: var(--space-md);
    text-align: center;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background: var(--accent-dim);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--accent-glow);
}

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

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

.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ============================================
   Divider
   ============================================ */

.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    padding: var(--space-xl) var(--space-lg);
}

.divider-line {
    flex: 1;
    max-width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-accent), transparent);
}

.divider-icon {
    color: var(--accent);
    font-size: 0.75rem;
    opacity: 0.5;
}

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

.footer {
    position: relative;
    padding: var(--space-2xl) var(--space-lg);
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    z-index: 1;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.footer-brand {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.5rem;
}

.footer-tagline {
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    color: var(--text-muted);
}

.footer-divider {
    height: 1px;
    background: var(--border);
    margin-bottom: var(--space-xl);
}

/* Domain Section */
.domain-section {
    max-width: 800px;
    margin: 0 auto var(--space-xl);
    text-align: center;
}

.domain-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.domain-icon {
    color: var(--accent);
    opacity: 0.5;
}

.domain-title {
    font-family: var(--font-display);
    font-weight: 500;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
}

.domain-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

.domain-desc strong {
    color: var(--accent);
}

.domain-form {
    background: transparent;
    border: none;
    padding: 0;
}

.domain-form-row {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.domain-form-row .input-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 180px;
    max-width: 220px;
}

.domain-form-row .btn {
    width: auto;
    min-width: 120px;
}

/* Footer Bottom */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border);
}

.footer-copy {
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

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

.footer-link {
    font-size: 0.625rem;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--accent);
}

/* ============================================
   Modal
   ============================================ */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 11, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    padding: var(--space-xl);
    max-width: 400px;
    text-align: center;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--bg-deep);
    background: var(--accent);
    border-radius: 50%;
}

.modal-title {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    letter-spacing: 0.05em;
}

.modal-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.modal-close {
    width: auto;
    padding: var(--space-sm) var(--space-xl);
}

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

@media (max-width: 1024px) {
    .section-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .section-grid-reverse {
        direction: ltr;
    }
    
    .section-info {
        position: relative;
        top: 0;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: var(--space-lg);
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 3rem;
        --space-2xl: 5rem;
    }
    
    .nav {
        padding: var(--space-md);
    }
    
    .hero {
        padding: var(--space-xl) var(--space-md);
        padding-top: calc(var(--space-xl) + 80px);
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .stat-value {
        font-size: 2rem;
    }
    
    .section {
        padding: var(--space-xl) var(--space-md);
    }
    
    .section-number {
        font-size: 3rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .form {
        padding: var(--space-lg);
    }
    
    .footer-top {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
    
    .domain-form-row {
        flex-direction: column;
    }
    
    .domain-form-row .input-group {
        max-width: 100%;
    }
    
    .domain-form-row .btn {
        width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .orb {
        display: none;
    }
}