/* ============================================
   Optimum Horizons - Premium Design System
   ============================================ */

:root {
    /* Colors - Deep space theme with vibrant tech accents */
    --color-bg: #030712;
    --color-bg-elevated: #0f172a;
    --color-bg-glass: rgba(15, 23, 42, 0.4);
    
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;
    
    --color-accent-1: #0ea5e9; /* Cyan */
    --color-accent-2: #8b5cf6; /* Violet */
    --color-accent-3: #10b981; /* Emerald */
    
    --gradient-primary: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-2));
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(14, 165, 233, 0.3);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --container-max: 1200px;
    --header-height: 80px;
    --section-pad: clamp(4rem, 10vw, 8rem);
    
    /* Transitions */
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

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

::selection {
    background-color: var(--color-accent-1);
    color: #fff;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-pad {
    padding: var(--section-pad) 0;
}

/* Typography Utils */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.1;
    font-weight: 800;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

/* ============================================
   Background Effects
   ============================================ */
.grain-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.08) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 1;
    transition: transform 0.1s ease-out;
    mix-blend-mode: screen;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    border: none;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.15);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    border-color: var(--color-text);
    background: rgba(255, 255, 255, 0.05);
}

.btn-nav {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--color-text);
}

.btn-nav:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

/* ============================================
   Header & Nav
   ============================================ */
.header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: var(--header-height);
    z-index: 100;
    transition: all 0.3s var(--transition-smooth);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    background: rgba(3, 7, 18, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
}

.nav {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    z-index: 101;
}

.logo-img {
    height: 32px;
    width: auto;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-text);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
    width: 30px;
    height: 20px;
    position: relative;
}

.mobile-menu-btn span {
    position: absolute;
    width: 100%;
    height: 2px;
    background: var(--color-text);
    left: 0;
    transition: 0.3s ease;
}

.mobile-menu-btn span:first-child { top: 0; }
.mobile-menu-btn span:last-child { bottom: 0; }

.mobile-menu-btn.active span:first-child {
    transform: rotate(45deg);
    top: 9px;
}
.mobile-menu-btn.active span:last-child {
    transform: rotate(-45deg);
    bottom: 9px;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    animation: float 20s infinite alternate ease-in-out;
}

.orb-1 {
    top: -10%; left: -10%;
    width: 50vw; height: 50vw;
    background: var(--color-accent-2);
}

.orb-2 {
    bottom: -20%; right: -10%;
    width: 60vw; height: 60vw;
    background: var(--color-accent-1);
    animation-delay: -5s;
}

.grid-lines {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 4rem 4rem;
    mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
    -webkit-mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px; height: 8px;
    background: var(--color-accent-3);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-accent-3);
    animation: pulse 2s infinite;
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5.5rem);
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.glass-card {
    background: var(--color-bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.visual-card {
    position: relative;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.visual-card:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.dots {
    display: flex; gap: 6px;
}
.dots span {
    width: 10px; height: 10px; border-radius: 50%;
    background: #475569;
}
.dots span:nth-child(1) { background: #ef4444; }
.dots span:nth-child(2) { background: #eab308; }
.dots span:nth-child(3) { background: #22c55e; }

.card-title-sm {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent-3);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.data-row {
    margin-bottom: 1.5rem;
}

.data-row:last-child { margin-bottom: 0; }

.data-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.data-bar {
    height: 6px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.data-bar .fill {
    height: 100%;
    background: var(--color-accent-1);
    border-radius: 3px;
    position: relative;
}

.data-bar .fill::after {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
    animation: shimmer 2s infinite;
}

.data-bar .fill.alert { background: #ef4444; }
.data-bar .fill.success { background: #22c55e; }

.data-value {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.2rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text-muted);
    z-index: 2;
}

.scroll-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    animation: scrollLine 2s infinite;
}

/* ============================================
   Services Section
   ============================================ */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 5rem;
}

.section-title {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    margin-bottom: 1rem;
}

.section-description {
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 3rem 2rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.15);
}

.card-glow {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(14, 165, 233, 0.1), transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.service-card:hover .card-glow { opacity: 1; }

.service-icon {
    width: 48px; height: 48px;
    margin-bottom: 2rem;
    color: var(--color-accent-1);
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-desc {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ============================================
   About Section
   ============================================ */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.hologram-effect {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.holo-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid var(--border-glow);
    animation: spin linear infinite;
}

.r1 { width: 60%; height: 60%; animation-duration: 20s; border-top-color: var(--color-accent-1); }
.r2 { width: 80%; height: 80%; animation-duration: 30s; animation-direction: reverse; border-right-color: var(--color-accent-2); }
.r3 { width: 100%; height: 100%; animation-duration: 40s; border-bottom-color: var(--color-accent-3); opacity: 0.5; }

.holo-core {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(14, 165, 233, 0.5));
}

.about-text {
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
}

.about-text.muted {
    color: var(--color-text-muted);
    font-size: 1rem;
}

.feature-list {
    list-style: none;
    margin-top: 2.5rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.check-icon {
    width: 24px; height: 24px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-3);
    display: flex; align-items: center; justify-content: center;
}

.check-icon svg { width: 14px; height: 14px; }

/* ============================================
   Marquee
   ============================================ */
.marquee-section {
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: rgba(255,255,255,0.01);
    overflow: hidden;
}

.marquee-container {
    width: 100%;
    overflow: hidden;
}

.marquee {
    display: inline-flex;
    white-space: nowrap;
    animation: marquee 30s linear infinite;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.marquee span { margin: 0 1rem; }
.marquee .separator { color: var(--color-accent-1); }

/* ============================================
   Contact Section
   ============================================ */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-desc {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.meta-item {
    margin-bottom: 2rem;
}

.meta-label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.meta-value {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 500;
}

.meta-value.link {
    color: var(--color-text);
    text-decoration: none;
    transition: color 0.3s;
}

.meta-value.link:hover { color: var(--color-accent-1); }

.glass-panel {
    background: var(--color-bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.input-group {
    position: relative;
}

.input-group input,
.input-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1rem 0;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    resize: none;
}

.input-group input:focus,
.input-group textarea:focus { outline: none; }

.input-group label {
    position: absolute;
    top: 1rem; left: 0;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.input-group input:focus ~ label,
.input-group input:valid ~ label,
.input-group textarea:focus ~ label,
.input-group textarea:valid ~ label {
    top: -10px;
    font-size: 0.75rem;
    color: var(--color-accent-1);
}

.input-line {
    position: absolute;
    bottom: 0; left: 0; width: 100%; height: 1px;
    background: var(--border-color);
}

.input-line::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; width: 0%; height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

.input-group input:focus ~ .input-line::after,
.input-group textarea:focus ~ .input-line::after {
    width: 100%;
}

.btn-submit {
    margin-top: 1rem;
    width: 100%;
    padding: 1.25rem;
    border-radius: 12px;
}

.btn-loader {
    display: none;
    width: 20px; height: 20px;
    border: 2px solid var(--color-bg);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn-submit.loading .btn-text { display: none; }
.btn-submit.loading .btn-loader { display: block; }

/* ============================================
   Footer
   ============================================ */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    background: #010308;
}

.footer-brand {
    text-align: center;
    margin-bottom: 4rem;
}

.footer-brand .logo { justify-content: center; margin-bottom: 1rem; }
.footer-tagline { color: var(--color-text-muted); }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.footer-links { display: flex; gap: 2rem; }
.footer-links a { color: var(--color-text-muted); text-decoration: none; transition: color 0.3s; }
.footer-links a:hover { color: var(--color-text); }

/* ============================================
   Animations & Media Queries
   ============================================ */
@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(5%, 10%); }
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    50.1% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Reveal Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.delay-1 { animation-delay: 0.2s; transition-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; transition-delay: 0.4s; }

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

/* Responsive */
@media (max-width: 992px) {
    .hero-title { font-size: 3.5rem; }
    .hero-container, .about-container, .contact-container { grid-template-columns: 1fr; gap: 4rem; }
    .visual-card { max-width: 500px; margin: 0 auto; }
}

@media (max-width: 768px) {
    .nav-links, .btn-nav { display: none; }
    .mobile-menu-btn { display: block; }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--header-height);
        left: 0; width: 100%;
        background: rgba(3, 7, 18, 0.95);
        backdrop-filter: blur(16px);
        padding: 2rem;
        border-bottom: 1px solid var(--border-color);
        align-items: center;
        gap: 1.5rem;
    }
    
    .hero-title { font-size: 2.5rem; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}