/**
 * Solutions in Software and Hardware
 * Estilos principales del sitio web
 * @author Joan Miam
 * @version 2.0.0
 */

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

:root {
    /* Colores primarios */
    --primary: #0A1628;
    --primary-mid: #0F2847;
    --primary-light: #1A3A5C;
    
    /* Colores de acento */
    --accent: #3B82F6;
    --accent-light: #60A5FA;
    --accent-glow: rgba(59, 130, 246, 0.4);
    --cyan: #06B6D4;
    
    /* Colores de texto */
    --text: #E2E8F0;
    --text-muted: #94A3B8;
    --text-dark: #1E293B;
    
    /* Fondos */
    --bg-dark: #020617;
    --bg-card: rgba(15, 23, 42, 0.6);
    --bg-card-hover: rgba(30, 41, 59, 0.8);
    
    /* Bordes */
    --border: rgba(59, 130, 246, 0.15);
    --border-hover: rgba(59, 130, 246, 0.4);
    
    /* Glassmorphism */
    --glass: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
    
    /* Estados */
    --success: #10B981;
    --error: #EF4444;
    
    /* Gradientes */
    --gradient-1: linear-gradient(135deg, #3B82F6, #06B6D4);
    --gradient-2: linear-gradient(135deg, #0A1628, #0F2847, #1A3A5C);
    
    /* Transiciones */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ==================== PRELOADER ==================== */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--bg-dark);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 2rem;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-logo {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.preloader-bar {
    width: 200px;
    height: 3px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 10px;
    overflow: hidden;
}

.preloader-bar::after {
    content: '';
    display: block;
    width: 40%;
    height: 100%;
    background: var(--gradient-1);
    border-radius: 10px;
    animation: preload 1.2s ease-in-out infinite;
}

@keyframes preload {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(350%); }
}

/* ==================== CURSOR GLOW ==================== */
.cursor-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
}

/* ==================== HEADER ==================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-medium);
}

header.scrolled {
    background: rgba(2, 6, 23, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.6rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    text-decoration: none;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.logo span {
    font-weight: 400;
    opacity: 0.7;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text);
    background: rgba(59, 130, 246, 0.1);
}

.nav-cta {
    background: var(--gradient-1) !important;
    color: white !important;
    padding: 0.6rem 1.5rem !important;
    border-radius: 8px !important;
    font-weight: 600 !important;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(59, 130, 246, 0.5) !important;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
    z-index: 1001;
    padding: 5px;
}

.hamburger span {
    width: 28px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition-medium);
    transform-origin: center;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ==================== HERO ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 2rem 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: orbFloat 15s ease-in-out infinite;
}

.hero-orb-1 {
    width: 600px;
    height: 600px;
    background: rgba(59, 130, 246, 0.15);
    top: -200px;
    right: -200px;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: rgba(6, 182, 212, 0.1);
    bottom: -150px;
    left: -100px;
    animation-delay: -5s;
}

.hero-orb-3 {
    width: 300px;
    height: 300px;
    background: rgba(59, 130, 246, 0.08);
    top: 50%;
    left: 50%;
    animation-delay: -10s;
}

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

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.2rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-light);
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.3s;
}

.hero-badge .pulse {
    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: 0.8; box-shadow: 0 0 0 8px transparent; }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.5s;
}

.hero h1 .gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-tagline {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    font-weight: 400;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.7s;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.9s;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    background: var(--gradient-1);
    color: white;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    font-family: inherit;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    background: transparent;
    color: var(--text);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
    font-family: inherit;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    border-color: var(--accent);
    background: rgba(59, 130, 246, 0.05);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 1.1s;
}

.hero-stat {
    text-align: center;
}

.hero-stat .number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.hero-stat .label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

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

/* ==================== SCROLL REVEAL ==================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: var(--transition-slow);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ==================== SECTIONS COMMON ==================== */
.section {
    padding: 100px 2rem;
    position: relative;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-label::before {
    content: '';
    width: 30px;
    height: 2px;
    background: var(--gradient-1);
    border-radius: 2px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 550px;
}

.section-header {
    margin-bottom: 4rem;
}

.section-header.center {
    text-align: center;
}

.section-header.center .section-subtitle {
    margin: 0 auto;
}

.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border), transparent);
}

/* ==================== ABOUT ==================== */
.about {
    background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(15, 23, 42, 0.3) 100%);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-card-stack {
    position: relative;
    height: 400px;
}

.about-floating-card {
    position: absolute;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-floating-card:hover {
    transform: translateY(-5px) !important;
}

.afc-1 {
    top: 0;
    left: 0;
    width: 280px;
    z-index: 3;
    animation: floatCard1 6s ease-in-out infinite;
}

.afc-2 {
    top: 60px;
    right: 0;
    width: 250px;
    z-index: 2;
    animation: floatCard2 7s ease-in-out infinite;
}

.afc-3 {
    bottom: 0;
    left: 30px;
    width: 260px;
    z-index: 1;
    animation: floatCard3 8s ease-in-out infinite;
}

@keyframes floatCard1 {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes floatCard2 {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes floatCard3 {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.afc-icon {
    font-size: 2rem;
    margin-bottom: 0.8rem;
}

.afc-title {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.afc-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

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

.founder-card {
    margin-top: 2rem;
    padding: 1.5rem 2rem;
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.founder-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-1);
}

.founder-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.3rem;
}

.founder-role {
    font-size: 0.9rem;
    color: var(--accent-light);
    margin-bottom: 0.5rem;
}

.founder-quote {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ==================== SERVICES ==================== */
.services-bg {
    background: radial-gradient(ellipse at top, rgba(59, 130, 246, 0.03) 0%, transparent 70%);
}

.services-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 0.7rem 2rem;
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-muted);
    border-radius: 10px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.tab-btn:hover {
    border-color: var(--accent);
    color: var(--text);
}

.tab-btn.active {
    background: var(--gradient-1);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.services-panel {
    display: none;
}

.services-panel.active {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2rem;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1px;
    background: linear-gradient(135deg, transparent, transparent, rgba(59, 130, 246, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    background: var(--bg-card-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.service-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
    transition: var(--transition-fast);
}

.service-card:hover .service-icon-wrap {
    background: rgba(59, 130, 246, 0.2);
    transform: scale(1.05);
}

.service-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ==================== WHY CHOOSE US ==================== */
.why-us-bg {
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.3) 0%, var(--bg-dark) 50%, rgba(15, 23, 42, 0.3) 100%);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.why-card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.why-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.08), transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.why-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-8px);
}

.why-card:hover::after {
    opacity: 1;
}

.why-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 1.2rem;
    position: relative;
    z-index: 1;
    transition: var(--transition-fast);
}

.why-card:hover .why-icon {
    background: rgba(59, 130, 246, 0.2);
    box-shadow: 0 0 30px rgba(59, 130, 246, 0.2);
}

.why-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.why-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* ==================== PORTFOLIO ==================== */
.portfolio-bg {
    background: radial-gradient(ellipse at bottom, rgba(59, 130, 246, 0.03) 0%, transparent 70%);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.portfolio-card {
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    overflow: hidden;
    background: var(--bg-card);
    transition: var(--transition-medium);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.portfolio-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: var(--border-hover);
}

.portfolio-visual {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.portfolio-visual .bg-pattern {
    position: absolute;
    inset: 0;
    opacity: 0.4;
}

.pv-1 .bg-pattern { background: linear-gradient(135deg, #1e3a5f, #0f2847); }
.pv-2 .bg-pattern { background: linear-gradient(135deg, #0f2847, #1a3a5c); }
.pv-3 .bg-pattern { background: linear-gradient(135deg, #0d2137, #1e3a5f); }
.pv-4 .bg-pattern { background: linear-gradient(135deg, #1a3a5c, #0d2137); }

.portfolio-visual .icon-big {
    font-size: 4rem;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 20px rgba(59, 130, 246, 0.3));
    transition: transform 0.4s ease;
}

.portfolio-card:hover .icon-big {
    transform: scale(1.1);
}

.portfolio-info {
    padding: 1.5rem;
}

.portfolio-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-light);
    background: rgba(59, 130, 246, 0.1);
    border-radius: 50px;
    margin-bottom: 0.5rem;
}

.portfolio-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.portfolio-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ==================== CONTACT ==================== */
.contact-bg {
    background: linear-gradient(180deg, var(--bg-dark) 0%, rgba(15, 23, 42, 0.3) 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition-fast);
}

.contact-info-card:hover {
    border-color: var(--border-hover);
    transform: translateX(5px);
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(59, 130, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.contact-info-text h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.15rem;
}

.contact-info-text p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group 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 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
}

.form-group select option {
    background: var(--primary);
    color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 110px;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: var(--error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-msg {
    color: var(--error);
    font-size: 0.8rem;
    margin-top: 0.3rem;
    display: none;
}

.form-group.error .error-msg {
    display: block;
    animation: shake 0.4s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.submit-btn {
    width: 100%;
    padding: 0.9rem;
    background: var(--gradient-1);
    color: white;
    border: none;
    border-radius: 10px;
    font-family: inherit;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    position: relative;
    overflow: hidden;
}

.submit-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

.submit-btn:hover::after {
    transform: translateX(100%);
}

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

.form-alert {
    padding: 0.8rem 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: none;
    align-items: center;
    gap: 0.5rem;
}

.form-alert.success {
    display: flex;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--success);
    animation: fadeIn 0.4s ease;
}

.form-alert.error {
    display: flex;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--error);
    animation: fadeIn 0.4s ease;
}

/* ==================== FOOTER ==================== */
footer {
    background: var(--primary);
    border-top: 1px solid var(--glass-border);
    padding: 4rem 2rem 2rem;
}

.footer-grid {
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 1rem;
    max-width: 300px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.2rem;
    color: var(--text);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.6rem;
}

.footer-col a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.footer-col a:hover {
    color: var(--accent-light);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: 1.1rem;
}

.social-link:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
}

/* Social icons SVG */
.social-link svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.footer-bottom {
    max-width: 1300px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--gradient-1);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    z-index: 100;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-card-stack {
        height: auto;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
    
    .about-floating-card {
        position: relative;
        top: auto;
        left: auto;
        right: auto;
        bottom: auto;
        width: 100%;
        animation: none;
    }
    
    .afc-3 {
        grid-column: span 2;
    }
    
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        background: rgba(2, 6, 23, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 0.5rem;
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        border-left: 1px solid var(--glass-border);
    }

    .nav-links.open {
        right: 0;
    }
    
    .nav-links a {
        font-size: 1.1rem;
        padding: 0.8rem 1rem;
        width: 100%;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-stats {
        gap: 1.5rem;
    }
    
    .hero-stat .number {
        font-size: 2rem;
    }
    
    .section {
        padding: 60px 1.5rem;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .about-card-stack {
        grid-template-columns: 1fr;
    }
    
    .afc-3 {
        grid-column: span 1;
    }
    
    .services-tabs {
        flex-wrap: wrap;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .cursor-glow {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
}

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

*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ==================== CUSTOM SCROLLBAR ==================== */
::-webkit-scrollbar {
    width: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}