/* =====================================================
   INNOSECURE - Modern 3D Design System
   ===================================================== */

:root {
    --primary: #0066FF;
    --primary-dark: #0048B3;
    --primary-light: #4D94FF;
    --accent: #00D4FF;
    --accent-2: #7C5CFF;
    --gold: #FFB800;

    --bg-dark: #050B1F;
    --bg-darker: #020611;
    --bg-card: rgba(15, 25, 50, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.05);

    --text-primary: #FFFFFF;
    --text-secondary: #B8C5E0;
    --text-muted: #6B7896;

    --border-glass: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(0, 212, 255, 0.3);

    --shadow-glow: 0 0 30px rgba(0, 102, 255, 0.3);
    --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 30px 80px rgba(0, 102, 255, 0.4);

    --gradient-primary: linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
    --gradient-accent: linear-gradient(135deg, #7C5CFF 0%, #00D4FF 100%);
    --gradient-dark: linear-gradient(180deg, #050B1F 0%, #020611 100%);
    --gradient-gold: linear-gradient(135deg, #FFB800 0%, #FF7849 100%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Tajawal', 'Cairo', system-ui, -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    min-height: 100vh;
}

img { max-width: 100%; height: auto; }

a { color: var(--accent); text-decoration: none; transition: all 0.3s ease; }
a:hover { color: var(--primary-light); }

::selection { background: var(--primary); color: white; }

/* ========== 3D Background ========== */
.bg-3d-container {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: var(--gradient-dark);
}

#bg-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }

.bg-gradient-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top, rgba(0, 102, 255, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at bottom, rgba(124, 92, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    from { transform: translate(0, 0); }
    to { transform: translate(50px, 50px); }
}

/* ========== Navbar ========== */
.navbar-glass {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    background: rgba(5, 11, 31, 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass);
    transition: all 0.4s ease;
}

.navbar-glass.scrolled {
    padding: 10px 0;
    background: rgba(5, 11, 31, 0.85);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-primary);
}

.brand-logo {
    width: 50px;
    height: 50px;
    object-fit: contain;
    filter: drop-shadow(0 0 12px rgba(0, 212, 255, 0.6));
    transition: transform 0.4s ease;
}

.nav-brand:hover .brand-logo { transform: rotateY(360deg); }

.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-size: 22px; font-weight: 900; letter-spacing: 1px; color: white; }
.brand-name .accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.brand-tag { font-size: 11px; color: var(--text-secondary); font-weight: 500; }

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 15px;
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: white;
    background: rgba(0, 212, 255, 0.08);
}

.nav-link.cta-link {
    background: var(--gradient-primary);
    color: white !important;
    box-shadow: 0 4px 20px rgba(0, 102, 255, 0.4);
}

.nav-link.cta-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 102, 255, 0.6);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    width: 26px;
    height: 3px;
    background: white;
    border-radius: 2px;
    transition: all 0.3s ease;
}

@media (max-width: 992px) {
    .mobile-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0; right: 0;
        flex-direction: column;
        background: rgba(5, 11, 31, 0.98);
        backdrop-filter: blur(30px);
        padding: 30px;
        gap: 12px;
        transform: translateY(-150%);
        transition: transform 0.4s ease;
        border-bottom: 1px solid var(--border-glass);
    }
    .nav-menu.open { transform: translateY(0); }
    .nav-link { width: 100%; justify-content: center; }
}

/* ========== Hero ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: 100px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
    font-size: clamp(2.4rem, 6vw, 4.8rem);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

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

.hero-desc {
    font-size: clamp(1rem, 1.6vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.btn-3d {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: var(--gradient-primary);
    color: white;
    font-weight: 700;
    font-size: 16px;
    border-radius: 14px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.4);
}

.btn-3d::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.btn-3d:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 16px 40px rgba(0, 102, 255, 0.6);
    color: white;
}

.btn-3d:hover::before { opacity: 1; }

.btn-3d.btn-outline {
    background: transparent;
    border: 2px solid var(--border-glow);
    color: var(--accent);
    box-shadow: none;
}

.btn-3d.btn-outline:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--accent);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    max-width: 700px;
}

.stat-item {
    padding: 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-4px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.stat-number {
    font-size: 32px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label { color: var(--text-secondary); font-size: 13px; margin-top: 4px; }

.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 1000px;
}

.hero-3d-card {
    position: relative;
    width: 100%;
    max-width: 450px;
    height: 450px;
    transform-style: preserve-3d;
    animation: float3d 6s ease-in-out infinite;
}

@keyframes float3d {
    0%, 100% { transform: translateY(0) rotateY(0); }
    50% { transform: translateY(-20px) rotateY(8deg); }
}

.hero-3d-card .floating-icon {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 20px;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    color: var(--accent);
    font-size: 32px;
    animation: bobIcon 4s ease-in-out infinite;
}

.hero-3d-card .floating-icon:nth-child(1) { top: 10%; left: 10%; animation-delay: 0s; color: var(--accent); }
.hero-3d-card .floating-icon:nth-child(2) { top: 20%; right: 5%; animation-delay: 1s; color: var(--accent-2); }
.hero-3d-card .floating-icon:nth-child(3) { bottom: 25%; left: 5%; animation-delay: 2s; color: var(--gold); }
.hero-3d-card .floating-icon:nth-child(4) { bottom: 10%; right: 15%; animation-delay: 1.5s; color: #22D3A6; }
.hero-3d-card .floating-icon:nth-child(5) {
    top: 45%; left: 45%;
    width: 120px; height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    background: var(--gradient-primary);
    color: white;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 60px rgba(0, 212, 255, 0.5);
    animation: pulse3d 3s ease-in-out infinite;
}

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

@keyframes pulse3d {
    0%, 100% { transform: translate(-50%, -50%) scale(1); box-shadow: 0 0 60px rgba(0, 212, 255, 0.5); }
    50% { transform: translate(-50%, -50%) scale(1.05); box-shadow: 0 0 100px rgba(0, 212, 255, 0.8); }
}

/* ========== Section Common ========== */
.section { padding: 100px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 60px; }

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: 100px;
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 900;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
}

/* ========== Services ========== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 28px;
}

.service-card {
    position: relative;
    padding: 40px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    backdrop-filter: blur(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    overflow: hidden;
    cursor: pointer;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, var(--card-accent, var(--primary)) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.service-card::after {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(135deg, var(--card-accent, var(--accent)), transparent);
    -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;
    pointer-events: none;
}

.service-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: transparent;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}

.service-card:hover::before { opacity: 0.15; }
.service-card:hover::after { opacity: 1; }

.service-icon-wrap {
    position: relative;
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--card-accent, var(--primary)) 0%, transparent 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: transform 0.4s ease;
}

.service-card:hover .service-icon-wrap { transform: rotateY(180deg) scale(1.05); }

.service-icon-wrap i {
    font-size: 38px;
    color: white;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

.service-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 12px; color: white; }
.service-card p { color: var(--text-secondary); font-size: 15px; line-height: 1.8; margin-bottom: 20px; }

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--card-accent, var(--accent));
    font-weight: 700;
    font-size: 14px;
    transition: gap 0.3s ease;
}

.service-card:hover .service-link { gap: 14px; }

/* ========== Portfolio Grid ========== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 24px;
    overflow: hidden;
    cursor: pointer;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    transition: all 0.4s ease;
    display: block;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-hover);
}

.portfolio-item:hover img { transform: scale(1.1); }

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(5, 11, 31, 0.95) 0%, rgba(5, 11, 31, 0.3) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 30px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.portfolio-item:hover .portfolio-overlay { opacity: 1; }

.portfolio-overlay .badge {
    background: var(--gradient-primary);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 700;
    align-self: flex-start;
    margin-bottom: 12px;
}

.portfolio-overlay h4 { font-size: 22px; font-weight: 800; color: white; margin-bottom: 6px; }
.portfolio-overlay p { color: var(--text-secondary); font-size: 14px; margin: 0; }

.portfolio-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    background: var(--bg-glass);
    border: 1px dashed var(--border-glass);
    border-radius: 24px;
    color: var(--text-secondary);
}

/* ========== Why Us ========== */
.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.why-card {
    padding: 32px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    text-align: center;
    transition: all 0.3s ease;
}

.why-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    background: var(--bg-card);
}

.why-card .icon-circle {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.4);
}

.why-card h4 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.why-card p { color: var(--text-secondary); font-size: 14px; margin: 0; }

/* ========== CTA Banner ========== */
.cta-banner {
    position: relative;
    padding: 80px 40px;
    background: var(--gradient-primary);
    border-radius: 32px;
    overflow: hidden;
    text-align: center;
}

.cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(255,255,255,0.2), transparent 50%);
}

.cta-banner h2 { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 900; color: white; margin-bottom: 16px; position: relative; }
.cta-banner p { color: rgba(255,255,255,0.9); font-size: 18px; margin-bottom: 30px; position: relative; }
.cta-banner .btn-3d { background: white; color: var(--primary); position: relative; }

/* ========== Footer ========== */
.site-footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-glass);
    position: relative;
    margin-top: 80px;
}

.footer-glow {
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 200px;
    background: radial-gradient(ellipse at top, rgba(0, 102, 255, 0.2), transparent 70%);
    pointer-events: none;
}

.footer-brand h4 { font-size: 24px; font-weight: 900; letter-spacing: 1px; margin: 12px 0; }

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

.footer-brand p { color: var(--text-secondary); margin-bottom: 20px; }

.footer-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: drop-shadow(0 0 12px rgba(0, 212, 255, 0.4));
}

.social-icons { display: flex; gap: 12px; }

.social-icon {
    width: 42px;
    height: 42px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-3px);
    border-color: transparent;
}

.footer-title { color: white; font-size: 18px; font-weight: 800; margin-bottom: 20px; }

.footer-links, .footer-contact { list-style: none; }
.footer-links li, .footer-contact li { margin-bottom: 12px; }

.footer-links a {
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    transition: all 0.3s ease;
}

.footer-links a:hover { color: var(--accent); transform: translateX(-5px); }

.footer-contact li {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
}

.footer-contact i { color: var(--accent); font-size: 16px; }
.footer-contact a { color: var(--text-secondary); }
.footer-contact a:hover { color: var(--accent); }

.footer-bottom {
    border-top: 1px solid var(--border-glass);
    padding: 24px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* ========== Floating Buttons ========== */
.float-whatsapp, .float-quick-call {
    position: fixed;
    bottom: 30px;
    z-index: 999;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 26px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.float-whatsapp { left: 30px; background: linear-gradient(135deg, #25D366, #128C7E); }
.float-quick-call { left: 100px; background: var(--gradient-primary); }

.float-whatsapp:hover, .float-quick-call:hover {
    transform: scale(1.1) translateY(-3px);
    color: white;
}

.pulse-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 3px solid #25D366;
    animation: pulseRing 2s infinite;
}

@keyframes pulseRing {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* ========== Quick Modal ========== */
.quick-modal {
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 17, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.quick-modal.open { display: flex; }

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.quick-modal-content {
    background: linear-gradient(180deg, #0A1530 0%, #050B1F 100%);
    border: 1px solid var(--border-glow);
    border-radius: 24px;
    padding: 40px;
    max-width: 500px;
    width: 100%;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
    position: relative;
    animation: slideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.quick-close {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 50%;
    background: var(--bg-glass);
    color: white;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quick-close:hover {
    background: var(--primary);
    transform: rotate(90deg);
}

.quick-modal-header { text-align: center; margin-bottom: 24px; }

.quick-modal-header i {
    font-size: 48px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    display: inline-block;
}

.quick-modal-header h3 { font-size: 26px; font-weight: 800; color: white; margin-bottom: 6px; }
.quick-modal-header p { color: var(--text-secondary); font-size: 14px; }

.form-group {
    position: relative;
    margin-bottom: 16px;
}

.form-group > i {
    position: absolute;
    top: 16px;
    right: 16px;
    color: var(--text-muted);
    font-size: 18px;
    z-index: 1;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 50px 14px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    color: white;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 212, 255, 0.05);
    box-shadow: 0 0 0 4px rgba(0, 212, 255, 0.1);
}

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

.btn-submit-3d {
    width: 100%;
    padding: 16px 24px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 800;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 102, 255, 0.4);
}

.btn-submit-3d:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(0, 102, 255, 0.6);
}

.btn-submit-3d:active { transform: translateY(-1px); }

#quickResult { margin-top: 16px; text-align: center; }

.result-success {
    padding: 14px;
    background: rgba(34, 211, 166, 0.1);
    border: 1px solid #22D3A6;
    border-radius: 12px;
    color: #22D3A6;
}

.result-error {
    padding: 14px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #EF4444;
    border-radius: 12px;
    color: #EF4444;
}

/* ========== Page Header ========== */
.page-header {
    padding: 160px 0 60px;
    text-align: center;
    position: relative;
}

.page-header h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.breadcrumb-3d {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 100px;
    backdrop-filter: blur(10px);
    color: var(--text-secondary);
    font-size: 14px;
}

.breadcrumb-3d a { color: var(--text-secondary); }
.breadcrumb-3d .current { color: var(--accent); font-weight: 700; }

/* ========== Tutorials ========== */
.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 28px;
}

.tutorial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.tutorial-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-hover);
}

.tutorial-cover {
    aspect-ratio: 16/9;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: white;
}

.tutorial-cover img { width: 100%; height: 100%; object-fit: cover; }

.tutorial-body { padding: 24px; }
.tutorial-body h4 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.tutorial-body p { color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; }

.tutorial-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
}

/* ========== Alerts ========== */
.alert-success-3d {
    padding: 16px 20px;
    background: rgba(34, 211, 166, 0.1);
    border: 1px solid #22D3A6;
    border-radius: 14px;
    color: #22D3A6;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error-3d {
    padding: 16px 20px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #EF4444;
    border-radius: 14px;
    color: #EF4444;
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
}

/* ========== Contact Page ========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 40px;
    align-items: stretch;
}

@media (max-width: 992px) {
    .contact-grid { grid-template-columns: 1fr; }
}

.contact-info-card,
.contact-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(20px);
}

.contact-info-card h3,
.contact-form-card h3 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 8px;
}

.contact-info-card h3 {
    margin-bottom: 24px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-form-card .form-desc { color: var(--text-secondary); margin-bottom: 24px; }

.info-item {
    display: flex;
    gap: 16px;
    padding: 18px 0;
    border-bottom: 1px solid var(--border-glass);
}

.info-item:last-child { border-bottom: none; }

.info-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 22px;
}

.info-text h5 {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.info-text p, .info-text a {
    color: white;
    font-size: 16px;
    font-weight: 600;
    margin: 0;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 600px) {
    .field-row { grid-template-columns: 1fr; }
}

.field-label {
    display: block;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 6px;
}

/* Utilities */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 24px;
    backdrop-filter: blur(20px);
    padding: 32px;
}

.about-stat {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
}

.about-stat .num {
    font-size: 52px;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.about-stat .label { color: var(--text-secondary); margin-top: 8px; font-size: 16px; }

.text-center { text-align: center; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-darker); }
::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }