/* ===== CSS Variables ===== */
:root {
    --primary: #1B3A5C;
    --primary-light: #2196F3;
    --primary-lighter: #64B5F6;
    --accent: #00D4FF;
    --dark: #0a1628;
    --dark-2: #111d33;
    --text: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg: #ffffff;
    --bg-light: #f8fafd;
    --bg-card: #ffffff;
    --border: #e8edf5;
    --gradient: linear-gradient(135deg, #1B3A5C 0%, #2196F3 50%, #00D4FF 100%);
    --gradient-text: linear-gradient(135deg, #2196F3, #00D4FF);
    --shadow: 0 4px 20px rgba(27, 58, 92, 0.08);
    --shadow-lg: 0 10px 40px rgba(27, 58, 92, 0.12);
    --shadow-xl: 0 20px 60px rgba(27, 58, 92, 0.15);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s 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: 80px; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    background: var(--bg);
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; }

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

.section { padding: 100px 0; }
.section-header { text-align: center; max-width: 700px; margin: 0 auto 60px; }
.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, rgba(33,150,243,0.1), rgba(0,212,255,0.1));
    color: var(--primary-light);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
}
.section-header h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
    line-height: 1.2;
}
.section-desc {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
}
.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(33, 150, 243, 0.4);
}
.btn-outline {
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
}
.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: rgba(255,255,255,0.5);
}
.btn-full { width: 100%; justify-content: center; }

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}
.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    padding: 10px 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo img { height: 40px; }
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    position: relative;
}
.navbar.scrolled .nav-links a { color: var(--text); }
.nav-links a:hover { color: var(--primary-light); }
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-light);
    transition: var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta {
    background: var(--gradient) !important;
    color: white !important;
    padding: 8px 24px !important;
    border-radius: 50px !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(33,150,243,0.3); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    margin: 5px 0;
    transition: var(--transition);
}
.navbar.scrolled .nav-toggle span { background: var(--primary); }

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 120px 0 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0a1628 0%, #1B3A5C 40%, #1565C0 100%);
    z-index: 0;
}
.hero-particles {
    position: absolute;
    inset: 0;
    opacity: 0.3;
}
.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(33, 150, 243, 0.15);
    border: 1px solid rgba(33, 150, 243, 0.3);
    color: var(--accent);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}
.hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3.2rem;
    font-weight: 800;
    color: white;
    line-height: 1.15;
    margin-bottom: 24px;
}
.hero .gradient-text {
    background: linear-gradient(135deg, #64B5F6, #00D4FF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero-desc {
    font-size: 1.15rem;
    color: rgba(255,255,255,0.75);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 520px;
}
.hero-buttons { display: flex; gap: 16px; margin-bottom: 50px; flex-wrap: wrap; }

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.stat-item {
    text-align: center;
    padding: 16px 8px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
}
.stat-number, .stat-suffix {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}
.stat-label {
    display: block;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.6);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Hero Visual */
.hero-visual { position: relative; }
.hero-illustration { position: relative; }
.code-window {
    background: #1e1e2e;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255,255,255,0.1);
}
.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    background: #181825;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #f38ba8; }
.dot.yellow { background: #f9e2af; }
.dot.green { background: #a6e3a1; }
.code-title { margin-left: 12px; color: rgba(255,255,255,0.5); font-size: 0.8rem; }
.code-body {
    padding: 24px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: #cdd6f4;
    overflow-x: auto;
}
.code-body pre { margin: 0; }
.code-body .kw { color: #cba6f7; }
.code-body .cls { color: #f9e2af; }
.code-body .fn { color: #89b4fa; }
.code-body .cm { color: #6c7086; }

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.95);
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
    box-shadow: var(--shadow-lg);
    animation: float 3s ease-in-out infinite;
    white-space: nowrap;
}
.floating-card i { font-size: 1.1rem; }
.card-1 { bottom: -10px; left: -20px; animation-delay: 0s; }
.card-1 i { color: #22c55e; }
.card-2 { top: 20px; right: -10px; animation-delay: 1s; }
.card-2 i { color: #f59e0b; }
.card-3 { bottom: 40px; right: -30px; animation-delay: 2s; }
.card-3 i { color: var(--primary-light); }

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

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    z-index: 1;
}
.hero-wave svg { width: 100%; height: auto; display: block; }

/* ===== About ===== */
.about { background: var(--bg); }
.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.about-card {
    background: var(--bg-card);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    text-align: center;
}
.about-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}
.about-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(33,150,243,0.1), rgba(0,212,255,0.1));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
    color: var(--primary-light);
}
.about-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.15rem;
    color: var(--primary);
    margin-bottom: 12px;
}
.about-card p { font-size: 0.9rem; color: var(--text-light); }

/* ===== AI Section ===== */
.ai-section { background: var(--bg-light); }

.ai-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}
.metric-card {
    text-align: center;
    background: var(--bg-card);
    padding: 40px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.metric-ring {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
}
.metric-ring svg { transform: rotate(-90deg); width: 100%; height: 100%; }
.ring-bg { fill: none; stroke: #e8edf5; stroke-width: 8; }
.ring-fill {
    fill: none;
    stroke: url(#ringGradient);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 251.2;
    stroke-dashoffset: 251.2;
    transition: stroke-dashoffset 1.5s ease-out;
}
.metric-value {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
}
.metric-card h4 {
    font-family: 'Space Grotesk', sans-serif;
    color: var(--primary);
    margin-bottom: 8px;
    font-size: 1.1rem;
}
.metric-card p { font-size: 0.85rem; color: var(--text-light); }

.ai-capabilities {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.ai-cap-card {
    background: var(--bg-card);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.ai-cap-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}
.ai-cap-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(33,150,243,0.1), rgba(0,212,255,0.1));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-light);
    margin-bottom: 20px;
}
.ai-cap-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 12px;
}
.ai-cap-card p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 16px; }
.ai-cap-list { padding-left: 0; }
.ai-cap-list li {
    font-size: 0.85rem;
    color: var(--text-light);
    padding: 4px 0 4px 20px;
    position: relative;
}
.ai-cap-list li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--primary-light);
    font-size: 0.7rem;
}

/* ===== Services ===== */
.services { background: var(--bg); }
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: var(--bg-card);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}
.service-card.featured {
    border: 2px solid var(--primary-light);
    background: linear-gradient(180deg, rgba(33,150,243,0.03), var(--bg-card));
}
.service-badge {
    position: absolute;
    top: 20px;
    right: -30px;
    background: var(--gradient);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 6px 40px;
    transform: rotate(45deg);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.service-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    color: rgba(33, 150, 243, 0.08);
    line-height: 1;
    margin-bottom: 8px;
}
.service-icon {
    font-size: 2rem;
    color: var(--primary-light);
    margin-bottom: 20px;
}
.service-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 14px;
}
.service-card > p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 24px; line-height: 1.7; }
.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: var(--text);
    border-bottom: 1px solid var(--border);
}
.service-features li:last-child { border-bottom: none; }
.service-features i { color: var(--primary-light); font-size: 0.8rem; }

/* ===== Industries ===== */
.industries { background: var(--bg-light); }
.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.industry-card {
    background: var(--bg-card);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.industry-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.industry-icon {
    font-size: 2.5rem;
    color: var(--primary-light);
    margin-bottom: 20px;
}
.industry-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 12px;
}
.industry-card > p { font-size: 0.9rem; color: var(--text-light); margin-bottom: 20px; }
.industry-card ul li {
    font-size: 0.85rem;
    color: var(--text-light);
    padding: 6px 0 6px 20px;
    position: relative;
}
.industry-card ul li::before {
    content: '\f054';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--primary-light);
    font-size: 0.6rem;
    top: 10px;
}

/* ===== Tech Stack ===== */
.tech-stack { background: var(--dark); padding: 80px 0; }
.tech-stack .section-header h2 { color: white; }
.tech-stack .section-tag { background: rgba(33,150,243,0.2); }
.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.tech-category {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius);
    padding: 24px;
}
.tech-category h4 {
    color: rgba(255,255,255,0.8);
    font-size: 0.9rem;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.tech-category h4 i { color: var(--primary-light); }
.tech-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tech-tags span {
    background: rgba(33, 150, 243, 0.1);
    color: var(--primary-lighter);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(33, 150, 243, 0.15);
    transition: var(--transition);
}
.tech-tags span:hover {
    background: rgba(33, 150, 243, 0.2);
    border-color: var(--primary-light);
}

/* ===== News ===== */
.news { background: var(--bg); }
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.news-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}
.news-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.news-img {
    position: relative;
    height: 180px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
}
.news-placeholder { font-size: 3rem; color: rgba(255,255,255,0.3); }
.news-date {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(0,0,0,0.5);
    color: white;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    backdrop-filter: blur(10px);
}
.news-content { padding: 24px; }
.news-tag {
    display: inline-block;
    background: linear-gradient(135deg, rgba(33,150,243,0.1), rgba(0,212,255,0.1));
    color: var(--primary-light);
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
}
.news-content h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.05rem;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1.4;
}
.news-content p { font-size: 0.85rem; color: var(--text-light); margin-bottom: 16px; line-height: 1.6; }
.news-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-light);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.news-link:hover { gap: 12px; }

/* ===== Contact ===== */
.contact { background: var(--bg-light); }
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.contact-info h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 2.2rem;
    color: var(--primary);
    margin: 16px 0;
    line-height: 1.3;
}
.contact-info > p { color: var(--text-light); margin-bottom: 32px; font-size: 1.05rem; }
.contact-details { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}
.contact-item i {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(33,150,243,0.1), rgba(0,212,255,0.1));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 1.1rem;
    flex-shrink: 0;
}
.contact-item strong { display: block; color: var(--primary); font-size: 0.85rem; margin-bottom: 2px; }
.contact-item span, .contact-item a { color: var(--text-light); font-size: 0.9rem; }
.contact-item a:hover { color: var(--primary-light); }

.contact-form {
    background: var(--bg-card);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 0; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--text);
    background: var(--bg-light);
    transition: var(--transition);
    outline: none;
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group + .btn { margin-top: 16px; }
.contact-form .btn-primary { background: var(--gradient); color: white; font-size: 1rem; padding: 16px 32px; }

/* ===== Footer ===== */
.footer {
    background: var(--dark);
    padding: 60px 0 0;
    color: rgba(255,255,255,0.7);
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand img { margin-bottom: 16px; filter: brightness(2); }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}
.footer-social a:hover {
    background: var(--primary-light);
    color: white;
    border-color: var(--primary-light);
}
.footer-links-col h4 {
    color: white;
    font-size: 0.95rem;
    margin-bottom: 20px;
    font-family: 'Space Grotesk', sans-serif;
}
.footer-links-col ul li { margin-bottom: 10px; }
.footer-links-col a { font-size: 0.85rem; color: rgba(255,255,255,0.5); }
.footer-links-col a:hover { color: var(--primary-light); }
.footer-bottom {
    text-align: center;
    padding: 24px 0;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}

/* ===== Scroll to Top ===== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gradient);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
    z-index: 999;
}
.scroll-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-top:hover { transform: translateY(-4px); }

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; text-align: center; }
    .hero-desc { margin: 0 auto 32px; }
    .hero-buttons { justify-content: center; }
    .hero-visual { display: none; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); max-width: 400px; margin: 0 auto; }
    .about-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-capabilities { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .industries-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(10, 22, 40, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        z-index: 998;
    }
    .nav-links.open { display: flex; }
    .nav-links a { color: white !important; font-size: 1.2rem; }
    .nav-toggle { display: block; z-index: 999; }
    .hero h1 { font-size: 2.2rem; }
    .section-header h2 { font-size: 1.8rem; }
    .section { padding: 70px 0; }
    .about-grid { grid-template-columns: 1fr; }
    .ai-metrics { grid-template-columns: 1fr; max-width: 300px; margin: 0 auto 40px; }
    .ai-capabilities { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-social { justify-content: center; }
    .hero-stats { grid-template-columns: repeat(2, 1fr); }
    .contact-form { padding: 24px; }
}

@media (max-width: 480px) {
    .hero { padding: 100px 0 60px; }
    .hero h1 { font-size: 1.8rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .hero-stats { gap: 12px; }
    .stat-number, .stat-suffix { font-size: 1.5rem; }
}