/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --primary: #2563eb;
    --primary-rgb: 37, 99, 235;
    --primary-dark: #1d4ed8;
    --primary-light: #eff6ff;
    --bg: #ffffff;
    --bg-alt: #f8fafc;
    --bg-dark: #0b1120;
    --text: #1e293b;
    --text-muted: #64748b;
    --heading: #0f172a;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --transition: 0.3s ease;
    --max-w: 1180px;
    --shadow: 0 4px 24px rgba(0,0,0,0.07);
    --shadow-lg: 0 12px 48px rgba(0,0,0,0.1);
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--bg); color: var(--text); line-height: 1.7; overflow-x: hidden; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, textarea, select { font-family: inherit; }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 2rem; }
.section { padding: 5rem 0; }
.section-alt { background: var(--bg-alt); }

/* ===== TOP BAR ===== */
.topbar { background: var(--bg-dark); padding: 0.55rem 0; font-size: 0.76rem; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; }
.topbar-msg { color: #94a3b8; display: flex; align-items: center; gap: 0.5rem; }
.topbar-msg svg { width: 14px; height: 14px; color: #facc15; flex-shrink: 0; }
.topbar-links { display: flex; gap: 1.25rem; }
.topbar-links a { color: #94a3b8; font-weight: 500; transition: color var(--transition); }
.topbar-links a:hover { color: #fff; }

/* ===== NAVBAR ===== */
.navbar { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.96); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.logo { font-size: 1.35rem; font-weight: 800; color: var(--heading); letter-spacing: -0.02em; }
.logo span { color: var(--primary); }
.nav-links { display: flex; align-items: center; gap: 2.25rem; }
.nav-links a { font-size: 0.88rem; font-weight: 500; color: var(--text); transition: color var(--transition); }
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-cta { display: flex; align-items: center; gap: 0.75rem; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav-toggle svg { width: 24px; height: 24px; color: var(--heading); }
.mobile-nav { position: fixed; inset: 0; background: var(--bg); z-index: 200; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2rem; transform: translateX(100%); transition: transform 0.35s ease; }
.mobile-nav.open { transform: translateX(0); }
.mobile-nav a { font-size: 1.15rem; font-weight: 500; color: var(--heading); }
.mobile-nav a:hover { color: var(--primary); }
.mobile-nav-close { position: absolute; top: 1.25rem; right: 1.25rem; background: none; border: none; cursor: pointer; }
.mobile-nav-close svg { width: 28px; height: 28px; color: var(--heading); }

/* ===== BUTTONS ===== */
.btn { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.65rem 1.5rem; border-radius: var(--radius-sm); font-weight: 600; font-size: 0.88rem; border: none; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.25); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.3); }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--border); }
.btn-outline:hover { border-color: var(--primary); background: var(--primary-light); }
.btn-lg { padding: 0.85rem 2rem; font-size: 0.95rem; }
.btn-sm { padding: 0.4rem 1rem; font-size: 0.78rem; }
.btn svg { width: 16px; height: 16px; }

/* ===== SECTION HEADERS ===== */
.sec-label { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 2.5px; color: var(--primary); margin-bottom: 0.75rem; }
.sec-title { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; color: var(--heading); line-height: 1.2; margin-bottom: 1rem; letter-spacing: -0.02em; }
.sec-desc { font-size: 1.05rem; color: var(--text-muted); max-width: 560px; line-height: 1.7; margin-bottom: 3rem; }
.text-center { text-align: center; }
.text-center .sec-desc { margin-left: auto; margin-right: auto; }

/* ===== HERO ===== */
.hero { position: relative; padding: 5.5rem 0 4.5rem; text-align: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg .mesh { position: absolute; inset: 0; background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(37,99,235,0.12) 0%, transparent 60%), radial-gradient(ellipse 60% 50% at 80% 20%, rgba(16,185,129,0.1) 0%, transparent 50%), radial-gradient(ellipse 50% 40% at 20% 30%, rgba(139,92,246,0.08) 0%, transparent 50%); }
.hero-bg .grid-pattern { position: absolute; inset: 0; background-image: linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px); background-size: 60px 60px; mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, black 20%, transparent 60%); -webkit-mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, black 20%, transparent 60%); }
.hero-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.hero-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: var(--primary-light); border: 1px solid rgba(var(--primary-rgb), 0.15); padding: 0.35rem 1rem; border-radius: 100px; font-size: 0.78rem; font-weight: 600; color: var(--primary); margin-bottom: 2rem; }
.hero-badge .dot { width: 6px; height: 6px; background: var(--primary); border-radius: 50%; animation: pulse 2s infinite; }
.hero h1 { font-size: clamp(2.25rem, 5.5vw, 3.25rem); font-weight: 800; line-height: 1.12; color: var(--heading); margin-bottom: 1.25rem; letter-spacing: -0.03em; max-width: 680px; margin-left: auto; margin-right: auto; }
.hero p { font-size: 1.1rem; color: var(--text-muted); max-width: 520px; margin: 0 auto 2.25rem; line-height: 1.7; }
.hero-btns { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }

/* ===== CARDS ===== */
.solutions-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.sol-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 2.25rem; transition: all var(--transition); position: relative; overflow: hidden; }
.sol-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--card-accent, var(--primary)); transform: scaleX(0); transform-origin: left; transition: transform 0.4s ease; }
.sol-card:hover::before { transform: scaleX(1); }
.sol-card:hover { border-color: color-mix(in srgb, var(--card-accent, var(--primary)) 30%, transparent); box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.sol-card:nth-child(1) { --card-accent: #2563eb; }
.sol-card:nth-child(2) { --card-accent: #7c3aed; }
.sol-card:nth-child(3) { --card-accent: #059669; }
.sol-card:nth-child(4) { --card-accent: #0891b2; }
.sol-card:nth-child(5) { --card-accent: #d97706; }
.sol-card:nth-child(6) { --card-accent: #dc2626; }
.sol-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin-bottom: 1.25rem; }
.sol-icon svg { width: 24px; height: 24px; color: var(--primary); }
.sol-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--heading); margin-bottom: 0.5rem; }
.sol-card p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.65; }

/* ===== CTA ===== */
.cta-block { background: var(--bg-dark); border-radius: var(--radius); padding: 4rem 3rem; text-align: center; position: relative; overflow: hidden; }
.cta-block::before { content: ''; position: absolute; top: -40%; right: -10%; width: 500px; height: 500px; background: radial-gradient(circle, rgba(var(--primary-rgb), 0.12) 0%, transparent 60%); border-radius: 50%; }
.cta-block::after { content: ''; position: absolute; bottom: -30%; left: -10%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(16,185,129,0.08) 0%, transparent 60%); border-radius: 50%; }
.cta-block h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); font-weight: 800; color: #fff; margin-bottom: 0.75rem; position: relative; z-index: 1; }
.cta-block p { color: #94a3b8; font-size: 1rem; margin-bottom: 2rem; max-width: 440px; margin-left: auto; margin-right: auto; position: relative; z-index: 1; }
.cta-block .btn { position: relative; z-index: 1; }

/* ===== PAGE HEADER ===== */
.page-header { padding: 5.5rem 0 3rem; text-align: center; background: var(--bg-alt); border-bottom: 1px solid var(--border); }
.page-header h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; color: var(--heading); margin-bottom: 0.5rem; }
.page-header p { color: var(--text-muted); font-size: 1rem; }

/* ===== FORMS ===== */
.form-group { margin-bottom: 1.1rem; }
.form-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text); margin-bottom: 0.35rem; }
.form-input { width: 100%; padding: 0.75rem 1rem; background: var(--bg); border: 1.5px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-size: 0.9rem; transition: all var(--transition); }
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.08); }
textarea.form-input { min-height: 110px; resize: vertical; }
select.form-input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; }

/* ===== FOOTER ===== */
.footer { background: var(--bg-dark); padding: 4.5rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 2.5fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer .logo { color: #fff; font-size: 1.3rem; }
.footer-about { color: #94a3b8; font-size: 0.88rem; margin-top: 1rem; max-width: 280px; line-height: 1.7; }
.footer-col h4 { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: #e2e8f0; margin-bottom: 1rem; }
.footer-col a { display: block; color: #94a3b8; font-size: 0.88rem; padding: 0.3rem 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--primary); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 2rem; border-top: 1px solid #1e293b; }
.footer-bottom p { color: #64748b; font-size: 0.78rem; }
.footer-social { display: flex; gap: 1rem; }
.footer-social a { color: #64748b; transition: color var(--transition); }
.footer-social a:hover { color: var(--primary); }
.footer-social svg { width: 18px; height: 18px; }

/* ===== ANIMATIONS ===== */
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }
.anim { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.anim.visible { opacity: 1; transform: translateY(0); }
.anim-d1 { transition-delay: 0.08s; }
.anim-d2 { transition-delay: 0.16s; }
.anim-d3 { transition-delay: 0.24s; }
.anim-d4 { transition-delay: 0.32s; }
.anim-d5 { transition-delay: 0.4s; }
.anim-d6 { transition-delay: 0.48s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 768px) {
    .section { padding: 4rem 0; }
    .container { padding: 0 1.5rem; }
    .nav-links, .nav-cta { display: none; }
    .nav-toggle { display: block; }
    .topbar-msg { display: none; }
    .hero { padding: 3.5rem 0 3rem; }
    .solutions-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
    .cta-block { padding: 3rem 1.5rem; }
}
@media (max-width: 480px) {
    .container { padding: 0 1rem; }
    .hero { padding: 3rem 0 2.5rem; }
    .hero-btns { flex-direction: column; align-items: stretch; }
    .section { padding: 3rem 0; }
}