/*
 * FILE: assets/css/style.css
 * PURPOSE: Main design system and reusable components.
 * USED BY: All public pages.
 * CONNECTS TO: header.php, footer.php, animations.css, responsive.css.
 * EDIT HERE: Colors, typography, spacing, cards, buttons and global visual style.
 */

:root {
    --primary: #123B70;
    --primary-dark: #082B52;
    --secondary: #0EA5A8;
    --accent: #20B8C4;
    --light-blue: #EAF5FF;
    --background: #F8FBFF;
    --white: #FFFFFF;
    --text: #172033;
    --muted: #64748B;
    --border: #E2E8F0;
    --success: #16A34A;
    --warning: #F59E0B;
    --danger: #DC2626;
    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 28px;
    --shadow-sm: 0 8px 24px rgba(18,59,112,.08);
    --shadow-md: 0 18px 50px rgba(18,59,112,.12);
    --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background: var(--background);
    line-height: 1.65;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }

h1,h2,h3,h4 {
    font-family: 'Plus Jakarta Sans', sans-serif;
    line-height: 1.12;
    margin: 0 0 18px;
    color: var(--primary-dark);
}
p { margin: 0 0 18px; color: var(--muted); }

.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }

.site-header {
    position: sticky; top: 0; z-index: 1000;
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: .25s ease;
}
.site-header.scrolled { border-color: var(--border); box-shadow: 0 8px 25px rgba(18,59,112,.06); }

.nav-wrap { min-height: 100px; display:flex; align-items:center; justify-content:space-between; gap:20px; }
.brand { display:flex; align-items:center; gap:10px; font-family:'Plus Jakarta Sans'; font-weight:800; color:var(--primary-dark); }
.brand-mark { width:40px; height:40px; display:grid; place-items:center; border-radius:12px; color:white; background:linear-gradient(135deg,var(--primary),var(--secondary)); font-size:12px; letter-spacing:.5px; }
.brand-name { white-space:nowrap; }
.main-nav { display:flex; align-items:center; gap:20px; font-size:14px; font-weight:600; }
.main-nav > a:not(.btn) { color:#3b475a; }
.main-nav > a:not(.btn):hover { color:var(--primary); }

.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:13px 20px; border-radius:12px; font-weight:700; border:1px solid transparent; transition:.25s ease; cursor:pointer; }
.btn-primary { color:white; background:var(--primary); box-shadow:0 10px 22px rgba(18,59,112,.18); }
.btn-primary:hover { transform:translateY(-2px); background:var(--primary-dark); }
.btn-secondary { color:var(--primary); background:white; border-color:var(--border); }
.btn-secondary:hover { transform:translateY(-2px); box-shadow:var(--shadow-sm); }
.nav-cta { margin-left:4px; }

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

/* ---- Nav dropdown (Courses / Admissions submenus) ---- */
.nav-item { position:relative; }
.nav-link-toggle {
    display:flex; align-items:center; gap:5px; border:0; background:none; padding:0;
    color:#3b475a; font:inherit; font-weight:600; cursor:pointer;
}
.nav-link-toggle:hover { color:var(--primary); }
.nav-item .caret { font-size:10px; transition:transform .2s ease; }
.nav-item:hover .caret,
.nav-item.open .caret { transform:rotate(180deg); }

.dropdown-menu {
    position:absolute; top:calc(100% + 16px); left:0; z-index:1100; min-width:220px;
    background:#fff; border:1px solid var(--border); border-radius:14px; padding:8px;
    box-shadow:var(--shadow-md);
    opacity:0; visibility:hidden; transform:translateY(8px); transition:.2s ease;
}
.nav-item:hover .dropdown-menu,
.nav-item.open .dropdown-menu { opacity:1; visibility:visible; transform:translateY(0); }
.dropdown-menu a {
    display:block; padding:10px 12px; border-radius:10px;
    color:#3b475a; font-size:14px; font-weight:600;
}
.dropdown-menu a:hover { background:var(--light-blue); color:var(--primary); }

.hero { position:relative; overflow:hidden; padding:92px 0 80px; background:linear-gradient(135deg,#f7fbff 0%,#eaf5ff 100%); }
.hero::before,.hero::after { content:""; position:absolute; border-radius:50%; filter:blur(2px); pointer-events:none; }
.hero::before { width:420px; height:420px; right:-140px; top:-180px; background:rgba(32,184,196,.14); }
.hero::after { width:300px; height:300px; left:-160px; bottom:-180px; background:rgba(18,59,112,.10); }

.hero-grid { position:relative; z-index:1; display:grid; grid-template-columns:1.05fr .95fr; gap:70px; align-items:center; }
.eyebrow { display:inline-flex; align-items:center; gap:8px; padding:7px 11px; border-radius:999px; background:#fff; border:1px solid #d9eaf7; color:var(--secondary); font-weight:800; font-size:12px; text-transform:uppercase; letter-spacing:.08em; margin-bottom:18px; }
.hero h1 { font-size:clamp(42px,5vw,64px); letter-spacing:-.04em; }
.hero h1 span { color:var(--secondary); }
.hero-copy { max-width:650px; font-size:18px; }
.hero-actions { display:flex; gap:12px; flex-wrap:wrap; margin:28px 0 28px; }

.trust-row { display:flex; gap:12px; flex-wrap:wrap; }
.trust-pill { background:rgba(255,255,255,.8); border:1px solid #dceaf5; padding:10px 13px; border-radius:12px; font-size:13px; font-weight:700; color:var(--primary-dark); }

.hero-visual { position:relative; min-height:480px; display:grid; place-items:center; }
.hero-card { width:min(420px,100%); min-height:410px; border-radius:32px; background:linear-gradient(145deg,var(--primary-dark),var(--primary)); box-shadow:0 30px 70px rgba(8,43,82,.25); position:relative; overflow:hidden; padding:28px; color:#fff; }
.hero-card::before { content:""; position:absolute; width:240px; height:240px; border-radius:50%; right:-80px; top:-80px; background:rgba(32,184,196,.25); }
.hero-card::after { content:""; position:absolute; width:190px; height:190px; border-radius:50%; left:-80px; bottom:-100px; background:rgba(255,255,255,.08); }
.demo-illustration { position:relative; z-index:1; height:235px; display:grid; place-items:center; margin-bottom:18px; }
.demo-person { width:150px; height:150px; border-radius:50%; background:linear-gradient(145deg,#dff8fa,#8edee2); display:grid; place-items:center; color:var(--primary-dark); font-family:'Plus Jakarta Sans'; font-weight:800; font-size:34px; border:8px solid rgba(255,255,255,.22); }
.hero-mini-grid { position:relative; z-index:1; display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.hero-mini { background:rgba(255,255,255,.11); border:1px solid rgba(255,255,255,.15); border-radius:16px; padding:14px; }
.hero-mini strong { display:block; font:800 23px 'Plus Jakarta Sans'; }
.hero-mini span { color:rgba(255,255,255,.76); font-size:12px; }

.section { padding:90px 0; }
.section-head { max-width:720px; margin-bottom:42px; }
.section-head.center { margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2 { font-size:clamp(32px,4vw,46px); letter-spacing:-.03em; }
.section-head p { font-size:17px; }

.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.stat-card { background:#fff; border:1px solid var(--border); border-radius:20px; padding:25px; box-shadow:var(--shadow-sm); }
.stat-number { font:800 36px 'Plus Jakarta Sans'; color:var(--primary); }
.stat-label { color:var(--muted); font-size:14px; margin-top:5px; }

.cards-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.card { background:#fff; border:1px solid var(--border); border-radius:22px; padding:26px; box-shadow:var(--shadow-sm); transition:.25s ease; }
.card:hover { transform:translateY(-5px); box-shadow:var(--shadow-md); }
.icon-box { width:50px; height:50px; display:grid; place-items:center; border-radius:15px; background:var(--light-blue); color:var(--primary); font-weight:800; margin-bottom:20px; }

.split { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.feature-list { list-style:none; margin:0; padding:0; display:grid; gap:14px; }
.feature-list li { display:flex; gap:12px; align-items:flex-start; background:white; border:1px solid var(--border); padding:14px 16px; border-radius:15px; }
.check { flex:0 0 24px; height:24px; border-radius:50%; background:#e8f8ed; color:var(--success); display:grid; place-items:center; font-size:13px; font-weight:800; }

.process { display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.process-card { position:relative; background:#fff; border:1px solid var(--border); padding:24px; border-radius:20px; }
.step { width:42px; height:42px; border-radius:13px; background:var(--primary); color:#fff; display:grid; place-items:center; font-weight:800; margin-bottom:18px; }

.cta-band { padding:58px 0; background:linear-gradient(135deg,var(--primary-dark),var(--primary)); color:#fff; }
.cta-band h2 { color:#fff; }
.cta-band p { color:rgba(255,255,255,.78); }
.cta-inner { display:flex; align-items:center; justify-content:space-between; gap:30px; }

.form-card { background:#fff; border:1px solid var(--border); border-radius:24px; padding:28px; box-shadow:var(--shadow-md); }
.form-grid { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.form-group { display:grid; gap:7px; }
.form-group.full { grid-column:1/-1; }
label { font-size:13px; font-weight:700; color:var(--primary-dark); }
input, select, textarea { width:100%; border:1px solid var(--border); border-radius:12px; padding:13px 14px; outline:none; background:#fff; color:var(--text); }
input:focus,select:focus,textarea:focus { border-color:var(--secondary); box-shadow:0 0 0 4px rgba(245,166,35,.15); }
textarea { min-height:120px; resize:vertical; }

.status-badge { display:inline-flex; padding:5px 9px; border-radius:999px; font-size:11px; font-weight:800; }
.status-open { color:#166534; background:#dcfce7; }
.status-closed { color:#991b1b; background:#fee2e2; }
.status-partial { color:#92400e; background:#fef3c7; }
.status-na { color:#475569; background:#e2e8f0; }

.site-footer { padding:55px 0 0; background:#071f3d; color:#cbd8e7; }
.footer-grid { display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; }
.footer-brand { color:#fff; font:800 22px 'Plus Jakarta Sans'; margin-bottom:10px; }
.site-footer h3 { color:#fff; font-size:15px; }
.site-footer a { display:block; margin:7px 0; color:#cbd8e7; font-size:14px; }
.site-footer a:hover { color:#fff; }
.site-footer p { color:#9fb2c8; font-size:14px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.10); margin-top:40px; padding:18px 0; display:flex; justify-content:space-between; gap:20px; font-size:12px; color:#9fb2c8; }

.floating-actions { position:fixed; right:18px; bottom:18px; z-index:999; display:grid; gap:10px; }
.float-btn { width:52px; height:52px; border-radius:50%; display:grid; place-items:center; color:#fff; font-weight:800; box-shadow:0 14px 30px rgba(0,0,0,.18); }
.float-btn.whatsapp { background:#16a34a; }
.float-btn.call { background:var(--primary); }

.page-hero { padding:70px 0 60px; background:linear-gradient(135deg,#f7fbff,#eaf5ff); }
.page-hero h1 { font-size:clamp(38px,5vw,58px); }
.breadcrumb { font-size:13px; color:var(--muted); margin-bottom:18px; }

.notice { padding:16px 18px; border-left:4px solid var(--warning); background:#fff8e6; border-radius:10px; color:#7c4a03; }
.table-wrap { overflow:auto; background:#fff; border:1px solid var(--border); border-radius:18px; }
table { width:100%; border-collapse:collapse; min-width:700px; }
th,td { padding:15px 16px; border-bottom:1px solid var(--border); text-align:left; vertical-align:top; }
th { background:#f1f7fc; color:var(--primary-dark); font-size:13px; }
td { font-size:14px; color:#475569; }

.form-success { padding:14px 16px; background:#e8f8ed; color:#166534; border-radius:12px; margin-bottom:15px; }
.form-error { padding:14px 16px; background:#fee2e2; color:#991b1b; border-radius:12px; margin-bottom:15px; }