/*
  File:      assets/style.css
  Purpose:   Shared styles for the Sinnovate Institute website (sinnovateinstitute.ac.tz).
  What it does: Defines brand colour tokens (light + dark), layout, header/footer,
             cards, timetable, forms and utility classes used by every page.
  Created:   2026-10-16
*/

/* ---------- Brand tokens ---------- */
:root{
  --navy:#0B2A5B; --navy-2:#123A78; --gold:#F2B705; --gold-ink:#7A5B00; --green:#1E7B3A;
  --bg:#F6F8FC; --surface:#FFFFFF; --surface-2:#EEF2F9; --ink:#0E1A2B; --muted:#55627A;
  --line:#DCE3EE; --accent:var(--navy); --accent-ink:#fff; --shadow:0 1px 2px rgba(11,42,91,.06),0 8px 24px rgba(11,42,91,.08);
  --radius:14px; --max:1160px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0A1220; --surface:#111C2E; --surface-2:#17243A; --ink:#E8EEF8; --muted:#9AA8BF;
    --line:#22314A; --accent:#F2B705; --accent-ink:#0B2A5B; --gold-ink:#F2B705; --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.35);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0A1220; --surface:#111C2E; --surface-2:#17243A; --ink:#E8EEF8; --muted:#9AA8BF;
  --line:#22314A; --accent:#F2B705; --accent-ink:#0B2A5B; --gold-ink:#F2B705; --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.35);
  color-scheme:dark;
}

/* ---------- Base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 "Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.5vw,3.25rem)}
h2{font-size:clamp(1.5rem,3vw,2.1rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
.muted{color:var(--muted)}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--gold-ink)}
section{padding:56px 0}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:var(--surface);padding:8px 12px;z-index:99}
:focus-visible{outline:3px solid var(--gold);outline-offset:2px;border-radius:6px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:1.05rem}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--navy);display:grid;place-items:center}
.nav-links{display:flex;gap:4px;margin-left:auto;list-style:none;padding:0;margin-top:0;margin-bottom:0}
.nav-links a{text-decoration:none;padding:8px 12px;border-radius:999px;font-weight:600;font-size:.94rem;color:var(--muted)}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--ink);background:var(--surface-2)}
.icon-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);width:38px;height:38px;border-radius:10px;display:grid;place-items:center;cursor:pointer}
.menu-btn{display:none}
@media (max-width:860px){
  .menu-btn{display:grid;margin-left:auto}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--line);padding:8px 16px 16px}
  .nav-links.open{display:flex}
  .nav .btn{display:none}
}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:700;text-decoration:none;border:1px solid transparent;cursor:pointer;font-size:.95rem;transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-gold{background:var(--gold);color:#0B2A5B}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-wa{background:#1FA855;color:#fff}
.btn-sm{padding:8px 14px;font-size:.85rem}

/* ---------- Hero ---------- */
.hero{padding:72px 0 48px;background:radial-gradient(1200px 400px at 80% -10%,color-mix(in srgb,var(--gold) 22%,transparent),transparent),linear-gradient(180deg,var(--surface),var(--bg))}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:56ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}
.trust{display:flex;flex-wrap:wrap;gap:20px;color:var(--muted);font-size:.9rem}
.trust b{color:var(--ink)}
.next-card{background:var(--navy);color:#fff;border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.next-card .eyebrow{color:var(--gold)}
.next-card h3{font-size:1.25rem;margin:8px 0 12px}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:16px 0}
.countdown div{background:rgba(255,255,255,.08);border-radius:12px;padding:10px 4px;text-align:center}
.countdown b{display:block;font-size:1.6rem;font-variant-numeric:tabular-nums}
.countdown span{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;opacity:.8}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.course-card{display:flex;flex-direction:column;gap:10px}
.course-card h3{margin:0}
.course-card .actions{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;padding-top:8px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:999px;background:var(--surface-2);color:var(--muted)}
.chip.gold{background:color-mix(in srgb,var(--gold) 22%,transparent);color:var(--gold-ink)}
.price{font-weight:800;font-size:1.15rem}
.price small{font-weight:600;color:var(--muted);font-size:.8rem}
.feature h3{margin-top:10px}
.feature .ico{width:44px;height:44px;border-radius:12px;background:color-mix(in srgb,var(--gold) 20%,transparent);display:grid;place-items:center;color:var(--gold-ink)}

/* ---------- Section heads ---------- */
.section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.page-head{padding:48px 0 24px;background:linear-gradient(180deg,var(--surface),var(--bg));border-bottom:1px solid var(--line)}

/* ---------- Timetable ---------- */
.tt-tools{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:var(--surface)}
.seg button{border:0;background:transparent;color:var(--muted);padding:7px 14px;border-radius:999px;font-weight:700;cursor:pointer;font-size:.85rem}
.seg button[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
select,input,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%}
.tt-tools select{width:auto}
.session{display:grid;grid-template-columns:88px 1fr auto;gap:18px;align-items:center}
.date-badge{background:var(--navy);color:#fff;border-radius:14px;text-align:center;padding:10px 6px;line-height:1.1}
.date-badge b{display:block;font-size:1.7rem}
.date-badge span{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;opacity:.85}
.session .actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.badge-soon{font-size:.72rem;font-weight:800;color:#fff;background:var(--green);padding:3px 8px;border-radius:999px;margin-left:6px;vertical-align:middle}
@media (max-width:700px){.session{grid-template-columns:72px 1fr}.session .actions{grid-column:1/-1;justify-content:flex-start}}

/* ---------- Course detail ---------- */
.detail{display:grid;grid-template-columns:1fr 340px;gap:32px;align-items:start}
.detail aside{position:sticky;top:84px}
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.checklist li{display:flex;gap:10px}
.checklist li::before{content:"";flex:0 0 20px;height:20px;margin-top:3px;border-radius:50%;background:var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.facts{display:grid;gap:10px;margin:14px 0}
.facts div{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding-bottom:8px;font-size:.92rem}
.facts dt{color:var(--muted);flex:0 0 auto} .facts dd{margin:0;font-weight:700;text-align:right;min-width:0;overflow-wrap:anywhere}
.page-head h1.course-title{font-size:clamp(1.8rem,3.4vw,2.6rem)}
@media (max-width:900px){.detail{grid-template-columns:1fr}.detail aside{position:static}}

/* ---------- Register / steps ---------- */
.steps{counter-reset:s;display:grid;gap:14px;list-style:none;padding:0}
.steps li{counter-increment:s;display:flex;gap:14px;align-items:flex-start}
.steps li::before{content:counter(s);flex:0 0 34px;height:34px;border-radius:50%;background:var(--gold);color:#0B2A5B;font-weight:800;display:grid;place-items:center}
.pay-box{border:2px dashed var(--gold);border-radius:var(--radius);padding:18px;background:color-mix(in srgb,var(--gold) 8%,var(--surface))}
.pay-number{font-size:1.8rem;font-weight:800;letter-spacing:.04em;font-variant-numeric:tabular-nums}
.form-row{display:grid;gap:6px;margin-bottom:14px}
.form-row label{font-weight:700;font-size:.9rem}
.form-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:640px){.form-2{grid-template-columns:1fr}}
.total{display:flex;justify-content:space-between;align-items:center;background:var(--surface-2);border-radius:12px;padding:12px 16px;margin:8px 0 16px}

/* ---------- Testimonials / FAQ ---------- */
.quote{font-size:1rem}
.quote footer{margin-top:12px;display:flex;gap:10px;align-items:center;font-size:.88rem}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-weight:800;font-size:.8rem}
details{border:1px solid var(--line);border-radius:12px;background:var(--surface);padding:14px 18px}
details+details{margin-top:10px}
summary{cursor:pointer;font-weight:700}
details p{margin:10px 0 0;color:var(--muted)}

/* ---------- CTA band & footer ---------- */
.band{background:var(--navy);color:#fff;border-radius:22px;padding:36px;display:flex;justify-content:space-between;gap:24px;align-items:center;flex-wrap:wrap}
.band p{opacity:.85;margin:0}
.site-footer{border-top:1px solid var(--line);padding:40px 0 90px;margin-top:40px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:24px}
.footer-grid a{text-decoration:none;color:var(--muted)} .footer-grid a:hover{color:var(--ink)}
.footer-grid ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
@media (max-width:700px){.footer-grid{grid-template-columns:1fr}}
.fab{position:fixed;right:16px;bottom:16px;z-index:60;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.toast{position:fixed;left:50%;bottom:80px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-weight:700;opacity:0;transition:opacity .2s;pointer-events:none;z-index:70}
.toast.show{opacity:1}
.empty{padding:24px;text-align:center;color:var(--muted)}