/*
 * courses.css — Courses page (dark premium theme)
 * Dashmier Technologies · scoped under body.ql-page
 * Reuses global tokens + the global FAQ accordion. No floating badges.
 */

/* ── Dark page base ─────────────────────────────────────────────────── */
body.ql-page { background: var(--ql-bg); color: #AEB6C6; }
body.ql-page ::selection { background: rgba(124,58,237,0.4); color: #fff; }

.cs { position: relative; }
.cs::before {
  content: ''; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(680px 420px at 82% 0%, rgba(124,58,237,0.18), transparent 60%),
    radial-gradient(600px 420px at 4% 6%, rgba(6,182,212,0.10), transparent 60%);
}
.cs > * { position: relative; z-index: 1; }
.cs h1, .cs h2, .cs h3, .cs h4 { color: #F8FAFC; font-family: var(--font-head); letter-spacing: -0.03em; }

/* ── Shared bits ────────────────────────────────────────────────────── */
.cs-grad { background: linear-gradient(100deg, var(--ql-violet), var(--ql-cyan)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.cs-eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ql-violet);
  background: rgba(124,58,237,0.10); border: 1px solid var(--ql-border); border-radius: var(--r-full); padding: 7px 14px;
}
.cs-btn {
  display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-body); font-weight: 600;
  font-size: 0.95rem; border-radius: var(--r-md); padding: 14px 24px; border: 1px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}
.cs-btn--sm { padding: 11px 18px; font-size: 0.85rem; }
.cs-btn--grad { background: linear-gradient(100deg, var(--ql-purple), var(--ql-violet)); color: #fff; box-shadow: 0 8px 30px rgba(124,58,237,0.35); }
.cs-btn--grad:hover { transform: translateY(-2px); box-shadow: 0 12px 38px rgba(124,58,237,0.5); color: #fff; }
.cs-btn--ghost { background: rgba(255,255,255,0.03); color: #F1F5F9; border-color: rgba(255,255,255,0.12); }
.cs-btn--ghost:hover { background: rgba(255,255,255,0.07); border-color: var(--ql-violet); color: #fff; }
.cs-btn .bi-arrow-right { transition: transform var(--t-fast); }
.cs-btn:hover .bi-arrow-right { transform: translateX(3px); }

/* ── Hero ───────────────────────────────────────────────────────────── */
.cs-hero { position: relative; padding: calc(var(--nav-h) + 70px) 0 70px; overflow: hidden; }
.cs-hero__grid-bg {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 60% 30%, #000, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 60% 30%, #000, transparent 75%);
  opacity: .6; pointer-events: none;
}
.cs-hero__in { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 52px; align-items: center; }
.cs-hero h1 { font-size: clamp(2.3rem, 4.6vw, 3.5rem); font-weight: 900; line-height: 1.1; margin: 20px 0 18px; }
.cs-hero__lead { font-size: 1.06rem; color: #AEB6C6; line-height: 1.75; max-width: 540px; margin-bottom: 30px; }
.cs-hero__cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.cs-hero__stats { display: flex; gap: 28px; flex-wrap: wrap; padding-top: 26px; border-top: 1px solid rgba(255,255,255,0.08); }
.cs-hstat b { font-family: var(--font-head); font-size: 1.4rem; color: #fff; font-weight: 800; display: block; letter-spacing: -0.03em; }
.cs-hstat span { font-size: 0.76rem; color: #6B7280; }
/* entrance */
.cs-hero__text > *, .cs-hero__media { opacity: 0; animation: cs-rise 0.6s ease forwards; }
.cs-hero__text > *:nth-child(1){ animation-delay: 0.05s; }
.cs-hero__text > *:nth-child(2){ animation-delay: 0.13s; }
.cs-hero__text > *:nth-child(3){ animation-delay: 0.21s; }
.cs-hero__text > *:nth-child(4){ animation-delay: 0.29s; }
.cs-hero__text > *:nth-child(5){ animation-delay: 0.37s; }
.cs-hero__media { animation-delay: 0.3s; }
@keyframes cs-rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

/* hero media frame */
.cs-hero__media { position: relative; }
.cs-frame { position: relative; border-radius: 20px; overflow: hidden; border: 1px solid var(--ql-border); box-shadow: 0 30px 80px rgba(0,0,0,0.55); }
.cs-frame img { width: 100%; display: block; height: 380px; object-fit: cover; filter: grayscale(0.3) brightness(0.7); }
.cs-frame__ov { position: absolute; inset: 0; background: linear-gradient(160deg, rgba(124,58,237,0.35), transparent 55%, rgba(7,9,15,0.9)); }
.cs-frame__play { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 64px; height: 64px; border-radius: 50%; background: rgba(255,255,255,0.14); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,0.3); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.4rem; }
.cs-frame__bar { position: absolute; left: 0; right: 0; bottom: 0; padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; }
.cs-frame__bar span { font-size: 0.8rem; color: #E9D5FF; }
.cs-frame__tag { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase; color: #fff; background: rgba(124,58,237,0.55); padding: 5px 11px; border-radius: 8px; }

/* ── Sections ───────────────────────────────────────────────────────── */
.cs-sec { padding: 70px 0; position: relative; }
.cs-sec--alt { background: rgba(255,255,255,0.015); border-top: 1px solid rgba(255,255,255,0.05); border-bottom: 1px solid rgba(255,255,255,0.05); }
.cs-sec-head { text-align: center; max-width: 600px; margin: 0 auto 46px; }
.cs-sec-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); margin: 16px 0 12px; }
.cs-sec-head p { color: #AEB6C6; }

/* ── Delivery modes ─────────────────────────────────────────────────── */
.cs-modes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.cs-mode { position: relative; background: rgba(255,255,255,0.035); border: 1px solid rgba(255,255,255,0.08); border-radius: 18px; padding: 28px; overflow: hidden; transition: transform var(--t-base), border-color var(--t-base), background var(--t-base); }
.cs-mode:hover { background: rgba(255,255,255,0.06); border-color: var(--ql-border); transform: translateY(-4px); }
.cs-mode--star { border-color: var(--ql-violet); }
.cs-mode--star::before { content: ''; position: absolute; inset: 0; background: radial-gradient(400px 160px at 90% 0, rgba(124,58,237,0.16), transparent 60%); pointer-events: none; }
.cs-mode__row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; position: relative; }
.cs-mode__ico { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; color: #fff; background: linear-gradient(135deg, rgba(124,58,237,0.9), rgba(6,182,212,0.7)); box-shadow: 0 8px 24px rgba(124,58,237,0.3); }
.cs-mode__pop { font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; color: #fff; background: linear-gradient(100deg, var(--ql-purple), var(--ql-cyan)); padding: 5px 11px; border-radius: 8px; }
.cs-mode__no { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: #4B5563; }
.cs-mode h3 { font-size: 1.3rem; margin-bottom: 8px; }
.cs-mode__desc { font-size: 0.9rem; color: #AEB6C6; margin-bottom: 18px; line-height: 1.65; }
.cs-mode__list { display: flex; flex-direction: column; gap: 9px; margin-bottom: 22px; }
.cs-mode__list div { display: flex; gap: 9px; align-items: flex-start; font-size: 0.85rem; color: #AEB6C6; }
.cs-mode__list i { color: var(--ql-cyan); margin-top: 3px; flex-shrink: 0; }
.cs-mode__foot { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,0.08); }
.cs-mode__price b { font-family: var(--font-head); font-size: 1.5rem; color: #fff; font-weight: 800; letter-spacing: -0.03em; display: block; }
.cs-mode__price span { font-size: 0.72rem; color: #6B7280; }
.cs-note { text-align: center; margin-top: 26px; font-size: 0.84rem; color: #6B7280; }
.cs-note i { color: var(--ql-cyan); }

/* ── Syllabus ───────────────────────────────────────────────────────── */
.cs-syllabus { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.cs-mod { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; padding: 22px; transition: border-color var(--t-base), background var(--t-base), transform var(--t-base); }
.cs-mod:hover { border-color: var(--ql-border); background: rgba(255,255,255,0.055); transform: translateY(-3px); }
.cs-mod__n { font-family: var(--font-head); font-size: 1.6rem; font-weight: 800; letter-spacing: -0.04em; background: linear-gradient(100deg, var(--ql-violet), var(--ql-cyan)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 10px; }
.cs-mod h4 { font-size: 1.02rem; margin-bottom: 6px; }
.cs-mod p { font-size: 0.84rem; color: #8992A3; line-height: 1.6; margin-bottom: 14px; }
.cs-mod__meta { font-size: 0.75rem; color: #6B7280; }
.cs-mod__meta i { color: var(--ql-violet); margin-right: 4px; }

/* ── Instructors ────────────────────────────────────────────────────── */
.cs-ins-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.cs-ins-intro h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 16px 0 14px; }
.cs-ins-lead { color: #AEB6C6; line-height: 1.75; margin-bottom: 22px; }
.cs-ins-badges { display: flex; flex-wrap: wrap; gap: 9px; }
.cs-pill { display: inline-flex; align-items: center; gap: 7px; font-size: 0.78rem; font-weight: 500; color: #CBD2DE; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--r-full); padding: 8px 14px; }
.cs-pill i { color: var(--ql-violet); }
.cs-ins-cards { display: flex; flex-direction: column; gap: 14px; }
.cs-ins-card { display: flex; gap: 16px; align-items: flex-start; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; padding: 22px; }
.cs-ins-card__av { width: 54px; height: 54px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-family: var(--font-head); font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--ql-purple), var(--ql-cyan)); }
.cs-ins-card__name { font-family: var(--font-head); font-weight: 700; color: #F8FAFC; font-size: 1.02rem; }
.cs-ins-card__role { font-size: 0.8rem; color: var(--ql-violet); margin-bottom: 8px; }
.cs-ins-card__bio { font-size: 0.86rem; color: #8992A3; line-height: 1.65; margin: 0; }

/* ── Testimonials ───────────────────────────────────────────────────── */
.cs-tst-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cs-tst { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; padding: 26px; margin: 0; transition: border-color var(--t-base), transform var(--t-base); }
.cs-tst:hover { border-color: var(--ql-border); transform: translateY(-3px); }
.cs-tst__stars { display: flex; gap: 3px; color: #F59E0B; font-size: 0.82rem; margin-bottom: 14px; }
.cs-tst blockquote { font-size: 0.94rem; color: #CBD2DE; line-height: 1.7; margin: 0 0 18px; }
.cs-tst figcaption { display: flex; align-items: center; gap: 11px; }
.cs-tst__av { width: 40px; height: 40px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-family: var(--font-head); font-weight: 800; font-size: 0.82rem; color: #fff; background: rgba(255,255,255,0.09); }
.cs-tst__name { font-weight: 700; color: #F1F5F9; font-size: 0.86rem; display: block; }
.cs-tst__role { font-size: 0.76rem; color: #6B7280; }

/* ── FAQ (dark, uses global accordion JS) ───────────────────────────── */
.cs-faq { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.cs-faq .faq-item { background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; overflow: hidden; transition: border-color var(--t-base); }
.cs-faq .faq-item.open { border-color: var(--ql-border); }
.cs-faq .faq-btn { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; text-align: left; background: transparent; border: 0; padding: 19px 22px; font-family: var(--font-head); font-size: 1rem; font-weight: 600; color: #F1F5F9; cursor: pointer; }
.cs-faq .faq-btn__icon { flex-shrink: 0; color: var(--ql-violet); font-size: 1.1rem; transition: transform var(--t-base); }
.cs-faq .faq-item.open .faq-btn__icon { transform: rotate(45deg); }
.cs-faq .faq-body { max-height: 0; overflow: hidden; transition: max-height 0.32s var(--ease); }
.cs-faq .faq-body p { padding: 0 22px 22px; margin: 0; font-size: 0.92rem; color: #AEB6C6; line-height: 1.75; }

/* ── CTA ────────────────────────────────────────────────────────────── */
.cs-cta { text-align: center; padding: 60px 30px; border-radius: 26px; border: 1px solid var(--ql-border); background: radial-gradient(600px 300px at 50% 0, rgba(124,58,237,0.22), transparent 65%), #0C1018; }
.cs-cta h2 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); margin: 16px 0 12px; }
.cs-cta p { max-width: 520px; margin: 0 auto 26px; color: #AEB6C6; }
.cs-cta__actions { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  .cs-hero__in { grid-template-columns: 1fr; gap: 36px; }
  .cs-ins-grid { grid-template-columns: 1fr; gap: 32px; }
  .cs-syllabus { grid-template-columns: repeat(2, 1fr); }
  .cs-tst-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .cs-modes { grid-template-columns: 1fr; }
  .cs-syllabus { grid-template-columns: 1fr; }
  .cs-hero { padding-top: calc(var(--nav-h) + 40px); }
  .cs-frame img { height: 280px; }
  .cs-sec { padding: 52px 0; }
}