/* The Review NYU — self-contained stylesheet (no framework dependency) */

:root {
  --bg: #0b0f1a;
  --bg-soft: #111726;
  --surface: #ffffff;
  --surface-soft: #f6f7fb;
  --text: #1a2233;
  --text-soft: #56607a;
  --text-invert: #eef1f8;
  --muted-invert: #a9b2c9;
  --border: #e6e9f2;
  --accent: #6b5bff;
  --accent-2: #9b6bff;
  --accent-ink: #4636d6;
  --ok: #16a34a;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 10px 30px rgba(20, 24, 45, 0.08);
  --shadow-lg: 0 24px 60px rgba(20, 24, 45, 0.16);
  --wrap: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--surface);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.22; color: var(--text); font-weight: 750; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.1rem); margin: 0 0 .5em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 1.6em 0 .6em; }
h3 { font-size: 1.32rem; margin: 1.5em 0 .5em; }
h4 { font-size: 1.08rem; margin: 1.2em 0 .4em; }
p { margin: 0 0 1.1em; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 820px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; gap: 18px;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.12rem; color: var(--text); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; display: grid; place-items: center; font-weight: 800; font-size: .95rem;
}
.brand small { display:block; font-size:.62rem; font-weight:600; letter-spacing:.12em; color: var(--text-soft); text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a {
  color: var(--text-soft); font-weight: 600; font-size: .96rem;
  padding: 8px 12px; border-radius: 8px;
}
.nav-links a:hover { color: var(--text); background: var(--surface-soft); text-decoration: none; }
.nav-cta { background: var(--accent); color:#fff !important; padding: 9px 16px !important; border-radius: 999px !important; }
.nav-cta:hover { background: var(--accent-ink); }
.lang-switch { position: relative; }
.lang-switch > button {
  font: inherit; font-size:.9rem; font-weight:600; color: var(--text-soft);
  background: var(--surface-soft); border: 1px solid var(--border); border-radius: 999px;
  padding: 7px 12px; cursor: pointer;
}
.lang-menu {
  position: absolute; right: 0; top: 120%; min-width: 150px;
  background:#fff; border:1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow);
  padding: 6px; display: none;
}
.lang-switch.open .lang-menu { display: block; }
.lang-menu a { display:block; padding:8px 10px; border-radius:7px; color: var(--text); font-size:.92rem; font-weight:600; }
.lang-menu a:hover { background: var(--surface-soft); text-decoration:none; }
.lang-menu a[aria-current="true"] { color: var(--accent-ink); }
.nav-toggle { display:none; margin-left:auto; background:none; border:0; cursor:pointer; padding:8px; }
.nav-toggle span { display:block; width:22px; height:2px; background: var(--text); margin:4px 0; border-radius:2px; }

@media (max-width: 860px) {
  .nav-toggle { display:block; }
  .nav-links {
    position: absolute; left:0; right:0; top: 68px;
    flex-direction: column; align-items: stretch; gap:2px;
    background:#fff; border-bottom:1px solid var(--border); padding: 12px 16px 18px;
    box-shadow: var(--shadow); display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 11px 12px; }
  .nav-cta { text-align:center; margin-top:6px; }
}

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1100px 500px at 15% -10%, rgba(155,107,255,.28), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(107,91,255,.24), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
  color: var(--text-invert);
  padding: 68px 0 76px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.hero h1 { color: #fff; }
.hero .lead { color: var(--muted-invert); font-size: 1.2rem; max-width: 640px; }
.hero .eyebrow {
  display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.14em; text-transform:uppercase;
  color: #cbb8ff; background: rgba(155,107,255,.14); border:1px solid rgba(155,107,255,.3);
  padding: 6px 12px; border-radius: 999px; margin-bottom: 18px;
}
.hero-actions { display:flex; flex-wrap:wrap; gap: 12px; margin-top: 26px; }

/* breadcrumb */
.breadcrumb { list-style:none; display:flex; flex-wrap:wrap; gap:8px; padding:0; margin:0 0 18px; font-size:.86rem; }
.breadcrumb li { color: var(--muted-invert); }
.breadcrumb li a { color: var(--muted-invert); }
.breadcrumb li a:hover { color:#fff; }
.breadcrumb li + li::before { content: "›"; margin-right: 8px; color: rgba(255,255,255,.3); }
.breadcrumb li[aria-current] { color:#fff; }
/* light breadcrumb variant on article pages that start with white hero */

/* ---------- Buttons ---------- */
.btn {
  display:inline-flex; align-items:center; gap:8px; justify-content:center;
  font-weight: 700; font-size: 1rem; padding: 12px 22px; border-radius: 999px;
  cursor: pointer; border: 1px solid transparent; transition: transform .05s ease, background .15s ease;
}
.btn:hover { text-decoration:none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color:#fff; }
.btn-primary:hover { background: var(--accent-ink); color:#fff; }
.btn-ghost { background: rgba(255,255,255,.06); color:#fff; border-color: rgba(255,255,255,.22); }
.btn-ghost:hover { background: rgba(255,255,255,.12); color:#fff; }
.btn-dark { background: var(--text); color:#fff; }
.btn-dark:hover { background:#000; color:#fff; }

/* ---------- Sections ---------- */
section { padding: 0; }
.section { padding: 64px 0; }
.section-soft { background: var(--surface-soft); }
.section-title { text-align:center; max-width: 680px; margin: 0 auto 42px; }
.section-title h2 { margin-top: 0; }
.section-title p { color: var(--text-soft); font-size: 1.08rem; }

.eyebrow-dark {
  display:inline-block; font-size:.72rem; font-weight:700; letter-spacing:.14em; text-transform:uppercase;
  color: var(--accent-ink); margin-bottom: 10px;
}

/* ---------- Cards / grid ---------- */
.grid { display:grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background:#fff; border:1px solid var(--border); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow); height: 100%;
}
.card h3 { margin-top: 0; }
.card .icon {
  width:44px; height:44px; border-radius:12px; display:grid; place-items:center; font-size:1.3rem;
  background: linear-gradient(135deg, rgba(107,91,255,.14), rgba(155,107,255,.14)); margin-bottom: 14px;
}

/* blog cards */
.post-card {
  background:#fff; border:1px solid var(--border); border-radius: var(--radius);
  overflow:hidden; box-shadow: var(--shadow); display:flex; flex-direction:column; height:100%;
  transition: transform .12s ease, box-shadow .12s ease;
}
.post-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.post-card .thumb { aspect-ratio: 16/9; background: linear-gradient(135deg, var(--accent), var(--accent-2)); display:grid; place-items:center; color:#fff; font-weight:800; font-size:1.1rem; text-align:center; padding:18px; }
.post-card .body { padding: 22px; display:flex; flex-direction:column; gap:10px; flex:1; }
.post-card .tag { align-self:flex-start; font-size:.72rem; font-weight:700; text-transform:uppercase; letter-spacing:.08em; color: var(--accent-ink); background: rgba(107,91,255,.1); padding:4px 10px; border-radius:999px; }
.post-card h3 { margin:0; font-size:1.2rem; }
.post-card p { color: var(--text-soft); margin:0; font-size:.98rem; }
.post-card .meta { margin-top:auto; font-size:.84rem; color: var(--text-soft); }

/* ---------- Article ---------- */
.article { padding: 52px 0 72px; }
.article-hero {
  background:
    radial-gradient(900px 400px at 20% -10%, rgba(155,107,255,.26), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg-soft));
  color: var(--text-invert); padding: 54px 0 60px;
}
.article-hero h1 { color:#fff; max-width: 820px; }
.article-hero .lead { color: var(--muted-invert); font-size:1.15rem; max-width: 720px; }
.byline { display:flex; align-items:center; gap:12px; margin-top:20px; color: var(--muted-invert); font-size:.92rem; }
.byline .avatar { width:40px; height:40px; border-radius:999px; background: linear-gradient(135deg,var(--accent),var(--accent-2)); color:#fff; display:grid; place-items:center; font-weight:800; }
.byline b { color:#fff; font-weight:700; }

.prose { max-width: 760px; margin: 0 auto; }
.prose > p, .prose > ul, .prose > ol { color: var(--text); }
.prose ul, .prose ol { padding-left: 1.25em; margin: 0 0 1.2em; }
.prose li { margin-bottom: .5em; }
.prose h2 { padding-top: .2em; }
.prose figure { margin: 1.6em 0; }
.prose figure img { border-radius: var(--radius); border:1px solid var(--border); box-shadow: var(--shadow); }
.prose figcaption { text-align:center; color: var(--text-soft); font-size:.86rem; margin-top:8px; }
.prose blockquote {
  margin: 1.4em 0; padding: 6px 20px; border-left: 4px solid var(--accent);
  color: var(--text-soft); font-style: italic; background: var(--surface-soft); border-radius: 0 8px 8px 0;
}
.callout {
  background: linear-gradient(135deg, rgba(107,91,255,.08), rgba(155,107,255,.08));
  border:1px solid rgba(107,91,255,.25); border-radius: var(--radius); padding: 20px 22px; margin: 1.6em 0;
}
.callout p:last-child { margin-bottom:0; }

/* placeholder image block for missing assets */
.ph-img {
  aspect-ratio: 16/9; border-radius: var(--radius); border:1px dashed var(--border);
  background:
    repeating-linear-gradient(45deg, var(--surface-soft), var(--surface-soft) 12px, #eef0f7 12px, #eef0f7 24px);
  display:grid; place-items:center; color: var(--text-soft); font-size:.86rem; font-weight:600; text-align:center; padding:16px;
}

/* ---------- Table ---------- */
.table-wrap { overflow-x:auto; margin: 1.4em 0; border:1px solid var(--border); border-radius: var(--radius); }
table { border-collapse: collapse; width:100%; font-size:.96rem; }
th, td { text-align:left; padding: 12px 14px; border-bottom:1px solid var(--border); }
thead th { background: var(--surface-soft); font-weight:700; }
tbody tr:last-child td { border-bottom:0; }
tbody tr:nth-child(even) { background: #fafbfe; }

/* ---------- FAQ ---------- */
.faq details {
  border:1px solid var(--border); border-radius: var(--radius-sm); padding: 4px 18px; margin-bottom: 12px; background:#fff;
}
.faq summary { cursor:pointer; font-weight:700; padding: 14px 0; list-style:none; display:flex; justify-content:space-between; gap:12px; }
.faq summary::-webkit-details-marker { display:none; }
.faq summary::after { content:"+"; color: var(--accent-ink); font-weight:800; }
.faq details[open] summary::after { content:"–"; }
.faq details p { padding-bottom: 14px; margin:0; color: var(--text-soft); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color:#fff; border-radius: 20px; padding: 46px 34px; text-align:center; margin: 0 auto;
}
.cta-band h2 { color:#fff; margin-top:0; }
.cta-band p { color: rgba(255,255,255,.9); max-width: 560px; margin: 0 auto 24px; }

/* ---------- Contact form ---------- */
.form { display:grid; gap:16px; max-width: 620px; }
.form label { font-weight:600; font-size:.92rem; display:block; margin-bottom:6px; }
.form input, .form textarea, .form select {
  width:100%; font: inherit; padding: 12px 14px; border:1px solid var(--border); border-radius: 10px; background:#fff; color: var(--text);
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--accent); border-color: transparent; }
.form .row2 { display:grid; grid-template-columns: 1fr 1fr; gap:16px; }
@media (max-width:560px){ .form .row2 { grid-template-columns:1fr; } }

/* ---------- Stats ---------- */
.stats { display:grid; grid-template-columns: repeat(4,1fr); gap: 22px; text-align:center; }
@media (max-width:700px){ .stats { grid-template-columns: 1fr 1fr; } }
.stat b { display:block; font-size: 2.1rem; color: var(--accent-ink); letter-spacing:-.02em; }
.stat span { color: var(--text-soft); font-size:.92rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg); color: var(--muted-invert); padding: 56px 0 30px; margin-top: 20px; }
.footer-grid { display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; }
@media (max-width: 800px){ .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px){ .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color:#fff; font-size:.82rem; letter-spacing:.1em; text-transform:uppercase; margin:0 0 14px; }
.site-footer a { color: var(--muted-invert); display:block; padding: 4px 0; font-size:.95rem; }
.site-footer a:hover { color:#fff; }
.site-footer .brand { color:#fff; margin-bottom: 12px; }
.site-footer .brand .logo { }
.footer-about { font-size:.95rem; max-width: 320px; }
.footer-bottom {
  margin-top: 40px; padding-top: 22px; border-top:1px solid rgba(255,255,255,.08);
  display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; align-items:center; font-size:.86rem;
}
.footer-bottom .disclaimer { color: #7f8aa6; max-width: 640px; }
.footer-langs { display:flex; gap:14px; }
.footer-langs a { display:inline; }