/*
  main.css — SDMIT website
  This is a clean, minimal FOUNDATION only — the spec is explicit that
  visual design will be developed separately. It exists so the content
  architecture above is legible and testable, not as a final UI.

  A few interaction details follow Apple's "fluid interface" principles
  (instant press feedback, no artificial delay, restrained motion)
  since those cost nothing structurally and make the foundation feel
  alive rather than static — see /mnt/skills/plugins/apple-design.
*/

:root {
  --color-primary: #7a1f2b;      /* [UPDATE] placeholder maroon — replace with brand color */
  --color-primary-dark: #5c1620;
  --color-ink: #1b1b1f;
  --color-muted: #5a5a63;
  --color-border: #e4e2df;
  --color-surface: #ffffff;
  --color-bg: #f7f6f4;
  --radius: 10px;
  --container-width: 1180px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.55;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--color-primary); color: #fff;
  padding: 10px 16px; z-index: 1000;
}
.skip-link:focus { left: 10px; top: 10px; }

/* Top bar */
.top-bar { background: var(--color-primary-dark); color: #fff; font-size: 0.85rem; }
.top-bar__inner { display: flex; justify-content: space-between; align-items: center; padding: 6px 20px; flex-wrap: wrap; gap: 6px; }
.top-bar__links { list-style: none; display: flex; gap: 16px; margin: 0; padding: 0; }
.top-bar__links a { color: #fff; opacity: 0.9; }

/* Header */
.site-header { background: var(--color-surface); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 100; }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; gap: 16px; }
.site-header__brand { display: flex; align-items: center; gap: 10px; }
.site-header__logo { border-radius: 8px; }
.site-header__brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.site-header__brand-text strong { font-size: 1.1rem; }
.site-header__brand-text small { color: var(--color-muted); font-size: 0.75rem; }

.nav-toggle { display: none; flex-direction: column; gap: 4px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--color-ink); transition: transform 150ms var(--ease-standard); }

.main-nav__list { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; flex-wrap: wrap; }
.main-nav__item { position: relative; }
.main-nav__link {
  display: inline-flex; align-items: center; gap: 4px; color: var(--color-ink);
  padding: 10px 12px; border-radius: 6px; font-size: 0.92rem; font-weight: 500;
  transition: background 120ms var(--ease-standard);
}
.main-nav__link:hover, .main-nav__item.is-active > .main-nav__link { background: var(--color-bg); text-decoration: none; }
.main-nav__dropdown {
  list-style: none; margin: 0; padding: 8px; position: absolute; left: 0; top: 100%;
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius);
  min-width: 260px; box-shadow: 0 12px 24px rgba(0,0,0,0.08);
  opacity: 0; visibility: hidden; transform: translateY(4px);
  transition: opacity 140ms var(--ease-standard), transform 140ms var(--ease-standard), visibility 140ms;
}
.main-nav__item.has-dropdown:hover .main-nav__dropdown,
.main-nav__item.has-dropdown:focus-within .main-nav__dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.main-nav__dropdown li a { display: block; padding: 8px 10px; border-radius: 6px; font-size: 0.9rem; }
.main-nav__dropdown li a:hover { background: var(--color-bg); text-decoration: none; }

/* Breadcrumbs */
.breadcrumbs { background: var(--color-surface); border-bottom: 1px solid var(--color-border); font-size: 0.85rem; }
.breadcrumbs__list { list-style: none; display: flex; gap: 6px; margin: 0; padding: 10px 0; flex-wrap: wrap; }
.breadcrumbs__list li:not(:last-child)::after { content: '/'; margin-left: 6px; color: var(--color-muted); }

/* Hero + page header */
.hero { background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: #fff; padding: 64px 0; }
.hero h1 { margin: 0 0 8px; font-size: clamp(1.8rem, 4vw, 2.6rem); }
.hero__tagline { opacity: 0.9; margin: 0 0 16px; }
.hero__intro { max-width: 720px; opacity: 0.95; }
.hero__actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }

.page-header { background: var(--color-surface); border-bottom: 1px solid var(--color-border); padding: 32px 0; }
.page-header__title { margin: 0 0 4px; font-size: clamp(1.5rem, 3vw, 2.1rem); }
.page-header__subtitle { color: var(--color-muted); margin: 0; }

/* Buttons */
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: 0.92rem;
  border: 1px solid transparent; cursor: pointer; transition: transform 100ms var(--ease-standard);
}
.btn:active { transform: scale(0.97); }
.btn--primary { background: #fff; color: var(--color-primary); }
.hero .btn--secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn--small { padding: 6px 12px; font-size: 0.8rem; background: var(--color-bg); color: var(--color-ink); border: 1px solid var(--color-border); }
body:not(.hero) .btn--primary, .section .btn--primary { background: var(--color-primary); color: #fff; }

/* Sections / layout helpers */
.section { padding: 40px 0; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; margin-top: 16px; }
.card {
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius);
  padding: 18px; transition: transform 160ms var(--ease-standard), box-shadow 160ms var(--ease-standard);
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,0.06); }
.card__title { margin: 0 0 6px; }
.card__meta { color: var(--color-muted); font-size: 0.85rem; margin: 0 0 8px; }
.card__excerpt { margin: 0 0 10px; }
.section__more { display: inline-block; margin-top: 12px; font-weight: 600; }

.stats-band { background: var(--color-surface); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.stats-band__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 20px; text-align: center; padding: 24px 0; }
.stat-card__value { display: block; font-size: 1.6rem; font-weight: 700; color: var(--color-primary); }
.stat-card__label { display: block; color: var(--color-muted); font-size: 0.85rem; }

.faculty-card__photo { width: 96px; height: 96px; object-fit: cover; border-radius: 50%; margin-bottom: 10px; }
.leadership-profile__grid { display: grid; grid-template-columns: 200px 1fr; gap: 24px; margin: 24px 0; }
.leadership-profile__grid img { border-radius: var(--radius); }

.news-card__image, .event-card { display: flex; }
.news-card { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.news-card__image { width: 100%; height: 150px; object-fit: cover; }
.news-card__body, .event-card__body { padding: 14px; }
.news-card__category, .event-card__category { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-primary); font-weight: 700; }
.event-card { align-items: stretch; }
.event-card__date-badge { background: var(--color-primary); color: #fff; padding: 12px; text-align: center; min-width: 64px; }
.event-card__day { display: block; font-size: 1.3rem; font-weight: 700; }
.event-card__month { display: block; font-size: 0.75rem; text-transform: uppercase; }

.data-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.data-table th, .data-table td { border: 1px solid var(--color-border); padding: 10px 12px; text-align: left; font-size: 0.9rem; }
.data-table thead { background: var(--color-bg); }

.document-list__table { width: 100%; border-collapse: collapse; }
.document-list__empty { color: var(--color-muted); font-style: italic; }

.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-bar a { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--color-border); font-size: 0.85rem; color: var(--color-ink); }
.filter-bar a.is-active, .filter-bar a:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); text-decoration: none; }

.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.gallery-grid__item img { border-radius: var(--radius); height: 160px; width: 100%; object-fit: cover; }
.gallery-grid__item figcaption { font-size: 0.8rem; color: var(--color-muted); margin-top: 6px; }

.logo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 16px; align-items: center; }
.logo-grid__item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 12px; }

.pagination { display: flex; gap: 8px; margin-top: 20px; }
.pagination__link { padding: 6px 12px; border: 1px solid var(--color-border); border-radius: 6px; }
.pagination__link.is-active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.form { display: flex; flex-direction: column; gap: 14px; max-width: 560px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 0.9rem; }
.form input, .form select, .form textarea {
  padding: 10px 12px; border: 1px solid var(--color-border); border-radius: 8px; font: inherit;
  transition: border-color 120ms var(--ease-standard);
}
.form input:focus, .form select:focus, .form textarea:focus { border-color: var(--color-primary); outline: none; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; }
.alert--success { background: #e7f6ec; color: #1e6b3a; }
.alert--error { background: #fbeaea; color: #a3282a; }

.article__image { width: 100%; max-height: 420px; object-fit: cover; border-radius: var(--radius); margin: 16px 0; }
.article__body { max-width: 760px; }

/* Footer */
.site-footer { background: var(--color-ink); color: #d9d9dc; margin-top: 40px; }
.site-footer__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 28px; padding: 48px 20px; }
.site-footer h3 { color: #fff; font-size: 1rem; margin-top: 0; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.site-footer a { color: #cfcfd4; }
.site-footer__map iframe { width: 100%; height: 160px; border: 0; border-radius: 8px; margin-top: 10px; }
.site-footer__bottom { background: #111; }
.site-footer__bottom-inner { padding: 16px 20px; font-size: 0.8rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* Responsive */
@media (max-width: 900px) {
  .two-col { grid-template-columns: 1fr; }
  .leadership-profile__grid { grid-template-columns: 1fr; }
}
@media (max-width: 780px) {
  .nav-toggle { display: flex; }
  .main-nav { display: none; width: 100%; }
  .main-nav.is-open { display: block; }
  .main-nav__list { flex-direction: column; }
  .main-nav__dropdown { position: static; opacity: 1; visibility: visible; transform: none; display: none; box-shadow: none; border: 0; }
  .main-nav__item.is-open .main-nav__dropdown { display: block; }
  .site-header__inner { flex-wrap: wrap; }
}