/* ==========================================================================
   Alpha Sigma Phi | Mu Chapter | University of Washington
   ========================================================================== */

:root {
  --cardinal: #9d2235;
  --cardinal-deep: #7a1628;
  --cardinal-bright: #c8102e;
  --stone-light: #d8d5cd;
  --paper: #faf8f5;
  --paper-alt: #f2efe9;
  --ink: #14110f;
  --ink-soft: #3a3532;
  --ink-muted: #6b645f;
  --white: #ffffff;

  --serif: "Cormorant Garamond", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --maxw: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --radius: 2px;
  --shadow-sm: 0 1px 3px rgba(20, 17, 15, 0.08), 0 6px 20px rgba(20, 17, 15, 0.05);
  --shadow-md: 0 4px 12px rgba(20, 17, 15, 0.1), 0 18px 48px rgba(20, 17, 15, 0.1);
}

*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.72;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

[hidden] { display: none !important; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Accent text ---------------------------------------------------------- */
.red {
  color: var(--cardinal);
  font-weight: 600;
}

/* ==========================================================================
   Header + tab navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(250, 248, 245, 0.94);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(20, 17, 15, 0.09);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 76px;
  padding-block: 0.75rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}
.brand:hover { text-decoration: none; }

.brand-crest {
  height: 50px;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-name {
  font-family: var(--serif);
  font-size: 1.32rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.brand-sub {
  font-size: 0.66rem;
  letter-spacing: 0.19em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 500;
}

.tabs {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.tab {
  appearance: none;
  border: 0;
  background: transparent;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 0.7rem 1.05rem;
  cursor: pointer;
  border-radius: var(--radius);
  position: relative;
  transition: color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.tab:hover { color: var(--ink); background: rgba(157, 34, 53, 0.06); }
.tab[aria-selected="true"] { color: var(--cardinal); }
.tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 1.05rem; right: 1.05rem;
  bottom: 0.28rem;
  height: 2px;
  background: var(--cardinal);
}
.tab:focus-visible {
  outline: 2px solid var(--cardinal);
  outline-offset: 2px;
}

/* ==========================================================================
   Persistent banner carousel
   ========================================================================== */

.banner {
  position: relative;
  width: 100%;
  height: clamp(340px, 56vh, 560px);
  overflow: hidden;
  background: var(--ink);
  isolation: isolate;
}

.banner-track { position: absolute; inset: 0; }

.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.1s ease-in-out;
  will-change: opacity;
}
.banner-slide.is-active { opacity: 1; }

.banner-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 38%;
}

.banner-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(20, 17, 15, 0.5) 0%, rgba(20, 17, 15, 0.2) 38%, rgba(20, 17, 15, 0.78) 100%);
  z-index: 2;
}

.banner-content {
  position: relative;
  z-index: 3;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: clamp(2.5rem, 6vh, 4rem);
}

.banner-eyebrow {
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 600;
  margin: 0 0 0.9rem;
}

.banner-title {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 1.02;
  font-weight: 700;
  color: var(--white);
  margin: 0 0 0.7rem;
  letter-spacing: -0.01em;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.4);
}

.banner-sub {
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  color: rgba(255, 255, 255, 0.9);
  margin: 0;
  max-width: 40ch;
  font-weight: 400;
}

.banner-dots {
  position: absolute;
  z-index: 4;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
}

.banner-dot {
  appearance: none;
  border: 0;
  padding: 0;
  width: 26px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.32);
  cursor: pointer;
  transition: background 0.25s ease;
}
.banner-dot:hover { background: rgba(255, 255, 255, 0.6); }
.banner-dot.is-active { background: var(--cardinal-bright); }
.banner-dot:focus-visible { outline: 2px solid var(--white); outline-offset: 3px; }

/* Flag ribbon divider under the banner */
.flag-ribbon {
  height: 54px;
  background-image: url("images/flags-band.jpg");
  background-size: cover;
  background-position: center;
  border-bottom: 3px solid var(--cardinal);
  filter: saturate(1.05);
}

/* ==========================================================================
   Tab panels + sections
   ========================================================================== */

.panel { padding-block: clamp(3rem, 7vw, 5.5rem) 1rem; }
.panel[hidden] { display: none; }

.panel-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto clamp(2.5rem, 6vw, 4.5rem);
}

.panel-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cardinal);
  font-weight: 700;
  margin: 0 0 1rem;
}

.panel-title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.05;
  font-weight: 700;
  margin: 0 0 1.1rem;
  letter-spacing: -0.015em;
}

.panel-lede {
  font-size: clamp(1.05rem, 2vw, 1.22rem);
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.68;
}

.rule {
  width: 64px;
  height: 3px;
  background: var(--cardinal);
  margin: 1.6rem auto 0;
  border: 0;
}

/* Alternating image + text rows ---------------------------------------- */

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  margin-bottom: clamp(3.5rem, 8vw, 6rem);
}

.row.reverse .row-media { order: 2; }

.row-media { position: relative; margin: 0; }

.row-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.row-media figcaption {
  font-size: 0.78rem;
  color: var(--ink-muted);
  margin-top: 0.85rem;
  letter-spacing: 0.03em;
  font-style: italic;
}

.row-body h3 {
  font-family: var(--serif);
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  line-height: 1.15;
  font-weight: 700;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}

.kicker {
  font-size: 0.68rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cardinal);
  font-weight: 700;
  margin: 0 0 0.7rem;
  display: block;
}

.row-body p { margin: 0 0 1.1rem; color: var(--ink-soft); }
.row-body p:last-child { margin-bottom: 0; }

/* Stat strip ----------------------------------------------------------- */

.stats {
  background: var(--ink);
  color: var(--white);
  padding-block: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: clamp(3.5rem, 8vw, 6rem);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: clamp(1.75rem, 4vw, 3rem);
  text-align: center;
}

.stat-num {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--white);
  display: block;
  margin-bottom: 0.55rem;
}
.stat-num .unit { color: var(--cardinal-bright); }

.stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.66);
  font-weight: 500;
  line-height: 1.5;
}

/* Card grid ------------------------------------------------------------ */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-bottom: clamp(3.5rem, 8vw, 6rem);
}

.card {
  background: var(--white);
  border: 1px solid rgba(20, 17, 15, 0.08);
  border-top: 3px solid var(--cardinal);
  border-radius: var(--radius);
  padding: 1.9rem 1.7rem;
  box-shadow: var(--shadow-sm);
}

.card h4 {
  font-family: var(--serif);
  font-size: 1.42rem;
  font-weight: 700;
  margin: 0 0 0.65rem;
  line-height: 1.2;
}

.card p { margin: 0; color: var(--ink-soft); font-size: 0.97rem; }

/* Section band --------------------------------------------------------- */

.band {
  background: var(--paper-alt);
  padding-block: clamp(3rem, 7vw, 5rem);
  margin-bottom: clamp(3.5rem, 8vw, 6rem);
  border-block: 1px solid rgba(20, 17, 15, 0.07);
}

.band-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4.4vw, 3rem);
  font-weight: 700;
  margin: 0 0 0.6rem;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.band-intro {
  color: var(--ink-soft);
  max-width: 68ch;
  margin: 0 0 clamp(2rem, 4vw, 3rem);
}

/* Timeline ------------------------------------------------------------- */

.timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 2rem;
  list-style: none;
  border-left: 2px solid var(--stone-light);
}

.timeline li {
  position: relative;
  padding-bottom: 2.4rem;
}
.timeline li:last-child { padding-bottom: 0; }

.timeline li::before {
  content: "";
  position: absolute;
  left: calc(-2rem - 7px);
  top: 0.55rem;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--cardinal);
  border: 2px solid var(--paper);
}

.timeline .year {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--cardinal);
  display: block;
  line-height: 1.2;
  margin-bottom: 0.15rem;
}

.timeline h4 {
  font-size: 1.02rem;
  font-weight: 600;
  margin: 0 0 0.3rem;
  letter-spacing: 0.005em;
}

.timeline p { margin: 0; color: var(--ink-soft); font-size: 0.97rem; }

/* Alumni list ---------------------------------------------------------- */

.alumni {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.35rem 2.2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.alumni li {
  border-top: 1px solid rgba(20, 17, 15, 0.13);
  padding-top: 0.9rem;
}

.alumni .name {
  font-weight: 600;
  display: block;
  font-size: 1.02rem;
  margin-bottom: 0.15rem;
}

.alumni .desc {
  color: var(--ink-muted);
  font-size: 0.92rem;
  line-height: 1.55;
  display: block;
}

/* Majors tags ---------------------------------------------------------- */

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.tags li {
  border: 1px solid rgba(20, 17, 15, 0.16);
  background: var(--white);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  font-size: 0.86rem;
  color: var(--ink-soft);
  font-weight: 500;
}

.tags li.lead {
  background: var(--cardinal);
  border-color: var(--cardinal);
  color: var(--white);
  font-weight: 600;
}

/* ==========================================================================
   Contact
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  margin-bottom: clamp(3.5rem, 8vw, 6rem);
}

.contact-card {
  background: var(--white);
  border: 1px solid rgba(20, 17, 15, 0.09);
  border-radius: var(--radius);
  padding: clamp(1.8rem, 4vw, 2.6rem);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}
.contact-card:last-child { margin-bottom: 0; }

.contact-card h3 {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
}

.contact-role {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cardinal);
  font-weight: 700;
  margin: 0 0 1.4rem;
}

.contact-list { margin: 0; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.75rem 0;
  border-top: 1px solid rgba(20, 17, 15, 0.08);
}
.contact-item:first-child { border-top: 0; padding-top: 0; }

.contact-icon {
  width: 34px; height: 34px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(157, 34, 53, 0.09);
  color: var(--cardinal);
  display: grid;
  place-items: center;
}
.contact-icon svg { width: 17px; height: 17px; }

.contact-meta { min-width: 0; }
.contact-meta .label {
  display: block;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
  line-height: 1.6;
}
.contact-meta .value {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  word-break: break-word;
}
a.value:hover { color: var(--cardinal); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: var(--cardinal);
  color: var(--white);
  font-weight: 600;
  font-size: 0.83rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  padding: 0.95rem 1.7rem;
  border-radius: var(--radius);
  border: 0;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  text-decoration: none;
}
.btn:hover {
  background: var(--cardinal-deep);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--cardinal);
  border: 1.5px solid var(--cardinal);
}
.btn-ghost:hover { background: var(--cardinal); color: var(--white); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 1.6rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.7);
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
  margin-top: clamp(2rem, 5vw, 4rem);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
}
.footer-motto {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #ff8fa0;
  font-weight: 600;
  margin-top: 0.3rem;
}

.footer-links {
  display: flex;
  gap: 1.6rem;
  flex-wrap: wrap;
  font-size: 0.88rem;
}
.footer-links a { color: rgba(255, 255, 255, 0.75); }
.footer-links a:hover { color: var(--white); }

.footer-legal {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.62);
  margin-top: 1.8rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  line-height: 1.6;
}

/* ==========================================================================
   Reveal animation
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .row,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .row.reverse .row-media { order: 0; }
  .row-media img { max-height: 62vh; object-fit: cover; }
}

@media (max-width: 900px) {
  body { font-size: 16px; }

  .header-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    padding-block: 0.7rem;
  }
  .brand { justify-content: center; }
  .tabs {
    justify-content: center;
    gap: 0.15rem;
    overflow-x: auto;
    padding-bottom: 0.2rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { padding: 0.55rem 0.7rem; font-size: 0.7rem; letter-spacing: 0.09em; }
  .tab[aria-selected="true"]::after { left: 0.7rem; right: 0.7rem; }

  .banner { height: clamp(320px, 62vh, 440px); }
  .flag-ribbon { height: 38px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .banner-slide { transition: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover { transform: none; }
}

@media print {
  .site-header, .banner, .banner-dots, .flag-ribbon { display: none; }
  .panel[hidden] { display: block !important; }
}

/* ==========================================================================
   Photo trio grid
   ========================================================================== */

.photo-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
  margin-bottom: clamp(3.5rem, 8vw, 6rem);
}

.photo-trio figure { margin: 0; }

.photo-trio img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s ease;
}
.photo-trio figure:hover img { transform: scale(1.02); }

@media (max-width: 700px) {
  .photo-trio { grid-template-columns: repeat(3, 1fr); gap: 0.5rem; }
  .photo-trio img { aspect-ratio: 3 / 4; }
}

/* Footer crest ------------------------------------------------------------ */
.footer-brand-group {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.footer-crest {
  height: 62px;
  width: auto;
  flex-shrink: 0;
  opacity: 0.92;
}

@media (max-width: 780px) {
  .brand-crest { height: 42px; }
  .footer-crest { height: 52px; }
}

/* Banner pause control ---------------------------------------------------- */
.banner-toggle {
  appearance: none;
  border: 0;
  padding: 0;
  margin-left: 0.5rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  color: var(--white);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.2s ease;
  flex-shrink: 0;
}
.banner-toggle:hover { background: rgba(255, 255, 255, 0.34); }
.banner-toggle:focus-visible { outline: 2px solid var(--white); outline-offset: 3px; }
.banner-toggle svg { width: 12px; height: 12px; fill: currentColor; }

.banner-toggle[data-state="playing"] .icon-play { display: none; }
.banner-toggle[data-state="paused"] .icon-pause { display: none; }

.banner-dots { align-items: center; }