:root {
  --brown-950: #2b170f;
  --brown-900: #3a2116;
  --brown-800: #5a3321;
  --brown-700: #7a4a2f;
  --green-700: #0f6b54;
  --green-600: #17866a;
  --green-500: #1fa880;
  --orange-500: #cc7a2f;
  --orange-400: #e79a4f;
  --orange-300: #f5c58f;
  --cream: #f9f3ea;
  --paper: #fffaf4;
  --ink: #2a1a12;
  --muted: #7e6355;
  --line: rgba(122, 74, 47, 0.22);
  --shadow: 0 14px 36px rgba(43, 23, 15, 0.18);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Outfit', Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 10%, rgba(31,168,128,.08), transparent 26%),
    radial-gradient(circle at 90% 22%, rgba(231,154,79,.12), transparent 32%),
    linear-gradient(180deg, #f8efe3 0%, var(--cream) 40%, #fef9f2 100%);
}

body.home-page {
  background:
    linear-gradient(180deg, rgba(249,243,234,.84) 0%, rgba(249,243,234,.9) 40%, rgba(254,249,242,.92) 100%),
    url('images/home-wallpaper.jpg') center / cover no-repeat fixed;
}

body.welcome-page {
  background:
    linear-gradient(180deg, rgba(249,243,234,.82) 0%, rgba(249,243,234,.9) 38%, rgba(255,250,244,.94) 100%),
    url('images/welcome-wallpaper.jpg') center / cover no-repeat fixed;
}

body.contact-page {
  background:
    linear-gradient(180deg, rgba(249,243,234,.82) 0%, rgba(249,243,234,.9) 38%, rgba(255,250,244,.94) 100%),
    url('images/contact-wallpaper.jpg') center / cover no-repeat fixed;
}

body.contact-page .panel {
  background: rgba(255,250,244,.94);
}

body.welcome-page .panel {
  background: rgba(255,250,244,.94);
}
a { color: inherit; }

body:not(.home-page) .section .panel {
  background: rgba(255,250,244,.96);
  border: 1px solid rgba(122, 74, 47, 0.18);
}

.container {
  width: min(1160px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(125deg, var(--brown-950), var(--brown-800) 58%, var(--green-700));
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .7rem;
  text-decoration: none;
  color: #fff;
  font-weight: 700;
}
.brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  padding: 2px;
}
.brand small {
  display: block;
  font-weight: 500;
  color: rgba(255,255,255,.75);
}

.menu-toggle {
  display: none;
  border: 1px solid rgba(255,255,255,.24);
  background: transparent;
  color: #fff;
  border-radius: 8px;
  padding: .45rem .6rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: .35rem;
}
.dropdown {
  position: relative;
}
.dropbtn {
  background: transparent;
  border: 0;
  color: rgba(255,255,255,.9);
  font-weight: 600;
  font-size: .9rem;
  padding: .6rem .7rem;
  border-radius: 8px;
  cursor: pointer;
}
.dropbtn:hover,
.dropdown:focus-within .dropbtn,
.dropdown.open .dropbtn {
  background: rgba(255,255,255,.14);
  color: #fff;
}
.dropdown-content {
  position: absolute;
  left: 0;
  top: calc(100% + .35rem);
  min-width: 250px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: .5rem;
  display: none;
}
.dropdown-content a {
  display: block;
  text-decoration: none;
  padding: .62rem .7rem;
  border-radius: 8px;
  color: var(--brown-900);
  font-size: .9rem;
}
.dropdown-content a:hover {
  background: #f3e4d5;
}
.dropdown:hover .dropdown-content,
.dropdown:focus-within .dropdown-content,
.dropdown.open .dropdown-content {
  display: block;
}

.hero {
  background:
    linear-gradient(110deg, rgba(15,107,84,.34), transparent 48%),
    radial-gradient(circle at 90% 20%, rgba(231,154,79,.22), transparent 32%),
    radial-gradient(circle at 10% 80%, rgba(122,74,47,.2), transparent 28%),
    linear-gradient(135deg, var(--brown-900), var(--brown-700));
  color: #fff;
  padding: 4.5rem 0 3.2rem;
}

body.home-page .hero {
  background:
    linear-gradient(135deg, rgba(58,33,22,.9), rgba(90,51,33,.84)),
    radial-gradient(circle at 90% 20%, rgba(231,154,79,.24), transparent 34%),
    radial-gradient(circle at 10% 80%, rgba(122,74,47,.24), transparent 30%);
}
.hero h1 {
  margin: .5rem 0 1rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
}
.hero .eyebrow {
  display: inline-block;
  background: rgba(245,197,143,.2);
  border: 1px solid rgba(245,197,143,.45);
  border-radius: 999px;
  padding: .35rem .75rem;
  font-size: .8rem;
  letter-spacing: .02em;
}
.hero .theme {
  max-width: 860px;
  font-size: 1.05rem;
  color: #fcefe0;
}
.hero-actions {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
}
.btn {
  text-decoration: none;
  border-radius: 10px;
  padding: .75rem 1rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.btn-primary {
  background: linear-gradient(135deg, var(--green-600), var(--green-500));
  color: #fff;
}
.btn-ghost {
  border: 1px solid rgba(255,255,255,.48);
  color: #fff;
}

.countdown {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(75px, 100px));
  gap: .75rem;
}
.countdown .unit {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 12px;
  text-align: center;
  padding: .75rem .4rem;
}
.countdown strong { font-size: 1.35rem; display: block; }
.countdown span { font-size: .74rem; color: #f7dac0; }

.section {
  padding: 2.2rem 0;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
}

body.home-page .card,
body.home-page .supporter-card {
  background: rgba(255,250,244,.92);
}
.card h3 { margin: 0 0 .45rem; color: var(--brown-900); }
.card p { margin: 0; color: var(--muted); font-size: .93rem; }

.supporters-section h2 {
  margin: 0 0 1rem;
  color: var(--brown-900);
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
}

.supporters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.supporter-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .7rem;
}

.supporter-card img {
  width: 100%;
  max-width: 160px;
  height: 85px;
  object-fit: contain;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--line);
  padding: .45rem;
}

.supporter-card h3 {
  margin: 0;
  font-size: .94rem;
  color: var(--brown-900);
}

.page-title {
  background:
    linear-gradient(110deg, rgba(31,168,128,.12), rgba(31,168,128,0) 42%),
    linear-gradient(135deg, #f3e1d0, #faefe3);
  border-bottom: 1px solid var(--line);
}
.page-title .container {
  padding: 1.5rem 0;
}
.page-title h1 {
  margin: 0;
  color: var(--brown-900);
}
.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.panel ul { margin: .4rem 0 .2rem 1rem; }

.registration-overview-panel {
  background: linear-gradient(180deg, #fffaf4, #f7eadc);
}

body.registration-page {
  background:
    radial-gradient(circle at center, rgba(255,255,255,.7) 0%, rgba(255,255,255,0) 56%),
    linear-gradient(180deg, rgba(47,173,225,.16) 0%, rgba(29,133,194,.12) 28%, rgba(245,230,204,.86) 54%, #fcf6ef 100%),
    url('images/registration-logo-bg.jpg') center 120px / min(68vw, 520px) no-repeat fixed;
}

body.registration-page .topbar {
  background: linear-gradient(135deg, #2b170f, #5a3321, #2a5a70);
}

body.registration-page .btn-primary {
  background: linear-gradient(135deg, var(--brown-900), var(--brown-700));
}

body.registration-page .btn-ghost {
  border: 1px solid rgba(58,33,22,.35);
  color: var(--brown-900);
  background: #fff8f0;
}

body.registration-page .quick-link-secondary:hover,
body.registration-page .btn-ghost:hover {
  background: #f1dfcb;
}

.registration-portal-title-panel {
  background: linear-gradient(145deg, #f7e9d9, #f4dfc9);
  border-color: rgba(90,51,33,.26);
}

.registration-flier-hero {
  background:
    linear-gradient(130deg, rgba(18,98,144,.88), rgba(18,98,144,.72) 34%, rgba(18,131,98,.74) 72%, rgba(221,53,58,.82)),
    url('images/conference-flier.png') center / cover no-repeat;
  color: #fff;
  border-color: rgba(255,255,255,.28);
}

.registration-flier-hero h2 {
  margin: .2rem 0 .55rem;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
}

.registration-tag {
  margin: 0;
  display: inline-flex;
  padding: .28rem .7rem;
  border-radius: 999px;
  background: rgba(255,220,48,.2);
  border: 1px solid rgba(255,220,48,.54);
  color: #fff6ae;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .03em;
}

.registration-meta {
  margin: .4rem 0 0;
  color: #f5f6ff;
  font-size: .92rem;
}

.registration-flier-layout {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 1rem;
}

.registration-side-stack {
  display: grid;
  gap: 1rem;
}

.registration-layout {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 1rem;
  align-items: start;
}

.registration-layout .panel {
  margin-bottom: 0;
}

.register-form-panel {
  grid-column: 1;
}

.docs-panel,
.submission-links-panel,
.deadlines-panel,
.ai-panel,
.quick-links-panel {
  grid-column: 2;
}

.registration-overview-panel,
.registration-access-panel,
.payment-panel {
  grid-column: 1;
}

body.registration-page .submission-form input {
  background: #fffdf9;
}

body.registration-page .register-form-panel,
body.registration-page .payment-panel,
body.registration-page .deadlines-panel,
body.registration-page .docs-panel,
body.registration-page .quick-links-panel {
  background: rgba(255,249,240,.95);
  border-color: rgba(90,51,33,.24);
}

body.submission-page,
body.certificate-page {
  background:
    linear-gradient(180deg, rgba(47,173,225,.14) 0%, rgba(245,230,204,.86) 46%, #fcf6ef 100%),
    url('images/sst-gaposa-logo.jpg') center / min(62vw, 540px) no-repeat fixed;
}

body.submission-page .topbar,
body.certificate-page .topbar {
  background: linear-gradient(135deg, #2b170f, #5a3321, #2a5a70);
}

body.submission-page .panel,
body.certificate-page .panel {
  background: rgba(255,249,240,.95);
  border-color: rgba(90,51,33,.24);
}

.portal-hero-panel {
  background:
    linear-gradient(135deg, rgba(18,98,144,.88), rgba(18,131,98,.76) 64%, rgba(221,53,58,.8));
  color: #fff;
}

.portal-hero-panel h2 {
  margin-top: 0;
}

.portal-hero-panel p {
  color: #ecf6ff;
}

.certificate-form-panel .submission-status {
  color: var(--muted);
  font-weight: 500;
}

.registration-info-grid {
  margin-top: .8rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: .75rem;
}

.registration-info-item {
  background: rgba(255,255,255,.86);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .7rem .8rem;
  display: flex;
  flex-direction: column;
  gap: .3rem;
}

.registration-info-item strong {
  color: var(--brown-900);
}

.registration-info-item span {
  color: var(--muted);
  font-size: .92rem;
}

.submission-form {
  display: grid;
  gap: .8rem;
}

.submission-form label {
  display: grid;
  gap: .35rem;
  font-weight: 500;
  color: var(--brown-900);
}

.submission-form input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .62rem .7rem;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

.submission-status {
  margin: 0;
  color: var(--brown-900);
  font-weight: 600;
}

.dashboard-nav-panel {
  background: linear-gradient(180deg, #fffaf4, #f7eadc);
}

.dashboard-summary {
  margin: .8rem 0;
  font-weight: 600;
  color: var(--brown-900);
}

.social-links {
  display: grid;
  gap: .55rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  text-decoration: none;
  color: var(--brown-900);
  font-weight: 600;
}

.social-icon {
  width: 1.7rem;
  height: 1.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  font-size: .95rem;
}

.admin-controls {
  display: grid;
  gap: .7rem;
}

.admin-controls label {
  display: grid;
  gap: .35rem;
  color: var(--brown-900);
}

.admin-controls input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: .62rem .7rem;
  font: inherit;
}

.dashboard-table-wrap {
  overflow-x: auto;
}

.dashboard-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 780px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

.dashboard-table th,
.dashboard-table td {
  text-align: left;
  padding: .65rem .7rem;
  border-bottom: 1px solid var(--line);
  font-size: .9rem;
}

.dashboard-table th {
  background: #f3e4d5;
  color: var(--brown-900);
}

.welcome-intro-layout {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 1.2rem;
  align-items: start;
}

.conference-flier {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: .75rem;
  box-shadow: var(--shadow);
}

.conference-flier img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

.conference-flier figcaption {
  margin-top: .7rem;
  display: flex;
  justify-content: center;
}

.subthemes-block {
  margin-top: 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: .85rem 1rem;
}

.subthemes-block h3 {
  margin: 0 0 .65rem;
  color: var(--brown-900);
}

.subthemes-list {
  margin: 0;
  padding-left: 1.1rem;
  columns: 2;
  column-gap: 1.5rem;
}

.subthemes-list li {
  margin: 0 0 .42rem;
  break-inside: avoid;
}

.welcome-rector-layout {
  display: grid;
  grid-template-columns: minmax(210px, 320px) 1fr;
  gap: 1.2rem;
  align-items: start;
}

.welcome-rector-panel {
  background: linear-gradient(180deg, #fffaf4, #fdf2e6);
}

.speaker-profile-layout {
  margin-bottom: 1rem;
  padding: .8rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.speaker-profile-layout h3 {
  margin-top: 0;
}

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1rem;
}

.leadership-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: .7rem;
  background: #fff;
  text-align: center;
}

.leadership-card img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.leadership-card figcaption {
  margin-top: .55rem;
  font-weight: 600;
  color: var(--brown-900);
}

.rector-photo {
  margin: 0;
}

.rector-photo img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.resource-dropdown {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: .8rem 1rem;
}

.resource-dropdown summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--brown-900);
}

.resource-dropdown ul {
  margin-top: .7rem;
}

.resource-dropdown a {
  color: var(--brown-900);
  text-decoration: none;
}

.resource-dropdown a:hover {
  text-decoration: underline;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.quick-link-secondary {
  border: 1px solid var(--line);
  color: var(--brown-900);
  background: #fff;
}

.quick-link-secondary:hover {
  background: #f3e4d5;
}

.footer {
  margin-top: 2rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .9rem;
}

@media (max-width: 900px) {
  body.home-page {
    background-attachment: scroll;
  }

  body.contact-page {
    background-attachment: scroll;
  }

  body.welcome-page {
    background-attachment: scroll;
  }

  .welcome-rector-layout {
    grid-template-columns: 1fr;
  }

  .welcome-intro-layout {
    grid-template-columns: 1fr;
  }

  .subthemes-list {
    columns: 1;
  }

  .registration-layout {
    grid-template-columns: 1fr;
  }

  .registration-flier-layout {
    grid-template-columns: 1fr;
  }

  .register-form-panel,
  .docs-panel,
  .submission-links-panel,
  .deadlines-panel,
  .ai-panel,
  .quick-links-panel,
  .registration-overview-panel,
  .registration-access-panel,
  .payment-panel {
    grid-column: auto;
  }

  .menu-toggle { display: inline-flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 1rem;
    right: 1rem;
    background: var(--brown-900);
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 12px;
    padding: .5rem;
    flex-direction: column;
    align-items: stretch;
    max-height: calc(100vh - 84px);
    overflow-y: auto;
  }
  .main-nav.open { display: flex; }
  .dropdown-content {
    position: static;
    min-width: unset;
    margin-top: .35rem;
    box-shadow: none;
    background: rgba(255,255,255,.97);
  }
}

@media (max-width: 620px) {
  body.registration-page {
    background-attachment: scroll;
  }

  body.submission-page,
  body.certificate-page {
    background-attachment: scroll;
  }

  .container {
    width: min(1160px, calc(100% - 1.2rem));
  }

  .hero {
    padding: 3.5rem 0 2.6rem;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .countdown {
    grid-template-columns: repeat(2, minmax(90px, 1fr));
    max-width: 100%;
  }

  .supporters-grid {
    grid-template-columns: repeat(2, minmax(130px, 1fr));
  }

  .panel {
    padding: .85rem;
  }

  .quick-links .btn {
    width: 100%;
    justify-content: center;
  }

  .dashboard-table {
    min-width: 620px;
  }
}