:root {
  --green-dark: #2D463D;
  --green-mid: #3D5A4E;
  --green-light: #5B8A72;
  --green-glow: rgba(91,138,114,0.12);
  --gold: #C4A265;
  --gold-light: #E0C88A;
  --gold-glow: rgba(196,162,101,0.25);
  --bg: #F8F6F1;
  --card: #ffffff;
  --border: #E5E0D8;
  --text: #2D3436;
  --text-soft: #4A5568;
  --text-muted: #718096;
  --ai-tech-blue: #3182CE;
  --header-max-width: 1040px;
}

*{margin:0;padding:0;box-sizing:border-box}
:lang(ko){word-break:keep-all}
html{scroll-behavior:smooth;overflow-y:scroll;font-size:18px} /* Increased root size */

body {
  font-family: 'Inter', 'Noto Sans KR', -apple-system, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7; /* Breathing room */
  -webkit-font-smoothing: antialiased;
}

/* ===========================
   Layout Templates
   =========================== */
body[data-layout-template] {
  --layout-max-width: 1040px;
  --layout-side-gutter: 16px;
}
body[data-layout-template="wide"] { --layout-max-width: 1040px; }
body[data-layout-template="standard"] { --layout-max-width: 1040px; }
body[data-layout-template="narrow"] { --layout-max-width: 1040px; }

/* Keep top-level sections centered by template without touching overlays/nav bars */
body[data-layout-template] > :not(script):not(style):not(.topbar):not(#publicTopbar):not(.mobile-menu-overlay):not(.site-footer):not(footer):not(.tab-bar):not(.tab-bar-wrap):not(.modal):not(.fb-float-btn):not(.fb-overlay):not(.toast):not(.no-layout-wrap) {
  width: min(calc(100% - (var(--layout-side-gutter) * 2)), var(--layout-max-width));
  margin-left: auto;
  margin-right: auto;
}

/* ===========================
   Unified Global Header (Premium)
   =========================== */
/* Reserve header space before shared.js injects content to prevent CLS on page transitions. */
#publicTopbar {
  min-height: 64px;
}

.topbar {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(248, 246, 241, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  width: 100%;
  height: 64px;
  display: flex; align-items: center; justify-content: center;
}
.topbar-inner {
  width: 100%;
  max-width: var(--header-max-width);
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(180px, auto) 1fr minmax(180px, auto);
  align-items: center;
  column-gap: 8px;
}
.topbar-inner .nav-links-desktop {
  position: static;
  transform: none;
  justify-self: center;
  pointer-events: auto;
}
.topbar-inner .nav-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  min-width: 180px;
}
.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1;
  min-width: 180px;
}
.nav-logo img { display: block; flex: 0 0 auto; }
.nav-logo span { display: inline-flex; align-items: center; line-height: 1; }
.nav-links-desktop { display: flex; gap: 12px; align-items: center; }
.nav-links-desktop a {
  text-decoration: none; font-size: 14.5px; font-weight: 700; color: var(--text-soft);
  transition: all 0.2s; position: relative; padding: 4px 0;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
}
.nav-links-desktop a:hover { color: var(--green-dark); }
.nav-links-desktop a.active { color: var(--green-dark); }
.nav-links-desktop a.active::after {
  content: ""; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--green-light); border-radius: 99px;
}

.nav-right { display: flex; align-items: center; gap: 16px; }
.lang-toggle-minimal { display: flex; border: 1.5px solid var(--border); border-radius: 8px; overflow: hidden; background: #fff; }
.lang-toggle-minimal button {
  padding: 6px 14px; border: none; background: transparent; font-size: 13px; font-weight: 800;
  cursor: pointer; color: var(--text-muted); transition: all 0.2s; font-family: inherit;
}
.lang-toggle-minimal button.active { background: var(--green-light); color: #fff; }
.lang-toggle-minimal button:hover:not(.active) { background: #F0EDE7; color: var(--text); }

.btn-login-small {
  padding: 8px 18px; border: 2px solid var(--green-light); border-radius: 12px;
  font-size: 15px; font-weight: 700; color: var(--green-dark); text-decoration: none;
  transition: all 0.2s; font-family: inherit;
  min-width: 104px;
  justify-content: center;
  display: inline-flex;
}
.btn-login-small:hover { background: var(--green-light); color: #fff; }

/* ── AI Core Highlights ── */
.ai-core-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px; border-radius: 6px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: #fff; font-size: 13px; font-weight: 800; letter-spacing: 0.5px;
  box-shadow: 0 2px 6px var(--gold-glow);
}
.ai-card-glow {
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
}
.ai-card-glow:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px var(--gold-glow);
  border-color: var(--gold);
}

/* ── Common Layout Blocks ── */
.container { max-width: var(--layout-max-width, 1160px); margin: 0 auto; padding: 32px 24px; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 24px; margin: 20px 0; box-shadow: 0 4px 12px var(--green-glow); }
.btn-primary,.btnPrimary { background: linear-gradient(135deg, var(--green-light), var(--green-mid)); color: #fff; border: none; border-radius: 14px; padding: 12px 24px; font-weight: 700; cursor: pointer; transition: all 0.2s; }
.btn-primary:hover,.btnPrimary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--green-glow); }

/* ── Hamburger button (default hidden, shown via media queries below) ── */
.hamburger-btn {
  display: none; background: none; border: none; font-size: 24px; color: var(--green-dark); cursor: pointer; padding: 4px;
}

@media (max-width: 768px) {
  .nav-links-desktop { display: none; }
  .container { padding: 20px 16px; }
  .topbar-inner {
    padding: 0 12px;
    grid-template-columns: minmax(0, 1fr) auto;
    column-gap: 8px;
  }
  .nav-logo { min-width: 0; gap: 8px; min-height: 44px; }
  .nav-logo span { display: none; }
  .nav-logo img { height: 28px !important; }
  .topbar-inner .nav-right { min-width: 0; gap: 6px; }
  .lang-toggle-minimal button { padding: 5px 8px; font-size: 12px; min-height: 36px; }
  .btn-login-small { display: none; }
  .hamburger-btn { display: block; }
}

/* Tablet / small laptop: switch to hamburger before menu text starts wrapping */
@media (max-width: 1180px) {
  .nav-links-desktop,
  .topbar-inner .nav-links-desktop {
    display: none;
  }
  .hamburger-btn { display: block; }
  .topbar-inner { grid-template-columns: auto 1fr auto; }
  .topbar-inner .nav-right,
  .nav-logo { min-width: 0; }
  .topbar-inner { padding: 0 14px; }
  .topbar-inner .nav-right { gap: 10px; }
  .lang-toggle-minimal button { padding: 6px 10px; }
  .btn-login-small { padding: 7px 14px; font-size: 14px; }
}

/* ── Mobile Menu Overlay ── */
.mobile-menu-overlay {
  display: none;
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(45, 70, 61, 0.4); backdrop-filter: blur(4px);
  z-index: 2000; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
  overflow: hidden;
}
.mobile-menu-overlay.active { display: block; opacity: 1; pointer-events: all; }

.mobile-menu-inner {
  position: absolute; top: 0; right: 0; width: 280px; height: 100%;
  background: #ffffff; box-shadow: -4px 0 24px rgba(0,0,0,0.15);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 64px 24px; display: flex; flex-direction: column; gap: 24px;
  overflow-y: auto;
}
.mobile-menu-overlay.active .mobile-menu-inner { transform: translateX(0); }

.mobile-menu-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: none; font-size: 20px; color: var(--text-soft); cursor: pointer;
}
.mobile-nav-links { display: flex; flex-direction: column; gap: 16px; }
.mobile-nav-links a {
  text-decoration: none; font-size: 18px; font-weight: 700; color: var(--text); padding: 12px 0; border-bottom: 1px solid var(--border);
}
.mobile-nav-links a:last-child { border-bottom: none; }

/* i18n toggle */
.lang-toggle{display:flex;gap:6px;align-items:center}
.lang-toggle button{background:#fff;color:#8B9A9C;border:1.5px solid #DDD8D0;padding:6px 14px;border-radius:999px;font-weight:500;font-size:13px}
.lang-toggle button.active{background:#5B8A72;color:#fff;border-color:#5B8A72}
.lang-toggle button:hover:not(.active){background:#F0EDE7;color:#2D3436}
.header-center{text-align:center;margin-bottom:12px}
.header-center img{max-height:100px;object-fit:contain}
.header-center .title{font-size:26px;font-weight:700;margin-top:6px;color:#2D3436}
.header-center .subtitle{color:#8B9A9C;margin-top:4px}
.login-card{position:relative}
.login-build{
  position:absolute;
  right:12px;
  bottom:8px;
  margin:0;
  font-size:10px;
  line-height:1;
  color:#B8B0A4;
  background:transparent;
  border:none;
  border-radius:0;
  padding:0;
}

/* ===========================
   Dashboard / Admin Utilities
   =========================== */
input,select,button,textarea{padding:10px 12px;border:1.5px solid #DDD8D0;border-radius:12px;font-family:inherit;font-size:14px;transition:border-color .2s,box-shadow .2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:#5B8A72;box-shadow:0 0 0 3px rgba(91,138,114,0.12)}
button{cursor:pointer;background:#5B8A72;color:#fff;border:none;font-weight:600;letter-spacing:.2px}
button:hover{background:#4A7560}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.muted{color:#8B9A9C}
table{width:100%;border-collapse:collapse}
th,td{padding:10px;border-bottom:1px solid #EDE9E3;text-align:left;vertical-align:top}
th{font-weight:600;color:#4A5568;font-size:13px;text-transform:uppercase;letter-spacing:.3px}
.btnLight{background:#fff;color:#2D3436;border:1.5px solid #DDD8D0;font-weight:500}
.btnLight:hover{background:#F0EDE7;border-color:#C4A265;color:#2D3436}
.btnLight.active{background:#5B8A72;color:#fff;border-color:#5B8A72}
.pill{display:inline-block;padding:2px 10px;border:1px solid #DDD8D0;border-radius:999px;font-size:12px;color:#8B9A9C;font-weight:500}
code{background:#F0EDE7;padding:2px 6px;border-radius:8px;font-size:13px}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
/* Tab / Panel system (admin & dashboard pages) */
.tab-btn{padding:8px 16px;border:none;border-radius:12px;background:transparent;color:#8B9A9C;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s}
.tab-btn:hover{background:#F0EDE7;color:#2D3436}
.tab-btn.active{background:#5B8A72;color:#fff}
.tab-panel{display:none;padding:0 24px}
.tab-panel.active{display:block}
.tab-panel>*:not(iframe){max-width:var(--layout-max-width, 1160px);margin-left:auto;margin-right:auto}
@media(max-width:768px){.tab-panel{padding:0 12px}}
.sub-panel{display:none}
.sub-panel.active{display:block}

/* ===========================
   Markdown Content Styling
   =========================== */

.markdown-content{font-size:16px;line-height:1.85;color:#2D3436;max-width:100%;word-wrap:break-word}
.markdown-content h1{font-size:26px;font-weight:700;margin:28px 0 16px 0;color:#2D3436;border-bottom:2px solid #5B8A72;padding-bottom:10px}
.markdown-content h2{font-size:22px;font-weight:600;margin:22px 0 12px 0;color:#3D5A4E}
.markdown-content h3{font-size:18px;font-weight:600;margin:18px 0 10px 0;color:#4A5568}
.markdown-content p{margin:12px 0;font-size:16px}
.markdown-content ul,.markdown-content ol{margin:16px 0;padding-left:32px}
.markdown-content li{margin:8px 0;line-height:1.85}
.markdown-content li>p{margin:4px 0}
.markdown-content ul ul,.markdown-content ol ol,.markdown-content ul ol,.markdown-content ol ul{margin:8px 0}
.markdown-content code{background:#F0EDE7;padding:2px 6px;border-radius:6px;font-family:'Monaco','Courier New',monospace;font-size:14px;color:#5B8A72}
.markdown-content pre{background:#FAF9F6;border:1px solid #E5E0D8;border-radius:10px;padding:18px;overflow-x:auto;margin:16px 0}
.markdown-content pre code{background:none;padding:0;color:#2D3436;font-size:14px}
.markdown-content blockquote{border-left:4px solid #5B8A72;margin:16px 0;padding:14px 20px;background:#F0F7F3;border-radius:0 10px 10px 0;color:#3D5A4E}
.markdown-content blockquote p:first-child{margin-top:0}
.markdown-content blockquote p:last-child{margin-bottom:0}
.markdown-content table{border-collapse:collapse;width:100%;margin:16px 0;border:1px solid #E5E0D8;border-radius:10px;overflow:hidden}
.markdown-content th,.markdown-content td{padding:12px;text-align:left;border-bottom:1px solid #EDE9E3}
.markdown-content th{background:#F0EDE7;font-weight:600;color:#4A5568}
.markdown-content tr:last-child td{border-bottom:none}
.markdown-content img{max-width:100%;height:auto;border-radius:12px;margin:16px 0;box-shadow:0 2px 12px rgba(45,52,54,0.08);display:block}
.markdown-content hr{border:none;border-top:2px solid #E5E0D8;margin:28px 0}
.markdown-content a{color:#5B8A72;text-decoration:none;border-bottom:1px solid rgba(91,138,114,0.3);transition:all 0.2s}
.markdown-content a:hover{color:#3D5A4E;border-bottom-color:#3D5A4E}

/* ===========================
   Math Styling (KaTeX)
   =========================== */

.markdown-content .katex{font-size:1.1em}
.markdown-content .katex-display{margin:20px 0;padding:18px;background:#FAF9F6;border-radius:10px;overflow-x:auto;overflow-y:hidden}
.markdown-content .math-error{color:#C0564A;background:#FDF0EE;padding:2px 6px;border-radius:6px;font-family:monospace;cursor:help}

/* ===========================
   Assignment Card Styling
   =========================== */

.assignment-card{background:#fff;border:1px solid #E5E0D8;border-radius:16px;padding:18px;margin-bottom:20px;box-shadow:0 2px 8px rgba(91,138,114,0.06)}
.assignment-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;padding-bottom:14px;border-bottom:2px solid #F0EDE7}
.assignment-header h3{margin:0;font-size:18px;color:#2D3436;font-weight:600}
.status-badge{padding:5px 14px;border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap}
td.col-date,th.col-date{white-space:nowrap}
.status-badge.done{background:#E8F5EE;color:#3D7A56}
.status-badge.pending{background:#FFF8E6;color:#9A7B2C}
.status-badge.missing{background:#FDF0EE;color:#C0564A}
.assignment-note{background:#FFF8E6;border-left:4px solid #C4A265;padding:12px 16px;margin-bottom:16px;border-radius:0 10px 10px 0;font-size:14px;color:#7A6530}
.assignment-content{margin-bottom:16px;min-height:40px}
.assignment-answer{margin-bottom:16px;padding:14px;background:#F0F7F3;border:1px solid #D5E5DC;border-radius:12px}
.assignment-answer h4{margin:0 0 10px 0;font-size:15px;color:#3D5A4E;font-weight:600}
.assignment-answer-locked{background:#F8F6F1;border-color:#E5E0D8}
.answer-choice{
  width:36px;height:36px;border-radius:8px;border:2px solid #D5E0DC;background:#fff;
  font-size:14px;font-weight:600;color:#2D3436;cursor:pointer;transition:all .15s;
  display:inline-flex;align-items:center;justify-content:center;
}
.answer-choice:hover{border-color:#5B8A72;background:#F0F7F3}
.answer-choice.selected{border-color:#5B8A72;background:#5B8A72;color:#fff}
.submit-answers-btn{
  padding:8px 24px;border-radius:8px;border:none;background:#5B8A72;color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:all .15s;
}
.submit-answers-btn:hover:not(:disabled){background:#3D5A4E}
.submit-answers-btn:disabled{background:#B0BDB5}
.markdown-assignment{padding:18px;background:#FAF9F6;border-radius:12px;border:1px solid #E5E0D8}
.assignment-actions{display:flex;gap:10px;flex-wrap:wrap;padding-top:14px;border-top:1px solid #F0EDE7}
.pdf-link{display:inline-block;padding:8px 18px;background:#5B8A72;color:white;border-radius:10px;text-decoration:none;font-weight:600;transition:background 0.2s}
.pdf-link:hover{background:#4A7560}

/* ===========================
   Modal Styling
   =========================== */

.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(45,52,54,0.4);backdrop-filter:blur(4px);z-index:1000;align-items:center;justify-content:center;padding:20px}
.modal-content{background:white;border-radius:16px;max-width:800px;width:100%;max-height:90vh;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 16px 48px rgba(45,52,54,0.15)}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px;border-bottom:1px solid #E5E0D8}
.modal-header h3{margin:0;font-size:18px;font-weight:600;color:#2D3436}
.modal-header button{font-size:20px;padding:4px 12px;background:#F0EDE7;color:#8B9A9C}
.modal-header button:hover{background:#E5E0D8;color:#2D3436}
.markdown-preview,.help-content{padding:20px;overflow-y:auto;flex:1}
.help-table{width:100%;margin:12px 0}
.help-table td{padding:8px;vertical-align:top}
.help-table td:first-child{width:40%;font-family:monospace;background:#F0EDE7;border-radius:6px}
.help-content section{margin-bottom:24px}
.help-content h4{font-size:18px;margin-bottom:12px;color:#2D3436}

/* ===========================
   Error Box Styling
   =========================== */

.error-box{background:#FDF0EE;border:1px solid #E8ACA4;border-radius:10px;padding:18px;margin:16px 0}
.error-box strong{color:#C0564A}
.error-box details{margin-top:12px}
.error-box summary{cursor:pointer;color:#8B9A9C;font-size:14px}
.error-box pre{background:white;border:1px solid #E5E0D8;padding:12px;border-radius:8px;overflow-x:auto;font-size:12px;margin-top:8px}

.audit-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.audit-stat{border:1px solid #E5E0D8;border-radius:12px;background:#FAF9F6;padding:12px}
.audit-stat .label{font-size:12px;color:#8B9A9C;font-weight:500}
.audit-stat .value{font-size:22px;font-weight:700;color:#2D3436}
.table-scroll{overflow-x:auto}
.section-top-gap{margin-top:16px}
.submitted-late{color:#C0564A;font-weight:600}

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

/* College sub-tabs: horizontal scroll on mobile */
#collegePublicSubTabs, #collegeSubTabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
#collegePublicSubTabs::-webkit-scrollbar, #collegeSubTabs::-webkit-scrollbar { display: none; }
#collegePublicSubTabs .tab-btn, #collegeSubTabs .tab-btn { white-space: nowrap; flex-shrink: 0; }

@media (max-width:768px){
  body{padding:0}
  body[data-layout-template]{--layout-side-gutter:12px}
  .markdown-content{font-size:15px}
  .markdown-content h1{font-size:22px}
  .markdown-content h2{font-size:19px}
  .markdown-content h3{font-size:17px}
  .assignment-header{flex-direction:column;align-items:flex-start;gap:8px}
  .modal-content{max-width:100%;max-height:95vh}
  .markdown-content .katex-display{font-size:0.9em;padding:12px}
  /* Fix main tabs wrapping on mobile */
  .tab-bar{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .tab-bar::-webkit-scrollbar{display:none}
  .tab-bar .tab-btn{white-space:nowrap;flex-shrink:0;font-size:13px;padding:7px 10px}
  #collegePublicSubTabs .tab-btn, #collegeSubTabs .tab-btn{font-size:12px;padding:6px 8px}
}

/* ===========================
   Loading Overlay
   =========================== */

.loading-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(248,246,241,0.85);z-index:9999;align-items:center;justify-content:center;flex-direction:column;gap:14px}
.loading-orbit{position:relative;width:72px;height:72px;animation:vm-orbit-spin 2.5s linear infinite}
.loading-orbit .orbit-sym{position:absolute;font-size:20px;font-weight:700;filter:drop-shadow(0 1px 2px rgba(0,0,0,.1))}
.loading-orbit .orbit-sym:nth-child(1){top:0;left:50%;transform:translateX(-50%);color:#5B8A72}
.loading-orbit .orbit-sym:nth-child(2){top:50%;right:0;transform:translateY(-50%);color:#3B5BDB}
.loading-orbit .orbit-sym:nth-child(3){bottom:0;left:50%;transform:translateX(-50%);color:#D4A017}
.loading-orbit .orbit-sym:nth-child(4){top:50%;left:0;transform:translateY(-50%);color:#C0564A}
.loading-timer{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:13px;font-weight:700;color:#5B8A72;font-variant-numeric:tabular-nums}
.loading-msg{font-size:13px;color:#888;font-weight:500;text-align:center;min-height:18px}
/* legacy fallback */
.loading-spinner{width:40px;height:40px;border:3px solid #E5E0D8;border-top:3px solid #5B8A72;border-radius:50%;animation:vm-orbit-spin .8s linear infinite}
@keyframes vm-orbit-spin{to{transform:rotate(360deg)}}

/* ===========================
   Toast Notifications
   =========================== */

.toast{position:fixed;bottom:24px;right:24px;padding:14px 22px;border-radius:12px;font-size:14px;font-weight:500;color:#fff;z-index:10000;opacity:0;transform:translateY(20px);transition:opacity .3s,transform .3s;max-width:360px;word-break:break-word;box-shadow:0 6px 20px rgba(45,52,54,0.12)}
.toast-visible{opacity:1;transform:translateY(0)}
.toast-info{background:#4A5568}
.toast-success{background:#5B8A72}
.toast-error{background:#C0564A}

/* ===========================
   Calm Style — Branded Topbar (dashboard pages only)
   =========================== */
.dashboard-topbar{background:linear-gradient(135deg,#3D5A4E 0%,#4A7560 50%,#5B8A72 100%);color:#fff;padding:18px 24px;border-radius:16px;margin-bottom:12px;box-shadow:0 4px 16px rgba(61,90,78,0.15)}
.dashboard-topbar h1{color:#fff;font-size:1.5rem;font-weight:800;letter-spacing:-0.02em;margin:0}
.dashboard-topbar h1 span{color:#C4A265 !important}
.dashboard-topbar .muted{color:rgba(255,255,255,0.7)}
.dashboard-topbar .muted a{color:#C4A265}
.dashboard-topbar .pill{color:rgba(255,255,255,0.7);border-color:rgba(255,255,255,0.25)}
.dashboard-topbar .btnLight{background:rgba(255,255,255,0.15);color:#fff;border-color:rgba(255,255,255,0.3)}
.dashboard-topbar .btnLight:hover{background:rgba(255,255,255,0.25);border-color:rgba(255,255,255,0.5);color:#fff}
.dashboard-topbar .btnLight.active{background:#C4A265;color:#fff;border-color:#C4A265}
.dashboard-topbar .lang-toggle button{background:rgba(255,255,255,0.12);color:rgba(255,255,255,0.7);border-color:rgba(255,255,255,0.2)}
.dashboard-topbar .lang-toggle button.active{background:#C4A265;color:#fff;border-color:#C4A265}
.dashboard-topbar .lang-toggle button:hover:not(.active){background:rgba(255,255,255,0.2);color:#fff}
/* Card hover */
.card{transition:box-shadow .2s,transform .15s}
.card:hover{box-shadow:0 4px 16px rgba(91,138,114,0.1)}
/* Tab bar — full-width strip with content aligned to layout width */
.tab-bar{
  margin-top:0;
  background:var(--bg);
  border-bottom:1px solid #E5E0D8;
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  padding:4px max(16px, calc((100vw - var(--layout-max-width, 1040px)) / 2 + 16px));
}
.tab-bar::-webkit-scrollbar{display:none}
.tab-bar .tab-btn{
  white-space:nowrap;
  flex:0 0 auto;
  border-radius:10px;
  padding:8px 14px;
  font-weight:600;
}
/* Nested sub-tab bars inside centered panels should align to panel width,
   not re-apply viewport-based side padding. */
.tab-panel > .tab-bar{
  padding-left:0;
  padding-right:0;
}
.tab-bar-inner{
  max-width:var(--layout-max-width, 1160px);
  margin:0 auto;
  padding:0;
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.tab-bar-inner::-webkit-scrollbar{display:none}
@media(max-width:768px){
  .tab-bar{padding:4px 12px;gap:3px}
  .tab-bar .tab-btn{font-size:13px;padding:7px 10px}
  .tab-bar-inner{padding:0}
}

/* ===========================
   Site-wide Navbar
   =========================== */
.site-nav{display:flex;gap:2px;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;background:#fff;border:1px solid #E5E0D8;border-radius:12px;padding:4px;margin-bottom:12px}
.site-nav::-webkit-scrollbar{display:none}
.site-nav-link{padding:6px 14px;border-radius:8px;text-decoration:none;color:#8B9A9C;font-size:13px;font-weight:500;white-space:nowrap;flex-shrink:0;transition:all .2s}
.site-nav-link:hover{background:#F0EDE7;color:#2D3436}
.site-nav-link.active{background:#5B8A72;color:#fff}

@media print{
  .assignment-actions,.status-badge,.no-print{display:none!important}
  .assignment-card{page-break-inside:avoid;box-shadow:none;border:1px solid #ddd}
  .markdown-content{font-size:14px}
  .topbar{background:none;color:#2D3436;box-shadow:none}
}

/* ── Common Footer ── */
footer.vm-footer {
  margin-top: 48px;
  padding: 24px 20px;
  text-align: center;
  border-top: 1px solid #e8e8e8;
  background: #fafafa;
}
.vm-footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: nowrap;
  font-size: 0.85rem;
  color: #636e72;
  white-space: nowrap;
}
.vm-footer-yt { color: #5B8A72; text-decoration: none; }
.vm-footer-yt:hover { text-decoration: underline; }
.vm-footer-sep { color: #b2bec3; }
.vm-footer-copy { color: #636e72; }

/* ===========================
   Unified Structural Classes
   =========================== */

/* Page container — consistent width & padding across all pages */
.container{max-width:var(--layout-max-width, 1160px);margin:0 auto;padding:24px}

/* Sub-tab navigation (college, essay, financial, school_detail) */
.sub-tab{padding:10px 18px;text-decoration:none;color:#8B9A9C;font-weight:600;font-size:14px;border-bottom:3px solid transparent;transition:all .2s;white-space:nowrap}
.sub-tab:hover{color:#2D3436}
.sub-tab.active{color:#5B8A72;border-bottom-color:#5B8A72}

/* Primary action button — gradient green */
.btn-action{padding:12px 32px;background:linear-gradient(135deg,#5B8A72,#4A7560);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:700;cursor:pointer;transition:transform .15s,box-shadow .2s}
.btn-action:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(91,138,114,0.3)}
.btn-action:active{transform:translateY(0)}
.btn-action:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* Start button (drill, sat, placement) */
.btn-start{padding:14px 48px;font-size:18px;font-weight:700;border-radius:12px;background:#5B8A72;color:#fff;border:none;cursor:pointer;transition:transform .1s,box-shadow .2s}
.btn-start:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(91,138,114,0.3);background:#4A7560}
.btn-start:active{transform:translateY(0)}

/* Form group — consistent labels & inputs */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:14px;font-weight:600;color:#4A5568;margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px 12px;border:1.5px solid #DDD8D0;border-radius:12px;font-size:14px;font-family:inherit;transition:border-color .2s,box-shadow .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:#5B8A72;box-shadow:0 0 0 3px rgba(91,138,114,0.12)}

/* Page hero banner */
.page-hero{background:linear-gradient(135deg,#5B8A72 0%,#3D6B57 100%);color:#fff;border-radius:16px;padding:24px 28px;margin-bottom:20px}
.page-hero h1{color:#fff;margin:0 0 6px;font-size:1.5em}
.page-hero p{margin:0;opacity:.87;font-size:.95em}

/* Form grid — 2-column layout for setup forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;max-width:560px;margin:0 auto 20px}
.form-grid label{font-weight:600;font-size:14px;color:#4A5568;display:block;margin-bottom:4px}
.form-grid select{width:100%;padding:10px 12px;font-size:15px}
@media(max-width:520px){.form-grid{grid-template-columns:1fr}}

/* Section header */
.section-header{margin:24px 0 12px}
.section-header h2{font-size:20px;font-weight:700;color:#2D3436;margin:0}
.section-header h3{font-size:17px;font-weight:600;color:#2D3436;margin:0}

/* Results section — hidden by default, shown via JS */
.results{display:none}
.results.show{display:block}

/* Score circle */
.score-circle{width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;margin:0 auto 8px}
.score-high{background:#E8F5EE;color:#3D7A56}
.score-mid{background:#FFF8E6;color:#9A7B2C}
.score-low{background:#FDF0EE;color:#C0564A}

@media(max-width:768px){
  body[data-layout-template] { --layout-side-gutter: 12px; }
  .container{padding:16px}
  .form-grid{grid-template-columns:1fr}
  .page-hero{padding:18px 20px}
  .page-hero h1{font-size:1.25em}
}
/* ===========================
   SAT Tools (Calc/Ref)
   =========================== */
.sat-tools-bar {
  display: flex;
  gap: 12px;
  align-items: center;
}
.tool-btn {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-soft);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
}
.tool-btn:hover {
  background: #fdfaf5;
  border-color: var(--gold);
  color: var(--gold);
}
.tool-btn svg { width: 16px; height: 16px; }

/* Modal Overlay */
.sat-modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(2px);
  z-index: 1000;
  display: none; /* hidden by default */
  align-items: center;
  justify-content: center;
}
.sat-modal-content {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  width: 95%;
  max-width: 900px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transform: translateY(20px); transition: transform 0.3s ease;
}
.sat-modal-overlay.active .sat-modal-content { transform: translateY(0); }

.sat-modal-header {
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--green-dark);
}
.sat-modal-header h3 { font-size: 18px; font-weight: 700; color: #fff; letter-spacing: 0.5px; margin: 0; }
.close-modal {
  background: rgba(255,255,255,0.1); border: none; font-size: 24px; cursor: pointer; color: #fff;
  width: 32px; height: 32px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; transition: all 0.2s;
}
.close-modal:hover { background: rgba(255,255,255,0.2); transform: rotate(90deg); }

.sat-modal-body {
  flex: 1;
  padding: 0;
  overflow: auto;
}
.calc-frame {
  width: 100%;
  height: 600px;
  border: none;
}
.ref-sheet-img {
  width: 100%;
  display: block;
  padding: 20px;
}