/* ═══════════════════════════════════════════════════════════
   ARNA COLLEGE PLAN — DESIGN SYSTEM
   ═══════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:       #1e3a5f;
  --navy-dark:  #152d4a;
  --blue:       #2563eb;
  --blue-50:    #eff6ff;
  --blue-100:   #dbeafe;
  --green:      #16a34a;
  --green-50:   #f0fdf4;
  --green-100:  #dcfce7;
  --amber:      #b45309;
  --amber-50:   #fffbeb;
  --amber-100:  #fef3c7;
  --red:        #dc2626;
  --red-50:     #fff1f2;
  --red-100:    #fee2e2;
  --purple:     #7c3aed;
  --purple-100: #ede9fe;

  --bg:           #f0f4f8;
  --surface:      #ffffff;
  --border:       #e2e8f0;
  --border-light: #f1f5f9;
  --text:         #0f172a;
  --text-2:       #475569;
  --text-3:       #94a3b8;

  --sidebar-w: 228px;
  --topbar-h:  56px;
  --radius:    10px;
  --radius-lg: 14px;
  --shadow:    0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
}

html { font-size: 14px; -webkit-font-smoothing: antialiased; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  display: flex;
  min-height: 100vh;
}

/* ═══ SIDEBAR ═══ */
.sidebar {
  position: fixed; inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--navy);
  display: flex; flex-direction: column;
  z-index: 300; overflow-y: auto;
  box-shadow: 2px 0 8px rgba(0,0,0,.12);
}
.sidebar-brand {
  padding: 18px 16px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-logo {
  display: flex; align-items: center; gap: 10px; margin-bottom: 14px;
}
.logo-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: #fff; flex-shrink: 0;
}
.logo-text { font-size: 12.5px; font-weight: 700; color: #fff; }
.logo-text span { display: block; font-size: 9px; font-weight: 400; color: rgba(255,255,255,.4); margin-top: 1px; }
.student-card {
  background: rgba(255,255,255,.07);
  border-radius: 8px; padding: 10px 12px;
  border: 1px solid rgba(255,255,255,.08);
}
.student-name { font-size: 13px; font-weight: 600; color: #fff; margin-bottom: 2px; }
.student-meta { font-size: 10px; color: rgba(255,255,255,.5); line-height: 1.5; }

.nav-group { padding: 12px 10px 4px; }
.nav-group-label {
  font-size: 9px; font-weight: 700; color: rgba(255,255,255,.28);
  letter-spacing: .09em; text-transform: uppercase;
  padding: 0 8px; margin-bottom: 3px; display: block;
}
.nav-item {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 10px; border-radius: 7px;
  color: rgba(255,255,255,.6);
  text-decoration: none; font-size: 12.5px;
  transition: background .12s, color .12s;
  margin-bottom: 1px; position: relative;
}
.nav-item:hover { background: rgba(255,255,255,.07); color: rgba(255,255,255,.9); }
.nav-item.active { background: rgba(255,255,255,.1); color: #fff; font-weight: 500; }
.nav-item.active::before {
  content: ''; position: absolute; left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 18px; background: #60a5fa;
  border-radius: 0 2px 2px 0;
}
.nav-item svg { flex-shrink: 0; opacity: .65; }
.nav-item.active svg, .nav-item:hover svg { opacity: 1; }
.nav-badge {
  margin-left: auto; font-size: 9px; font-weight: 700;
  background: #dc2626; color: #fff;
  padding: 1px 6px; border-radius: 10px; min-width: 18px; text-align: center;
}
.sidebar-footer {
  margin-top: auto; padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,.07);
  font-size: 10px; color: rgba(255,255,255,.25); line-height: 1.6;
}

/* Mobile menu button */
.menu-btn {
  display: none; position: fixed; top: 10px; left: 10px; z-index: 400;
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--navy); border: none; cursor: pointer;
  align-items: center; justify-content: center; color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.45); z-index: 250;
}
.overlay.show { display: block; }

/* ═══ MAIN LAYOUT ═══ */
.main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar {
  position: sticky; top: 0; z-index: 200;
  background: var(--surface); border-bottom: 1px solid var(--border);
  height: var(--topbar-h); padding: 0 28px;
  display: flex; align-items: center; gap: 12px;
}
.topbar-icon { color: var(--text-3); display: flex; }
.topbar-info { flex: 1; }
.topbar-title { font-size: 14px; font-weight: 600; color: var(--text); }
.topbar-sub { font-size: 11px; color: var(--text-3); }
.topbar-chips { display: flex; gap: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 10px; font-weight: 600; padding: 3px 9px; border-radius: 20px;
}
.chip-red   { background: var(--red-100);   color: var(--red); }
.chip-green { background: var(--green-100); color: var(--green); }
.chip-amber { background: var(--amber-100); color: var(--amber); }
.chip-blue  { background: var(--blue-100);  color: var(--blue); }
.chip-navy  { background: #dce7f5;          color: var(--navy); }

.content { padding: 26px 28px 48px; max-width: 960px; width: 100%; }

/* ═══ PAGE HEADER ═══ */
.ph { margin-bottom: 22px; }
.ph-title { font-size: 20px; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.ph-desc  { font-size: 12.5px; color: var(--text-2); }

/* ═══ SECTION HEADING ═══ */
.sh {
  font-size: 10.5px; font-weight: 700; color: var(--text-3);
  letter-spacing: .07em; text-transform: uppercase;
  margin-bottom: 12px; margin-top: 26px;
  display: flex; align-items: center; gap: 8px;
}
.sh:first-child { margin-top: 0; }
.sh-line { flex: 1; height: 1px; background: var(--border-light); }

/* ═══ STAT CARDS ═══ */
.stat-row { display: grid; gap: 12px; margin-bottom: 22px; grid-template-columns: repeat(4, 1fr); }
.stat-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow);
}
.sc-label { font-size: 10.5px; font-weight: 600; color: var(--text-3); letter-spacing: .04em; text-transform: uppercase; margin-bottom: 7px; }
.sc-value { font-size: 28px; font-weight: 700; line-height: 1; margin-bottom: 4px; }
.sc-detail { font-size: 11px; color: var(--text-3); }
.sc-value.green  { color: var(--green); }
.sc-value.blue   { color: var(--blue); }
.sc-value.navy   { color: var(--navy); }
.sc-value.red    { color: var(--red); }
.sc-value.amber  { color: var(--amber); }
.sc-value.purple { color: var(--purple); }

/* ═══ ALERTS ═══ */
.alert-stack { display: flex; flex-direction: column; gap: 8px; }
.alert {
  display: flex; gap: 10px; align-items: flex-start;
  border-radius: 9px; padding: 11px 14px;
  font-size: 12px; line-height: 1.6;
}
.alert svg { flex-shrink: 0; margin-top: 2px; }
.alert.red   { background: var(--red-50);   border: 1px solid #fca5a5; color: #7f1d1d; }
.alert.amber { background: var(--amber-50); border: 1px solid #fcd34d; color: #78350f; }
.alert.green { background: var(--green-50); border: 1px solid #86efac; color: #14532d; }
.alert strong { font-weight: 600; }

/* ═══ CARDS ═══ */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden; }
.card-hd { padding: 14px 18px; border-bottom: 1px solid var(--border-light); display: flex; align-items: center; justify-content: space-between; }
.card-hd-title { font-size: 13px; font-weight: 600; color: var(--text); }
.card-hd-sub   { font-size: 11px; color: var(--text-3); }
.card-body { padding: 18px; }

/* ═══ BADGES ═══ */
.badge {
  display: inline-flex; align-items: center;
  font-size: 9.5px; font-weight: 700; padding: 2px 8px;
  border-radius: 20px; letter-spacing: .02em; white-space: nowrap;
}
.badge-ap      { background: var(--green-100); color: #166534; }
.badge-dc      { background: var(--blue-100);  color: #1e40af; }
.badge-hs      { background: #f1f5f9;          color: #475569; }
.badge-skip    { background: var(--red-100);   color: #991b1b; }
.badge-todo    { background: var(--amber-100); color: #92400e; }
.badge-done    { background: #f1f5f9;          color: #64748b; }
.badge-prog    { background: var(--blue-100);  color: #1e40af; }
.badge-act     { background: var(--amber-100); color: #92400e; }
.badge-plan    { background: var(--green-100); color: #166534; }
.badge-reach   { background: var(--red-100);   color: #991b1b; }
.badge-target  { background: var(--blue-100);  color: #1e40af; }
.badge-safe    { background: var(--green-100); color: #166534; }
.badge-gap     { background: var(--red-100);   color: #991b1b; }
.badge-ok      { background: var(--green-100); color: #166534; }
.badge-verify  { background: var(--amber-100); color: #92400e; }
.badge-exceeds { background: var(--purple-100); color: #4c1d95; }

/* Pills */
.pill-wrap { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
.pill { font-size: 10px; padding: 2px 8px; border-radius: 6px; font-weight: 500; line-height: 1.5; }
.pill-ap   { background: var(--green-100); color: #166534; border: 1px solid #bbf7d0; }
.pill-dc   { background: var(--blue-100);  color: #1e40af; border: 1px solid #bfdbfe; }
.pill-hs   { background: #f1f5f9;          color: #475569; border: 1px solid #e2e8f0; }
.pill-todo { background: var(--amber-100); color: #92400e; border: 1px solid #fde68a; }

/* ═══ TABLE ═══ */
.tbl-wrap { border-radius: var(--radius); border: 1px solid var(--border); overflow: auto; -webkit-overflow-scrolling: touch; box-shadow: var(--shadow); }
table.tbl { width: 100%; border-collapse: collapse; background: var(--surface); font-size: 12px; }
table.tbl thead tr { background: #f8fafc; }
table.tbl th {
  padding: 10px 14px; text-align: left;
  font-size: 10px; font-weight: 600; color: var(--text-3);
  letter-spacing: .05em; text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
table.tbl td {
  padding: 11px 14px; border-bottom: 1px solid var(--border-light);
  vertical-align: top; line-height: 1.5;
}
table.tbl tr:last-child td { border-bottom: none; }
table.tbl tr:hover td { background: #f8fafc; }
table.tbl td:first-child { font-weight: 500; }
table.tbl td small { color: var(--text-3); font-size: 11px; }

/* ═══ PROGRESS BAR ═══ */
.prog-wrap { height: 6px; background: #f1f5f9; border-radius: 3px; overflow: hidden; display: flex; }
.prog-fill { height: 100%; border-radius: 3px; }
.prog-green   { background: var(--green); }
.prog-planned { background: #86efac; }

/* ═══ TIMELINE ═══ */
.timeline { position: relative; padding-left: 0; }
.timeline::before {
  content: ''; position: absolute;
  left: 18px; top: 20px; bottom: 20px; width: 2px;
  background: var(--border); border-radius: 1px;
}
.tl-item { display: flex; gap: 16px; position: relative; margin-bottom: 12px; }
.tl-dot { width: 38px; flex-shrink: 0; display: flex; justify-content: center; padding-top: 14px; }
.tl-dot-inner {
  width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid var(--border); background: #fff;
  position: relative; z-index: 1;
}
.tl-dot-inner.done { background: var(--green);  border-color: var(--green); }
.tl-dot-inner.prog { background: var(--blue);   border-color: var(--blue); }
.tl-dot-inner.act  { background: #fbbf24;       border-color: #fcd34d; }
.tl-dot-inner.plan { background: #fff;           border-color: #86efac; }
.tl-card {
  flex: 1; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow);
}
.tl-card.done { border-color: #d1fae5; }
.tl-card.prog { border-left: 3px solid var(--blue); }
.tl-card.act  { border-left: 3px solid #fcd34d; }
.tl-title  { font-size: 13px; font-weight: 600; margin-bottom: 1px; }
.tl-date   { font-size: 11px; color: var(--text-3); margin-bottom: 8px; }
.tl-note   { font-size: 11px; color: var(--text-3); margin-top: 9px; padding-top: 8px; border-top: 1px solid var(--border-light); line-height: 1.5; }

/* ═══ UNIVERSITY CARDS ═══ */
.uni-card {
  border-radius: var(--radius-lg); padding: 18px;
  background: var(--surface); border: 1.5px solid var(--border);
  box-shadow: var(--shadow);
}
.uni-card.reach  { border-color: #fca5a5; }
.uni-card.target { border-color: #93c5fd; }
.uni-card.safe   { border-color: #86efac; }
.uni-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 3px; }
.uni-name   { font-size: 15px; font-weight: 700; }
.uni-sub    { font-size: 11px; color: var(--text-3); margin-bottom: 12px; }
.uni-row {
  display: flex; justify-content: space-between;
  padding: 5px 0; border-top: 1px solid var(--border-light);
  font-size: 11px;
}
.uni-row-label { color: var(--text-3); }
.uni-row-val   { font-weight: 600; }
.uni-note {
  margin-top: 10px; padding-top: 10px;
  border-top: 1px solid var(--border-light);
  font-size: 11px; line-height: 1.6; color: var(--text-2);
}
.uni-card.reach  .uni-note { color: #7f1d1d; }
.uni-card.target .uni-note { color: #1e3a8a; }
.uni-card.safe   .uni-note { color: #14532d; }

/* ═══ ACTION ITEMS ═══ */
.action-item {
  display: grid; grid-template-columns: 30px 1fr auto;
  gap: 12px; align-items: start;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px;
  margin-bottom: 8px; box-shadow: var(--shadow);
  transition: box-shadow .15s;
}
.action-item:hover { box-shadow: var(--shadow-md); }
.ai-num {
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.ai-num.red   { background: var(--red-100);   color: var(--red); }
.ai-num.amber { background: var(--amber-100); color: var(--amber); }
.ai-num.green { background: var(--green-100); color: var(--green); }
.ai-body { font-size: 12px; line-height: 1.6; }
.ai-body strong { font-weight: 600; }
.ai-date { font-size: 10px; font-weight: 600; color: var(--text-3); text-align: right; padding-top: 3px; white-space: nowrap; }
.ai-date.urgent { color: var(--red); }

/* ═══ FILTER TABS ═══ */
.filter-tabs { display: flex; gap: 4px; margin-bottom: 14px; flex-wrap: wrap; }
.ftab {
  padding: 6px 14px; border-radius: 7px; font-size: 11px; font-weight: 500;
  border: 1px solid var(--border); background: var(--surface);
  cursor: pointer; color: var(--text-2); transition: all .12s;
}
.ftab:hover { background: #f8fafc; }
.ftab.active { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ═══ CORE CURRICULUM ROWS ═══ */
.cc-row {
  display: grid; grid-template-columns: 170px 1fr 120px 80px;
  align-items: center; gap: 12px; padding: 13px 0;
  border-bottom: 1px solid var(--border-light);
}
.cc-row:last-child { border-bottom: none; }
.cc-name  { font-size: 12.5px; font-weight: 600; }
.cc-desc  { font-size: 10.5px; color: var(--text-3); margin-top: 2px; line-height: 1.4; }
.cc-hrs   { font-size: 11px; color: var(--text-3); text-align: right; }
.cc-status { text-align: right; }

/* ═══ QUICK LINKS ═══ */
.quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.ql-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px;
  text-decoration: none; color: inherit; box-shadow: var(--shadow);
  transition: all .15s; display: block;
}
.ql-card:hover { border-color: #93c5fd; box-shadow: var(--shadow-md); transform: translateY(-1px); }
.ql-icon  { margin-bottom: 8px; color: var(--navy); }
.ql-title { font-size: 12.5px; font-weight: 600; margin-bottom: 2px; }
.ql-desc  { font-size: 11px; color: var(--text-3); }

/* ═══ CHART ═══ */
.chart-container { position: relative; height: 420px; }

/* ═══ COMPARISON TABLE ═══ */
.compare-table { width: 100%; border-collapse: collapse; font-size: 12px; background: var(--surface); }
.compare-table th {
  padding: 10px 14px; font-size: 11px; font-weight: 700; text-align: center;
  border-bottom: 2px solid var(--border);
}
.compare-table th:first-child { text-align: left; }
.compare-table td {
  padding: 9px 14px; border-bottom: 1px solid var(--border-light);
  text-align: center; font-size: 11px;
}
.compare-table td:first-child { text-align: left; font-weight: 600; color: var(--text-2); }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table tr:hover td { background: #f8fafc; }

/* ═══ GRID ═══ */
.g2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.g3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.mb0 { margin-bottom: 0; }
.mb12 { margin-bottom: 12px; }
.mb20 { margin-bottom: 20px; }
.mb22 { margin-bottom: 22px; }
.mt0 { margin-top: 0 !important; }

/* ═══ MOBILE ═══ */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform .2s; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .menu-btn { display: flex; }
  .content { padding: 16px; }
  .topbar { padding: 0 16px 0 56px; }
  .topbar-sub { display: none; }
  .stat-row { grid-template-columns: 1fr 1fr !important; }
  .g2, .g3 { grid-template-columns: 1fr; }
  .quick-grid { grid-template-columns: 1fr 1fr; }
  .cc-row { grid-template-columns: 1fr auto; }
  .cc-row .prog-wrap { display: none; }
  .action-item { grid-template-columns: 30px 1fr; }
  .ai-date { display: none; }
  .topbar-chips { display: none; }
  /* Scrollable tables on mobile */
  .tbl-wrap { border-radius: 0; }
  table.tbl { min-width: 540px; }
  /* University and comparison tables */
  .compare-table { min-width: 480px; }
}

@media (max-width: 480px) {
  .content { padding: 12px; }
  .ph-title { font-size: 17px; }
  .stat-row { grid-template-columns: 1fr 1fr !important; gap: 8px; }
  .sc-value { font-size: 22px; }
  .sc-label { font-size: 9.5px; }
  .quick-grid { grid-template-columns: 1fr; }
  .filter-tabs { gap: 3px; }
  .ftab { padding: 5px 10px; font-size: 10.5px; }
  .uni-card { padding: 14px; }
  .card-body { padding: 14px; }
  .topbar-title { font-size: 13px; }
}