:root{
  --bg:#121210;
  --bg-panel:#1a1a16;
  --bg-panel-raised:#201f1a;
  --grid-line:rgba(207,185,145,0.07);
  --gold:#CFB991;
  --gold-bright:#E7CD8C;
  --ink:#F3EFE3;
  --muted:#948D78;
  --muted-dim:#5F5A4B;
  --science:#7C9AAB;
  --ie:#CFB991;
  --elective:#6b6558;
  --complete:#7FA97F;
  --danger:#B5502F;
  --border:rgba(207,185,145,0.16);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
body{
  margin:0;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px) 0 0/40px 40px,
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) 0 0/40px 40px,
    var(--bg);
  color:var(--ink);
  font-family:'IBM Plex Sans', sans-serif;
}
a{color:inherit;}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px;}
h1,h2,h3{text-wrap:balance;}
p{text-wrap:pretty;}
.stat-value,.meta-value,#totalCreditsLabel{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--gold-bright);outline-offset:2px;}
:focus:not(:focus-visible){outline:none;}

/* ---- Tab navigation (planner sections) ---- */
.tab-bar{
  display:flex;gap:4px;margin-bottom:22px;
  border-bottom:1px solid var(--border);
  overflow-x:auto;
}
.tab-btn{
  font-family:'IBM Plex Mono',monospace;
  font-size:11.5px;letter-spacing:0.05em;text-transform:uppercase;
  color:var(--muted);background:none;border:none;
  padding:12px 18px 11px;
  display:inline-flex;align-items:center;gap:7px;
  cursor:pointer;white-space:nowrap;
  border-bottom:2px solid transparent;
  transition-property:color,border-color;transition-duration:0.15s;transition-timing-function:ease;
}
.tab-btn .icon-inline{width:14px;height:14px;margin-right:0;color:currentColor;}
.tab-btn:hover{color:var(--ink);}
.tab-btn.active{color:var(--gold-bright);border-bottom-color:var(--gold-bright);}
.tab-label-short{display:none;}
.tab-badge{
  font-family:'IBM Plex Mono',monospace;font-size:9.5px;font-weight:600;
  background:var(--danger);color:var(--ink);border-radius:999px;
  padding:1px 6px;line-height:1.5;margin-left:2px;
}
.tab-panel{display:none;}
.tab-panel.active{display:block;animation:tabFadeIn 0.35s cubic-bezier(0.22,1,0.36,1) both;}
@keyframes tabFadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
@media (prefers-reduced-motion: reduce){.tab-panel.active{animation:none;}}
@media(max-width:640px){
  .tab-bar{gap:0;}
  .tab-btn{padding:10px 6px;font-size:10px;flex:1 1 0;min-width:0;justify-content:center;gap:4px;letter-spacing:0.02em;}
  .tab-btn .icon-inline{display:none;}
  .tab-label-full{display:none;}
  .tab-label-short{display:inline;}
  .tab-badge{padding:1px 5px;font-size:9px;margin-left:1px;}
}
@media(max-width:360px){
  .tab-btn{font-size:9px;padding:9px 3px;}
}

/* ---- Nav ---- */
.site-nav{
  border-bottom:1px solid var(--border);
  background:rgba(18,18,16,0.72);
  backdrop-filter:blur(14px) saturate(1.4);
  -webkit-backdrop-filter:blur(14px) saturate(1.4);
  position:sticky;top:0;z-index:50;
}
.site-nav .wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:58px;
}
.brand{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;
  letter-spacing:0.06em;
  color:var(--gold-bright);
  text-decoration:none;
}
.brand b{color:var(--ink);}
.nav-links{display:flex;gap:22px;align-items:center;}
.nav-links a{
  font-family:'IBM Plex Mono',monospace;
  font-size:11.5px;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--muted);
  text-decoration:none;
}
.nav-links a:hover{color:var(--gold-bright);}
.nav-links a.cta{
  color:var(--bg);
  background:var(--gold-bright);
  padding:7px 14px;
}
.nav-links a.cta:hover{background:var(--gold);color:var(--bg);}
.embed-mode .site-nav{display:none;}
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:40px;height:40px;
  background:none;border:1px solid var(--border);
  cursor:pointer;
  padding:0;
  align-items:center;
  transition-property:background,border-color;
  transition-duration:0.15s;
  transition-timing-function:ease-out;
}
.nav-toggle:hover{border-color:var(--gold);}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--gold-bright);}
@media(max-width:640px){
  .nav-toggle{display:flex;}
  .nav-links{
    display:flex;
    position:absolute;
    top:58px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    background:var(--bg-panel);
    border-bottom:1px solid var(--border);
    max-height:0;
    overflow:hidden;
    transition:max-height 0.25s ease;
  }
  .nav-links.open{max-height:320px;}
  .nav-links a{padding:14px 20px;border-bottom:1px solid var(--border);text-align:left;}
  .nav-links a.cta{margin:10px 20px;text-align:center;}
  .site-nav .wrap{padding:0 16px;position:relative;}
  .brand{font-size:11.5px;}
}

/* ---- Title block (shared header motif) ---- */
.titleblock{
  border:1px solid var(--border);
  background:var(--bg-panel);
  display:grid;
  grid-template-columns:1.6fr 1fr;
  margin-bottom:22px;
}
.titleblock-main{padding:22px 26px;border-right:1px solid var(--border);}
.eyebrow{
  font-family:'IBM Plex Mono',monospace;
  font-size:11px;letter-spacing:0.14em;
  color:var(--gold);text-transform:uppercase;margin-bottom:8px;
}
h1{font-family:'Space Grotesk',sans-serif;font-size:30px;font-weight:700;margin:0 0 6px;letter-spacing:-0.01em;}
.subtitle{color:var(--muted);font-size:14px;line-height:1.5;max-width:520px;}
.titleblock-meta{display:grid;grid-template-columns:1fr 1fr;}
.meta-cell{padding:14px 18px;border-bottom:1px solid var(--border);}
.meta-cell:nth-child(odd){border-right:1px solid var(--border);}
.meta-label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:0.1em;color:var(--muted-dim);text-transform:uppercase;}
.meta-value{font-family:'IBM Plex Mono',monospace;font-size:16px;color:var(--gold-bright);margin-top:4px;font-weight:600;}

/* ---- Dashboard stats ---- */
.dash{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1px;background:var(--border);border:1px solid var(--border);margin-bottom:26px;}
.stat{background:var(--bg-panel);padding:16px 18px;transition:background 0.15s ease;}
.stat:hover{background:var(--bg-panel-raised);}
.stat-label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:0.09em;color:var(--muted);text-transform:uppercase;margin-bottom:8px;}
.stat-value{font-family:'Space Grotesk',sans-serif;font-size:26px;font-weight:600;color:var(--ink);}
.stat-value.accent{color:var(--gold-bright);}
.stat-sub{font-size:11px;color:var(--muted-dim);margin-top:4px;}

/* ---- Optimizer panel ---- */
.optimizer{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:28px;}
.optimizer-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px;flex-wrap:wrap;gap:10px;}
.optimizer h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0;letter-spacing:0.01em;display:flex;align-items:center;}
.optimizer-note{font-size:12px;color:var(--muted);max-width:640px;line-height:1.6;}
.slider-row{display:flex;align-items:center;gap:16px;margin-top:14px;}
.slider-row label{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--muted);white-space:nowrap;}
input[type=range]{-webkit-appearance:none;appearance:none;flex:1;height:3px;background:var(--muted-dim);outline:none;}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:15px;height:15px;border-radius:50%;background:var(--gold-bright);cursor:pointer;border:2px solid var(--bg);}
.slider-val{font-family:'IBM Plex Mono',monospace;font-size:15px;color:var(--gold-bright);font-weight:600;min-width:56px;text-align:right;}
details.howitworks{margin-top:16px;}
details.howitworks summary{cursor:pointer;font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--gold);letter-spacing:0.06em;text-transform:uppercase;}
details.howitworks .body{margin-top:10px;font-size:12.5px;color:var(--muted);line-height:1.7;border-left:2px solid var(--border);padding-left:14px;}
details.howitworks code{font-family:'IBM Plex Mono',monospace;color:var(--ie);background:rgba(207,185,145,0.08);padding:1px 5px;}

/* ---- Legend ---- */
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:18px;}
.legend-item{display:flex;align-items:center;gap:7px;font-size:11.5px;color:var(--muted);}
.swatch{width:10px;height:10px;flex:none;}

/* ---- Requirement progress bars ---- */
.progress-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:22px;}
.progress-head h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0 0 16px;display:flex;align-items:center;}
.req-row{margin-bottom:16px;}
.req-row:last-child{margin-bottom:0;}
.req-row-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px;}
.req-row-label{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--ink);}
.req-row-frac{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--muted);}
.req-bar-track{position:relative;height:8px;background:var(--bg-panel-raised);border:1px solid var(--border);border-radius:2px;overflow:hidden;}
.req-bar-fill{position:absolute;top:0;left:0;height:100%;border-radius:2px;transition:width 0.6s cubic-bezier(0.4,0,0.2,1);}
.req-bar-fill-inprog{position:absolute;top:0;height:100%;opacity:0.4;transition:left 0.6s cubic-bezier(0.4,0,0.2,1), width 0.6s cubic-bezier(0.4,0,0.2,1);background-image:repeating-linear-gradient(45deg, transparent, transparent 3px, rgba(0,0,0,0.18) 3px, rgba(0,0,0,0.18) 6px);}

/* ---- Card entrance animation ---- */
@keyframes cardIn{
  from{opacity:0; transform:translateY(8px);}
  to{opacity:1; transform:translateY(0);}
}
.semcard, .feature-card{animation:cardIn 0.45s cubic-bezier(0.16,1,0.3,1) both;}
.semgrid .semcard:nth-child(1){animation-delay:0.02s;}
.semgrid .semcard:nth-child(2){animation-delay:0.06s;}
.semgrid .semcard:nth-child(3){animation-delay:0.10s;}
.semgrid .semcard:nth-child(4){animation-delay:0.14s;}
.semgrid .semcard:nth-child(5){animation-delay:0.18s;}
.semgrid .semcard:nth-child(6){animation-delay:0.22s;}
.semgrid .semcard:nth-child(7){animation-delay:0.26s;}
.semgrid .semcard:nth-child(8){animation-delay:0.30s;}
.feature-grid .feature-card:nth-child(1){animation-delay:0.02s;}
.feature-grid .feature-card:nth-child(2){animation-delay:0.05s;}
.feature-grid .feature-card:nth-child(3){animation-delay:0.08s;}
.feature-grid .feature-card:nth-child(4){animation-delay:0.11s;}
.feature-grid .feature-card:nth-child(5){animation-delay:0.14s;}
.feature-grid .feature-card:nth-child(6){animation-delay:0.17s;}
.feature-grid .feature-card:nth-child(7){animation-delay:0.20s;}
.feature-grid .feature-card:nth-child(8){animation-delay:0.23s;}
@media (prefers-reduced-motion: reduce){
  .semcard, .feature-card{animation:none;}
}

/* ---- Semester grid ---- */
.semgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
@media(max-width:900px){.semgrid{grid-template-columns:repeat(2,1fr);} .dash{grid-template-columns:repeat(2,1fr);} .titleblock{grid-template-columns:1fr;}}
@media(max-width:560px){.semgrid{grid-template-columns:1fr;}}

.semcard{border:1px solid var(--border);background:var(--bg-panel);display:flex;flex-direction:column;border-radius:3px;overflow:hidden;transition:border-color 0.15s ease, transform 0.15s ease;}
.semcard:hover{border-color:var(--gold);transform:translateY(-2px);}
.semcard-head{padding:12px 14px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:baseline;}
.semcard-title{font-family:'Space Grotesk',sans-serif;font-size:14px;font-weight:600;}
.semcard-credits{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--gold);}
.semcard-credits.over{color:var(--danger);}
.courselist{padding:6px 0;}
.course-row{display:flex;align-items:flex-start;gap:9px;padding:8px 14px;border-bottom:1px solid rgba(207,185,145,0.05);border-radius:3px;transition:background 0.15s ease;}
.course-row:hover{background:rgba(207,185,145,0.05);}
.course-row:last-child{border-bottom:none;}
.course-row input[type=checkbox]{margin-top:3px;accent-color:var(--complete);width:14px;height:14px;flex:none;cursor:pointer;}
.course-main{flex:1;min-width:0;}
.course-top{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.course-code{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--muted);}
.cat-dot{width:6px;height:6px;border-radius:50%;flex:none;}
.course-name{font-size:12.5px;line-height:1.35;margin-top:2px;}
.course-name.done{color:var(--muted-dim);text-decoration:line-through;}
.badge{font-family:'IBM Plex Mono',monospace;font-size:9px;letter-spacing:0.05em;padding:1px 5px;border:1px solid;text-transform:uppercase;}
.badge.crit{color:var(--gold-bright);border-color:var(--gold-bright);}
.badge.opt{color:#E7CD8C;border-color:#E7CD8C;background:rgba(231,205,140,0.08);}
.badge.cap{color:var(--science);border-color:var(--science);}
.course-meta-row{display:flex;justify-content:space-between;align-items:center;margin-top:5px;gap:8px;}
.course-credits{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--muted-dim);}
select.grade{background:var(--bg-panel-raised);color:var(--ink);border:1px solid var(--border);font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:2px 4px;}

/* ---- Major selector ---- */
.major-select{
  border:1px solid var(--border);
  background:var(--bg-panel);
  padding:16px 22px;
  margin-bottom:20px;
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
.major-select-label{
  font-family:'IBM Plex Mono',monospace;
  font-size:10.5px;
  letter-spacing:0.09em;
  color:var(--muted);
  text-transform:uppercase;
}
.major-btn-row{display:flex;gap:8px;flex-wrap:wrap;}
.major-btn{
  font-family:'Space Grotesk',sans-serif;
  font-size:13px;
  font-weight:600;
  padding:8px 16px;
  border:1px solid var(--border);
  background:transparent;
  color:var(--muted);
  cursor:pointer;
  transition-property:color,border-color,background,transform;
  transition-duration:0.12s;
  transition-timing-function:ease;
}
.major-btn:hover{color:var(--ink);border-color:var(--gold);transform:translateY(-1px);}
.major-btn.active{color:var(--bg);background:var(--gold-bright);border-color:var(--gold-bright);}
.reset-btn-global{margin-left:auto;}

/* ---- Optimality badge ---- */
.opt-badge{
  display:inline-block;
  font-family:'IBM Plex Mono',monospace;
  font-size:11.5px;
  line-height:1.6;
  padding:8px 14px;
  border:1px solid;
}
.opt-badge.opt-good{color:var(--complete);border-color:var(--complete);background:rgba(127,169,127,0.08);}
.opt-badge.opt-gap{color:var(--gold-bright);border-color:var(--gold-bright);background:rgba(207,185,145,0.06);}

/* ---- Weekly timetable builder ---- */
.tt-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:28px;}
.tt-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:6px;flex-wrap:wrap;gap:8px;}
.tt-wrap h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0;letter-spacing:0.01em;display:flex;align-items:center;}
.tt-sem-label{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--gold);}
.tt-note{font-size:12px;color:var(--muted);line-height:1.6;margin-bottom:16px;}
.tt-course-row{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid rgba(207,185,145,0.05);flex-wrap:wrap;}
.tt-course-group{padding:10px 0 14px;border-bottom:1px solid rgba(207,185,145,0.08);}
.tt-course-group:last-child{border-bottom:none;}
.tt-course-group-header{display:flex;align-items:center;gap:7px;margin-bottom:8px;}
.tt-course-code{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--ink);font-weight:600;}
.tt-meeting-row{display:flex;align-items:center;gap:8px;padding:4px 0 4px 16px;flex-wrap:wrap;}
.tt-meeting-label-input{background:var(--bg-panel-raised);border:1px solid var(--border);color:var(--ink);font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:4px 6px;width:110px;}
.tt-meeting-room-input{background:var(--bg-panel-raised);border:1px solid var(--border);color:var(--ink);font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:4px 6px;width:100px;}
.tt-block .tt-block-room{display:block;font-size:9px;color:var(--muted);margin-top:1px;}
.tt-remove-btn{background:none;border:1px solid var(--border);color:var(--muted);font-size:12px;width:22px;height:22px;cursor:pointer;line-height:1;flex:none;}
.tt-remove-btn:hover{border-color:var(--danger);color:var(--danger);}
.tt-add-btn{background:none;border:1px dashed var(--border);color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:5px 12px;cursor:pointer;margin:6px 0 0 16px;}
.tt-add-btn:hover{border-color:var(--gold);color:var(--gold);}
.tt-course-label{display:flex;align-items:center;gap:6px;font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--ink);min-width:150px;}
.tt-days{display:flex;gap:4px;}
.tt-day-btn{width:26px;height:26px;border:1px solid var(--border);background:transparent;color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:10px;cursor:pointer;}
.tt-day-btn:hover{color:var(--ink);}
.tt-day-btn.active{background:var(--gold-bright);color:var(--bg);border-color:var(--gold-bright);}
.tt-time-input{background:var(--bg-panel-raised);border:1px solid var(--border);color:var(--ink);font-family:'IBM Plex Mono',monospace;font-size:11px;padding:4px 6px;color-scheme:dark;}
.tt-conflicts{display:none;margin:14px 0;padding:10px 14px;border:1px solid var(--danger);color:var(--danger);font-family:'IBM Plex Mono',monospace;font-size:11px;line-height:1.6;background:rgba(184,80,47,0.08);}
.tt-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.tt-grid-container{display:grid;grid-template-columns:44px repeat(5,1fr);min-width:520px;border:1px solid var(--border);margin-top:18px;background:var(--bg);}
.tt-grid-header{padding:8px 4px;text-align:center;font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--muted);border-bottom:1px solid var(--border);border-left:1px solid var(--border);}
.tt-grid-header:first-child{border-left:none;}
.tt-time-col{position:relative;}
.tt-day-col{position:relative;border-left:1px solid var(--border);background-image:repeating-linear-gradient(to bottom, rgba(207,185,145,0.05) 0, rgba(207,185,145,0.05) 1px, transparent 1px, transparent 48px);}
.tt-block{position:absolute;left:3px;right:3px;border-radius:2px;padding:3px 5px;font-size:10px;line-height:1.35;overflow:hidden;border:1px solid;font-family:'IBM Plex Mono',monospace;}
.tt-block.conflict{border-color:var(--danger)!important;box-shadow:0 0 0 1px var(--danger);}
.tt-empty-msg{padding:24px;text-align:center;color:var(--muted-dim);font-size:12px;}

/* ---- Semester calendar ---- */
.cal-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:28px;}
.cal-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:10px;margin-bottom:4px;}
.cal-wrap h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0;letter-spacing:0.01em;display:flex;align-items:center;}
.cal-badge{font-family:'IBM Plex Mono',monospace;font-size:10px;padding:2px 8px;border:1px solid;text-transform:uppercase;letter-spacing:0.05em;}
.cal-badge.confirmed{color:var(--complete);border-color:var(--complete);}
.cal-badge.estimated{color:var(--muted);border-color:var(--muted-dim);}
.cal-note{font-size:11.5px;color:var(--muted-dim);margin-bottom:14px;line-height:1.6;}
.cal-keydates{display:flex;flex-wrap:wrap;gap:8px 20px;margin:6px 0 18px;font-size:11.5px;color:var(--muted);font-family:'IBM Plex Mono',monospace;}
.cal-keydates .kd-dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:5px;vertical-align:middle;}
.cal-export-btn{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--bg);background:var(--gold-bright);border:none;padding:9px 16px;cursor:pointer;letter-spacing:0.04em;margin-bottom:20px;display:inline-flex;align-items:center;}
.cal-export-btn .icon-inline{color:var(--bg);margin-right:7px;}
.cal-export-btn:hover{background:var(--gold);}
.cal-months{display:flex;flex-wrap:wrap;gap:18px;}
.cal-month{width:220px;}
.cal-month-title{font-family:'Space Grotesk',sans-serif;font-size:12.5px;color:var(--ink);margin-bottom:8px;text-align:center;}
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:2px;}
.cal-dow{font-family:'IBM Plex Mono',monospace;font-size:9px;color:var(--muted-dim);text-align:center;padding:2px 0;}
.cal-day{font-family:'IBM Plex Mono',monospace;font-size:10px;text-align:center;padding:4px 0;color:var(--muted);}
.cal-day.empty{visibility:hidden;}
.cal-day.classstart{background:rgba(127,169,127,0.2);color:var(--complete);font-weight:600;}
.cal-day.classend{background:rgba(207,185,145,0.22);color:var(--gold-bright);font-weight:600;}
.cal-day.finals{background:rgba(184,80,47,0.16);color:var(--danger);}
.cal-day.break{background:rgba(124,154,171,0.2);color:var(--science);}

.assign-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:28px;}
.assign-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:10px;margin-bottom:4px;}
.assign-wrap h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0;letter-spacing:0.01em;display:flex;align-items:center;}
.assign-count{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--muted-dim);}
.assign-note{font-size:11.5px;color:var(--muted-dim);margin-bottom:14px;line-height:1.6;}
.assign-approx{color:var(--gold-bright);font-weight:600;}
.assign-controls{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:8px;}
.assign-filters{display:flex;flex-wrap:wrap;gap:6px;}
.assign-filter-btn{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:0.03em;color:var(--muted);background:none;border:1px solid var(--border);padding:5px 10px;cursor:pointer;}
.assign-filter-btn:hover{border-color:var(--gold);color:var(--gold-bright);}
.assign-filter-btn.active{color:var(--bg);background:var(--gold-bright);border-color:var(--gold-bright);}
.assign-wrap .cal-export-btn{margin-bottom:0;}
.assign-list{margin-top:12px;}
.assign-month{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:0.1em;text-transform:uppercase;color:var(--gold);border-bottom:1px solid var(--border);padding:14px 0 6px;margin-top:6px;}
.assign-month:first-child{margin-top:0;padding-top:0;}
.assign-row{display:grid;grid-template-columns:96px 100px 76px 1fr;gap:10px;align-items:start;padding:9px 0;border-bottom:1px solid rgba(207,185,145,0.06);}
.assign-row.past{opacity:0.42;}
.assign-row.upcoming{background:rgba(207,185,145,0.06);border-left:2px solid var(--gold-bright);padding-left:8px;margin-left:-10px;}
.assign-date{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--muted);white-space:nowrap;padding-top:1px;}
.assign-course-tag{font-family:'IBM Plex Mono',monospace;font-size:10px;padding:2px 6px;border:1px solid var(--border);color:var(--muted);text-align:center;white-space:nowrap;height:fit-content;}
.assign-course-tag.course-chm1{color:var(--gold-bright);border-color:var(--gold-bright);}
.assign-course-tag.course-chm2{color:var(--science);border-color:var(--science);}
.assign-course-tag.course-math{color:var(--complete);border-color:var(--complete);}
.assign-type-badge{font-family:'IBM Plex Mono',monospace;font-size:9px;letter-spacing:0.05em;padding:2px 6px;border:1px solid;text-transform:uppercase;text-align:center;white-space:nowrap;height:fit-content;}
.assign-title{font-size:13px;color:var(--ink);line-height:1.4;}
.assign-item-note{font-size:11px;color:var(--muted-dim);margin-top:2px;line-height:1.5;}
.assign-empty{font-size:12px;color:var(--muted-dim);padding:16px 0;}
@media (max-width:640px){
  .assign-row{grid-template-columns:1fr;gap:4px;}
  .assign-row.upcoming{margin-left:0;padding-left:10px;}
}

.reset-btn{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--muted);background:none;border:1px solid var(--border);padding:5px 10px;cursor:pointer;letter-spacing:0.05em;}
.reset-btn:hover{border-color:var(--gold);color:var(--gold);}
.status-msg{font-size:10.5px;color:var(--muted-dim);font-family:'IBM Plex Mono',monospace;}

.share-btn{
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:0.05em;text-transform:uppercase;
  color:var(--bg);background:var(--gold-bright);border:none;padding:6px 13px;cursor:pointer;
  display:inline-flex;align-items:center;gap:6px;
}
.share-btn:hover{background:var(--gold);}
.share-toast{
  position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(12px);
  background:var(--bg-panel-raised);border:1px solid var(--gold);color:var(--ink);
  font-family:'IBM Plex Mono',monospace;font-size:12px;padding:10px 18px;
  opacity:0;pointer-events:none;transition:opacity 0.25s ease, transform 0.25s ease;z-index:200;
  max-width:90vw;text-align:center;
}
.share-toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* ============================================================
   Landing page (index.html) — a deliberately quiet design system.
   Few boxes, few colors, generous space. The 3D hero and the
   equation panel are the only two "loud" moments on the page.
   ============================================================ */
.wrap-narrow{max-width:680px;}

.nav-open-btn{
  font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:0.06em;text-transform:uppercase;
  color:var(--bg);background:var(--gold-bright);padding:8px 16px;text-decoration:none;
}
.nav-open-btn:hover{background:var(--gold);}

.hero{position:relative;overflow:hidden;padding:calc(58px + 6vh) 0 5vh;text-align:center;min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;}
.hero3d{position:absolute;inset:0;z-index:0;pointer-events:none;opacity:0;transition:opacity 1.6s ease;}
.hero3d.is-ready{opacity:0.85;}
.hero3d canvas{display:block;width:100%;height:100%;}
.hero-content{position:relative;z-index:1;width:100%;}
.hero-content::before{
  content:'';
  position:absolute;
  left:50%;top:50%;
  transform:translate(-50%,-50%);
  width:min(720px,88%);height:115%;
  background:radial-gradient(ellipse at center, var(--bg) 0%, rgba(18,18,16,0.82) 35%, rgba(18,18,16,0) 65%);
  z-index:-1;
  pointer-events:none;
}
.hero-title{font-family:'Space Grotesk',sans-serif;font-size:clamp(42px,7vw,68px);font-weight:700;letter-spacing:-0.03em;line-height:1.04;margin:0 0 22px;}
.hero-tagline{font-family:'Space Grotesk',sans-serif;font-size:clamp(17px,2.4vw,22px);font-weight:500;color:var(--muted);max-width:600px;margin:0 auto 40px;line-height:1.45;}
.btn{
  font-family:'IBM Plex Mono',monospace;
  font-size:13px;letter-spacing:0.04em;
  padding:15px 30px;
  text-decoration:none;
  display:inline-block;
  transition-property:background,transform,box-shadow;transition-duration:0.15s;transition-timing-function:ease;
}
.btn-primary{background:var(--gold-bright);color:var(--bg);}
.btn-primary:hover{background:var(--gold);transform:translateY(-1px);}
.btn-lg{font-size:13.5px;padding:16px 34px;}
.hero-note{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--muted-dim);margin:22px 0 0;letter-spacing:0.02em;}

/* ---- Hero stat strip (real, honest numbers — no fabricated metrics) ---- */
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(10px,3vw,28px);
  max-width:640px;margin:clamp(40px,7vh,68px) auto 0;
  padding-top:clamp(22px,3.5vh,32px);border-top:1px solid var(--border);
}
.hero-stat-val{
  font-family:'Space Grotesk',sans-serif;font-weight:700;color:var(--gold-bright);
  font-size:clamp(19px,2.6vw,26px);letter-spacing:-0.02em;font-variant-numeric:tabular-nums;
}
.hero-stat-label{
  font-family:'IBM Plex Mono',monospace;font-size:clamp(9px,1vw,10.5px);color:var(--muted);
  letter-spacing:0.04em;margin-top:5px;line-height:1.4;
}
@media(max-width:640px){
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px 14px;}
}
.scroll-cue{
  position:absolute;left:50%;bottom:clamp(18px,3.5vh,32px);transform:translateX(-50%);
  width:32px;height:32px;border-radius:50%;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--muted);
  z-index:1;transition:border-color 0.2s ease,color 0.2s ease;
  animation:scrollCueBob 2.4s ease-in-out infinite;
}
.scroll-cue:hover{border-color:var(--gold);color:var(--gold-bright);}
@keyframes scrollCueBob{0%,100%{transform:translateX(-50%) translateY(0);}50%{transform:translateX(-50%) translateY(5px);}}
@media (prefers-reduced-motion: reduce){.scroll-cue{animation:none;}}
@media(max-width:640px){.scroll-cue{display:none;}}

section{padding:0;}
.story, .think, .feature-list, .cta-band{padding:72px 0;border-top:1px solid var(--border);}
.story h2, .think h2, .feature-list h2, .cta-band h2{
  font-family:'Space Grotesk',sans-serif;font-weight:600;
  font-size:clamp(24px,3.4vw,32px);letter-spacing:-0.01em;margin:0 0 18px;
}
.story p, .think p{color:var(--muted);font-size:15.5px;line-height:1.85;margin:0 0 14px;}
.story p:last-child, .think p:last-child{margin-bottom:0;}
.think i{color:var(--ink);font-style:normal;}

.eq-panel{
  font-family:'IBM Plex Mono',monospace;font-size:13px;line-height:2;color:var(--gold-bright);
  background:var(--bg-panel);border-left:2px solid var(--gold);padding:20px 24px;margin:22px 0 24px;
  overflow-x:auto;white-space:pre;
}

.flist{display:grid;grid-template-columns:1fr 1fr;gap:36px 44px;margin-top:36px;}
@media(max-width:700px){.flist{grid-template-columns:1fr;gap:30px;}}
.fitem h3{font-family:'Space Grotesk',sans-serif;font-size:16px;font-weight:600;margin:0 0 7px;color:var(--ink);}
.fitem p{font-size:13.5px;color:var(--muted);line-height:1.7;margin:0;}
.fmore{font-size:12.5px;color:var(--muted-dim);margin-top:38px;line-height:1.7;}

.cta-band{text-align:center;}
.cta-band .wrap-narrow{margin:0 auto;}

/* ---- Scroll-reveal motion layer ---- */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity 0.85s cubic-bezier(0.16,1,0.3,1), transform 0.85s cubic-bezier(0.16,1,0.3,1);}
[data-reveal].in-view{opacity:1;transform:translateY(0);}
[data-reveal-hero]{opacity:0;transform:translateY(16px);transition:opacity 0.9s cubic-bezier(0.16,1,0.3,1), transform 0.9s cubic-bezier(0.16,1,0.3,1);}
[data-reveal-hero].in-view{opacity:1;transform:translateY(0);}
.btn-primary{transition:background 0.15s ease, transform 0.15s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.2s ease;}
.btn-primary:hover{box-shadow:0 8px 24px -8px rgba(231,205,140,0.45);}
.btn-primary.is-pressed{transform:scale(0.96);}
@media (prefers-reduced-motion: reduce){
  [data-reveal],[data-reveal-hero]{transition:none;}
  .btn-primary{transition:background 0.15s ease;}
}

/* ---- Inline icon utility (headers, buttons) ---- */
.icon-inline{width:16px;height:16px;vertical-align:-3px;margin-right:7px;color:var(--gold);flex:none;}

/* ---- Currently Taking panel ---- */
.current-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:22px;}
.current-head h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0;letter-spacing:0.01em;display:flex;align-items:center;}
.current-note{font-size:12px;color:var(--muted);line-height:1.6;margin:10px 0 16px;}
.current-group-label{font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:0.09em;color:var(--gold);text-transform:uppercase;margin:16px 0 6px;}
.current-group-label:first-child{margin-top:0;}
.current-course-row{display:flex;align-items:center;gap:10px;padding:7px 0;border-bottom:1px solid rgba(207,185,145,0.05);flex-wrap:wrap;}
.current-course-row input[type=checkbox]{accent-color:var(--complete);width:15px;height:15px;flex:none;cursor:pointer;}
.current-course-code{font-family:'IBM Plex Mono',monospace;font-size:11.5px;color:var(--ink);min-width:70px;}
.current-course-name{font-size:12px;color:var(--muted);flex:1;min-width:140px;}
.current-course-credits{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--muted-dim);}
select.predicted-grade{background:var(--bg-panel-raised);color:var(--ink);border:1px solid var(--border);font-family:'IBM Plex Mono',monospace;font-size:10.5px;padding:3px 6px;}
.current-empty-msg{font-size:12px;color:var(--muted-dim);padding:16px 0;}
.roadmap-label{display:flex;align-items:center;font-family:'Space Grotesk',sans-serif;font-size:14px;color:var(--ink);margin-bottom:12px;}

/* ---- Sensitivity analysis ---- */
.sens-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:22px;}
.sens-head h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0 0 6px;display:flex;align-items:center;}
.sens-note{font-size:12px;color:var(--muted);line-height:1.6;margin-bottom:16px;max-width:720px;}
.sens-elbow{font-size:11.5px;color:var(--gold-bright);margin-top:10px;font-family:'IBM Plex Mono',monospace;}
#sensChart{max-width:560px;}

/* ---- Major comparison ---- */
.compare-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:22px;}
.compare-head h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0 0 6px;display:flex;align-items:center;}
.compare-note{font-size:12px;color:var(--muted);line-height:1.6;margin-bottom:16px;max-width:720px;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.compare-table{width:100%;min-width:520px;border-collapse:collapse;font-size:12px;}
.compare-table th{text-align:left;font-family:'IBM Plex Mono',monospace;font-size:10px;letter-spacing:0.06em;text-transform:uppercase;color:var(--muted);padding:8px 10px;border-bottom:1px solid var(--border);}
.compare-table td{padding:9px 10px;border-bottom:1px solid rgba(207,185,145,0.06);color:var(--ink);}
.compare-row-active{background:rgba(207,185,145,0.06);}
.compare-row-active td:first-child{color:var(--gold-bright);font-weight:600;}

/* ---- CPM network diagram ---- */
.cpm-wrap{border:1px solid var(--border);background:var(--bg-panel);padding:20px 24px;margin-bottom:24px;}
.cpm-head{display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:8px;}
.cpm-head h2{font-family:'Space Grotesk',sans-serif;font-size:16px;margin:0;letter-spacing:0.01em;display:flex;align-items:center;}
.cpm-badge{font-family:'IBM Plex Mono',monospace;font-size:10.5px;color:var(--gold-bright);border:1px solid var(--gold-bright);padding:2px 8px;white-space:nowrap;}
.cpm-note{font-size:12px;color:var(--muted);line-height:1.6;margin-bottom:16px;max-width:820px;}
.cpm-scroll{overflow-x:auto;border:1px solid var(--border);background:
  linear-gradient(var(--grid-line) 1px, transparent 1px) 0 0/40px 40px,
  linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) 0 0/40px 40px,
  var(--bg);
}
.cpm-node rect{transition:filter 0.15s ease;}
.cpm-node:hover rect{filter:brightness(1.3);}
.cpm-node text{pointer-events:none;}

.cpm-view-toggle{display:inline-flex;border:1px solid var(--border);}
.cpm-view-toggle button{
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:0.05em;text-transform:uppercase;
  background:none;border:none;color:var(--muted);padding:6px 12px;cursor:pointer;
}
.cpm-view-toggle button + button{border-left:1px solid var(--border);}
.cpm-view-toggle button.active{background:var(--gold-bright);color:var(--bg);}
.cpm-view-toggle button:hover:not(.active){color:var(--gold-bright);}

#cpmDiagram3D{
  display:none;
  position:relative;
  width:100%;height:440px;
  background:radial-gradient(ellipse at 50% 40%, rgba(207,185,145,0.06), transparent 70%), var(--bg);
  cursor:grab;
}
#cpmDiagram3D:active{cursor:grabbing;}
#cpmDiagram3D canvas{display:block;}
.cpm3d-tooltip{
  position:absolute;left:0;top:0;pointer-events:none;opacity:0;
  background:var(--bg-panel-raised);border:1px solid var(--gold);color:var(--ink);
  font-family:'IBM Plex Mono',monospace;font-size:10.5px;line-height:1.6;
  padding:6px 10px;max-width:240px;white-space:normal;z-index:5;
  transition:opacity 0.1s ease;
}
.cpm3d-hint{font-size:10.5px;color:var(--muted-dim);margin-top:8px;font-family:'IBM Plex Mono',monospace;}

footer.site-footer{border-top:1px solid var(--border);padding:36px 0 50px;}
footer.site-footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;}
footer.site-footer p{font-size:11px;color:var(--muted-dim);line-height:1.7;max-width:640px;margin:0;}
footer.site-footer a{color:var(--muted);}

/* ============================================================
   Mobile-first responsive pass (planner.html)
   ============================================================ */
@media(max-width:900px){
  .semgrid{grid-template-columns:repeat(2,1fr);}
  .dash{grid-template-columns:repeat(2,1fr);}
  .titleblock{grid-template-columns:1fr;}
}
@media(max-width:768px){
  .wrap{padding:0 14px;}
  body{font-size:14px;}
  .titleblock-main{padding:16px 16px;border-right:none;border-bottom:1px solid var(--border);}
  .titleblock-meta{grid-template-columns:1fr 1fr;}
  h1#programLabel{font-size:20px;}
  .major-select{flex-direction:column;align-items:flex-start;gap:8px;}
  .optimizer,.progress-wrap,.current-wrap,.sens-wrap,.compare-wrap,.tt-wrap,.cal-wrap,.assign-wrap,.cpm-wrap{padding:16px 14px;}
  .slider-row{flex-wrap:wrap;gap:10px;}
  .cal-months{gap:12px;justify-content:center;}
  .cal-month{width:150px;}
  .tt-meeting-row{gap:6px;padding-left:8px;}
  .tt-meeting-label-input,.tt-meeting-room-input{width:84px;}
  .tt-day-btn{width:22px;height:22px;font-size:9px;}
  .current-course-row,.tt-course-row{flex-direction:column;align-items:flex-start;}
  .assign-controls{flex-direction:column;align-items:stretch;}
  .assign-filters{justify-content:flex-start;}
  .assign-wrap .cal-export-btn{width:100%;justify-content:center;}
  .cal-export-btn{width:100%;justify-content:center;}
  .legend{gap:10px 16px;}
}
@media(max-width:560px){
  .semgrid{grid-template-columns:1fr;}
  .dash{grid-template-columns:repeat(2,1fr);}
  .titleblock-meta{grid-template-columns:1fr;}
  .meta-cell:nth-child(odd){border-right:none;}
  .nav-links{gap:12px;}
  .req-row-top{flex-wrap:wrap;gap:4px;}
  .stat-value{font-size:21px;}
  .cal-month{width:130px;}
  .assign-date{white-space:normal;}
}


/* ============================================================
   Test suite page (tests.html)
   ============================================================ */
.test-page{padding:56px 0 80px;}
.test-title{font-family:'Space Grotesk',sans-serif;font-size:32px;font-weight:700;margin:0 0 14px;letter-spacing:-0.01em;}
.test-intro{color:var(--muted);line-height:1.65;margin:0 0 28px;max-width:640px;}
.test-intro code{font-family:'IBM Plex Mono',monospace;font-size:0.92em;color:var(--gold-bright);background:var(--bg-panel);padding:1px 5px;border-radius:4px;}
.test-summary{
  font-family:'IBM Plex Mono',monospace;font-size:14px;font-weight:600;
  padding:14px 18px;background:var(--bg-panel);border:1px solid var(--border);border-radius:10px;
  margin-bottom:18px;letter-spacing:0.01em;
}
.test-summary .all-pass{color:var(--complete);}
.test-summary .has-fail{color:var(--danger);}
.test-results{display:flex;flex-direction:column;gap:1px;border:1px solid var(--border);border-radius:10px;overflow:hidden;}
.test-row{
  display:flex;align-items:flex-start;gap:10px;flex-wrap:wrap;
  padding:10px 16px;background:var(--bg-panel);font-family:'IBM Plex Mono',monospace;font-size:12.5px;
}
.test-row.ok{color:var(--muted);}
.test-row.fail{background:rgba(181,80,47,0.08);color:var(--ink);}
.test-icon{flex:0 0 auto;font-weight:700;width:16px;text-align:center;}
.test-row.ok .test-icon{color:var(--complete);}
.test-row.fail .test-icon{color:var(--danger);}
.test-name{flex:1 1 auto;min-width:0;}
.test-error{
  flex-basis:100%;color:var(--danger);font-size:11.5px;line-height:1.5;
  padding:6px 0 0 26px;word-break:break-word;
}
@media(max-width:640px){
  .test-title{font-size:26px;}
  .test-row{font-size:11.5px;padding:9px 12px;}
}

/* ============================================================
   Data-accuracy notice banner (planner.html, above titleblock)
   ============================================================ */
.data-notice{
  display:flex;align-items:flex-start;gap:10px;
  margin:14px 0 18px;padding:11px 16px;
  background:rgba(207,185,145,0.07);border:1px solid var(--border);border-radius:10px;
  font-family:'IBM Plex Sans',sans-serif;font-size:12.5px;line-height:1.55;color:var(--muted);
}
.data-notice .icon-inline{flex:0 0 auto;width:16px;height:16px;color:var(--gold);margin-top:1px;}
.data-notice a{color:var(--gold-bright);}
.data-notice a:hover{text-decoration:none;}
@media(max-width:640px){
  .data-notice{font-size:11.5px;padding:10px 12px;}
}