/* ============================================
   EduGPT App — Parent / Student / Educator
   Matches marketing site aesthetic
   ============================================ */

:root {
  --bg: #070a14;
  --bg-elevated: #0e1424;
  --bg-soft: #f6f7fc;
  --bg-card: #ffffff;
  --ink: #0f172a;
  --ink-soft: #475569;
  --ink-muted: #64748b;
  --line: rgba(15, 23, 42, 0.08);
  --line-strong: rgba(15, 23, 42, 0.14);
  --indigo: #6366f1;
  --indigo-deep: #4f46e5;
  --violet: #8b5cf6;
  --teal: #14b8a6;
  --teal-soft: #5eead4;
  --amber: #f59e0b;
  --rose: #f43f5e;
  --white: #ffffff;
  --radius: 20px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --shadow: 0 20px 50px -20px rgba(15, 23, 42, 0.25);
  --shadow-soft: 0 8px 30px -12px rgba(15, 23, 42, 0.12);
  --font: "Outfit", system-ui, sans-serif;
  --display: "Fraunces", Georgia, serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --sidebar-w: 260px;
  --topbar-h: 68px;
  --role-parent: #6366f1;
  --role-student: #14b8a6;
  --role-educator: #f59e0b;
  --role-admin: #64748b;
}

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

html, body {
  height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg-soft);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body { overflow: hidden; }

button, input, select, textarea { font: inherit; }
button { cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

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

/* Shared logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.logo-mark { width: 34px; height: 34px; display: grid; place-items: center; }
.logo-mark svg { width: 34px; height: 34px; }
.logo-text span { color: var(--indigo); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  font-weight: 600;
  border-radius: 999px;
  padding: .65rem 1.15rem;
  font-size: .92rem;
  transition: transform .2s var(--ease), box-shadow .2s, background .2s, border-color .2s, color .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-sm { padding: .45rem .9rem; font-size: .84rem; }
.btn-lg { padding: .85rem 1.35rem; }
.btn-primary {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #fff;
  box-shadow: 0 10px 28px -12px rgba(99,102,241,.65);
}
.btn-primary:hover { box-shadow: 0 14px 32px -10px rgba(99,102,241,.75); }
.btn-teal {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
  color: #fff;
  box-shadow: 0 10px 28px -12px rgba(20,184,166,.55);
}
.btn-amber {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  box-shadow: 0 10px 28px -12px rgba(245,158,11,.5);
}
.btn-secondary {
  background: #fff;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
}
.btn-ghost {
  color: var(--ink-soft);
  border: 1px solid transparent;
}
.btn-ghost:hover { background: rgba(15,23,42,.05); color: var(--ink); }
.btn-block { width: 100%; }

/* ========== ROLE GATE ========== */
.role-gate {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 2rem 1.25rem;
  position: relative;
  overflow: auto;
  background:
    radial-gradient(1000px 500px at 15% -10%, rgba(99,102,241,.18), transparent 55%),
    radial-gradient(800px 400px at 90% 20%, rgba(20,184,166,.12), transparent 50%),
    linear-gradient(180deg, #eef0ff 0%, var(--bg-soft) 70%);
}
.gate-bg { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .45;
}
.orb-1 {
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(99,102,241,.5), transparent 70%);
  top: -60px; left: -40px;
}
.orb-2 {
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(20,184,166,.4), transparent 70%);
  bottom: 0; right: -60px;
}
.gate-inner {
  position: relative;
  z-index: 1;
  width: min(100%, 1200px);
  text-align: center;
}
.gate-logo { margin-bottom: 1.75rem; }
.gate-inner h1 {
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: .75rem;
}
.gate-lead {
  color: var(--ink-soft);
  max-width: 34rem;
  margin: 0 auto 2.25rem;
  font-size: 1.05rem;
}
.role-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.15rem;
  text-align: left;
}
.role-cards-4 {
  grid-template-columns: repeat(4, 1fr);
}
@media (max-width: 1100px) {
  .role-cards-4 { grid-template-columns: repeat(2, 1fr); }
}
.role-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  box-shadow: var(--shadow-soft);
  text-align: left;
  transition: transform .3s var(--ease), box-shadow .3s, border-color .3s;
  display: flex;
  flex-direction: column;
  min-height: 280px;
  cursor: pointer;
  color: inherit;
  text-decoration: none;
  -webkit-user-select: none;
  user-select: none;
}
a.role-card:focus-visible {
  outline: 3px solid rgba(99,102,241,.45);
  outline-offset: 3px;
}

/* Visibility helpers — stronger than display:grid on .app-shell */
.is-hidden,
[hidden] {
  display: none !important;
}
.role-gate:not(.is-hidden):not([hidden]) {
  display: grid;
}
.app-shell:not(.is-hidden):not([hidden]) {
  display: grid;
}
.role-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(99,102,241,.25);
}
.role-card.featured {
  background:
    radial-gradient(400px 200px at 100% 0%, rgba(20,184,166,.12), transparent 60%),
    #fff;
  border-color: rgba(20,184,166,.25);
}
.role-badge {
  position: absolute;
  top: 1rem; right: 1rem;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: rgba(20,184,166,.12);
  color: #0f766e;
  padding: .3rem .6rem;
  border-radius: 999px;
}
.role-icon {
  width: 52px; height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  margin-bottom: 1.1rem;
}
.role-icon svg { width: 28px; height: 28px; }
.parent-icon { background: rgba(99,102,241,.12); color: var(--indigo-deep); }
.student-icon { background: rgba(20,184,166,.12); color: #0f766e; }
.educator-icon { background: rgba(245,158,11,.14); color: #b45309; }
.admin-icon { background: rgba(15,23,42,.1); color: #0f172a; }
.role-card.admin-card {
  background:
    radial-gradient(400px 200px at 100% 0%, rgba(15,23,42,.08), transparent 60%),
    #fff;
  border-color: rgba(15,23,42,.12);
}
.admin-badge {
  background: rgba(15,23,42,.08) !important;
  color: #334155 !important;
}
.role-card[data-role="admin"] .role-cta { color: #334155; }
.role-card h2 {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  margin-bottom: .45rem;
}
.role-card p {
  color: var(--ink-soft);
  font-size: .95rem;
  flex: 1;
}
.role-cta {
  display: inline-flex;
  margin-top: 1.25rem;
  font-weight: 600;
  font-size: .92rem;
  color: var(--indigo-deep);
}
.role-card.featured .role-cta { color: #0f766e; }
.role-card[data-role="educator"] .role-cta { color: #b45309; }
.gate-note {
  margin-top: 1.75rem;
  font-size: .85rem;
  color: var(--ink-muted);
}

/* ========== APP SHELL ========== */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100%;
  background: var(--bg-soft);
}

/* Sidebar */
.sidebar {
  background: linear-gradient(180deg, #0f172a 0%, #11172a 50%, #0c1220 100%);
  color: #c5cbe0;
  display: flex;
  flex-direction: column;
  padding: 1.15rem 1rem 1rem;
  border-right: 1px solid rgba(255,255,255,.06);
  z-index: 40;
}
.sidebar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding: 0 .35rem;
}
.sidebar .logo-text { color: #fff; }
.sidebar .logo-text span { color: #a5b4fc; }
.sidebar-close {
  display: none;
  width: 36px; height: 36px;
  border-radius: 10px;
  color: #fff;
  font-size: 1.4rem;
  line-height: 1;
}
.sidebar-close:hover { background: rgba(255,255,255,.08); }

.role-chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin: 0 .35rem 1.25rem;
  padding: .4rem .75rem;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  width: fit-content;
}
.role-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--indigo);
  box-shadow: 0 0 0 3px rgba(99,102,241,.25);
}
[data-active-role="parent"] .role-dot { background: var(--role-parent); box-shadow: 0 0 0 3px rgba(99,102,241,.25); }
[data-active-role="student"] .role-dot { background: var(--role-student); box-shadow: 0 0 0 3px rgba(20,184,166,.25); }
[data-active-role="educator"] .role-dot { background: var(--role-educator); box-shadow: 0 0 0 3px rgba(245,158,11,.25); }
[data-active-role="admin"] .role-dot { background: #94a3b8; box-shadow: 0 0 0 3px rgba(148,163,184,.3); }

.side-nav {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  flex: 1;
  overflow-y: auto;
}
.nav-section {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #6b738c;
  padding: .85rem .75rem .35rem;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .7rem .75rem;
  border-radius: 12px;
  color: #a8b0c8;
  font-weight: 500;
  font-size: .93rem;
  transition: background .15s, color .15s;
  text-align: left;
  width: 100%;
}
.nav-item svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  opacity: .85;
}
.nav-item:hover {
  background: rgba(255,255,255,.06);
  color: #e8ecf8;
}
.nav-item.active {
  background: rgba(99,102,241,.22);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(99,102,241,.3);
}
[data-active-role="student"] .nav-item.active {
  background: rgba(20,184,166,.18);
  box-shadow: inset 0 0 0 1px rgba(20,184,166,.3);
}
[data-active-role="educator"] .nav-item.active {
  background: rgba(245,158,11,.16);
  box-shadow: inset 0 0 0 1px rgba(245,158,11,.3);
}
[data-active-role="admin"] .nav-item.active {
  background: rgba(148,163,184,.18);
  box-shadow: inset 0 0 0 1px rgba(148,163,184,.35);
}
.nav-item .nav-count {
  margin-left: auto;
  font-size: .72rem;
  font-weight: 700;
  background: rgba(255,255,255,.1);
  padding: .15rem .45rem;
  border-radius: 999px;
  color: #c5cbe0;
}

.sidebar-footer {
  padding-top: .75rem;
  border-top: 1px solid rgba(255,255,255,.06);
  margin-top: .5rem;
}
.switch-role-btn {
  display: flex;
  align-items: center;
  gap: .55rem;
  width: 100%;
  padding: .7rem .75rem;
  border-radius: 12px;
  color: #a8b0c8;
  font-weight: 500;
  font-size: .9rem;
}
.switch-role-btn:hover {
  background: rgba(255,255,255,.06);
  color: #fff;
}

/* Main */
.app-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100%;
  overflow: hidden;
}

.topbar {
  height: var(--topbar-h);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1.5rem;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}
.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
}
.menu-btn span {
  display: block;
  width: 18px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
}
.menu-btn:hover { background: rgba(15,23,42,.05); }
.topbar-title { flex: 1; min-width: 0; }
.topbar-title h1 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.page-sub {
  font-size: .82rem;
  color: var(--ink-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: .55rem;
}
.search-box {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .45rem .9rem;
  color: var(--ink-muted);
  min-width: 200px;
}
.search-box input {
  border: none;
  background: transparent;
  outline: none;
  width: 100%;
  color: var(--ink);
  font-size: .9rem;
}
.icon-btn {
  position: relative;
  width: 40px; height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--ink-soft);
}
.icon-btn:hover { background: rgba(15,23,42,.05); color: var(--ink); }
.badge-dot {
  position: absolute;
  top: 9px; right: 10px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--rose);
  border: 2px solid #fff;
}
.user-menu { position: relative; }
.user-btn {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .3rem .45rem .3rem .3rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  transition: box-shadow .2s;
}
.user-btn:hover { box-shadow: var(--shadow-soft); }
.avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: .8rem;
  color: #fff;
  background: linear-gradient(135deg, var(--indigo), var(--violet));
}
.user-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  line-height: 1.15;
  text-align: left;
}
.user-meta strong { font-size: .85rem; }
.user-meta small { font-size: .72rem; color: var(--ink-muted); }
.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: .4rem;
  z-index: 50;
  display: grid;
}
.user-dropdown button,
.user-dropdown a {
  text-align: left;
  padding: .65rem .8rem;
  border-radius: 10px;
  font-size: .9rem;
  color: var(--ink-soft);
}
.user-dropdown button:hover,
.user-dropdown a:hover {
  background: var(--bg-soft);
  color: var(--ink);
}

.content {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  scroll-behavior: smooth;
}

/* ========== VIEW LAYOUT ========== */
.view {
  max-width: 1200px;
  margin: 0 auto;
  animation: viewIn .35s var(--ease);
}
@keyframes viewIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.grid-2 { display: grid; grid-template-columns: 1.4fr 1fr; gap: 1.15rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.stack { display: grid; gap: 1rem; }
.span-2 { grid-column: span 2; }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow-soft);
}
.card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.card-head h2,
.card-head h3 {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  font-weight: 600;
}
.card-head p {
  font-size: .85rem;
  color: var(--ink-muted);
  margin-top: .15rem;
}

.stat-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.15rem;
  box-shadow: var(--shadow-soft);
}
.stat-card .label {
  font-size: .8rem;
  font-weight: 500;
  color: var(--ink-muted);
  margin-bottom: .35rem;
}
.stat-card .value {
  font-family: var(--display);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--ink);
  line-height: 1.1;
}
.stat-card .delta {
  font-size: .78rem;
  font-weight: 600;
  margin-top: .35rem;
}
.delta.up { color: #0f766e; }
.delta.neutral { color: var(--ink-muted); }

.tag {
  display: inline-flex;
  align-items: center;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .03em;
  text-transform: uppercase;
  padding: .28rem .55rem;
  border-radius: 999px;
  background: rgba(99,102,241,.1);
  color: var(--indigo-deep);
}
.tag.teal { background: rgba(20,184,166,.12); color: #0f766e; }
.tag.amber { background: rgba(245,158,11,.14); color: #b45309; }
.tag.rose { background: rgba(244,63,94,.1); color: #be123c; }
.tag.slate { background: rgba(15,23,42,.06); color: var(--ink-soft); }

/* Child / person chips */
.person-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .85rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
  text-align: left;
  width: 100%;
}
.person-row:hover {
  border-color: rgba(99,102,241,.3);
  box-shadow: var(--shadow-soft);
}
.person-row.active {
  border-color: rgba(99,102,241,.45);
  background: linear-gradient(135deg, rgba(99,102,241,.06), rgba(139,92,246,.04));
}
.person-av {
  width: 42px; height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
  font-size: .9rem;
}
.person-av.a { background: linear-gradient(135deg, #6366f1, #8b5cf6); }
.person-av.b { background: linear-gradient(135deg, #14b8a6, #0d9488); }
.person-av.c { background: linear-gradient(135deg, #f59e0b, #ea580c); }
.person-av.d { background: linear-gradient(135deg, #f43f5e, #e11d48); }
.person-meta { flex: 1; min-width: 0; }
.person-meta strong { display: block; font-size: .95rem; }
.person-meta small { color: var(--ink-muted); font-size: .8rem; }
.person-progress {
  width: 72px;
  text-align: right;
}
.person-progress .bar {
  height: 6px;
  background: var(--bg-soft);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: .25rem;
}
.person-progress .bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--indigo), var(--teal));
  border-radius: inherit;
}
.person-progress span {
  font-size: .72rem;
  font-weight: 600;
  color: var(--ink-muted);
}

/* Path list */
.path-list { display: grid; gap: .5rem; }
.path-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .75rem .85rem;
  border-radius: 14px;
  background: var(--bg-soft);
  border: 1px solid transparent;
}
.path-item.done { opacity: .75; }
.path-item.active {
  background: rgba(99,102,241,.08);
  border-color: rgba(99,102,241,.2);
}
.path-item .pi-icon {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: .85rem;
  flex-shrink: 0;
  background: #fff;
  border: 1px solid var(--line);
}
.path-item.done .pi-icon {
  background: rgba(20,184,166,.12);
  border-color: transparent;
  color: #0f766e;
}
.path-item.active .pi-icon {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #fff;
  border-color: transparent;
}
.path-item .pi-body { flex: 1; min-width: 0; }
.path-item .pi-body strong { display: block; font-size: .9rem; }
.path-item .pi-body small { color: var(--ink-muted); font-size: .78rem; }
.path-item .pi-time {
  font-size: .78rem;
  font-weight: 600;
  color: var(--ink-muted);
}

/* Plan builder */
.builder-layout {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  gap: 1rem;
  min-height: 520px;
}
.builder-col {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.builder-col h3 {
  font-size: .95rem;
  letter-spacing: -0.01em;
}
.builder-col .hint {
  font-size: .8rem;
  color: var(--ink-muted);
}
.field { display: grid; gap: .35rem; }
.field label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: .65rem .8rem;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg-soft);
  color: var(--ink);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(99,102,241,.5);
  box-shadow: 0 0 0 3px rgba(99,102,241,.15);
  background: #fff;
}
.field textarea { min-height: 80px; resize: vertical; }

.topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.topic-chip {
  padding: .4rem .7rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-size: .8rem;
  font-weight: 500;
  color: var(--ink-soft);
  background: #fff;
  transition: .15s;
}
.topic-chip:hover,
.topic-chip.selected {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #fff;
  border-color: transparent;
}

.week-plan {
  display: grid;
  gap: .55rem;
  flex: 1;
}
.week-row {
  display: grid;
  grid-template-columns: 72px 1fr auto;
  gap: .6rem;
  align-items: center;
  padding: .65rem .75rem;
  border-radius: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  cursor: grab;
}
.week-row:active { cursor: grabbing; }
.week-row .day {
  font-weight: 700;
  font-size: .8rem;
  color: var(--indigo-deep);
}
.week-row .subj {
  font-size: .88rem;
  font-weight: 500;
}
.week-row .hrs {
  font-size: .78rem;
  font-weight: 600;
  color: var(--ink-muted);
  background: #fff;
  padding: .25rem .5rem;
  border-radius: 8px;
  border: 1px solid var(--line);
}
.slider-row {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.slider-row input[type="range"] {
  flex: 1;
  accent-color: var(--indigo);
}
.slider-row span {
  font-size: .85rem;
  font-weight: 600;
  min-width: 3ch;
  color: var(--indigo-deep);
}

/* Lesson / chat */
.lesson-layout {
  display: grid;
  grid-template-columns: 240px 1fr 260px;
  gap: 1rem;
  height: calc(100vh - var(--topbar-h) - 3rem);
  min-height: 480px;
}
.lesson-panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.lesson-panel .panel-head {
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}
.lesson-panel .panel-head h3 { font-size: .95rem; }
.lesson-panel .panel-head small { color: var(--ink-muted); font-size: .78rem; }
.lesson-panel .panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.chat-area {
  display: flex;
  flex-direction: column;
  height: 100%;
  background:
    radial-gradient(600px 300px at 0% 0%, rgba(99,102,241,.08), transparent 50%),
    #0f172a;
  color: #e8ecf8;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,.08);
  overflow: hidden;
}
.chat-top {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1rem 1.15rem;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
}
.tutor-face {
  width: 42px; height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #6366f1, #14b8a6);
  display: grid;
  place-items: center;
  font-size: 1rem;
  color: #fff;
  position: relative;
}
.tutor-face .online {
  position: absolute;
  right: -2px; bottom: -2px;
  width: 10px; height: 10px;
  background: #22c55e;
  border: 2px solid #0f172a;
  border-radius: 50%;
}
.chat-top strong { display: block; color: #fff; font-size: .95rem; }
.chat-top small { color: #8b93ab; font-size: .78rem; }
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
}
.bubble {
  max-width: 88%;
  padding: .8rem .95rem;
  border-radius: 16px;
  font-size: .9rem;
  line-height: 1.5;
}
.bubble.tutor {
  background: rgba(99,102,241,.2);
  border: 1px solid rgba(99,102,241,.28);
  border-top-left-radius: 4px;
  color: #e0e7ff;
  align-self: flex-start;
}
.bubble.student {
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.1);
  border-top-right-radius: 4px;
  color: #eef1fa;
  align-self: flex-end;
}
.bubble.success {
  background: rgba(20,184,166,.15);
  border-color: rgba(20,184,166,.3);
  color: #ccfbf1;
}
.chat-input-bar {
  display: flex;
  gap: .5rem;
  padding: .85rem 1rem;
  border-top: 1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.2);
}
.chat-input-bar input {
  flex: 1;
  padding: .75rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.06);
  color: #fff;
  outline: none;
}
.chat-input-bar input::placeholder { color: #6b738c; }
.chat-input-bar input:focus {
  border-color: rgba(99,102,241,.5);
  box-shadow: 0 0 0 3px rgba(99,102,241,.2);
}
.chat-input-bar .send-btn {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  padding: 0 1rem .75rem;
}
.quick-replies button {
  padding: .4rem .7rem;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 500;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  color: #c5cbe0;
}
.quick-replies button:hover {
  background: rgba(99,102,241,.25);
  border-color: rgba(99,102,241,.35);
  color: #fff;
}

/* Mastery ring */
.mastery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: .75rem;
}
.mastery-item {
  text-align: center;
  padding: 1rem .75rem;
  border-radius: 14px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}
.ring {
  width: 64px; height: 64px;
  margin: 0 auto .6rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: .85rem;
  background: conic-gradient(var(--indigo) calc(var(--p) * 1%), #e2e8f0 0);
  position: relative;
}
.ring::after {
  content: "";
  position: absolute;
  inset: 6px;
  background: #fff;
  border-radius: 50%;
}
.ring span { position: relative; z-index: 1; }
.mastery-item strong {
  display: block;
  font-size: .85rem;
  margin-bottom: .15rem;
}
.mastery-item small { color: var(--ink-muted); font-size: .75rem; }

/* Recap cards */
.recap-list { display: grid; gap: .75rem; }
.recap-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
}
.recap-card .when {
  font-size: .78rem;
  font-weight: 600;
  color: var(--ink-muted);
  min-width: 72px;
}
.recap-card strong { display: block; font-size: .95rem; }
.recap-card p {
  font-size: .85rem;
  color: var(--ink-soft);
  margin-top: .2rem;
}

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
}
.data-table th {
  text-align: left;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: .65rem .75rem;
  border-bottom: 1px solid var(--line);
}
.data-table td {
  padding: .85rem .75rem;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: 0; }
.data-table tr:hover td { background: rgba(99,102,241,.03); }

/* Empty / note callouts */
.callout {
  display: flex;
  gap: .75rem;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  background: rgba(99,102,241,.06);
  border: 1px solid rgba(99,102,241,.15);
  font-size: .9rem;
  color: var(--ink-soft);
}
.callout.amber {
  background: rgba(245,158,11,.08);
  border-color: rgba(245,158,11,.2);
}
.callout strong { color: var(--ink); }

/* Empty educator optional */
.optional-banner {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  border-radius: var(--radius);
  background:
    radial-gradient(400px 200px at 100% 0%, rgba(245,158,11,.12), transparent 60%),
    #fff;
  border: 1px solid rgba(245,158,11,.2);
  margin-bottom: 1.15rem;
  box-shadow: var(--shadow-soft);
}
.optional-banner .ob-icon {
  width: 44px; height: 44px;
  border-radius: 14px;
  background: rgba(245,158,11,.14);
  color: #b45309;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}
.optional-banner h3 { font-size: 1rem; margin-bottom: .25rem; }
.optional-banner p { font-size: .9rem; color: var(--ink-soft); }

/* Hero welcome strip */
.welcome-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding: 1.5rem 1.6rem;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(500px 250px at 0% 0%, rgba(99,102,241,.35), transparent 55%),
    radial-gradient(400px 200px at 100% 100%, rgba(20,184,166,.2), transparent 50%),
    linear-gradient(145deg, #0f172a, #1e1b4b 60%, #0f172a);
  color: #e8ecf8;
  margin-bottom: 1.15rem;
  box-shadow: 0 24px 50px -28px rgba(15,23,42,.55);
  border: 1px solid rgba(255,255,255,.08);
}
.welcome-strip h2 {
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.5vw, 1.7rem);
  font-weight: 600;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: .35rem;
}
.welcome-strip p {
  color: #a8b0c8;
  font-size: .95rem;
  max-width: 36rem;
}
.welcome-strip .actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

/* Settings form rows */
.settings-list { display: grid; gap: 0; }
.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.settings-row:last-child { border-bottom: 0; }
.settings-row strong { display: block; font-size: .95rem; }
.settings-row small { color: var(--ink-muted); font-size: .82rem; }
.toggle {
  width: 44px; height: 26px;
  border-radius: 999px;
  background: #cbd5e1;
  position: relative;
  transition: background .2s;
  flex-shrink: 0;
}
.toggle.on { background: var(--indigo); }
.toggle::after {
  content: "";
  position: absolute;
  top: 3px; left: 3px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
  transition: transform .2s var(--ease);
}
.toggle.on::after { transform: translateX(18px); }

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #0f172a;
  color: #fff;
  padding: .75rem 1.25rem;
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 500;
  box-shadow: var(--shadow);
  z-index: 100;
  opacity: 0;
  transition: opacity .3s, transform .3s var(--ease);
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Overlay for mobile sidebar */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.45);
  z-index: 35;
}
.sidebar-overlay.show { display: block; }

/* ========== PATH CALENDAR ========== */
.view-wide { max-width: 1280px; }

.path-view-bar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.15rem;
}
.inline-title {
  font-family: var(--display);
  font-size: 1.45rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.bar-sub {
  font-size: .9rem;
  color: var(--ink-muted);
  margin-top: .2rem;
}

.view-toggle {
  display: inline-flex;
  padding: .25rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  gap: .15rem;
}
.vt-btn {
  padding: .5rem 1rem;
  border-radius: 999px;
  font-size: .88rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: .2s;
}
.vt-btn:hover { color: var(--ink); }
.vt-btn.active {
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  color: #fff;
  box-shadow: 0 6px 16px -8px rgba(99,102,241,.7);
}
[data-active-role="student"] .vt-btn.active {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
  box-shadow: 0 6px 16px -8px rgba(20,184,166,.55);
}
[data-active-role="educator"] .vt-btn.active {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  box-shadow: 0 6px 16px -8px rgba(245,158,11,.5);
}

.path-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: .75rem;
}
.path-preview-card {
  text-align: left;
  padding: 1rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  display: flex;
  flex-direction: column;
  gap: .4rem;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.path-preview-card:hover {
  border-color: rgba(99,102,241,.35);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}
.path-preview-card strong {
  font-size: .95rem;
  letter-spacing: -0.01em;
}
.path-preview-card small {
  color: var(--ink-muted);
  font-size: .8rem;
}
.ppc-cta {
  margin-top: .35rem;
  font-size: .85rem;
  font-weight: 600;
  color: var(--indigo-deep);
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.cal-nav {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
}
.cal-month-label {
  font-family: var(--display);
  font-size: 1.2rem;
  font-weight: 600;
  min-width: 10rem;
  text-align: center;
  letter-spacing: -0.02em;
}
.cal-hint {
  font-size: .85rem;
  color: var(--ink-muted);
}
.calendar-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1rem;
  align-items: start;
}
.calendar-main {
  padding: 1rem;
  overflow: hidden;
}
.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: .35rem;
  margin-bottom: .35rem;
}
.cal-weekdays span {
  text-align: center;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: .35rem 0;
}
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: .35rem;
}
.cal-day {
  min-height: 96px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: .4rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
  transition: border-color .15s, background .15s;
}
.cal-day.outside {
  opacity: .45;
  background: #fafbfe;
}
.cal-day.today {
  border-color: rgba(99,102,241,.45);
  box-shadow: inset 0 0 0 1px rgba(99,102,241,.2);
  background: rgba(99,102,241,.06);
}
.cal-day.has-events { background: #fff; }
.cal-day-num {
  font-size: .78rem;
  font-weight: 700;
  color: var(--ink-soft);
  padding: 0 .15rem;
}
.cal-day.today .cal-day-num {
  display: inline-flex;
  width: 22px; height: 22px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--indigo);
  color: #fff;
  font-size: .72rem;
}
.cal-events {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  min-height: 0;
}
.cal-event {
  display: block;
  width: 100%;
  text-align: left;
  font-size: .65rem;
  font-weight: 600;
  line-height: 1.25;
  padding: .22rem .35rem;
  border-radius: 6px;
  border: none;
  color: #1e1b4b;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s;
}
.cal-event:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 10px -6px rgba(15,23,42,.35);
}
.cal-event.selected {
  outline: 2px solid var(--ink);
  outline-offset: 1px;
}
.cal-indigo { background: #c7d2fe; color: #312e81; }
.cal-teal { background: #99f6e4; color: #115e59; }
.cal-amber { background: #fde68a; color: #92400e; }
.cal-rose { background: #fecdd3; color: #9f1239; }
.cal-violet { background: #ddd6fe; color: #5b21b6; }
.cal-more {
  font-size: .65rem;
  font-weight: 600;
  color: var(--ink-muted);
  padding-left: .2rem;
}
.cal-legend {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .85rem;
  margin-top: 1rem;
  padding-top: .85rem;
  border-top: 1px solid var(--line);
}
.cal-legend-item {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .8rem;
  font-weight: 500;
  color: var(--ink-soft);
}
.cal-legend-item:hover { color: var(--ink); }
.cal-dot {
  width: 10px; height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}
.cal-dot.cal-indigo { background: #818cf8; }
.cal-dot.cal-teal { background: #2dd4bf; }
.cal-dot.cal-amber { background: #fbbf24; }
.cal-dot.cal-rose { background: #fb7185; }
.cal-dot.cal-violet { background: #a78bfa; }

.calendar-side {
  padding: 1.15rem;
  position: sticky;
  top: 0;
  max-height: calc(100vh - var(--topbar-h) - 4rem);
  overflow-y: auto;
}
.path-detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .75rem;
}
.path-detail-head .tag { margin-right: .25rem; margin-bottom: .25rem; }
.path-detail h3 {
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  margin-bottom: .25rem;
}
.path-detail-sub {
  font-size: .88rem;
  color: var(--ink-muted);
  margin-bottom: 1rem;
}
.path-detail-meta {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: .5rem;
  margin-bottom: 1.15rem;
  padding: .75rem;
  border-radius: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}
.path-detail-meta small {
  display: block;
  font-size: .68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ink-muted);
  margin-bottom: .15rem;
}
.path-detail-meta strong {
  font-size: .85rem;
}
.agenda-label {
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: .6rem;
}
.path-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.15rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.path-detail.empty {
  min-height: 280px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1.5rem .5rem;
}
.path-detail-placeholder .pd-icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: .75rem;
}
.path-detail-placeholder h3 {
  font-size: 1.05rem;
  margin-bottom: .35rem;
}
.path-detail-placeholder p {
  font-size: .9rem;
  color: var(--ink-muted);
  max-width: 16rem;
  margin: 0 auto;
}
.detail-close {
  font-size: 1.25rem;
  line-height: 1;
  color: var(--ink-muted);
}

/* Schedule modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  animation: viewIn .25s var(--ease);
}
.modal-card {
  width: min(100%, 480px);
  max-height: min(90vh, 720px);
  overflow-y: auto;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: 0 30px 60px -20px rgba(15,23,42,.45);
  padding: 1.35rem 1.4rem 1.25rem;
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .35rem;
}
.modal-head h3 {
  font-family: var(--display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.modal-lead {
  font-size: .88rem;
  color: var(--ink-muted);
  margin-bottom: 1.1rem;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

/* ========== AI PATH AGENT / PLAN BUILDER ========== */
.builder-layout-ai {
  grid-template-columns: minmax(280px, 0.95fr) minmax(340px, 1.25fr) minmax(240px, 0.85fr);
  align-items: start;
}
.builder-col-ai {
  gap: 1rem;
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}
.builder-col-paths {
  min-height: 420px;
}
.constraints-block {
  /* nested card look inside left column */
}

.ai-agent-card {
  background:
    radial-gradient(500px 220px at 0% 0%, rgba(99,102,241,.14), transparent 55%),
    radial-gradient(400px 180px at 100% 100%, rgba(20,184,166,.1), transparent 50%),
    #fff;
  border: 1px solid rgba(99,102,241,.18);
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem;
  box-shadow: var(--shadow-soft);
}
.ai-agent-card.is-thinking {
  border-color: rgba(245,158,11,.35);
}
.ai-agent-card.is-ready {
  border-color: rgba(20,184,166,.3);
}
.ai-agent-head {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  margin-bottom: 1rem;
}
.ai-agent-head h3 {
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  margin-bottom: .2rem;
}
.ai-agent-head p {
  font-size: .85rem;
  color: var(--ink-soft);
  line-height: 1.45;
}
.ai-agent-head .tag {
  margin-left: auto;
  flex-shrink: 0;
}
.ai-agent-avatar {
  width: 42px; height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--indigo), var(--teal));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 8px 20px -10px rgba(99,102,241,.7);
}
.ai-presets {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: .65rem 0 1rem;
  align-items: center;
}
.ai-presets-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--ink-muted);
  width: 100%;
  margin-bottom: .15rem;
}
.ai-preset-chip {
  font-size: .78rem;
  font-weight: 500;
  padding: .4rem .7rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--bg-soft);
  color: var(--ink-soft);
  text-align: left;
  max-width: 100%;
  transition: .15s;
}
.ai-preset-chip:hover {
  border-color: rgba(99,102,241,.4);
  color: var(--ink);
  background: #fff;
}
.ai-agent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  align-items: center;
}
.ai-agent-actions .btn:disabled {
  opacity: .7;
  cursor: wait;
  transform: none;
}
.ai-thinking {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-top: 1rem;
  padding: .75rem .9rem;
  border-radius: 12px;
  background: rgba(245,158,11,.08);
  border: 1px solid rgba(245,158,11,.2);
  font-size: .85rem;
  color: #92400e;
  font-weight: 500;
}
.ai-dots {
  display: inline-flex;
  gap: 4px;
}
.ai-dots i {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #f59e0b;
  display: block;
  animation: aiPulse 1s ease-in-out infinite;
}
.ai-dots i:nth-child(2) { animation-delay: .15s; }
.ai-dots i:nth-child(3) { animation-delay: .3s; }
@keyframes aiPulse {
  0%, 100% { opacity: .35; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-2px); }
}

.proposed-empty {
  height: 100%;
  min-height: 360px;
  display: grid;
  place-items: center;
  border: 1px dashed rgba(99,102,241,.25);
  border-radius: var(--radius);
  background:
    radial-gradient(400px 200px at 50% 0%, rgba(99,102,241,.06), transparent 60%),
    var(--bg-soft);
}
.proposed-empty-inner {
  text-align: center;
  max-width: 280px;
  padding: 1.5rem;
}
.proposed-empty-inner .pd-icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: .75rem;
}
.proposed-empty-inner h3 {
  font-size: 1.05rem;
  margin-bottom: .4rem;
}
.proposed-empty-inner p {
  font-size: .9rem;
  color: var(--ink-muted);
}

.proposed-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 360px;
}
.proposed-table-head {
  display: grid;
  grid-template-columns: 28px 72px 1fr 88px 64px 72px 32px;
  gap: .4rem;
  padding: 0 .15rem .4rem;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.proposed-list {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  flex: 1;
}
.proposed-row {
  display: grid;
  grid-template-columns: 28px 72px 1fr 88px 64px 72px 32px;
  gap: .4rem;
  align-items: center;
  padding: .45rem;
  border-radius: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  transition: border-color .15s, box-shadow .15s, opacity .15s;
}
.proposed-row.dragging {
  opacity: .5;
}
.proposed-row.drag-over {
  border-color: rgba(99,102,241,.45);
  box-shadow: 0 0 0 2px rgba(99,102,241,.12);
}
.drag-handle {
  cursor: grab;
  color: var(--ink-muted);
  font-size: .75rem;
  letter-spacing: -1px;
  text-align: center;
  user-select: none;
}
.proposed-row input,
.proposed-row select {
  width: 100%;
  padding: .45rem .5rem;
  border-radius: 8px;
  border: 1px solid transparent;
  background: #fff;
  font-size: .82rem;
  color: var(--ink);
  outline: none;
}
.proposed-row input:focus,
.proposed-row select:focus {
  border-color: rgba(99,102,241,.45);
  box-shadow: 0 0 0 2px rgba(99,102,241,.12);
}
.prop-title { font-weight: 550; }
.prop-hours,
.prop-day { font-weight: 600; color: var(--indigo-deep); }
.prop-remove {
  width: 28px; height: 28px;
  border-radius: 8px;
  color: var(--ink-muted);
  font-size: 1.1rem;
  line-height: 1;
  display: grid;
  place-items: center;
}
.prop-remove:hover {
  background: rgba(244,63,94,.1);
  color: #be123c;
}
.proposed-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

/* ========== SUPER ADMIN ========== */
.admin-strip {
  background:
    radial-gradient(500px 250px at 0% 0%, rgba(100,116,139,.35), transparent 55%),
    radial-gradient(400px 200px at 100% 100%, rgba(15,23,42,.5), transparent 50%),
    linear-gradient(145deg, #0f172a, #1e293b 60%, #0f172a) !important;
}
.admin-quick-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .55rem;
}
.admin-quick {
  text-align: left;
  padding: .85rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  font-weight: 600;
  font-size: .9rem;
  transition: .15s;
}
.admin-quick:hover {
  border-color: rgba(15,23,42,.2);
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.env-pill {
  padding: .85rem 1rem;
  border-radius: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
}
.env-pill strong { display: block; margin-bottom: .15rem; }
.env-pill small { color: var(--ink-muted); font-size: .8rem; }

.admin-split {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 1rem;
  align-items: start;
}
.admin-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1rem;
  align-items: center;
}
.admin-search {
  flex: 1;
  min-width: 160px;
  padding: .55rem .85rem;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--bg-soft);
  outline: none;
}
.admin-search:focus {
  border-color: rgba(99,102,241,.45);
  background: #fff;
}
.admin-filter {
  padding: .55rem .75rem;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: #fff;
  font-size: .88rem;
  color: var(--ink-soft);
}
.data-table tr.row-selected td {
  background: rgba(99,102,241,.06);
}
.admin-detail h3 {
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.plan-card .plan-price {
  font-family: var(--display);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: .65rem 0 .25rem;
}
.plan-card .plan-price small {
  font-size: .85rem;
  font-weight: 500;
  color: var(--ink-muted);
  margin-left: .15rem;
}
.usage-bars { display: grid; gap: .85rem; }
.usage-row {
  display: grid;
  grid-template-columns: 110px 1fr 48px;
  gap: .65rem;
  align-items: center;
  font-size: .88rem;
}
.usage-row .bar {
  height: 8px;
  background: var(--bg-soft);
  border-radius: 999px;
  overflow: hidden;
}
.usage-row .bar i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #64748b, #0f172a);
  border-radius: inherit;
}
.usage-row strong { text-align: right; font-size: .85rem; }
.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: .8rem;
  background: var(--bg-soft);
  padding: .15rem .4rem;
  border-radius: 6px;
}
.prompt-list {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  max-height: 560px;
  overflow-y: auto;
}
.prompt-item {
  text-align: left;
  padding: .85rem .9rem;
  border-radius: 12px;
  border: 1px solid transparent;
  background: var(--bg-soft);
  transition: .15s;
}
.prompt-item strong {
  display: block;
  font-size: .9rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  margin-bottom: .2rem;
}
.prompt-item small { color: var(--ink-muted); font-size: .78rem; }
.prompt-item:hover { border-color: var(--line-strong); }
.prompt-item.active {
  background: rgba(15,23,42,.06);
  border-color: rgba(15,23,42,.2);
}
.prompt-body {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: .85rem;
  line-height: 1.5;
  min-height: 220px;
}
@media (max-width: 900px) {
  .admin-split { grid-template-columns: 1fr; }
  .admin-quick-grid { grid-template-columns: 1fr; }
  .usage-row { grid-template-columns: 1fr; gap: .25rem; }
}

/* Student-specific softer accents on path active */
[data-active-role="student"] .path-item.active {
  background: rgba(20,184,166,.1);
  border-color: rgba(20,184,166,.25);
}
[data-active-role="student"] .path-item.active .pi-icon {
  background: linear-gradient(135deg, #14b8a6, #0d9488);
}

/* Responsive */
@media (max-width: 1100px) {
  .builder-layout,
  .builder-layout-ai {
    grid-template-columns: 1fr;
  }
  .proposed-table-head { display: none; }
  .proposed-row {
    grid-template-columns: 28px 1fr 1fr;
    grid-template-rows: auto auto;
  }
  .proposed-row .prop-title { grid-column: 2 / -1; }
  .proposed-row .prop-remove { grid-column: 3; grid-row: 1; justify-self: end; }
  .lesson-layout {
    grid-template-columns: 1fr;
    height: auto;
  }
  .lesson-layout .lesson-panel.side-only {
    max-height: 220px;
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr 1fr;
  }
  .span-2 { grid-column: span 2; }
  .calendar-layout {
    grid-template-columns: 1fr;
  }
  .calendar-side {
    position: static;
    max-height: none;
  }
  .path-cards-row {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(var(--sidebar-w), 88vw);
    transform: translateX(-105%);
    transition: transform .3s var(--ease);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: grid; place-items: center; }
  .menu-btn { display: flex; }
  .role-cards { grid-template-columns: 1fr; }
  .search-box { display: none; }
  .user-meta { display: none; }
  .grid-2, .grid-3, .grid-4, .span-2 {
    grid-template-columns: 1fr;
  }
  .span-2 { grid-column: auto; }
  .welcome-strip { flex-direction: column; align-items: flex-start; }
  .recap-card { grid-template-columns: 1fr; gap: .5rem; }
  .content { padding: 1rem; }
  .path-cards-row { grid-template-columns: 1fr; }
  .cal-day { min-height: 72px; }
  .cal-event { font-size: .6rem; }
  .path-detail-meta { grid-template-columns: 1fr; }
  .cal-month-label { min-width: auto; }
}

@media (prefers-reduced-motion: reduce) {
  .view, .role-card, .btn, .toast { transition: none; animation: none; }
}