:root {
  color-scheme: light;
  --bg: #F8F4EC;
  --surface: #FFFDF8;
  --surface-raised: #EDE3D4;
  --text: #342F29;
  --muted: #665C50;
  --border: #D9CBB8;
  --primary: #9D5E45;
  --primary-hover: #874B35;
  --primary-contrast: #FFFDF8;
  --sage: #687A5D;
  --danger: #9A3E32;
  --danger-surface: #F5E5DF;
  --focus: #6B7F59;
  --shadow: 0 14px 34px rgb(67 51 31 / 8%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111827;
  --surface: #1B2638;
  --surface-raised: #273449;
  --text: #E8EDF4;
  --muted: #A6B3C5;
  --border: #39475B;
  --primary: #8AAED0;
  --primary-hover: #A4C1DE;
  --primary-contrast: #111827;
  --sage: #91B59A;
  --danger: #F0A89B;
  --danger-surface: #3B2930;
  --focus: #A4C1DE;
  --shadow: 0 14px 34px rgb(0 0 0 / 20%);
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }
.app-shell { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.site-header { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--border); }
.theme-toggle { min-height: 40px; display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 10px; padding: 7px 11px; background: var(--surface); color: var(--text); font-size: .83rem; font-weight: 700; }
.theme-toggle:hover { background: var(--surface-raised); }
.theme-toggle:focus-visible, .small-button:focus-visible, .task-action:focus-visible, .text-button:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-size: 1.1rem; font-weight: 800; letter-spacing: -.03em; }
.brand-mark { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 10px; background: var(--primary); color: var(--primary-contrast); font-size: .93rem; }
.header-note, .site-footer { color: var(--muted); font-size: .88rem; }
.main-content { min-height: calc(100vh - 150px); padding: 54px 0 64px; }
.hero { max-width: 710px; margin-bottom: 30px; }
.eyebrow { margin: 0 0 10px; color: var(--sage); font-size: .79rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 14px; font-size: clamp(2.25rem, 6vw, 4.15rem); line-height: 1.03; letter-spacing: -.06em; }
.hero-copy { max-width: 640px; color: var(--muted); font-size: 1.1rem; line-height: 1.65; }
.dashboard-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); align-items: start; gap: 22px; }
.panel { border: 1px solid var(--border); border-radius: 20px; background: var(--surface); box-shadow: var(--shadow); }
.form-panel { padding: clamp(20px, 3vw, 30px); }
.panel-title { margin-bottom: 5px; font-size: 1.23rem; letter-spacing: -.025em; }
.panel-intro { margin-bottom: 24px; color: var(--muted); font-size: .93rem; }
.field { margin: 0 0 19px; }
.field label { display: block; margin-bottom: 7px; font-size: .92rem; font-weight: 720; }
.field input, .field textarea { width: 100%; border: 1px solid var(--border); border-radius: 10px; padding: 12px 13px; background: var(--surface); color: var(--text); outline: none; transition: border-color .16s, box-shadow .16s; }
.field textarea { min-height: 112px; resize: vertical; line-height: 1.5; }
.field input::placeholder, .field textarea::placeholder { color: var(--muted); opacity: .78; }
.field input:focus, .field textarea:focus { border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 22%, transparent); }
.field [aria-invalid="true"] { border-color: var(--danger); }
.field [aria-invalid="true"]:focus { box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 20%, transparent); }
.field-error { margin: 6px 0 0; color: var(--danger); font-size: .83rem; font-weight: 650; }
.field-error[hidden] { display: none; }
.input-unit { display: flex; align-items: center; gap: 10px; }
.input-unit input { max-width: 180px; }
.unit-label { color: var(--muted); font-size: .92rem; }
.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 11px; padding: 11px 17px; background: var(--primary); color: var(--primary-contrast); font-weight: 760; text-decoration: none; transition: background .15s, transform .15s, box-shadow .15s; }
.button:hover { transform: translateY(-1px); background: var(--primary-hover); }
.button:active { transform: translateY(0); }
.button:focus-visible, .text-button:focus-visible, .task-check:focus-visible, summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.button:disabled { cursor: not-allowed; opacity: .55; transform: none; }
.button-full { width: 100%; }
.side-column { display: grid; gap: 20px; }
.preview-panel { overflow: hidden; }
.preview-head { padding: 21px 22px 16px; border-bottom: 1px solid var(--border); }
.preview-head h2 { margin-bottom: 5px; font-size: 1.03rem; }
.preview-head p { margin: 0; color: var(--muted); font-size: .86rem; }
.preview-content { padding: 18px 22px 22px; }
.preview-project { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.preview-icon { width: 40px; height: 40px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 12px; background: var(--surface-raised); color: var(--sage); font-size: 1.1rem; }
.preview-project strong { display: block; font-size: .95rem; }
.preview-project span { display: block; margin-top: 2px; color: var(--muted); font-size: .8rem; }
.progress-heading { display: flex; justify-content: space-between; gap: 12px; font-size: .83rem; }
.progress-heading span:last-child { color: var(--muted); }
.progress-track { height: 9px; margin: 8px 0 18px; overflow: hidden; border-radius: 99px; background: var(--surface-raised); }
.progress-fill { width: 38%; height: 100%; border-radius: inherit; background: var(--sage); }
.mini-task { display: flex; align-items: flex-start; gap: 10px; margin: 12px 0; color: var(--muted); font-size: .85rem; }
.mini-check { width: 17px; height: 17px; display: inline-grid; flex: 0 0 auto; place-items: center; border: 1.5px solid var(--border); border-radius: 5px; color: var(--surface); font-size: .72rem; }
.mini-check.done { border-color: var(--sage); background: var(--sage); }
.stage-pill { display: inline-flex; margin: 3px 4px 0 0; border: 1px solid var(--border); border-radius: 99px; padding: 4px 9px; color: var(--muted); font-size: .75rem; font-weight: 700; }
.sample-badge { display: inline-flex; align-items: center; border: 1px solid var(--border); border-radius: 99px; padding: 5px 10px; background: var(--surface-raised); color: var(--text); font-size: .76rem; font-weight: 750; }
.sample-actions { display: flex; flex-wrap: wrap; gap: 10px; padding: 15px; margin: 0 0 17px; border: 1px solid var(--border); border-radius: 15px; background: var(--surface-raised); }
.sample-task-topline { display: flex; align-items: center; gap: 8px; margin-bottom: 5px; }
.priority-pill { display: inline-flex; border: 1px solid var(--border); border-radius: 99px; padding: 3px 8px; color: var(--muted); font-size: .7rem; font-weight: 760; }
.priority-pill[data-priority="High"] { color: var(--primary); }
.sample-overview { margin-bottom: 22px; border-left: 4px solid var(--sage); }
.sample-overview h2 { font-size: .95rem; }
.delete-project-action { color: var(--danger); }
.delete-project-action:hover { background: var(--danger-surface); }
.studybuddy-panel { overflow: hidden; padding: clamp(17px,3vw,25px); margin: 18px 0; }
.studybuddy-panel-head { display: flex; align-items: start; justify-content: space-between; gap: 16px; }
.studybuddy-panel-head h2 { margin: 0 0 5px; font-size: clamp(1.1rem,3vw,1.4rem); }
.studybuddy-panel-head p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: .86rem; }
.studybuddy-panel-head .eyebrow { margin-bottom: 5px; }
.studybuddy-panel-head .sample-badge { flex: 0 0 auto; }
.week-strip { display: grid; grid-template-columns: repeat(5,1fr); gap: 8px; margin: 20px 0; }
.week-strip > span { display: grid; gap: 3px; border: 1px solid var(--border); border-radius: 11px; padding: 9px 7px; background: var(--surface); text-align: center; font-size: .77rem; font-weight: 680; }
.week-strip small { color: var(--muted); font-size: .63rem; letter-spacing: .07em; }
.week-strip .today { border-color: var(--sage); background: color-mix(in srgb,var(--sage) 18%,var(--surface)); }
.studybuddy-list-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.studybuddy-list-head h3 { margin: 0; font-size: .96rem; }
.studybuddy-list-head span { color: var(--muted); font-size: .77rem; }
.demo-assignment-list { display: grid; gap: 8px; margin: 11px 0 17px; padding: 0; list-style: none; }
.demo-assignment { display: grid; grid-template-columns: 20px minmax(0,1fr) auto; align-items: center; gap: 10px; border: 1px solid var(--border); border-radius: 12px; padding: 10px 12px; background: var(--surface); }
.demo-assignment input { width: 18px; height: 18px; margin: 0; accent-color: var(--sage); }
.demo-assignment strong, .demo-assignment div span { display: block; }
.demo-assignment strong { font-size: .85rem; }
.demo-assignment div span, .demo-assignment time { color: var(--muted); font-size: .73rem; }
.demo-assignment.is-complete strong { color: var(--muted); text-decoration: line-through; }
.demo-assignment-form { display: grid; grid-template-columns: minmax(150px,1.3fr) minmax(110px,.8fr) minmax(130px,.9fr) auto; align-items: end; gap: 10px; border: 1px solid var(--border); border-radius: 13px; padding: 12px; background: var(--surface-raised); }
.demo-assignment-form .field { min-width: 0; margin: 0; }
.demo-assignment-form label { display: block; margin-bottom: 5px; font-size: .75rem; font-weight: 740; }
.demo-assignment-form input { width: 100%; min-height: 40px; border: 1px solid var(--border); border-radius: 8px; padding: 8px 9px; background: var(--surface); color: var(--text); }
.demo-assignment-form > button { min-height: 40px; padding: 8px 12px; font-size: .8rem; }
.demo-assignment-form .field-error { grid-column: 1 / -1; margin: -3px 0 0; }
.demo-task-action { margin-top: 9px; }
.sketch-card { margin: 17px 0 22px; overflow: hidden; }
.sketch-card > summary { display: flex; align-items: center; justify-content: space-between; gap: 10px; cursor: pointer; padding: 13px 16px; list-style: none; }
.sketch-card > summary::-webkit-details-marker { display: none; }
.sketch-card > summary span:first-child { font-size: .9rem; font-weight: 780; }
.sketch-card > summary span:last-child { color: var(--muted); font-size: .78rem; }
.wireframe { max-width: 530px; margin: 0 auto 17px; border: 1px dashed var(--border); border-radius: 15px; padding: 15px; background: var(--surface-raised); }
.wireframe-top { display: flex; justify-content: space-between; border-bottom: 1px solid var(--border); padding: 0 0 9px; font-size: .78rem; font-weight: 800; }
.wireframe-greeting { margin: 13px 0; font-size: 1.04rem; font-weight: 780; }
.wireframe-greeting small { display: block; color: var(--muted); font-size: .75rem; font-weight: 450; }
.wireframe-heading { margin: 11px 0 6px; color: var(--muted); font-size: .73rem; font-weight: 800; text-transform: uppercase; }
.wireframe-row { display: grid; grid-template-columns: 16px 1fr 68px; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 8px; padding: 9px; margin: 6px 0; background: var(--surface); font-size: .76rem; }
.wireframe-check { width: 15px; height: 15px; border: 1.5px solid var(--border); border-radius: 4px; }
.wireframe-row i { height: 5px; border-radius: 99px; background: var(--surface-raised); }
.wireframe-form { margin-top: 9px; border: 1px dashed var(--sage); border-radius: 8px; padding: 9px; color: var(--sage); font-size: .78rem; font-weight: 730; text-align: center; }
.sample-goal { margin-top: 11px !important; }
.note-panel { padding: 18px 20px; background: var(--surface-raised); box-shadow: none; }
.note-panel h3 { margin-bottom: 6px; font-size: .98rem; }
.note-panel p { margin: 0; color: var(--muted); font-size: .87rem; line-height: 1.55; }
.plan-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 25px; }
.text-button { border: 0; border-radius: 8px; padding: 7px 9px; background: transparent; color: var(--primary); font-weight: 730; }
.text-button:hover { background: var(--surface-raised); }
.plan-summary { display: grid; grid-template-columns: 1fr minmax(190px, .55fr); gap: 22px; padding: 21px; margin-bottom: 25px; }
.plan-summary h2 { margin: 0 0 7px; font-size: 1rem; }
.plan-summary p { margin-bottom: 0; color: var(--muted); line-height: 1.55; }
.plan-progress { align-self: center; }
.plan-progress .progress-track { height: 11px; margin-bottom: 7px; }
.plan-progress-note { color: var(--muted); font-size: .82rem; }
.scope-panel { padding: 22px; margin-bottom: 25px; border-color: color-mix(in srgb, var(--sage) 45%, var(--border)); }
.scope-panel h2 { margin-bottom: 6px; font-size: 1.18rem; }
.scope-intro { color: var(--muted); font-size: .92rem; }
.scope-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.scope-card { border: 1px solid var(--border); border-radius: 13px; padding: 14px; background: var(--surface); }
.scope-card h3 { margin-bottom: 8px; font-size: .87rem; }
.scope-card p, .scope-card li { color: var(--muted); font-size: .82rem; line-height: 1.5; overflow-wrap: anywhere; }
.scope-card ul { margin: 0; padding-left: 17px; }
.plan-note { margin: 0 0 20px; color: var(--muted); font-size: .85rem; }
.stage { margin: 16px 0; overflow: hidden; }
.stage summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; list-style: none; padding: 18px 20px; }
.stage summary::-webkit-details-marker { display: none; }
.stage summary:after { content: "+"; color: var(--primary); font-size: 1.25rem; font-weight: 700; }
.stage[open] summary:after { content: "−"; }
.stage-title { font-weight: 780; }
.stage-count { margin-left: 8px; color: var(--muted); font-size: .82rem; font-weight: 550; }
.stage-tasks { padding: 0 13px 12px; }
.task-card { display: grid; grid-template-columns: 23px minmax(0,1fr) auto; align-items: start; gap: 10px; border-top: 1px solid var(--border); padding: 15px 7px; }
.task-check { width: 19px; height: 19px; margin: 2px 0 0; accent-color: var(--sage); cursor: pointer; }
.task-check:focus-visible, .demo-assignment input:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.task-title { margin: 0; font-size: .94rem; font-weight: 720; }
.task-card.is-complete .task-title { color: var(--muted); text-decoration: line-through; text-decoration-thickness: 1px; }
.task-description { margin: 5px 0 0; color: var(--muted); font-size: .86rem; line-height: 1.5; }
.task-time { color: var(--muted); font-size: .78rem; white-space: nowrap; }
.task-details { margin-top: 8px; }
.task-details summary { display: inline; padding: 0; color: var(--primary); font-size: .81rem; font-weight: 700; }
.task-details summary:after { content: ""; }
.task-criteria { margin: 7px 0 0; color: var(--muted); font-size: .82rem; }
.empty-note { padding: 14px; color: var(--muted); }
.site-footer { padding: 15px 0 26px; border-top: 1px solid var(--border); text-align: center; }
.storage-notice, .scope-warning { border: 1px solid var(--danger); border-radius: 12px; padding: 12px 15px; background: var(--danger-surface); color: var(--text); line-height: 1.5; }
.continue-panel { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 20px 22px; margin-bottom: 28px; }
.continue-panel h2 { margin: 0 0 5px; font-size: 1.3rem; }
.continue-panel p:not(.eyebrow) { margin: 0; color: var(--muted); font-size: .88rem; }
.continue-panel .progress-track { width: min(440px, 100%); margin: 12px 0 0; }
.projects-section { margin-top: 40px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; margin-bottom: 15px; }
.section-heading .eyebrow { margin-bottom: 4px; }
.section-heading h2 { margin: 0; font-size: 1.45rem; }
.section-heading > span { color: var(--muted); font-size: .85rem; }
.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 15px; }
.project-card { padding: 18px; box-shadow: none; }
.project-card-heading { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.project-card h3 { margin: 0 0 5px; font-size: 1rem; }
.project-card-heading p { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; margin: 0; color: var(--muted); font-size: .83rem; line-height: 1.45; overflow-wrap: anywhere; }
.project-percent { border-radius: 99px; padding: 5px 9px; background: var(--surface-raised); font-size: .78rem; font-weight: 750; }
.project-card .progress-track { margin: 14px 0 8px; }
.project-card-footer { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .78rem; }
.project-open { width: 100%; margin-top: 15px; }
.project-name-edit, .task-heading { display: flex; align-items: center; gap: 10px; }
.project-name-edit h2 { margin: 0 0 7px; }
.task-heading { justify-content: space-between; }
.task-action { border: 0; border-radius: 7px; padding: 4px 7px; background: transparent; color: var(--primary); font-size: .76rem; font-weight: 700; }
.task-action:hover, .text-button:hover { background: var(--surface-raised); }
.task-edit-form, .inline-name-form { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.task-edit-form input, .inline-name-form input, .add-task-panel input, .add-task-panel textarea, .add-task-panel select { min-width: 0; border: 1px solid var(--border); border-radius: 9px; padding: 10px 11px; background: var(--surface); color: var(--text); }
.task-edit-form input { flex: 1; }
.inline-name-form { margin-top: 10px; }
.inline-name-form label { flex-basis: 100%; font-size: .85rem; font-weight: 700; }
.inline-name-form input { flex: 1; }
.small-button { min-height: 37px; border: 1px solid transparent; border-radius: 9px; padding: 7px 12px; background: var(--primary); color: var(--primary-contrast); font: inherit; font-size: .82rem; font-weight: 740; cursor: pointer; }
.small-button:hover { background: var(--primary-hover); }
.small-text-button { font-size: .82rem; }
.task-main { min-width: 0; }
.task-main .task-title { overflow-wrap: anywhere; }
.task-edit-form .field-error { flex-basis: 100%; }
.add-task-panel { padding: clamp(19px, 3vw, 26px); margin-top: 24px; }
.add-task-panel h2 { margin: 0 0 5px; font-size: 1.2rem; }
.add-task-panel .panel-intro { margin-bottom: 18px; }
.add-task-panel form { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 0 16px; }
.add-task-panel .field { margin-bottom: 13px; }
.add-task-panel .field input, .add-task-panel .field textarea, .add-task-panel .field select { width: 100%; }
.add-task-panel .input-unit input { flex: 1; }
.add-task-panel .input-unit select { width: auto; }
.add-task-panel form > button { align-self: end; margin-bottom: 13px; }
.optional-label, .empty-stage { color: var(--muted); font-size: .82rem; font-weight: 450; }
.empty-stage { margin: 0; padding: 15px 7px 5px; }
.plan-footer-action { margin-top: 17px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.task-edit-form [aria-invalid="true"], .add-task-panel [aria-invalid="true"], .inline-name-form [aria-invalid="true"] { border-color: var(--danger); }
[hidden] { display: none !important; }

@media (max-width: 820px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  .side-column { grid-template-columns: 1fr 1fr; align-items: stretch; }
  .continue-panel { align-items: start; flex-direction: column; }
}
@media (max-width: 640px) {
  .app-shell { width: min(100% - 26px, 1160px); }
  .site-header { min-height: 68px; }
  .header-note { font-size: .75rem; }
  .site-header { flex-wrap: wrap; padding: 9px 0; }
  .theme-toggle { min-height: 37px; padding: 6px 9px; font-size: .76rem; }
  .main-content { min-height: calc(100vh - 130px); padding: 36px 0 44px; }
  .side-column { grid-template-columns: 1fr; }
  .plan-header { display: block; }
  .plan-header .text-button { margin-bottom: 12px; }
  .plan-summary { grid-template-columns: 1fr; }
  .scope-columns { grid-template-columns: 1fr; }
  .project-grid, .add-task-panel form { grid-template-columns: 1fr; }
  .project-card-footer { flex-direction: column; gap: 3px; }
  .continue-panel .button { width: 100%; }
  .studybuddy-panel-head { flex-direction: column; }
  .demo-assignment-form { grid-template-columns: 1fr 1fr; }
  .demo-assignment-form > button { grid-column: 1 / -1; }
  .task-card { grid-template-columns: 23px minmax(0,1fr); }
  .task-time { grid-column: 2; grid-row: 2; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}