:root{--sidebar: #2f6ea6;--header: #28639a;--active: #e36b4f;--bg: #f4f7f9;--card: #ffffff;--ink: #2c3e50;--muted: #7b8794;--line: #e6ebf0;--blue: #3aa0e8;--teal: #2bbbad;--red: #e85d6c;--gold: #e0a84a;--purple: #8e5ad8;--green: #3cb878;--shadow: 0 1px 3px rgba(32, 54, 86, .08);--sans: "Segoe UI", sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font-family:var(--sans);font-size:15px;line-height:1.45}button,input,select,textarea{font:inherit;color:inherit}button,a{cursor:pointer}a{color:var(--header)}h1,h2{font-weight:600;letter-spacing:0}.app{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--sidebar);color:#fff;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;padding:1.1rem 0 1rem}.brand{margin:0 1rem 1.1rem;font-size:1rem;font-weight:700}.nav{display:flex;flex-direction:column;gap:.15rem}.nav a{color:#fff;text-decoration:none;padding:.65rem 1rem;border-left:3px solid transparent}.nav a:hover{background:#ffffff14}.nav a.active{background:var(--active);border-left-color:#ffd0c4}.session{margin-top:auto;padding:1rem;display:flex;flex-direction:column;gap:.55rem;color:#ffffffd9;font-size:.9rem}.workspace{flex:1;min-width:0;background:var(--bg)}.topbar{height:52px;background:var(--header);color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 1.25rem}.topbar p{margin:0;font-weight:600}.year-badge{background:#ffffff29;border-radius:4px;padding:.2rem .55rem;font-size:.85rem}main{padding:1rem 1.15rem 2rem}.row-actions,.week-nav,.modal-actions{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}button.primary,button.quiet,button.danger{border-radius:4px;padding:.45rem .8rem}button.primary{background:var(--header);color:#fff;border:1px solid var(--header)}button.quiet,button.danger{background:#fff;border:1px solid #cfd8e3;color:var(--ink)}button.danger{color:var(--red);border-color:#f0c4c8}.sidebar button.quiet{background:transparent;color:#fff;border-color:#ffffff73}button:disabled{opacity:.45;cursor:default}label{display:flex;flex-direction:column;gap:.25rem;color:var(--muted);font-size:.82rem}input,select,textarea{background:#fff;border:1px solid #d5dee8;border-radius:4px;padding:.45rem .55rem}input:focus,select:focus,textarea:focus{outline:2px solid rgba(58,160,232,.35);border-color:var(--blue)}textarea{resize:vertical}.error{color:var(--red);margin:.5rem 0}.success{color:#1f7a4d;margin:.5rem 0}.login-links{margin:0;text-align:center}.login-links a{color:var(--sidebar);font-weight:600}.role.pending{color:var(--red)}.status,.muted,.note-hint,.empty-day{color:var(--muted)}.login-page{min-height:100vh;display:grid;place-items:center;padding:1.5rem;background:linear-gradient(160deg,var(--header),var(--sidebar))}.login-card,.panel,.sheet{background:var(--card);border:1px solid var(--line);border-radius:6px;box-shadow:var(--shadow)}.login-card{width:min(26rem,100%);padding:2rem 1.75rem;display:flex;flex-direction:column;gap:.85rem}.login-card h1,.panel h1,.sheet h1{margin:0}.eyebrow,.lead,.owner-line,.panel-head p{margin:.25rem 0 0;color:var(--muted)}.week-nav{margin-bottom:.85rem}.week-nav>button{position:relative;z-index:21}.jump-date{display:flex;flex-direction:row;align-items:center;gap:.45rem;margin-left:auto;color:var(--ink);font-size:.82rem}.date-field{position:relative}.date-field-value{background:#fff;border:1px solid #d5dee8;border-radius:4px;padding:.45rem .55rem;min-width:9.5rem;text-align:left}.date-pop{position:absolute;top:calc(100% + .35rem);right:0;z-index:20;width:17.5rem;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 8px 24px #1c304a29;padding:.65rem}.date-pop-head{display:flex;align-items:center;justify-content:space-between;gap:.35rem;margin-bottom:.45rem}.date-pop-head strong{font-weight:600}.date-pop-head button{padding:.2rem .55rem}.date-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:.15rem}.date-weekday{text-align:center;font-size:.75rem;color:var(--muted);padding:.2rem 0}.date-day{border:0;background:transparent;border-radius:4px;padding:.35rem 0;text-align:center}.date-day:hover:not(:disabled){background:#e8f3fb}.date-day.outside{color:#b0bac4}.date-day.in-week{background:#e8f3fb}.date-day.selected,.date-day.selected:hover{background:var(--header);color:#fff}.date-day:disabled{opacity:.35;cursor:default}.sheet{padding:0 0 .9rem;overflow-x:auto}.sheet-head{display:flex;justify-content:space-between;gap:1rem;align-items:flex-end;padding:1rem 1.1rem;border-bottom:3px solid var(--header)}.sheet h1{font-size:1.25rem}.week-meta{text-align:right}.week-meta p{margin:0}.week-no{font-size:1.05rem;color:var(--header)}.days{display:grid;grid-template-columns:repeat(var(--day-count),minmax(0,1fr));gap:.75rem;min-width:760px;margin:.9rem .9rem 0}.day{min-height:16rem;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:6px;overflow:hidden}.day-head,.lesson{width:100%;text-align:left;border:0}.day-head{padding:.75rem .75rem .65rem;color:#fff;display:flex;flex-direction:column;gap:.15rem}.day-1 .day-head{background:var(--blue)}.day-2 .day-head{background:var(--teal)}.day-3 .day-head{background:var(--red)}.day-4 .day-head{background:var(--gold)}.day-5 .day-head{background:var(--purple)}.dow{font-size:.92rem;font-weight:700}.date,.day-head .note-hint{color:#ffffffe0;font-size:.8rem}.lessons{display:flex;flex-direction:column}.lesson{display:grid;grid-template-columns:auto 1fr;gap:.15rem .65rem;padding:.6rem .75rem;background:#fff;border-bottom:1px solid var(--line)}.lesson:hover{background:#f7fbfe}.lesson.has-note{box-shadow:inset 3px 0 0 var(--green)}.period{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:.82rem}.subject{font-weight:600}.note-preview{grid-column:1/-1;color:#1f7a4d;font-size:.8rem;white-space:pre-wrap}.day-head .note-preview{color:inherit}.day-note{width:100%;border:0;border-bottom:1px solid var(--line);background:#fff;text-align:left;padding:.45rem .7rem;color:var(--ink)}.day-note:hover{background:#f7fbfe}.editor{display:flex;flex-direction:column;gap:.4rem}.editor-toolbar{display:flex;flex-wrap:wrap;gap:.35rem;align-items:center}.editor-toolbar .quiet{font-size:.85rem}.color-swatch{width:1.4rem;height:1.4rem;border-radius:4px;border:2px solid #fff;box-shadow:0 0 0 1px #cfd8e3;padding:0}.editor-surface{min-height:8rem;border:1px solid #d5dee8;border-radius:4px;padding:.55rem;background:#fff;line-height:1.45}.editor-surface:focus{outline:2px solid rgba(58,160,232,.35);border-color:var(--blue)}.note-preview b,.note-preview strong,.day-note b,.day-note strong,.month-day-note b,.month-day-note strong,.month-lesson-note b,.month-lesson-note strong{font-weight:700}.closure{margin:.75rem;padding:.9rem .75rem;border-radius:4px;text-align:center;background:#eef8f4;color:#1d6b58}.closure-holiday{background:#fdecee;color:#a33b48}.closure-event{background:#eef6fd;color:#1d5f8a}.closure h2{margin:.35rem 0;font-size:1rem}.closure p{margin:.25rem 0}.closure-kind{font-size:.72rem;letter-spacing:.05em;text-transform:uppercase;font-weight:700}.empty-day{margin:.85rem .75rem}.sheet-foot{margin:.85rem 1.1rem 0;color:var(--muted);font-size:.85rem}.month-board{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:.45rem;margin:.9rem;min-width:760px}.month-weekday{text-align:center;font-size:.75rem;font-weight:700;color:var(--muted);letter-spacing:.04em}.month-pad{min-height:1px}.month-cell{min-height:7.2rem;background:#fff;border:1px solid var(--line);border-radius:6px;padding:.35rem;display:flex;flex-direction:column;gap:.25rem}.month-cell.out{background:#f7f9fb}.month-cell.weekend{background:#f8fafc}.month-date{align-self:flex-start;border:0;border-radius:4px;color:#fff;font-weight:700;font-size:.8rem;padding:.15rem .4rem;display:inline-flex;align-items:center;gap:.3rem}.month-date.day-1{background:var(--blue)}.month-date.day-2{background:var(--teal)}.month-date.day-3{background:var(--red)}.month-date.day-4{background:var(--gold)}.month-date.day-5{background:var(--purple)}.month-date.day-6,.month-date.day-7{background:#8ea0b3}.month-day-note{border:0;background:#eef8f2;color:#1f7a4d;border-radius:3px;text-align:left;font-size:.75rem;line-height:1.35;padding:.25rem .35rem;white-space:pre-wrap}.month-day-note:hover{background:#e2f3ea}.month-lesson-note{display:block;color:#1f7a4d;font-weight:400;white-space:pre-wrap}.month-name{display:none}.month-lessons{display:flex;flex-direction:column;gap:.15rem}.month-lesson{border:0;background:#f4f8fb;border-radius:3px;text-align:left;font-size:.72rem;padding:.15rem .3rem;line-height:1.3}.month-lesson.has-note{box-shadow:inset 2px 0 0 var(--green)}.month-lesson:hover{background:#e7f3fb}.month-closure{margin:0;display:flex;flex-direction:column;gap:.1rem;font-size:.72rem;line-height:1.3}.month-closure span{font-weight:600;letter-spacing:.03em;text-transform:uppercase;font-size:.65rem}.panel{padding:1.15rem}.panel-head{margin:-1.15rem -1.15rem 1rem;padding:.85rem 1.15rem;border-bottom:3px solid var(--header)}.schedule-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.75rem}.schedule-day{border:1px solid var(--line);border-radius:6px;background:#fff;padding:.75rem;border-top:4px solid var(--blue)}.schedule-day:nth-child(2){border-top-color:var(--teal)}.schedule-day:nth-child(3){border-top-color:var(--red)}.schedule-day:nth-child(4){border-top-color:var(--gold)}.schedule-day:nth-child(5){border-top-color:var(--purple)}.schedule-day h2{margin:0 0 .5rem;font-size:1rem}.schedule-day ul,.people{list-style:none;margin:0 0 .75rem;padding:0}.schedule-day li,.people li{display:flex;flex-direction:column;gap:.35rem;padding:.5rem 0;border-bottom:1px solid var(--line)}.lesson-form,.stack-form{display:flex;flex-direction:column;gap:.55rem}.stack-form{max-width:28rem;margin-top:1.25rem}.people li{flex-direction:row;justify-content:space-between;align-items:center;gap:1rem}.people li div,.people li span.role{display:flex;flex-direction:column}.role{color:var(--muted);font-size:.85rem}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#1c304a73;display:grid;place-items:center;padding:1rem}.modal{width:min(32rem,100%);background:#fff;border-radius:6px;box-shadow:0 12px 40px #1c304a33;padding:1.25rem;display:flex;flex-direction:column;gap:.75rem}.modal h2{margin:0}@media(max-width:800px){.app{flex-direction:column}.sidebar{width:auto;height:auto;position:static;padding-bottom:.6rem}.nav{flex-direction:row;flex-wrap:wrap}.nav a{border-left:0;border-radius:4px}.session{margin-top:.5rem;flex-direction:row;align-items:center}.sheet-head,.people li{flex-direction:column;align-items:flex-start}.week-meta{text-align:left}.date-pop{left:0;right:auto}.month-weekday,.month-pad{display:none}.month-name{display:inline;font-weight:600}.days,.schedule-grid,.month-board{grid-template-columns:1fr;min-width:0}.day{min-height:0}}