/* ============================================================
   Planner Pro — shared stylesheet
   Used by: login.html, index.html, grades.html, calendar_builder.html
   ============================================================ */

:root {
    --bg: #FFFFF5;
    --panel: #F5F5F0;
    --border: #CBCBCB;
    --text: #4A4A4A;
    --text-light: #8A8A8A;
    --primary: #7E93A8;
    --primary-ink: #5A6E80;
    --well: #565656;
    --well-subtle: #707070;
    --on-well: #FFFFE3;
    --on-well-muted: #C9C9C9;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    --sidebar-w: 320px;

    --ok: #5FA37D;
    --ok-ink: #3A6E52;
    --warn: #CC9A63;
    --danger: #C16257;
    --danger-ink: #8A453C;
    --error: #C16257;
    --save-ok: #5FA37D;
    --save-pending: #CC9A63;

    --s0-dark: #7A2E26;
    --s0-light: #D6564B;
    --s1-dark: #8A6018;
    --s1-light: #D9A23B;
    --s2-dark: #2E6259;
    --s2-light: #4FAE9C;
}

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

/* ── Page shells ──────────────────────────────────────────────
   Each page sets a body class since the base layout genuinely
   differs (centered login card / app sidebar shell / padded
   tool page). Everything else below is shared. ── */

body.page-login {
    font-family: var(--font-mono);
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.page-app {
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    height: 100vh;
    overflow: hidden;
}

body.page-grades {
    --page-max: 860px;
    font-family: var(--font-mono);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 40px 20px;
}

body.page-calendar {
    --page-max: 780px;
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    padding: 40px 20px;
}

/* ── Shared "tool page" header/section chrome (grades + calendar_builder) ── */

.page-header { max-width: var(--page-max, 820px); margin: 0 auto 40px; display: flex; justify-content: space-between; align-items: center; }
.page-title { font-family: var(--font-mono); font-size: 20px; font-weight: 900; color: var(--primary-ink); text-transform: uppercase; letter-spacing: 3px; }
.back-link { font-family: var(--font-mono); font-size: 11px; color: var(--text-light); text-decoration: none; text-transform: uppercase; border: 1px solid var(--border); padding: 6px 12px; }
.back-link:hover { color: var(--primary-ink); border-color: var(--primary); }

.section { background: var(--panel); border: 2px solid var(--border); box-shadow: 6px 6px 0 rgba(0,0,0,0.10); }
.section-head { padding: 14px 22px; border-bottom: 2px solid var(--border); font-family: var(--font-mono); font-size: 11px; font-weight: 900; color: var(--primary-ink); text-transform: uppercase; letter-spacing: 0.2em; }
.section-body { padding: 22px; }

/* ============================================================
   login.html
   ============================================================ */

.login-box {
    background: var(--panel);
    border: 2px solid var(--border);
    padding: 50px 45px;
    width: 380px;
    box-shadow: 8px 8px 0 rgba(0,0,0,0.12);
}
.login-title {
    font-size: 22px;
    font-weight: 900;
    color: var(--primary-ink);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 8px;
}
.login-sub {
    font-size: 11px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 36px;
    border-left: 3px solid var(--border);
    padding-left: 10px;
}
.login-box label {
    display: block;
    font-size: 10px;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 8px;
}
.login-box input[type="password"] {
    width: 100%;
    background: var(--well);
    border: 2px solid var(--border);
    color: var(--on-well);
    padding: 12px 14px;
    font-family: var(--font-mono);
    font-size: 14px;
    outline: none;
    margin-bottom: 24px;
    transition: border-color 0.2s;
}
.login-box input[type="password"]:focus { border-color: var(--primary); }
.login-box button {
    width: 100%;
    background: var(--primary);
    color: var(--well);
    border: none;
    font-family: var(--font-mono);
    font-weight: 900;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 14px;
    cursor: pointer;
}
.login-box button:hover { background: #f5a623; }
.login-box .error {
    background: rgba(214,71,63,0.15);
    border: 1px solid var(--danger);
    color: var(--danger-ink);
    padding: 10px 14px;
    font-size: 11px;
    margin-bottom: 20px;
}

/* ============================================================
   index.html — app shell (sidebar + calendar canvas)
   ============================================================ */

#sidebar { width: var(--sidebar-w); background: var(--well); color: var(--on-well); border-right: 3px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; }
.sidebar-header { padding: 30px 24px; border-bottom: 2px solid var(--border); font-family: var(--font-mono); font-weight: 900; color: var(--primary); text-transform: uppercase; letter-spacing: 2px; display: flex; justify-content: space-between; align-items: center; }
.sidebar-links { padding: 10px 24px; border-bottom: 2px solid var(--border); display: flex; gap: 14px; }
.sidebar-links a { color: var(--on-well-muted); font-family: var(--font-mono); font-size: 11px; text-decoration: none; text-transform: uppercase; letter-spacing: 0.05em; }
.sidebar-links a:hover { color: var(--primary); }
.sidebar-scroll { flex: 1; overflow-y: auto; padding: 30px 24px; }
.section-label { display: block; margin-bottom: 15px; font-size: 11px; font-weight: 900; color: var(--primary); text-transform: uppercase; letter-spacing: 0.2em; border-left: 4px solid var(--primary); padding-left: 10px; }
.nav-section { margin-bottom: 28px; }

#todo-container { min-height: 60px; margin-bottom: 20px; }
.todo-item { display: flex; align-items: flex-start; gap: 8px; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,0.06); font-size: 13px; }
.todo-item.dragging { opacity: 0.35; }
.todo-item.drag-over-todo { outline: 1px dashed var(--primary); background: rgba(232,137,11,0.08); }
.todo-handle { cursor: grab; color: var(--on-well-muted); font-size: 12px; user-select: none; flex-shrink: 0; letter-spacing: -1px; padding-top: 2px; }
.todo-handle:active { cursor: grabbing; }
.todo-check { cursor: pointer; flex-shrink: 0; width: 14px; text-align: center; padding-top: 2px; }
.todo-text { flex: 1; cursor: text; overflow-wrap: break-word; word-break: break-word; white-space: normal; min-width: 0; line-height: 1.4; }
.todo-text.done { text-decoration: line-through; opacity: 0.4; }
.todo-del { cursor: pointer; opacity: 0.4; flex-shrink: 0; padding-top: 2px; }
.todo-del:hover { opacity: 1; color: var(--danger); }
.todo-edit-input { flex: 1; min-width: 0; background: var(--well); border: 1px solid var(--primary); color: var(--on-well); font-family: var(--font-mono); font-size: 12px; padding: 3px 6px; outline: none; }
.done { text-decoration: line-through; opacity: 0.4; }

.todo-toast {
    position: fixed; bottom: 20px; left: 20px; z-index: 1000;
    background: var(--well); border: 2px solid var(--primary); color: var(--on-well);
    font-family: var(--font-mono); font-size: 12px; padding: 12px 16px;
    display: flex; align-items: center; gap: 14px; max-width: 320px;
    opacity: 0; pointer-events: none; transform: translateY(10px);
    transition: opacity 0.2s, transform 0.2s;
}
.todo-toast.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.todo-toast span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.todo-toast button {
    background: var(--primary); color: var(--well); border: none; font-family: var(--font-mono);
    font-weight: 900; font-size: 11px; text-transform: uppercase; padding: 6px 10px;
    cursor: pointer; flex-shrink: 0;
}
.todo-toast button:hover { background: #F5A623; }

.lesson-toast {
    position: fixed; top: 20px; left: 50%; z-index: 1000;
    background: var(--well); border: 2px solid var(--danger); color: var(--on-well);
    font-family: var(--font-mono); font-size: 12px; padding: 12px 18px;
    max-width: 360px; text-align: center; pointer-events: none;
    opacity: 0; transform: translate(-50%, -10px);
    transition: opacity 0.2s, transform 0.2s;
}
.lesson-toast.show { opacity: 1; transform: translate(-50%, 0); }

.year-tab { padding: 12px; margin-bottom: 5px; background: rgba(255,255,255,0.04); border: 1px solid var(--border); cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-size: 13px; font-family: var(--font-mono); }
.year-tab.active { border-left: 4px solid var(--primary); background: rgba(232,137,11,0.1); color: var(--primary); }
.year-tab:hover:not(.active) { background: rgba(255,255,255,0.07); }
.action-icon { background: none; border: none; cursor: pointer; font-size: 14px; filter: grayscale(1); opacity: 0.6; padding: 2px 4px; }
.action-icon:hover { filter: grayscale(0); opacity: 1; }

.btn-primary { background: var(--well); color: var(--primary); border: 2px solid var(--primary); font-family: var(--font-mono); text-transform: uppercase; font-weight: 900; padding: 8px 16px; cursor: pointer; font-size: 11px; }
.btn-primary:hover { background: var(--primary); color: var(--well); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--on-well-muted); font-size: 10px; padding: 4px 8px; cursor: pointer; margin-right: 5px; margin-bottom: 6px; text-transform: uppercase; font-family: var(--font-mono); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.logout-btn { font-size: 10px; color: var(--on-well-muted); background: none; border: 1px solid var(--border); padding: 3px 8px; cursor: pointer; font-family: var(--font-mono); text-transform: uppercase; }
.logout-btn:hover { color: var(--danger); border-color: var(--danger); }

#main { flex: 1; overflow-y: auto; background: var(--bg); scroll-behavior: smooth; min-width: 0; }
#toolbar { background: var(--well); color: var(--on-well); padding: 10px 40px; border-bottom: 2px solid var(--border); display: flex; align-items: center; gap: 15px; position: sticky; top: 0; z-index: 100; flex-wrap: wrap; }
select { background: var(--well); border: 1px solid var(--border); color: var(--primary); font-family: var(--font-mono); padding: 6px 10px; outline: none; cursor: pointer; }
.save-block { margin-left: auto; display: flex; align-items: center; gap: 12px; background: var(--well); padding: 5px 15px; border: 1px solid var(--border); border-radius: 4px; }
#save-indicator { font-family: var(--font-mono); font-size: 10px; color: var(--on-well-muted); text-transform: uppercase; }
.save-led { width: 8px; height: 8px; border-radius: 50%; background: var(--save-ok); }
.save-led.pending { background: var(--save-pending); animation: blink 0.8s infinite; }
.save-led.error { background: var(--danger); }
@keyframes blink { 50% { opacity: 0.3; } }
#view-title { padding: 20px 40px; font-family: var(--font-mono); letter-spacing: 2px; text-transform: uppercase; color: var(--primary-ink); }

.toolbar-stat { display: flex; flex-direction: column; align-items: center; padding: 4px 14px; border-left: 1px solid var(--border); gap: 2px; }
.toolbar-stat-val { font-family: var(--font-mono); font-size: 15px; font-weight: 900; color: var(--primary); line-height: 1; }
.toolbar-stat-label { font-family: var(--font-mono); font-size: 9px; color: var(--on-well-muted); text-transform: uppercase; letter-spacing: 0.1em; white-space: nowrap; }

.week-row { display: grid; background: var(--panel); border: 2px solid var(--border); margin: 25px 40px; box-shadow: 8px 8px 0px rgba(0,0,0,0.10); position: relative; }
.week-label { background: var(--well); border-right: 2px solid var(--border); display: flex; align-items: center; justify-content: center; font-family: var(--font-mono); font-size: 12px; color: var(--on-well); writing-mode: vertical-rl; text-transform: uppercase; }
.day-col-bg { border-right: 1px solid var(--border); min-width: 0; pointer-events: none; }
.day-col-bg.no-border { border-right: none; }
.day-col-bg.drag-over { background: rgba(232,137,11,0.10); outline: 2px dashed var(--primary); outline-offset: -2px; }
.slot-drag-over { outline: 2px dashed var(--primary); background: rgba(232,137,11,0.22) !important; }
.day-header { padding: 8px 12px; font-family: var(--font-mono); font-size: 11px; color: var(--text-light); display: flex; justify-content: space-between; background: rgba(0,0,0,0.04); border-bottom: 1px solid var(--border); min-width: 0; }

.event-strip { font-family: var(--font-mono); font-size: 11px; font-weight: 900; letter-spacing: 0.04em; color: rgba(0,0,0,0.15); display: flex; align-items: center; padding: 0 10px; text-transform: uppercase; cursor: pointer; border-bottom: 1px solid rgba(0,0,0,0.15); overflow: hidden; white-space: nowrap; user-select: none; transition: color 0.15s; background: rgba(0,0,0,0.03); min-width: 0; }
.event-strip:hover { color: rgba(0,0,0,0.55); }
.event-strip-text { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.event-strip-del { flex-shrink: 0; margin-left: 8px; opacity: 0.55; cursor: pointer; font-size: 14px; line-height: 1; }
.event-strip-del:hover { opacity: 1; color: #fff; }
.event-strip.editing { background: var(--well); color: var(--on-well); cursor: default; padding: 0; }
.event-strip-input { width: 100%; height: 100%; padding: 0 10px; background: transparent; border: none; outline: none; color: var(--on-well); font-family: var(--font-mono); font-size: 11px; font-weight: 900; letter-spacing: 0.04em; text-transform: uppercase; }
.event-strip-input::placeholder { color: var(--on-well-muted); text-transform: none; font-weight: 500; }
.event-strip.s0.has-event { background: repeating-linear-gradient(-45deg, var(--s0-dark), var(--s0-dark) 10px, var(--s0-light) 10px, var(--s0-light) 20px); color: #fff; font-size: 12px; text-shadow: 1px 1px 0 rgba(0,0,0,0.95), -1px -1px 0 rgba(0,0,0,0.95), 1px -1px 0 rgba(0,0,0,0.95), -1px 1px 0 rgba(0,0,0,0.95), 0 2px 5px rgba(0,0,0,0.9); border-bottom: 1px solid var(--s0-dark); }
.event-strip.s1.has-event { background: repeating-linear-gradient(-45deg, var(--s1-dark), var(--s1-dark) 10px, var(--s1-light) 10px, var(--s1-light) 20px); color: #fff; font-size: 12px; text-shadow: 1px 1px 0 rgba(0,0,0,0.95), -1px -1px 0 rgba(0,0,0,0.95), 1px -1px 0 rgba(0,0,0,0.95), -1px 1px 0 rgba(0,0,0,0.95), 0 2px 5px rgba(0,0,0,0.9); border-bottom: 1px solid var(--s1-dark); }
.event-strip.s2.has-event { background: repeating-linear-gradient(-45deg, var(--s2-dark), var(--s2-dark) 10px, var(--s2-light) 10px, var(--s2-light) 20px); color: #fff; font-size: 12px; text-shadow: 1px 1px 0 rgba(0,0,0,0.95), -1px -1px 0 rgba(0,0,0,0.95), 1px -1px 0 rgba(0,0,0,0.95), -1px 1px 0 rgba(0,0,0,0.95), 0 2px 5px rgba(0,0,0,0.9); border-bottom: 1px solid var(--s2-dark); }

.lesson-pill { background: var(--panel); font-size: 11px; font-weight: 600; color: var(--text); border: 1px solid var(--border); box-shadow: 2px 2px 0 rgba(0,0,0,0.08); display: flex; min-height: 60px; cursor: grab; position: relative; min-width: 0; }
.lesson-pill:active { cursor: grabbing; }
.pill-actions { width: 85px; background: var(--well); color: var(--primary); display: flex; flex-direction: column; font-family: var(--font-mono); font-size: 9px; border-right: 2px solid var(--border); flex-shrink: 0; }
.action-row { height: 33.3%; display: flex; align-items: center; justify-content: center; cursor: pointer; border-bottom: 1px solid var(--border); }
.action-row:last-child { border-bottom: none; }
.action-row:hover { background: var(--primary); color: var(--well); }
.span-row { height: 33.3%; display: flex; background: var(--well); border-bottom: 1px solid var(--border); }
.span-btn { flex: 1; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--primary); font-size: 14px; }
.span-btn:hover { background: var(--primary); color: var(--well); }
.span-display { flex: 1.5; display: flex; align-items: center; justify-content: center; font-size: 10px; border-left: 1px solid var(--border); border-right: 1px solid var(--border); color: var(--on-well); font-family: var(--font-mono); }
.pill-content { flex: 1; min-width: 0; position: relative; }
.lsn-edit-input {
    display: block; width: 100%; min-height: 60px; box-sizing: border-box;
    padding: 22px 12px 12px; line-height: 1.4; font-size: 11px; font-family: inherit; color: var(--text);
    background: transparent; border: 1px solid transparent; outline: none; resize: none; overflow: hidden;
    transition: background 0.15s, border-color 0.15s;
}
.lsn-edit-input:focus { background: rgba(0,0,0,0.03); border-color: var(--border); }
.lsn-edit-input::placeholder { color: var(--text-light); opacity: 0.6; }
.lsn-title-text { display: block; padding: 12px; line-height: 1.4; word-break: break-word; }
.lsn-handle, .lsn-delete { position: absolute; top: 5px; font-size: 12px; opacity: 0.35; cursor: pointer; z-index: 2; transition: opacity 0.15s, color 0.15s; color: var(--text-light); }
.lsn-handle { left: 8px; cursor: grab; }
.lsn-handle:active { cursor: grabbing; }
.lsn-delete { right: 8px; }
.lesson-pill:hover .lsn-handle, .lesson-pill:hover .lsn-delete { opacity: 0.6; }
.lsn-handle:hover { opacity: 1 !important; color: var(--primary-ink); }
.lsn-delete:hover { opacity: 1 !important; color: var(--danger); }
.lesson-slot-empty { display: flex; align-items: center; justify-content: center; min-height: 60px; color: var(--text-light); opacity: 0.7; border: 1px dashed var(--border); cursor: pointer; font-size: 18px; font-family: var(--font-mono); transition: opacity 0.15s, color 0.15s, background 0.15s, border-color 0.15s; min-width: 0; }
.lesson-slot-empty:hover { opacity: 1; color: var(--primary-ink); background: rgba(0,0,0,0.03); border-color: var(--primary); }
.no-school-overlay { background: repeating-linear-gradient(135deg, rgba(0,0,0,0.4), rgba(0,0,0,0.4) 6px, rgba(0,0,0,0.15) 6px, rgba(0,0,0,0.15) 12px); pointer-events: none; z-index: 1; }

/* ============================================================
   grades.html
   ============================================================ */

.layout { max-width: var(--page-max, 860px); margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }

table { width: 100%; border-collapse: collapse; }
th { font-size: 10px; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.1em; padding: 0 8px 10px 0; text-align: left; border-bottom: 1px solid var(--border); font-weight: 700; }
th:last-child { text-align: center; width: 40px; }
td { padding: 5px 8px 5px 0; vertical-align: middle; }
td:last-child { text-align: center; }

input[type="text"], input[type="number"] {
    width: 100%;
    background: var(--well);
    border: 1px solid var(--border);
    color: var(--on-well);
    padding: 8px 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    outline: none;
    transition: border-color 0.15s;
}
input[type="text"]:focus, input[type="number"]:focus { border-color: var(--primary); }
input[type="number"] {
    text-align: right;
    -moz-appearance: textfield;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
    margin-left: 6px;
    width: 18px;
    height: 100%;
    cursor: pointer;
}

.score-cell { font-size: 11px; color: var(--text-light); min-width: 52px; font-family: var(--font-mono); }

.del-btn { background: none; border: 1px solid var(--border); cursor: pointer; color: var(--text-light); font-size: 14px; padding: 3px 8px; transition: color 0.15s, border-color 0.15s; }
.del-btn:hover { color: var(--danger); border-color: var(--danger); }

.add-btn { margin-top: 14px; font-size: 11px; letter-spacing: 0.06em; color: var(--text-light); background: none; border: 1px dashed var(--border); padding: 8px 16px; cursor: pointer; text-transform: uppercase; width: 100%; transition: color 0.15s, border-color 0.15s; }
.add-btn:hover { color: var(--primary-ink); border-color: var(--primary); }

.wt-error { font-size: 11px; color: var(--danger-ink); margin-top: 10px; min-height: 1.2em; }

.slider-row { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.slider-label { font-size: 12px; color: var(--text); width: 150px; flex-shrink: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

input[type="range"] {
    flex: 1; -webkit-appearance: none; appearance: none;
    height: 3px; background: var(--border); border-radius: 2px; outline: none; cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%;
    background: var(--primary); cursor: pointer; transition: transform 0.1s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.25); }
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--primary); cursor: pointer; border: none; }

.slider-val { font-size: 11px; font-weight: 900; min-width: 52px; text-align: right; color: var(--primary-ink); }

.reset-btn { font-size: 11px; letter-spacing: 0.06em; color: var(--text-light); background: none; border: 1px solid var(--border); padding: 7px 14px; cursor: pointer; text-transform: uppercase; margin-top: 6px; transition: color 0.15s, border-color 0.15s; }
.reset-btn:hover { color: var(--primary-ink); border-color: var(--primary); }

.no-sliders { font-size: 11px; color: var(--text-light); }

.results-grid { display: flex; gap: 16px; flex-wrap: wrap; }
.result-card { background: var(--well); border: 1px solid var(--border); padding: 18px 22px; flex: 1; min-width: 140px; }
.result-label { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-light); margin-bottom: 8px; }
.result-value { font-size: 2.4rem; font-weight: 900; letter-spacing: -0.02em; color: var(--primary); line-height: 1; }
.result-sub { font-size: 11px; color: var(--on-well); margin-top: 6px; opacity: 0.7; }
.target-card { flex: 2; }
.target-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.target-input { width: 80px !important; }
.target-pct { font-size: 12px; color: var(--on-well); opacity: 0.7; }

.badge { font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; padding: 3px 10px; font-weight: 900; }
.badge-warn { background: rgba(224,100,30,0.18); color: var(--warn); border: 1px solid var(--warn); }
.badge-ok   { background: rgba(31,157,99,0.18);  color: var(--ok);   border: 1px solid var(--ok); }

.needed { font-size: 12px; color: var(--on-well); opacity: 0.75; line-height: 1.7; }
.needed strong { color: var(--on-well); opacity: 1; font-weight: 900; font-style: normal; }

.suggestions-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }

.suggestion-item {
    display: flex; align-items: baseline; gap: 12px;
    padding: 12px 16px;
    background: var(--well);
    border: 1px solid var(--border);
    border-left: 3px solid var(--border);
    font-size: 12px; color: var(--on-well); line-height: 1.5; opacity: 0.9;
}
.suggestion-item.best {
    border-left: 3px solid var(--primary);
    background: #171c24;
    opacity: 1;
}

.suggestion-tag { font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--well); background: var(--text-light); padding: 2px 8px; font-weight: 900; flex-shrink: 0; }
.suggestion-tag.primary { background: var(--primary); color: var(--well); }
.suggestion-pts { color: var(--primary); font-weight: 900; }

.suggestion-note { font-size: 11px; color: var(--text-light); margin-top: 12px; border-left: 2px solid var(--border); padding-left: 10px; }

.on-track { font-size: 12px; color: var(--ok-ink); background: rgba(31,157,99,0.1); border: 1px solid var(--ok); padding: 12px 16px; }

.suggestion-item.best .suggestion-tag.primary {
    background: repeating-linear-gradient(-45deg, #6B4509, #6B4509 6px, #A6650D 6px, #A6650D 12px);
    color: #fff;
}

/* ============================================================
   calendar_builder.html
   ============================================================ */

.form-wrap { max-width: var(--page-max, 780px); margin: 0 auto; display: flex; flex-direction: column; gap: 28px; }
.section-hint { font-size: 11px; color: var(--text-light); margin-bottom: 16px; line-height: 1.6; font-family: var(--font-mono); }

.year-input { width: 100%; background: var(--well); border: 2px solid var(--border); color: var(--on-well); padding: 12px 16px; font-family: var(--font-mono); font-size: 16px; outline: none; }
.year-input:focus { border-color: var(--primary); }

.date-table { width: 100%; border-collapse: collapse; }
.date-table th { font-family: var(--font-mono); font-size: 10px; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.1em; padding: 0 8px 10px; text-align: left; font-weight: 700; }
.date-table th:first-child { width: 110px; padding-left: 0; }
.date-table td { padding: 4px 8px; vertical-align: middle; }
.date-table td:first-child { padding-left: 0; }
.row-label { font-family: var(--font-mono); font-size: 12px; color: var(--primary-ink); font-weight: 900; white-space: nowrap; }
.calc-label { font-family: var(--font-mono); font-size: 11px; color: var(--text-light); font-style: italic; }

.date-field { width: 100%; background: var(--well); border: 1px solid var(--border); color: var(--on-well); padding: 9px 12px; font-family: var(--font-mono); font-size: 12px; outline: none; }
.date-field:focus, .date-field.active { border-color: var(--primary); color: var(--primary); }
.date-field::placeholder { color: var(--well-subtle); }
.date-field[disabled] { opacity: 0.4; cursor: default; }
.date-field.invalid { border-color: var(--error); color: #F2A29C; }

.custom-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.custom-row { display: flex; gap: 8px; align-items: center; }
.custom-date { width: 150px; flex-shrink: 0; background: var(--well); border: 1px solid var(--border); color: var(--on-well); padding: 9px 12px; font-family: var(--font-mono); font-size: 12px; cursor: pointer; outline: none; caret-color: transparent; }
.custom-date:focus, .custom-date.active { border-color: var(--primary); }
.custom-label { flex: 1; background: var(--well); border: 1px solid var(--border); color: var(--on-well); padding: 9px 12px; font-family: var(--font-mono); font-size: 12px; outline: none; }
.custom-label:focus { border-color: var(--primary); }
.custom-label::placeholder { color: var(--well-subtle); }
.btn-remove { background: none; border: 1px solid var(--border); color: var(--text-light); width: 32px; height: 36px; cursor: pointer; font-size: 16px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.btn-remove:hover { border-color: var(--error); color: var(--error); }
.btn-add { background: transparent; border: 1px dashed var(--border); color: var(--text-light); font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; padding: 9px; cursor: pointer; width: 100%; }
.btn-add:hover { border-color: var(--primary); color: var(--primary-ink); }

.btn-generate { width: 100%; background: var(--primary); color: var(--well); border: none; font-family: var(--font-mono); font-weight: 900; font-size: 14px; text-transform: uppercase; letter-spacing: 3px; padding: 18px; cursor: pointer; }
.btn-generate:hover { background: #f5a623; }
.btn-generate:disabled { background: var(--border); color: var(--text-light); cursor: not-allowed; }
.error-msg { background: rgba(214,71,63,0.12); border: 1px solid var(--error); color: #7A241F; padding: 12px 16px; font-family: var(--font-mono); font-size: 12px; display: none; }
.error-msg.show { display: block; }

.picker-overlay { position: fixed; inset: 0; z-index: 999; display: none; }
.picker-overlay.open { display: block; }
.picker-popup { position: fixed; background: var(--well); border: 2px solid var(--primary); box-shadow: 8px 8px 0 rgba(0,0,0,0.15); z-index: 1000; width: 280px; display: none; }
.picker-popup.open { display: block; }
.picker-header { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.picker-month-label { font-family: var(--font-mono); font-size: 13px; font-weight: 900; color: var(--primary); text-transform: uppercase; }
.picker-nav { background: none; border: none; color: var(--primary); cursor: pointer; font-size: 16px; padding: 4px 8px; }
.picker-nav:hover { background: rgba(232,137,11,0.15); }
.picker-dow { display: grid; grid-template-columns: repeat(7,1fr); padding: 8px 8px 0; }
.picker-dow span { font-family: var(--font-mono); font-size: 9px; color: var(--text-light); text-align: center; padding: 4px 0; text-transform: uppercase; }
.picker-days { display: grid; grid-template-columns: repeat(7,1fr); padding: 4px 8px 12px; gap: 2px; }
.picker-day { font-family: var(--font-mono); font-size: 11px; text-align: center; padding: 6px 2px; cursor: pointer; border: 1px solid transparent; border-radius: 2px; color: var(--on-well); }
.picker-day:hover:not(.empty):not(.other-month) { border-color: var(--primary); color: var(--primary); }
.picker-day.selected { background: var(--primary); color: var(--well); font-weight: 900; }
.picker-day.today { color: var(--primary); }
.picker-day.empty { cursor: default; }
.picker-day.other-month { color: var(--well-subtle); cursor: default; }
.picker-day.weekend { opacity: 0.4; }
.picker-day.monday { border-left: 2px solid var(--well-subtle); }

/* ============================================================
   mobile.html
   ============================================================ */

body.page-mobile { font-family: var(--font-mono); background: var(--bg); color: var(--text); min-height: 100vh; padding-bottom: 40px; }

.m-header { background: var(--well); color: var(--on-well); padding: 16px 18px; position: sticky; top: 0; z-index: 50; border-bottom: 2px solid var(--border); }
.m-title-row { display: flex; align-items: center; }
.m-title { font-weight: 900; letter-spacing: 2px; text-transform: uppercase; color: var(--primary); font-size: 15px; }
.m-title-sub { color: var(--on-well); }
.m-header-links { display: flex; gap: 16px; margin-top: 8px; }
.m-header-links a { color: var(--on-well-muted); font-family: var(--font-mono); font-size: 11px; text-decoration: none; text-transform: uppercase; letter-spacing: 0.05em; }
.m-header-links a:hover { color: var(--primary); }

.m-year-bar { padding: 12px 16px; background: var(--panel); border-bottom: 1px solid var(--border); }
.m-year-bar select { width: 100%; background: var(--well); color: var(--on-well); border: 1px solid var(--border); padding: 10px; font-family: var(--font-mono); font-size: 14px; }

.m-main { padding: 16px; display: flex; flex-direction: column; gap: 20px; max-width: 640px; margin: 0 auto; }
.m-section { background: var(--panel); border: 2px solid var(--border); box-shadow: 6px 6px 0 rgba(0,0,0,0.08); }
.m-section-head { padding: 12px 16px; border-bottom: 2px solid var(--border); font-weight: 900; font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--primary-ink); }

.m-todo-add { display: flex; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.m-todo-add input { flex: 1; min-width: 0; background: var(--well); color: var(--on-well); border: 1px solid var(--border); padding: 10px; font-family: var(--font-mono); font-size: 14px; }
.m-add-btn { background: var(--primary); color: var(--well); border: none; padding: 0 16px; font-weight: 900; text-transform: uppercase; font-size: 12px; cursor: pointer; }

#m-todo-list { padding: 4px 16px 12px; }
.m-todo-item { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.m-todo-item:last-child { border-bottom: none; }
.m-todo-check { font-size: 17px; cursor: pointer; flex-shrink: 0; width: 22px; text-align: center; }
.m-todo-text { flex: 1; min-width: 0; font-size: 14px; word-break: break-word; }
.m-todo-text.done { text-decoration: line-through; opacity: 0.4; }
.m-todo-edit-input { flex: 1; min-width: 0; background: var(--well); color: var(--on-well); border: 1px solid var(--primary); padding: 6px 8px; font-family: var(--font-mono); font-size: 14px; }
.m-todo-move { font-size: 13px; color: var(--text-light); cursor: pointer; padding: 6px; flex-shrink: 0; }
.m-todo-del { font-size: 18px; color: var(--text-light); cursor: pointer; padding: 4px 6px; flex-shrink: 0; }
.m-todo-del:hover { color: var(--danger); }
.m-empty-todos { padding: 16px; color: var(--text-light); font-size: 13px; text-align: center; }

.m-week-nav { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.m-nav-btn { background: var(--well); color: var(--primary); border: 1px solid var(--border); width: 42px; height: 42px; font-size: 18px; cursor: pointer; }
.m-week-label { font-weight: 900; font-size: 13px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--primary-ink); }
.m-today-btn { display: block; width: calc(100% - 32px); margin: 12px 16px 0; background: transparent; border: 1px dashed var(--border); color: var(--text-light); padding: 10px; font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; cursor: pointer; }
.m-today-btn:hover { border-color: var(--primary); color: var(--primary-ink); }

#m-week-days { padding: 12px 16px 16px; display: flex; flex-direction: column; gap: 12px; }
.m-day-card { border: 1px solid var(--border); background: var(--bg); }
.m-day-card.m-today { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.m-day-head { display: flex; justify-content: space-between; padding: 8px 12px; font-size: 12px; font-weight: 900; text-transform: uppercase; color: var(--text-light); background: rgba(0,0,0,0.04); border-bottom: 1px solid var(--border); }
.m-no-school-banner { background: repeating-linear-gradient(-45deg, var(--s0-dark), var(--s0-dark) 8px, var(--s0-light) 8px, var(--s0-light) 16px); color: #fff; text-align: center; font-size: 11px; font-weight: 900; text-transform: uppercase; padding: 6px; text-shadow: 1px 1px 0 rgba(0,0,0,0.9), -1px -1px 0 rgba(0,0,0,0.9); }
.m-chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px; }
.m-chip { font-size: 10px; padding: 3px 8px; font-weight: 900; text-transform: uppercase; color: #fff; text-shadow: 1px 1px 0 rgba(0,0,0,0.6); }
.m-chip-s0 { background: var(--s0-light); }
.m-chip-s1 { background: var(--s1-light); }
.m-chip-s2 { background: var(--s2-light); }
.m-lessons { padding: 4px 12px 10px; display: flex; flex-direction: column; gap: 6px; }
.m-lesson-row { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; padding: 4px 0; }
.m-lesson-slot { font-family: var(--font-mono); font-size: 10px; color: var(--text-light); flex-shrink: 0; padding-top: 2px; }
.m-lesson-title { flex: 1; min-width: 0; white-space: pre-wrap; word-break: break-word; cursor: text; }
.m-lesson-del { font-size: 16px; color: var(--text-light); cursor: pointer; padding: 2px 6px; flex-shrink: 0; margin-top: 1px; }
.m-lesson-del:hover { color: var(--danger); }
.m-lesson-edit-input { flex: 1; min-width: 0; display: block; resize: none; overflow: hidden; background: var(--well); color: var(--on-well); border: 1px solid var(--primary); padding: 5px 8px; font-family: var(--font-mono); font-size: 13px; line-height: 1.4; }
.m-lesson-empty { font-size: 12px; color: var(--text-light); opacity: 0.6; font-style: italic; padding: 4px 0; }
.m-add-lesson-btn { display: block; width: 100%; text-align: left; margin-top: 4px; background: transparent; border: 1px dashed var(--border); color: var(--text-light); font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; padding: 8px 10px; cursor: pointer; }
.m-add-lesson-btn:hover { border-color: var(--primary); color: var(--primary-ink); }
.m-empty { padding: 24px; text-align: center; color: var(--text-light); font-size: 13px; }