@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --primary: #3b82f6; --primary-hover: #2563eb; --bg: #f8fafc; --card: #ffffff;
    --text: #111827; --text-sec: #6b7280; --border: #e5e7eb; --success: #10b981;
    --danger: #ef4444; --danger-hover: #dc2626; --warning: #f59e0b;
    --sidebar-bg: #1e293b; --sidebar-text: #94a3b8; --sidebar-active: #3b82f6;
}

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

/* Sidebar */
.sidebar { width: 240px; background: var(--sidebar-bg); display: flex; flex-direction: column; padding: 24px 16px; flex-shrink: 0; }
.sidebar-header { display: flex; align-items: center; justify-content: center; padding: 0 8px 24px; border-bottom: 1px solid rgba(255,255,255,0.08); margin-bottom: 24px; }
.sidebar-header img { width: 120px; height: auto; display: block; }
.sidebar-nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 12px; border: none; background: transparent; color: var(--sidebar-text); font-size: 14px; font-weight: 500; cursor: pointer; transition: background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)), color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)), transform 0.1s ease-out; text-align: left; width: 100%; }
.nav-item:hover { background: rgba(255,255,255,0.06); color: #e2e8f0; }
.nav-item:active { transform: scale(0.97); }
.nav-item.active { background: var(--sidebar-active); color: #fff; }
.nav-item svg { flex-shrink: 0; }
.logout-btn { margin-top: auto; color: #ef4444; }
.logout-btn:hover { background: rgba(239,68,68,0.1); }

/* Main Content */
.main-content { flex: 1; overflow-y: auto; padding: 32px 40px; }
.content-section { display: none; }
.content-section.active {
    display: block;
    animation: contentSectionIn 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)) both;
}
@keyframes contentSectionIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.section-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
.section-desc { color: var(--text-sec); font-size: 14px; margin-bottom: 24px; }
.subsection-title { font-size: 18px; font-weight: 700; margin: 32px 0 8px; }
.add-group-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.add-group-row .form-input { width: auto; min-width: 160px; }

/* Upload */
.upload-area { margin-bottom: 24px; }
.json-textarea {
    width: 100%; min-height: 260px; padding: 20px; border: 2px solid var(--border); border-radius: 16px;
    font-family: 'Courier New', monospace; font-size: 13px; color: var(--text); background: var(--card);
    resize: vertical; outline: none; transition: border-color 0.2s; line-height: 1.6;
}
.json-textarea:focus { border-color: var(--primary); }
.upload-actions { display: flex; align-items: center; gap: 16px; margin-top: 16px; }
.upload-status { font-size: 14px; font-weight: 500; }
.upload-status.success { color: var(--success); }
.upload-status.error { color: var(--danger); }
.format-hint { background: #f0f9ff; border: 1px solid #bae6fd; border-radius: 12px; padding: 20px; }
.format-hint h3 { font-size: 14px; font-weight: 600; margin-bottom: 8px; color: var(--primary); }
.format-hint p { font-size: 13px; color: var(--text-sec); margin-bottom: 4px; }

/* Buttons */
.btn { padding: 10px 24px; border-radius: 12px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; transition: background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)), transform 0.15s ease-out, box-shadow 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)); text-decoration: none; display: inline-flex; align-items: center; justify-content: center; }
.btn:active:not(:disabled) { transform: scale(0.96); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-secondary { background: var(--card); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #f3f4f6; }
.btn-danger { background: transparent; color: var(--danger); border: none; padding: 6px 12px; font-size: 13px; transition: background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)), transform 0.1s ease-out; }
.btn-danger:hover { background: rgba(239,68,68,0.08); }
.btn-danger:active { transform: scale(0.94); }
.btn-edit { background: transparent; color: var(--primary); border: none; padding: 6px 12px; font-size: 13px; transition: background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)), transform 0.1s ease-out; }
.btn-edit:hover { background: rgba(59,130,246,0.08); }
.btn-edit:active { transform: scale(0.94); }
.load-unconfirmed-note { margin: 0 0 14px; padding: 10px 14px; border-radius: 10px; background: rgba(245,158,11,0.10); color: #92400e; font-size: 14px; line-height: 1.5; }
.load-unmatched-note { margin: 0 0 14px; padding: 10px 14px; border-radius: 10px; background: rgba(239,68,68,0.10); color: #991b1b; font-size: 14px; line-height: 1.5; }
.load-unmatched-title { margin: 0 0 6px; font-weight: 600; }
.load-unmatched-list { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 4px; }
.load-hours-empty { color: var(--text-secondary); }
.btn-link {
    background: none; border: none; padding: 0; font: inherit; cursor: pointer;
    color: var(--primary); text-decoration: none; font-weight: 600;
}
.btn-link:hover { text-decoration: underline; }
.btn-delete { background: transparent; color: var(--danger); border: 1px solid rgba(239,68,68,0.35); margin-right: auto; }
.btn-delete:hover { background: rgba(239,68,68,0.08); border-color: var(--danger); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Lessons */
.lessons-toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 20px; }
.group-select { padding: 10px 16px; border: 1px solid var(--border); border-radius: 12px; font-size: 14px; min-width: 200px; outline: none; background: var(--card); }
.group-select:focus { border-color: var(--primary); }
/* The builder's searchable group field (GroupPicker.jsx) — the select's look,
   a chevron, and the lesson form's dropdown list under it. */
.group-picker { position: relative; min-width: 240px; }
.group-picker-input { width: 100%; padding-right: 36px; cursor: pointer; }
.group-picker-input:focus { cursor: text; }
.group-picker-input::placeholder { color: var(--text); }
.group-picker-input:focus::placeholder { color: var(--text-sec); }
.group-picker-chevron { position: absolute; right: 14px; top: 50%; transform: translateY(-50%); color: var(--text-sec); pointer-events: none; }
.group-picker-list { max-height: 320px; min-width: 180px; }
.group-picker-list .dict-picker-option { font-size: 14px; }
.dict-picker-option.is-highlighted { background: rgba(59,130,246,0.08); color: var(--primary); }
.lessons-table-wrapper { background: var(--card); border-radius: 16px; border: 1px solid var(--border); overflow: hidden; }
.lessons-table { width: 100%; border-collapse: collapse; }
.lessons-table th { text-align: left; padding: 14px 16px; font-size: 12px; font-weight: 600; color: var(--text-sec); text-transform: uppercase; letter-spacing: 0.5px; background: #f9fafb; border-bottom: 1px solid var(--border); }
.lessons-table td { padding: 12px 16px; font-size: 14px; border-bottom: 1px solid var(--border); }
.lessons-table tr:last-child td { border-bottom: none; }
.lessons-table tr:hover td { background: #f8fafc; }
.empty-message { padding: 40px; text-align: center; color: var(--text-sec); font-size: 14px; }

/* Day labels */
.day-label { display: inline-block; padding: 4px 10px; border-radius: 6px; font-size: 12px; font-weight: 500; background: #dbeafe; color: #2563eb; }
.week-label { font-size: 11px; color: var(--text-sec); }
.week-label.odd { color: #7c3aed; }
.week-label.even { color: #059669; }

/* Settings */
.settings-form { max-width: 500px; }
.setting-row { margin-bottom: 24px; }
.setting-row label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.setting-hint { font-size: 13px; color: var(--text-sec); margin-bottom: 8px; }
.setting-input { padding: 10px 16px; border: 1px solid var(--border); border-radius: 12px; font-size: 14px; outline: none; width: 100%; background: var(--card); }
.setting-input:focus { border-color: var(--primary); }

/* Schedule builder */
.builder-toolbar { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.builder-tabs { display: flex; gap: 4px; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 4px; }
.builder-tab {
    padding: 8px 14px; border-radius: 9px; border: none; background: transparent;
    color: var(--text-sec); font-size: 13px; font-weight: 600; cursor: pointer; white-space: nowrap;
    transition: background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}
.builder-tab:hover { color: var(--text); }
.builder-tab.active { background: var(--primary); color: #fff; }
.builder-hint {
    font-size: 13px; color: var(--text-sec); background: #f0f9ff; border: 1px solid #bae6fd;
    border-radius: 10px; padding: 10px 14px; margin-bottom: 16px;
}
.builder-export-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.builder-export-input { width: 220px; padding: 8px 12px; font-size: 13px; }
.modal-hint { font-size: 12.5px; color: var(--text-sec); margin: -12px 0 16px; }
.builder-week-nav { display: flex; align-items: center; gap: 4px; background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 4px; }
.week-nav-btn {
    width: 32px; height: 32px; border-radius: 9px; border: none; background: transparent;
    color: var(--text-sec); font-size: 18px; line-height: 1; cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
    transition: background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                transform 0.12s ease-out;
}
.week-nav-btn:hover { background: var(--card); color: var(--text); }
.week-nav-btn:active { transform: scale(0.9); }
.builder-week-current {
    padding: 0 12px;
    font-size: 14px; font-weight: 700; color: var(--text); white-space: nowrap;
}

.builder-grid-wrapper { overflow-x: auto; border: 1px solid var(--border); border-radius: 16px; background: var(--card); }
.builder-grid { min-width: 1040px; }
.builder-row { display: flex; border-bottom: 1px solid var(--border); }
.builder-row:last-child { border-bottom: none; }
.builder-header-row { background: #f9fafb; border-bottom: 2px solid var(--border); }
.builder-slot-label {
    flex: 0 0 96px; padding: 10px; font-size: 12px; font-weight: 600; color: var(--text-sec);
    display: flex; align-items: center; border-right: 1px solid var(--border);
    /* Stays in view while a narrow screen scrolls the days sideways. */
    position: sticky; left: 0; z-index: 2; background: var(--card);
}
.builder-header-row .builder-slot-label { background: #f9fafb; }
/* Every column takes an equal share and never grows to fit its content
   (basis 0, min-width 0): with a content-sized basis one long subject widened
   only its own cell, so on narrow screens a row stopped lining up with the
   day headers. Below ~1040px the grid scrolls sideways instead. */
.builder-row-cells { display: flex; flex: 1; min-width: 0; }
.builder-day-header { flex: 1 1 0; min-width: 0; padding: 12px 8px; text-align: center; font-size: 13px; font-weight: 700; color: var(--text); border-right: 1px solid var(--border); }
.builder-day-header:last-child { border-right: none; }
.builder-cell { flex: 1 1 0; min-width: 0; min-height: 76px; border-right: 1px solid var(--border); padding: 6px; display: flex; }
.builder-cell:last-child { border-right: none; }

.builder-add-btn {
    flex: 1; border: 1.5px dashed var(--border); border-radius: 10px; background: transparent;
    color: var(--text-sec); font-size: 18px; line-height: 1; cursor: pointer; min-height: 64px;
    display: flex; align-items: center; justify-content: center; opacity: 0;
    transition: border-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                opacity 0.15s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                transform 0.12s ease-out;
}
.builder-cell:hover .builder-add-btn,
.builder-add-btn:focus-visible { opacity: 1; }
.builder-add-btn:hover { border-color: var(--primary); color: var(--primary); background: rgba(59,130,246,0.06); }
.builder-add-btn:active { transform: scale(0.94); }
.builder-add-btn.half { min-height: 100%; }

.builder-cell-split { display: flex; gap: 6px; flex: 1; min-width: 0; }
.builder-cell-split > * { flex: 1 1 0; min-width: 0; }

/* Drag-and-drop: the card being dragged fades back, and every cell shows a
   soft target outline so it's obvious where it can land. */
.builder-lesson-card { cursor: grab; }
.builder-lesson-card:active { cursor: grabbing; }
.builder-lesson-card.is-dragging { opacity: 0.4; }

.builder-cell.is-drop-target {
    box-shadow: inset 0 0 0 1.5px rgba(59, 130, 246, 0.25);
    border-radius: 10px;
}

.builder-cell.is-drag-over {
    background: rgba(59, 130, 246, 0.1);
    box-shadow: inset 0 0 0 2px var(--primary);
}

.builder-lesson-card {
    flex: 1; text-align: left; border: none; border-radius: 10px; padding: 8px 10px;
    background: #dbeafe; color: #1e3a8a; cursor: pointer; display: flex; flex-direction: column; gap: 4px;
    min-height: 64px; min-width: 0;
    transition: background-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)), transform 0.12s ease-out;
}
.builder-lesson-card:hover { background: #bfdbfe; }
.builder-lesson-card:active { transform: scale(0.97); }
.builder-lesson-subject { font-size: 12.5px; font-weight: 700; line-height: 1.3; hyphens: auto; overflow-wrap: anywhere; }
.builder-lesson-meta { display: flex; gap: 6px; flex-wrap: wrap; font-size: 11px; color: #3b5b99; }
.builder-lesson-subgroup-tag { font-size: 10px; font-weight: 700; color: #d97706; text-transform: uppercase; letter-spacing: 0.03em; }
.builder-lesson-room { font-size: 11px; color: #3b5b99; }
.builder-lesson-teacher {
    display: block; max-width: 100%; font-size: 10.5px; color: #4a6fa1;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Audit */
.audit-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.section-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.audit-table-wrapper { overflow-x: auto; }
.audit-table { min-width: 980px; }
.audit-details-cell { max-width: 360px; color: var(--text-sec); line-height: 1.5; }

/* Modal */
.modal-overlay {
    position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 1000;
    background: rgba(0,0,0,0);
    backdrop-filter: blur(0px);
    opacity: 0; visibility: hidden; pointer-events: none;
    transition: opacity 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                background-color 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                backdrop-filter 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                visibility 0s linear 0.25s;
}
.modal-overlay.active {
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    opacity: 1; visibility: visible; pointer-events: auto;
    transition: opacity 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                background-color 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                backdrop-filter 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                visibility 0s linear 0s;
}
.modal-card {
    background: var(--card); border-radius: 20px; padding: 32px; width: 100%; max-width: 520px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    transform: translateY(16px) scale(0.96);
    transition: transform 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}
.modal-overlay.active .modal-card { transform: translateY(0) scale(1); }
.modal-title { font-size: 20px; font-weight: 700; margin-bottom: 24px; letter-spacing: -0.01em; }
.edit-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: flex; flex-direction: column; gap: 4px; }
.form-row label { font-size: 13px; font-weight: 600; color: var(--text-sec); }
.form-row-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-input { padding: 10px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 14px; outline: none; background: var(--card); transition: border-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)); }
.form-input:focus { border-color: var(--primary); }
.modal-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 8px; }

/* Toast */
.toast {
    position: fixed; bottom: 24px; right: 24px; background: var(--sidebar-bg); color: #fff;
    padding: 14px 24px; border-radius: 12px; font-size: 14px; font-weight: 500; z-index: 2000;
    opacity: 0; visibility: hidden; pointer-events: none;
    transform: translateY(16px) scale(0.96);
    transition: opacity 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                transform 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                visibility 0s linear 0.25s;
}
.toast.active {
    opacity: 1; visibility: visible; pointer-events: auto;
    transform: translateY(0) scale(1);
    transition: opacity 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                transform 0.25s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)),
                visibility 0s linear 0s;
}

/* Load tracking */
.load-section { max-width: 1080px; }
.load-plan-heading-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 8px; }
.load-plan-heading-row .subsection-title { margin-bottom: 0; }

/* Семестр — карточка: выбор + статус сверху, факты, затем действия.
   Формы изменения и нового семестра раскрываются внутри той же карточки. */
.btn-sm { padding: 7px 14px; border-radius: 10px; font-size: 13px; }
.sem-card {
    background: var(--card); border: 1px solid var(--border); border-radius: 16px;
    padding: 18px 20px; margin-bottom: 8px; display: flex; flex-direction: column; gap: 16px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}
.sem-head { display: flex; align-items: flex-end; gap: 12px; flex-wrap: wrap; }
.sem-picker { display: flex; flex-direction: column; gap: 6px; min-width: 240px; }
.sem-field-label { font-size: 12px; font-weight: 600; color: var(--text-sec); }
.sem-select { font-weight: 600; width: 100%; }
.sem-badges { display: flex; gap: 6px; flex-wrap: wrap; padding-bottom: 8px; }
.sem-badge { font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; white-space: nowrap; }
.sem-badge.is-active { color: #047857; background: rgba(16,185,129,0.12); }
.sem-badge.is-closed { color: var(--danger); background: rgba(239,68,68,0.10); }
.sem-new-btn { margin-left: auto; }
.sem-facts {
    display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin: 0;
    background: var(--border); border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.sem-facts > div { background: var(--bg); padding: 10px 14px; }
.sem-facts dt { font-size: 12px; color: var(--text-sec); margin-bottom: 2px; }
.sem-facts dd { margin: 0; font-size: 14px; font-weight: 600; color: var(--text); }
.sem-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.sem-close-btn { margin-left: auto; margin-right: 0; }
.sem-form { display: flex; flex-direction: column; gap: 12px; }
.sem-add { border-top: 1px solid var(--border); padding-top: 16px; }
.sem-form-title { font-size: 14px; font-weight: 700; margin: 0; }
.sem-form-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.sem-form-grid.is-four { grid-template-columns: 2fr 1.4fr 0.8fr 1.2fr; }
.sem-form-grid label { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.sem-form-grid .form-input { width: 100%; min-width: 0; }
.sem-hint { margin: 0; font-size: 13px; color: var(--text-sec); }

/* Преподаватели / дисциплины — карточки с превью-списком */
.load-refs-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 8px; }
.load-ref-card {
    background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px;
    display: flex; flex-direction: column; gap: 12px;
}
.load-ref-add-row { display: flex; align-items: center; gap: 10px; }
.load-ref-add-row .form-input { flex: 1; min-width: 0; }
.load-ref-card-header {
    display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700;
    color: var(--text-sec); text-transform: uppercase; letter-spacing: 0.04em;
    padding-top: 4px; border-top: 1px solid var(--border);
}
.load-ref-count {
    display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 20px;
    padding: 0 6px; border-radius: 999px; background: rgba(59,130,246,0.12); color: var(--primary);
    font-size: 11px; font-weight: 700;
}
/* Плоский информационный список — не интерактивный: фильтровать план ниже
   можно только через отдельную строку поиска, чтобы не было двух похожих,
   но разных действий («выбрать препода» в форме добавления и «фильтровать
   таблицу» здесь). */
.load-ref-list { list-style: none; display: flex; flex-direction: column; gap: 2px; }
.load-ref-list li {
    padding: 9px 10px; border-radius: 8px; font-size: 14px; color: var(--text);
}
.load-ref-row {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    transition: background-color 0.15s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}
.load-ref-row:hover { background: var(--bg); }
.load-ref-row-actions { display: flex; align-items: center; gap: 2px; flex-shrink: 0; }
.load-ref-row-actions button {
    width: 24px; height: 24px; border-radius: 6px; border: none; background: none; cursor: pointer;
    color: var(--text-sec); font-size: 12px; opacity: 0.4; transition: opacity 0.15s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)), background-color 0.15s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}
.load-ref-row:hover .load-ref-row-actions button,
.load-ref-row-actions button:focus-visible { opacity: 1; }
.load-ref-row-actions button:hover { background: rgba(59,130,246,0.1); color: var(--primary); }
.load-ref-row-actions button:last-child:hover { background: rgba(239,68,68,0.1); color: var(--danger); }
.load-ref-empty { font-size: 13px; color: var(--text-sec); padding: 9px 10px; }
.load-ref-all { align-self: flex-start; font-size: 13px; }

/* Панель плана — статистика заполненности над таблицей */
.load-plan-stats {
    display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-sec);
    font-weight: 600; margin-bottom: 14px; flex-wrap: wrap;
}
.load-plan-stats-dot { opacity: 0.5; }
.load-plan-stats-progress {
    width: 120px; height: 6px; border-radius: 999px; background: rgba(59,130,246,0.12);
    overflow: hidden; margin: 0 2px;
}
.load-plan-stats-progress-fill {
    height: 100%; border-radius: 999px; background: var(--primary);
    transition: width 0.4s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}

.load-plan-form { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.load-plan-form .form-input { width: auto; min-width: 140px; }
.load-subgroup-input { min-width: 110px !important; }
.load-hours-input { width: 90px !important; min-width: 90px !important; }

/* Тулбар поиска/фильтра над самой таблицей плана */
.load-plan-toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.load-plan-search {
    display: flex; align-items: center; gap: 8px; flex: 1; min-width: 220px;
    padding: 9px 14px; background: var(--card); border: 1px solid var(--border); border-radius: 10px;
    color: var(--text-sec);
    transition: border-color 0.2s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}
.load-plan-search:focus-within { border-color: var(--primary); }
.load-plan-search input {
    flex: 1; border: none; outline: none; background: none; font: inherit; font-size: 14px; color: var(--text);
}
.load-plan-search input::-webkit-search-decoration,
.load-plan-search input::-webkit-search-cancel-button { -webkit-appearance: none; appearance: none; }
.load-plan-group-filter { width: auto; min-width: 160px; }
.load-plan-filter-active {
    display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--text-sec);
    white-space: nowrap;
}
.load-plan-filter-clear { font-size: 12px; }

.load-type-badge {
    display: inline-block; padding: 3px 9px; border-radius: 7px; font-size: 12px; font-weight: 600;
    background: rgba(59,130,246,0.1); color: var(--primary); white-space: nowrap;
}

.load-progress-cell { display: flex; align-items: center; gap: 8px; min-width: 150px; }
.load-hours-figure { font-size: 13px; font-weight: 700; color: var(--text); white-space: nowrap; flex-shrink: 0; }
.load-progress-track {
    flex: 1; height: 8px; border-radius: 999px; background: rgba(59,130,246,0.12); overflow: hidden;
}
.load-progress-fill {
    height: 100%; border-radius: 999px; background: var(--primary);
    transition: width 0.4s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}
.load-progress-cell span { font-size: 12px; font-weight: 600; color: var(--text-sec); white-space: nowrap; }

/* Строка редактирования — заменяет обычную строку целиком, поля как в форме
   добавления, но предзаполненные текущими значениями. */
.load-edit-row td { padding: 8px 10px; background: rgba(59,130,246,0.04); }
.load-edit-row .form-input { width: 100%; min-width: 0; }
.load-edit-group-cell { display: flex; flex-direction: column; gap: 6px; }
.load-edit-subgroup { font-size: 12px; }
.load-edit-hours { width: 100%; }
.load-edit-actions { display: flex; align-items: center; gap: 12px; white-space: nowrap; }
.load-edit-save { padding: 8px 16px; font-size: 13px; }

/* Kebab-меню действий в последней колонке строки плана */
.load-row-menu-cell { width: 44px; text-align: center; }
.load-row-menu { position: relative; display: inline-block; }
.load-row-menu-trigger {
    width: 28px; height: 28px; border-radius: 8px; border: none; background: none; cursor: pointer;
    color: var(--text-sec); font-size: 16px; line-height: 1; font-weight: 700;
    transition: background-color 0.15s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1));
}
.load-row-menu-trigger:hover { background: var(--bg); color: var(--text); }
.load-row-menu-dropdown {
    position: absolute; top: calc(100% + 4px); right: 0; z-index: 5; min-width: 120px;
    background: var(--card); border: 1px solid var(--border); border-radius: 10px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12); padding: 4px; text-align: left;
    animation: loadMenuIn 0.15s var(--ease-spring, cubic-bezier(0.22, 1, 0.36, 1)) both;
}
@keyframes loadMenuIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.load-row-menu-item {
    width: 100%; text-align: left; padding: 8px 10px; border-radius: 7px; border: none; background: none;
    font: inherit; font-size: 13px; font-weight: 500; color: var(--text); cursor: pointer;
}
.load-row-menu-item:hover { background: var(--bg); }
.load-row-menu-item.danger { color: var(--danger); }
.load-row-menu-item.danger:hover { background: rgba(239,68,68,0.08); }

/* Plan row auto-created from an imported schedule, hours not entered yet. */
.load-hours-editor { display: flex; align-items: center; gap: 8px; min-width: 140px; }
.load-hours-editor-label {
    font-size: 12px;
    font-style: italic;
    color: var(--text-sec);
    opacity: 0.75;
    white-space: nowrap;
}
.load-hours-editor input {
    width: 64px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 13px;
    background: var(--bg);
    color: var(--text);
}

.dict-picker { position: relative; }
.dict-picker-hint { display: block; font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.dict-picker-list {
    position: absolute; top: 100%; left: 0; right: 0; z-index: 20; margin-top: 4px;
    max-height: 220px; overflow-y: auto; display: flex; flex-direction: column; gap: 2px;
    background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 6px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.dict-picker-option {
    text-align: left; padding: 8px 10px; border-radius: 8px; border: none; background: none;
    color: var(--text); font-size: 13px; cursor: pointer;
}
.dict-picker-option:hover { background: rgba(59,130,246,0.08); color: var(--primary); }
.dict-picker-option.selected { background: rgba(59,130,246,0.1); color: var(--primary); font-weight: 600; }
.dict-picker-option.dict-picker-create { color: var(--primary); font-weight: 600; border-top: 1px solid var(--border); margin-top: 2px; padding-top: 10px; }
.dict-picker-empty { margin: 6px 8px; font-size: 13px; color: var(--text-secondary); }

@media (max-width: 768px) {
    .load-refs-row { grid-template-columns: 1fr; gap: 16px; }
    .load-plan-form { flex-direction: column; align-items: stretch; }
    .load-plan-form .form-input { width: 100%; min-width: 0; }
    .load-subgroup-input, .load-hours-input { width: 100% !important; }

    .sem-picker { min-width: 0; flex: 1 1 100%; }
    .sem-badges { padding-bottom: 0; }
    .sem-new-btn { margin-left: 0; }
    .sem-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sem-form-grid, .sem-form-grid.is-four { grid-template-columns: 1fr; }
    .sem-close-btn { margin-left: 0; }

    .load-plan-toolbar { flex-direction: column; align-items: stretch; }
    .load-plan-filter-active { justify-content: space-between; }
    .load-plan-group-filter { width: 100%; min-width: 0; }
}

@media (max-width: 768px) {
    /* Layout: column, sidebar becomes fixed bottom tab bar */
    body { overflow-y: auto; height: auto; min-height: 100vh; }
    .dashboard { flex-direction: column; height: auto; min-height: 100vh; }

    /* Bottom tab bar */
    .sidebar {
        position: fixed; bottom: 0; left: 0; right: 0;
        width: 100%; height: 60px; flex-direction: row;
        padding: 0; border-top: 1px solid rgba(255,255,255,0.1);
        z-index: 500; overflow: hidden;
    }
    .sidebar-header { display: none; }
    .sidebar-nav { flex-direction: row; flex: 1; gap: 0; align-items: stretch; overflow: hidden; }
    .nav-item {
        flex: 1; flex-direction: column; justify-content: center;
        align-items: center; padding: 8px 2px; border-radius: 0;
        gap: 0; font-size: 0; min-width: 0; overflow: hidden;
    }
    .nav-item svg { flex-shrink: 0; width: 22px; height: 22px; }
    .logout-btn {
        flex: 0 0 56px; border-left: 1px solid rgba(255,255,255,0.08);
        font-size: 0; margin-top: 0;
    }

    /* Main content */
    .main-content { padding: 20px 16px 72px; }
    .section-title { font-size: 20px; }

    /* Upload */
    .json-textarea { min-height: 180px; font-size: 12px; }
    .upload-actions { flex-wrap: wrap; gap: 12px; }
    .format-hint code { word-break: break-all; }

    /* Tables */
    .lessons-table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .lessons-table { min-width: 580px; }
    .lessons-toolbar { flex-wrap: wrap; }
    .group-select { flex: 1; min-width: 0; font-size: 16px; }
    .group-picker { flex: 1; min-width: 0; }

    /* Audit */
    .audit-header { flex-direction: column; align-items: stretch; gap: 12px; }
    .section-actions { width: 100%; justify-content: flex-end; }

    /* Settings */
    .settings-form { max-width: 100%; }

    /* Modal — выезжает снизу */
    .modal-overlay { align-items: flex-end; padding: 0; }
    .modal-card {
        border-radius: 24px 24px 0 0; padding: 24px 20px 32px;
        max-width: 100%; width: 100%; max-height: 90vh; overflow-y: auto;
        box-shadow: 0 -8px 40px rgba(0,0,0,0.15);
        transform: translateY(100%);
    }
    .modal-overlay.active .modal-card { transform: translateY(0); }
    .modal-actions { justify-content: stretch; }
    .modal-actions .btn { flex: 1; }

    /* Prevent iOS input zoom */
    .form-input { font-size: 16px; }
    .setting-input { font-size: 16px; }
    .json-textarea { font-size: 13px; }

    /* Forms */
    .form-row-pair { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .main-content { padding: 16px 12px 72px; }
    .modal-card { padding: 20px 16px 28px; }
    .section-title { font-size: 18px; }
    .btn { padding: 10px 16px; }
}

/* Reduced motion: people who turn motion down in their OS get instant state
   changes instead of slides, springs and the endlessly floating circles. */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}