/* =========================================================
   HorárioEscolar – Global CSS (Dark Professional Theme)
   ========================================================= */

/* ── Variables ─────────────────────────────────────────── */
:root {
    --font-family: 'Inter', system-ui, sans-serif;

    /* brand */
    --primary:       hsl(220, 90%, 56%);
    --primary-light: hsl(220, 90%, 70%);
    --primary-dark:  hsl(220, 90%, 42%);
    --secondary:     hsl(260, 70%, 60%);
    --accent:        hsl(190, 85%, 48%);
    --success:       hsl(145, 63%, 48%);
    --warning:       hsl(38,  92%, 55%);
    --danger:        hsl(354, 70%, 54%);

    /* surfaces */
    --bg-root:       hsl(222, 24%, 8%);
    --bg-sidebar:    hsl(222, 24%, 10%);
    --bg-card:       hsl(222, 22%, 13%);
    --bg-card-hover: hsl(222, 22%, 16%);
    --bg-input:      hsl(222, 20%, 17%);
    --border:        hsl(222, 20%, 22%);

    /* text */
    --text-primary:   hsl(220, 20%, 96%);
    --text-secondary: hsl(220, 15%, 68%);
    --text-muted:     hsl(220, 12%, 50%);

    /* misc */
    --radius:        12px;
    --radius-sm:      8px;
    --radius-lg:     16px;
    --shadow:        0 4px 24px hsl(220 40% 4% / .5);
    --shadow-lg:     0 8px 40px hsl(220 40% 4% / .7);
    --glass:         hsl(222 24% 16% / .7);
    --transition:    0.2s ease;
}

/* ── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; font-size: 14px; }

body {
    height: 100%;
    font-family: var(--font-family);
    background: var(--bg-root);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ── App Loader ────────────────────────────────────────── */
.app-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: var(--bg-root);
    gap: 24px;
}

.app-loader-logo {
    text-align: center;
    animation: fadeInUp 0.6s ease both;
}

.app-loader-logo .loader-icon {
    font-size: 64px;
    display: block;
    margin-bottom: 16px;
    animation: pulse 2s ease infinite;
}

.app-loader-logo h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
}

.app-loader-logo p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 8px;
}

.loader-bar {
    width: 240px;
    height: 4px;
    background: var(--border);
    border-radius: 99px;
    overflow: hidden;
}

.loader-bar-inner {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 99px;
    animation: loaderSlide 1.5s ease infinite;
}

@keyframes loaderSlide {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(400%); }
}

/* ── MudBlazor Overrides ───────────────────────────────── */
.mud-theme-default {
    --mud-palette-background:             var(--bg-root) !important;
    --mud-palette-surface:                var(--bg-card) !important;
    --mud-palette-drawer-background:      var(--bg-sidebar) !important;
    --mud-palette-appbar-background:      var(--bg-sidebar) !important;
    --mud-palette-primary:                var(--primary) !important;
    --mud-palette-text-primary:           var(--text-primary) !important;
    --mud-palette-text-secondary:         var(--text-secondary) !important;
}

/* ── Layout ────────────────────────────────────────────── */
.page-container {
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

/* ── Cards ─────────────────────────────────────────────── */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0;
    background: linear-gradient(135deg, var(--primary) / .05, transparent);
    transition: opacity var(--transition);
}

.stat-card:hover::before { opacity: 1; }
.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.stat-card-icon {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
}

.stat-card-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-card-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

/* ── Kanban Board ──────────────────────────────────────── */
.kanban-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    min-width: 900px;
}

.kanban-col-header {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    padding: 12px 8px;
    text-align: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.kanban-row-label {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    padding: 8px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    writing-mode: horizontal-tb;
    white-space: nowrap;
    min-width: 90px;
}

.kanban-cell {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 0;
    min-height: 80px;
    padding: 4px;
    transition: background var(--transition);
    position: relative;
}

.kanban-cell:hover {
    background: var(--bg-card-hover);
}

.kanban-cell.drop-zone-active {
    background: hsl(220 90% 56% / .12);
    border-color: var(--primary);
}

/* ── Horario Card ──────────────────────────────────────── */
.horario-card {
    background: linear-gradient(135deg, var(--primary-dark), hsl(240 60% 35%));
    border: 1px solid var(--primary) / .3;
    border-radius: var(--radius-sm);
    padding: 6px 8px;
    cursor: grab;
    transition: all var(--transition);
    font-size: 0.78rem;
    line-height: 1.4;
    user-select: none;
}

.horario-card:active { cursor: grabbing; }

.horario-card:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 16px hsl(220 90% 56% / .4);
}

.horario-card.has-conflict {
    background: linear-gradient(135deg, hsl(354 70% 35%), hsl(354 60% 28%));
    border-color: var(--danger);
    animation: conflictPulse 0.5s ease;
}

.horario-card.solver-generated::after {
    content: '🤖';
    position: absolute;
    top: 4px;
    right: 4px;
    font-size: 10px;
}

.horario-card-disciplina {
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.horario-card-professor {
    color: hsl(220 20% 80%);
    font-size: 0.72rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@keyframes conflictPulse {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* ── Disponibilidade Matrix ────────────────────────────── */
.disponibilidade-grid {
    display: grid;
    grid-template-columns: auto repeat(5, 1fr);
    gap: 2px;
}

.disp-header {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    text-align: center;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.disp-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    min-height: 44px;
    cursor: pointer;
    transition: all var(--transition);
}

.disp-cell.available {
    background: hsl(145 63% 15%);
    border-color: hsl(145 63% 30%);
}

.disp-cell.unavailable {
    background: hsl(354 50% 12%);
    border-color: hsl(354 50% 25%);
}

.disp-cell:hover {
    opacity: 0.8;
    transform: scale(0.97);
}

/* ── Page Header ───────────────────────────────────────── */
.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ── Blazor Error UI ────────────────────────────────────── */
#blazor-error-ui {
    background: hsl(354 70% 20%);
    border: 1px solid var(--danger);
    color: var(--text-primary);
    display: none;
    font-size: 0.9rem;
    padding: 16px 24px;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    gap: 12px;
}

#blazor-error-ui.blazor-error-ui-visible { display: flex; }

#blazor-error-ui .dismiss {
    cursor: pointer;
    margin-left: auto;
    font-size: 1.2rem;
    opacity: 0.7;
}

#blazor-error-ui .dismiss:hover { opacity: 1; }

/* ── Animations ─────────────────────────────────────────── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50%       { transform: scale(1.06); }
}

.fade-in-up { animation: fadeInUp 0.4s ease both; }

/* ── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-root); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Utility ────────────────────────────────────────────── */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.chip-turno-manha  { background: hsl(38 90% 20%);   color: hsl(38 90% 70%);   border-radius: 999px; padding: 2px 10px; font-size: 0.72rem; font-weight: 600; }
.chip-turno-tarde  { background: hsl(190 80% 18%);  color: hsl(190 80% 65%);  border-radius: 999px; padding: 2px 10px; font-size: 0.72rem; font-weight: 600; }
.chip-turno-noite  { background: hsl(260 60% 20%);  color: hsl(260 60% 75%);  border-radius: 999px; padding: 2px 10px; font-size: 0.72rem; font-weight: 600; }
.chip-ativo        { background: hsl(145 60% 15%);  color: hsl(145 60% 60%);  border-radius: 999px; padding: 2px 10px; font-size: 0.72rem; font-weight: 600; }
.chip-inativo      { background: hsl(222 20% 18%);  color: var(--text-muted); border-radius: 999px; padding: 2px 10px; font-size: 0.72rem; font-weight: 600; }