/* =============================================================
   main.css — Sistema de Asistencia QR · I.E. Aurora Inés Tejada
   Tipografía: Plus Jakarta Sans + Inter
   ============================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700;800;900&display=swap');

/* ── Variables globales ── */
:root {
    --font-display: 'Plus Jakarta Sans', sans-serif;
    --font-body:    'Inter', sans-serif;

    /* Paleta institucional */
    --primary:       #1d4ed8;
    --primary-light: #3b82f6;
    --indigo:        #6366f1;
    --cyan:          #06b6d4;
    --violet:        #8b5cf6;
    --emerald:       #10b981;
    --sky:           #0ea5e9;

    /* Degradados */
    --grad-primary:  linear-gradient(135deg, #1d4ed8 0%, #6366f1 50%, #8b5cf6 100%);
    --grad-blue:     linear-gradient(135deg, #3b82f6, #6366f1);
    --grad-cyan:     linear-gradient(135deg, #06b6d4, #0ea5e9);
    --grad-violet:   linear-gradient(135deg, #8b5cf6, #6366f1);
    --grad-emerald:  linear-gradient(135deg, #10b981, #0ea5e9);
    --grad-sidebar:  linear-gradient(180deg, #0a0f1e 0%, #0d1535 55%, #090f20 100%);
    --grad-header:   linear-gradient(90deg, #1d4ed8, #6366f1);

    /* Layout */
    --sidebar-w:  240px;
    --topbar-h:   56px;
    --radius:     12px;
    --radius-sm:  8px;
    --radius-xs:  6px;
    --shadow:     0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg:  0 8px 32px rgba(0,0,0,0.12);
    --transition: all 0.2s ease;
}

/* ── Tema claro (default) ── */
[data-theme="light"], :root {
    --bg:           #f1f5ff;
    --surface:      #ffffff;
    --surface-2:    #f8faff;
    --border:       rgba(99,102,241,0.12);
    --border-strong:rgba(99,102,241,0.22);
    --text-primary: #0f172a;
    --text-secondary:#64748b;
    --text-tertiary: #94a3b8;
    --topbar-bg:    rgba(255,255,255,0.92);
    --card-bg:      #ffffff;
    --input-bg:     #f8faff;
    --table-row-alt:#f8faff;
    --shadow-color: rgba(99,102,241,0.08);
}

/* ── Tema oscuro ── */
[data-theme="dark"] {
    --bg:           #060a12;
    --surface:      #0d1424;
    --surface-2:    #0a101e;
    --border:       rgba(var(--color-sec-rgb),0.14);
    --border-strong:rgba(var(--color-sec-rgb),0.25);
    --text-primary: #f1f5f9;
    --text-secondary:#64748b;
    --text-tertiary: #334155;
    --topbar-bg:    rgba(10,15,28,0.92);
    --card-bg:      rgba(13,20,38,0.9);
    --input-bg:     rgba(10,15,28,0.6);
    --table-row-alt:rgba(var(--color-sec-rgb),0.03);
    --shadow-color: rgba(0,0,0,0.3);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.6;
    background: var(--bg);
    color: var(--text-primary);
    transition: background 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Tipografía ── */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.2;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1rem; }
h4 { font-size: 0.875rem; }

p { color: var(--text-secondary); line-height: 1.7; }

.text-gradient {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Layout con sidebar ── */
.layout { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
    width: var(--sidebar-w);
    min-width: var(--sidebar-w);
    background: var(--grad-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0;
    height: 100vh;
    z-index: 200;
    transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
    border-right: 1px solid rgba(var(--color-sec-rgb),0.12);
    overflow: hidden;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 20px 16px 18px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    text-decoration: none;
}

.sidebar-logo-icon {
    width: 38px; height: 38px;
    border-radius: 11px;
    background: var(--grad-blue);
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: white; flex-shrink: 0;
    box-shadow: 0 0 18px rgba(var(--color-sec-rgb),0.5);
}

.sidebar-logo-name {
    font-family: var(--font-display);
    font-size: 12px; font-weight: 800;
    color: white; letter-spacing: -0.01em;
    line-height: 1.2;
}

.sidebar-logo-sub {
    font-family: var(--font-body);
    font-size: 10px; font-weight: 600;
    color: #60a5fa; letter-spacing: 0.05em;
}

.sidebar-nav {
    flex: 1; padding: 12px 8px;
    overflow-y: auto; scrollbar-width: thin;
    scrollbar-color: rgba(var(--color-sec-rgb),0.2) transparent;
}

.nav-section {
    font-family: var(--font-body);
    font-size: 10px; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.1em;
    color: rgba(255,255,255,0.2);
    padding: 10px 10px 4px;
    margin-top: 4px;
}

.nav-section:first-child { margin-top: 0; }

.nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 13px; font-weight: 500;
    color: rgba(255,255,255,0.45);
    text-decoration: none;
    transition: all 0.18s ease;
    margin-bottom: 2px; position: relative;
}

.nav-link i { font-size: 17px; width: 20px; text-align: center; flex-shrink: 0; }

.nav-link:hover { background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.85); }

.nav-link.active {
    background: linear-gradient(90deg, rgba(var(--color-sec-rgb),0.28), rgba(59,130,246,0.14));
    color: #a5b4fc;
    border: 0.5px solid rgba(var(--color-sec-rgb),0.28);
    box-shadow: inset 0 0 16px rgba(var(--color-sec-rgb),0.08);
    font-weight: 600;
}

.nav-link.active::before {
    content: '';
    position: absolute; left: 0; top: 50%;
    transform: translateY(-50%);
    width: 3px; height: 60%;
    background: var(--grad-blue);
    border-radius: 0 3px 3px 0;
    box-shadow: 0 0 8px rgba(var(--color-sec-rgb),0.8);
}

.nav-badge {
    margin-left: auto;
    font-family: var(--font-body);
    font-size: 9px; font-weight: 800;
    padding: 2px 7px; border-radius: 5px;
    background: var(--grad-blue);
    color: white; letter-spacing: 0.04em;
    animation: glow-badge 2s infinite;
}

@keyframes glow-badge {
    0%, 100% { box-shadow: 0 0 5px rgba(var(--color-sec-rgb),0.4); }
    50%       { box-shadow: 0 0 12px rgba(var(--color-sec-rgb),0.9); }
}

.sidebar-footer {
    padding: 10px 8px 16px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.sidebar-user {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 10px; border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.03);
    text-decoration: none;
}

.user-avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: linear-gradient(135deg, #0ea5e9, var(--indigo));
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display);
    font-size: 13px; font-weight: 800; color: white;
    flex-shrink: 0;
    box-shadow: 0 0 12px rgba(14,165,233,0.4);
}

.user-name {
    font-family: var(--font-display);
    font-size: 12px; font-weight: 700; color: #f1f5f9;
}

.user-role {
    font-family: var(--font-body);
    font-size: 10px; color: rgba(255,255,255,0.3);
    letter-spacing: 0.02em;
}

.user-logout {
    margin-left: auto; color: rgba(255,255,255,0.3);
    font-size: 16px; text-decoration: none;
    display: flex; align-items: center;
    transition: color 0.18s;
}

.user-logout:hover { color: #a5b4fc; }

/* ── Área principal ── */
.main-area { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }

/* ── Topbar ── */
.topbar {
    height: var(--topbar-h);
    background: var(--topbar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky; top: 0; z-index: 100;
    transition: background 0.3s ease;
}

.topbar-left { display: flex; align-items: center; gap: 12px; }

.topbar-toggle {
    display: none;
    background: none; border: none;
    font-size: 1.3rem; color: var(--text-secondary);
    cursor: pointer; padding: 6px; border-radius: var(--radius-xs);
    transition: var(--transition);
}

.topbar-toggle:hover { background: var(--border); color: var(--text-primary); }

.topbar-breadcrumb {
    font-family: var(--font-body);
    font-size: 12px; color: var(--text-tertiary);
}

.topbar-title {
    font-family: var(--font-display);
    font-size: 15px; font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.topbar-right { display: flex; align-items: center; gap: 10px; }

.topbar-date {
    font-family: var(--font-body);
    font-size: 12px; font-weight: 500;
    color: var(--text-secondary);
}

.topbar-user-pill {
    display: flex; align-items: center; gap: 8px;
    padding: 4px 12px 4px 4px;
    border-radius: 50px;
    border: 1px solid var(--border);
    background: var(--surface);
    font-family: var(--font-display);
    font-size: 13px; font-weight: 700;
    color: var(--text-primary);
}

.topbar-avatar {
    width: 26px; height: 26px; border-radius: 50%;
    background: var(--grad-cyan);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-display);
    font-size: 11px; font-weight: 800; color: white;
}

/* ── Theme toggle ── */
.theme-toggle {
    width: 44px; height: 24px;
    border-radius: 12px; border: none;
    cursor: pointer; position: relative;
    padding: 0; transition: all 0.3s ease;
    display: flex; align-items: center;
}

[data-theme="light"] .theme-toggle { background: linear-gradient(90deg, #e2e8f0, #cbd5e1); }
[data-theme="dark"]  .theme-toggle { background: var(--grad-blue); box-shadow: 0 0 12px rgba(var(--color-sec-rgb),0.5); }

.theme-toggle-knob {
    width: 18px; height: 18px; border-radius: 50%;
    background: white; position: absolute; top: 3px;
    transition: left 0.3s cubic-bezier(0.4,0,0.2,1);
    display: flex; align-items: center; justify-content: center;
    font-size: 10px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

[data-theme="light"] .theme-toggle-knob { left: 3px; }
[data-theme="dark"]  .theme-toggle-knob { left: 23px; }

/* ── Contenido principal ── */
.main-content { flex: 1; padding: 1.5rem; background: var(--bg); transition: background 0.3s ease; }

/* ── Page header con degradado ── */
.page-header {
    background: var(--grad-primary);
    border-radius: var(--radius);
    padding: 1.5rem 2rem;
    margin-bottom: 1.5rem;
    color: white;
    position: relative; overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute; top: -50%; right: -20px;
    width: 200px; height: 200px; border-radius: 50%;
    background: rgba(255,255,255,0.05);
}

.page-header::after {
    content: '';
    position: absolute; bottom: -40px; left: 30%;
    width: 160px; height: 160px; border-radius: 50%;
    background: rgba(255,255,255,0.04);
}

.page-header h1 {
    font-family: var(--font-display);
    font-size: 1.5rem; font-weight: 800;
    color: white; letter-spacing: -0.02em;
    position: relative; z-index: 1;
}

.page-header p {
    color: rgba(255,255,255,0.75);
    font-family: var(--font-body);
    font-size: 0.875rem; margin-top: 0.25rem;
    position: relative; z-index: 1;
}

/* ── Cards de estadísticas ── */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem; margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    position: relative; overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 3px;
    border-radius: var(--radius) var(--radius) 0 0;
}

.stat-card.card-primary::before  { background: var(--grad-blue); }
.stat-card.card-success::before  { background: var(--grad-cyan); }
.stat-card.card-warning::before  { background: var(--grad-emerald); }
.stat-card.card-secondary::before { background: var(--grad-violet); }
.stat-card.card-purple::before   { background: var(--grad-violet); }

.stat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

.stat-icon {
    width: 48px; height: 48px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem; margin-bottom: 0.875rem;
}

.card-primary  .stat-icon { background: rgba(59,130,246,0.12);  color: var(--primary-light); }
.card-success  .stat-icon { background: rgba(6,182,212,0.12);   color: var(--cyan); }
.card-warning  .stat-icon { background: rgba(16,185,129,0.12);  color: var(--emerald); }
.card-secondary .stat-icon { background: rgba(139,92,246,0.12); color: var(--violet); }
.card-purple   .stat-icon { background: rgba(139,92,246,0.12);  color: var(--violet); }

.stat-card h3 {
    font-family: var(--font-body);
    font-size: 0.75rem; font-weight: 600;
    color: var(--text-secondary); margin-bottom: 0.375rem;
    text-transform: uppercase; letter-spacing: 0.05em;
}

.stat-value {
    font-family: var(--font-display);
    font-size: 2rem; font-weight: 800;
    letter-spacing: -0.04em; line-height: 1;
    margin-bottom: 0.25rem;
    display: inline-block;
    background: var(--grad-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-primary   .stat-value { background: var(--grad-blue);    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.card-success   .stat-value { background: var(--grad-cyan);    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.card-warning   .stat-value { background: var(--grad-emerald); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.card-secondary .stat-value { background: var(--grad-violet);  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.card-purple    .stat-value { background: var(--grad-violet);  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.stat-detail {
    font-family: var(--font-body);
    font-size: 0.75rem; color: var(--text-tertiary);
}

/* ── Panel contenedor ── */
.content-panel {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden; margin-bottom: 1.5rem;
    transition: background 0.3s ease, border-color 0.3s ease;
}

.panel-header {
    background: var(--grad-header);
    color: white; padding: 1rem 1.5rem;
    display: flex; justify-content: space-between; align-items: center;
}

.panel-header h2 {
    font-family: var(--font-display);
    font-size: 0.9rem; font-weight: 800;
    color: white; display: flex; align-items: center; gap: 8px;
    letter-spacing: -0.01em;
}

.panel-body { padding: 1.5rem; }
.panel-body-flush { padding: 0; }

/* ── Tabla ── */
.table-container { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-sm); }
.table-flush { border: none; border-radius: 0; }

table { width: 100%; border-collapse: collapse; min-width: 500px; }

th {
    background: var(--surface-2);
    font-family: var(--font-body);
    font-size: 11px; font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase; letter-spacing: 0.07em;
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

td {
    padding: 0.875rem 1rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
}

tr:last-child td { border-bottom: none; }
tr:nth-child(even) td { background: var(--table-row-alt); }
tr:hover td { background: rgba(var(--color-sec-rgb),0.04); }

/* ── Badges ── */
.badge {
    font-family: var(--font-body);
    font-size: 11px; font-weight: 700;
    padding: 3px 9px; border-radius: 6px;
    letter-spacing: 0.02em;
}

.badge-success { background: linear-gradient(90deg,#d1fae5,#a7f3d0); color: #065f46; }
.badge-warning { background: linear-gradient(90deg,#ede9fe,#ddd6fe); color: #4c1d95; }
.badge-danger  { background: linear-gradient(90deg,#fee2e2,#fecaca); color: #991b1b; }
.badge-info    { background: linear-gradient(90deg,#e0f2fe,#bae6fd); color: #0369a1; }

/* ── Botones ── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 0.6rem 1.25rem;
    border: none; border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.875rem; font-weight: 600;
    cursor: pointer; text-decoration: none;
    transition: all 0.2s ease; letter-spacing: 0.01em;
}

.btn:hover        { filter: brightness(1.08); transform: translateY(-1px); }
.btn:active       { transform: translateY(0); }
.btn:disabled     { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary   { background: var(--grad-primary); color: white; box-shadow: 0 4px 14px rgba(var(--color-sec-rgb),0.3); }
.btn-success   { background: var(--grad-cyan);    color: white; box-shadow: 0 4px 14px rgba(6,182,212,0.3); }
.btn-danger    { background: linear-gradient(135deg,#ef4444,#dc2626); color: white; }
.btn-neutral   { background: var(--surface-2); color: var(--text-primary); border: 1px solid var(--border); }
.btn-sm        { padding: 0.375rem 0.75rem; font-size: 0.8rem; }

/* ── Formularios ── */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem; margin-bottom: 1.25rem;
}

.form-group { display: flex; flex-direction: column; }

.form-group label {
    font-family: var(--font-body);
    font-size: 12px; font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    text-transform: uppercase; letter-spacing: 0.05em;
}

.form-group label.required::after { content: ' *'; color: var(--indigo); }

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.7rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.9rem; color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s, background 0.3s;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(var(--color-sec-rgb),0.12);
    background: var(--surface);
}

.form-group input:disabled,
.form-group select:disabled { opacity: 0.5; cursor: not-allowed; }

.form-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1rem; }

/* ── Mensajes / Alertas ── */
.alerta {
    padding: 0.875rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    display: flex; align-items: flex-start; gap: 8px;
    font-family: var(--font-body); font-size: 0.875rem; font-weight: 500;
}

.alerta-success { background: linear-gradient(90deg,rgba(209,250,229,0.8),rgba(167,243,208,0.5)); color: #065f46; border: 1px solid rgba(16,185,129,0.2); }
.alerta-error   { background: linear-gradient(90deg,rgba(238,242,255,0.8),rgba(221,214,254,0.5)); color: #4c1d95; border: 1px solid rgba(var(--color-sec-rgb),0.2); }
.alerta-info    { background: linear-gradient(90deg,rgba(224,242,254,0.8),rgba(186,230,253,0.5)); color: #0369a1; border: 1px solid rgba(14,165,233,0.2); }
.alerta-warning { background: linear-gradient(90deg,rgba(237,233,254,0.8),rgba(221,214,254,0.5)); color: #4c1d95; border: 1px solid rgba(139,92,246,0.2); }

/* ── Búsqueda ── */
.search-box { display: flex; gap: 0.75rem; margin-bottom: 1.25rem; }
.search-box input { flex: 1; padding: 0.7rem 1rem; background: var(--input-bg); border: 1px solid var(--border); border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.9rem; color: var(--text-primary); outline: none; transition: border-color 0.2s, box-shadow 0.2s; }
.search-box input:focus { border-color: var(--indigo); box-shadow: 0 0 0 3px rgba(var(--color-sec-rgb),0.12); }

/* ── Modales ── */
.modal { display: none; position: fixed; inset: 0; background: rgba(6,10,18,0.7); backdrop-filter: blur(4px); z-index: 1000; justify-content: center; align-items: center; }
.modal.open { display: flex; }
.modal-content { background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius); padding: 2rem; width: 90%; max-width: 480px; box-shadow: var(--shadow-lg); }
.modal-content h3 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 800; color: var(--text-primary); margin-bottom: 1rem; display: flex; align-items: center; gap: 8px; letter-spacing: -0.02em; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.75rem; margin-top: 1.25rem; }
.warning-text { font-family: var(--font-body); font-size: 0.875rem; font-weight: 600; color: var(--violet); margin: 0.75rem 0; }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 2.5rem 1rem; color: var(--text-tertiary); }
.empty-state i { font-size: 2.5rem; display: block; margin-bottom: 0.75rem; opacity: 0.3; }

/* ── Footer ── */
.app-footer {
    font-family: var(--font-body);
    font-size: 0.8rem; font-weight: 500;
    text-align: center; padding: 1rem;
    color: var(--text-tertiary);
    border-top: 1px solid var(--border);
    background: var(--surface);
}

/* ── Utilidades ── */
.campo-condicional { display: none; }
.table-info { font-family: var(--font-body); font-size: 0.8rem; color: var(--text-tertiary); text-align: center; padding: 0.75rem; border-top: 1px solid var(--border); }
.text-muted { color: var(--text-tertiary); font-style: italic; font-size: 0.85rem; }

/* ── Acciones rápidas (index) ── */
.quick-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.action-btn { display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem 1rem; text-decoration: none; color: var(--text-primary); text-align: center; transition: all 0.2s ease; }
.action-btn i { font-size: 1.75rem; margin-bottom: 0.625rem; background: var(--grad-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.action-btn span { font-family: var(--font-body); font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); }
.action-btn:hover { transform: translateY(-4px); box-shadow: 0 8px 24px var(--shadow-color); border-color: var(--border-strong); }

.section-title { font-family: var(--font-display); font-size: 1rem; font-weight: 800; letter-spacing: -0.02em; color: var(--text-primary); padding-left: 0.875rem; border-left: 3px solid transparent; border-image: var(--grad-primary) 1; margin: 1.5rem 0 1rem; }

/* ── Gráficos ── */
.charts-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; margin-bottom: 1.5rem; }
.chart-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; transition: transform 0.2s, background 0.3s, border-color 0.3s; }
.chart-card:hover { transform: translateY(-3px); }
.chart-card h3 { font-family: var(--font-display); font-size: 0.9rem; font-weight: 800; color: var(--text-primary); text-align: center; padding-bottom: 1rem; margin-bottom: 1rem; border-bottom: 1px solid var(--border); letter-spacing: -0.01em; }
.chart-container { position: relative; height: 240px; }

/* ── QR Preview ── */
.qr-preview { text-align: center; padding: 1.25rem; background: var(--surface-2); border-radius: var(--radius); margin: 1.25rem 0; border: 1px dashed var(--border); transition: all 0.3s; }
.qr-preview.qr-generated { border-color: var(--indigo); border-style: solid; background: rgba(var(--color-sec-rgb),0.04); }
#qrcode { display: inline-block; margin-bottom: 0.75rem; padding: 8px; background: white; border-radius: var(--radius-sm); }
.qr-text { font-family: 'Courier New', monospace; font-size: 0.8rem; background: var(--surface); padding: 0.75rem; border-radius: var(--radius-sm); margin: 0.75rem 0; word-break: break-all; border: 1px solid var(--border); color: var(--text-secondary); }
.qr-validation { font-family: var(--font-body); font-size: 0.875rem; padding: 8px 12px; border-radius: var(--radius-sm); margin-top: 8px; }
.validation-success { color: #065f46; background: linear-gradient(90deg,rgba(209,250,229,0.6),rgba(167,243,208,0.3)); }
.validation-error   { color: #4c1d95; background: linear-gradient(90deg,rgba(237,233,254,0.6),rgba(221,214,254,0.3)); }
.qr-preview-modal { text-align: center; margin: 1rem 0; }
.qr-icon { cursor: pointer; font-size: 1.3rem; background: var(--grad-blue); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; transition: transform 0.2s; }
.qr-icon:hover { transform: scale(1.15); }

/* ── Sidebar overlay y toggle móvil ── */
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(6,10,18,0.6); backdrop-filter: blur(2px); z-index: 150; }
.sidebar-overlay.open { display: block; }
.layout .navbar, .layout .mobile-menu { display: none; }

/* ── LOGIN ── */
.login-body { background: var(--grad-sidebar); min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.login-wrapper { display: flex; width: 100%; max-width: 920px; background: var(--surface); border-radius: 20px; overflow: hidden; box-shadow: 0 30px 80px rgba(0,0,0,0.5); border: 1px solid rgba(var(--color-sec-rgb),0.15); }
.login-brand { width: 360px; min-width: 360px; background: var(--grad-primary); padding: 3rem 2rem; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; position: relative; overflow: hidden; }
.login-brand::before { content: ''; position: absolute; top: -60px; right: -60px; width: 220px; height: 220px; border-radius: 50%; background: rgba(var(--color-sec-rgb),0.12); }
.login-brand::after  { content: ''; position: absolute; bottom: -40px; left: -40px; width: 160px; height: 160px; border-radius: 50%; background: rgba(59,130,246,0.08); }
.brand-escudo { width: 80px; height: 80px; border-radius: 20px; background: rgba(255,255,255,0.1); border: 2px solid rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; font-size: 36px; color: white; margin-bottom: 1.5rem; position: relative; z-index: 1; box-shadow: 0 0 30px rgba(var(--color-sec-rgb),0.4); }
.brand-nombre { font-family: var(--font-display); font-size: 1rem; font-weight: 800; color: white; line-height: 1.4; margin-bottom: 0.4rem; position: relative; z-index: 1; letter-spacing: -0.01em; }
.brand-sub { font-family: var(--font-body); font-size: 0.8rem; color: #93c5fd; font-weight: 600; letter-spacing: 0.08em; margin-bottom: 2rem; position: relative; z-index: 1; }
.brand-divider { width: 40px; height: 2px; background: rgba(255,255,255,0.15); margin: 0 auto 1.5rem; border-radius: 1px; }
.brand-sistema { font-family: var(--font-body); font-size: 0.78rem; color: rgba(255,255,255,0.5); line-height: 1.7; position: relative; z-index: 1; }
.brand-sistema strong { font-family: var(--font-display); color: rgba(255,255,255,0.85); display: block; font-size: 0.875rem; margin-bottom: 0.25rem; font-weight: 700; }
.login-form-panel { flex: 1; padding: 3rem 2.5rem; display: flex; flex-direction: column; justify-content: center; background: var(--surface); }
.login-form-panel h2 { font-family: var(--font-display); font-size: 1.75rem; font-weight: 800; color: var(--text-primary); margin-bottom: 0.4rem; letter-spacing: -0.03em; }
.login-form-panel > p { font-family: var(--font-body); font-size: 0.9rem; color: var(--text-secondary); margin-bottom: 2rem; }
.field-group { margin-bottom: 1.25rem; }
.field-group label { display: block; font-family: var(--font-body); font-size: 11px; font-weight: 700; color: var(--text-secondary); margin-bottom: 0.4rem; text-transform: uppercase; letter-spacing: 0.07em; }
.field-wrap { position: relative; }
.field-wrap i.field-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-tertiary); font-size: 15px; pointer-events: none; transition: color 0.2s; }
.field-wrap input { width: 100%; padding: 0.8rem 2.75rem 0.8rem 2.5rem; background: var(--input-bg); border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.95rem; color: var(--text-primary); transition: border-color 0.2s, box-shadow 0.2s, background 0.3s; outline: none; }
.field-wrap input:focus { border-color: var(--indigo); box-shadow: 0 0 0 3px rgba(var(--color-sec-rgb),0.12); background: var(--surface); }
.field-wrap input:disabled { opacity: 0.5; cursor: not-allowed; }
.toggle-pass { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; color: var(--text-tertiary); font-size: 15px; transition: color 0.2s; padding: 4px; }
.toggle-pass:hover { color: var(--indigo); }
.btn-login { width: 100%; padding: 0.875rem; background: var(--grad-primary); color: white; border: none; border-radius: var(--radius-sm); font-family: var(--font-display); font-size: 0.95rem; font-weight: 800; cursor: pointer; transition: all 0.2s ease; margin-top: 0.5rem; display: flex; align-items: center; justify-content: center; gap: 8px; box-shadow: 0 4px 18px rgba(var(--color-sec-rgb),0.35); letter-spacing: -0.01em; }
.btn-login:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(var(--color-sec-rgb),0.45); }
.btn-login:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.login-msg { padding: 0.75rem 1rem; border-radius: var(--radius-sm); margin-bottom: 1.25rem; font-family: var(--font-body); font-size: 0.875rem; font-weight: 500; display: flex; align-items: flex-start; gap: 8px; }
.login-msg-error   { background: linear-gradient(90deg,rgba(237,233,254,0.8),rgba(221,214,254,0.5)); color: #4c1d95; border: 1px solid rgba(139,92,246,0.2); }
.login-msg-bloqueo { background: linear-gradient(90deg,rgba(224,242,254,0.8),rgba(186,230,253,0.5)); color: #0369a1; border: 1px solid rgba(14,165,233,0.2); }
.intentos-aviso { font-family: var(--font-body); font-size: 0.8rem; color: var(--indigo); text-align: center; margin-top: 0.5rem; }
.login-footer { font-family: var(--font-body); text-align: center; font-size: 0.78rem; color: var(--text-tertiary); margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }

/* ── SCANNER topbar ── */
.scanner-topbar { background: var(--grad-primary); padding: 0.75rem 1.25rem; display: flex; align-items: center; justify-content: space-between; color: white; position: sticky; top: 0; z-index: 50; margin: -20px -20px 20px; }
.scanner-back { color: rgba(255,255,255,0.7); font-size: 1.1rem; text-decoration: none; width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; border-radius: 8px; transition: background 0.2s; }
.scanner-back:hover { background: rgba(255,255,255,0.12); color: white; }
.scanner-topbar-brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-size: 0.9rem; font-weight: 800; letter-spacing: -0.01em; }
.scanner-date { font-family: var(--font-body); font-size: 0.8rem; color: rgba(255,255,255,0.6); }

/* ── Topbar móvil ── */

/* ── Sidebar: cabecera con botón cerrar ── */
.sidebar-logo-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-right: 8px;
}

.sidebar-logo { border-bottom: none; flex: 1; }

.sidebar-close {
    display: none;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.6);
    width: 36px; height: 36px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s;
    margin-right: 8px;
}

.sidebar-close:hover {
    background: rgba(255,255,255,0.12);
    color: white;
}

/* ── Botón logout grande para móvil ── */
.sidebar-logout-btn {
    display: none;
    width: 100%;
    margin-top: 10px;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(var(--color-sec-rgb),0.2), rgba(59,130,246,0.1));
    border: 1px solid rgba(var(--color-sec-rgb),0.25);
    border-radius: 10px;
    color: #a5b4fc;
    text-decoration: none;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.sidebar-logout-btn:hover {
    background: linear-gradient(135deg, rgba(var(--color-sec-rgb),0.35), rgba(59,130,246,0.2));
    color: white;
}

@media (max-width: 768px) {

    /* ── Sidebar móvil ── */
    .sidebar {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        height: 100% !important;
        height: 100dvh !important;
        width: min(85vw, 300px) !important;
        min-width: 260px !important;
        transform: translateX(-110%) !important;
        z-index: 9999 !important;
        transition: transform 0.3s cubic-bezier(0.4,0,0.2,1) !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        display: flex !important;
        flex-direction: column !important;
        -webkit-overflow-scrolling: touch;
    }

    .sidebar.open {
        transform: translateX(0) !important;
        box-shadow: 8px 0 40px rgba(0,0,0,0.6) !important;
    }

    /* Asegurar que el footer del sidebar sea visible */
    .sidebar-footer {
        margin-top: auto !important;
        flex-shrink: 0 !important;
        padding-bottom: max(16px, env(safe-area-inset-bottom)) !important;
    }

    /* Nav ocupa el espacio disponible */
    .sidebar-nav {
        flex: 1 !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch;
    }

    /* ── Overlay ── */
    .sidebar-overlay {
        display: none !important;
        position: fixed !important;
        top: 0 !important; left: 0 !important;
        width: 100% !important; height: 100% !important;
        background: rgba(6,10,18,0.7) !important;
        backdrop-filter: blur(3px) !important;
        -webkit-backdrop-filter: blur(3px) !important;
        z-index: 9998 !important;
        cursor: pointer !important;
    }

    .sidebar-overlay.open {
        display: block !important;
    }

    /* ── Área principal ── */
    .main-area {
        margin-left: 0 !important;
        width: 100% !important;
    }

    /* ── Topbar ── */
    .topbar {
        position: sticky !important;
        top: 0 !important;
        z-index: 500 !important;
        padding: 0 1rem !important;
        height: 52px !important;
    }


    /* ── Mostrar elementos solo en móvil ── */
    .sidebar-close {
        display: flex !important;
    }

    .sidebar-logout-btn {
        display: flex !important;
    }

    /* ── Sidebar logo wrap ajuste ── */
    .sidebar-logo-wrap {
        padding-right: 6px;
    }

    .topbar-toggle {
        display: flex !important;
        align-items: center !important;
        padding: 8px !important;
        min-width: 44px !important;
        min-height: 44px !important;
    }

    .topbar-user-pill { display: none !important; }
    .topbar-breadcrumb { display: none !important; }
    .topbar-date { font-size: 11px; }

    /* ── Contenido ── */
    .main-content { padding: 0.875rem; }
    .charts-grid  { grid-template-columns: 1fr; }
    .form-grid    { grid-template-columns: 1fr; }
    .form-actions { flex-direction: column; }
    .search-box   { flex-direction: column; }
    .cards-grid   { grid-template-columns: 1fr 1fr; }
    .quick-actions { grid-template-columns: 1fr 1fr; }
    .panel-header { flex-direction: column; gap: 0.5rem; align-items: flex-start; }
    .table-container { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .page-header { padding: 1rem 1.25rem; }
    .page-header h1 { font-size: 1.2rem; }

    /* ── Login ── */
    .login-brand { display: none; }
    .login-wrapper { max-width: 100%; border-radius: 16px; margin: 0; }
    .login-form-panel { padding: 2rem 1.5rem; }

    /* ── Modales ── */
    .modal-content { width: 95%; padding: 1.5rem; }

    /* ── Botones — solo en forms, no en todas partes ── */
    .form-actions .btn { width: auto; }
    .modal-actions .btn { width: auto; }
}

@media (max-width: 480px) {
    .cards-grid    { grid-template-columns: 1fr; }
    .quick-actions { grid-template-columns: 1fr 1fr; }
    .topbar-title  { font-size: 13px; }
    .stat-value    { font-size: 1.6rem; }
    .page-header h1 { font-size: 1.1rem; }
    .sidebar { width: 90vw !important; }
}

@media (min-width: 769px) {
    .sidebar {
        transform: none !important;
        position: fixed !important;
        height: 100vh !important;
    }
    .topbar-toggle { display: none !important; }
    .sidebar-overlay { display: none !important; }
}

/* ── Modal QR — visualización de código ── */
.qr-student-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: linear-gradient(135deg, rgba(var(--color-sec-rgb),0.08), rgba(59,130,246,0.04));
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
}

.qr-student-avatar {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--grad-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 4px 14px rgba(var(--color-sec-rgb),0.35);
}

.qr-student-data { flex: 1; min-width: 0; }

.qr-student-name {
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.qr-student-detail {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    font-family: var(--font-body);
    font-size: 12px;
    color: var(--text-secondary);
}

.qr-tag {
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--indigo);
    background: rgba(var(--color-sec-rgb),0.12);
    border-radius: 4px;
    padding: 2px 6px;
}

.qr-image-box {
    text-align: center;
    margin-bottom: 14px;
}

.qr-image-inner {
    display: inline-block;
    background: white;
    padding: 16px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    border: 1px solid var(--border);
}

.qr-code-box {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    margin-bottom: 14px;
}

.qr-code-title {
    display: block;
    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    margin-bottom: 5px;
}

.qr-code-text {
    font-family: 'Courier New', monospace;
    font-size: 11px;
    color: var(--text-secondary);
    word-break: break-all;
    line-height: 1.6;
}