/* =====================================================================
   SISTEMA DE DISEÑO GLOBAL CIRAP (PREMIUM GLASSMORPHISM & DARK THEME)
   ===================================================================== */

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

:root {
    /* Paleta de Colores HSL Tailored: Esmeralda & Menta Tecnológica */
    --bg-main: hsl(160, 25%, 5%);
    --bg-card: hsla(160, 22%, 9%, 0.7);
    --bg-navbar: hsla(160, 25%, 4%, 0.85);
    
    --accent-primary: hsl(158, 75%, 48%);      /* Verde Esmeralda Neón */
    --accent-secondary: hsl(172, 78%, 46%);    /* Menta / Teal Eléctrico */
    --accent-success: hsl(142, 72%, 45%);      /* Verde Neón Esmeralda */
    --accent-warning: hsl(38, 92%, 50%);       /* Ámbar */
    --accent-danger: hsl(350, 89%, 60%);       /* Carmín */
    
    --text-primary: hsl(150, 25%, 96%);
    --text-secondary: hsl(160, 15%, 75%);
    --text-muted: hsl(160, 10%, 50%);
    
    /* Efectos Glassmorphic */
    --glass-bg: rgba(14, 26, 21, 0.6);
    --glass-border: rgba(30, 189, 131, 0.15);
    --glass-highlight: rgba(255, 255, 255, 0.03);
    --glass-glow-primary: rgba(30, 189, 131, 0.2);
    --glass-glow-secondary: rgba(26, 209, 181, 0.2);
    
    /* Sombras y Transiciones */
    --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-lg: 16px;
    --border-radius-md: 10px;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* =====================================================================
   ESTILOS BASE
   ===================================================================== */

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

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    position: relative;
}

/* Fondos Ambientales Degradados */
body::before, body::after {
    content: '';
    position: absolute;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    z-index: -1;
    filter: blur(120px);
    opacity: 0.45;
    pointer-events: none;
}

body::before {
    background: var(--accent-primary);
    top: 5%;
    left: 10%;
    animation: pulseGlow 10s infinite alternate;
}

body::after {
    background: var(--accent-secondary);
    bottom: 10%;
    right: 10%;
    animation: pulseGlow 12s infinite alternate-reverse;
}

@keyframes pulseGlow {
    0% { transform: scale(1) translate(0, 0); opacity: 0.35; }
    100% { transform: scale(1.2) translate(50px, 30px); opacity: 0.5; }
}

/* =====================================================================
   TIPOGRAFÍA Y ENLACES
   ===================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

a {
    color: var(--accent-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--accent-primary);
}

/* =====================================================================
   ALERTAS / TOASTS FLOTANTES
   ===================================================================== */

.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
    width: calc(100% - 48px);
}

.alert-toast {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-radius: var(--border-radius-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-main);
    color: var(--text-primary);
    transform: translateY(-20px);
    opacity: 0;
    animation: slideIn 0.35s forwards cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.alert-toast::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
}

.alert-toast.danger::before { background-color: var(--accent-danger); }
.alert-toast.success::before { background-color: var(--accent-success); }
.alert-toast.warning::before { background-color: var(--accent-warning); }
.alert-toast.info::before { background-color: var(--accent-secondary); }

.alert-toast .message {
    font-size: 14px;
    line-height: 1.5;
    flex-grow: 1;
    margin-right: 12px;
}

.alert-toast .close-btn {
    cursor: pointer;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 18px;
    display: flex;
    align-items: center;
    transition: var(--transition-fast);
}

.alert-toast .close-btn:hover {
    color: var(--text-primary);
}

@keyframes slideIn {
    to { transform: translateY(0); opacity: 1; }
}

/* =====================================================================
   NAVBAR COMPONENTE (GLASS)
   ===================================================================== */

.navbar {
    background: var(--bg-navbar);
    border-bottom: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    padding: 12px 28px;
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 24px;
    padding: 4px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.navbar-brand span {
    color: var(--accent-primary);
    -webkit-text-fill-color: initial;
}

.nav-links {
    display: flex;
    gap: 6px;
    align-items: center;
}

.nav-item {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
    text-decoration: none;
}

.nav-item:hover, .nav-item.active {
    color: var(--text-primary);
    background: rgba(30, 189, 131, 0.1);
}

.user-badge {
    background: rgba(30, 189, 131, 0.08);
    border: 1px solid var(--glass-border);
    padding: 6px 14px;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: var(--text-primary);
}

.nav-user-bar {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-badge .role-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.user-badge.admin .role-indicator { background-color: var(--accent-primary); }
.user-badge.docente .role-indicator { background-color: var(--accent-secondary); }
.user-badge.visitante .role-indicator { background-color: var(--accent-success); }

.logout-btn {
    background: rgba(239, 68, 68, 0.1);
    color: var(--accent-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
    cursor: pointer;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #fff;
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.25);
}

/* =====================================================================
   FORMULARIOS Y PÁGINA DE LOGIN
   ===================================================================== */

.auth-container {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-top: 2px solid var(--accent-primary);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    width: auto;
    max-width: 460px;
    box-shadow: var(--shadow-main);
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeInUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.auth-header {
    text-align: center;
}

.auth-header h2 {
    font-size: 28px;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-header p {
    color: var(--text-muted);
    font-size: 14px;
}

/* Inputs de Formularios */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

.input-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.form-control {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 14px 16px;
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--text-primary);
    transition: var(--transition-fast);
    outline: none;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.form-control:focus {
    border-color: var(--accent-secondary);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 15px var(--glass-glow-secondary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 15px;
    padding: 14px;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(124, 58, 237, 0.4);
    filter: brightness(1.1);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Inputs de Código MFA (6 dígitos) */
.mfa-digits-container {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    margin: 16px 0;
}

.mfa-digit {
    width: 50px;
    height: 60px;
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    border-radius: var(--border-radius-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    transition: var(--transition-fast);
    outline: none;
}

.mfa-digit:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px var(--glass-glow-primary);
    background: rgba(255, 255, 255, 0.06);
}

.resend-container {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
}

.resend-btn {
    background: none;
    border: none;
    color: var(--accent-secondary);
    font-weight: 600;
    cursor: pointer;
    padding: 0 4px;
    transition: var(--transition-fast);
}

.resend-btn:hover:not(:disabled) {
    color: var(--accent-primary);
    text-decoration: underline;
}

.resend-btn:disabled {
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Alerta de Simulación de MFA */
.simulation-banner {
    background: rgba(30, 41, 59, 0.7);
    border: 1px dashed var(--accent-warning);
    border-radius: var(--border-radius-md);
    padding: 16px;
    margin: 8px 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.simulation-banner strong {
    color: var(--accent-warning);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.simulation-banner p {
    font-size: 12px;
    color: var(--text-secondary);
}

.simulation-banner .code-box {
    align-self: center;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: 4px;
    color: #fff;
    background: rgba(255, 193, 7, 0.1);
    padding: 6px 16px;
    border-radius: 6px;
    border: 1px solid rgba(255, 193, 7, 0.2);
    margin-top: 6px;
}

/* =====================================================================
   DASHBOARD MAQUETACIÓN
   ===================================================================== */

.dashboard-wrapper {
    flex-grow: 1;
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    width: auto;
    max-width: 1400px;
    margin: 0 auto;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 24px;
}

.dashboard-header .welcome-info h1 {
    font-size: 32px;
    margin-bottom: 6px;
}

.dashboard-header .welcome-info p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Tarjetas Informativas / Grillas */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-main);
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
    opacity: 0.15;
    pointer-events: none;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.15);
}

.stat-card:hover::after {
    transform: scale(1.3);
}

.stat-card .card-label {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

.stat-card .card-value {
    font-size: 36px;
    font-weight: 800;
    font-family: var(--font-heading);
}

.stat-card .card-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Contenido Principal y Tablas */
.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
}

@media (max-width: 992px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
}

.table-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-main);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow: hidden;
}

.card-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title-bar h2 {
    font-size: 20px;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.custom-table {
    width: auto;
    border-collapse: collapse;
    text-align: left;
}

.custom-table th {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 12px 16px;
    border-bottom: 1px solid var(--glass-border);
}

.custom-table td {
    padding: 16px;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.custom-table tr:hover td {
    background: rgba(255, 255, 255, 0.01);
    color: var(--text-primary);
}

/* Badges de Estados y Roles */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.badge.admin { background: rgba(139, 92, 246, 0.15); color: var(--accent-primary); border: 1px solid rgba(139, 92, 246, 0.3); }
.badge.docente { background: rgba(59, 130, 246, 0.15); color: var(--accent-secondary); border: 1px solid rgba(59, 130, 246, 0.3); }
.badge.visitante { background: rgba(16, 185, 129, 0.15); color: var(--accent-success); border: 1px solid rgba(16, 185, 129, 0.3); }

.badge.active { background: rgba(16, 185, 129, 0.1); color: var(--accent-success); border: 1px solid rgba(16, 185, 129, 0.2); }
.badge.inactive { background: rgba(239, 68, 68, 0.1); color: var(--accent-danger); border: 1px solid rgba(239, 68, 68, 0.2); }

/* Formulario lateral y botones del Panel Admin */
.btn-action {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--border-radius-md);
    transition: var(--transition-fast);
}

.btn-action:hover {
    background: rgba(255, 255, 255, 0.08);
}

.btn-action.edit {
    color: var(--accent-secondary);
    border-color: rgba(59, 130, 246, 0.2);
}

.btn-action.edit:hover {
    background: rgba(59, 130, 246, 0.1);
}

.btn-action.delete {
    color: var(--accent-danger);
    border-color: rgba(239, 68, 68, 0.2);
}

.btn-action.delete:hover {
    background: rgba(239, 68, 68, 0.1);
}

/* Modales e Interfaz de Registro Lateral */
.side-form-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-main);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: fit-content;
}

.form-select {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: 14px 16px;
    color: var(--text-primary);
    outline: none;
    font-family: var(--font-body);
    font-size: 14px;
    cursor: pointer;
}

.form-select option {
    background-color: var(--bg-main);
    color: var(--text-primary);
}

/* Switch / Checkbox Premium */
.switch-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.switch-label {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.switch-label span {
    font-size: 13px;
    font-weight: 600;
}

.switch-label small {
    font-size: 11px;
    color: var(--text-muted);
}

.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.switch input { 
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.1);
    transition: .4s;
    border-radius: 34px;
    border: 1px solid var(--glass-border);
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--accent-secondary);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--accent-secondary);
}

input:checked + .slider:before {
    transform: translateX(24px);
}

/* =====================================================================
   ESTILOS DE LOS DASHBOARDS SECUNDARIOS (MOCKS ELEGANTES)
   ===================================================================== */

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.subject-card, .student-card { min-width: 0; word-break: break-word;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-main);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: var(--transition-normal);
}

.subject-card:hover, .student-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255,255,255,0.12);
}

.card-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-header-flex h3 {
    font-size: 18px;
    line-height: 1.3;
}

.subject-details, .student-details {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    border-top: 1px solid rgba(255,255,255,0.03);
    padding-top: 12px;
}

.subject-details div, .student-details div {
    display: flex;
    justify-content: space-between;
}

.subject-details strong, .student-details strong {
    color: var(--text-primary);
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Estilo para los Inputs no Editables / ReadOnly del Perfil */
.profile-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.profile-row span {
    font-size: 14px;
    color: var(--text-secondary);
}

.profile-row strong {
    font-size: 14px;
    color: var(--text-primary);
}


/* Fix for white backgrounds in dynamically created options */
select option, select.form-control option {
    background-color: var(--bg-main) !important;
    color: var(--text-primary) !important;
}

/* Navbar Dropdowns */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropbtn { gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: var(--border-radius-md);
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    font-family: inherit;
}

.nav-dropdown.active .nav-dropbtn { gap: 8px;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-dropdown-content {
    display: none;
    position: absolute;
    background-color: var(--bg-main); backdrop-filter: blur(16px);
    min-width: 220px;
    box-shadow: 0px 8px 24px rgba(0,0,0,0.5);
    z-index: 1000;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--glass-border);
    top: 100%;
    left: 0;
    margin-top: 5px;
    padding: 8px 0;
}

.nav-dropdown.active .nav-dropdown-content {
    display: flex;
    flex-direction: column;
}

.nav-dropdown-content .nav-item { gap: 12px;
    color: var(--text-primary);
    padding: 10px 20px;
    text-decoration: none;
    display: flex;
    align-items: center;
    border-radius: 0;
    margin: 0;
}

.nav-dropdown-content .nav-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Right align for last dropdown to prevent scrollbars */
.dropdown-right-align {
    right: 0 !important;
    left: auto !important;
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
    color: #ffffff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 15px;
    padding: 14px;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.25);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(239, 68, 68, 0.4);
    filter: brightness(1.1);
}

.btn-danger:active {
    transform: translateY(0);
}

/* Botón Toggle por defecto en Desktop */
.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 8px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* =====================================================================
   RESPONSIVIDAD Y CONSULTAS DE MEDIOS (MOBILE & TABLET)
   ===================================================================== */

@media (max-width: 992px) {
    .nav-toggle {
        display: flex;
    }

    .navbar {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        padding: 12px 16px;
        gap: 0;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 8px;
        margin-top: 16px;
    }

    .nav-links.show {
        display: flex;
    }

    .nav-dropdown {
        width: 100%;
    }

    .nav-dropbtn {
        width: 100%;
        justify-content: space-between;
        background: rgba(255, 255, 255, 0.02);
        border: 1px solid var(--glass-border);
    }

    .nav-dropdown-content {
        position: static;
        width: 100%;
        box-shadow: none;
        backdrop-filter: none;
        border-left: 2px solid var(--accent-primary);
        border-right: none;
        border-top: none;
        border-bottom: none;
        border-radius: 0;
        padding-left: 10px;
    }

    .nav-user-controls {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        border-top: 1px solid var(--glass-border);
        padding-top: 16px;
        gap: 12px;
    }

    .nav-user-controls .user-badge {
        justify-content: center;
    }

    .logout-btn {
        text-align: center;
        width: 100%;
    }

    /* Grillas y Layouts */
    .dashboard-wrapper {
        padding: 20px 16px;
        width: 100% !important;
        max-width: 100vw !important;
        box-sizing: border-box !important;
        overflow-x: hidden !important;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    /* Tablas adaptables */
    .table-card {
        padding: 16px;
    }

    .custom-table th, .custom-table td {
        padding: 12px 8px;
        font-size: 13px;
    }

    /* Reducción de fuentes para evitar truncados */
    .dashboard-header h1, h1, .dashboard-header h1 span {
        font-size: 20px !important;
    }

    .dashboard-header p {
        font-size: 11px !important;
    }

    /* Tabs scrollables horizontalmente */
    .evaluation-tabs-container, .tabs-container {
        display: flex !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
        gap: 8px !important;
        padding-bottom: 8px !important;
        width: 100% !important;
        -webkit-overflow-scrolling: touch;
        border-bottom: 1px solid var(--glass-border);
    }

    .eval-tab-button, .tab-button {
        flex-shrink: 0 !important;
        padding: 8px 16px !important;
        font-size: 12px !important;
    }

    /* Transformación de tabla de calificaciones a Tarjetas Móviles */
    .grades-table thead {
        display: none !important;
    }

    .grades-table, .grades-table tbody, .grades-table tr, .grades-table td {
        display: block !important;
        width: 100% !important;
    }

    .grades-table tr {
        background: var(--bg-card) !important;
        border: 1px solid var(--glass-border) !important;
        border-radius: var(--border-radius-lg) !important;
        padding: 16px !important;
        margin-bottom: 20px !important;
        box-shadow: var(--shadow-main) !important;
        backdrop-filter: blur(20px) !important;
    }

    .grades-table td {
        border: none !important;
        background: transparent !important;
        padding: 10px 0 !important;
        display: block !important;
        width: 100% !important;
        text-align: left !important;
    }

    /* Cédula del estudiante */
    .grades-table td:first-child {
        display: inline-block !important;
        width: auto !important;
        font-family: monospace !important;
        font-size: 11px !important;
        color: var(--text-muted) !important;
        border-bottom: none !important;
        padding: 0 !important;
    }

    /* Nombre completo - Directamente abajo de la cédula */
    .grades-table td:nth-child(2) {
        display: block !important;
        width: 100% !important;
        font-weight: 600 !important;
        font-size: 14px !important;
        color: #fff !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
        padding-top: 2px !important;
        padding-bottom: 10px !important;
        margin-bottom: 12px !important;
        word-break: break-word !important;
    }

    /* Inputs y selects dentro de las tarjetas */
    .grades-table td .score-input, 
    .grades-table td .daily-select-input {
        width: 100% !important;
        max-width: 100% !important;
        text-align: left !important;
        padding: 10px 12px !important;
    }

    .grades-table td .observations-input {
        width: 100% !important;
        max-width: 100% !important;
        text-align: left !important;
        padding: 10px 12px !important;
    }

    .grades-table td .input-group-special {
        width: 100% !important;
        justify-content: flex-start !important;
    }

    /* Generación automática de etiquetas en móvil */
    .grades-table td::before {
        content: attr(data-label) !important;
        display: block !important;
        font-weight: 600 !important;
        font-size: 11px !important;
        color: var(--text-muted) !important;
        text-transform: uppercase !important;
        letter-spacing: 0.05em !important;
        margin-bottom: 6px !important;
    }

    /* No agregar etiquetas para Cédula y Nombre Completo */
    .grades-table td:first-child::before,
    .grades-table td:nth-child(2)::before {
        content: none !important;
    }
}

/* =====================================================================
   BANNER DE INSTALACIÓN PWA PREMIUM (GLASSMORPHIC & ANIMADO)
   ===================================================================== */
.pwa-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    z-index: 9999;
    width: calc(100% - 32px);
    max-width: 480px;
    background: hsla(223, 47%, 11%, 0.9);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(24px);
    border-radius: var(--border-radius-lg);
    padding: 16px 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

.pwa-banner.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.pwa-banner-content {
    display: flex;
    align-items: center;
    gap: 14px;
}

.pwa-banner-content .pwa-icon {
    font-size: 28px;
    color: var(--accent-primary);
    background: rgba(139, 92, 246, 0.1);
    padding: 8px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pwa-banner-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.pwa-banner-text strong {
    font-size: 13px;
    color: #fff;
    font-family: var(--font-heading);
}

.pwa-banner-text span {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.3;
}

.pwa-banner-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pwa-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: var(--transition-fast);
    padding: 4px;
}

.pwa-close-btn:hover {
    color: #fff;
}

/* =====================================================================
   SOBREESCRITURAS RESPONSIVAS GLOBALES (MÓVILES Y TABLETS)
   ===================================================================== */
@media (max-width: 768px) {
    /* Grilla de Filtros a 1 sola columna en móvil */
    .filter-grid {
        grid-template-columns: 1fr !important;
    }
    .filter-grid > * {
        grid-column: span 1 !important;
    }

    /* Modales Globales (Resuelve anchos fijos de listados y configuraciones) */
    .modal-content, 
    [style*="width: 900px"], 
    [style*="width:900px"], 
    [style*="width: 700px"], 
    [style*="width:700px"] {
        width: 95% !important;
        max-width: 100vw !important;
        margin: 10px auto !important;
        padding: 16px !important;
    }

    /* Formularios Laterales y Contenedores */
    .side-form-card, .homework-card {
        width: 100% !important;
        margin-top: 16px !important;
    }

    /* Elementos flex que deben envolver en celular */
    .card-title-bar, .info-header-badge, .form-row {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 10px !important;
    }

    /* Botones de acción y guardado a pantalla completa en celular */
    .btn-primary, .btn-danger {
        width: 100% !important;
        justify-content: center !important;
    }

    /* Scroll táctil suave en todas las tablas */
    .table-responsive {
        width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        border: 1px solid var(--glass-border);
        border-radius: var(--border-radius-md);
    }

    /* Estilo para los metadatos apilados verticalmente en celulares */
    .header-meta-info {
        display: flex !important;
        flex-direction: column !important;
        gap: 6px !important;
        align-items: flex-start !important;
    }

    .header-meta-info .meta-separator {
        display: none !important;
    }

    .header-meta-info .meta-item {
        display: block !important;
        width: 100% !important;
        white-space: normal !important;
    }

    /* Prevención global de desbordamiento de textos, títulos y párrafos */
    p, h1, h2, h3, h4, h5, h6, .welcome-info, .dashboard-header, .stat-card, .table-card, .homework-card, .side-form-card {
        max-width: 100% !important;
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
    }

    /* Corrección estricta para tarjetas de tablas */
    .table-card {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
        overflow: hidden !important;
    }

    /* Forzar a que cualquier tabla ocupe su contenedor responsive */
    .table-responsive table:not(.grades-table):not(.attendance-table):not(.schedule-grid-view), 
    .table-responsive .custom-table:not(.grades-table):not(.attendance-table):not(.schedule-grid-view), 
    .table-responsive .schedule-grid-view:not(.schedule-grid-view),
    .table-responsive .data-table {
        width: 100% !important;
        min-width: 700px !important; /* Mínimo ancho para poder hacer scroll horizontal ordenado */
    }

    /* Tabs scrollables horizontalmente globales (Evita cortes en Horarios, Reportes, Adecuaciones, etc.) */
    .evaluation-tabs-container, 
    .tabs-container, 
    .view-selector-tabs, 
    .nav-tabs {
        display: flex !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
        gap: 8px !important;
        padding-bottom: 8px !important;
        width: 100% !important;
        max-width: 100% !important;
        -webkit-overflow-scrolling: touch;
        border-bottom: 1px solid var(--glass-border);
    }

    .eval-tab-button, 
    .tab-button, 
    .view-tab-btn, 
    .nav-tab-btn {
        flex-shrink: 0 !important;
        padding: 8px 16px !important;
        font-size: 12px !important;
    }

    /* Forzar a que los contenedores con grid de 2 columnas inline pasen a 1 sola columna en celular */
    div[style*="grid-template-columns: 1fr 1fr"], 
    div[style*="grid-template-columns:1fr 1fr"],
    div[style*="grid-template-columns: 2fr 1fr"],
    div[style*="grid-template-columns:2fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    /* Anulación global de anchos y anchos mínimos fijos inline para evitar desbordamientos en móviles */
    [style*="width:"], [style*="width :"] {
        max-width: 100% !important;
    }

    [style*="min-width:"], [style*="min-width :"] {
        min-width: 0 !important;
        max-width: 100% !important;
    }

    /* Exceptuar tablas del responsive min-width para que mantengan su barra de scroll interna */
    .table-responsive table:not(.grades-table):not(.attendance-table):not(.schedule-grid-view),
    .table-responsive .custom-table:not(.grades-table):not(.attendance-table):not(.schedule-grid-view),
    .table-responsive .schedule-grid-view:not(.schedule-grid-view),
    .table-responsive .data-table {
        min-width: 700px !important;
        max-width: none !important;
    }
    
    /* Configuración específica para la tabla de asistencia en móvil */
    .table-responsive table.attendance-table {
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
        table-layout: auto !important;
    }

    /* Configuración específica para la cuadrícula de horarios en móvil */
    .table-responsive table.schedule-grid-view {
        width: 100% !important;
        min-width: 100% !important;
        max-width: 100% !important;
        table-layout: auto !important;
    }
}

/* Utilidades responsivas de visualización */
.mobile-only {
    display: none !important;
}
.desktop-only {
    display: flex !important;
}

.reports-container {
    width: 100% !important;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 32px;
    box-sizing: border-box;
}

.form-select-premium {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}

@media (max-width: 992px) {
    .mobile-only {
        display: block !important;
    }
    .desktop-only {
        display: none !important;
    }
    .reports-container {
        padding: 20px 16px !important;
    }
}





/* =====================================================================
   BARRA DE NAVEGACIÓN INFERIOR MÓVIL (MOBILE BOTTOM NAV)
   ===================================================================== */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: #0f172a; /* Slate 900 background matching the dark premium theme */
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    justify-content: space-around;
    align-items: center;
    z-index: 9999;
    padding-bottom: env(safe-area-inset-bottom);
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #94a3b8; /* Slate 400 */
    text-decoration: none;
    font-size: 11px;
    font-weight: 500;
    gap: 4px;
    flex: 1;
    height: 100%;
    transition: all 0.2s ease;
}

.mobile-nav-item .material-icons-round {
    font-size: 22px;
}

.mobile-nav-item.active {
    color: #3b82f6; /* Blue 500 */
    font-weight: 600;
}

.mobile-nav-item:hover {
    color: #fff;
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex !important;
    }
    body {
        padding-bottom: 74px !important;
    }
    /* Hide top nav links and toggle menu on mobile to clean up space */
    .navbar .nav-links,
    .navbar .nav-toggle {
        display: none !important;
    }
}

/* =====================================================================
   VISTA RESPONSIVA DE REGISTRO DE ASISTENCIA (COMBOBOX MÓVIL)
   ===================================================================== */
.status-select-container-mobile {
    display: none;
}

.student-actions-group {
    display: inline-flex;
    gap: 4px;
    vertical-align: middle;
    margin-left: 8px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    /* Ocultar la columna entera de radio buttons (columna 3) */
    .attendance-table th:nth-child(3),
    .attendance-table td:nth-child(3) {
        display: none !important;
    }
    
    /* Mostrar el combobox responsivo debajo de bitácora en la columna 2 */
    .status-select-container-mobile {
        display: block !important;
        margin-top: 10px;
        width: 100%;
        max-width: 250px; /* Evita que crezca desmedidamente en móviles medianos */
    }

    /* Alinear y envolver botones de acción del estudiante debajo del nombre */
    .student-actions-group {
        display: flex !important;
        margin-left: 0 !important;
        margin-top: 6px;
    }

    /* Forzar a que todos los inputs del formulario ocupen el 100% de su contenedor y no desborden */
    .form-control, .form-select, select.form-control, textarea.form-control {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }

    /* Reducir padding de las tarjetas en móvil para dar más espacio horizontal */
    .side-form-card, .card, .table-card {
        padding: 16px !important;
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box !important;
    }
}

/* =====================================================================
   CLASES COMPLEMENTARIAS DE CUADRÍCULA RESPONSIVA (PANEL DE MENSAJES)
   ===================================================================== */
.content-grid-equal {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.content-grid > *,
.content-grid-equal > * {
    min-width: 0;
    overflow: hidden;
}

.form-row-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 992px) {
    .content-grid-equal {
        grid-template-columns: 1fr !important;
        gap: 24px;
    }
}

@media (max-width: 576px) {
    .form-row-grid-2 {
        grid-template-columns: 1fr !important;
        gap: 12px;
    }
}

/* ==================================================== */
/* BARRA INFERIOR DE ESTADO Y CONTROLES (FOOTER BAR)    */
/* ==================================================== */
.system-footer-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(7, 14, 11, 0.94);
    border-top: 1px solid rgba(30, 189, 131, 0.22);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 24px;
    z-index: 999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
}

.footer-left, .footer-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-btn {
    background: rgba(30, 189, 131, 0.1);
    border: 1px solid rgba(30, 189, 131, 0.28);
    border-radius: 20px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-family: inherit;
    font-size: 12.5px;
    color: #f0fdf4;
    padding: 6px 14px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.footer-btn:hover {
    background: rgba(30, 189, 131, 0.22);
    border-color: var(--accent-primary, #1ebd83);
    transform: translateY(-1px);
}

body {
    padding-bottom: 65px;
}

@media (max-width: 768px) {
    .system-footer-bar {
        display: flex;
        padding: 6px 12px;
        gap: 6px;
        font-size: 11px;
    }
    .footer-btn {
        padding: 4px 8px;
        font-size: 11px;
        border-radius: 14px;
    }
    .footer-left {
        gap: 6px;
        overflow-x: auto;
    }
    .footer-right {
        gap: 6px;
    }
    body {
        padding-bottom: 60px;
    }
}