/* ============================================
   VARIABLES Y RESET
   ============================================ */

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

:root {
    /* Colores principales de MentorHub */
    --primary-color: #1B465E;
    --primary-dark: #0f2a3a;
    --secondary-color: #3B687E;
    --accent-color: #A6BDCB;
    --bg-light: #F3F2E2;
    --bg-dark: #0f2a3a;
    --bg-card: #FFFFFF;
    --bg-hover: #e8e7d8;
    --text-primary: #1A1A1A;
    --text-secondary: #6B7280;
    --border-color: #A6BDCB;

    /* Colores de estado */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;

    /* Tipografía */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}


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

body {
    font-family: var(--font-main);
    background: var(--bg-light);
    color: var(--text-primary);
    line-height: 1.6;
}

/* ============================================
   PÁGINA DE LOGIN
   ============================================ */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.logo-section {
    text-align: center;
    margin-bottom: 32px;
}

.logo-section h1 {
    font-family: var(--font-heading);
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.logo-section p {
    color: var(--text-secondary);
    font-size: 14px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input {
    padding: 12px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.error-message {
    padding: 12px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    border-radius: 8px;
    color: var(--danger-color);
    font-size: 14px;
}

.btn-primary {
    padding: 14px;
    background: var(--primary-color);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(27, 70, 94, 0.3);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.login-footer {
    margin-top: 24px;
    text-align: center;
}

.login-footer a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.login-footer a:hover {
    color: var(--primary-color);
}

/* ============================================
   DASHBOARD LAYOUT
   ============================================ */

.dashboard {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    padding: 24px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.05);
}

.sidebar-header {
    padding: 0 24px 24px;
    border-bottom: 2px solid var(--accent-color);
    text-align: center;
}

.sidebar-header h2 {
    font-family: var(--font-heading);
    font-size: 20px;
    margin-bottom: 4px;
    color: var(--primary-color);
}

.sidebar-header .user-info {
    font-size: 13px;
    color: var(--text-secondary);
}

.sidebar-nav {
    padding: 24px 0;
}

.nav-item {
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    font-weight: 500;
}

.nav-item:hover,
.nav-item.active {
    background: var(--bg-hover);
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

.nav-item .icon {
    font-size: 18px;
}

.sidebar-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
}

.btn-logout {
    width: 100%;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
}

.btn-logout:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
    color: white;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 32px;
    background: var(--bg-light);
}

.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-family: var(--font-heading);
    font-size: 28px;
    margin-bottom: 8px;
    color: var(--primary-color);
}

.page-header p {
    color: var(--text-secondary);
}

/* ============================================
   CARDS Y SECCIONES
   ============================================ */

.section {
    display: none;
}

.section.active {
    display: block;
}

.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.card-header {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--accent-color);
}

.card-header h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    margin-bottom: 4px;
    color: var(--primary-color);
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: var(--bg-dark);
    border-radius: 8px;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.time-inputs {
    display: flex;
    gap: 8px;
    align-items: center;
}

.time-inputs input {
    flex: 1;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="date"],
input[type="time"],
select {
    padding: 10px 14px;
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    width: 100%;
    transition: all 0.3s;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(59, 104, 126, 0.1);
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-success {
    background: var(--success-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

/* ============================================
   TABLAS
   ============================================ */

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: var(--bg-dark);
}

th {
    padding: 12px;
    text-align: left;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
}

td {
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.status-confirmed {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.status-pending {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.status-cancelled {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}