/* ===========================
   ESTILOS GLOBALES
   =========================== */

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

:root {
    --primary-color: #e74c3c;
    --secondary-color: #3498db;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --light-bg: #f8f9fa;
    --dark-text: #2c3e50;
    --border-color: #dee2e6;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--dark-text);
    background-color: #fff;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===========================
   NAVBAR
   =========================== */

.navbar {
    background: linear-gradient(135deg, var(--primary-color), #c0392b);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand h1 {
    font-size: 1.8rem;
    font-weight: bold;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav-link:hover {
    opacity: 0.8;
}

/* ===========================
   FOOTER
   =========================== */

.footer {
    background: var(--light-bg);
    color: var(--dark-text);
    padding: 2rem 0;
    text-align: center;
    border-top: 2px solid var(--border-color);
    margin-top: 4rem;
}

.footer p {
    margin: 0.5rem 0;
}

/* ===========================
   HERO SECTION
   =========================== */

.hero {
    background: linear-gradient(135deg, var(--primary-color), #c0392b);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* ===========================
   FORMULARIOS
   =========================== */

.form-container {
    max-width: 600px;
    margin: 3rem auto;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.form-group.checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group.checkbox input {
    width: auto;
    margin: 0;
}

.form-group.checkbox label {
    margin: 0;
}

/* ===========================
   BOTONES
   =========================== */

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #c0392b;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #2980b9;
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #27ae60;
}

.btn-warning {
    background: #f39c12;
    color: white;
}

.btn-warning:hover {
    background: #e67e22;
}

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

.btn-danger:hover {
    background: #c0392b;
}

.btn-block {
    width: 100%;
    display: block;
    margin-top: 2rem;
}

/* ===========================
   ALERTAS
   =========================== */

.alert {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    border-left: 4px solid;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-left-color: var(--success-color);
}

.alert-error,
.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border-left-color: var(--danger-color);
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border-left-color: var(--secondary-color);
}

/* ===========================
   CONFIRMACIÓN
   =========================== */

.confirmation {
    text-align: center;
    padding: 3rem 0;
}

.confirmation-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
}

.confirmation h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--success-color);
}

.confirmation p {
    font-size: 1.1rem;
    color: var(--dark-text);
    margin-bottom: 2rem;
}

.qr-section {
    margin: 3rem 0;
    text-align: center;
}

.qr-section img {
    max-width: 300px;
    margin: 1rem 0;
}

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

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

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

table th {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

table td {
    padding: 0.8rem;
    border-bottom: 1px solid var(--border-color);
}

table tr:hover {
    background: var(--light-bg);
}

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

.dashboard-container {
    max-width: 1000px;
    margin: 2rem auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    border-top: 4px solid var(--primary-color);
}

.stat-card h3 {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.stat-card .number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

/* ===========================
   LOGIN
   =========================== */

.login-container {
    max-width: 400px;
    margin: 4rem auto;
    padding: 2rem;
    background: var(--light-bg);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

/* ===========================
   FILTROS
   =========================== */

.filter-section {
    background: var(--light-bg);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.filter-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

/* ===========================
   RESPONSIVO
   =========================== */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .navbar-menu {
        gap: 1rem;
    }

    .navbar-brand h1 {
        font-size: 1.3rem;
    }

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

    .filter-group {
        grid-template-columns: 1fr;
    }

    table {
        font-size: 0.9rem;
    }

    table th,
    table td {
        padding: 0.5rem;
    }
}