/* Estilos globales */
:root {
    --primary-color: #5865F2;
    --secondary-color: #57F287;
    --danger-color: #ED4245;
    --warning-color: #FEE75C;
    --background: #f5f6fa;
    --card-bg: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #6c757d;
    --border-color: #e1e4e8;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Modo oscuro */
[data-theme="dark"] {
    --primary-color: #5865F2;
    --secondary-color: #57F287;
    --danger-color: #ED4245;
    --warning-color: #FEE75C;
    --background: #0a0a0a;
    --card-bg: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #909090;
    --border-color: #2a2a2a;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.7);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Navbar */
.navbar {
    background: var(--card-bg);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-brand i {
    font-size: 1.75rem;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar,
.user-avatar-placeholder {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.user-avatar-placeholder {
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.username {
    font-weight: 500;
    color: var(--text-primary);
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background: #4752C4;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(88, 101, 242, 0.3);
}

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

.btn-secondary:hover {
    background: #5a6268;
}

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

.btn-logout:hover {
    background: #c53030;
}

.btn-theme {
    background: transparent;
    color: var(--text-primary);
    padding: 0.625rem;
    border: 2px solid var(--border-color);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-theme:hover {
    background: var(--background);
    border-color: var(--primary-color);
    transform: none;
}

.btn-theme i {
    font-size: 1.1rem;
}

/* Main content */
.main-content {
    min-height: calc(100vh - 140px);
    padding: 2rem 0;
}

/* Footer */
.footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    margin-top: 3rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
    color: var(--text-secondary);
}

/* Form elements */
.form-select {
    padding: 0.625rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.9375rem;
    background: var(--card-bg);
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Modo oscuro - estilos específicos */
[data-theme="dark"] .btn-secondary {
    background: #2a2a2a;
    color: #e0e0e0;
    border: 2px solid #3a3a3a;
}

[data-theme="dark"] .btn-secondary:hover {
    background: #3a3a3a;
    border-color: #5865F2;
}

[data-theme="dark"] .btn-theme {
    border-color: #3a3a3a;
}

[data-theme="dark"] .btn-theme:hover {
    background: #2a2a2a;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-brand {
        font-size: 1.25rem;
    }
    
    .nav-brand i {
        font-size: 1.5rem;
    }
    
    .username {
        display: none;
    }
}