/* Demo Gym - Estilos */
:root {
    --color-primary: #f59e0b;
    --color-primary-dark: #d97706;
    --color-secondary: #1f2937;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-bg: #111827;
    --color-surface: #1f2937;
    --color-border: #374151;
    --color-text: #f9fafb;
    --color-text-muted: #9ca3af;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --nav-height: 70px;
    --header-height: 60px;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    background: var(--color-surface);
    padding: 0 1.5rem;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text);
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-badge {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.app-main {
    flex: 1;
    padding: 1.5rem;
    padding-bottom: calc(var(--nav-height) + 1.5rem);
}

.app-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--color-surface);
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--color-border);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    text-decoration: none;
    color: var(--color-text-muted);
    padding: 0.5rem 1rem;
}

.nav-item.active {
    color: var(--color-primary);
}

.nav-icon {
    font-size: 1.5rem;
}

.nav-label {
    font-size: 0.7rem;
    font-weight: 600;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

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

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn-block {
    width: 100%;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
}

.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    font-weight: 700;
}

.card-body {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 1rem;
}

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

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

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

.bg-warning {
    background: var(--color-warning);
    color: var(--color-bg);
}

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

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

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

.text-muted {
    color: var(--color-text-muted);
}

.text-success {
    color: var(--color-success);
}

.text-danger {
    color: var(--color-danger);
}

.text-primary {
    color: var(--color-primary);
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

/* Login */
.login-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-surface) 100%);
    padding: 2rem;
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo-icon {
    font-size: 4rem;
    margin-bottom: 0.5rem;
}

.login-logo-text {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
}

.login-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--color-border);
}

.role-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.role-btn {
    padding: 1.5rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    cursor: pointer;
    text-align: center;
    transition: all 0.2s;
    color: var(--color-text);
}

.role-btn:hover {
    border-color: var(--color-primary);
}

.role-btn.selected {
    border-color: var(--color-primary);
    background: var(--color-primary);
    color: var(--color-bg);
}

.role-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.role-name {
    font-weight: 700;
}

/* Acceso */
.acceso-panel {
    max-width: 500px;
    margin: 0 auto;
    text-align: center;
}

.acceso-input {
    font-size: 2rem;
    text-align: center;
    letter-spacing: 0.25rem;
    text-transform: uppercase;
}

.acceso-result {
    margin-top: 2rem;
    padding: 2rem;
    border-radius: var(--radius-lg);
}

.acceso-ok {
    background: rgba(16, 185, 129, 0.2);
    border: 2px solid var(--color-success);
}

.acceso-denied {
    background: rgba(239, 68, 68, 0.2);
    border: 2px solid var(--color-danger);
}

/* Miembros */
.miembro-card {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.miembro-avatar {
    font-size: 2.5rem;
}

.miembro-estado {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.estado-activo {
    background: var(--color-success);
}

.estado-vencido {
    background: var(--color-danger);
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--color-surface);
    padding: 1.25rem;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--color-border);
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

/* Clases */
.clase-card {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-left: 4px solid;
}

.clase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.clase-nombre {
    font-weight: 700;
}

.clase-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* IMC */
.imc-circle {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto;
}