/* =============================================================================
   TAKUMI DENTAL - Estilos principales + Animaciones
   ============================================================================= */

:root {
    --primary: #0a0f1c;
    --secondary: #111827;
    --accent: #06b6d4;
    --accent2: #8b5cf6;
    --accent3: #10b981;
    --text: #f1f5f9;
    --text-muted: #64748b;
    --border: rgba(255,255,255,0.1);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
}

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

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

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Animaciones globales */
.fade-in {
    animation: fadeIn 0.4s ease forwards;
}
.slide-up {
    animation: slideUp 0.3s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes slideUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* === Login / Register === */
.login-container, .register-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.login-box, .register-box {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    backdrop-filter: blur(10px);
    animation: fadeIn 0.6s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.logo { 
    text-align: center; 
    margin-bottom: 2rem; 
}
.logo-icon { 
    font-size: 3rem; 
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.logo-text { 
    display: block; 
    font-size: 1.6rem; 
    font-weight: 800; 
    margin-top: 0.5rem;
}

h2 { 
    text-align: center; 
    margin-bottom: 0.5rem; 
    font-weight: 700;
    color: var(--text);
}
p { 
    text-align: center; 
    color: var(--text-muted); 
    margin-bottom: 1.5rem; 
    font-size: 0.95rem;
}

.form-group { 
    margin-bottom: 1.25rem; 
}
.form-group label { 
    display: block; 
    margin-bottom: 0.5rem; 
    font-size: 0.9rem; 
    font-weight: 600;
    color: var(--text);
}
.form-group input {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 1rem;
    transition: all 0.25s ease;
}
.form-group input:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255,255,255,0.08);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.2);
}

/* Botones con animación */
.btn {
    padding: 0.875rem 1.5rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    border: none;
    font-size: 1rem;
    letter-spacing: 0.3px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    color: white;
    width: 100%;
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(139, 92, 246, 0.45);
}
.btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.05);
    transform: translateY(-1px);
}

.links { 
    margin-top: 1.5rem; 
    text-align: center; 
}
.links a { 
    color: var(--text-muted); 
    text-decoration: none; 
    display: block; 
    margin: 0.5rem 0; 
    transition: color 0.2s;
}
.links a:hover { 
    color: var(--accent); 
    transform: translateX(3px);
}

/* === App Layout === */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    background: var(--secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
    transition: background 0.3s;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.sidebar-nav .nav-item {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 10px;
    margin-bottom: 0.25rem;
    transition: all 0.2s ease;
    font-weight: 500;
}
.sidebar-nav .nav-item:hover,
.sidebar-nav .nav-item.active {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent2);
    transform: translateX(4px);
}
.sidebar-nav .nav-item svg {
    margin-right: 0.75rem;
    width: 20px;
    height: 20px;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.top-bar {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0,0,0,0.15);
}
.top-bar h1 {
    font-weight: 800;
    font-size: 1.5rem;
}

.content-area {
    padding: 2rem;
    flex: 1;
}

/* === Stats Cards === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.25rem;
    transition: all 0.3s ease;
}
.stat-card:hover {
    background: rgba(255,255,255,0.05);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.stat-card h3 { 
    color: var(--text-muted); 
    font-size: 0.875rem; 
    margin-bottom: 0.5rem; 
    font-weight: 600;
}
.stat-value { 
    font-size: 1.875rem; 
    font-weight: 800; 
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === Table === */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    animation: fadeIn 0.5s ease;
}
.data-table th, 
.data-table td {
    padding: 1rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.data-table th { 
    color: var(--text-muted); 
    font-weight: 700; 
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.data-table tbody tr {
    transition: background 0.2s;
}
.data-table tbody tr:hover {
    background: rgba(255,255,255,0.02);
}
.data-table a { 
    color: var(--accent); 
    text-decoration: none; 
}

/* === Search === */
.search-bar { 
    margin-bottom: 1.5rem; 
}
.search-bar input {
    width: 100%;
    max-width: 500px;
    padding: 0.875rem 1.25rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text);
    font-size: 1rem;
    transition: all 0.25s;
}
.search-bar input:focus {
    outline: none;
    border-color: var(--accent2);
    background: rgba(255,255,255,0.08);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    .app-layout {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .top-bar {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}