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

:root {
    --primary: #4F46E5;
    --primary-hover: #4338CA;
    --secondary: #10B981;
    --secondary-hover: #059669;
    --dark: #111827;
    --light: #F3F4F6;
    --gray: #6B7280;
    --white: #FFFFFF;
    --danger: #EF4444;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: var(--bg-gradient);
    min-height: 100vh;
    color: var(--dark);
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Classes */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    border-radius: 12px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    margin-bottom: 2rem;
    position: sticky;
    top: 1rem;
    z-index: 100;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

nav ul li a {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: var(--primary);
}

nav ul li a.active {
    color: var(--primary);
    font-weight: 600;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.4);
}

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

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

.btn-whatsapp {
    background-color: #25D366;
    color: white;
    box-shadow: 0 4px 6px -1px rgba(37, 211, 102, 0.4);
}
.btn-whatsapp:hover {
    background-color: #128C7E;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(37, 211, 102, 0.4);
}

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

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 8px;
    background: rgba(255,255,255,0.8);
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Cards */
.card {
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.card h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--dark);
}

/* Auth Pages */
.auth-container {
    max-width: 400px;
    margin: 4rem auto;
}
.auth-container h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary);
}

/* Dashboard / Tables */
.table-container {
    overflow-x: auto;
}

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

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

th {
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

tr:hover {
    background: rgba(255,255,255,0.4);
}

/* Grid Layout */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* Stats Card */
.stat-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}
.stat-card .label {
    color: var(--gray);
    font-weight: 500;
}

/* Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
}
.badge-success { background: #D1FAE5; color: #065F46; }
.badge-warning { background: #FEF3C7; color: #92400E; }

/* Flex utilities */
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mt-2 { margin-top: 1rem; }

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}
.alert-error {
    background: #FEE2E2;
    color: #991B1B;
    border: 1px solid #F87171;
}
.alert-success {
    background: #D1FAE5;
    color: #065F46;
    border: 1px solid #34D399;
}