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

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --bg-color: #f3f4f6;
    --card-bg: rgba(255, 255, 255, 0.85);
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --border: #e5e7eb;
}

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

body {
    background: linear-gradient(135deg, #e0e7ff 0%, #ede9fe 100%);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Glassmorphism Classes */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
    border-radius: 16px;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    width: 100%;
}

.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 0.95rem;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-success { background-color: var(--success); color: white; }
.btn-danger { background-color: var(--danger); color: white; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.85rem; }

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
    text-align: left;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
    background: rgba(255, 255, 255, 0.9);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Auth Pages */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: 2.5rem;
}

/* Dashboard Layout */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: white;
    padding: 2rem 1.5rem;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    margin-bottom: 2rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    background: var(--primary-color);
    color: white;
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.menu-toggle {
    display: none;
    border: 1px solid var(--border);
    background: white;
    color: var(--text-main);
    border-radius: 8px;
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}

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

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

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

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

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

th {
    font-weight: 600;
    color: var(--text-muted);
    background: rgba(249, 250, 251, 0.5);
}

/* Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-pending { background: #fef3c7; color: #d97706; }
.badge-approved { background: #d1fae5; color: #059669; }
.badge-rejected { background: #fee2e2; color: #dc2626; }

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 500;
}
.alert-error { background: #fee2e2; color: #dc2626; border: 1px solid #f87171; }
.alert-success { background: #d1fae5; color: #059669; border: 1px solid #34d399; }

@media (max-width: 900px) {
    .container {
        padding: 1rem;
    }

    .dashboard-layout {
        display: block;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 1000;
        width: min(84vw, 300px);
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
    }

    body.sidebar-open .sidebar {
        transform: translateX(0);
    }

    body.sidebar-open::after {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.35);
        z-index: 999;
    }

    .main-content {
        padding: 1rem;
    }

    .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .topbar {
        flex-wrap: wrap;
        align-items: flex-start;
        margin-bottom: 1.25rem;
    }

    .topbar h2 {
        font-size: 1.2rem;
    }

    .user-info {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 0.5rem 0.75rem;
    }

    .card {
        padding: 1rem;
    }

    .auth-card {
        max-width: 100%;
        margin: 1rem;
        padding: 1.5rem;
    }

    .btn {
        min-height: 42px;
    }

    table {
        min-width: 760px;
    }

    th, td {
        padding: 0.75rem;
        white-space: nowrap;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0.75rem;
    }

    .auth-card {
        margin: 0.75rem;
        padding: 1.25rem;
    }

    .form-control {
        padding: 0.7rem 0.9rem;
    }

    .btn {
        width: 100%;
    }

    .btn-sm {
        width: auto;
    }
}