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

:root {
    --bg-color: #f3f4f6;
    --sidebar-bg: #111827;
    --sidebar-hover: #1f2937;
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-light: #f9fafb;
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --card-bg: rgba(255, 255, 255, 0.9);
    --border-color: #e5e7eb;
    --transition: all 0.3s ease;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    box-shadow: 4px 0 10px rgba(0,0,0,0.1);
    z-index: 100;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    border-bottom: 1px solid var(--sidebar-hover);
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    padding: 1rem 0;
    flex-grow: 1;
}

.nav-links li {
    padding: 0.5rem 1rem;
}

.nav-links a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    color: #9ca3af;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: var(--transition);
    font-weight: 500;
}

.nav-links a i {
    margin-right: 1rem;
    font-size: 1.25rem;
}

.nav-links a:hover, .nav-links a.active {
    background-color: var(--sidebar-hover);
    color: var(--text-light);
    transform: translateX(5px);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
}

.topbar {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 90;
}

.topbar-title {
    font-size: 1.25rem;
    font-weight: 600;
}

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

.user-profile img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

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

/* Cards & Containers */
.card {
    background: var(--card-bg);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

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

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    font-size: 0.875rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    color: white;
    box-shadow: 0 4px 6px rgba(79, 70, 229, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(79, 70, 229, 0.3);
}

.btn-success { background-color: var(--success-color); color: white; }
.btn-warning { background-color: var(--warning-color); color: white; }
.btn-danger { background-color: var(--danger-color); color: white; }
.btn-secondary { background-color: #6b7280; color: white; }

.btn-success:hover, .btn-warning:hover, .btn-danger:hover, .btn-secondary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

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

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

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

th {
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    background-color: #f9fafb;
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background-color: #f3f4f6;
}

/* Badges */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-pending { background-color: #fef3c7; color: #d97706; }
.badge-follow_up { background-color: #dbeafe; color: #2563eb; }
.badge-confirmed { background-color: #d1fae5; color: #059669; }
.badge-lost { background-color: #fee2e2; color: #dc2626; }
.badge-not_started { background-color: #f3f4f6; color: #4b5563; }
.badge-in_progress { background-color: #e0e7ff; color: #4f46e5; }
.badge-completed { background-color: #dcfce3; color: #16a34a; }
.badge-on_hold { background-color: #ffedd5; color: #ea580c; }

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

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

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: var(--transition);
    background-color: #f9fafb;
}

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

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    border-left: 4px solid var(--primary-color);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 1rem;
    color: white;
}

.stat-content h3 {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-content p {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Utility */
.flex { display: flex; }
.justify-between { justify-content: space-between; }
.items-center { align-items: center; }
.gap-2 { gap: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.text-right { text-align: right; }