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

:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --background-color: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
    background-color: #1e1b4b !important; /* Dark Indigo */
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-link {
    font-weight: 500;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

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

/* Tables */
.table {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.table thead th {
    background-color: #f1f5f9;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

.table tbody tr:hover {
    background-color: #f8fafc;
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 600;
    border-radius: 6px;
}

.bg-success { background-color: #d1fae5 !important; color: #065f46; }
.bg-danger { background-color: #fee2e2 !important; color: #991b1b; }
.bg-warning { background-color: #fef3c7 !important; color: #92400e; }
.bg-info { background-color: #e0f2fe !important; color: #075985; }
.bg-secondary { background-color: #f1f5f9 !important; color: #475569; }

/* Forms */
.form-control {
    border-radius: 8px;
    border-color: var(--border-color);
    padding: 0.625rem 0.75rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Utilities */
.text-muted { color: var(--text-muted) !important; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05) !important; }