/* ============================================
   ITU-T Report Generator - Custom Styles
   ============================================ */

/* Color scheme - ITU Brand Colors */
:root {
    --itu-primary: #049BD6;      /* Main ITU blue */
    --itu-light: #91CDF2;        /* Light blue */
    --itu-dark: #052D53;         /* Dark blue */
    --itu-bg: #f8f9fa;
}

body {
    background-color: var(--itu-bg);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Header */
header h1 {
    color: var(--itu-dark);
}

/* Main Card */
.card {
    border: none;
    border-radius: 15px;
    margin-bottom: 2rem;
}

/* Form Labels */
.form-label {
    color: var(--itu-dark);
    margin-bottom: 0.5rem;
}

/* Input Fields */
.form-control:focus,
.form-select:focus {
    border-color: var(--itu-primary);
    box-shadow: 0 0 0 0.25rem rgba(4, 155, 214, 0.25);
}

/* Buttons */
.btn-primary {
    background-color: var(--itu-primary);
    border-color: var(--itu-primary);
}

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

.btn-outline-primary {
    color: var(--itu-primary);
    border-color: var(--itu-primary);
}

.btn-outline-primary:hover,
.btn-outline-primary.active,
.btn-check:checked + .btn-outline-primary {
    background-color: var(--itu-primary);
    border-color: var(--itu-primary);
    color: white;
}

/* Generate Button */
#generateBtn {
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Alert Boxes */
.alert {
    border-radius: 10px;
}

.alert-info {
    background-color: rgba(145, 205, 242, 0.3);
    border-color: var(--itu-light);
    color: var(--itu-dark);
}

.alert-success {
    background-color: #e8f5e9;
    border-color: #81c784;
    color: #388e3c;
}

.alert-danger {
    background-color: #ffebee;
    border-color: #ef5350;
    color: #c62828;
}

/* Download Link */
#downloadLink {
    padding: 0.75rem 1.5rem;
    font-weight: 600;
}

/* Form Text (Help Text) */
.form-text {
    color: #6c757d;
    font-size: 0.875rem;
}

/* Footer */
footer {
    margin-top: 3rem;
    color: var(--itu-dark);
}

/* Card header accent */
.card {
    border-top: 4px solid var(--itu-primary);
}

/* Links */
a {
    color: var(--itu-primary);
}

a:hover {
    color: var(--itu-dark);
}

/* Quick Guide */
.bg-light {
    background-color: rgba(145, 205, 242, 0.15) !important;
    border-color: var(--itu-light) !important;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .card-body {
        padding: 1.5rem !important;
    }
}

/* Spinner Animation */
.spinner-border {
    animation: spinner-border 0.75s linear infinite;
}

@keyframes spinner-border {
    to {
        transform: rotate(360deg);
    }
}

/* Hidden class utility */
.d-none {
    display: none !important;
}