/* Custom Styles for Academic PDF Generator */

/* Variables */
:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --secondary: #06b6d4;
    --success: #10b981;
    --info: #06b6d4;
    --warning: #f59e0b;
    --danger: #ef4444;
    --light: #0f172a;
    --dark: #f1f5f9;
    --surface: #1e293b;
    --surface-alt: #162032;
    --border: rgba(255, 255, 255, 0.1);
    --muted: #94a3b8;
    --border-radius: 0.625rem;
    --box-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
    --transition: 0.3s ease;
}

/* Base Styles */
body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background-color: var(--light);
    color: var(--dark);
}

.bg-light {
    background-color: var(--light) !important;
    background-image: radial-gradient(circle at top right, rgba(79, 70, 229, 0.2), transparent 32%);
}

/* Header Styles */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #0dcaf0 100%) !important;
}

/* Card Styles */
.card {
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background-color: var(--surface);
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.card-header {
    background: transparent;
    border-bottom: none;
    padding-top: 0;
    padding-bottom: 1rem;
}

.card-body {
    padding: 2.5rem;
}

/* Form Styles */
.form-label {
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

h4.fw-semibold {
    color: var(--dark);
}

.form-control {
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background-color: var(--surface-alt);
    color: var(--dark);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.25);
    outline: none;
}

.form-control.is-valid {
    border-color: var(--success);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.input-group-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    color: white;
    font-weight: 500;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.input-group .form-control {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    border-left: none;
}

.form-text {
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: block;
    min-height: 1.25em;
}

/* Button Styles */
.btn {
    font-weight: 600;
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    transition: var(--transition);
    border: none;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

.btn-success:hover {
    background-color: #059669;
    border-color: #059669;
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

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

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

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

.review-button {
    margin-top: 0.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-color: transparent;
    color: white;
}

.review-button:hover,
.review-button:focus {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary));
    border-color: transparent;
    color: white;
}

.form-select {
    background-color: var(--surface-alt);
    border-color: var(--border);
    color: var(--dark);
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.25);
}

.form-control::placeholder {
    color: var(--muted);
}

.text-muted,
.form-text,
.lead.text-white-50 {
    color: var(--muted) !important;
}

/* Dynamic Fields Styles */
.authors-list,
.advisors-list,
.coadvisors-list {
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.author-row,
.advisor-row,
.coadvisor-row {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
}

.author-row:last-child,
.advisor-row:last-child,
.coadvisor-row:last-child {
    border-bottom: none;
}

.author-row:hover,
.advisor-row:hover,
.coadvisor-row:hover {
    background-color: rgba(255, 255, 255, 0.04);
}

.remove-field {
    background: none;
    border: none;
    color: var(--danger);
    font-size: 1.25rem;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.remove-field:hover {
    background-color: #fff5f5;
    color: var(--danger);
    transform: rotate(90deg);
}

.add-field-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

/* Input Group Enhancements */
.input-group .form-control:focus {
    border-right-color: var(--primary);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Textarea Styles */
.form-control[rows] {
    min-height: 100px;
    resize: vertical;
}

/* Character Counters */
.form-text {
    font-family: 'Courier New', Courier, monospace;
    font-weight: 500;
}

.form-text.valid {
    color: var(--success);
}

.form-text.invalid {
    color: var(--danger);
}

.reference-builder {
    background-color: var(--surface-alt);
    border-color: var(--border) !important;
}

.references-list {
    display: grid;
    gap: 0.5rem;
}

.reference-item {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background-color: var(--surface-alt);
    color: var(--dark);
    line-height: 1.5;
}

.reference-item .flex-grow-1 {
    color: var(--dark);
}

.modal-content {
    background-color: var(--surface);
    border: 1px solid var(--border);
    color: var(--dark);
}

.modal-body h4 {
    color: var(--dark);
}

.modal-header {
    border-bottom-color: var(--border);
}

.review-content {
    color: var(--dark);
    white-space: pre-wrap;
    line-height: 1.65;
}

.spinner-border.text-primary {
    color: var(--secondary) !important;
}

.attachment-upload {
    padding: 1rem;
    border: 1px dashed rgba(129, 140, 248, 0.65);
    border-radius: var(--border-radius);
    background-color: var(--surface-alt);
}

.attachments-list {
    display: grid;
    gap: 0.75rem;
}

.attachment-item {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr) auto;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    background-color: var(--surface-alt);
}

.attachment-preview {
    width: 96px;
    height: 72px;
    object-fit: cover;
    border-radius: 0.375rem;
}

.attachment-details {
    display: grid;
    gap: 0.5rem;
    min-width: 0;
}

.attachment-details strong {
    color: var(--dark);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .card-body {
        padding: 1.5rem;
    }

    .display-6 {
        font-size: 2.5rem;
    }

    h4 {
        font-size: 1.25rem;
    }

    .author-row,
    .advisor-row,
    .coadvisor-row {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .remove-field {
        margin-top: 0.5rem;
    }

    .input-group {
        flex-wrap: wrap;
    }

    .input-group-text,
    .input-group .form-control {
        border-radius: var(--border-radius);
    }

    .input-group .form-control {
        border-left: 1px solid #ced4da;
        border-top-left-radius: 0;
        border-top-right-radius: var(--border-radius);
    }

    .attachment-item {
        grid-template-columns: 72px minmax(0, 1fr) auto;
    }

    .attachment-preview {
        width: 72px;
        height: 60px;
    }
}

/* Animation for dynamic elements */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

/* Print-friendly adjustments */
@media print {
    body {
        background-color: white;
    }

    .card {
        box-shadow: none;
    }

    .d-print-none {
        display: none !important;
    }
}