/**
 * Public Styles - Clinical Trials Finder
 *
 * @package ClinicalTrialsFinder
 * @since 1.0.0
 */

/* CSS Variables for Branding - These will be overridden by PHP */
:root {
	--ctf-primary: #009490;
	--ctf-secondary: #00BFB3;
	--ctf-accent: #FF6B6B;
	--ctf-text: #2C3E50;
	--ctf-background: #FFFFFF;
	--ctf-border: #E0E0E0;
	--ctf-radius: 8px;
	--ctf-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
	--ctf-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
	--ctf-transition: all 0.3s ease;
}

/* ==========================================================================
   Main Container
   ========================================================================== */

.ctf-search-container {
	margin: 30px auto;
	max-width: 1200px;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
	color: var(--ctf-text);
	line-height: 1.6;
}

/* Logo Header */
.ctf-logo-header {
	text-align: center;
	margin-bottom: 30px;
}

.ctf-logo {
	max-width: 250px;
	height: auto;
}

/* ==========================================================================
   Search Form
   ========================================================================== */

.ctf-search-form {
	background: var(--ctf-background);
	padding: 40px;
	border-radius: var(--ctf-radius);
	box-shadow: var(--ctf-shadow);
	margin-bottom: 40px;
}

.ctf-search-title {
	margin: 0 0 10px 0;
	font-size: 32px;
	font-weight: 700;
	color: var(--ctf-primary);
	text-align: center;
}

.ctf-search-subtitle {
	margin: 0 0 30px 0;
	text-align: center;
	color: #666;
	font-size: 16px;
}

/* Form Fields */
.ctf-form-row {
	display: grid;
	gap: 20px;
	margin-bottom: 20px;
}

.ctf-basic-search {
	grid-template-columns: 2fr 2fr 1fr;
	align-items: end;
}

.ctf-filter-row {
	grid-template-columns: 1fr 1fr;
}

.ctf-form-field {
	display: flex;
	flex-direction: column;
}

.ctf-form-field label {
	display: block;
	margin-bottom: 8px;
	font-weight: 600;
	color: var(--ctf-text);
	font-size: 14px;
}

.ctf-required {
	color: var(--ctf-accent);
}

.ctf-form-field input[type="text"],
.ctf-form-field input[type="number"],
.ctf-form-field select {
	width: 100%;
	padding: 12px 16px;
	border: 2px solid var(--ctf-border);
	border-radius: var(--ctf-radius);
	font-size: 16px;
	transition: var(--ctf-transition);
	font-family: inherit;
}

.ctf-form-field input[type="text"]:focus,
.ctf-form-field input[type="number"]:focus,
.ctf-form-field select:focus {
	outline: none;
	border-color: var(--ctf-primary);
	box-shadow: 0 0 0 3px rgba(0, 148, 144, 0.1);
}

.ctf-field-help {
	margin: 5px 0 0 0;
	font-size: 12px;
	color: #999;
}

.ctf-field-half {
	grid-column: span 1;
}

.ctf-field-full {
	grid-column: span 2;
}

/* Radio Group */
.ctf-radio-group {
	display: flex;
	gap: 20px;
	padding: 10px 0;
}

.ctf-radio-label {
	display: flex;
	align-items: center;
	gap: 8px;
	cursor: pointer;
	font-weight: 500;
}

.ctf-radio-label input[type="radio"] {
	width: 18px;
	height: 18px;
	cursor: pointer;
}

/* Buttons */
.ctf-btn {
	padding: 12px 24px;
	border: none;
	border-radius: var(--ctf-radius);
	font-size: 16px;
	font-weight: 600;
	cursor: pointer;
	transition: var(--ctf-transition);
	text-decoration: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	font-family: inherit;
}

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

.ctf-btn-primary:hover {
	background: var(--ctf-secondary);
	transform: translateY(-1px);
	box-shadow: var(--ctf-shadow);
}

.ctf-btn-secondary {
	background: white;
	color: var(--ctf-primary);
	border: 2px solid var(--ctf-primary);
}

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

.ctf-btn-link {
	background: none;
	border: none;
	color: var(--ctf-primary);
	padding: 0;
	font-size: 14px;
	cursor: pointer;
	text-decoration: none;
	display: inline-flex;
	align-items: center;
	gap: 5px;
}

.ctf-btn-link:hover {
	text-decoration: underline;
}

.ctf-icon {
	width: 16px;
	height: 16px;
}

.ctf-icon-chevron {
	transition: transform 0.3s ease;
}

.ctf-icon-chevron.ctf-rotated {
	transform: rotate(180deg);
}

/* Advanced Filters */
.ctf-advanced-toggle {
	text-align: center;
	margin: 20px 0;
}

.ctf-advanced-filters {
	margin-top: 30px;
	padding-top: 30px;
	border-top: 2px solid var(--ctf-border);
}

.ctf-filter-actions {
	display: flex;
	justify-content: flex-end;
	margin-top: 20px;
}

/* ==========================================================================
   Search Results
   ========================================================================== */

.ctf-results {
	margin-top: 40px;
}

/* Loading State */
.ctf-loading {
	text-align: center;
	padding: 60px 20px;
	color: var(--ctf-text);
}

.ctf-spinner {
	width: 50px;
	height: 50px;
	margin: 0 auto 20px;
	border: 4px solid var(--ctf-border);
	border-top-color: var(--ctf-primary);
	border-radius: 50%;
	animation: ctf-spin 1s linear infinite;
}

@keyframes ctf-spin {
	to { transform: rotate(360deg); }
}

/* Results Header */
.ctf-results-header {
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 30px;
	padding: 20px;
	background: var(--ctf-background);
	border-radius: var(--ctf-radius);
	border: 1px solid var(--ctf-border);
}

.ctf-results-count {
	font-size: 18px;
	font-weight: 600;
	color: var(--ctf-text);
}

.ctf-count-number {
	color: var(--ctf-primary);
	font-size: 24px;
}

.ctf-results-sort {
	display: flex;
	align-items: center;
	gap: 10px;
}

.ctf-results-sort label {
	font-weight: 600;
	color: var(--ctf-text);
}

.ctf-results-sort select {
	padding: 8px 12px;
	border: 2px solid var(--ctf-border);
	border-radius: var(--ctf-radius);
	font-size: 14px;
}

/* Results Container */
.ctf-results-container {
	display: grid;
	gap: 24px;
}

/* ==========================================================================
   Trial Cards
   ========================================================================== */

.ctf-trial-card {
	background: var(--ctf-background);
	border: 2px solid var(--ctf-border);
	border-radius: var(--ctf-radius);
	padding: 24px;
	transition: var(--ctf-transition);
	position: relative;
}

.ctf-trial-card:hover {
	box-shadow: var(--ctf-shadow-hover);
	border-color: var(--ctf-primary);
	transform: translateY(-2px);
}

/* Status Badge */
.ctf-trial-status-badge {
	position: absolute;
	top: 24px;
	right: 24px;
	padding: 6px 14px;
	border-radius: 20px;
	font-size: 11px;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.ctf-status-green {
	background: #d4edda;
	color: #155724;
}

.ctf-status-blue {
	background: #cce5ff;
	color: #004085;
}

.ctf-status-orange {
	background: #fff3cd;
	color: #856404;
}

.ctf-status-gray {
	background: #e2e3e5;
	color: #383d41;
}

.ctf-status-purple {
	background: #e7d4f7;
	color: #6f42c1;
}

.ctf-status-red {
	background: #f8d7da;
	color: #721c24;
}

/* Trial Header */
.ctf-trial-header {
	margin-bottom: 16px;
	padding-right: 120px; /* Space for status badge */
}

.ctf-trial-title {
	margin: 0 0 10px 0;
	font-size: 20px;
	font-weight: 700;
	color: var(--ctf-text);
	line-height: 1.4;
}

.ctf-trial-nct {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 13px;
	color: #666;
}

.ctf-nct-link {
	color: var(--ctf-primary);
	text-decoration: none;
	font-weight: 600;
	display: inline-flex;
	align-items: center;
	gap: 4px;
}

.ctf-nct-link:hover {
	text-decoration: underline;
}

.ctf-external-icon {
	width: 12px;
	height: 12px;
	opacity: 0.6;
}

/* Trial Summary */
.ctf-trial-summary {
	color: #555;
	line-height: 1.7;
	margin-bottom: 20px;
	font-size: 15px;
}

/* Trial Meta */
.ctf-trial-meta {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
	gap: 12px;
	margin-bottom: 20px;
	padding: 16px;
	background: #f8f9fa;
	border-radius: 6px;
}

.ctf-meta-item {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 13px;
	color: #666;
}

.ctf-meta-icon {
	width: 16px;
	height: 16px;
	color: var(--ctf-primary);
	flex-shrink: 0;
}

.ctf-meta-label {
	font-weight: 600;
}

.ctf-meta-value {
	color: var(--ctf-text);
}

/* Conditions Tags */
.ctf-trial-conditions {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 20px;
}

.ctf-condition-tag {
	padding: 4px 12px;
	background: var(--ctf-primary);
	color: white;
	border-radius: 16px;
	font-size: 12px;
	font-weight: 600;
}

.ctf-condition-tag.ctf-more {
	background: #e0e0e0;
	color: #666;
}

/* Trial Actions */
.ctf-trial-actions {
	display: flex;
	gap: 12px;
	padding-top: 20px;
	border-top: 1px solid var(--ctf-border);
}

.ctf-view-details,
.ctf-save-trial {
	flex: 1;
}

.ctf-btn-icon {
	width: 16px;
	height: 16px;
}

.ctf-icon-heart {
	width: 16px;
	height: 16px;
}

.ctf-save-trial.ctf-saved .ctf-icon-heart {
	fill: currentColor;
}

/* ==========================================================================
   Pagination
   ========================================================================== */

.ctf-pagination {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 10px;
	margin-top: 40px;
	padding: 20px;
}

.ctf-page-btn {
	padding: 8px 16px;
	border: 2px solid var(--ctf-border);
	background: white;
	border-radius: var(--ctf-radius);
	cursor: pointer;
	font-weight: 600;
	color: var(--ctf-text);
	transition: var(--ctf-transition);
}

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

.ctf-page-btn.active {
	background: var(--ctf-primary);
	border-color: var(--ctf-primary);
	color: white;
}

.ctf-page-btn:disabled {
	opacity: 0.3;
	cursor: not-allowed;
}

/* ==========================================================================
   No Results
   ========================================================================== */

.ctf-no-results {
	text-align: center;
	padding: 60px 20px;
	background: var(--ctf-background);
	border-radius: var(--ctf-radius);
	border: 2px dashed var(--ctf-border);
}

.ctf-no-results-icon {
	width: 64px;
	height: 64px;
	margin: 0 auto 20px;
	color: #ccc;
}

.ctf-no-results h3 {
	margin: 0 0 10px 0;
	font-size: 24px;
	color: var(--ctf-text);
}

.ctf-no-results p {
	margin: 0 0 15px 0;
	color: #666;
	font-size: 16px;
}

.ctf-no-results ul {
	list-style: none;
	padding: 0;
	margin: 0;
	display: inline-block;
	text-align: left;
}

.ctf-no-results li {
	padding: 5px 0;
	color: #666;
}

.ctf-no-results li:before {
	content: "• ";
	color: var(--ctf-primary);
	font-weight: bold;
	margin-right: 8px;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 992px) {
	.ctf-basic-search {
		grid-template-columns: 1fr 1fr;
	}

	.ctf-field-submit {
		grid-column: 1 / -1;
	}

	.ctf-trial-header {
		padding-right: 100px;
	}

	.ctf-trial-meta {
		grid-template-columns: 1fr;
	}
}

@media (max-width: 768px) {
	.ctf-search-form {
		padding: 24px;
	}

	.ctf-search-title {
		font-size: 24px;
	}

	.ctf-basic-search {
		grid-template-columns: 1fr;
	}

	.ctf-filter-row {
		grid-template-columns: 1fr;
	}

	.ctf-field-full {
		grid-column: span 1;
	}

	.ctf-trial-card {
		padding: 20px;
	}

	.ctf-trial-header {
		padding-right: 0;
		margin-bottom: 50px; /* Space for absolutely positioned badge */
	}

	.ctf-trial-status-badge {
		top: auto;
		bottom: 20px;
		right: 20px;
	}

	.ctf-trial-actions {
		flex-direction: column;
	}

	.ctf-results-header {
		flex-direction: column;
		gap: 15px;
	}

	.ctf-radio-group {
		flex-direction: column;
		gap: 10px;
	}
}

@media (max-width: 480px) {
	.ctf-search-container {
		margin: 15px;
	}

	.ctf-search-form {
		padding: 20px;
	}

	.ctf-trial-card {
		padding: 16px;
	}

	.ctf-pagination {
		flex-wrap: wrap;
	}
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
	.ctf-search-form,
	.ctf-trial-actions,
	.ctf-pagination {
		display: none;
	}

	.ctf-trial-card {
		page-break-inside: avoid;
		border: 1px solid #000;
	}
}

/* ==========================================================================
   Pagination
   ========================================================================== */

.ctf-pagination {
	margin-top: 3rem;
	padding-top: 2rem;
	border-top: 2px solid var(--ctf-border-light);
}

.ctf-pagination-info {
	text-align: center;
	color: var(--ctf-text-light);
	font-size: 0.9rem;
	margin-bottom: 1rem;
}

.ctf-pagination-links {
	display: flex;
	justify-content: center;
	align-items: center;
	gap: 0.5rem;
	flex-wrap: wrap;
}

.ctf-page-link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 2.5rem;
	height: 2.5rem;
	padding: 0 0.75rem;
	background: var(--ctf-background);
	border: 1px solid var(--ctf-border);
	border-radius: 6px;
	color: var(--ctf-text);
	text-decoration: none;
	font-size: 0.9rem;
	font-weight: 500;
	transition: all 0.2s ease;
}

.ctf-page-link:hover {
	background: var(--ctf-primary);
	color: white;
	border-color: var(--ctf-primary);
	transform: translateY(-2px);
	box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.ctf-current-page {
	background: var(--ctf-primary);
	color: white;
	border-color: var(--ctf-primary);
	cursor: default;
	pointer-events: none;
}

.ctf-pagination-ellipsis {
	color: var(--ctf-text-light);
	padding: 0 0.5rem;
}

/* ==========================================================================
   Messages
   ========================================================================== */

.ctf-message {
	position: fixed;
	top: 2rem;
	right: 2rem;
	max-width: 400px;
	padding: 1rem 1.5rem;
	background: white;
	border-radius: 8px;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
	font-size: 0.95rem;
	z-index: 10000;
	display: none;
	animation: slideIn 0.3s ease;
}

@keyframes slideIn {
	from {
		transform: translateX(100%);
		opacity: 0;
	}
	to {
		transform: translateX(0);
		opacity: 1;
	}
}

.ctf-message-success {
	border-left: 4px solid #4caf50;
	color: #2e7d32;
}

.ctf-message-error {
	border-left: 4px solid #f44336;
	color: #c62828;
}

.ctf-message-info {
	border-left: 4px solid #2196f3;
	color: #1565c0;
}

/* ==========================================================================
   No Results / Error States
   ========================================================================== */

.ctf-no-results,
.ctf-error {
	text-align: center;
	padding: 3rem 2rem;
	background: var(--ctf-background-light);
	border-radius: 12px;
	margin-top: 2rem;
}

.ctf-no-results p,
.ctf-error p {
	margin: 0.5rem 0;
	color: var(--ctf-text-light);
}

.ctf-no-results p:first-child,
.ctf-error p:first-child {
	font-size: 1.1rem;
	font-weight: 600;
	color: var(--ctf-text);
	margin-bottom: 1rem;
}

.ctf-error {
	border: 2px solid #f44336;
	background: #ffebee;
}

.ctf-error p {
	color: #c62828;
}