/* ========================================
   ONCERA - Brand Identity Stylesheet
   Colors: Teal (primary), Gold (accent), Dark Teal (text), Cream (background)
   Fonts: Lora (serif for logo), Inter (sans-serif for body)
   Design: Organic, Professional, Trustworthy
   ======================================== */

:root {
    /* Brand Colors */
    --color-teal: #008B8B;
    --color-teal-dark: #006666;
    --color-teal-light: #20B2AA;
    --color-gold: #D4AF37;
    --color-gold-light: #E5C158;
    --color-text-dark: #1a3a3a;
    --color-text-medium: #2d5a5a;
    --color-cream: #F5F5DC;
    --color-cream-light: #FAFAF5;
    --color-sand: #F0E4CF;
    --color-white: #FFFFFF;
    
    /* Typography */
    --font-serif: 'Lora', Georgia, serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius (Organic) */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-organic: 24px 8px 24px 8px;
}

/* ========================================
   Base Styles
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-dark);
    background: var(--color-sand);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
}

/* ========================================
   Header & Logo
   ======================================== */

.header {
    background: var(--color-white);
    border-bottom: 3px solid var(--color-teal);
    box-shadow: 0 2px 8px rgba(0, 139, 139, 0.1);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-image {
    height: 80px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.tagline {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 0.25rem;
}

.auth-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.center-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.85rem;
    color: var(--color-text-medium);
}

.center-label {
    font-weight: 600;
    color: var(--color-teal);
}

.center-switch-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.center-switch-wrap select {
    padding: 0.25rem 0.45rem;
    border: 1px solid rgba(0, 139, 139, 0.4);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.85rem;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.user-name {
    font-weight: 500;
    color: var(--color-text-medium);
}

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

.main-container {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-md);
    background: var(--color-white);
    margin: var(--spacing-lg) auto;
    border-radius: var(--radius-organic);
    box-shadow: 0 4px 20px rgba(0, 139, 139, 0.08);
    max-width: 1200px;
}

.main-tagline {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: center;
    margin-top: var(--spacing-xl);
    margin-bottom: 0;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-cream);
}

/* ========================================
   Tabs
   ======================================== */

.tabs {
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: 2px solid var(--color-cream);
    margin-bottom: var(--spacing-lg);
}

.tab-button {
    background: transparent;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text-medium);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    position: relative;
}

.tab-button:hover {
    color: var(--color-teal);
    background: var(--color-cream-light);
}

.tab-button.active {
    color: var(--color-teal);
    border-bottom-color: var(--color-teal);
    font-weight: 600;
}

.tab-icon {
    font-size: 1.2em;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-header {
    margin-bottom: var(--spacing-lg);
}

.tab-header h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    color: var(--color-text-medium);
    font-size: 1rem;
}

/* ========================================
   Forms
   ======================================== */

.search-form,
.trial-form {
    margin-bottom: var(--spacing-xl);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 500;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid rgba(0, 139, 139, 0.4);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text-dark);
    background: rgba(255, 255, 255, 0.95);
    transition: all 0.3s ease;
    box-shadow: inset 0 0 0 1px rgba(0, 139, 139, 0.08);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-teal);
    box-shadow: 0 0 0 3px rgba(0, 139, 139, 0.15);
}

.form-group input[readonly] {
    background: var(--color-cream-light);
    cursor: not-allowed;
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group-inline {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-end;
}

.input-large {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--color-cream);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--color-teal-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 139, 139, 0.3);
}

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

.btn-secondary:hover {
    background: var(--color-cream-light);
}

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-icon {
    font-size: 1.2em;
}

.form-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

/* ========================================
   Trial Cards & Results
   ======================================== */

.results-container {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-cream);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.results-header h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text-dark);
}

.trials-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.trial-card {
    background: var(--color-white);
    border: 2px solid var(--color-cream);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.trial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--color-teal);
}

.trial-card:hover {
    border-color: var(--color-teal);
    box-shadow: 0 4px 16px rgba(0, 139, 139, 0.15);
    transform: translateY(-2px);
}

.trial-card h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-teal);
    margin-bottom: var(--spacing-xs);
}

.trial-card .trial-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin: var(--spacing-sm) 0;
    font-size: 0.9rem;
    color: var(--color-text-medium);
}

.trial-card .trial-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.trial-card .trial-description {
    margin: var(--spacing-sm) 0;
    color: var(--color-text-dark);
    line-height: 1.6;
}

.trial-card .trial-contact {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-cream);
    font-size: 0.9rem;
}

.trial-card .trial-contact strong {
    color: var(--color-text-dark);
}

.trial-card .status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: var(--spacing-sm);
}

.status-badge.open {
    background: rgba(0, 139, 139, 0.1);
    color: var(--color-teal);
}

.status-badge.closed {
    background: rgba(128, 128, 128, 0.1);
    color: #666;
}

.status-badge.draft {
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-gold);
}

.trial-details-card {
    background: var(--color-cream-light);
    border: 2px solid var(--color-teal);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.trial-details-card h3 {
    font-family: var(--font-serif);
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
}

.trial-info {
    color: var(--color-text-dark);
    line-height: 1.8;
}

.trial-info pre {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    font-size: 0.9rem;
    border: 1px solid var(--color-cream);
}

/* ========================================
   PI Section
   ======================================== */

.pi-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--color-cream);
}

.pi-section:last-child {
    border-bottom: none;
}

.pi-section h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
}

.fetch-form {
    margin-bottom: var(--spacing-md);
}

.auth-required {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-cream-light);
    border-radius: var(--radius-md);
    border: 2px dashed var(--color-teal);
}

.auth-message h3 {
    font-family: var(--font-serif);
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-sm);
}

.auth-message p {
    color: var(--color-text-medium);
    margin-bottom: var(--spacing-md);
}

.welcome-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.welcome-actions .btn {
    justify-content: center;
}

.auth-note,
.access-email-fallback {
    font-size: 0.95rem;
}

.access-email {
    display: inline-block;
    user-select: all;
    font-family: var(--font-sans);
    font-weight: 600;
    color: var(--color-text-dark);
    word-break: break-all;
}

/* ========================================
   Loaders
   ======================================== */

.loader {
    text-align: center;
    padding: var(--spacing-xl);
}

.loader-small {
    text-align: center;
    padding: var(--spacing-md);
    color: var(--color-text-medium);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-cream);
    border-top-color: var(--color-teal);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-sm);
}

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

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--color-text-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer p {
    margin: var(--spacing-xs) 0;
}

.footer-note {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-link {
    color: var(--color-gold);
    margin-left: 0.5rem;
    text-decoration: none;
    font-weight: 500;
}

.footer-link:hover {
    color: var(--color-gold-light);
    text-decoration: underline;
}

.footer-separator {
    color: rgba(255, 255, 255, 0.5);
    margin: 0 0.35rem;
}

.footer sup {
    color: var(--color-gold);
}

.powered-by {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.powered-by-text {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    margin-right: 0.25rem;
}

.powered-by-link {
    display: inline-flex;
    align-items: center;
    opacity: 0.7;
    transition: opacity 0.3s ease, transform 0.2s ease;
}

.powered-by-link:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.powered-by-icon {
    width: 20px;
    height: 20px;
    display: block;
}

/* ========================================
   Terms Page
   ======================================== */

.terms-page .main-container {
    max-width: 900px;
}

.terms-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-organic);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
    line-height: 1.75;
}

.terms-card h2 {
    font-family: var(--font-serif);
    margin-bottom: var(--spacing-sm);
}

.terms-card h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-medium);
}

.terms-card ul {
    padding-left: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.terms-card table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.terms-card table th,
.terms-card table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid rgba(0, 139, 139, 0.2);
}

.terms-card table thead tr {
    background: var(--color-cream-light);
    border-bottom: 2px solid var(--color-teal);
}

.terms-card table tbody tr:hover {
    background: rgba(0, 139, 139, 0.05);
}

.terms-card a {
    color: var(--color-teal);
    text-decoration: none;
}

.terms-card a:hover {
    text-decoration: underline;
}

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

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .header .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .logo {
        font-size: 2rem;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .tab-button {
        width: 100%;
        justify-content: center;
    }
    
    .form-group-inline {
        flex-direction: column;
        align-items: stretch;
    }

    .welcome-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .welcome-actions .btn {
        width: 100%;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

/* ========================================
   Utility Classes
   ======================================== */

.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mb-md {
    margin-bottom: var(--spacing-md);
}

.error-message {
    background: #fee;
    color: #c33;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid #fcc;
    margin: var(--spacing-sm) 0;
}

.success-message {
    background: #efe;
    color: #3c3;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid #cfc;
    margin: var(--spacing-sm) 0;
}


/* Tab labels can be multi-word; wrap tabs to a new row instead of squishing (desktop/tablet). */
.tabs { flex-wrap: wrap; }
.tab-button { white-space: nowrap; }