/* ============================================
   Fish Search - Styled to match growAG.com exactly
   ============================================ */

/* CSS Variables - growAG color palette */
:root {
    --navy: #1e3a5f;
    --navy-dark: #152a45;
    --secondary: #2270A0;
    --secondary-light: #e8f4fa;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #717171;
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gradient: linear-gradient(135deg, #2270A0 0%, #1a5a80 100%);
    --border-color: #e5e5e5;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: all 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================================
   Skip Link (Accessibility)
   ============================================ */
.skip-link {
    position: absolute;
    left: 1rem;
    top: 1rem;
    z-index: 100;
    padding: 1rem;
    background: var(--secondary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    transform: translateY(-200%);
    transition: transform 0.3s;
}

.skip-link:focus {
    transform: translateY(0);
}

/* ============================================
   Header / Navigation - growAG exact match
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 66px;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-svg {
    height: 34px;
    width: auto;
    color: var(--navy);
}

/* Main Navigation */
.main-nav {
    display: flex;
    align-items: center;
    margin-left: 2rem;
    flex: 1;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 1rem;
    color: var(--navy);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.125rem;
    font-family: var(--font-heading);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
    height: 66px;
    box-sizing: border-box;
}

.nav-link:hover {
    color: var(--navy);
    border-bottom-color: var(--secondary);
}

/* Dropdown arrow for nav items */
.nav-link::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--secondary);
    margin-left: 4px;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 1rem;
    color: var(--navy);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.125rem;
    font-family: var(--font-heading);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
    height: 66px;
    box-sizing: border-box;
    background: transparent;
    border: none;
    cursor: pointer;
}

.search-btn:hover {
    color: var(--navy);
    border-bottom-color: var(--secondary);
}

.login-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 1rem;
    color: var(--navy);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.125rem;
    font-family: var(--font-heading);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
    height: 66px;
    box-sizing: border-box;
}

.login-link:hover {
    color: var(--navy);
    border-bottom-color: var(--secondary);
}

.signup-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 44px;
    padding: 0 1.5rem;
    background: var(--secondary);
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    font-family: var(--font-heading);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.signup-btn:hover {
    background: var(--secondary);
    opacity: 0.9;
}

/* Mobile menu button - hidden on desktop */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--navy);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
}

/* ============================================
   Search Hero Section
   ============================================ */
.search-hero {
    background: var(--bg-gradient);
    padding: 80px 24px;
    text-align: center;
}

.search-container {
    max-width: 720px;
    margin: 0 auto;
}

.search-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--bg-white);
    margin-bottom: 12px;
    font-family: var(--font-heading);
}

.search-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
}

/* Search Form */
.search-form {
    width: 100%;
}

.search-box {
    position: relative;
    background: var(--bg-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    padding: 8px 8px 8px 20px;
    margin-bottom: 20px;
}

.search-icon {
    width: 24px;
    height: 24px;
    color: var(--text-light);
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.125rem;
    padding: 12px 16px;
    background: transparent;
    color: var(--text-dark);
    font-family: var(--font-body);
}

.search-input::placeholder {
    color: var(--text-light);
}

.clear-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.clear-btn:hover {
    background: var(--bg-light);
}

.clear-btn svg {
    width: 20px;
    height: 20px;
    color: var(--text-light);
}

/* Search Actions */
.search-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 24px;
}

.btn {
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-heading);
}

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

.btn-primary:hover {
    background: var(--bg-light);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--bg-white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Results Count Selector */
.results-selector {
    display: flex;
    align-items: center;
    gap: 8px;
}

.results-selector label {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.9rem;
    font-weight: 500;
}

.results-dropdown {
    padding: 10px 14px;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 2px solid rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.2);
    color: var(--bg-white);
    cursor: pointer;
    font-family: var(--font-heading);
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='white' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 32px;
}

.results-dropdown:hover {
    background: rgba(255, 255, 255, 0.3);
}

.results-dropdown:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.7);
}

.results-dropdown option {
    background: var(--secondary);
    color: white;
}

/* Example Chips */
.search-examples {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    align-items: center;
}

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

.example-chip {
    background: rgba(255, 255, 255, 0.15);
    color: var(--bg-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 6px 14px;
    font-size: 0.875rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-body);
}

.example-chip:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ============================================
   Results Section
   ============================================ */
.results-section {
    padding: 40px 24px 80px;
    background: var(--bg-light);
}

.results-container {
    max-width: 900px;
    margin: 0 auto;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.results-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-family: var(--font-heading);
}

.results-count {
    color: var(--text-light);
    font-size: 0.95rem;
}

.results-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Result Card */
.result-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.result-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.result-org {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.result-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
    line-height: 1.4;
    font-family: var(--font-heading);
}

.result-abstract {
    color: var(--text-medium);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.result-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.result-tag {
    background: var(--secondary-light);
    color: var(--secondary);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    border: none;
    font-family: var(--font-body);
}

/* Clickable tags in search results */
button.result-tag.tag-clickable {
    cursor: pointer;
    transition: var(--transition);
}

button.result-tag.tag-clickable:hover {
    background: var(--secondary);
    color: white;
}

/* Organization Link */
.result-org-link {
    color: var(--secondary);
    text-decoration: none;
    transition: var(--transition);
}

.result-org-link:hover {
    text-decoration: underline;
}

/* Result Metadata (researcher, duration) */
.result-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 0.875rem;
    color: var(--text-medium);
}

.result-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.result-meta-item strong {
    color: var(--text-light);
    font-weight: 500;
}

/* Project Links */
.result-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.result-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 6px 12px;
    background: var(--secondary-light);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.result-link:hover {
    background: var(--secondary);
    color: white;
}

.result-link::before {
    content: '→';
    font-size: 0.75rem;
}

/* ============================================
   Loading State
   ============================================ */
.loading {
    text-align: center;
    padding: 60px 24px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border-color);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

.loading p {
    color: var(--text-light);
}

/* ============================================
   Error State
   ============================================ */
.error-message {
    max-width: 600px;
    margin: 40px auto;
    padding: 24px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-md);
    text-align: center;
    color: #dc2626;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-gradient);
    padding: 24px;
    text-align: center;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

/* ============================================
   Utility Classes
   ============================================ */
.hidden {
    display: none !important;
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .main-nav {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 0 1rem;
    }

    .search-hero {
        padding: 48px 16px;
    }

    .search-title {
        font-size: 1.75rem;
    }

    .search-subtitle {
        font-size: 1rem;
    }

    .search-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .results-section {
        padding: 24px 16px 60px;
    }

    .result-card {
        padding: 16px;
    }
}