:root {
    /* Color variables - refined for Apple-like aesthetics */
    --bg-primary: #0a0a0a;
    --bg-secondary: #1c1c1e;
    --bg-tertiary: #2c2c2e;
    --bg-elevated: #3a3a3c;
    
    --text-primary: #ffffff;
    --text-secondary: #ebebf5;
    --text-tertiary: #aeaeb2;
    --text-muted: #8e8e93;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --divider-color: rgba(255, 255, 255, 0.05);

    --accent-color: #0a84ff;
    --accent-hover: #409cff;
    --accent-muted: rgba(10, 132, 255, 0.15);
    
    --success-color: #30d158;
    --warning-color: #ffd60a;
    --danger-color: #ff453a;
    --info-color: #64d2ff;
    
    /* Subtle secondary accent for visual interest */
    --accent-purple: #bf5af2;
    --accent-orange: #ff9f0a;
    
    /* Spacing variables - slightly refined */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
    --spacing-xxl: 3.5rem;
    
    /* Border radius - more Apple-like */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-normal: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* Layout */
    --container-max-width: 1300px;
    --header-height: 70px;
    --sidebar-width: 280px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* Base styles */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: -0.03em;
    font-weight: 700;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.02em;
}

h3 {
    font-size: 1.5rem;
    letter-spacing: -0.015em;
}

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

img {
    max-width: 100%;
    height: auto;
}

button, .btn {
    cursor: pointer;
    background: none;
    border: none;
    outline: none;
    padding: 0;
    font: inherit;
    color: inherit;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-normal);
    text-align: center;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-danger:hover {
    background-color: #ff6961;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 69, 58, 0.4);
}

.btn-block {
    width: 100%;
    display: flex;
}

/* Form elements */
.form-control {
    width: 100%;
    padding: 1.1rem 1.2rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-muted);
    outline: none;
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.8;
}

/* Layout styles */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Remove legacy grid system to avoid conflict with Tailwind's .grid utilities */

/* Header */
header {
    background-color: rgba(10, 10, 10, 0.8);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    height: var(--header-height);
    display: flex;
    align-items: center;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    letter-spacing: -0.5px;
}

.logo i {
    margin-right: var(--spacing-sm);
    font-size: 1.7rem;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin-left: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    font-size: 1.05rem;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active { /* .active class might be managed by JS */
    color: var(--text-primary);
}

.nav-links a.active:after { /* .active class might be managed by JS */
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-color);
    border-radius: 1px;
}

.mobile-toggle {
    display: none;
    font-size: 1.3rem;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

/* Main content */
main {
    flex: 1;
    width: 100%;
    position: relative;
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--divider-color);
    color: var(--text-tertiary);
    font-size: 0.95rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    list-style: none;
}

.footer-links li {
    margin-left: var(--spacing-md);
}

.footer-links a {
    color: var(--text-tertiary);
}

.footer-links a:hover {
    color: var(--text-secondary);
}

/* Cards */
.card {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    border: 1px solid var(--border-color);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--divider-color);
    background-color: rgba(0, 0, 0, 0.1);
}

.card-body {
    padding: var(--spacing-lg);
}

.card-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--divider-color);
    background-color: rgba(0, 0, 0, 0.1);
}

/* Alert component */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
    display: flex;
    align-items: center;
    transition: opacity 0.5s ease;
}

.alert:before {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    margin-right: var(--spacing-sm);
    font-size: 1.1rem;
}

.alert-success {
    background-color: rgba(48, 209, 88, 0.1);
    color: #42d77d;
}

.alert-success:before {
    content: "\f058"; /* check-circle */
    color: #42d77d;
}

.alert-warning {
    background-color: rgba(255, 214, 10, 0.1);
    color: #ffd426;
}

.alert-warning:before {
    content: "\f071"; /* exclamation-triangle */
    color: #ffd426;
}

.alert-danger {
    background-color: rgba(255, 69, 58, 0.1);
    color: #ff6961;
}

.alert-danger:before {
    content: "\f057"; /* times-circle */
    color: #ff6961;
}

.alert-info {
    background-color: rgba(100, 210, 255, 0.1);
    color: #7bd7ff;
}

.alert-info:before {
    content: "\f05a"; /* info-circle */
    color: #7bd7ff;
}

/* Container for flash messages */
#flash-messages {
    position: fixed;
    top: calc(var(--header-height) + 20px);
    right: 20px;
    width: 350px;
    z-index: 1050;
}

/* Section spacing */
.section {
    padding: var(--spacing-xxl) 0;
}

.section-header {
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.03em;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-tertiary);
    max-width: 600px;
    margin: 0 auto;
}

/* Glass Effect Components */
.glass {
    background-color: rgba(28, 28, 30, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

/* Utility classes */
.text-center {
    text-align: center;
}

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

.text-muted {
    color: var(--text-muted);
}

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

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

/* Responsive styles */
@media (max-width: 992px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .container { padding: 0 var(--spacing-md); }
    .section { padding: var(--spacing-xl) 0; }
    .section-title { font-size: 2.2rem; }
}

@media (max-width: 768px) {
    .mobile-toggle { display: block; }
    .nav-links {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background-color: var(--bg-secondary);
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-md) 0;
        transform: translateY(-150%);
        transition: transform var(--transition-normal);
        border-bottom: 1px solid var(--border-color);
        z-index: 999;
    }
    .nav-links.show {
        transform: translateY(0);
    }
    .nav-links li { margin: var(--spacing-sm) 0; }
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
    .footer-links { margin-top: var(--spacing-md); justify-content: center; }
    .footer-links li:first-child { margin-left: 0; }
    #flash-messages { width: 90%; right: 5%; }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.6rem; }
    .section-title { font-size: 1.8rem; }
    .container { padding: 0 var(--spacing-sm); }
}

/* Results container styling - Moved from search_results.html */
.results-container {
    margin: 30px auto;
    max-width: 900px;
}

.results-card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.results-card:hover {
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.15);
}

.results-header {
    margin-bottom: 20px;
}

.results-header h2 {
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 2rem;
}

.credits-display {
    text-align: right;
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.credits-value {
    font-weight: bold;
    color: var(--success-color);
}

.results-list {
    list-style-type: none;
    padding: 0;
}

.result-item {
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 15px;
    padding: 15px;
    word-wrap: break-word;
    background-color: var(--bg-tertiary);
    transition: all 0.2s ease;
}

.result-item:hover {
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.field-name {
    font-weight: 600;
    color: var(--text-tertiary);
}

.sub-list {
    margin-top: 5px;
    padding-left: 20px;
}

.new-search-btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 500;
    margin-top: 10px;
    transition: all 0.3s ease;
}

.new-search-btn:hover {
    background-color: var(--accent-hover);
    transform: scale(1.03);
    box-shadow: 0 0 10px rgba(10, 132, 255, 0.4);
    text-decoration: none;
    color: white;
}

.inline-search-btn {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 6px;
    font-size: 0.8em;
    color: var(--accent-color);
    background-color: var(--accent-muted);
    border: 1px solid rgba(10, 132, 255, 0.3);
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s ease;
    vertical-align: middle;
}

.inline-search-btn:hover {
    background-color: rgba(10, 132, 255, 0.25);
    border-color: rgba(10, 132, 255, 0.5);
    color: var(--accent-hover);
    text-decoration: none;
}

.inline-search-btn i {
    margin-right: 3px;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.spinner-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s ease-in-out infinite;
    -webkit-animation: spin 1s ease-in-out infinite;
    margin-bottom: 20px;
}

/* Note: configure server to set Cache-Control appropriately for config.js so the API URL can be updated without rebuilds. */

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

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

.loading-text {
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 500;
    text-align: center;
    margin-top: 15px;
    letter-spacing: 0.5px;
}

.loading-subtext {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    text-align: center;
    margin-top: 8px;
    max-width: 280px;
}

/* Additional custom styles can go here if Tailwind isn't sufficient for everything */

/* Example of a custom utility if needed */
.debug-border {
    border: 1px solid red;
}

/* Flash message styling (Tailwind is mostly used directly in main.js for these) */
#flash-messages .alert {
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}

#flash-messages .alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
}

#flash-messages .alert-danger {
    color: #842029;
    background-color: #f8d7da;
    border-color: #f5c2c7;
}

#flash-messages .alert-info {
    color: #055160;
    background-color: #cff4fc;
    border-color: #b6effb;
}

#flash-messages .alert-warning {
    color: #664d03;
    background-color: #fff3cd;
    border-color: #ffecb5;
}