:root {
    --bg-dark: #0F0A1A;
    --bg-panel: #1A1429;
    --bg-card: #251D3A;
    --bg-card-hover: #2D2446;
    
    --primary: #7C3AED;
    --primary-hover: #6D28D9;
    --primary-light: rgba(124, 58, 237, 0.2);
    
    --accent: #F59E0B;
    
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    
    --border: #33274D;
    
    --radius: 12px;
    --radius-sm: 8px;
    
    --font-stack: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-stack);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.5;
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background-color: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--primary);
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.header-actions {
    display: flex;
    gap: 0.5rem;
}

/* Main Layout */
main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar Controls */
.controls-panel {
    width: 380px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.control-group {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.control-group:last-child {
    border-bottom: none;
}

.control-group.half {
    padding: 0.5rem;
    border-bottom: none;
}

.control-group label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.type-toggle {
    display: flex;
    background-color: var(--bg-dark);
    border-radius: var(--radius-sm);
    padding: 0.25rem;
    gap: 0.25rem;
}

.type-toggle .type-btn {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.type-toggle .type-btn:hover {
    color: var(--text-main);
}

.type-toggle .type-btn.active {
    background-color: var(--bg-card);
    color: var(--text-main);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Inputs & Selects */
.input-with-icon {
    display: flex;
    align-items: center;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0 0.5rem;
    transition: border-color 0.2s;
}

.input-with-icon:focus-within {
    border-color: var(--primary);
}

.input-with-icon i {
    color: var(--text-muted);
    width: 18px;
    height: 18px;
}

.input-with-icon input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 0.75rem 0.5rem;
    font-family: var(--font-stack);
    font-size: 0.875rem;
    outline: none;
    color-scheme: dark; /* For date picker icon */
}

.custom-select {
    width: 100%;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.6rem 0.75rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-stack);
    font-size: 0.875rem;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    transition: border-color 0.2s;
}

.custom-select:focus {
    border-color: var(--primary);
}

.relative-inputs {
    display: flex;
    gap: 0.5rem;
}
.relative-inputs .input-with-icon {
    flex: 1;
}
.relative-inputs select {
    flex: 1;
}

.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
}
.flex-row {
    display: flex;
    padding: 0 1rem;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1rem 1.5rem;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 700;
}
.divider::before, .divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border);
}
.divider span {
    padding: 0 0.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-main) !important;
    text-transform: none !important;
    font-weight: 400 !important;
}

/* Code Preview */
.code-preview {
    margin: 1.5rem;
    background-color: #000;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    overflow: hidden;
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.code-preview pre {
    padding: 1rem;
    font-family: 'Fira Code', monospace;
    font-size: 0.8125rem;
    color: #A78BFA;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

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

.btn.small {
    padding: 0.25rem 0.5rem;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    border-radius: 4px;
    transition: color 0.2s, background-color 0.2s;
}

.icon-btn:hover {
    color: var(--text-main);
    background-color: rgba(255,255,255,0.1);
}

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

/* Results Panel */
.results-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-dark);
    position: relative;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-dark);
    z-index: 5;
}

.results-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge {
    background-color: var(--primary-light);
    color: var(--primary);
    padding: 0.1rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
}

.results-controls {
    display: flex;
    gap: 1rem;
}

.search-box {
    display: flex;
    align-items: center;
    background-color: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0 0.75rem;
}

.search-box i {
    width: 16px; height: 16px;
    color: var(--text-muted);
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 0.5rem;
    outline: none;
    font-size: 0.875rem;
}

.custom-select.minimal {
    width: auto;
    background-color: var(--bg-panel);
    border-color: var(--border);
}

.grid-container {
    flex: 1;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
    overflow-y: auto;
    align-content: start;
}

/* Card */
.locale-card {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
    position: relative;
    overflow: hidden;
}

.locale-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    border-color: var(--primary-light);
}

/* Glassmorphism accent */
.locale-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.2s;
}
.locale-card:hover::before {
    opacity: 1;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.locale-ident {
    display: flex;
    flex-direction: column;
}

.locale-code {
    font-family: 'Fira Code', monospace;
    font-size: 0.75rem;
    color: var(--primary);
    background: var(--primary-light);
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    align-self: flex-start;
    margin-bottom: 0.25rem;
}

.locale-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
}
.locale-region {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.card-content {
    background: var(--bg-dark);
    padding: 1rem;
    border-radius: var(--radius-sm);
    flex: 1;
    display: flex;
    align-items: center;
    border: 1px solid rgba(255,255,255,0.02);
}

.formatted-result {
    font-size: 1.1rem;
    font-weight: 500;
    color: #fff;
    word-break: break-word;
}

.card-actions {
    display: flex;
    justify-content: flex-end;
}

/* Utils */
.hidden {
    display: none !important;
}

.mt-2 {
    margin-top: 1rem;
}

/* Scrollbar styling */
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background-color: rgba(255,255,255,0.1);
    border-radius: 10px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255,255,255,0.2);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border: 1px solid var(--border);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Highlight Differences */
.similarity-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.7rem;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
    background: rgba(255,255,255,0.1);
    color: var(--text-muted);
}
.similarity-high { color: #2ED573; background: rgba(46, 213, 115, 0.1); }
.similarity-med { color: var(--accent); background: rgba(245, 158, 11, 0.1); }
.similarity-low { color: #FF4757; background: rgba(255, 71, 87, 0.1); }