:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
    background-attachment: fixed;
}

.app-container {
    width: 100%;
    max-width: 1400px;
    padding: 1rem;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

header {
    text-align: center;
    animation: fadeInDown 0.8s ease-out;
}

h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    background: linear-gradient(135deg, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 300;
}

.main-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.left-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.right-panel {
    display: flex;
    flex-direction: column;
}

@media (max-width: 768px) {
    .main-layout {
        grid-template-columns: 1fr;
    }
}

.inspiration-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.inspiration-note a {
    color: var(--accent-color);
    text-decoration: none;
}

.inspiration-note a:hover {
    text-decoration: underline;
}

.tree-container {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    min-height: 500px;
    height: 100%;
    backdrop-filter: blur(10px);
    overflow-x: auto;
    overflow-y: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* D3 Tree Styles */
.node circle {
    fill: var(--bg-primary);
    stroke: var(--accent-color);
    stroke-width: 3px;
}
.node text {
    font-size: 14px;
    font-weight: 600;
    fill: var(--text-primary);
    text-shadow: 0 1px 3px rgba(0,0,0,0.8);
}
.link {
    fill: none;
    stroke: var(--glass-border);
    stroke-width: 2px;
}

.guesses-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 300px;
}

.guess-row {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(10px);
    animation: slideIn 0.3s ease-out forwards;
    transform: translateX(-20px);
    opacity: 0;
}

.guess-name {
    font-weight: 600;
    font-size: 1.1rem;
    flex: 1;
}

.guess-feedback {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.feedback-badge {
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
}

.feedback-time {
    color: var(--accent-color);
}

.feedback-rank {
    color: var(--warning-color);
}

.match-exact {
    background: rgba(16, 185, 129, 0.2);
    border-color: var(--success-color);
    color: var(--success-color);
}

.input-section {
    display: flex;
    gap: 0.5rem;
    position: relative;
    margin-top: auto;
}

.autocomplete-wrapper {
    flex: 1;
    position: relative;
}

input[type="text"] {
    width: 100%;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input[type="text"]:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.autocomplete-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 10;
    list-style: none;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    display: none;
}

.autocomplete-list.active {
    display: block;
    animation: fadeIn 0.2s ease-out;
}

.autocomplete-item {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover, .autocomplete-item.selected {
    background-color: var(--accent-color);
    color: white;
}

.primary-btn {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    border: none;
    background: var(--accent-color);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.1s, background-color 0.3s;
}

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

.primary-btn:active {
    transform: scale(0.95);
}

.primary-btn:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    backdrop-filter: blur(5px);
}

.modal.hidden {
    display: none;
}

.glass-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 16px;
    text-align: center;
    max-width: 90%;
    width: 400px;
    animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.glass-panel h2 {
    color: var(--success-color);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.glass-panel p {
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.hidden {
    display: none !important;
}

.wiki-tooltip {
    position: absolute;
    background: var(--bg-secondary);
    border: 1px solid var(--accent-color);
    border-radius: 8px;
    padding: 1rem;
    width: 300px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    z-index: 1000;
    pointer-events: none; /* so it doesn't interrupt mouse interactions */
    transition: opacity 0.2s;
}

.wiki-tooltip.hidden {
    opacity: 0;
    pointer-events: none;
    display: none;
}

.wiki-title {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.25rem;
}

.wiki-title a {
    color: var(--accent-color);
    text-decoration: none;
}

.wiki-title a:hover {
    text-decoration: underline;
}

.wiki-snippet {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.taxa-link {
    cursor: pointer;
    text-decoration: underline;
    text-decoration-color: var(--accent-color);
    text-underline-offset: 3px;
    transition: color 0.2s;
}

.taxa-link:hover {
    color: var(--accent-color) !important;
}

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes popIn {
    from { opacity: 0; transform: scale(0.8); }
    to { opacity: 1; transform: scale(1); }
}

/* Scrollbar styling for autocomplete */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
    border-radius: 0 12px 12px 0;
}
::-webkit-scrollbar-thumb {
    background: var(--text-secondary);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}