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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    overflow: hidden;
    background-color: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
}

.hidden {
    display: none !important;
}

/* Loading spinner */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: var(--tg-theme-bg-color, #ffffff);
    z-index: 2000;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--tg-theme-button-color, #0074D9);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading p {
    margin-top: 16px;
    font-size: 16px;
    color: var(--tg-theme-hint-color, #999);
}

/* Controls */
.controls {
    position: fixed;
    top: 16px;
    left: 16px;
    right: 16px;
    display: flex;
    gap: 8px;
    z-index: 100;
    background: var(--tg-theme-bg-color, #fff);
    padding: 8px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.control-select {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--tg-theme-hint-color, #ccc);
    border-radius: 8px;
    background: var(--tg-theme-bg-color, #fff);
    color: var(--tg-theme-text-color, #000);
    font-size: 14px;
    outline: none;
}

.control-button {
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    background: var(--tg-theme-button-color, #0074D9);
    color: var(--tg-theme-button-text-color, #fff);
    font-size: 14px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.control-button:active {
    opacity: 0.8;
}

/* Graph container */
#cy {
    width: 100%;
    height: 100vh;
    background-color: var(--tg-theme-secondary-bg-color, #f4f4f5);
}

/* Statistics */
.stats {
    position: fixed;
    bottom: 16px;
    left: 16px;
    display: flex;
    gap: 12px;
    padding: 8px 16px;
    background: var(--tg-theme-bg-color, #fff);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    font-size: 12px;
    color: var(--tg-theme-hint-color, #666);
    z-index: 100;
}

.stats span {
    font-weight: 500;
}

/* Move detail card */
.move-card {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    animation: fadeIn 0.3s;
}

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

.card-overlay {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    cursor: pointer;
}

.card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--tg-theme-bg-color, #fff);
    border-radius: 16px 16px 0 0;
    padding: 20px;
    max-height: 80vh;
    overflow-y: auto;
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

.card-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: none;
    border: none;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: var(--tg-theme-hint-color, #999);
    z-index: 10;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-action {
    width: 100%;
    margin-bottom: 16px;
    text-align: center;
}

.bot-link-button {
    display: inline-block;
    padding: 16px 32px;
    background: var(--tg-theme-button-color, #0074D9);
    color: var(--tg-theme-button-text-color, #ffffff);
    border-radius: 12px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: opacity 0.2s;
}

.bot-link-button:hover {
    opacity: 0.9;
}

.bot-link-button:active {
    opacity: 0.7;
}

.no-media {
    padding: 60px 20px;
    text-align: center;
    font-size: 48px;
    color: var(--tg-theme-hint-color, #ccc);
}

.card-name {
    margin: 0 0 12px 0;
    font-size: 24px;
    font-weight: 600;
    color: var(--tg-theme-text-color, #000);
    padding-right: 40px;
}

.card-description {
    margin: 0 0 20px 0;
    font-size: 15px;
    line-height: 1.5;
    color: var(--tg-theme-hint-color, #666);
}

.card-meta {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-section {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.card-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--tg-theme-hint-color, #999);
    text-transform: uppercase;
}

.card-value {
    font-size: 14px;
    color: var(--tg-theme-text-color, #000);
}

.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    width: fit-content;
}

.status-NEW {
    background: #aaa;
    color: #fff;
}

.status-LEARNING {
    background: #FFDC00;
    color: #000;
}

.status-IN_VOCAB {
    background: #0074D9;
    color: #fff;
}

.status-MASTERED {
    background: #2ECC40;
    color: #fff;
}

/* Error */
.error {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--tg-theme-bg-color, #fff);
    z-index: 2000;
}

.error-content {
    max-width: 300px;
    padding: 24px;
    text-align: center;
}

.error-content h3 {
    margin-bottom: 12px;
    font-size: 20px;
}

.error-content p {
    margin-bottom: 20px;
    color: var(--tg-theme-hint-color, #666);
}

.error-button {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    background: var(--tg-theme-button-color, #0074D9);
    color: var(--tg-theme-button-text-color, #fff);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}

/* Scrollbar for card */
.card-content::-webkit-scrollbar {
    width: 4px;
}

.card-content::-webkit-scrollbar-track {
    background: transparent;
}

.card-content::-webkit-scrollbar-thumb {
    background: var(--tg-theme-hint-color, #ccc);
    border-radius: 2px;
}