/* ================== BEM Checker Page Styles ================== */

/* ===== Main Layout ===== */
.bem-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-top: 30px;
}

@media (max-width: 900px) {
    .bem-layout {
        grid-template-columns: 1fr;
    }
}

/* ===== Panel Styles ===== */
.bem-input-panel,
.bem-results-panel {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 4px 20px rgba(45, 52, 54, 0.08);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.panel-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}

.panel-actions {
    display: flex;
    gap: 10px;
}

.btn-sample,
.btn-clear {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-main);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-sample:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-clear:hover {
    border-color: #e74c3c;
    color: #e74c3c;
}

.btn-copy-results {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 2px solid var(--accent-primary);
    border-radius: 8px;
    background: transparent;
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* ===== Input Wrapper ===== */
.input-wrapper {
    margin-bottom: 20px;
}

.class-input {
    width: 100%;
    min-height: 280px;
    padding: 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: linear-gradient(145deg, #f8f9fa, #f1f3f5);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--text-primary);
    resize: vertical;
    transition: all 0.2s;
}

.class-input:hover {
    border-color: rgba(99, 102, 241, 0.4);
}

.class-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.class-input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.input-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Statistics Bar ===== */
.stats-bar {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-main);
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.stat-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px;
    border-radius: 10px;
    background: var(--bg-card);
    transition: all 0.2s;
}

.stat-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.8rem;
    font-weight: 800;
}

.stat-item--total .stat-value {
    color: var(--accent-primary);
}

.stat-item--valid .stat-value {
    color: #27ae60;
}

.stat-item--invalid .stat-value {
    color: #e74c3c;
}

/* ===== Results Container ===== */
.results-container {
    min-height: 350px;
    max-height: 500px;
    overflow-y: auto;
    padding: 4px;
}

.results-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    text-align: center;
}

.results-empty__icon {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.results-empty__text {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ===== Result Item ===== */
.result-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    margin-bottom: 10px;
    border-radius: 10px;
    border: 2px solid var(--border-color);
    background: var(--bg-main);
    transition: all 0.2s;
}

.result-item:hover {
    transform: translateX(4px);
}

.result-item--valid {
    border-color: rgba(39, 174, 96, 0.3);
    background: rgba(39, 174, 96, 0.05);
}

.result-item--valid:hover {
    border-color: rgba(39, 174, 96, 0.5);
}

.result-item--invalid {
    border-color: rgba(231, 76, 60, 0.3);
    background: rgba(231, 76, 60, 0.05);
}

.result-item--invalid:hover {
    border-color: rgba(231, 76, 60, 0.5);
}

.result-item__icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.result-item__content {
    flex: 1;
    min-width: 0;
}

.result-item__class {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    word-break: break-all;
    margin-bottom: 4px;
}

.result-item--valid .result-item__class {
    color: #27ae60;
}

.result-item--invalid .result-item__class {
    color: #e74c3c;
}

.result-item__parts {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
}

.result-part {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.result-part--block {
    background: rgba(52, 152, 219, 0.15);
    color: #2980b9;
}

.result-part--element {
    background: rgba(155, 89, 182, 0.15);
    color: #8e44ad;
}

.result-part--modifier {
    background: rgba(230, 126, 34, 0.15);
    color: #d35400;
}

.result-item__error {
    font-size: 0.85rem;
    color: #e74c3c;
    margin-top: 6px;
    line-height: 1.4;
}

/* ===== BEM Guide Section ===== */
.bem-guide {
    margin-top: 40px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(45, 52, 54, 0.08);
}

.bem-guide__title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 24px 0;
}

.bem-guide__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

@media (max-width: 900px) {
    .bem-guide__grid {
        grid-template-columns: 1fr;
    }
}

/* ===== BEM Cards ===== */
.bem-card {
    padding: 24px;
    border-radius: 14px;
    background: #f9f9f9;
    transition: all 0.2s;
}

.bem-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.1);
}

.bem-card--block {
    border-color: rgba(52, 152, 219, 0.3);
}

.bem-card--block:hover {
    border-color: #3498db;
}

.bem-card--element {
    border-color: rgba(155, 89, 182, 0.3);
}

.bem-card--element:hover {
    border-color: #9b59b6;
}

.bem-card--modifier {
    border-color: rgba(230, 126, 34, 0.3);
}

.bem-card--modifier:hover {
    border-color: #e67e22;
}

.bem-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.bem-card__icon {
    font-size: 1.8rem;
}

.bem-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.bem-card__desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0 0 16px 0;
    line-height: 1.5;
}

.bem-card__examples {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.bem-card__examples code {
    padding: 6px 12px;
    background: var(--bg-card);
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-primary);
    border: 1px solid var(--border-color);
}

.bem-card__rule {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.bem-card__rule code {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
}

/* ===== Common Errors Section ===== */
.bem-errors {
    background: var(--bg-main);
    border-radius: 12px;
    padding: 24px;
    border: 2px solid var(--border-color);
}

.bem-errors__title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 20px 0;
}

.bem-errors__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

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

.bem-error-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--bg-card);
    border-radius: 10px;
    flex-wrap: wrap;
}

.bem-error-item__bad {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
    padding: 6px 10px;
    border-radius: 6px;
    text-decoration: line-through;
}

.bem-error-item__arrow {
    color: var(--text-muted);
    font-size: 1.2rem;
}

.bem-error-item__good {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: #27ae60;
    background: rgba(39, 174, 96, 0.1);
    padding: 6px 10px;
    border-radius: 6px;
}

.bem-error-item__reason {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
}

@media (max-width: 500px) {
    .bem-error-item__reason {
        width: 100%;
        margin-left: 0;
        margin-top: 8px;
    }
}

/* ===== Info Section ===== */
.info-section {
    margin-top: 40px;
    padding: 30px;
    background: var(--bg-card);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(45, 52, 54, 0.08);
}

.info-section__title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 1024px) {
    .info-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .info-cards {
        grid-template-columns: 1fr;
    }
}

.info-card {
    background: var(--bg-main);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.2s;
}

.info-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.info-card__icon {
    font-size: 2rem;
    margin-bottom: 12px;
}

.info-card__title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.info-card__desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--text-primary);
    color: white;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

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

/* ===== Custom Scrollbar for Results ===== */
.results-container::-webkit-scrollbar {
    width: 8px;
}

.results-container::-webkit-scrollbar-track {
    background: var(--bg-main);
    border-radius: 4px;
}

.results-container::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.results-container::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* ===== Dark Mode ===== */
[data-theme="dark"] .class-input {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .class-input:hover {
    border-color: rgba(99, 102, 241, 0.4);
}

[data-theme="dark"] .class-input:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-primary);
}

[data-theme="dark"] .bem-card {
    background: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .bem-card__examples code {
    background: rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .result-item {
    background: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .info-card {
    background: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .bem-errors {
    background: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .bem-error-item {
    background: rgba(255, 255, 255, 0.03);
}

[data-theme="dark"] .stats-bar {
    background: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .stat-item {
    background: rgba(255, 255, 255, 0.03);
}