/* GOAI Site Analyzer, Styles */
:root {
    --gsa-primary: #1b2028;
    --gsa-primary-hover: #252c37;
    --gsa-success: #16a34a;
    --gsa-warning: #d97706;
    --gsa-danger: #dc2626;
    --gsa-info: #6b7280;
    --gsa-bg: #f1f7f5;
    --gsa-card-bg: #ffffff;
    --gsa-border: #e2e8f0;
    --gsa-text: #1e293b;
    --gsa-text-light: #64748b;
    --gsa-radius: 12px;
    --gsa-radius-sm: 8px;
    --gsa-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
    --gsa-shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
}

.gsa-analyzer {
    max-width: 1200px;
    margin: 0 auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #1b2028;
    line-height: 1.6;
}

.gsa-analyzer * {
    box-sizing: border-box;
}

/* Form */
.gsa-form-wrapper {
    background: #f1f7f5;
    border-radius: var(--gsa-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.gsa-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    color: var(--gsa-text);
}

.gsa-subtitle {
    color: var(--gsa-text-light);
    margin: 0 0 1.5rem;
    font-size: 1rem;
}

.gsa-input-group {
    display: flex;
    gap: 0.75rem;
    max-width: 600px;
    margin: 0 auto;
}

.gsa-input {
    flex: 1;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--gsa-border);
    border-radius: var(--gsa-radius-sm);
    outline: none;
    transition: border-color 0.2s;
    background: var(--gsa-bg);
    color: var(--gsa-text);
}

.gsa-input:focus {
    border-color: var(--gsa-primary);
}

.gsa-button {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    background: var(--gsa-primary);
    color: #fff;
    border: none;
    border-radius: var(--gsa-radius-sm);
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.gsa-button:hover {
    background: #252c37;
}

.gsa-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.gsa-button-loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Spinner */
.gsa-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2.5px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: gsa-spin 0.7s linear infinite;
}

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

/* Error */
.gsa-error {
    color: var(--gsa-danger);
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--gsa-radius-sm);
    padding: 0.75rem 1rem;
    margin-top: 1rem;
    font-size: 0.9rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Results */
.gsa-results {
    background: var(--gsa-card-bg);
    border-radius: var(--gsa-radius);
    box-shadow: var(--gsa-shadow-lg);
    overflow: hidden;
}

.gsa-results-header {
    padding: 1.5rem 2rem 1rem;
    border-bottom: 1px solid var(--gsa-border);
}

.gsa-results-header h3 {
    margin: 0 0 0.25rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.gsa-analyzed-url {
    margin: 0;
    color: var(--gsa-primary);
    font-size: 0.9rem;
    word-break: break-all;
}

/* Tabs */
.gsa-tabs {
    display: flex;
    border-bottom: 2px solid var(--gsa-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.gsa-tab {
    flex: 1;
    padding: 1rem 0.75rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gsa-text-light);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    white-space: nowrap;
    margin-bottom: -2px;
}

.gsa-tab:hover {
    color: var(--gsa-text);
    background: var(--gsa-bg);
}

.gsa-tab.active {
    color: var(--gsa-primary);
    border-bottom-color: var(--gsa-primary);
}

.gsa-tab-score {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 22px;
    padding: 0 6px;
    border-radius: 11px;
    font-size: 0.75rem;
    font-weight: 700;
    background: var(--gsa-bg);
    color: var(--gsa-text-light);
}

/* Tab content */
.gsa-tab-content {
    display: none;
    padding: 1.5rem 2rem 2rem;
}

.gsa-tab-content.active {
    display: block;
}

/* Score circle */
.gsa-score-bar-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.gsa-score-circle {
    position: relative;
    width: 100px;
    height: 100px;
}

.gsa-score-svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.gsa-score-bg {
    fill: none;
    stroke: var(--gsa-border);
    stroke-width: 3;
}

.gsa-score-fill {
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dasharray 1s ease;
}

.gsa-score-good .gsa-score-fill { stroke: var(--gsa-success); }
.gsa-score-ok .gsa-score-fill { stroke: var(--gsa-warning); }
.gsa-score-bad .gsa-score-fill { stroke: var(--gsa-danger); }

.gsa-score-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.75rem;
    font-weight: 800;
}

.gsa-score-good .gsa-score-value { color: var(--gsa-success); }
.gsa-score-ok .gsa-score-value { color: var(--gsa-warning); }
.gsa-score-bad .gsa-score-value { color: var(--gsa-danger); }

/* Check items */
.gsa-checks {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.gsa-check-item {
    padding: 0.875rem 1rem;
    border-radius: var(--gsa-radius-sm);
    border: 1px solid var(--gsa-border);
    transition: background 0.15s;
}

.gsa-check-item:hover {
    background: var(--gsa-bg);
}

.gsa-check-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.gsa-status-icon {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.gsa-icon-pass {
    background: #dcfce7;
    color: var(--gsa-success);
}

.gsa-icon-fail {
    background: #fef2f2;
    color: var(--gsa-danger);
}

.gsa-icon-warning {
    background: #fffbeb;
    color: var(--gsa-warning);
}

.gsa-icon-info {
    background: #f1f5f9;
    color: var(--gsa-info);
}

.gsa-check-label {
    font-weight: 600;
    font-size: 0.9rem;
}

.gsa-check-value {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--gsa-text-light);
    max-width: 50%;
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.gsa-check-info {
    margin: 0.4rem 0 0 1.9rem;
    font-size: 0.8rem;
    color: var(--gsa-text-light);
    line-height: 1.5;
    word-break: break-all;
    overflow-wrap: break-word;
}

/* Check status left border */
.gsa-check-pass { border-left: 3px solid var(--gsa-success); }
.gsa-check-fail { border-left: 3px solid var(--gsa-danger); }
.gsa-check-warning { border-left: 3px solid var(--gsa-warning); }
.gsa-check-info { border-left: 3px solid var(--gsa-info); }

/* Social Preview Cards */
.gsa-social-previews {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.gsa-preview-card {
    border: 1px solid var(--gsa-border);
    border-radius: var(--gsa-radius-sm);
    overflow: hidden;
}

.gsa-preview-card h4 {
    margin: 0;
    padding: 0.75rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--gsa-bg);
    border-bottom: 1px solid var(--gsa-border);
}

.gsa-preview-body {
    padding: 0;
}

.gsa-preview-image {
    width: 100%;
    height: 160px;
    overflow: hidden;
    background: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gsa-preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.gsa-preview-image.gsa-no-image {
    color: var(--gsa-text-light);
    font-size: 0.85rem;
}

.gsa-preview-image.gsa-no-image img {
    display: none;
}

.gsa-preview-text {
    padding: 0.75rem 1rem;
}

.gsa-preview-domain {
    font-size: 0.75rem;
    color: var(--gsa-text-light);
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.gsa-preview-title {
    font-size: 0.9rem;
    font-weight: 600;
    margin: 0.25rem 0;
    color: var(--gsa-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gsa-preview-desc {
    font-size: 0.8rem;
    color: var(--gsa-text-light);
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Branding */
.gsa-branding {
    padding: 1rem 2rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--gsa-text-light);
    border-top: 1px solid var(--gsa-border);
}

/* Tab icons (CSS-only) */
.gsa-tab-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.gsa-icon-seo::before { content: "\1F50D"; }
.gsa-icon-security::before { content: "\1F512"; }
.gsa-icon-performance::before { content: "\26A1"; }
.gsa-icon-social::before { content: "\1F310"; }

/* Responsive */
@media (max-width: 640px) {
    .gsa-form-wrapper {
        padding: 1.5rem 1rem;
    }

    .gsa-input-group {
        flex-direction: column;
    }

    .gsa-button {
        width: 100%;
        justify-content: center;
    }

    .gsa-tabs {
        gap: 0;
    }

    .gsa-tab {
        padding: 0.75rem 0.5rem;
        font-size: 0.8rem;
        flex-direction: column;
        gap: 0.2rem;
    }

    .gsa-tab-content {
        padding: 1rem;
    }

    .gsa-social-previews {
        grid-template-columns: 1fr;
    }

    .gsa-check-header {
        flex-wrap: wrap;
    }

    .gsa-check-value {
        margin-left: 1.9rem;
        max-width: 100%;
        text-align: left;
    }

    .gsa-title {
        font-size: 1.35rem;
    }
}