/* ═══════════════════════════════════════════════════════════
   GitHub CI/CD Checker — Styles
   Inspired by Google PageSpeed Insights
   ═══════════════════════════════════════════════════════════ */

/* ── Reset & Base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-bg: #f8f9fa;
    --color-surface: #ffffff;
    --color-text: #202124;
    --color-text-secondary: #5f6368;
    --color-border: #dadce0;
    --color-primary: #1a73e8;
    --color-primary-hover: #1557b0;
    --color-green: #0cce6b;
    --color-orange: #ffa400;
    --color-red: #ff4e42;
    --color-green-bg: #e6f9ed;
    --color-orange-bg: #fff3e0;
    --color-red-bg: #fde7e7;
    --color-skipped-bg: #f1f3f4;
    --font-sans: 'Inter', 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(60, 64, 67, 0.1);
    --shadow-md: 0 2px 8px rgba(60, 64, 67, 0.15);
    --shadow-lg: 0 4px 16px rgba(60, 64, 67, 0.2);
    --max-width: 960px;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ── App Shell ── */
.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px 24px;
    width: 100%;
}

/* ── Header ── */
.header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-icon {
    font-size: 24px;
}

.header-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.header-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
}

.header-link:hover {
    text-decoration: underline;
}

/* ── Search Section ── */
.search-section {
    margin-bottom: 40px;
}

.search-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: 28px;
    padding: 4px 4px 4px 20px;
    gap: 12px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input-wrapper:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.search-icon {
    font-size: 18px;
    flex-shrink: 0;
}

.search-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 16px;
    font-family: var(--font-sans);
    color: var(--color-text);
    background: transparent;
    padding: 12px 0;
}

.search-input::placeholder {
    color: var(--color-text-secondary);
}

.btn-analyze {
    flex-shrink: 0;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: 24px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background 0.2s;
}

.btn-analyze:hover:not(:disabled) {
    background: var(--color-primary-hover);
}

.btn-analyze:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ── Token Section ── */
.token-section {
    padding: 0 20px;
}

.token-toggle {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: 13px;
    font-family: var(--font-sans);
    cursor: pointer;
    padding: 4px 0;
}

.token-toggle:hover {
    color: var(--color-primary);
}

.token-input-wrapper {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.token-input {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 14px;
    font-family: monospace;
    color: var(--color-text);
    outline: none;
    transition: border-color 0.2s;
}

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

.token-hint {
    font-size: 12px;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

/* ── Hero Section (idle state) ── */
.hero-section {
    text-align: center;
    padding: 80px 24px;
}

.hero-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 28px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 16px;
    color: var(--color-text-secondary);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ── Loading ── */
.loading-section {
    text-align: center;
    padding: 80px 24px;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 24px;
}

.loading-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.loading-subtext {
    font-size: 14px;
    color: var(--color-text-secondary);
}

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

/* ── Error Section ── */
.error-section {
    text-align: center;
    padding: 60px 24px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.error-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.error-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.error-message {
    color: var(--color-red);
    font-size: 14px;
    margin-bottom: 24px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-primary);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.btn-secondary:hover {
    background: #f1f3f4;
    border-color: var(--color-primary);
}

/* ── Results Section ── */
.results-section {
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.results-repo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.results-repo-icon {
    font-size: 20px;
}

.results-repo-link {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
}

.results-repo-link:hover {
    text-decoration: underline;
}

/* ── Score Gauge ── */
.results-score-area {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}

.score-gauge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.gauge-svg {
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.08));
}

.gauge-arc {
    transition: stroke-dashoffset 1s ease;
}

.gauge-score-text {
    font-size: 32px;
    font-weight: 700;
    font-family: var(--font-sans);
}

.gauge-label-text {
    font-size: 11px;
    font-weight: 500;
    font-family: var(--font-sans);
}

.gauge-badge {
    font-size: 16px;
    font-weight: 600;
}

/* ── Categories Grid ── */
.categories-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.category-card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.category-card:hover {
    box-shadow: var(--shadow-md);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    cursor: pointer;
    user-select: none;
    gap: 16px;
}

.category-title-area {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.category-icon {
    font-size: 18px;
}

.category-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
}

.category-score-area {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    justify-content: flex-end;
}

.category-score {
    font-size: 15px;
    font-weight: 700;
    white-space: nowrap;
}

.category-bar-bg {
    width: 120px;
    height: 6px;
    background: #e8eaed;
    border-radius: 3px;
    overflow: hidden;
}

.category-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.6s ease;
}

.category-chevron {
    color: var(--color-text-secondary);
    font-size: 14px;
    width: 20px;
    text-align: center;
}

/* ── Check Rows ── */
.category-checks {
    border-top: 1px solid var(--color-border);
}

.check-row {
    padding: 14px 24px 14px 56px;
    cursor: pointer;
    transition: background 0.15s;
    border-bottom: 1px solid #f1f3f4;
}

.check-row:last-child {
    border-bottom: none;
}

.check-row:hover {
    background: #fafafa;
}

.check-row-main {
    display: flex;
    align-items: center;
    gap: 12px;
}

.check-status-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.check-passed .check-status-icon {
    background: var(--color-green-bg);
    color: var(--color-green);
}

.check-failed .check-status-icon {
    background: var(--color-red-bg);
    color: var(--color-red);
}

.check-warning .check-status-icon {
    background: var(--color-orange-bg);
    color: var(--color-orange);
}

.check-skipped .check-status-icon {
    background: var(--color-skipped-bg);
    color: var(--color-text-secondary);
}

.check-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex: 1;
    gap: 8px;
}

.check-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
}

.check-detail {
    margin-top: 10px;
    padding: 12px 16px;
    background: #f8f9fa;
    border-radius: var(--radius-sm);
    margin-left: 36px;
}

.check-detail-text {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.check-suggestion {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: var(--color-primary);
    background: rgba(26, 115, 232, 0.06);
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    line-height: 1.5;
}

.suggestion-icon {
    flex-shrink: 0;
    margin-top: 1px;
}

/* ── Timestamp ── */
.results-timestamp {
    text-align: center;
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-top: 32px;
}

/* ── Footer ── */
.footer {
    text-align: center;
    padding: 24px;
    font-size: 13px;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    margin-top: 40px;
}

.footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .main-content {
        padding: 20px 16px;
    }

    .search-input-wrapper {
        flex-direction: column;
        border-radius: var(--radius-md);
        padding: 12px;
        gap: 8px;
    }

    .search-input {
        width: 100%;
        text-align: center;
    }

    .btn-analyze {
        width: 100%;
        justify-content: center;
        border-radius: var(--radius-sm);
    }

    .hero-title {
        font-size: 22px;
    }

    .hero-section {
        padding: 48px 16px;
    }

    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .category-score-area {
        width: 100%;
        justify-content: flex-start;
    }

    .category-bar-bg {
        flex: 1;
    }

    .check-row {
        padding-left: 24px;
    }

    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
}