/*
 * File: style.css
 * Project: victor42-skills
 * Description: Layout and theme styles for catalog and skill detail pages
 */

:root {
    --color-primary: #2A9D8F;
    --color-primary-hover: #219789;
    --color-primary-soft: rgba(42, 157, 143, 0.12);
    --color-text: #333;
    --color-text-secondary: #555;
    --color-text-muted: #7f8c8d;
    --color-text-heading: #2c3e50;
    --color-background: #f5f5fa;
    --color-card-background: #ffffff;
    --color-card-shadow: rgba(0, 0, 0, 0.08);
    --color-card-shadow-hover: rgba(0, 0, 0, 0.12);
    --color-loading-bg: #f3f3f3;
    --color-loading-spinner: #667eea;
    --color-error: #e74c3c;
    --color-code-bg: #f0f2f5;
    --color-border: rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
    --color-text: #d0d3d6;
    --color-text-secondary: #b0b3b8;
    --color-text-muted: #8a8d91;
    --color-text-heading: #e0e0e0;
    --color-background: #18191a;
    --color-card-background: rgba(36, 37, 38, 0.72);
    --color-card-shadow: transparent;
    --color-card-shadow-hover: transparent;
    --color-loading-bg: #3a3b3c;
    --color-code-bg: #242526;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-primary-soft: rgba(42, 157, 143, 0.18);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-background);
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

a:hover {
    color: var(--color-primary-hover);
}

:focus {
    outline: none;
}

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
}

.theme-toggle:focus-visible,
.lang-toggle:focus-visible,
.skill-card:focus-visible {
    outline-offset: 4px;
}

/* Theme toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--color-card-background);
    color: var(--color-text);
    box-shadow:
        0 4px 12px var(--color-card-shadow),
        0 8px 24px var(--color-card-shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-size: 20px;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow:
        0 6px 16px var(--color-card-shadow-hover),
        0 12px 32px var(--color-card-shadow-hover);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-icon {
    transition: transform 0.3s ease;
}

[data-theme="dark"] .theme-icon {
    transform: rotate(180deg);
}

/* Language toggle */
.lang-toggle {
    position: fixed;
    top: 20px;
    right: 80px;
    z-index: 1000;
    height: 50px;
    min-width: 80px;
    padding: 0 20px;
    border: none;
    border-radius: 25px;
    background: var(--color-card-background);
    color: var(--color-text);
    box-shadow:
        0 4px 12px var(--color-card-shadow),
        0 8px 24px var(--color-card-shadow);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 600;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.lang-toggle:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow:
        0 6px 16px var(--color-card-shadow-hover),
        0 12px 32px var(--color-card-shadow-hover);
}

.lang-toggle:active {
    transform: translateY(0) scale(0.98);
}

.lang-icon {
    font-size: 18px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lang-text {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}

.site-header {
    margin-bottom: 32px;
}

.parent-link {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 12px;
    text-decoration: none;
}

.parent-link:hover {
    color: var(--color-primary-hover);
    background: var(--color-primary-soft);
}

.site-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-heading);
    margin-bottom: 8px;
}

.hero-card {
    background: linear-gradient(135deg, rgba(42, 157, 143, 0.92), rgba(33, 151, 137, 0.88));
    color: #fff;
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 28px;
    box-shadow: 0 8px 32px rgba(42, 157, 143, 0.25);
}

.hero-card p {
    margin: 0;
    font-size: 1.05rem;
    line-height: 1.65;
}

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

.skill-card {
    display: block;
    background: var(--color-card-background);
    border-radius: 16px;
    padding: 20px;
    box-shadow: 0 4px 20px var(--color-card-shadow), 0 8px 40px var(--color-card-shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    color: inherit;
    text-decoration: none;
    border: 1px solid var(--color-border);
}

.skill-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px var(--color-card-shadow-hover);
    color: inherit;
}

.skill-emoji {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 10px;
}

.skill-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: 6px;
}

.skill-summary {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.skill-detail-header {
    margin-bottom: 28px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    margin-bottom: 20px;
    color: var(--color-text-muted);
}

.back-link:hover {
    color: var(--color-primary);
}

.detail-emoji {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.detail-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text-heading);
    margin-bottom: 10px;
}

.detail-summary {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
}

.panel {
    background: var(--color-card-background);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 20px 22px;
    margin-bottom: 16px;
    box-shadow: 0 4px 20px var(--color-card-shadow);
}

.panel h2 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}

.tag-list li {
    font-size: 0.82rem;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.capability-block {
    margin-bottom: 18px;
}

.capability-block:last-child {
    margin-bottom: 0;
}

.capability-block h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: 8px;
}

.capability-block ul {
    margin: 0;
    padding-left: 1.2rem;
}

.capability-block li {
    font-size: 0.92rem;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
    line-height: 1.5;
}

.install-block pre {
    background: var(--color-code-bg);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 16px;
    overflow-x: auto;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.82rem;
    line-height: 1.55;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--color-text);
    margin-top: 10px;
}

.copy-hint {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.copy-link {
    display: inline;
    padding: 0;
    margin: 0;
    border: none;
    background: none;
    color: var(--color-primary);
    font: inherit;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
    cursor: pointer;
}

.copy-link:hover {
    color: var(--color-primary-hover);
}

.copy-link.is-copied {
    color: var(--color-primary);
    text-decoration: none;
    pointer-events: none;
}

.loading {
    text-align: center;
    padding: 80px 20px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-loading-bg);
    border-top: 4px solid var(--color-loading-spinner);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.error {
    text-align: center;
    padding: 80px 20px;
    color: var(--color-error);
}

.footer {
    text-align: center;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

.footer p {
    color: var(--color-text-muted);
    font-size: 0.88rem;
}

.footer a {
    margin: 0 4px;
}

[hidden] {
    display: none !important;
}

@media (max-width: 640px) {
    .skills-grid {
        grid-template-columns: 1fr;
    }

    .site-title {
        font-size: 1.6rem;
    }

    .detail-title {
        font-size: 1.45rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }

    .skill-card:hover,
    .theme-toggle:hover,
    .lang-toggle:hover {
        transform: none;
    }
}