/**
 * Components CSS - MichelTools.com
 * Reusable UI components: buttons, cards, navigation, etc.
 */

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-family: var(--font-heading);
}

.btn:visited {
    color: inherit;
}

/* Primary Button */
/* Higher-specificity selectors so .btn-primary always wins over
   navbar-nav a, app-card a, generic `a`, and a:visited rules. */
a.btn-primary,
.btn-primary,
.navbar-nav a.btn-primary,
.btn-primary:visited,
a.btn-primary:visited {
    background-color: var(--color-primary);
    color: var(--text-white);
    border-color: var(--color-primary);
    text-decoration: none;
}

a.btn-primary:hover,
.btn-primary:hover,
.navbar-nav a.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}

.btn-primary:active {
    transform: translateY(0);
}

/* Same hardening for secondary buttons and teal (open-source) variants */
a.btn-secondary,
.btn-secondary,
a.btn-secondary:visited {
    text-decoration: none;
}

a.btn-secondary:hover {
    color: var(--text-white);
    text-decoration: none;
}

/* Secondary Button */
.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--text-white);
    transform: translateY(-2px);
}

/* Secondary (Teal) Button - for Open-Source */
.btn-secondary-teal {
    background-color: transparent;
    color: var(--color-secondary);
    border-color: var(--color-secondary);
}

.btn-secondary-teal:hover {
    background-color: var(--color-secondary);
    color: var(--text-white);
    transform: translateY(-2px);
}

/* Accent Button */
.btn-accent,
a.btn-accent,
a.btn-accent:visited {
    background-color: var(--color-accent);
    color: var(--text-white);
    border-color: var(--color-accent);
    text-decoration: none;
}

a.btn-accent:hover {
    color: var(--text-white);
    text-decoration: none;
}

/* ===== Global button safety net =====
   Make sure no generic `a`, `a:visited`, `.navbar-nav a`, or `.app-card a`
   rule can ever wash out a button's text/border. Buttons declare their
   own color via .btn-primary / .btn-secondary / .btn-accent etc. */
a.btn,
a.btn:visited,
.navbar-nav a.btn,
.app-card a.btn,
.app-card-footer a.btn {
    text-decoration: none;
}

.btn-accent:hover {
    background-color: var(--color-accent-dark);
    border-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Ghost Button */
.btn-ghost {
    background-color: transparent;
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.btn-ghost:hover {
    background-color: var(--bg-light);
    border-color: var(--text-secondary);
}

/* Text Button */
.btn-text {
    background: none;
    color: var(--color-primary);
    border: none;
    padding: 0.5rem 1rem;
    text-decoration: underline;
}

.btn-text:hover {
    color: var(--color-primary-dark);
    text-decoration-thickness: 3px;
}

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Full Width Button */
.btn-block {
    display: flex;
    width: 100%;
}

/* Disabled Button */
.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* ===== Cards ===== */
.card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-light {
    background-color: var(--bg-light);
    border: none;
    box-shadow: none;
}

.card-bordered {
    background-color: var(--bg-white);
    border: 2px solid var(--border-medium);
    box-shadow: none;
}

.card-bordered:hover {
    border-color: var(--color-primary);
}

/* Card Header */
.card-header {
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--space-md);
}

.card-header h3 {
    margin-bottom: 0;
}

/* Card Body */
.card-body {
    flex: 1;
}

.card-body p:last-child {
    margin-bottom: 0;
}

/* Card Footer */
.card-footer {
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-light);
    margin-top: var(--space-md);
}

/* ===== Badges ===== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-primary {
    background-color: var(--color-primary);
    color: var(--text-white);
}

.badge-secondary {
    background-color: var(--color-secondary);
    color: var(--text-white);
}

.badge-accent {
    background-color: var(--color-accent);
    color: var(--text-white);
}

.badge-light {
    background-color: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.badge-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

/* ===== Tags ===== */
.tag {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    background-color: var(--bg-light);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    margin: 0 0.25rem 0.25rem 0;
}

/* ===== Navigation ===== */
.navbar {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--shadow-sm);
}

.navbar-container,
.navbar > .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.navbar-brand span {
    color: var(--color-primary);
}

.navbar-brand:hover {
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar-nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    border: none;
}

.navbar-nav a:hover,
.navbar-nav a.active {
    color: var(--color-primary);
}

.navbar-nav a.active {
    font-weight: 600;
}

/* ===== Footer ===== */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-muted);
    padding: var(--space-2xl) 0 var(--space-lg);
    margin-top: var(--space-2xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-column h4 {
    color: var(--text-white);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.footer-column ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
    border: none;
}

.footer-column a:hover {
    color: var(--text-white);
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid var(--border-medium);
    padding-top: var(--space-lg);
    text-align: center;
    font-size: 0.875rem;
}

/* ===== Hero Section ===== */
.hero {
    padding: var(--space-3xl) 0;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--bg-light) 100%);
    border-bottom: 1px solid var(--border-light);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-lg);
    flex-wrap: wrap;
}

/* ===== Grid System ===== */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ===== App Card (for Showcase) ===== */
.app-card {
    background-color: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.app-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.app-card-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.app-card-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.app-card-tagline {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.5;
}

.app-card-footer {
    margin-top: auto;
    padding-top: var(--space-md);
}

/* ===== Feature List ===== */
.feature-list {
    list-style: none;
    margin: var(--space-md) 0;
    padding: 0;
}

.feature-list li {
    padding: var(--space-sm) 0;
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.feature-list li::before {
    content: "✓";
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

/* ===== Alert/Notice ===== */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    border-left: 4px solid;
}

.alert-info {
    background-color: #eff6ff;
    border-color: var(--color-primary);
    color: #1e40af;
}

.alert-success {
    background-color: #f0fdf4;
    border-color: #22c55e;
    color: #166534;
}

.alert-warning {
    background-color: #fffbeb;
    border-color: #f59e0b;
    color: #92400e;
}

.alert-error {
    background-color: #fef2f2;
    border-color: #ef4444;
    color: #991b1b;
}

/* ===== Responsive Utilities ===== */
@media (max-width: 768px) {
    .navbar-container,
    .navbar > .container {
        flex-direction: column;
        height: auto;
        padding: var(--space-md);
    }
    
    .navbar-nav {
        flex-direction: column;
        gap: var(--space-sm);
        margin-top: var(--space-md);
        width: 100%;
    }
    
    .navbar-nav a {
        width: 100%;
        text-align: center;
        padding: var(--space-sm);
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .footer-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: var(--space-md);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--space-xl) 0;
    }
    
    .container,
    .container-narrow,
    .container-wide {
        padding: 0 var(--space-md);
    }
    
    .card {
        padding: var(--space-md);
    }
    
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}
/* ===== Navigation variants (nav-brand / nav-links) ===== */
.nav-brand a {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}
.nav-brand a:hover {
    text-decoration: none;
    color: var(--color-primary);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    border: none;
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--color-primary);
}

/* ===== Section helpers ===== */
.section {
    padding: var(--space-3xl) 0;
}
.section-alt {
    background-color: var(--bg-light);
    padding: var(--space-3xl) 0;
}

/* ===== Hero teal variant — white text when hero has a coloured background ===== */
.hero[style*="background"] .hero-title,
.hero[style*="background"] h1 {
    color: #ffffff !important;
}
.hero[style*="background"] .hero-subtitle,
.hero[style*="background"] p {
    color: rgba(255, 255, 255, 0.90) !important;
}

/* ===== Hero extras ===== */
.hero-badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: rgba(0,0,0,0.08);
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}
.hero-version {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 500;
    background: rgba(0,0,0,0.06);
    color: var(--text-secondary);
    margin-bottom: 1rem;
    margin-left: 0.5rem;
}
.hero[style*="background"] .hero-badge,
.hero[style*="background"] .hero-version {
    color: rgba(255,255,255,0.92) !important;
}
.hero-actions {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-top: var(--space-lg);
    flex-wrap: wrap;
}

/* ===== Code preview (hero terminal block) ===== */
.code-preview {
    margin-top: var(--space-xl);
    background: #0b1220;
    border-radius: var(--radius-lg);
    overflow: hidden;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
    border: 1px solid rgba(255,255,255,0.08);
}
.code-header {
    background: rgba(255,255,255,0.05);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: rgba(255,255,255,0.85);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.code-body {
    padding: 1.25rem 1.5rem;
    margin: 0;
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.7;
    color: #f8fafc;
    overflow-x: auto;
    background: transparent;
}
.code-body code {
    color: #f8fafc;
    background: transparent;
    font-family: var(--font-mono);
}

/* ===== Code examples (usage section) ===== */
.code-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
}
.code-example h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}
.code-block {
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    overflow-x: auto;
}
.code-block pre {
    margin: 0;
    background: transparent;
}
.code-block code,
.code-block pre,
.code-block pre code {
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    color: #0f172a;
    font-weight: 600;
    line-height: 1.6;
    background: transparent;
}

/* ===== Feature cards (open-source project pages) ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
}
.feature-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}
.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: linear-gradient(135deg, #ccfbf1 0%, #99f6e4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-md);
    color: #0f766e;
}
.feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}
.feature-description {
    color: var(--text-secondary);
    line-height: 1.65;
    font-size: 0.9375rem;
}

/* ===== Tech details / install tables inside open-source pages ===== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--space-lg);
}
.tech-item {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}
.tech-label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}
.tech-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* ===== Mobile nav toggle (hamburger) ===== */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    .nav-links {
        display: none;
        flex-direction: column;
        gap: var(--space-sm);
        width: 100%;
        padding-top: var(--space-md);
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links a {
        width: 100%;
        text-align: center;
        padding: var(--space-sm);
    }
    .hero-actions {
        flex-direction: column;
    }
    .features-grid,
    .code-examples,
    .tech-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Language Switcher ===== */
.lang-switcher {
    position: relative;
    display: inline-block;
}
.lang-switcher-toggle {
    background: transparent;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}
.lang-switcher-toggle:hover {
    background-color: var(--bg-light);
    border-color: var(--color-primary);
}
.lang-switcher-toggle::after {
    content: "▾";
    font-size: 0.7rem;
    opacity: 0.6;
}
.lang-switcher-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 0.4rem);
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    min-width: 140px;
    list-style: none;
    margin: 0;
    padding: 0.4rem 0;
    display: none;
    z-index: 1000;
}
.lang-switcher.open .lang-switcher-menu {
    display: block;
}
.lang-switcher-menu li {
    margin: 0;
    padding: 0;
}
.lang-switcher-menu a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    transition: background-color var(--transition-fast);
}
.lang-switcher-menu a:hover {
    background-color: var(--bg-light);
    text-decoration: none;
}
.lang-switcher-menu a.active {
    color: var(--color-primary);
    font-weight: 600;
}