/*
Theme Name: IT-Toolbox
Theme URI: https://it-toolbox.de
Author: Herbi
Author URI: https://it-toolbox.de
Description: Eigenes WordPress-Theme für die IT-Toolbox – eine Sammlung nützlicher Online-Tools für IT-Profis und Entwickler.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: it-toolbox
Requires at least: 6.0
Requires PHP: 8.0
*/

/* ==========================================================================
   CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
    /* Colors */
    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-card: #1e293b;
    --color-bg-card-hover: #263348;
    --color-bg-input: #0f172a;
    --color-border: #334155;
    --color-border-light: #1e293b;

    --color-text-primary: #e2e8f0;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;

    --color-accent: #0ea5e9;
    --color-accent-hover: #38bdf8;
    --color-accent-bg: rgba(14, 165, 233, 0.1);

    /* Category Colors */
    --color-netzwerk: #0ea5e9;
    --color-security: #ef4444;
    --color-encoding: #8b5cf6;
    --color-admin: #f59e0b;
    --color-konvertierung: #10b981;
    --color-text-tools: #ec4899;

    /* Typography */
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-heading: 'Space Grotesk', 'Inter', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.4);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;

    /* Layout */
    --container-max: 1200px;
    --container-narrow: 800px;
    --header-height: 64px;
}

/* Light Mode Override */
@media (prefers-color-scheme: light) {
    :root.auto-theme {
        --color-bg-primary: #f8fafc;
        --color-bg-secondary: #ffffff;
        --color-bg-card: #ffffff;
        --color-bg-card-hover: #f1f5f9;
        --color-bg-input: #f1f5f9;
        --color-border: #e2e8f0;
        --color-border-light: #f1f5f9;
        --color-text-primary: #0f172a;
        --color-text-secondary: #475569;
        --color-text-muted: #94a3b8;
        --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
        --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
    }
}

body.light-mode {
    --color-bg-primary: #f8fafc;
    --color-bg-secondary: #ffffff;
    --color-bg-card: #ffffff;
    --color-bg-card-hover: #f1f5f9;
    --color-bg-input: #f1f5f9;
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-muted: #94a3b8;
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */

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

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

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

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

img {
    max-width: 100%;
    height: auto;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); margin-bottom: var(--space-lg); }
h2 { font-size: clamp(1.25rem, 3vw, 1.75rem); margin-bottom: var(--space-md); }
h3 { font-size: 1.25rem; margin-bottom: var(--space-md); }

p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

code, pre {
    font-family: var(--font-mono);
}

code {
    background: var(--color-bg-card);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--color-accent);
}

/* ==========================================================================
   Layout
   ========================================================================== */

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

.container--narrow {
    max-width: var(--container-narrow);
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-light);
    height: var(--header-height);
    display: flex;
    align-items: center;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-text-primary);
}

.site-logo .logo-icon {
    font-size: 1.5rem;
}

.site-logo span {
    background: linear-gradient(135deg, var(--color-accent), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-xs);
}

.main-nav a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.main-nav a:hover,
.main-nav .current-menu-item a {
    color: var(--color-accent);
    background: var(--color-accent-bg);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-sm);
    color: var(--color-text-primary);
    cursor: pointer;
    font-size: 1.25rem;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg-secondary);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-md);
    }

    .main-nav.is-open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
    }

    .main-nav a {
        padding: var(--space-md);
    }
}

/* ==========================================================================
   Search Bar (Header)
   ========================================================================== */

.site-search {
    position: relative;
}

.site-search input {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: var(--space-sm) var(--space-lg);
    padding-left: 36px;
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.875rem;
    width: 220px;
    transition: all var(--transition-fast);
}

.site-search input:focus {
    outline: none;
    border-color: var(--color-accent);
    width: 280px;
}

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

.site-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* ==========================================================================
   Hero Section (Startseite)
   ========================================================================== */

.hero {
    text-align: center;
    padding: var(--space-3xl) 0;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    background: linear-gradient(135deg, var(--color-accent), #8b5cf6, #ef4444);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-md);
}

.hero p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.hero-search {
    max-width: 500px;
    margin: 0 auto;
    position: relative;
}

.hero-search input {
    width: 100%;
    padding: var(--space-md) var(--space-xl);
    padding-left: 48px;
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.hero-search input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.hero-search .search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    color: var(--color-text-muted);
}

/* Stats Bar */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.hero-stat {
    text-align: center;
}

.hero-stat .stat-number {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
}

.hero-stat .stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   Tool Cards Grid
   ========================================================================== */

.tools-section {
    padding: var(--space-2xl) 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.section-title .cat-icon {
    font-size: 1.5rem;
}

.section-title .cat-badge {
    font-size: 0.75rem;
    padding: 2px 10px;
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

/* Tool Card */
.tool-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-accent, var(--color-accent));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.tool-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-2px);
}

.tool-card:hover::before {
    opacity: 1;
}

.tool-card__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.tool-card__title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.tool-card__desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.tool-card__arrow {
    position: absolute;
    bottom: var(--space-md);
    right: var(--space-md);
    color: var(--color-text-muted);
    opacity: 0;
    transform: translateX(-4px);
    transition: all var(--transition-fast);
}

.tool-card:hover .tool-card__arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Category accent colors on cards */
.tool-card--netzwerk     { --card-accent: var(--color-netzwerk); }
.tool-card--security     { --card-accent: var(--color-security); }
.tool-card--encoding     { --card-accent: var(--color-encoding); }
.tool-card--admin        { --card-accent: var(--color-admin); }
.tool-card--konvertierung { --card-accent: var(--color-konvertierung); }
.tool-card--text-tools   { --card-accent: var(--color-text-tools); }

/* ==========================================================================
   Category Page Header
   ========================================================================== */

.category-header {
    padding: var(--space-2xl) 0 var(--space-lg);
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: var(--space-xl);
}

.category-header h1 {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.category-header .cat-count {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Single Tool Page
   ========================================================================== */

.tool-page {
    padding: var(--space-xl) 0;
}

.tool-breadcrumb {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    font-family: var(--font-mono);
}

.tool-breadcrumb a {
    color: var(--color-text-muted);
}

.tool-breadcrumb a:hover {
    color: var(--color-accent);
}

.tool-breadcrumb .separator {
    margin: 0 var(--space-sm);
    opacity: 0.5;
}

.tool-container {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
}

/* Tool-specific form elements */
.tool-container label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
    font-family: var(--font-mono);
}

.tool-container input[type="text"],
.tool-container input[type="number"],
.tool-container input[type="url"],
.tool-container select,
.tool-container textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    transition: border-color var(--transition-fast);
}

.tool-container input:focus,
.tool-container select:focus,
.tool-container textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

.tool-container .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.tool-container .btn:hover {
    background: var(--color-accent-hover);
}

.tool-container .btn--secondary {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
}

.tool-container .btn--secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.tool-result {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: var(--color-bg-primary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border-light);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.tool-result__label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.tool-result__value {
    color: var(--color-accent);
    font-weight: 600;
}

/* Copy Button */
.btn-copy {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-copy.copied {
    border-color: var(--color-konvertierung);
    color: var(--color-konvertierung);
}

/* ==========================================================================
   SEO Content Block (below tool)
   ========================================================================== */

.seo-content {
    padding: var(--space-xl) 0;
}

.seo-content h2 {
    margin-top: var(--space-xl);
}

.seo-content p {
    max-width: 70ch;
}

/* FAQ Accordion */
.faq-item {
    border-bottom: 1px solid var(--color-border-light);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: var(--space-md) 0;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
}

.faq-answer {
    padding: 0 0 var(--space-md);
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
    display: none;
}

.faq-item.is-open .faq-answer {
    display: block;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    border-top: 1px solid var(--color-border-light);
    padding: var(--space-2xl) 0;
    margin-top: var(--space-3xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
}

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

.footer-brand {
    font-family: var(--font-mono);
}

.footer-brand .brand-name {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.footer-brand p {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.footer-col h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: var(--space-sm);
}

.footer-col a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.footer-col a:hover {
    color: var(--color-accent);
}

.footer-bottom {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }