/* ========================================
   CSS VARIABLES & DESIGN TOKENS (SUNSET GLOW)
   ======================================== */
:root {
    /* Colors - Dark Mode Palette */
    /* Wir bleiben bei einem dunklen, fast schwarzen Hintergrund für maximalen Kontrast */
    --color-bg-primary: hsl(240, 10%, 8%);
    --color-bg-secondary: hsl(240, 10%, 12%);
    --color-bg-card: hsla(240, 10%, 16%, 0.6);
    --color-bg-card-hover: hsla(240, 10%, 20%, 0.8);

    /* --- FARBSCHEMA: SUNSET GLOW (Amber -> Pink) --- */

    /* Hauptverlauf: Von leuchtendem Orange/Gold zu einem warmen Pink/Magenta */
    --gradient-primary: linear-gradient(135deg, hsl(35, 100%, 60%) 0%, hsl(330, 85%, 60%) 100%);

    /* Akzentverlauf (für Hover-Balken): Etwas "feuriger" */
    --gradient-accent: linear-gradient(135deg, hsl(20, 100%, 60%) 0%, hsl(300, 80%, 60%) 100%);

    /* Hintergrund-Schimmer (Warm) */
    --gradient-bg: radial-gradient(circle at 20% 50%, hsla(330, 80%, 40%, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, hsla(35, 100%, 40%, 0.15) 0%, transparent 50%);

    /* Solid Accent Color - Ein helles Bernstein/Orange für beste Lesbarkeit */
    --color-accent: hsl(35, 100%, 60%);
    --color-accent-hover: hsl(35, 100%, 70%);

    /* Text Colors */
    --color-text-primary: hsl(0, 0%, 98%);
    --color-text-secondary: hsl(240, 5%, 75%);
    --color-text-muted: hsl(240, 5%, 55%);

    /* Glassmorphism */
    --glass-bg: hsla(240, 10%, 20%, 0.4);
    --glass-border: hsla(0, 0%, 100%, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);

    /* Spacing & Radius bleiben gleich */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-bg);
    z-index: -1;
    pointer-events: none;
}

/* ========================================
   CONTAINER & LAYOUT
   ======================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

/* ========================================
   HEADER
   ======================================== */
.header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    /* Der warme Verlauf */
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-xs);
    animation: fadeInUp 0.6s ease;
    /* Ein leichter rötlicher Schatten für Glow-Effekt */
    filter: drop-shadow(0 2px 15px rgba(255, 100, 0, 0.2));
}

.title-link {
    text-decoration: none;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.7s ease;
}

/* ========================================
   SEARCH SECTION
   ======================================== */
.search-section {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.7s ease;
}

.search-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
    z-index: 10;
    /* Lupe sichtbar machen */
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: var(--font-family);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    box-shadow: var(--glass-shadow);
}

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

.search-input:focus {
    outline: none;
    /* Fokus-Rand in Orange */
    border-color: var(--color-accent);
    /* Warmes Glühen */
    box-shadow: 0 0 0 1px var(--color-accent), 0 0 20px rgba(255, 160, 50, 0.2);
}

.search-input:focus+.search-icon,
.search-wrapper:hover .search-icon {
    /* Lupe wird Orange */
    color: var(--color-accent);
}

/* ========================================
   TAGLINE
   ======================================== */
.tagline {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navigation {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-2xl);
    animation: fadeInUp 0.9s ease;
}

.nav-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: 1rem;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-block;
}

.nav-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    /* Warm gradient */
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: -1;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    color: white;
    border-color: transparent;
}

.nav-btn:hover::before {
    opacity: 1;
}

.nav-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: 0 8px 24px hsla(330, 80%, 50%, 0.4);
}

.nav-btn.active::before {
    opacity: 1;
}

/* ========================================
   TOOLS SECTION
   ======================================== */
.tools-section {
    animation: fadeInUp 1s ease;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

/* Tool Card */
.tool-card {
    background: var(--color-bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    animation: fadeIn 0.4s ease;
}

.tool-card.clickable {
    cursor: pointer;
}

.tool-card.clickable:active {
    transform: translateY(-2px) scale(0.98);
}

/* Balken oben (Orange -> Pink) */
.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.tool-card:hover {
    background: var(--color-bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
    /* Subtiler oranger Rand beim Hover */
    border-color: hsla(35, 100%, 60%, 0.3);
}

.tool-card:hover::before {
    transform: scaleX(1);
}

.tool-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.tool-category {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.tool-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.tool-link-indicator {
    display: inline-block;
    margin-top: var(--spacing-sm);
    font-size: 0.85rem;
    /* Hell-Orange für den Link */
    color: var(--color-accent);
    font-weight: 600;
    opacity: 0.9;
    transition: all var(--transition-fast);
}

.tool-card.clickable:hover .tool-link-indicator {
    opacity: 1;
    transform: translateX(4px);
    text-shadow: 0 0 15px rgba(255, 160, 50, 0.4);
}

/* ========================================
   EMPTY STATE & UTILS
   ======================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    animation: fadeIn 0.5s ease;
}

.empty-state.hidden {
    display: none;
}

.hidden {
    display: none !important;
}

.empty-icon {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.empty-subtext {
    font-size: 1rem;
    color: var(--color-text-muted);
}

/* ========================================
   ANIMATIONS & RESPONSIVE
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .title {
        font-size: clamp(2.5rem, 10vw, 3.5rem);
    }

    .tools-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .search-input {
        font-size: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible */
.nav-btn:focus-visible,
.search-input:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}