/**
 * Beauty Concept - Global Design System
 * 
 * Dieses Stylesheet definiert das zentrale Design-System basierend auf
 * dem Premium-Kontaktseiten-Design. Es kann schrittweise auf alle
 * Theme-Komponenten angewendet werden.
 * 
 * @package BeautyConcept
 * @version 2.0
 */

/* ============================================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================================ */

:root {
    /* --- Farbpalette --- */
    --bc-color-primary: #8c7b75;        /* Taupe - Hauptfarbe für Branding */
    --bc-color-primary-dark: #756660;   /* Dunkleres Taupe für Hover-States */
    --bc-color-light: #f5f0ed;          /* Hellbeige - Hintergründe */
    --bc-color-accent: #d4af37;         /* Gold - Premium-Akzente */
    --bc-color-text: #2c2c2c;           /* Dunkelgrau - Haupttext */
    --bc-color-text-muted: #666666;     /* Hellgrau - Sekundärtext */
    --bc-color-white: #ffffff;
    --bc-color-border: #eeeeee;         /* Subtile Borders */
    --bc-color-border-light: #dddddd;   /* Input-Borders */
    
    /* Feedback-Farben */
    --bc-color-success: #4caf50;
    --bc-color-error: #f44336;
    --bc-color-warning: #ff9800;
    
    /* --- Typografie --- */
    --bc-font-serif: 'Playfair Display', Georgia, serif;
    --bc-font-sans: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Font Sizes (fluid typography) */
    --bc-font-size-xs: 0.8rem;          /* 12.8px */
    --bc-font-size-sm: 0.9rem;          /* 14.4px */
    --bc-font-size-base: 1rem;          /* 16px */
    --bc-font-size-lg: 1.125rem;        /* 18px */
    --bc-font-size-xl: 1.5rem;          /* 24px */
    --bc-font-size-2xl: 2rem;           /* 32px */
    --bc-font-size-3xl: 2.5rem;         /* 40px */
    --bc-font-size-4xl: 3.5rem;         /* 56px */
    
    /* Line Heights */
    --bc-line-height-tight: 1.2;
    --bc-line-height-base: 1.6;
    --bc-line-height-relaxed: 1.8;
    
    /* Font Weights */
    --bc-font-weight-light: 300;
    --bc-font-weight-normal: 400;
    --bc-font-weight-semibold: 600;
    --bc-font-weight-bold: 700;
    
    /* Letter Spacing */
    --bc-letter-spacing-tight: -0.5px;
    --bc-letter-spacing-normal: 0;
    --bc-letter-spacing-wide: 1px;
    --bc-letter-spacing-wider: 2px;
    
    /* --- Layout & Spacing --- */
    --bc-container-max: 1200px;
    --bc-container-padding: 20px;
    
    /* Spacing Scale (8px base) */
    --bc-spacing-xs: 0.5rem;    /* 8px */
    --bc-spacing-sm: 1rem;      /* 16px */
    --bc-spacing-md: 1.5rem;    /* 24px */
    --bc-spacing-lg: 2rem;      /* 32px */
    --bc-spacing-xl: 3rem;      /* 48px */
    --bc-spacing-2xl: 5rem;     /* 80px */
    
    /* Section Padding */
    --bc-section-padding-mobile: 50px;
    --bc-section-padding-desktop: 80px;
    
    /* --- Borders & Radius --- */
    --bc-border-width: 1px;
    --bc-border-width-thick: 4px;
    --bc-radius-sm: 4px;
    --bc-radius-md: 5px;
    --bc-radius-lg: 8px;
    
    /* --- Shadows --- */
    --bc-shadow-sm: 0 5px 10px rgba(0, 0, 0, 0.05);
    --bc-shadow-md: 0 10px 20px rgba(0, 0, 0, 0.1);
    --bc-shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.1);
    --bc-shadow-focus: 0 0 0 3px rgba(140, 123, 117, 0.1);
    
    /* --- Transitions --- */
    --bc-transition-fast: 0.2s ease;
    --bc-transition-base: 0.3s ease;
    --bc-transition-slow: 0.5s ease;
    
    /* --- Z-Index Scale --- */
    --bc-z-base: 1;
    --bc-z-dropdown: 100;
    --bc-z-sticky: 500;
    --bc-z-modal: 1000;
    --bc-z-tooltip: 1500;
}


/* ============================================================================
   2. RESET & BASE STYLES
   ============================================================================ */

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

html {
    font-size: 16px; /* Base für rem-Einheiten */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--bc-font-sans);
    font-size: var(--bc-font-size-base);
    line-height: var(--bc-line-height-base);
    color: var(--bc-color-text);
    background-color: var(--bc-color-white);
    overflow-x: hidden;
}

/* ============================================================================
   3. TYPOGRAFIE
   ============================================================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--bc-font-serif);
    font-weight: var(--bc-font-weight-normal);
    line-height: var(--bc-line-height-tight);
    margin-bottom: 1rem;
    color: var(--bc-color-text);
}

h1 {
    font-size: var(--bc-font-size-4xl);
    margin-bottom: 1.5rem;
}

h2 {
    font-size: var(--bc-font-size-2xl);
    color: var(--bc-color-primary);
}

h3 {
    font-size: var(--bc-font-size-xl);
}

h4 {
    font-size: var(--bc-font-size-lg);
    font-weight: var(--bc-font-weight-semibold);
}

p {
    margin-bottom: 1rem;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--bc-transition-base);
}

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

ul, ol {
    list-style: none;
}

/* Text Utilities */
.text-serif { font-family: var(--bc-font-serif); }
.text-sans { font-family: var(--bc-font-sans); }
.text-muted { color: var(--bc-color-text-muted); }
.text-primary { color: var(--bc-color-primary); }
.text-accent { color: var(--bc-color-accent); }

.text-uppercase {
    text-transform: uppercase;
    letter-spacing: var(--bc-letter-spacing-wider);
}

.text-center { text-align: center; }
.text-italic { font-style: italic; }


/* ============================================================================
   4. LAYOUT UTILITIES
   ============================================================================ */

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

.section-padding {
    padding: var(--bc-section-padding-mobile) 0;
}

@media (min-width: 768px) {
    .section-padding {
        padding: var(--bc-section-padding-desktop) 0;
    }
}

/* Flexbox Utilities */
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--bc-spacing-sm); }
.gap-md { gap: var(--bc-spacing-md); }
.gap-lg { gap: var(--bc-spacing-lg); }


/* ============================================================================
   5. KOMPONENTEN
   ============================================================================ */

/* --- Buttons --- */
.bc-btn {
    display: inline-block;
    padding: 15px 30px;
    font-family: var(--bc-font-sans);
    font-size: var(--bc-font-size-base);
    font-weight: var(--bc-font-weight-bold);
    text-transform: uppercase;
    letter-spacing: var(--bc-letter-spacing-wide);
    border: none;
    border-radius: var(--bc-radius-sm);
    cursor: pointer;
    transition: all var(--bc-transition-base);
    text-align: center;
}

.bc-btn-primary {
    background-color: var(--bc-color-primary);
    color: var(--bc-color-white);
}

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

.bc-btn-outline {
    background-color: transparent;
    color: var(--bc-color-primary);
    border: 2px solid var(--bc-color-primary);
}

.bc-btn-outline:hover {
    background-color: var(--bc-color-primary);
    color: var(--bc-color-white);
}

.bc-btn-full {
    width: 100%;
}

/* --- Cards --- */
.bc-card {
    background: var(--bc-color-white);
    border-radius: var(--bc-radius-lg);
    box-shadow: var(--bc-shadow-lg);
    padding: 40px;
}

.bc-card-sticky {
    position: sticky;
    top: 100px;
}

/* --- Info Box --- */
.bc-info-box {
    background: var(--bc-color-white);
    padding: 20px;
    border-left: var(--bc-border-width-thick) solid var(--bc-color-primary);
    box-shadow: var(--bc-shadow-sm);
    margin-top: var(--bc-spacing-lg);
}

/* --- Lists --- */
.bc-list-icon {
    list-style: none;
}

.bc-list-icon li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.bc-list-icon i {
    color: var(--bc-color-accent);
    width: 25px;
    margin-top: 5px;
    margin-right: 15px;
}


/* ============================================================================
   6. FORM ELEMENTS
   ============================================================================ */

.bc-form-group {
    margin-bottom: var(--bc-spacing-md);
}

.bc-form-label {
    display: block;
    margin-bottom: 8px;
    font-size: var(--bc-font-size-sm);
    font-weight: var(--bc-font-weight-semibold);
    color: var(--bc-color-text);
}

.bc-form-input,
.bc-form-select,
.bc-form-textarea {
    width: 100%;
    padding: 12px 15px;
    font-family: var(--bc-font-sans);
    font-size: var(--bc-font-size-base);
    color: var(--bc-color-text);
    background-color: #fcfcfc;
    border: var(--bc-border-width) solid var(--bc-color-border-light);
    border-radius: var(--bc-radius-sm);
    transition: all var(--bc-transition-base);
}

.bc-form-input:focus,
.bc-form-select:focus,
.bc-form-textarea:focus {
    outline: none;
    border-color: var(--bc-color-primary);
    background-color: var(--bc-color-white);
    box-shadow: var(--bc-shadow-focus);
}

.bc-form-input::placeholder,
.bc-form-textarea::placeholder {
    color: var(--bc-color-text-muted);
    opacity: 0.7;
}

.bc-form-row {
    display: flex;
    gap: var(--bc-spacing-md);
}

@media (max-width: 768px) {
    .bc-form-row {
        flex-direction: column;
        gap: 0;
    }
}


/* ============================================================================
   7. ANIMATIONS
   ============================================================================ */

@keyframes bc-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bc-fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.bc-animate-fadeInUp {
    animation: bc-fadeInUp 0.8s ease-out;
}

.bc-animate-fadeIn {
    animation: bc-fadeIn 0.5s ease-out;
}

/* Stagger Animation Delays */
.bc-animate-delay-1 { animation-delay: 0.2s; animation-fill-mode: backwards; }
.bc-animate-delay-2 { animation-delay: 0.4s; animation-fill-mode: backwards; }
.bc-animate-delay-3 { animation-delay: 0.6s; animation-fill-mode: backwards; }


/* ============================================================================
   8. RESPONSIVE BREAKPOINTS
   ============================================================================ */

@media (max-width: 768px) {
    :root {
        --bc-font-size-4xl: 2.5rem;  /* 40px statt 56px */
        --bc-font-size-2xl: 1.75rem; /* 28px statt 32px */
    }
    
    .container {
        padding: 0 15px;
    }
}


/* ============================================================================
   9. ACCESSIBILITY
   ============================================================================ */

/* Focus Styles für Keyboard-Navigation */
*:focus-visible {
    outline: 2px solid var(--bc-color-primary);
    outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Screen Reader Only */
.bc-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}


/* ============================================================================
   10. PRINT STYLES
   ============================================================================ */

@media print {
    body {
        background: white;
        color: black;
    }
    
    .bc-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}