/* ==============================================
   DESIGN SYSTEM - Globale CSS Variablen
   Morfis Immobilien
   ============================================== */

@import url('https://fonts.googleapis.com/css2?family=Jost:wght@300;400;500;600;700&display=swap');

/* ==============================================
   1. CSS CUSTOM PROPERTIES (Variablen)
   ============================================== */

:root {
    /* ------------------------------------------
       FARBEN - Primär
       ------------------------------------------ */
    --color-primary: #063233;
    --color-primary-light: #0a4445;
    --color-primary-dark: #041e1f;
    --color-primary-rgb: 6, 50, 51; /* Für rgba() Verwendung */
    
    /* ------------------------------------------
       FARBEN - Akzent (Gold/Beige)
       ------------------------------------------ */
    --color-accent: #D8AA80;
    --color-accent-light: #e4bc96;
    --color-accent-dark: #c6a62f;
    --color-accent-rgb: 216, 170, 128;
    
    /* ------------------------------------------
       FARBEN - Text
       ------------------------------------------ */
    --color-text: #2a2a2a;
    --color-text-light: #666666;
    --color-text-muted: #888888;
    --color-text-inverse: #ffffff;
    
    /* ------------------------------------------
       FARBEN - Hintergründe
       ------------------------------------------ */
    --color-bg: #ffffff;
    --color-bg-alt: #fafafa;
    --color-bg-dark: #f5f5f5;
    --color-bg-darker: #e8e8e8;
    
    /* ------------------------------------------
       FARBEN - Semantisch (Status)
       ------------------------------------------ */
    --color-success: #10b981;
    --color-success-light: #d4edda;
    --color-success-dark: #155724;
    
    --color-error: #ef4444;
    --color-error-light: #f8d7da;
    --color-error-dark: #721c24;
    
    --color-warning: #f59e0b;
    --color-warning-light: #fff3cd;
    --color-warning-dark: #856404;
    
    --color-info: #3182ce;
    --color-info-light: #cce5ff;
    --color-info-dark: #004085;
    
    /* ------------------------------------------
       FARBEN - Grautöne
       ------------------------------------------ */
    --color-gray-50: #fafafa;
    --color-gray-100: #f5f5f5;
    --color-gray-200: #e8e8e8;
    --color-gray-300: #d4d4d4;
    --color-gray-400: #a3a3a3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;
    
    /* ------------------------------------------
       FARBEN - Border
       ------------------------------------------ */
    --color-border: #e8e8e8;
    --color-border-light: #f0f0f0;
    --color-border-dark: #d4d4d4;
    
    /* ------------------------------------------
       FARBEN - Overlay
       ------------------------------------------ */
    --color-overlay-light: rgba(0, 0, 0, 0.5);
    --color-overlay-dark: rgba(0, 0, 0, 0.7);
    
    /* ------------------------------------------
       TYPOGRAFIE - Schriftfamilien
       ------------------------------------------ */
    --font-primary: 'Jost', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-secondary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Mono', 'Droid Sans Mono', monospace;
    
    /* ------------------------------------------
       TYPOGRAFIE - Schriftgrößen
       ------------------------------------------ */
    --font-size-xs: 0.75rem;    /* 12px */
    --font-size-sm: 0.875rem;   /* 14px */
    --font-size-base: 1rem;     /* 16px */
    --font-size-md: 1.125rem;   /* 18px */
    --font-size-lg: 1.25rem;    /* 20px */
    --font-size-xl: 1.5rem;     /* 24px */
    --font-size-2xl: 1.75rem;   /* 28px */
    --font-size-3xl: 2rem;      /* 32px */
    --font-size-4xl: 2.5rem;    /* 40px */
    --font-size-5xl: 3rem;      /* 48px */
    --font-size-6xl: 3.5rem;    /* 56px */
    
    /* ------------------------------------------
       TYPOGRAFIE - Schriftgewichte
       ------------------------------------------ */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* ------------------------------------------
       TYPOGRAFIE - Zeilenhöhen
       ------------------------------------------ */
    --line-height-tight: 1.2;
    --line-height-snug: 1.4;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;
    --line-height-loose: 2;
    
    /* ------------------------------------------
       TYPOGRAFIE - Buchstabenabstand
       ------------------------------------------ */
    --letter-spacing-tight: -0.5px;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.5px;
    --letter-spacing-wider: 1px;
    --letter-spacing-widest: 2px;
    
    /* ------------------------------------------
       ABSTÄNDE - Spacing Scale
       ------------------------------------------ */
    --spacing-0: 0;
    --spacing-1: 0.25rem;   /* 4px */
    --spacing-2: 0.5rem;    /* 8px */
    --spacing-3: 0.75rem;   /* 12px */
    --spacing-4: 1rem;      /* 16px */
    --spacing-5: 1.25rem;   /* 20px */
    --spacing-6: 1.5rem;    /* 24px */
    --spacing-8: 2rem;      /* 32px */
    --spacing-10: 2.5rem;   /* 40px */
    --spacing-12: 3rem;     /* 48px */
    --spacing-16: 4rem;     /* 64px */
    --spacing-20: 5rem;     /* 80px */
    --spacing-24: 6rem;     /* 96px */
    --spacing-32: 8rem;     /* 128px */
    
    /* ------------------------------------------
       LAYOUT - Container & Breiten
       ------------------------------------------ */
    --container-xs: 480px;
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1200px;
    --container-2xl: 1400px;
    --container-full: 100%;
    
    /* ------------------------------------------
       LAYOUT - Content Padding
       ------------------------------------------ */
    --content-padding-mobile: 3%;
    --content-padding-tablet: 4%;
    --content-padding-desktop: 5%;
    
    /* ------------------------------------------
       BORDER RADIUS
       ------------------------------------------ */
    --radius-none: 0;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-full: 9999px;
    
    /* ------------------------------------------
       SCHATTEN (Box Shadows)
       ------------------------------------------ */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 20px 60px rgba(0, 0, 0, 0.2);
    
    /* Colored Shadows */
    --shadow-primary: 0 4px 15px rgba(6, 50, 51, 0.2);
    --shadow-primary-lg: 0 8px 30px rgba(6, 50, 51, 0.3);
    --shadow-accent: 0 4px 15px rgba(216, 170, 128, 0.3);
    
    /* ------------------------------------------
       TRANSITIONEN
       ------------------------------------------ */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-bounce: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* ------------------------------------------
       Z-INDEX Scale
       ------------------------------------------ */
    --z-below: -1;
    --z-base: 0;
    --z-dropdown: 100;
    --z-sticky: 500;
    --z-fixed: 1000;
    --z-modal-backdrop: 1500;
    --z-modal: 2000;
    --z-popover: 2500;
    --z-tooltip: 3000;
    --z-cookie-banner: 9998;
    --z-max: 9999;
    
    /* ------------------------------------------
       NAVBAR
       ------------------------------------------ */
    --navbar-height: 100px;
    --navbar-height-mobile: 80px;
    --navbar-height-small: 70px;
    
    /* ------------------------------------------
       BREAKPOINTS (für JS Reference)
       ------------------------------------------ */
    --breakpoint-sm: 480px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 1024px;
    --breakpoint-xl: 1200px;
    --breakpoint-2xl: 1400px;
}

/* ==============================================
   2. DARK MODE VARIABLEN (Optional)
   ============================================== */

@media (prefers-color-scheme: dark) {
    :root.auto-dark {
        --color-bg: #1a1a1a;
        --color-bg-alt: #242424;
        --color-bg-dark: #0f0f0f;
        --color-text: #e5e5e5;
        --color-text-light: #a3a3a3;
        --color-border: #333333;
    }
}

/* ==============================================
   3. GLOBALE RESET & BASE STYLES
   ============================================== */

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==============================================
   4. TYPOGRAFIE UTILITIES
   ============================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-tight);
    color: var(--color-text);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
    margin-bottom: var(--spacing-4);
}

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

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

/* ==============================================
   5. LAYOUT UTILITIES
   ============================================== */

.container {
    width: 100%;
    max-width: var(--container-xl);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-5);
    padding-right: var(--spacing-5);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }
.container-full { max-width: 100%; }

/* ==============================================
   6. BUTTON SYSTEM
   ============================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.2);
}

/* Button Varianten */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-color: var(--color-primary);
}

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

.btn-accent {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
}

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

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

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border-color: transparent;
}

.btn-ghost:hover {
    background: var(--color-bg-alt);
}

/* Button Größen */
.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-md);
}

/* ==============================================
   7. FORM ELEMENTS
   ============================================== */

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-5);
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.1);
}

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

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* ==============================================
   8. CARD SYSTEM
   ============================================== */

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-bounce);
}

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

.card-body {
    padding: var(--spacing-6);
}

.card-header {
    padding: var(--spacing-4) var(--spacing-6);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-alt);
}

.card-footer {
    padding: var(--spacing-4) var(--spacing-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-alt);
}

/* ==============================================
   9. BADGE SYSTEM
   ============================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    border-radius: var(--radius-full);
}

.badge-primary {
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
}

.badge-success {
    background: var(--color-success);
    color: var(--color-text-inverse);
}

.badge-error {
    background: var(--color-error);
    color: var(--color-text-inverse);
}

.badge-warning {
    background: var(--color-warning);
    color: var(--color-text-inverse);
}

/* ==============================================
   10. STATUS BADGES (Immobilien)
   ============================================== */

.status-badge {
    display: inline-block;
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    border-radius: var(--radius-md);
}

.status-available {
    background: var(--color-success);
    color: var(--color-text-inverse);
}

.status-sold {
    background: var(--color-error);
    color: var(--color-text-inverse);
}

.status-rented {
    background: var(--color-warning);
    color: var(--color-text-inverse);
}

/* ==============================================
   11. SECTION STYLES
   ============================================== */

.section {
    padding: var(--spacing-20) var(--content-padding-desktop);
}

.section-sm {
    padding: var(--spacing-12) var(--content-padding-desktop);
}

.section-lg {
    padding: var(--spacing-24) var(--content-padding-desktop);
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-dark {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-12);
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin-bottom: var(--spacing-4);
}

.section-subtitle {
    font-size: var(--font-size-md);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ==============================================
   12. UTILITY CLASSES
   ============================================== */

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* Text Colors */
.text-primary { color: var(--color-primary); }
.text-accent { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-inverse { color: var(--color-text-inverse); }

/* Background Colors */
.bg-primary { background-color: var(--color-primary); }
.bg-accent { background-color: var(--color-accent); }
.bg-alt { background-color: var(--color-bg-alt); }

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

/* Flexbox */
.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.flex-col {
    flex-direction: column;
}

.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }

/* Margins */
.m-auto { margin: auto; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mt-4 { margin-top: var(--spacing-4); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mt-8 { margin-top: var(--spacing-8); }
.mb-8 { margin-bottom: var(--spacing-8); }

/* Padding */
.p-0 { padding: 0; }
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }

/* Border Radius */
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* ==============================================
   13. RESPONSIVE BREAKPOINTS
   ============================================== */

/* Mobile First - Default styles apply to mobile */

/* Tablet and up */
@media (min-width: 768px) {
    :root {
        --font-size-4xl: 2.75rem;
        --font-size-5xl: 3.25rem;
    }
    
    .container {
        padding-left: var(--spacing-8);
        padding-right: var(--spacing-8);
    }
    
    .section {
        padding: var(--spacing-20) var(--content-padding-tablet);
    }
}

/* Desktop and up */
@media (min-width: 1024px) {
    :root {
        --font-size-4xl: 3rem;
        --font-size-5xl: 3.5rem;
    }
    
    .section {
        padding: var(--spacing-24) var(--content-padding-desktop);
    }
}

/* Large Desktop */
@media (min-width: 1400px) {
    .container {
        padding-left: var(--spacing-10);
        padding-right: var(--spacing-10);
    }
}

/* ==============================================
   14. PRINT STYLES
   ============================================== */

@media print {
    :root {
        --color-primary: #000000;
        --color-text: #000000;
        --color-bg: #ffffff;
    }
    
    .no-print {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
    }
    
    a {
        text-decoration: underline;
    }
}

/* ==============================================
   15. ANIMATIONS
   ============================================== */

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

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* Animation Utilities */
.animate-fade-in {
    animation: fadeIn var(--transition-normal) ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-normal) ease forwards;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* ==============================================
   16. ACCESSIBILITY
   ============================================== */

/* Focus Visible */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-3) var(--spacing-6);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border-radius: var(--radius-md);
    z-index: var(--z-max);
    transition: top var(--transition-normal);
}

.skip-link:focus {
    top: var(--spacing-4);
}

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

/* ==============================================
   17. TOUCH OPTIMIZATION (Mobile)
   ============================================== */

@media (hover: none) {
    /* Größere Touch-Targets */
    .btn,
    .form-input,
    .form-select {
        min-height: 44px;
    }
    
    /* Verhindert iOS Zoom bei Input-Focus */
    .form-input,
    .form-select,
    .form-textarea {
        font-size: 16px;
    }
    
    /* Active States statt Hover */
    .btn:active {
        transform: scale(0.98);
    }
    
    .card:active {
        transform: scale(0.98);
    }
}

/* Safe Area für Notch-Geräte */
@supports (padding: env(safe-area-inset-bottom)) {
    .section:last-child {
        padding-bottom: calc(var(--spacing-20) + env(safe-area-inset-bottom));
    }
}