/* AEOFLUX Demo Page - Schwarz-Weiß Design System */

/* CSS Custom Properties - Design Tokens */
:root {
    /* Farb-System */
    --black: #000000;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    /* Typografie */
    --text-xs: clamp(0.75rem, 0.95vw, 0.875rem);
    --text-sm: clamp(0.875rem, 1.1vw, 1rem);
    --text-base: clamp(1rem, 1.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.5vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 2.5vw, 2rem);
    --text-3xl: clamp(2rem, 3.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 5vw, 4rem);
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;
    
    /* Schatten */
    --shadow-brutal: 8px 8px 0px var(--black);
    --shadow-depth: 0 32px 64px rgba(0, 0, 0, 0.15), 0 16px 32px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 24px 48px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 40px 80px rgba(0, 0, 0, 0.2), 0 16px 32px rgba(0, 0, 0, 0.15);
    --shadow-text: 4px 4px 8px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--black);
    color: var(--white);
    min-height: 100vh;
    line-height: 1.6;
    font-size: var(--text-base);
    overflow-x: hidden;
}

/* Demo Container - Brutal Schwarz-Weiß Design */
.demo-container {
    background: var(--white);
    color: var(--black);
    border: 4px solid var(--black);
    box-shadow: var(--shadow-brutal);
    margin: var(--space-xl);
    max-width: 800px;
    width: calc(100% - var(--space-2xl));
    position: relative;
    overflow: hidden;
    animation: slideUp 0.6s ease-out;
}

/* Centered Layout */
.demo-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    position: relative;
}

/* Background Pattern - Subtil */
.demo-wrapper::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(45deg, var(--gray-900) 25%, transparent 25%),
        linear-gradient(-45deg, var(--gray-900) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--gray-900) 75%),
        linear-gradient(-45deg, transparent 75%, var(--gray-900) 75%);
    background-size: 100px 100px;
    background-position: 0 0, 0 50px, 50px -50px, -50px 0px;
    opacity: 0.03;
    z-index: -1;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Header Section */
.demo-header {
    background: var(--black);
    color: var(--white);
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* Geometric Background Element */
.demo-header::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -25%;
    width: 200px;
    height: 200px;
    background: var(--gray-900);
    transform: translateY(-50%) rotate(45deg);
    opacity: 0.1;
    z-index: 0;
}

.demo-header > * {
    position: relative;
    z-index: 1;
}

/* Logo */
.logo {
    font-size: var(--text-4xl);
    font-weight: 900;
    letter-spacing: -0.05em;
    margin-bottom: var(--space-sm);
    text-shadow: var(--shadow-text);
    line-height: 0.9;
}

.subtitle {
    color: var(--gray-300);
    font-size: var(--text-lg);
    font-weight: 300;
    margin-bottom: var(--space-xl);
    letter-spacing: 0.02em;
}

/* Main Content */
.demo-content {
    padding: var(--space-2xl) var(--space-xl);
}

.demo-title {
    font-size: var(--text-3xl);
    font-weight: 900;
    color: var(--black);
    margin-bottom: var(--space-md);
    line-height: 0.9;
    letter-spacing: -0.02em;
}

.demo-description {
    color: var(--gray-700);
    font-size: var(--text-lg);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    font-weight: 400;
}

/* Features List - Brutal Style */
.features-list {
    background: var(--gray-50);
    border: 3px solid var(--black);
    box-shadow: 6px 6px 0px var(--gray-200);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    position: relative;
}

.features-list h4 {
    color: var(--black);
    font-size: var(--text-xl);
    font-weight: 800;
    margin-bottom: var(--space-lg);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.features-list ul {
    list-style: none;
    padding: 0;
}

.features-list li {
    color: var(--gray-700);
    margin: var(--space-md) 0;
    padding-left: var(--space-xl);
    position: relative;
    font-weight: 500;
    line-height: 1.6;
}

/* Brutal Checkmarks */
.features-list li:before {
    content: "█";
    color: var(--black);
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 0;
    font-size: var(--text-lg);
}

/* URL Form - Brutal Input Design */
.url-form {
    margin: var(--space-xl) 0;
    position: relative;
}

.url-input {
    width: 100%;
    padding: var(--space-lg) var(--space-xl);
    border: 4px solid var(--black);
    background: var(--white);
    color: var(--black);
    font-size: var(--text-lg);
    font-weight: 600;
    transition: var(--transition-base);
    margin-bottom: var(--space-lg);
    box-shadow: 4px 4px 0px var(--gray-200);
    outline: none;
}

.url-input:focus {
    box-shadow: 8px 8px 0px var(--gray-400);
    transform: translate(-2px, -2px);
}

.url-input::placeholder {
    color: var(--gray-500);
    font-weight: 400;
}

/* Demo Button - Brutal CTA */
.demo-button {
    background: var(--black);
    color: var(--white);
    border: 4px solid var(--black);
    padding: var(--space-lg) var(--space-xl);
    font-size: var(--text-lg);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition-bounce);
    width: 100%;
    box-shadow: var(--shadow-brutal);
    position: relative;
    overflow: hidden;
}

.demo-button:hover:not(:disabled) {
    transform: translate(-4px, -4px);
    box-shadow: 12px 12px 0px var(--gray-400);
}

.demo-button:active:not(:disabled) {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0px var(--gray-400);
}

.demo-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-brutal) !important;
}

/* Error Message */
.error-message {
    background: var(--white);
    color: var(--black);
    border: 3px solid var(--black);
    padding: var(--space-md);
    margin: var(--space-md) 0;
    display: none;
    font-weight: 600;
    box-shadow: 4px 4px 0px var(--gray-300);
}

/* Demo Warning Box - Markantes Rotes Kästchen */
.demo-warning {
    background: #ff0000;
    color: var(--white);
    border: 4px solid var(--black);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    font-weight: 800;
    font-size: var(--text-lg);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.4;
    box-shadow: 8px 8px 0px var(--black);
    position: relative;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 8px 8px 0px var(--black);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 12px 12px 0px var(--black);
    }
}

.demo-warning::before {
    content: "⚠️";
    font-size: var(--text-2xl);
    margin-right: var(--space-sm);
    display: inline-block;
    animation: bounce 1.5s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Disclaimer - Subtle but Clear */
.disclaimer {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 2px solid var(--gray-200);
    font-size: var(--text-sm);
    color: var(--gray-600);
    line-height: 1.6;
    font-weight: 400;
}

.disclaimer strong {
    color: var(--black);
    font-weight: 700;
}

/* Login Link */
.login-link {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 2px solid var(--gray-200);
    text-align: center;
}

.login-link a {
    color: var(--black);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 2px solid var(--black);
    padding-bottom: 2px;
    transition: var(--transition-base);
}

.login-link a:hover {
    background: var(--black);
    color: var(--white);
    padding: 4px 8px;
    border-bottom: none;
}

/* AEO Tooltip Buttons */
.btn-link {
    background: none;
    border: none;
    color: var(--gray-600);
    cursor: pointer;
    font-size: 0.8rem;
    margin-left: 4px;
    transition: var(--transition-fast);
}

.btn-link:hover {
    color: var(--black);
    transform: scale(1.1);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .demo-wrapper {
        padding: var(--space-sm);
    }
    
    .demo-container {
        margin: var(--space-sm);
        width: calc(100% - var(--space-lg));
    }
    
    .demo-header {
        padding: var(--space-xl) var(--space-lg);
    }
    
    .demo-content {
        padding: var(--space-xl) var(--space-lg);
    }
    
    .logo {
        font-size: var(--text-3xl);
    }
    
    .demo-title {
        font-size: var(--text-2xl);
    }
    
    .features-list li {
        font-size: var(--text-sm);
    }
    
    .url-input,
    .demo-button {
        padding: var(--space-md) var(--space-lg);
        font-size: var(--text-base);
    }
}

@media (max-width: 480px) {
    .demo-wrapper {
        padding: var(--space-xs);
    }
    
    .demo-container {
        margin: var(--space-xs);
        width: calc(100% - var(--space-sm));
        box-shadow: 6px 6px 0px var(--gray-400);
    }
    
    .demo-header::after {
        width: 150px;
        height: 150px;
    }
    
    .url-input:focus {
        box-shadow: 6px 6px 0px var(--gray-400);
        transform: translate(-1px, -1px);
    }
    
    .demo-button:hover:not(:disabled) {
        transform: translate(-2px, -2px);
        box-shadow: 8px 8px 0px var(--gray-400);
    }
}

/* Loading State */
.demo-button.loading {
    position: relative;
    color: transparent;
}

.demo-button.loading::after {
    content: "🔄";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --gray-200: #cccccc;
        --gray-300: #aaaaaa;
        --gray-400: #888888;
        --gray-600: #444444;
        --gray-700: #222222;
    }
    
    .demo-button:hover:not(:disabled) {
        box-shadow: 12px 12px 0px var(--black);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .demo-button:hover:not(:disabled) {
        transform: none;
    }
    
    .url-input:focus {
        transform: none;
    }
}
/* Language Switcher */
.language-switcher {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 1000;
    display: flex;
    gap: 2px;
    background: var(--white);
    border: 3px solid var(--black);
    box-shadow: var(--shadow-brutal);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border: none;
    background: var(--white);
    cursor: pointer;
    transition: var(--transition-base);
    text-decoration: none;
    color: var(--black);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lang-btn:hover, .lang-btn.active {
    background: var(--black);
    color: var(--white);
}

.flag {
    width: 20px;
    height: 14px;
    border: 2px solid var(--black);
}

.flag-de {
    background: linear-gradient(to bottom, #000 33%, #666 33%, #666 66%, #ccc 66%);
}

.flag-en {
    background: var(--gray-300);
}