/* ==========================================
   DICO NEXUS - BASE STYLES
   Hauptfarben: Dunkelblau (#1a2f5a) & Cyan (#5dd4d4)
   ========================================== */

:root {
    /* DICO Farben */
    --primary-dark: #1a2f5a;
    --primary-light: #2a4070;
    --accent-cyan: #5dd4d4;
    --accent-cyan-dark: #4ac4c4;
    --background-dark: #0a1628;
    --background-gradient: linear-gradient(135deg, #0a1628 0%, #1a2f5a 100%);
    
    /* Text Farben */
    --text-light: #ffffff;
    --text-muted: #a0aec0;
    --text-dark: #2d3748;
    
    /* UI Farben */
    --border-color: #2d4a7c;
    --card-bg: rgba(26, 47, 90, 0.95);
    --card-bg-solid: #1a2f5a;
    --hover-bg: rgba(93, 212, 212, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-cyan: 0 0 20px rgba(93, 212, 212, 0.3);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================
   LIGHT MODE
   ========================================== */

[data-theme="light"] {
    --primary-dark:        #dce8fa;
    --primary-light:       #c8d9f5;
    --background-dark:     #eef3fb;
    --background-gradient: linear-gradient(135deg, #eef3fb 0%, #dce8fa 100%);

    --text-primary:        #0d1f3c;
    --text-secondary:      #2e4a6a;
    --text-light:          #0d1f3c;
    --text-muted:          #3a5070;
    --text-dark:           #060f1e;

    --border-color:        #b0c8e8;
    --card-bg:             rgba(255, 255, 255, 0.97);
    --card-bg-solid:       #ffffff;
    --hover-bg:            rgba(93, 212, 212, 0.12);

    --shadow-sm:           0 2px 4px rgba(0, 0, 0, 0.07);
    --shadow-md:           0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg:           0 8px 24px rgba(0, 0, 0, 0.14);
    --shadow-cyan:         0 0 20px rgba(93, 212, 212, 0.2);
}

/* ==========================================
   SCROLLBAR
   ========================================== */

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(10, 22, 40, 0.8);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-cyan);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan-dark);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--accent-cyan) rgba(10, 22, 40, 0.8);
}

/* RESET & BASE */

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background-dark);
    background-image: none;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--text-light);
    line-height: 1.6;
    overflow: hidden;
    height: 100vh;
}

/* Overlay für bessere Lesbarkeit */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 22, 40, 0.85);
    z-index: -1;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-light);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

h4 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

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

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

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

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-cyan);
    color: var(--primary-dark);
    box-shadow: var(--shadow-cyan);
}

.btn-primary:hover {
    background: var(--accent-cyan-dark);
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(93, 212, 212, 0.5);
}

.btn-secondary {
    background: var(--card-bg-solid);
    color: var(--text-light);
    border: 2px solid var(--accent-cyan);
}

.btn-secondary:hover {
    background: var(--accent-cyan);
    color: var(--primary-dark);
}

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

.btn-outline:hover {
    background: var(--accent-cyan);
    color: var(--primary-dark);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ==========================================
   FORMS
   ========================================== */

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-light);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
    background: rgba(26, 47, 90, 0.4);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-light);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(93, 212, 212, 0.2);
}

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

/* ==========================================
   CARDS
   ========================================== */

.card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-lg), var(--shadow-cyan);
}

.card-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 1.5rem;
    color: var(--accent-cyan);
    margin: 0;
}

.card-body {
    color: var(--text-light);
}

/* ==========================================
   LOADING SPINNER
   ========================================== */

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    gap: var(--spacing-md);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading p {
    color: var(--accent-cyan);
    font-size: 1.125rem;
    font-weight: 500;
}

/* ==========================================
   UTILITIES
   ========================================== */

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

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

.text-cyan {
    color: var(--accent-cyan);
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn var(--transition-normal);
}

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

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .card {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 13px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* ==========================================
   LIGHT MODE OVERRIDES – BASE
   ========================================== */

[data-theme="light"] body {
    background: var(--background-dark);
    color: var(--text-light);
}

[data-theme="light"] body::before {
    background: rgba(238, 243, 251, 0.6);
}