/**
 * School Story Tool - Stylesheet
 * Mit separaten Farbschemas für Primarstufe und Sekundarstufe
 */

/* ========== CSS-Variablen ========== */
:root {
    /* Primarstufe (Kinderfreundlich) */
    --primary-light-blue: #4FC3F7;
    --primary-light-green: #81C784;
    --primary-hover: #29B6F6;
    --primary-bg: #F0F8FF;
    
    /* Sekundarstufe (Ernster) */
    --secondary-dark-blue: #1976D2;
    --secondary-blue-gray: #546E7A;
    --secondary-hover: #1565C0;
    --secondary-bg: #ECEFF1;
    
    /* Gemeinsame Farben */
    --white: #FFFFFF;
    --black: #000000;
    --gray-light: #F5F5F5;
    --gray-medium: #CCCCCC;
    --gray-dark: #666666;
    --border-color: #DDDDDD;
    --error-red: #F44336;
    --success-green: #4CAF50;
    
    /* Schriftarten */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    
    /* Abstände */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 30px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* ========== Reset & Basis ========== */
* {
    box-sizing: border-box;
}

.sst-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--black);
}

/* ========== Header ========== */
.sst-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-color);
}

.sst-header h1 {
    margin: 0;
    font-size: 28px;
    font-weight: 700;
}

.sst-language-switcher {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sst-language-switcher label {
    font-size: 20px;
}

.sst-select-small {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-small);
    background: var(--white);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.sst-select-small:hover {
    border-color: var(--gray-dark);
}

/* ========== Loading Overlay ========== */
.sst-loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    gap: var(--spacing-lg);
}

.sst-loading p {
    color: var(--white);
    font-size: var(--font-size-large);
    margin: 0;
}

.sst-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--gray-light);
    border-top: 5px solid var(--primary-light-blue);
    border-radius: 50%;
    animation: sst-spin 1s linear infinite;
}

@keyframes sst-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========== Level Toggle (Radio Buttons) ========== */
.sst-level-toggle {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.sst-level-toggle input[type="radio"] {
    display: none;
}

.sst-level-label {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    border: 3px solid var(--border-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
    font-size: var(--font-size-large);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--white);
}

.sst-level-label:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.sst-level-label .sst-icon {
    font-size: 24px;
}

/* Primarstufe Theme */
#sst-level-primary:checked + .sst-level-label.sst-primary-theme {
    background: var(--primary-light-blue);
    color: var(--white);
    border-color: var(--primary-light-blue);
}

/* Sekundarstufe Theme */
#sst-level-secondary:checked + .sst-level-label.sst-secondary-theme {
    background: var(--secondary-dark-blue);
    color: var(--white);
    border-color: var(--secondary-dark-blue);
}

/* ========== Tabs (Primarstufe / Sekundarstufe) ========== */
.sst-tab {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.sst-primary-theme {
    border-top: 4px solid var(--primary-light-blue);
}

.sst-secondary-theme {
    border-top: 4px solid var(--secondary-dark-blue);
}

.sst-welcome {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gray-light);
    border-radius: var(--radius-md);
}

.sst-welcome p {
    margin: 0;
    font-size: var(--font-size-large);
}

/* ========== Forms ========== */
.sst-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.sst-form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.sst-form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: var(--gray-dark);
}

.sst-form-group label .sst-icon {
    font-size: 18px;
}

.sst-input,
.sst-select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray-dark);     /* ✅ Grauer Border */
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-main);
    background-color: var(--gray-light);    /* ✅ Grauer Hintergrund */
    color: var(--gray-dark);                 /* ✅ Grauer Text */
    transition: all var(--transition-fast);  /* ✅ Alle Eigenschaften animieren */
}

.sst-input:focus,
.sst-select:focus {
    outline: none;
    border-color: var(--primary-light-blue);
    background-color: var(--white);          /* ✅ Weiß bei Focus */
    color: var(--black);                     /* ✅ Schwarz bei Focus */
}

.sst-secondary-theme .sst-input:focus,
.sst-secondary-theme .sst-select:focus {
    border-color: var(--secondary-dark-blue);
    background-color: var(--white);          /* ✅ Weiß bei Focus */
    color: var(--black);                     /* ✅ Schwarz bei Focus */
}

.sst-hint {
    font-size: var(--font-size-small);
    color: var(--gray-dark);
    margin: 0;
    font-style: italic;
}

/* ========== Buttons ========== */
.sst-btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-main);
}

.sst-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.sst-btn:active {
    transform: translateY(0);
}

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

/* Primary Button - Primarstufe */
.sst-primary-theme .sst-btn-primary {
    background: var(--primary-light-blue);
    color: var(--white);
}

.sst-primary-theme .sst-btn-primary:hover {
    background: var(--primary-hover);
}

/* Primary Button - Sekundarstufe */
.sst-secondary-theme .sst-btn-primary {
    background: var(--secondary-dark-blue);
    color: var(--white);
}

.sst-secondary-theme .sst-btn-primary:hover {
    background: var(--secondary-hover);
}

/* Secondary Button */
.sst-btn-secondary {
    background: var(--gray-light);
    color: var(--gray-dark);
}

.sst-btn-secondary:hover {
    background: var(--gray-medium);
}

/* Small Button */
.sst-btn-small {
    padding: 8px 16px;
    font-size: var(--font-size-small);
}

/* Text Button */
.sst-btn-text {
    background: transparent;
    color: var(--primary-light-blue);
    padding: 6px 12px;
}

.sst-btn-text:hover {
    background: var(--gray-light);
    transform: none;
}

/* ========== Story Screen ========== */
.sst-story-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gray-light);
    border-radius: var(--radius-md);
}

.sst-story-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-small);
    color: var(--gray-dark);
}

.sst-story-meta .sst-divider {
    color: var(--gray-medium);
}

#sst-story-title {
    font-weight: 700;
    color: var(--black);
}

/* ========== Kapitel ========== */
.sst-story-display {
    margin-bottom: var(--spacing-xl);
}

.sst-chapter {
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.sst-chapter-header {
    background: var(--primary-light-green);
    color: var(--white);
    padding: 12px 15px;
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    transition: background var(--transition-fast);
}

.sst-secondary-theme .sst-chapter-header {
    background: var(--secondary-blue-gray);
}

.sst-chapter-header:hover {
    opacity: 0.9;
}

.sst-collapse-icon {
    font-size: 12px;
    transition: transform var(--transition-fast);
}

.sst-chapter-content {
    padding: var(--spacing-lg);
    background: var(--white);
    line-height: 1.8;
    font-size: var(--font-size-base);
}

.sst-chapter-actions {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
}

/* ========== Kapitel-Navigation ========== */
.sst-chapter-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--gray-light);
    border-radius: var(--radius-md);
}

.sst-nav-btn {
    padding: 10px 15px;
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-small);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.sst-nav-btn:hover:not(:disabled) {
    background: var(--primary-light-blue);
    color: var(--white);
    border-color: var(--primary-light-blue);
}

.sst-nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.sst-chapter-indicator {
    font-size: var(--font-size-large);
    font-weight: 700;
    color: var(--gray-dark);
}

/* Suggestions Separator */
.sst-suggestions-separator {
    text-align: center;
    margin: var(--spacing-md) 0;
    color: var(--gray-medium);
    font-size: var(--font-size-small);
    font-weight: 600;
    position: relative;
}

.sst-suggestions-separator::before,
.sst-suggestions-separator::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    height: 1px;
    background: var(--border-color);
}

.sst-suggestions-separator::before {
    left: 0;
}

.sst-suggestions-separator::after {
    right: 0;
}

.sst-suggestions-separator span {
    background: var(--white);
    padding: 0 var(--spacing-sm);
    position: relative;
    z-index: 1;
}

/* Suggestions Container */
.sst-suggestions-dropdown-container {
    margin-bottom: var(--spacing-md);
}

/* Suggestions */
.sst-suggestions {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 2px dashed var(--border-color);
}

.sst-suggestions-title {
    font-weight: 600;
    color: var(--gray-dark);
    margin-bottom: var(--spacing-sm);
}

.sst-suggestions-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.sst-suggestions-list li {
    padding: var(--spacing-sm);
    background: var(--gray-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-small);
}

.sst-suggestions-list li:hover {
    background: var(--primary-light-blue);
    color: var(--white);
    transform: translateX(5px);
}

.sst-secondary-theme .sst-suggestions-list li:hover {
    background: var(--secondary-dark-blue);
}

/* ========== Input Section ========== */
.sst-input-section {
    background: var(--white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.sst-action-buttons {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-md);
}

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
    .sst-wrapper {
        padding: var(--spacing-sm);
    }
    
    .sst-header {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .sst-header h1 {
        font-size: 24px;
    }
    
    .sst-level-toggle {
        flex-direction: column;
    }
    
    .sst-tab {
        padding: var(--spacing-md);
    }
    
    .sst-story-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .sst-story-meta {
        flex-direction: column;
    }
    
    .sst-chapter-navigation {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .sst-nav-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .sst-header h1 {
        font-size: 20px;
    }
    
    .sst-level-label {
        font-size: var(--font-size-base);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .sst-btn {
        width: 100%;
        justify-content: center;
    }
    
    .sst-form-group label {
        font-size: var(--font-size-small);
    }
    
    .sst-input,
    .sst-select {
        font-size: var(--font-size-small);
    }
}

/* ==================== STORAGE BOX ==================== */
.sst-storage-box {
    margin-top: 40px;
    padding: 30px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    border: 2px solid #667eea;
}

.sst-storage-header {
    text-align: center;
    margin-bottom: 20px;
}

.sst-storage-header h3 {
    color: #333;
    font-size: 1.5em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.sst-storage-warning {
    background: #fff3cd;
    border: 2px solid #ffc107;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: #856404;
}

.sst-storage-warning .sst-icon {
    font-size: 1.5em;
}

.sst-storage-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 20px;
}

.sst-storage-actions .sst-btn {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
}

.sst-storage-status {
    text-align: center;
    padding: 15px;
    background: white;
    border-radius: 10px;
    font-size: 1.1em;
    color: #333;
}

.sst-storage-count {
    font-weight: bold;
    color: #667eea;
    margin-left: 10px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .sst-storage-box {
        padding: 20px;
    }
    
    .sst-storage-actions {
        flex-direction: column;
    }
    
    .sst-storage-actions .sst-btn {
        max-width: 100%;
    }
}

/* ========== Accessibility ========== */
.sst-btn:focus,
.sst-input:focus,
.sst-select:focus {
    outline: 3px solid rgba(79, 195, 247, 0.4);
    outline-offset: 2px;
}

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

/* ========== Print Styles ========== */
@media print {
    .sst-header,
    .sst-level-toggle,
    .sst-language-switcher,
    .sst-story-header button,
    .sst-input-section,
    .sst-chapter-navigation,
    .sst-chapter-actions {
        display: none !important;
    }
    
    .sst-chapter {
        page-break-inside: avoid;
        border: none;
        box-shadow: none;
    }
    
    .sst-chapter-header {
        background: transparent !important;
        color: var(--black) !important;
        border-bottom: 2px solid var(--black);
    }
    
    .sst-chapter-content {
        padding: var(--spacing-sm) 0;
    }
}

/* ========== Utility Classes ========== */
.sst-text-center {
    text-align: center;
}

.sst-mt-sm { margin-top: var(--spacing-sm); }
.sst-mt-md { margin-top: var(--spacing-md); }
.sst-mt-lg { margin-top: var(--spacing-lg); }
.sst-mb-sm { margin-bottom: var(--spacing-sm); }
.sst-mb-md { margin-bottom: var(--spacing-md); }
.sst-mb-lg { margin-bottom: var(--spacing-lg); }

.sst-hidden {
    display: none !important;
}

.sst-visible {
    display: block !important;
}