/* Pangram Generator v5.0 - Optimized CSS */
.pangram-generator-wrapper {
    max-width: 1024px;
    margin: 0 auto;
    padding: 24px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #1f2937;
}

/* Header */
.pangram-header {
    text-align: center;
    margin-bottom: 32px;
}

.pangram-main-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 16px 0;
    color: #111827;
}

.pangram-header p {
    font-size: 1.125rem;
    color: #6b7280;
    margin: 0;
}

/* Cards */
.pangram-card {
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    margin-bottom: 32px;
    overflow: hidden;
}

.pangram-card-content {
    padding: 24px;
}

.pangram-section-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 16px 0;
    color: #111827;
}

/* Buttons */
.pangram-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    font-size: 14px;
    gap: 8px;
}

.pangram-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.pangram-btn-blue {
    background-color: #3b82f6;
    color: white;
    border: 2px solid #3b82f6;
}

.pangram-btn-blue:hover:not(:disabled) {
    background-color: #2563eb;
    border-color: #2563eb;
}

.pangram-btn-primary {
    background-color: #3b82f6;
    color: white;
    border: 2px solid #3b82f6;
}

.pangram-btn-primary:hover:not(:disabled) {
    background-color: #2563eb;
    border-color: #2563eb;
}

.pangram-btn-outline {
    background-color: transparent;
    color: #374151;
    border: 2px solid #d1d5db;
}

.pangram-btn-outline:hover:not(:disabled) {
    background-color: #f9fafb;
    border-color: #9ca3af;
}

.pangram-btn-lg {
    padding: 12px 32px;
    font-size: 1.125rem;
    font-weight: 600;
}

/* Icons */
.pangram-icon {
    width: 16px;
    height: 16px;
}

/* Advanced Options */
.pangram-toggle-container {
    text-align: center;
    margin-bottom: 24px;
}

.pangram-advanced-options {
    background-color: #f9fafb;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
}

.pangram-option-group {
    margin-bottom: 16px;
}

.pangram-option-group:last-child {
    margin-bottom: 0;
}

.pangram-label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: #374151;
}

.pangram-select,
.pangram-input {
    width: 100%;
    padding: 8px 12px;
    border: 2px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.pangram-select:focus,
.pangram-input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.pangram-textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    border: 2px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.2s ease;
}

.pangram-textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.pangram-help-text {
    font-size: 12px;
    color: #6b7280;
    margin-top: 4px;
    margin-bottom: 0;
}

/* Generate Section */
.pangram-generate-container {
    text-align: center;
    margin-bottom: 32px;
}

.pangram-generate-container .pangram-help-text {
    margin-top: 8px;
}

/* Results */
.pangram-result-section {
    margin-top: 32px;
}

.pangram-result-content {
    background-color: #f9fafb;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
}

.pangram-text {
    font-size: 1.125rem;
    font-weight: 500;
    margin: 0 0 16px 0;
    color: #111827;
}

.pangram-action-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

/* Loading */
.pangram-loading {
    text-align: center;
    padding: 32px;
}

.pangram-spinner {
    width: 32px;
    height: 32px;
    border: 4px solid #e5e7eb;
    border-top: 4px solid #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* Statistics */
.pangram-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    text-align: center;
}

@media (min-width: 768px) {
    .pangram-stats {
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
}

.pangram-stat-number {
    font-size: 1.25rem;
    font-weight: 700;
    color: #111827;
}

@media (min-width: 768px) {
    .pangram-stat-number {
        font-size: 2rem;
    }
}

.pangram-stat-label {
    font-size: 11px;
    color: #6b7280;
    margin-top: 4px;
}

@media (min-width: 768px) {
    .pangram-stat-label {
        font-size: 12px;
    }
}

/* Letter Coverage */
.pangram-letter-coverage {
    margin-top: 24px;
}

.pangram-coverage-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: #111827;
}

.pangram-letter-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .pangram-letter-grid {
        grid-template-columns: repeat(13, 1fr);
        gap: 8px;
        margin-bottom: 24px;
    }
}

.pangram-letter-tile {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    border: 2px solid;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 12px;
}

@media (min-width: 768px) {
    .pangram-letter-tile {
        width: 48px;
        height: 48px;
        border-radius: 8px;
        font-size: 14px;
    }
}

.pangram-letter-tile.found {
    background-color: #dcfce7;
    border-color: #22c55e;
    color: #15803d;
}

.pangram-letter-tile.missing {
    background-color: #f3f4f6;
    border-color: #d1d5db;
    color: #9ca3af;
}

.pangram-letter-tile .letter {
    font-size: 11px;
}

@media (min-width: 768px) {
    .pangram-letter-tile .letter {
        font-size: 14px;
    }
}

.pangram-letter-tile .count {
    font-size: 9px;
    margin-top: 1px;
}

@media (min-width: 768px) {
    .pangram-letter-tile .count {
        font-size: 10px;
        margin-top: 2px;
    }
}

/* Summary */
.pangram-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.pangram-summary-title {
    font-weight: 500;
    margin: 0 0 8px 0;
    font-size: 14px;
}

.pangram-summary-found .pangram-summary-title {
    color: #15803d;
}

.pangram-summary-missing .pangram-summary-title {
    color: #dc2626;
}

.pangram-summary-text {
    font-size: 12px;
    line-height: 1.4;
}

.pangram-summary-found .pangram-summary-text {
    color: #166534;
}

.pangram-summary-missing .pangram-summary-text {
    color: #b91c1c;
}

/* Success Message */
.pangram-success {
    text-align: center;
    padding: 12px;
    background-color: #dcfce7;
    border: 2px solid #22c55e;
    border-radius: 8px;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .pangram-success {
        padding: 16px;
    }
}

.pangram-success-text {
    font-size: 1rem;
    color: #15803d;
    margin: 0;
}

@media (min-width: 768px) {
    .pangram-success-text {
        font-size: 1.25rem;
    }
}

/* Validator */
.pangram-validator-card .pangram-description {
    color: #6b7280;
    margin-bottom: 16px;
}

.pangram-validator-buttons {
    display: flex;
    gap: 8px;
    margin: 16px 0;
    flex-wrap: wrap;
}

.pangram-validator-results {
    margin-top: 24px;
}

.pangram-validation-status {
    padding: 16px;
    border-radius: 8px;
    border: 2px solid;
    margin-top: 16px;
}

.pangram-validation-status.success {
    background-color: #dcfce7;
    border-color: #22c55e;
    color: #15803d;
}

.pangram-validation-status.error {
    background-color: #fef2f2;
    border-color: #ef4444;
    color: #dc2626;
}

.pangram-validation-status .status-icon {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
}

/* About Section */
.pangram-about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.pangram-subsection-title {
    font-weight: 600;
    margin: 0 0 12px 0;
    color: #111827;
}

.pangram-about-section p {
    color: #6b7280;
    margin: 0 0 16px 0;
}

.pangram-feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pangram-feature-list li {
    padding: 8px 12px;
    background-color: #f9fafb;
    border-radius: 6px;
    margin-bottom: 8px;
    color: #374151;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .pangram-generator-wrapper {
        padding: 12px;
    }
    
    .pangram-main-title {
        font-size: 1.75rem;
    }
    
    .pangram-card-content {
        padding: 16px;
    }
    
    .pangram-about-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .pangram-summary {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .pangram-action-buttons {
        justify-content: center;
        gap: 8px;
    }
    
    .pangram-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .pangram-letter-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: 4px;
    }
    
    .pangram-letter-tile {
        width: 36px;
        height: 36px;
        font-size: 11px;
    }
    
    .pangram-stats {
        grid-template-columns: 1fr;
    }
}