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

:root {
    --color-bg-primary: #000000;
    --color-bg-secondary: #0a0f1a;
    --color-bg-tertiary: #0f1829;
    --color-bg-elevated: #152238;
    --color-bg-overlay: #1a2d47;
    
    --color-teal: #2196f3;
    --color-teal-dark: #1976d2;
    --color-teal-darker: #1565c0;
    --color-blue: #42a5f5;
    --color-blue-dark: #1e88e5;
    
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #b3b3b3;
    --color-text-tertiary: #808080;
    
    --color-success: #3ddc97;
    --color-warning: #ffa726;
    --color-error: #ef5350;
    
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-subtle: rgba(255, 255, 255, 0.05);
    
    --shadow-sm: 0 1px 3px 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-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.page {
    display: none;
    min-height: 100vh;
}

.page.active {
    display: block;
}

svg {
    width: 1em;
    height: 1em;
    display: inline-block;
    vertical-align: middle;
}

.navbar {
    background: var(--color-bg-secondary);
    padding: var(--spacing-md) var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-teal), var(--color-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.coin-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.earn-coin-btn {
    background: linear-gradient(135deg, var(--color-teal), var(--color-teal-dark));
    color: var(--color-bg-primary);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.earn-coin-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(61, 220, 151, 0.4);
    background: linear-gradient(135deg, var(--color-teal-dark), var(--color-teal-darker));
}

.earn-coin-btn:active:not(:disabled) {
    transform: translateY(0);
}

.earn-coin-btn:disabled {
    background: var(--color-bg-elevated);
    color: var(--color-text-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

.coin-counter {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    font-weight: 700;
    font-size: 1rem;
}

.coin-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-teal);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.tool-card {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--color-teal), var(--color-blue));
    transform: scaleX(0);
    transition: transform var(--transition-base);
    transform-origin: left;
}

.tool-card:hover::before {
    transform: scaleX(1);
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-teal);
    background: var(--color-bg-tertiary);
}

.tool-card:active {
    transform: translateY(-2px);
}

.tool-card.tutorial-card {
    background: linear-gradient(135deg, rgba(61, 220, 151, 0.05), rgba(93, 173, 226, 0.05));
    border-color: var(--color-border);
}

.tool-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.tool-icon {
    width: 2rem;
    height: 2rem;
    color: var(--color-teal);
    flex-shrink: 0;
}

.tool-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.tool-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
    flex-grow: 1;
}

.tool-footer {
    margin-top: auto;
}

.unlock-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(239, 83, 80, 0.1);
    border: 1px solid rgba(239, 83, 80, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-error);
}

.unlock-badge.unlocked {
    background: rgba(61, 220, 151, 0.1);
    border-color: rgba(61, 220, 151, 0.3);
    color: var(--color-success);
}

.lock-icon {
    width: 0.875rem;
    height: 0.875rem;
}

.back-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-base);
}

.back-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-teal);
    color: var(--color-teal);
}

.tool-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

.tool-help {
    background: linear-gradient(135deg, rgba(61, 220, 151, 0.05), rgba(93, 173, 226, 0.05));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.tool-help h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
    color: var(--color-teal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.help-icon {
    width: 1.25rem;
    height: 1.25rem;
}

.tool-help p {
    color: var(--color-text-secondary);
    margin: var(--spacing-sm) 0;
}

.generation-interface {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
}

.generation-interface textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-lg);
    resize: vertical;
    font-family: inherit;
    transition: all var(--transition-base);
    min-height: 120px;
}

.generation-interface textarea:focus {
    outline: none;
    border-color: var(--color-teal);
    box-shadow: 0 0 0 3px rgba(61, 220, 151, 0.1);
}

.generation-interface textarea::placeholder {
    color: var(--color-text-tertiary);
}

.generate-btn {
    background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    white-space: nowrap;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(93, 173, 226, 0.4);
}

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

.btn-icon {
    width: 1rem;
    height: 1rem;
}

.output-area {
    margin-top: var(--spacing-xl);
    min-height: 300px;
    background: var(--color-bg-tertiary);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.placeholder {
    color: var(--color-text-tertiary);
    font-size: 1rem;
}

.upload-area {
    margin-bottom: var(--spacing-lg);
}

.upload-area label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
}

.file-input {
    display: none;
}

.file-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
    color: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-base);
    margin-top: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
}

.file-upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(93, 173, 226, 0.4);
}

.file-name {
    display: block;
    margin-top: var(--spacing-sm);
    color: var(--color-success);
    font-size: 0.875rem;
    font-weight: 600;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
    animation: fadeIn var(--transition-base) ease;
}

.modal-content {
    background: var(--color-bg-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    animation: scaleIn var(--transition-base) ease;
    border: 1px solid var(--color-border);
    position: relative;
}

.modal-content h2 {
    margin-bottom: var(--spacing-md);
    font-size: 1.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-icon {
    width: 1.75rem;
    height: 1.75rem;
    color: var(--color-teal);
}

.modal-subtitle {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
}

.close-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--color-text-tertiary);
    font-size: 2rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    line-height: 1;
}

.close-btn:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.tutorial-content {
    max-width: 700px;
    max-height: 85vh;
    overflow-y: auto;
}

.tutorial-content::-webkit-scrollbar {
    width: 8px;
}

.tutorial-content::-webkit-scrollbar-track {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
}

.tutorial-content::-webkit-scrollbar-thumb {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-sm);
}

.tutorial-content::-webkit-scrollbar-thumb:hover {
    background: var(--color-bg-overlay);
}

.tutorial-section {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.tutorial-section h3 {
    margin-bottom: var(--spacing-md);
    color: var(--color-teal);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.125rem;
}

.tutorial-icon {
    width: 1.25rem;
    height: 1.25rem;
}

.tutorial-section p {
    color: var(--color-text-secondary);
    margin: var(--spacing-sm) 0;
    line-height: 1.6;
}

.tutorial-section strong {
    color: var(--color-text-primary);
}

.earn-coins-content {
    text-align: center;
}

.earn-coins-info {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--color-border);
}

.coin-counter-large {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-teal);
    margin-bottom: var(--spacing-lg);
}

.coin-icon-large {
    width: 3rem;
    height: 3rem;
}

.earn-instruction {
    color: var(--color-text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.earn-note {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.earn-modal-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-teal), var(--color-teal-dark));
    color: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.earn-modal-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(61, 220, 151, 0.4);
}

.earn-modal-btn:disabled {
    background: var(--color-bg-elevated);
    color: var(--color-text-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

.earn-modal-status {
    margin-top: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

.important-note {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-md);
    background: rgba(255, 152, 0, 0.1);
    border-left: 3px solid var(--color-warning);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    text-align: left;
}

.important-note .note-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-warning);
    flex-shrink: 0;
    margin-top: 2px;
}

.important-note p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    margin: 0;
}

.important-note strong {
    color: var(--color-warning);
}

.unlock-confirm-content {
    text-align: center;
}

.unlock-info {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    margin: var(--spacing-xl) 0;
    border: 1px solid var(--color-border);
}

.unlock-tool-name {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-teal), var(--color-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-lg);
}

.unlock-cost-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.unlock-cost-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-teal);
}

.unlock-cost-label {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    font-weight: 600;
}

.unlock-note {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.ad-warning {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    text-align: left;
    padding: var(--spacing-md);
    background: rgba(255, 152, 0, 0.1);
    border-left: 3px solid var(--color-warning);
    border-radius: var(--radius-sm);
}

.ad-warning strong {
    color: var(--color-warning);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.cancel-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.cancel-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-text-secondary);
    color: var(--color-text-primary);
}

.confirm-unlock-btn {
    flex: 1;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.confirm-unlock-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.5);
}

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

.loading-container {
    text-align: center;
    padding: var(--spacing-xl);
}

.loading-container p {
    color: var(--color-text-secondary);
    margin-top: var(--spacing-lg);
    font-size: 1rem;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-bg-elevated);
    border-top: 4px solid var(--color-teal);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 1s linear infinite;
}

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

.queue-container {
    text-align: center;
    padding: var(--spacing-xl);
}

.queue-info {
    background: linear-gradient(135deg, rgba(61, 220, 151, 0.05), rgba(93, 173, 226, 0.05));
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.queue-info h3 {
    color: var(--color-teal);
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.queue-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.queue-position {
    margin-bottom: var(--spacing-lg);
}

.queue-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-teal), var(--color-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.queue-position p {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.queue-time {
    margin-top: var(--spacing-md);
}

.time-estimate {
    color: var(--color-warning);
    font-weight: 600;
    font-size: 1.125rem;
}

.skip-btn {
    background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    min-width: 200px;
    box-shadow: var(--shadow-sm);
}

.skip-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(93, 173, 226, 0.4);
}

.skip-btn:active:not(:disabled) {
    transform: translateY(0);
}

.skip-btn:disabled {
    background: var(--color-bg-elevated);
    color: var(--color-text-tertiary);
    cursor: not-allowed;
    opacity: 0.6;
}

.processing-container {
    text-align: center;
    padding: var(--spacing-xl);
}

.processing-text {
    color: var(--color-text-primary);
    margin-top: var(--spacing-lg);
    font-size: 1.125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.step-icon {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--color-teal);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-full);
    margin-top: var(--spacing-xl);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-teal), var(--color-blue));
    width: 0%;
    transition: width 0.5s ease;
    border-radius: var(--radius-full);
}

.error-container {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.error-icon {
    width: 4rem;
    height: 4rem;
    color: var(--color-warning);
    margin: 0 auto var(--spacing-lg);
}

.error-container h3 {
    color: var(--color-warning);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.error-message {
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

.error-note {
    color: var(--color-success);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
}

.retry-btn {
    background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
    color: white;
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.retry-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(93, 173, 226, 0.4);
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.homepage-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    background: radial-gradient(ellipse at center, rgba(33, 150, 243, 0.15) 0%, rgba(0, 0, 0, 0) 70%),
                linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
}

.homepage-content {
    max-width: 700px;
    text-align: center;
    animation: fadeIn 0.8s ease;
}

.homepage-title {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-teal), var(--color-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.homepage-description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.homepage-features {
    font-size: 1.125rem;
    color: var(--color-text-primary);
    line-height: 2;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.continue-btn {
    background: linear-gradient(135deg, var(--color-blue), var(--color-blue-dark));
    color: white;
    border: none;
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 700;
    font-size: 1.25rem;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
}

.continue-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(33, 150, 243, 0.5);
    background: linear-gradient(135deg, var(--color-teal), var(--color-blue-dark));
}

.continue-btn:active {
    transform: translateY(-2px);
}

.btn-icon-large {
    width: 1.5rem;
    height: 1.5rem;
}

@media (max-width: 768px) {
    .homepage-title {
        font-size: 2.5rem;
    }
    
    .homepage-description {
        font-size: 1.125rem;
    }
    
    .continue-btn {
        font-size: 1.125rem;
        padding: var(--spacing-md) var(--spacing-xl);
    }
}

@media (max-width: 1024px) {
    .container {
        padding: var(--spacing-xl) var(--spacing-lg);
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: var(--spacing-md);
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .nav-brand {
        font-size: 1.125rem;
    }
    
    .coin-display {
        order: 3;
        width: 100%;
        justify-content: space-between;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .modal-content {
        padding: var(--spacing-xl);
        width: 95%;
    }
    
    .tool-container {
        padding: var(--spacing-md);
    }
    
    .coin-counter-large {
        font-size: 2.5rem;
    }
    
    .coin-icon-large {
        width: 2.5rem;
        height: 2.5rem;
    }
}

@media (max-width: 480px) {
    .navbar {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .container {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .tool-card {
        padding: var(--spacing-lg);
    }
    
    .tool-header h3 {
        font-size: 1.125rem;
    }
    
    .modal-content {
        padding: var(--spacing-lg);
    }
    
    .modal-content h2 {
        font-size: 1.5rem;
    }
    
    .earn-coin-btn,
    .generate-btn,
    .skip-btn,
    .retry-btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }
    
    .coin-counter-large {
        font-size: 2rem;
    }
    
    .coin-icon-large {
        width: 2rem;
        height: 2rem;
    }
}

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