/* TOTP Generator - Light Theme */

/* Hidden elements */
.hidden {
    display: none !important;
}

/* CSS Variables */
:root {
    --bg-color: var(--bg-primary);
    --text-color: var(--text-primary);
    --primary-color: #3b82f6;
    --secondary-color: var(--text-muted);
    --success-color: var(--success-color);
    --error-color: var(--danger-color);
    --warning-color: var(--warning-color);
    --border-color: var(--border-color);
    --surface-color: var(--bg-secondary);
    --surface-hover: var(--bg-secondary);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}
/* Dark mode overrides */
[data-theme="dark"] {
    --tool-bg: #0f172a;
    --tool-border: #334155;
    --tool-border-hover: #475569;
    --tool-text: #f8fafc;
    --tool-text-secondary: #94a3b8;
    --tool-input-bg: #1e293b;
    --tool-input-border: #334155;
    --tool-button-bg: #1e293b;
    --tool-button-hover: #334155;
    --tool-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
    --tool-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --surface-color: #1e293b;
    --surface-hover: #334155;
    --background-color: #0f172a;
    --text-color: #f8fafc;
    --status-info: rgba(96, 165, 250, 0.2);
    --status-success: rgba(34, 197, 94, 0.2);
    --status-error: rgba(248, 113, 113, 0.2);
    --bg-color: #0f172a;
}

/* Dark mode element overrides */
[data-theme="dark"] .tool-card {
    background: var(--bg-card, #1e293b);
    border-color: var(--border-color, #334155);
}

[data-theme="dark"] .tool-hero {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background: var(--input-bg, #1e293b);
    color: var(--text-primary, #f8fafc);
    border-color: var(--border-color, #334155);
}

[data-theme="dark"] input::placeholder,
[data-theme="dark"] textarea::placeholder {
    color: var(--text-muted, #64748b);
}

[data-theme="dark"] .tab-btn.active {
    color: white;
}

[data-theme="dark"] label {
    color: var(--text-primary, #f8fafc);
}

[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3,
[data-theme="dark"] h4, [data-theme="dark"] h5, [data-theme="dark"] h6 {
    color: var(--text-primary, #f8fafc);
}

[data-theme="dark"] p {
    color: var(--text-secondary, #cbd5e1);
}

/* Dark mode border overrides */
[data-theme="dark"] .error-message {
    background: rgba(248, 113, 113, 0.2);
    border-color: rgba(248, 113, 113, 0.4);
}


/* Main container */
.totp-generator {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    background: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}

.header h1 {
    color: var(--text-primary);
    font-size: 2.5rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin: 0;
}

.theme-toggle {
    position: absolute;
    top: 0;
    right: 0;
}

.theme-btn {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 8px 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    color: var(--text-color);
}

.theme-btn:hover {
    background: var(--surface-hover);
    transform: translateY(-1px);
}

/* Secret Section */
.secret-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.secret-section h2 {
    color: var(--text-secondary);
    font-size: 1.5rem;
    margin-bottom: 24px;
    font-weight: 600;
}

/* Method Tabs */
.method-tabs {
    display: flex;
    background: var(--bg-color);
    border-radius: 8px;
    padding: 4px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    gap: 4px;
}

.method-tab {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--secondary-color);
    font-weight: 500;
    font-size: 0.95rem;
}

.method-tab:hover {
    background: var(--surface-hover);
    color: var(--text-color);
}

.method-tab.active {
    background: var(--primary-color);
    color: var(--bg-primary);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* Input Methods */
.input-method {
    animation: fadeIn 0.3s ease;
}

.input-method:not(.active) {
    display: none;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Form Elements */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    background: var(--bg-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Secret Input Container */
.secret-input-container {
    display: flex;
    gap: 8px;
    align-items: stretch;
}

.secret-input-container input {
    flex: 1;
    font-family: 'Courier New', monospace;
}

.input-help {
    margin-top: 6px;
    font-size: 0.85rem;
    color: var(--secondary-color);
}

/* Generated Secret Display */
.generated-secret {
    background: var(--color-blue-soft);
    border: 1px solid #bae6fd;
    border-radius: 8px;
    padding: 16px;
    margin: 16px 0;
}

.secret-display {
    display: flex;
    align-items: center;
    gap: 12px;
}

.secret-label {
    font-weight: 500;
    color: var(--primary-color);
}

.secret-value {
    font-family: 'Courier New', monospace;
    background: var(--bg-primary);
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    flex: 1;
    word-break: break-all;
    color: var(--text-primary);
}

/* QR Import Area */
.qr-import-area {
    margin-bottom: 20px;
}

.file-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-color);
    margin-bottom: 16px;
}

.file-drop-zone:hover,
.file-drop-zone.drag-over {
    border-color: var(--primary-color);
    background: var(--color-blue-soft);
}

.drop-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.drop-icon {
    font-size: 2rem;
}

.drop-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.drop-text strong {
    color: var(--text-color);
    font-size: 1.1rem;
}

.drop-text span {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.qr-camera-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

#camera-video {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Imported Info */
.imported-info {
    background: var(--color-green-soft);
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    padding: 16px;
    margin-top: 16px;
}

.info-row {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

.info-row:last-child {
    margin-bottom: 0;
}

.info-label {
    font-weight: 500;
    color: var(--text-success);
    min-width: 80px;
}

.info-value {
    color: var(--text-success);
    font-family: 'Courier New', monospace;
}

/* TOTP Settings */
.totp-settings {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin: 24px 0;
}

.totp-settings h3 {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.settings-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* Action Buttons */
.action-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 24px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--secondary-color);
    color: var(--bg-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--text-secondary);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-color);
    color: var(--bg-primary);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.btn-xs {
    padding: 4px 8px;
    font-size: 0.8rem;
}

/* Status Messages */
.setup-status {
    margin-bottom: 16px;
    min-height: 24px;
}

.status-message {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
}

.status-message.success {
    background: var(--color-green-soft);
    color: var(--text-success);
    border: 1px solid #bbf7d0;
}

.status-message.error {
    background: var(--color-red-soft);
    color: var(--danger-color);
    border: 1px solid #fecaca;
}

/* TOTP Display Section */
.totp-display-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.totp-header {
    text-align: center;
    margin-bottom: 24px;
}

.totp-header h2 {
    color: var(--text-secondary);
    font-size: 1.5rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.account-info {
    color: var(--secondary-color);
    font-size: 1rem;
}

.totp-main-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    margin-bottom: 32px;
}

.totp-code-display {
    text-align: center;
}

.totp-code {
    font-family: 'Courier New', monospace;
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    background: var(--bg-color);
    padding: 20px 32px;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    margin-bottom: 16px;
    letter-spacing: 0.1em;
    box-shadow: var(--shadow);
}

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

.validity-text {
    color: var(--secondary-color);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.validity-progress {
    width: 200px;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 0 auto;
}

.progress-bar {
    height: 100%;
    background: var(--success-color);
    transition: width 1s linear;
    border-radius: 4px;
}

.progress-bar.warning {
    background: var(--warning-color);
}

.progress-bar.urgent {
    background: var(--error-color);
}

.totp-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* QR Section */
.qr-section {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 24px;
    margin-top: 24px;
}

.qr-section h3 {
    color: var(--text-secondary);
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
}

.qr-display {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 24px;
    align-items: start;
}

.qr-code-container {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--bg-primary);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

#qr-canvas {
    display: block;
}

.qr-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.qr-description p {
    color: var(--text-color);
    margin-bottom: 12px;
}

.qr-description ul {
    color: var(--secondary-color);
    font-size: 0.9rem;
    padding-left: 20px;
}

.qr-description li {
    margin-bottom: 4px;
}

.qr-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* Manual Setup */
.manual-setup {
    margin-top: 24px;
    background: var(--surface-color);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.manual-setup h4 {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 16px;
    font-weight: 600;
}

.setup-details {
    display: grid;
    gap: 12px;
}

.detail-row {
    display: grid;
    grid-template-columns: 120px 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 500;
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.detail-value {
    font-family: 'Courier New', monospace;
    color: var(--text-color);
    font-size: 0.9rem;
    word-break: break-all;
}

/* History Section */
.history-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.history-header h2 {
    color: var(--text-secondary);
    font-size: 1.5rem;
    margin: 0;
    font-weight: 600;
}

.history-list {
    display: grid;
    gap: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.history-placeholder {
    text-align: center;
    padding: 40px 20px;
    color: var(--secondary-color);
}

.history-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 12px;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.history-item:hover {
    background: var(--surface-hover);
}

.history-item.current {
    border-color: var(--primary-color);
    background: var(--color-blue-soft);
}

.history-code {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: 0.05em;
}

.history-time {
    color: var(--secondary-color);
    font-size: 0.85rem;
}

/* Validation Section */
.validation-section {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
}

.validation-section h2 {
    color: var(--text-secondary);
    font-size: 1.5rem;
    margin-bottom: 24px;
    font-weight: 600;
}

.validation-input {
    margin-bottom: 20px;
}

.validate-input-container {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.validate-input-container input {
    flex: 1;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    text-align: center;
    letter-spacing: 0.1em;
}

.validation-result {
    margin-bottom: 20px;
    min-height: 24px;
}

.validation-message {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
}

.validation-message.success {
    background: var(--color-green-soft);
    color: var(--text-success);
    border: 1px solid #bbf7d0;
}

.validation-message.error {
    background: var(--color-red-soft);
    color: var(--danger-color);
    border: 1px solid #fecaca;
}

.validation-info {
    background: var(--bg-color);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.validation-info h4 {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 12px;
    font-weight: 600;
}

.validation-info ul {
    color: var(--secondary-color);
    font-size: 0.9rem;
    padding-left: 20px;
}

.validation-info li {
    margin-bottom: 6px;
    line-height: 1.4;
}

/* Statistics Panel */
.statistics-panel {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
}

.statistics-panel h3 {
    color: var(--text-secondary);
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    max-width: 300px;
    box-shadow: var(--shadow);
}

.toast.show {
    transform: translateX(0);
}

.toast.toast-success {
    background: var(--success-color);
}

.toast.toast-error {
    background: var(--error-color);
}

.toast.toast-info {
    background: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .totp-generator {
        padding: 16px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .theme-toggle {
        position: static;
        margin-top: 16px;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .settings-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .action-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .action-buttons .btn {
        justify-content: center;
    }
    
    .totp-code {
        font-size: 2.5rem;
        padding: 16px 24px;
    }
    
    .totp-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .qr-display {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .qr-actions {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .history-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .validate-input-container {
        flex-direction: column;
    }
    
    .detail-row {
        grid-template-columns: 1fr;
        gap: 4px;
        text-align: left;
    }
    
    .secret-input-container {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .totp-code {
        font-size: 2rem;
    }
    
    .method-tabs {
        flex-direction: column;
    }
    
    .history-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 8px;
    }
}

/* Universal Elements Styles */

/* Tool Info */
.tool-info {
    background: var(--bg-primary);
    padding: 4rem 0;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.info-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 2rem;
    border-left: 4px solid #3b82f6;
}

.info-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.info-card p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* How to Use */
.how-to-use {
    background: var(--bg-secondary);
    padding: 4rem 0;
}

.how-to-use h2 {
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 3rem;
    font-size: 2rem;
    font-weight: 600;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1rem;
}

.step {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    position: relative;
}

.step-number {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, #3b82f6, var(--primary-hover));
    color: var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: -1rem auto 1.5rem;
}

.step-content h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Cross Promotion */
.cross-promotion {
    background: var(--bg-primary);
    padding: 4rem 0;
}

.cross-promotion h2 {
    text-align: center;
    color: var(--text-primary);
    margin-bottom: 3rem;
    font-size: 2rem;
    font-weight: 600;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1rem;
}

.tool-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: #3b82f6;
    text-decoration: none;
    color: inherit;
}

.tool-card .tool-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.tool-card .tool-name {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.tool-card .tool-desc {
    color: var(--text-muted);
    line-height: 1.6;
    margin: 0;
}

/* Responsive Design for Universal Elements */
@media (max-width: 768px) {
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .steps-grid {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

@media (max-width: 480px) {
    .info-card, .step, .tool-card {
        padding: 1.5rem;
    }
}