/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    color: #334155;
    line-height: 1.6;
    overflow-x: hidden;
}

.app-container {
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Header */
.header {
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    color: white;
    padding: max(env(safe-area-inset-top), 1rem) 1rem 1rem;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.15);
    position: relative;
    z-index: 10;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 480px;
    margin: 0 auto;
}

.header-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.customize-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.customize-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
    padding: 1rem;
    padding-bottom: 5rem; /* Space for bottom nav */
}

/* User Input Stage */
.user-input-stage {
    animation: slideInUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.input-card {
    background: white;
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.5);
    backdrop-filter: blur(20px);
    margin-bottom: 1rem;
}

.input-header {
    text-align: center;
    margin-bottom: 2rem;
}

.input-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.input-header p {
    color: #64748b;
    font-size: 0.875rem;
    line-height: 1.5;
}

.input-area {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.intent-input {
    width: 100%;
    min-height: 120px;
    padding: 1.25rem;
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: #fafafa;
    font-family: inherit;
}

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

.input-options {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.image-upload-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #475569;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-upload-btn:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
    transform: translateY(-1px);
}

.upload-hint {
    color: #94a3b8;
    font-size: 0.75rem;
}

.analyze-btn {
    width: 100%;
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    color: white;
    border: none;
    border-radius: 16px;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.25);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.analyze-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.35);
}

.analyze-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #e2e8f0;
    color: #94a3b8;
    box-shadow: none;
}

/* Recipe Selection Stage */
.recipe-selection-stage {
    animation: slideInUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.selection-header {
    text-align: center;
    margin-bottom: 2rem;
}

.selection-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #1e293b 0%, #475569 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.selection-header p {
    color: #64748b;
    font-size: 0.875rem;
    line-height: 1.5;
}

.recipe-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.recipe-card {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.06);
    border: 2px solid #e2e8f0;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
}

.recipe-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    border-color: #3b82f6;
}

.recipe-card.selected {
    border-color: #3b82f6;
    box-shadow: 0 8px 30px rgba(59, 130, 246, 0.2);
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.recipe-card-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.recipe-card-icon {
    font-size: 2rem;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: 12px;
    flex-shrink: 0;
}

.recipe-card-info {
    flex: 1;
}

.recipe-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1e293b;
}

.recipe-card-desc {
    color: #64748b;
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.recipe-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.recipe-tag {
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.recipe-card-match {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #22c55e;
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Workflow Stage */
.workflow-stage {
    animation: slideInUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.workflow-header {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
}

.back-to-selection-btn {
    background: none;
    border: none;
    color: #3b82f6;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 1rem;
}

.back-to-selection-btn:hover {
    background: #eff6ff;
    color: #1e40af;
}

.selected-recipe-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.selected-recipe-icon {
    font-size: 1.5rem;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-radius: 10px;
    flex-shrink: 0;
}

.selected-recipe-details h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #1e293b;
}

.selected-recipe-details p {
    color: #64748b;
    font-size: 0.875rem;
}

/* Progress Indicator */
.progress-indicator {
    margin-bottom: 2rem;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    width: 0%;
}

.progress-text {
    text-align: center;
    font-size: 0.875rem;
    color: #64748b;
    font-weight: 500;
}

/* Workflow Steps */
.workflow-steps {
    margin-top: 2rem;
}

.workflow-step {
    background: white;
    border-radius: 20px;
    margin-bottom: 1.5rem;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.06);
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    opacity: 0;
    transform: translateY(20px);
}

.workflow-step.active {
    opacity: 1;
    transform: translateY(0);
    box-shadow: 0 10px 40px rgba(59, 130, 246, 0.15);
    border-color: #3b82f6;
}

.workflow-step.completed {
    opacity: 1;
    transform: translateY(0);
    box-shadow: 0 6px 25px rgba(34, 197, 94, 0.08);
    border-color: #22c55e;
}

.step-header-card {
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.workflow-step.active .step-header-card {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
}

.workflow-step.completed .step-header-card {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
}

.step-icon-large {
    font-size: 1.5rem;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    flex-shrink: 0;
}

.step-title-info {
    flex: 1;
}

.step-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #1e293b;
}

.step-description {
    font-size: 0.875rem;
    color: #64748b;
    line-height: 1.4;
}

.step-status-large {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    flex-shrink: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.step-status-large.pending {
    background: #e2e8f0;
    border: 2px solid #cbd5e1;
}

.step-status-large.active {
    background: #3b82f6;
    border: 2px solid #3b82f6;
    animation: pulse 2s infinite;
}

.step-status-large.completed {
    background: #22c55e;
    border: 2px solid #22c55e;
    position: relative;
}

.step-status-large.completed::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.75rem;
    font-weight: bold;
}

.step-content-card {
    padding: 1.5rem;
}

.step-loading {
    text-align: center;
    padding: 2rem;
}

.step-loading .loading-spinner {
    width: 2rem;
    height: 2rem;
    margin: 0 auto 1rem;
}

.loading-text {
    color: #64748b;
    font-size: 0.875rem;
    margin: 0;
}

/* Final Result */
.final-result {
    margin-top: 2rem;
    animation: slideInUp 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.result-card {
    background: white;
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    text-align: center;
}

.result-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.result-header p {
    color: #64748b;
    font-size: 0.875rem;
    margin-bottom: 2rem;
}

.result-image {
    margin-bottom: 2rem;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.result-image img {
    width: 100%;
    height: auto;
    display: block;
}

.result-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.restart-btn,
.share-btn {
    padding: 0.875rem 1.5rem;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    flex: 1;
    max-width: 120px;
}

.restart-btn {
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
    color: white;
}

.restart-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(100, 116, 139, 0.3);
}

.share-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    color: white;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.3);
}

/* Start Button */
.start-btn {
    width: 100%;
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    color: white;
    border: none;
    border-radius: 16px;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.25);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.start-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 12px 35px rgba(59, 130, 246, 0.35);
}

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

.start-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Step Detail Panel */
.step-detail {
    background: white;
    transform: translateX(100%);
    display: flex;
    flex-direction: column;
}

.step-detail.active {
    transform: translateX(0);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    background: #f8fafc;
}

.back-btn {
    background: none;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-btn:hover {
    background: #e2e8f0;
    color: #334155;
}

.step-info h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.step-info p {
    font-size: 0.875rem;
    color: #64748b;
}

.step-content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

.step-actions {
    padding: 1.5rem;
    border-top: 1px solid #e2e8f0;
    background: #f8fafc;
}

/* User Input Components */
.user-input-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 1rem;
}

.input-description {
    font-size: 0.875rem;
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.choice-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.choice-btn {
    padding: 1rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.875rem;
    font-weight: 500;
    text-align: left;
}

.choice-btn:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
    transform: translateY(-1px);
}

.choice-btn.selected {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border-color: #3b82f6;
    color: #1e40af;
}

.text-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 0.875rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
    resize: vertical;
    min-height: 100px;
}

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

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    color: white;
    border: none;
    border-radius: 12px;
    padding: 0.875rem;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 1rem;
}

.submit-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.25);
}

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

/* Tool Output Display */
.tool-output {
    background: #f8fafc;
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.output-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: #475569;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.generated-image {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.generated-image:hover {
    transform: scale(1.02);
}

.image-prompt {
    font-size: 0.75rem;
    color: #64748b;
    font-style: italic;
    line-height: 1.4;
    background: white;
    padding: 0.75rem;
    border-radius: 8px;
    border-left: 3px solid #3b82f6;
}

/* Bottom Navigation */
.bottom-nav {
    background: white;
    border-top: 1px solid #e2e8f0;
    padding: max(env(safe-area-inset-bottom), 0.5rem) 0 max(env(safe-area-inset-bottom), 0.5rem);
    display: flex;
    justify-content: space-around;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.06);
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 12px;
    min-width: 0;
    flex: 1;
}

.nav-item:hover {
    background: #f8fafc;
}

.nav-item.active {
    color: #3b82f6;
}

.nav-icon {
    font-size: 1.25rem;
    transition: transform 0.2s;
}

.nav-item.active .nav-icon {
    transform: scale(1.1);
}

.nav-label {
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loading-content {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    max-width: 280px;
    margin: 0 1rem;
}

.loading-spinner {
    width: 2.5rem;
    height: 2.5rem;
    border: 3px solid #e2e8f0;
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

#loadingText {
    font-size: 0.875rem;
    color: #64748b;
    text-align: center;
    margin: 0;
}

/* Artifact Modal */
.artifact-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 20px;
    max-width: 90vw;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #64748b;
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 6px;
    transition: all 0.2s;
    line-height: 1;
}

.close-btn:hover {
    background: #f1f5f9;
    color: #334155;
}

.artifact-display {
    padding: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
}

#artifactImage {
    width: 100%;
    max-width: 400px;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

.artifact-info {
    text-align: left;
}

#artifactDesc {
    font-size: 0.875rem;
    color: #475569;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.artifact-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.meta-item {
    font-size: 0.75rem;
    color: #64748b;
}

/* Animations */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 320px) {
    .recipe-card {
        padding: 1rem;
    }
    
    .step-item {
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .step-icon {
        width: 2rem;
        height: 2rem;
        font-size: 1rem;
    }
    
    .nav-label {
        font-size: 0.625rem;
    }
}

@media (min-width: 481px) {
    .app-container {
        max-width: 480px;
        margin: 0 auto;
        box-shadow: 0 0 50px rgba(0, 0, 0, 0.1);
    }
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    /* Dark mode styles can be added here in the future */
}