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

:root {
    /* Trendyol-inspired color scheme */
    --primary-color: #F27A1A;
    --primary-dark: #E06B10;
    --primary-light: #FF8C42;
    --secondary-color: #1D1D1D;
    --success-color: #4CAF50;
    --error-color: #F44336;
    --warning-color: #FF9800;
    --text-primary: #1D1D1D;
    --text-secondary: #666666;
    --text-light: #999999;
    --bg-primary: #F5F5F5;
    --bg-secondary: #FFFFFF;
    --border-color: #E0E0E0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.16);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.2s ease;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* App Container */
.app-container {
    max-width: 600px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

/* Header */
.app-header {
    background: var(--primary-color);
    color: white;
    padding: 16px 20px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-header h1 {
    font-size: 1.25rem;
    font-weight: 700;
}

/* Step Indicator */
.step-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.step {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    transition: var(--transition);
}

.step.active {
    background: white;
    color: var(--primary-color);
}

.step.completed {
    background: var(--success-color);
    color: white;
}

.step-line {
    width: 20px;
    height: 2px;
    background: rgba(255, 255, 255, 0.3);
}

/* Main Content */
.app-main {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

/* Step Content */
.step-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.step-content.active {
    display: block;
}

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

/* Step Header with Back Button */
.step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.step-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.back-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-secondary);
}

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

/* Typography */
h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.step-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.875rem;
}

/* Lottery Cards */
.lottery-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lottery-card {
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 16px;
}

.lottery-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.lottery-card:active {
    transform: scale(0.98);
}

.lottery-card.selected {
    border-color: var(--primary-color);
    background: rgba(242, 122, 26, 0.08);
}

.lottery-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.lottery-info {
    flex: 1;
    min-width: 0;
}

.lottery-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.lottery-tagline {
    font-size: 0.75rem;
    color: var(--primary-color);
    font-weight: 500;
    font-style: italic;
    margin-bottom: 4px;
}

.lottery-desc {
    font-size: 0.813rem;
    color: var(--text-secondary);
    margin: 0 0 8px 0;
}

.lottery-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.lottery-meta span {
    font-size: 0.7rem;
    color: var(--text-light);
}

.lottery-meta strong {
    color: var(--text-secondary);
    font-weight: 600;
}

.next-draw, .prize-pool {
    display: block;
}

.lottery-price {
    margin-left: auto;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 0.875rem;
    flex-shrink: 0;
    align-self: flex-start;
}

.loading-placeholder {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Picker Section */
.picker-section {
    margin-bottom: 20px;
}

.picker-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

/* Number Grid */
.number-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    margin-bottom: 16px;
}

.number-grid.joker-grid {
    grid-template-columns: repeat(5, 1fr);
}

.number-grid.noroc-grid {
    grid-template-columns: repeat(8, 1fr);
}

.number-grid.zone-grid {
    grid-template-columns: repeat(7, 1fr);
}

.number-btn {
    aspect-ratio: 1;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    -webkit-tap-highlight-color: transparent;
}

.number-btn:hover {
    border-color: var(--primary-color);
    background: rgba(242, 122, 26, 0.1);
}

.number-btn.selected {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.number-btn:active {
    transform: scale(0.95);
}

/* Variants Container */
.variants-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
}

.variant-section {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 12px;
}

.variant-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.variant-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.variant-toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
}

.variant-label {
    font-weight: 600;
    font-size: 0.875rem;
}

.variant-count {
    font-size: 0.75rem;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
}

/* Noroc Section */
.noroc-section {
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 16px;
}

.noroc-header {
    margin-bottom: 12px;
}

.noroc-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
}

.noroc-toggle input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--warning-color);
}

/* Multiplier Section */
.multiplier-section {
    margin-top: 16px;
}

.multiplier-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.multiplier-option {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.875rem;
}

.multiplier-option:has(input:checked) {
    border-color: var(--primary-color);
    background: rgba(242, 122, 26, 0.1);
}

.multiplier-option input[type="radio"] {
    display: none;
}

/* Selection Summary */
.selection-summary {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 16px;
}

.summary-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}

.summary-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.summary-numbers {
    font-size: 0.875rem;
    font-weight: 500;
    word-break: break-word;
}

.summary-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.summary-price span {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.summary-price strong {
    font-size: 1.125rem;
    color: var(--primary-color);
}

/* Buttons */
.primary-btn {
    width: 100%;
    padding: 14px 24px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    -webkit-tap-highlight-color: transparent;
}

.primary-btn:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

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

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

/* Order Summary */
.order-summary {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 20px;
}

.order-summary h3 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.order-details {
    margin-bottom: 12px;
}

.order-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.order-item:last-child {
    border-bottom: none;
}

.order-item-label {
    color: var(--text-secondary);
}

.order-item-value {
    font-weight: 500;
    text-align: right;
    max-width: 60%;
    word-break: break-word;
}

.order-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 2px solid var(--border-color);
    font-size: 1rem;
}

.order-total strong {
    font-size: 1.25rem;
    color: var(--primary-color);
}

/* Checkout Form */
.checkout-form {
    margin-bottom: 20px;
}

.checkout-form h3 {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.813rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(242, 122, 26, 0.15);
}

.form-group input::placeholder {
    color: var(--text-light);
}

.input-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Terms Section */
.terms-section {
    margin-bottom: 16px;
}

.terms-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    cursor: pointer;
    font-size: 0.813rem;
}

.terms-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--primary-color);
    flex-shrink: 0;
}

.terms-checkbox a {
    color: var(--primary-color);
    text-decoration: none;
}

.terms-checkbox a:hover {
    text-decoration: underline;
}

/* Pay Button */
.pay-btn {
    margin-bottom: 12px;
}

/* Secure Notice */
.secure-notice {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.secure-notice svg {
    color: var(--success-color);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 12px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: 24px;
    max-width: 400px;
    width: 100%;
    text-align: center;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-content h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.875rem;
}

.modal-content.success .success-icon {
    margin-bottom: 16px;
    color: var(--success-color);
}

.modal-content .ticket-id {
    background: var(--bg-primary);
    padding: 12px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.875rem;
}

.modal-content .ticket-id strong {
    color: var(--primary-color);
    font-family: monospace;
}

/* Terms Modal */
.modal-content.terms {
    text-align: left;
    max-height: 80vh;
    overflow-y: auto;
}

.terms-content {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.terms-content ul {
    margin-top: 12px;
    padding-left: 20px;
}

.terms-content li {
    margin-bottom: 8px;
}

/* Responsive Design */
@media (min-width: 768px) {
    .app-container {
        margin-top: 20px;
        margin-bottom: 20px;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
        min-height: calc(100vh - 40px);
    }

    .app-header {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }

    .lottery-cards {
        flex-direction: column;
    }

    .lottery-card {
        flex-direction: row;
    }

    .number-grid {
        grid-template-columns: repeat(10, 1fr);
    }

    .number-grid.zone-grid {
        grid-template-columns: repeat(10, 1fr);
    }

    .number-grid.joker-grid {
        grid-template-columns: repeat(10, 1fr);
    }
}

@media (max-width: 374px) {
    .number-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    .number-grid.zone-grid {
        grid-template-columns: repeat(5, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .multiplier-options {
        flex-direction: column;
    }
}

/* Safe area for notched devices */
@supports (padding: max(0px)) {
    .app-header {
        padding-top: max(16px, env(safe-area-inset-top));
    }

    .app-main {
        padding-bottom: max(20px, env(safe-area-inset-bottom));
    }
}