/* ============================================
   Identity Verification - Premium Bank-Style UI
   ============================================ */

/* CSS Variables */
:root {
    --color-primary: #0052CC;
    --color-primary-hover: #0043A4;
    --color-primary-light: #E6F0FF;
    --color-success: #00875A;
    --color-success-light: #E3FCEF;
    --color-error: #DE350B;
    --color-error-light: #FFEBE6;
    --color-warning: #FF991F;
    --color-warning-light: #FFFAE6;
    
    --color-text-primary: #172B4D;
    --color-text-secondary: #5E6C84;
    --color-text-muted: #97A0AF;
    
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F4F5F7;
    --color-bg-tertiary: #FAFBFC;
    
    --color-border: #DFE1E6;
    --color-border-light: #EBECF0;
    
    --shadow-sm: 0 1px 2px rgba(23, 43, 77, 0.04);
    --shadow-md: 0 4px 8px rgba(23, 43, 77, 0.08), 0 2px 4px rgba(23, 43, 77, 0.04);
    --shadow-lg: 0 8px 16px rgba(23, 43, 77, 0.1), 0 4px 8px rgba(23, 43, 77, 0.06);
    --shadow-xl: 0 16px 32px rgba(23, 43, 77, 0.12), 0 8px 16px rgba(23, 43, 77, 0.08);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.35s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* Container */
.container {
    max-width: 640px;
    margin: 0 auto;
    padding: 24px 16px 48px;
    min-height: 100vh;
}

@media (min-width: 768px) {
    .container {
        padding: 40px 24px 64px;
    }
}

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

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.brand-icon {
    font-size: 28px;
    color: var(--color-primary);
}

.brand-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.trust-line {
    font-size: 14px;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.trust-line::before {
    content: '\f023';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 12px;
    color: var(--color-success);
}

/* Stepper */
.stepper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 32px;
    padding: 20px 16px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-light);
    overflow-x: auto;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.step-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--color-text-muted);
    transition: all var(--transition-normal);
}

.step-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-align: center;
    transition: color var(--transition-normal);
}

.step.active .step-icon {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(0, 82, 204, 0.3);
}

.step.active .step-label {
    color: var(--color-primary);
    font-weight: 600;
}

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

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

.step-connector {
    width: 32px;
    height: 2px;
    background: var(--color-border);
    flex-shrink: 0;
    margin: 0 8px;
    margin-bottom: 24px;
    transition: background var(--transition-normal);
}

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

@media (max-width: 480px) {
    .step-label {
        font-size: 10px;
    }
    
    .step-icon {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }
    
    .step-connector {
        width: 20px;
        margin: 0 4px;
        margin-bottom: 20px;
    }
}

/* Main Content */
.main-content {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
    padding: 32px 24px;
}

@media (max-width: 480px) {
    .main-content {
        padding: 24px 16px;
        border-radius: var(--radius-lg);
    }
}

/* 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 */
.step-header {
    margin-bottom: 28px;
}

.step-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.step-description {
    font-size: 15px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Form Elements */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.select-wrapper {
    position: relative;
}

.form-select {
    width: 100%;
    padding: 14px 44px 14px 16px;
    font-size: 15px;
    font-family: inherit;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    appearance: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-select:hover {
    border-color: var(--color-text-muted);
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.select-arrow {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    font-size: 12px;
}

/* Capture Tabs */
.capture-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    padding: 4px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    color: var(--color-text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    color: var(--color-text-primary);
}

.tab-btn.active {
    background: var(--color-bg-primary);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

/* Capture Modes */
.capture-mode {
    display: none;
}

.capture-mode.active {
    display: block;
}

/* Camera Container */
.camera-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px dashed var(--color-border);
    margin-bottom: 16px;
}

.camera-preview {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.camera-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.id-frame {
    width: 85%;
    height: 65%;
    border: 3px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.3);
}

.camera-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--color-text-muted);
}

.camera-placeholder i {
    font-size: 48px;
}

.camera-placeholder p {
    font-size: 14px;
}

.camera-placeholder.hidden {
    display: none;
}

/* Capture Buttons */
.capture-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.capture-buttons .btn {
    flex: 1;
}

/* Tips Card */
.tips-card {
    background: var(--color-primary-light);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 20px;
}

.tips-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.tips-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tips-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.tips-list i {
    width: 16px;
    color: var(--color-primary);
    font-size: 12px;
}

/* Captured Images */
.captured-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.captured-image-card {
    position: relative;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--color-border-light);
}

.captured-image-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.image-label {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 4px 10px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: white;
    background: rgba(0, 0, 0, 0.6);
    border-radius: var(--radius-sm);
}

.btn-retake {
    position: absolute;
    bottom: 8px;
    right: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    color: white;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.btn-retake:hover {
    background: rgba(0, 0, 0, 0.85);
}

/* Upload Grid */
.upload-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 480px) {
    .upload-grid {
        grid-template-columns: 1fr;
    }
}

.upload-card {
    position: relative;
}

.file-input {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 32px 20px;
    background: var(--color-bg-tertiary);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-label:hover {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-label i {
    font-size: 32px;
    color: var(--color-primary);
}

.upload-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.upload-hint {
    font-size: 12px;
    color: var(--color-text-muted);
}

.upload-preview {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 2px solid var(--color-success);
}

.upload-preview img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.btn-replace {
    position: absolute;
    bottom: 8px;
    right: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    color: white;
    background: var(--color-primary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

/* Selfie Container */
.selfie-container {
    margin-bottom: 24px;
}

.selfie-camera-container {
    position: relative;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    aspect-ratio: 3/4;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 2px dashed var(--color-border);
}

.selfie-preview {
    transform: scaleX(-1);
}

.selfie-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.face-guide {
    width: 200px;
    height: 260px;
    border: 3px solid rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
}

.selfie-captured {
    position: relative;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 3px solid var(--color-success);
}

.selfie-captured img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
}

.selfie-retake {
    bottom: 12px;
    right: 12px;
    padding: 10px 16px;
    font-size: 13px;
}

/* Consent Checkbox */
.consent-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    margin-top: 24px;
    margin-bottom: 8px;
}

.checkbox-input {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.checkbox-label {
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.5;
    cursor: pointer;
}

/* Error Message */
.error-message {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--color-error-light);
    border-radius: var(--radius-md);
    margin-top: 16px;
    margin-bottom: 8px;
}

.error-message i {
    color: var(--color-error);
    font-size: 16px;
    flex-shrink: 0;
}

.error-message span {
    font-size: 14px;
    color: var(--color-error);
}

/* Step Actions */
.step-actions {
    display: flex;
    gap: 12px;
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

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

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

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

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

.btn-secondary:hover:not(:disabled) {
    background: var(--color-border-light);
    color: var(--color-text-primary);
}

.btn-large {
    padding: 16px 28px;
    font-size: 15px;
    flex: 1;
}

/* Review Cards */
.review-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.review-card {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.review-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.review-card-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.btn-edit {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    color: var(--color-primary);
    background: transparent;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-edit:hover {
    background: var(--color-primary-light);
}

.review-info {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.review-label {
    font-size: 13px;
    color: var(--color-text-muted);
}

.review-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.review-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.review-image-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-bg-secondary);
}

.review-image-card img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
}

.review-image-label {
    position: absolute;
    top: 6px;
    left: 6px;
    padding: 3px 8px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: white;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 3px;
}

.review-selfie {
    max-width: 180px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.review-selfie img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
}

/* Success Screen */
.success-container {
    text-align: center;
    padding: 48px 24px;
}

.success-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-success-light);
    border-radius: var(--radius-full);
    animation: successPop 0.5s ease;
}

.success-icon i {
    font-size: 52px;
    color: var(--color-success);
}

@keyframes successPop {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.success-message {
    font-size: 16px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Progress Overlay */
.progress-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(23, 43, 77, 0.7);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

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

.progress-modal {
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    padding: 40px 48px;
    text-align: center;
    box-shadow: var(--shadow-xl);
    max-width: 320px;
    width: 90%;
}

.progress-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border-light);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    margin: 0 auto 20px;
    animation: spin 0.8s linear infinite;
}

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

.progress-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 20px;
}

.progress-bar-container {
    height: 8px;
    background: var(--color-bg-secondary);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), #4B9FFF);
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-percent {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-secondary);
}

/* Focus States for Accessibility */
.btn:focus-visible,
.tab-btn:focus-visible,
.form-select:focus-visible,
.checkbox-input:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

/* Responsive adjustments */
@media (max-width: 360px) {
    .container {
        padding: 16px 12px 32px;
    }
    
    .main-content {
        padding: 20px 14px;
    }
    
    .step-header h1 {
        font-size: 20px;
    }
    
    .btn-large {
        padding: 14px 20px;
        font-size: 14px;
    }
}