/* 
   TrackExpress CSS Stylesheet
   Designed with premium aesthetics, fluid animations, and mobile responsiveness
*/

/* Core Design System Tokens */
:root {
    --primary: #1A73E8;
    --primary-hover: #1557B0;
    --primary-light: #E8F0FE;
    
    --success: #34A853;
    --success-hover: #137333;
    --success-light: #E6F4EA;

    --warning: #FBBC04;
    --warning-dark: #B06000;
    --warning-light: #FEF7E0;

    --danger: #D93025;
    --danger-light: #FCE8E6;

    --neutral-dark: #202124;
    --neutral-gray: #5F6368;
    --neutral-light: #F1F3F4;
    --neutral-white: #FFFFFF;
    --border-color: #DADCE0;

    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px -5px rgba(60,64,67,0.1), 0 8px 10px -6px rgba(60,64,67,0.1);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Global Styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: #F8F9FA;
    color: var(--neutral-dark);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
}

/* App Layout */
.app-header {
    background-color: var(--neutral-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.logo-img {
    height: 38px;
    max-width: 100%;
    object-fit: contain;
    display: block;
}

.nav-links {
    display: flex;
    gap: 12px;
}

.nav-btn {
    background: none;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 14px;
    color: var(--neutral-gray);
    cursor: pointer;
    transition: var(--transition-fast);
}

.nav-btn:hover {
    background-color: var(--neutral-light);
    color: var(--neutral-dark);
}

.nav-btn.active {
    background-color: var(--primary-light);
    color: var(--primary);
}

/* Main Content Area */
.app-content {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 32px 24px;
    position: relative;
}

/* Screen Management (Single Page App behavior) */
.screen {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.screen.active {
    display: block;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 15px;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
    white-space: nowrap;
}

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

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

.btn-secondary {
    background-color: var(--neutral-light);
    border-color: var(--border-color);
    color: var(--neutral-gray);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    color: var(--neutral-dark);
}

.btn-full-width {
    width: 100%;
}

.btn-back {
    background: none;
    border: none;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--neutral-gray);
    font-weight: 500;
    cursor: pointer;
    font-size: 15px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: var(--transition-fast);
}

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

.back-link-container {
    margin-bottom: 24px;
}

/* Badges for status colors */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-lg {
    padding: 6px 16px;
    font-size: 15px;
}

.badge-recibido {
    background-color: var(--neutral-light);
    color: var(--neutral-gray);
}

.badge-en-bodega {
    background-color: var(--warning-light);
    color: var(--warning-dark);
}

.badge-en-transito {
    background-color: var(--primary-light);
    color: var(--primary);
}

.badge-en-reparto {
    background-color: #F3E8FF;
    color: #7C3AED;
}

.badge-entregado {
    background-color: var(--success-light);
    color: var(--success);
}

/* Card layout */
.card {
    background-color: var(--neutral-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 28px;
    box-shadow: var(--shadow-md);
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--neutral-dark);
}

/* Form Controls */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-weight: 600;
    font-size: 14px;
    color: var(--neutral-dark);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background-color: var(--neutral-white);
    font-size: 15px;
    outline: none;
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}

.select-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235F6368' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 48px;
}

.required {
    color: var(--danger);
}

.help-text {
    font-size: 12px;
    color: var(--neutral-gray);
}

.input-with-action {
    display: flex;
    gap: 10px;
}

.input-with-action input {
    flex: 1;
}

.locked-input {
    background-color: var(--neutral-light);
    color: var(--neutral-gray);
    cursor: not-allowed;
}

/* ==========================================================================
   1. PANTALLA PÚBLICA - INICIO (HERO & BUSCADOR)
   ========================================================================== */
.hero-section {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
    align-items: center;
    padding: 40px 0;
}

.badge-accent {
    background-color: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    display: inline-block;
    margin-bottom: 16px;
}

.hero-title {
    font-size: 46px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 16px;
    color: var(--neutral-dark);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--neutral-gray);
    margin-bottom: 32px;
    max-width: 480px;
}

/* Big Premium Search Form */
.search-form {
    margin-bottom: 32px;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    background-color: var(--neutral-white);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
    padding: 8px 8px 8px 24px;
    align-items: center;
    transition: var(--transition-normal);
}

.search-input-wrapper:focus-within {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(26, 115, 232, 0.1);
}

.search-input-icon {
    color: var(--neutral-gray);
    margin-right: 16px;
    flex-shrink: 0;
}

.search-input-wrapper input {
    border: none;
    background: none;
    flex: 1;
    height: 48px;
    font-size: 16px;
    font-weight: 500;
    outline: none;
}

.search-submit-btn {
    padding: 0 28px;
    height: 48px;
    font-size: 15px;
}

.search-error-msg {
    color: var(--danger);
    font-size: 14px;
    font-weight: 500;
    margin-top: 8px;
    padding-left: 8px;
}

.test-guides-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.test-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--neutral-gray);
}

.test-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.test-guide-pill {
    background-color: var(--neutral-white);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
}

.test-guide-pill:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: var(--primary-light);
}

.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.main-visual-card {
    width: 100%;
    max-width: 420px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--neutral-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
}

.visual-decor-bg {
    position: absolute;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle, rgba(26, 115, 232, 0.04) 0%, rgba(255,255,255,0) 70%);
    top: -20%;
    left: -20%;
}

.visual-illustration {
    width: 90%;
    height: 90%;
    z-index: 1;
}

/* ==========================================================================
   2. PANTALLA PÚBLICA - ESTADO DEL ENVÍO
   ========================================================================== */
.status-layout {
    max-width: 800px;
    margin: 0 auto;
}

.status-card {
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
}

.status-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
    margin-bottom: 28px;
}

.card-subtitle {
    font-size: 13px;
    font-weight: 700;
    color: var(--neutral-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 4px;
}

.guide-number-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--neutral-dark);
}

/* Stepper Tracker Graphic */
.status-progress-tracker {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin-bottom: 36px;
    padding: 0 8px;
}

/* Connector Line behind steps */
.status-progress-tracker::before {
    content: '';
    position: absolute;
    top: 15px;
    left: 0;
    right: 0;
    height: 4px;
    background-color: var(--neutral-light);
    z-index: 1;
}

.progress-line-active {
    position: absolute;
    top: 15px;
    left: 0;
    height: 4px;
    background-color: var(--primary);
    z-index: 2;
    transition: width 0.5s ease-out;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 3;
    width: 20%;
}

.step-node {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--neutral-white);
    border: 3px solid var(--neutral-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-gray);
    font-weight: 700;
    font-size: 13px;
    transition: var(--transition-normal);
}

.step-label {
    margin-top: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--neutral-gray);
    text-align: center;
    white-space: nowrap;
}

/* Stepper States */
.step-item.completed .step-node {
    background-color: var(--success);
    border-color: var(--success);
    color: var(--neutral-white);
}

.step-item.active .step-node {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--neutral-white);
    box-shadow: 0 0 0 4px rgba(26, 115, 232, 0.25);
}

.step-item.completed .step-label {
    color: var(--neutral-dark);
}

.step-item.active .step-label {
    color: var(--primary);
    font-weight: 700;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
    background-color: var(--neutral-light);
    padding: 20px;
    border-radius: var(--radius-md);
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--neutral-gray);
    text-transform: uppercase;
}

.info-value {
    font-size: 16px;
    color: var(--neutral-dark);
}

.text-bold {
    font-weight: 700;
}

.text-success {
    color: var(--success);
}

.card-actions {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

/* ==========================================================================
   3. PANTALLA PÚBLICA - HISTORIAL (TIMELINE)
   ========================================================================== */
.history-layout {
    max-width: 760px;
    margin: 0 auto;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.route-badge-summary {
    background-color: var(--neutral-light);
    border: 1px solid var(--border-color);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    color: var(--neutral-gray);
}

.timeline-container {
    position: relative;
    padding-left: 36px;
}

/* Timeline Vertical Line */
.timeline-container::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 8px;
    bottom: 8px;
    width: 3px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 32px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

/* Circle Timeline Indicator */
.timeline-marker {
    position: absolute;
    left: -36px;
    top: 4px;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background-color: var(--neutral-white);
    border: 3px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-gray);
    z-index: 2;
    transition: var(--transition-normal);
}

.timeline-item.latest .timeline-marker {
    border-color: var(--primary);
    background-color: var(--primary);
    color: var(--neutral-white);
    box-shadow: 0 0 0 4px rgba(26, 115, 232, 0.2);
}

.timeline-card {
    background-color: var(--neutral-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 18px 22px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.timeline-card:hover {
    box-shadow: var(--shadow-md);
}

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

.timeline-time-group {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--neutral-gray);
}

.timeline-location {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 700;
    color: var(--neutral-dark);
}

.timeline-desc {
    font-size: 15px;
    color: var(--neutral-dark);
    margin-bottom: 8px;
}

/* Image Attachment mock in timeline */
.timeline-photo-attachment {
    margin-top: 12px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    max-width: 240px;
    border: 1px solid var(--border-color);
}

.timeline-photo-attachment img {
    width: 100%;
    height: 140px;
    object-fit: cover;
    display: block;
}

/* ==========================================================================
   4. ÁREA INTERNA - LOGIN
   ========================================================================== */
.login-container {
    max-width: 440px;
    margin: 40px auto;
}

.login-card {
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.login-logo-img {
    height: 56px;
    max-width: 100%;
    object-fit: contain;
    display: block;
}

.login-title {
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 6px;
}

.login-subtitle {
    font-size: 14px;
    color: var(--neutral-gray);
    text-align: center;
    margin-bottom: 24px;
}

.login-error-msg {
    color: var(--danger);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 16px;
    text-align: center;
}

.login-help-box {
    margin-top: 24px;
    background-color: var(--neutral-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    font-size: 12px;
    color: var(--neutral-gray);
}

.login-help-box code {
    background-color: #E2E8F0;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: monospace;
    font-size: 13px;
    color: var(--neutral-dark);
}

/* ==========================================================================
   OPERATOR INTERFACE COMMON LAYOUT
   ========================================================================== */
.operator-layout-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.operator-page-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--neutral-dark);
}

.operator-page-subtitle {
    font-size: 15px;
    color: var(--neutral-gray);
}

/* Navigation tabs inside operator panel */
.operator-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
    gap: 4px;
}

.tab-btn {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    padding: 12px 20px;
    font-weight: 600;
    font-size: 14px;
    color: var(--neutral-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-fast);
}

.tab-btn:hover {
    color: var(--neutral-dark);
    border-bottom-color: var(--border-color);
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ==========================================================================
   8. PANEL DE OPERADOR (DASHBOARD)
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background-color: var(--neutral-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

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

.stat-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon-wrapper.blue {
    background-color: var(--primary-light);
    color: var(--primary);
}

.stat-icon-wrapper.orange {
    background-color: var(--warning-light);
    color: var(--warning-dark);
}

.stat-icon-wrapper.purple {
    background-color: #F3E8FF;
    color: #7C3AED;
}

.stat-icon-wrapper.green {
    background-color: var(--success-light);
    color: var(--success);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--neutral-gray);
}

.stat-number {
    font-size: 24px;
    font-weight: 800;
    color: var(--neutral-dark);
}

/* Dashboard List */
.dashboard-card {
    padding: 20px 24px;
}

.recent-list-container {
    margin-top: 12px;
}

/* ==========================================================================
   5. PANEL DE GUÍAS (TABLE)
   ========================================================================== */
.table-filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.filter-search-box {
    width: 100%;
    max-width: 360px;
    background-color: var(--neutral-white);
    box-shadow: none;
    border-radius: var(--radius-sm);
    padding: 4px 4px 4px 16px;
}

.filter-search-box input {
    height: 38px;
    font-size: 14px;
}

.guides-card {
    padding: 0;
    overflow: hidden;
}

.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    text-align: left;
}

.data-table th, .data-table td {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: #F8F9FA;
    font-weight: 600;
    color: var(--neutral-gray);
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.5px;
}

.data-table tbody tr {
    transition: var(--transition-fast);
}

.data-table tbody tr:hover {
    background-color: #FAFBFB;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.actions-cell {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.btn-table-action {
    background: none;
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-table-action:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: var(--primary-light);
}

.btn-table-action.primary {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--neutral-white);
}

.btn-table-action.primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--neutral-gray);
}

/* ==========================================================================
   6 & 7. CREAR GUÍA / AGREGAR MOVIMIENTO FORM LAYOUT
   ========================================================================== */
.form-layout {
    max-width: 800px;
    margin: 0 auto;
}

.form-card {
    padding: 32px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
}

.card-title-lg {
    font-size: 24px;
    font-weight: 800;
    color: var(--neutral-dark);
    margin-bottom: 6px;
}

.card-subtitle-lg {
    font-size: 14px;
    color: var(--neutral-gray);
    margin-bottom: 28px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 28px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-actions-bar {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

/* File/Photo Simulation Selector */
.photo-upload-selector-wrapper {
    display: flex;
    gap: 16px;
    align-items: center;
}

.photo-placeholder-card {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    flex: 1;
    max-width: 320px;
    transition: var(--transition-fast);
}

.photo-placeholder-card:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
    color: var(--primary);
}

.photo-icon {
    color: var(--neutral-gray);
}

.photo-placeholder-card:hover .photo-icon {
    color: var(--primary);
}

.photo-placeholder-card span {
    font-size: 13px;
    font-weight: 600;
    color: var(--neutral-gray);
    text-align: center;
}

.photo-placeholder-card:hover span {
    color: var(--primary);
}

.simulated-photo-preview {
    position: relative;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    width: 200px;
    height: 130px;
}

.simulated-photo-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-remove-photo {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(217, 48, 37, 0.85);
    color: var(--neutral-white);
    border: none;
    padding: 4px 8px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: var(--transition-fast);
}

.btn-remove-photo:hover {
    background-color: var(--danger);
}

/* ==========================================================================
   FLOATING DEMO CONTROLLER
   ========================================================================== */
.demo-controller {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
}

.demo-trigger-btn {
    background-color: #202124;
    color: var(--neutral-white);
    border: none;
    border-radius: var(--radius-full);
    padding: 12px 24px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-normal);
}

.demo-trigger-btn:hover {
    transform: scale(1.05);
    background-color: #000;
}

.pulse-indicator {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background-color: #34A853;
    display: inline-block;
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(52, 168, 83, 0.7);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(52, 168, 83, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(52, 168, 83, 0);
    }
}

.demo-menu {
    position: absolute;
    bottom: 60px;
    right: 0;
    width: 320px;
    background-color: var(--neutral-white);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: none;
    animation: slideUp var(--transition-normal);
}

.demo-menu.active {
    display: block;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.demo-menu-header {
    background-color: var(--neutral-dark);
    color: var(--neutral-white);
    padding: 12px 16px;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-close-demo {
    background: none;
    border: none;
    color: var(--neutral-gray);
    font-size: 20px;
    cursor: pointer;
}

.btn-close-demo:hover {
    color: var(--neutral-white);
}

.demo-menu-sections {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.demo-section-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.demo-section-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--neutral-gray);
    margin-bottom: 4px;
    padding-left: 8px;
}

.demo-link {
    background: none;
    border: none;
    text-align: left;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    color: var(--neutral-dark);
    cursor: pointer;
    transition: var(--transition-fast);
}

.demo-link:hover {
    background-color: var(--primary-light);
    color: var(--primary);
}

/* Footer Section styling */
footer.app-footer {
    background-color: var(--neutral-white);
    border-top: 1px solid var(--border-color);
    padding: 20px 24px;
    margin-top: 48px;
    font-size: 13px;
    color: var(--neutral-gray);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-version {
    font-weight: 600;
}

/* ==========================================================================
   MEDIA QUERIES (MOBILE RESPONSIVENESS)
   ========================================================================== */
@media (max-width: 768px) {
    /* Main Layout settings */
    .app-content {
        padding: 20px 16px;
    }

    .hero-section {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 20px 0;
    }

    .hero-visual {
        order: -1; /* visual on top for mobile tracking */
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 15px;
        margin-bottom: 24px;
    }

    .search-input-wrapper {
        padding: 4px 4px 4px 16px;
    }

    .search-input-wrapper input {
        height: 40px;
        font-size: 15px;
    }

    .search-submit-btn {
        height: 40px;
        padding: 0 16px;
    }

    /* Stepper Mobile adjustments */
    .status-progress-tracker {
        flex-direction: column;
        gap: 20px;
        padding-left: 20px;
    }

    .status-progress-tracker::before {
        left: 28px;
        top: 0;
        bottom: 0;
        width: 4px;
        height: auto;
    }

    .progress-line-active {
        left: 28px;
        top: 0;
        width: 4px !important; /* height is managed instead */
        background-color: var(--primary);
    }

    .step-item {
        flex-direction: row;
        width: 100%;
        gap: 16px;
        align-items: center;
    }

    .step-label {
        margin-top: 0;
        text-align: left;
    }

    /* Info Grid mobile */
    .info-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    /* Form Grid mobile */
    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-group.full-width {
        grid-column: span 1;
    }

    .photo-upload-selector-wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .photo-placeholder-card {
        max-width: 100%;
    }

    /* Operator layout mobile */
    .operator-layout-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .operator-action-group {
        width: 100%;
    }

    .operator-action-group button {
        width: 100%;
    }

    /* Responsive tables: CARD LAYOUT (Critical UX improvement for mobile) */
    .data-table, .data-table thead, .data-table tbody, .data-table th, .data-table td, .data-table tr {
        display: block;
    }

    .data-table thead tr {
        position: absolute;
        top: -9999px;
        left: -9999px;
    }

    .data-table tr {
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        margin-bottom: 16px;
        padding: 12px;
        background-color: var(--neutral-white);
        box-shadow: var(--shadow-sm);
    }

    .data-table td {
        border-bottom: none;
        padding: 8px 12px;
        position: relative;
        padding-left: 45%;
        text-align: left;
    }

    /* Table row header labels in mobile */
    .data-table td::before {
        position: absolute;
        top: 8px;
        left: 12px;
        width: 40%;
        padding-right: 10px;
        white-space: nowrap;
        font-weight: 700;
        color: var(--neutral-gray);
        font-size: 11px;
        text-transform: uppercase;
        content: attr(data-label);
    }

    .data-table td.actions-cell {
        padding-left: 12px;
        justify-content: flex-start;
        border-top: 1px solid var(--neutral-light);
        margin-top: 8px;
        padding-top: 12px;
    }

    .data-table td.actions-cell::before {
        display: none;
    }

    .text-right {
        text-align: left;
    }

    /* Header mobile */
    .header-container {
        padding: 12px 16px;
    }

    .logo-text {
        font-size: 18px;
    }

    .nav-btn span {
        display: none; /* Icon-only nav buttons on mobile */
    }

    .nav-btn {
        padding: 8px;
    }

    /* Footer Mobile */
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}