/**
 * VSOLE Solar – REI Expo 2026 Visitor Lead Management System
 * Core Design System & Responsive Stylesheet
 */

:root {
    --vsole-navy: #1A3B5B;
    --vsole-navy-dark: #0f2338;
    --vsole-navy-light: #244e78;
    --vsole-bg-light: #F5F7FA;
    --vsole-accent-light: #E8F0F7;
    --vsole-accent-border: #D0E1F0;
    --vsole-text-main: #263445;
    --vsole-text-muted: #5d6f85;
    --vsole-success: #198754;
    --vsole-error: #DC3545;
    --vsole-gold: #F59E0B;
    --vsole-gold-dark: #D97706;
    --vsole-white: #FFFFFF;
    --vsole-card-shadow: 0 4px 18px rgba(26, 59, 91, 0.08);
    --vsole-card-shadow-hover: 0 8px 28px rgba(26, 59, 91, 0.14);
    --vsole-radius-sm: 8px;
    --vsole-radius-md: 12px;
    --vsole-radius-lg: 16px;
    --vsole-radius-xl: 22px;
}

/* Base resets & typography */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--vsole-bg-light);
    color: var(--vsole-text-main);
    line-height: 1.55;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Brand utilities */
.bg-vsole-navy {
    background-color: var(--vsole-navy) !important;
}

.text-vsole-navy {
    color: var(--vsole-navy) !important;
}

.bg-vsole-light {
    background-color: var(--vsole-bg-light) !important;
}

.bg-vsole-accent {
    background-color: var(--vsole-accent-light) !important;
}

.border-vsole-accent {
    border-color: var(--vsole-accent-border) !important;
}

/* Header & Navbar */
.vsole-navbar {
    background-color: var(--vsole-navy);
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 10px rgba(15, 35, 56, 0.2);
    padding: 0.75rem 1rem;
}

.vsole-brand-logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    color: var(--vsole-white) !important;
}

.vsole-logo-svg {
    height: 40px;
    width: auto;
}

.vsole-brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.2px;
    line-height: 1.2;
}

.vsole-brand-subtitle {
    font-size: 0.75rem;
    opacity: 0.85;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

/* Expo badge */
.expo-badge {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: #000;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.35rem 0.75rem;
    border-radius: 50rem;
    box-shadow: 0 2px 6px rgba(245, 158, 11, 0.35);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

/* Cards */
.vsole-card {
    background: var(--vsole-white);
    border: 1px solid var(--vsole-accent-border);
    border-radius: var(--vsole-radius-lg);
    box-shadow: var(--vsole-card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.vsole-card-header {
    background-color: var(--vsole-white);
    border-bottom: 1px solid var(--vsole-accent-border);
    padding: 1.25rem 1.5rem;
    border-top-left-radius: var(--vsole-radius-lg);
    border-top-right-radius: var(--vsole-radius-lg);
}

.vsole-card-body {
    padding: 1.5rem;
}

/* Touch-friendly Form Controls */
.vsole-form-label {
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--vsole-text-main);
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.vsole-form-label .req {
    color: var(--vsole-error);
    font-size: 1rem;
}

.form-control, .form-select {
    border: 1.5px solid #cbd5e1;
    border-radius: var(--vsole-radius-md);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    color: var(--vsole-text-main);
    background-color: #ffffff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    min-height: 48px; /* Touch target minimum */
}

.form-control:focus, .form-select:focus {
    border-color: var(--vsole-navy);
    box-shadow: 0 0 0 0.22rem rgba(26, 59, 91, 0.18);
    outline: none;
}

textarea.form-control {
    min-height: 100px;
}

.input-group-text {
    background-color: var(--vsole-accent-light);
    border: 1.5px solid #cbd5e1;
    border-radius: var(--vsole-radius-md);
    color: var(--vsole-navy);
}

/* Buttons */
.btn-vsole {
    background-color: var(--vsole-navy);
    color: var(--vsole-white);
    border: 1px solid var(--vsole-navy);
    border-radius: var(--vsole-radius-md);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    min-height: 48px;
}

.btn-vsole:hover, .btn-vsole:focus {
    background-color: var(--vsole-navy-dark);
    border-color: var(--vsole-navy-dark);
    color: var(--vsole-white);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 59, 91, 0.25);
}

.btn-vsole-outline {
    background-color: transparent;
    color: var(--vsole-navy);
    border: 1.5px solid var(--vsole-navy);
    border-radius: var(--vsole-radius-md);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    min-height: 48px;
}

.btn-vsole-outline:hover, .btn-vsole-outline:focus {
    background-color: var(--vsole-accent-light);
    color: var(--vsole-navy);
    border-color: var(--vsole-navy);
}

/* Camera & Upload Area */
.image-upload-wrapper {
    background-color: #f8fafc;
    border: 2px dashed #94a3b8;
    border-radius: var(--vsole-radius-lg);
    padding: 1.25rem;
    text-align: center;
    transition: all 0.25s ease;
}

.image-upload-wrapper.has-images {
    border-style: solid;
    border-color: var(--vsole-accent-border);
    background-color: #ffffff;
}

.upload-action-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.btn-upload-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.25rem;
    border-radius: var(--vsole-radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
    min-height: 48px;
}

.btn-camera {
    background-color: var(--vsole-navy);
    color: #ffffff;
}

.btn-camera:hover {
    background-color: var(--vsole-navy-dark);
    color: #ffffff;
}

.btn-gallery {
    background-color: var(--vsole-accent-light);
    color: var(--vsole-navy);
    border: 1px solid var(--vsole-accent-border);
}

.btn-gallery:hover {
    background-color: #dbeafe;
    color: var(--vsole-navy);
}

/* Thumbnail Previews Grid */
.thumbnails-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.thumb-card {
    position: relative;
    border-radius: var(--vsole-radius-sm);
    overflow: hidden;
    background: #000;
    aspect-ratio: 16 / 10;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
    border: 2px solid #e2e8f0;
}

.thumb-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.2s ease;
}

.thumb-card:hover img {
    transform: scale(1.05);
}

.thumb-badge {
    position: absolute;
    bottom: 4px;
    left: 4px;
    background: rgba(0, 0, 0, 0.65);
    color: #fff;
    font-size: 0.68rem;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
}

.btn-remove-thumb {
    position: absolute;
    top: 4px;
    right: 4px;
    background: rgba(220, 53, 69, 0.9);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    transition: transform 0.15s ease, background-color 0.15s ease;
    z-index: 5;
}

.btn-remove-thumb:hover {
    transform: scale(1.15);
    background: #b02a37;
}

.image-counter-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background-color: var(--vsole-accent-light);
    color: var(--vsole-navy);
    font-size: 0.82rem;
    font-weight: 700;
    padding: 0.3rem 0.75rem;
    border-radius: 50rem;
    border: 1px solid var(--vsole-accent-border);
}

/* Processing Overlay */
.processing-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 35, 56, 0.75);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.processing-card {
    background: #ffffff;
    border-radius: var(--vsole-radius-lg);
    padding: 2rem 2.5rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    max-width: 90%;
    width: 360px;
}

.processing-card .spinner-border {
    width: 3.5rem;
    height: 3.5rem;
    color: var(--vsole-navy);
}

/* Success Card */
.success-hero {
    text-align: center;
    padding: 2.5rem 1.5rem;
}

.success-icon-bubble {
    width: 80px;
    height: 80px;
    background-color: #d1fae5;
    color: var(--vsole-success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 1.5rem auto;
    box-shadow: 0 8px 24px rgba(25, 135, 84, 0.2);
}

.reference-display-box {
    background-color: var(--vsole-accent-light);
    border: 2px dashed var(--vsole-navy);
    border-radius: var(--vsole-radius-md);
    padding: 1.25rem;
    margin: 1.5rem 0;
    display: inline-block;
    min-width: 260px;
}

.reference-number-code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 2rem;
    font-weight: 800;
    color: var(--vsole-navy);
    letter-spacing: 1px;
}

/* Admin Dashboard & Layout */
.admin-sidebar {
    background-color: var(--vsole-navy);
    color: #ffffff;
    min-height: 100vh;
    padding-top: 1rem;
    box-shadow: 3px 0 15px rgba(15, 35, 56, 0.15);
}

.admin-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #cbd5e1;
    padding: 0.85rem 1.25rem;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-left: 4px solid transparent;
    transition: all 0.2s ease;
}

.admin-nav-item:hover, .admin-nav-item.active {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.08);
    border-left-color: var(--vsole-gold);
}

.admin-nav-item i {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.admin-content-area {
    background-color: var(--vsole-bg-light);
    min-height: 100vh;
    padding: 2rem 1.5rem;
}

/* Stat Cards */
.stat-card {
    background: #ffffff;
    border-radius: var(--vsole-radius-lg);
    border: 1px solid var(--vsole-accent-border);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--vsole-card-shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: transform 0.2s ease;
}

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

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--vsole-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--vsole-navy);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--vsole-text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Data Table */
.vsole-table-container {
    background: #ffffff;
    border: 1px solid var(--vsole-accent-border);
    border-radius: var(--vsole-radius-lg);
    overflow: hidden;
    box-shadow: var(--vsole-card-shadow);
}

.vsole-table {
    margin-bottom: 0;
}

.vsole-table th {
    background-color: #f8fafc;
    color: var(--vsole-navy);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--vsole-accent-border);
    padding: 1rem 0.85rem;
    white-space: nowrap;
}

.vsole-table td {
    padding: 0.9rem 0.85rem;
    vertical-align: middle;
    border-bottom: 1px solid #edf2f7;
    font-size: 0.92rem;
}

.vsole-table tbody tr:hover {
    background-color: #f8fafc;
}

/* Lightbox Modal */
.lightbox-modal {
    background-color: rgba(0, 0, 0, 0.92);
}

.lightbox-modal .modal-content {
    background: transparent;
    border: none;
}

.lightbox-img {
    max-height: 80vh;
    max-width: 100%;
    object-fit: contain;
    margin: 0 auto;
    display: block;
    border-radius: var(--vsole-radius-sm);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* Responsive Adjustments */
@media (max-width: 575.98px) {
    .vsole-brand-subtitle {
        display: none;
    }

    .vsole-card-body {
        padding: 1.15rem;
    }

    .stat-value {
        font-size: 1.6rem;
    }

    .upload-action-buttons {
        flex-direction: column;
    }

    .upload-action-buttons .btn-upload-action {
        width: 100%;
    }

    .thumbnails-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .btn-vsole, .btn-vsole-outline {
        width: 100%;
    }

    .admin-content-area {
        padding: 1rem 0.75rem;
    }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    .thumbnails-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 768px) and (max-width: 991.98px) {
    .thumbnails-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}