/* ==========================================================================
   ALPR System v3.0 - CSS Design Tokens & Layout System
   ========================================================================== */

:root {
    /* HSL Color Tokens - Premium Evergrand Light Theme */
    --color-bg-deep: hsl(40, 30%, 97%);        /* Soft warm alabaster background */
    --color-bg-dark: hsl(40, 20%, 93%);        /* Slightly darker warm white for header/structure */
    --color-glass-surface: hsla(40, 30%, 100%, 0.75); /* Frosted warm white glass */
    --color-glass-border: hsla(41, 30%, 20%, 0.08);   /* Subtle warm border */
    --color-glass-border-focus: hsla(41, 73%, 45%, 0.45); /* Bright gold focus */
    
    --color-primary: hsl(41, 73%, 43%);       /* Primary Evergrand Gold (darkened for light background contrast) */
    --color-primary-hover: hsl(41, 80%, 36%); /* Hover state (deeper gold) */
    --color-accent: hsl(41, 73%, 43%);
    --color-accent-blue: hsl(41, 80%, 40%);
    --color-accent-teal: hsl(41, 68%, 37%);
    --color-accent-gold: hsl(41, 73%, 45%);
    --color-accent-bronze: hsl(41, 60%, 32%); /* Accent Bronze */
    --color-accent-cream: hsl(42, 65%, 85%);  /* Light gold-cream */
    
    --color-text-main: hsl(40, 20%, 15%);     /* Deep charcoal/bronze for high contrast readability */
    --color-text-muted: hsl(40, 12%, 38%);    /* Soft medium-gray for secondary text */
    --color-text-dim: hsl(40, 8%, 55%);       /* Dimmer warm gray */
    
    --color-success: hsl(145, 75%, 33%);     /* Darker success green for contrast */
    --color-warning: hsl(35, 80%, 43%);       /* Warning gold */
    --color-danger: hsl(350, 75%, 45%);       /* Danger red */

    /* Shadows & Transitions */
    --shadow-premium: 0 16px 40px -10px hsla(40, 20%, 30%, 0.12), 0 4px 12px -5px hsla(40, 20%, 30%, 0.05);
    --shadow-glow-gold: 0 0 25px -5px hsla(41, 73%, 43%, 0.18);
    --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius-lg: 16px;
    --border-radius-md: 10px;
    --border-radius-sm: 6px;
}

/* ==========================================================================
   Resets & Base Layout
   ========================================================================== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.hidden {
    display: none !important;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-bg-deep);
    color: var(--color-text-main);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, .brand h1, .brand h2 {
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
}

/* ==========================================================================
   Background Decorators (Glows)
   ========================================================================== */

.glow-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

.glow-1 {
    top: -10%;
    right: 15%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, hsla(41, 73%, 61%, 0.25) 0%, transparent 70%);
}

.glow-2 {
    bottom: 10%;
    left: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, hsla(35, 80%, 55%, 0.15) 0%, transparent 70%);
}

/* ==========================================================================
   Glassmorphism Helper Utility
   ========================================================================== */

.glass {
    background: var(--color-glass-surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-premium);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Outfit', sans-serif;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 10px 20px;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #fff;
    box-shadow: var(--shadow-glow-gold);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 0 30px -2px hsla(41, 73%, 45%, 0.45);
}

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

.btn-secondary {
    background-color: hsla(40, 10%, 85%, 0.4);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-main);
}

.btn-secondary:hover {
    background-color: hsla(40, 10%, 80%, 0.6);
    color: var(--color-text-main);
}

.btn-glass {
    background-color: hsla(40, 20%, 94%, 0.5);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-muted);
}

.btn-glass:hover {
    background-color: hsla(0, 0%, 100%, 0.07);
    color: var(--color-text-main);
}

.btn-danger {
    background-color: var(--color-danger);
    color: #fff;
    box-shadow: 0 0 20px -5px hsla(350, 75%, 55%, 0.25);
}

.btn-danger:hover {
    background-color: hsl(350, 80%, 60%);
    transform: translateY(-2px);
    box-shadow: 0 0 25px -2px hsla(350, 75%, 55%, 0.4);
}

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

.btn-block {
    display: flex;
    width: 100%;
}

/* ==========================================================================
   1. Login View
   ========================================================================== */

#login-view {
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

#login-view.active {
    display: flex;
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 40px;
    border-radius: var(--border-radius-lg);
    background: var(--color-glass-surface);
    backdrop-filter: blur(24px);
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-premium);
    animation: fadeInScale 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.96) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.brand {
    text-align: center;
    margin-bottom: 35px;
}

.brand-logo-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.brand-logo-large {
    max-height: 120px;
    max-width: 340px;
    object-fit: contain;
    filter: drop-shadow(0 0 15px hsla(41, 73%, 61%, 0.3));
    animation: pulseGlow 4s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
    from {
        filter: drop-shadow(0 0 8px hsla(41, 73%, 61%, 0.2));
    }
    to {
        filter: drop-shadow(0 0 20px hsla(41, 73%, 61%, 0.45));
    }
}

.brand-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-blue) 100%);
    color: #fff;
    font-size: 1.6rem;
    margin-bottom: 16px;
    box-shadow: var(--shadow-glow-gold);
}

.brand h1 {
    font-size: 1.8rem;
    letter-spacing: 1px;
    color: var(--color-text-main);
}

.brand h1 span {
    color: var(--color-primary-hover);
    font-weight: 800;
}

.brand p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 6px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    color: var(--color-text-dim);
    font-size: 1rem;
    transition: var(--transition-smooth);
}

.input-wrapper input {
    width: 100%;
    padding: 12px 16px 12px 48px;
    background-color: hsla(40, 20%, 98%, 0.8);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--border-radius-md);
    color: var(--color-text-main);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-smooth);
}

.input-wrapper input::placeholder {
    color: var(--color-text-dim);
}

.input-wrapper input:focus {
    border-color: var(--color-primary);
    background-color: hsla(40, 20%, 100%, 0.95);
    box-shadow: 0 0 0 3px hsla(41, 73%, 61%, 0.15);
}

.input-wrapper input:focus + i {
    color: var(--color-primary-hover);
}

.error-msg {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-danger);
    background-color: hsla(350, 75%, 55%, 0.1);
    border: 1px solid hsla(350, 75%, 55%, 0.25);
    padding: 10px 14px;
    border-radius: var(--border-radius-md);
    font-size: 0.85rem;
    margin-bottom: 24px;
    animation: shake 0.3s ease;
}

.error-msg.hidden {
    display: none;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* ==========================================================================
   2. Dashboard Layout
   ========================================================================== */

#dashboard-view {
    display: none;
    flex-direction: column;
    min-height: 100vh;
}

#dashboard-view.active {
    display: flex;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 40px;
    background: hsla(40, 20%, 94%, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand-logo-small {
    max-height: 48px;
    max-width: 170px;
    object-fit: contain;
    margin-right: 14px;
    filter: drop-shadow(0 0 4px hsla(41, 73%, 61%, 0.2));
}

.brand-icon-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-blue) 100%);
    color: #fff;
    font-size: 1rem;
    margin-right: 12px;
}

header .brand {
    display: flex;
    align-items: center;
    margin-bottom: 0;
}

header .brand h2 {
    font-size: 1.3rem;
    color: var(--color-text-main);
    letter-spacing: 0.5px;
}

header .brand h2 span {
    font-weight: 800;
    color: var(--color-primary-hover);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

#username-display {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-main);
}

.role-badge {
    font-family: 'Outfit', sans-serif;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 3px 8px;
    border-radius: 20px;
    border: 1px solid transparent;
}

.role-badge.admin {
    background-color: hsla(41, 73%, 45%, 0.12);
    border-color: hsla(41, 73%, 45%, 0.25);
    color: hsl(41, 73%, 35%);
}

.role-badge.viewer {
    background-color: hsla(40, 10%, 40%, 0.08);
    border-color: hsla(40, 10%, 40%, 0.18);
    color: var(--color-text-muted);
}

/* ==========================================================================
   Dashboard Content & Control Panel
   ========================================================================== */

.dashboard-content {
    flex: 1;
    padding: 30px 40px;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.control-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-radius: var(--border-radius-lg);
    position: relative;
    z-index: 10;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
    width: 320px;
}

.search-box i {
    position: absolute;
    left: 16px;
    color: var(--color-text-dim);
}

.search-box input {
    width: 100%;
    padding: 10px 16px 10px 44px;
    background-color: hsla(40, 20%, 98%, 0.8);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--border-radius-md);
    color: var(--color-text-main);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-smooth);
}

.search-box input:focus {
    border-color: var(--color-primary);
    background-color: hsla(40, 20%, 100%, 0.95);
    box-shadow: 0 0 0 3px hsla(41, 73%, 61%, 0.12);
}

.control-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Column Selector Dropdown Menu */
.column-selector-container {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    width: 240px;
    padding: 16px;
    border-radius: var(--border-radius-lg);
    background: hsla(40, 20%, 98%, 0.95);
    border: 1px solid var(--color-glass-border);
    box-shadow: var(--shadow-premium);
    z-index: 50;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dropdown-menu.hidden {
    display: none;
}

.dropdown-menu h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-dim);
    margin-bottom: 4px;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 250px;
    overflow-y: auto;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    cursor: pointer;
    user-select: none;
    transition: var(--transition-smooth);
    padding: 2px 0;
}

.checkbox-group label:hover {
    color: var(--color-text-main);
}

.checkbox-group input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background-color: hsla(40, 20%, 90%, 0.6);
    border: 1px solid var(--color-glass-border);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.checkbox-group input[type="checkbox"]:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary-hover);
}

.checkbox-group input[type="checkbox"]:checked::after {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: #fff;
    font-size: 0.6rem;
}

/* ==========================================================================
   Data Table Section
   ========================================================================== */

.table-container {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    flex: 1;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

th {
    font-family: 'Outfit', sans-serif;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-muted);
    padding: 16px 24px;
    background-color: hsla(40, 20%, 93%, 0.4);
    border-bottom: 1px solid var(--color-glass-border);
    font-weight: 600;
}

.sortable-header {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
}

.sortable-header:hover {
    background-color: hsla(40, 20%, 88%, 0.6);
}

.sortable-header i {
    margin-left: 6px;
    font-size: 0.8rem;
    transition: color 0.2s ease;
}

.sort-icon-disabled {
    color: var(--color-text-dim);
    opacity: 0.3;
}

.sortable-header:hover .sort-icon-disabled {
    opacity: 0.7;
    color: var(--color-accent);
}

.sort-icon-active {
    color: var(--color-accent) !important;
    text-shadow: 0 0 8px hsla(41, 73%, 61%, 0.4);
}

td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-glass-border);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    vertical-align: middle;
    transition: var(--transition-smooth);
}

tbody tr {
    transition: var(--transition-smooth);
}

tbody tr:hover {
    background-color: hsla(41, 73%, 45%, 0.04);
}

tbody tr:hover td {
    color: var(--color-text-main);
}

/* Thumbnail layout */
.vehicle-thumbnail {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--color-glass-border);
    cursor: pointer;
    background-color: hsla(40, 20%, 94%, 0.8);
    position: relative;
    transition: var(--transition-smooth);
}

.vehicle-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.vehicle-thumbnail:hover {
    transform: scale(1.08);
    border-color: var(--color-primary);
    box-shadow: 0 0 10px hsla(41, 73%, 45%, 0.25);
}

.vehicle-thumbnail:hover img {
    filter: brightness(1.1);
}

/* Highlight badge for plates */
.plate-badge {
    display: inline-block;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.85rem;
    background-color: hsla(40, 20%, 94%, 0.8);
    border: 1px solid var(--color-glass-border);
    color: var(--color-text-main);
    padding: 4px 10px;
    border-radius: 6px;
    letter-spacing: 0.5px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* Confidence indicators */
.conf-high { color: var(--color-success); font-weight: 500; }
.conf-med { color: var(--color-warning); font-weight: 500; }
.conf-low { color: var(--color-danger); font-weight: 500; }

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

/* ==========================================================================
   3. Image Modal Viewer
   ========================================================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: hsla(40, 30%, 10%, 0.55);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 40px;
    animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal.active {
    display: flex;
}

.modal-close {
    position: absolute;
    top: 24px;
    right: 32px;
    color: var(--color-text-muted);
    font-size: 2.2rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    user-select: none;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: hsla(40, 20%, 90%, 0.5);
    border: 1px solid var(--color-glass-border);
}

.modal-close:hover {
    color: var(--color-text-main);
    background-color: hsla(350, 75%, 55%, 0.15);
    border-color: hsla(350, 75%, 55%, 0.3);
}

.modal-content {
    width: 100%;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    animation: scaleUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-image-container {
    width: 100%;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-glass-border);
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    background-color: #000;
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.modal-image-container img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    cursor: zoom-in;
    transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    transform-origin: center center;
}

.modal-image-container img.zoomed {
    cursor: zoom-out;
    transform: scale(2.5);
}

/* Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3.5px solid hsla(40, 20%, 20%, 0.08);
    border-top-color: var(--color-primary-hover);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    position: absolute;
}

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

.modal-info {
    border-radius: var(--border-radius-lg);
    padding: 20px 28px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-info-row {
    display: flex;
    gap: 40px;
}

.info-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-dim);
}

.info-item span {
    font-size: 1.05rem;
    color: var(--color-text-main);
    font-weight: 500;
}

.info-item span.highlight {
    font-family: 'Outfit', sans-serif;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.5px;
}