/* Modern AI Token Counter - Minimalistic Design */

/* CSS Variables for Design System */
:root {
    /* Primary Colors - Deep Blacks */
    --deep-black: #0a0a0a;
    --rich-charcoal: #1a1a1a;
    --dark-graphite: #2a2a2a;
    
    /* Text Colors */
    --text-white: #ffffff;
    --text-light: #e5e5e5;
    --text-muted: #a0a0a0;
    --text-subtle: #737373;
    
    /* Surface & Border Colors */
    --glass-surface: rgba(255, 255, 255, 0.03);
    --subtle-border: rgba(255, 255, 255, 0.1);
    --hover-state: rgba(255, 255, 255, 0.05);
    --active-border: rgba(255, 255, 255, 0.2);
    
    /* Accent Colors (minimal use) */
    --platinum-gold: #ffd700;
    --cyber-blue: #00d9ff;
    
    /* Layout & Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* Spacing & Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition-base: 0.2s ease;
}

/* Reset & Base Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    color: var(--text-light);
    line-height: 1.6;
    background-color: var(--deep-black);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    margin: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-top: 0;
}

.display-4 {
    font-size: 3.5rem;
    font-weight: 300;
    line-height: 1.2;
}

@media (max-width: 767px) {
    .display-4 {
        font-size: 2.5rem;
    }
}

/* Layout - Three Column Grid */
.main-container {
    width: 100%;
    padding: 0;
    margin: 0;
    background: var(--deep-black);
    min-height: calc(100vh - 48px - 40px);
    position: relative;
    flex: 1 0 auto;
}

.three-column-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1.5fr;
    gap: 0.5rem;
    height: calc(100vh - 48px - 40px);
    width: 100%;
    overflow: hidden;
    padding: 0.5rem;
}

.left-column,
.middle-column,
.right-column {
    padding: 1rem;
    overflow-y: auto;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.left-column {
    background: rgba(255, 255, 255, 0.02);
}

.middle-column {
    background: var(--deep-black);
}

.right-column {
    background: rgba(255, 255, 255, 0.01);
}

/* Results container adjustments */
#results-container {
    flex: 1;
}

#comparison-section {
    flex: 1;
}

/* Column Headers */
.column-header {
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--subtle-border);
}

.column-header h4 {
    color: var(--text-light);
    font-weight: 600;
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.column-header p {
    margin-bottom: 0;
    font-size: 0.75rem;
}

/* Cards */
.input-card {
    background: var(--glass-surface);
    border-radius: var(--radius-md);
    padding: 1rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Navigation */
.navbar {
    background: var(--rich-charcoal) !important;
    border-bottom: 1px solid var(--subtle-border);
    box-shadow: var(--shadow-sm);
}

.navbar-dark {
    background-color: var(--rich-charcoal) !important;
}

.navbar-brand {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    color: var(--text-white) !important;
}

.navbar-brand small {
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.7;
    color: var(--text-light) !important;
}

/* Forms */
.form-control,
.form-select {
    background: var(--glass-surface);
    border: 1px solid var(--subtle-border);
    color: var(--text-light);
    transition: all var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    background: var(--hover-state);
    border-color: var(--active-border);
    outline: none;
    box-shadow: none;
    color: var(--text-white);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.8;
}

.form-control-sm,
.form-select-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* Select Dropdown Styling */
.select-wrapper {
    position: relative;
}

.select-wrapper .form-select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: 2.5rem;
    cursor: pointer;
    background-color: var(--dark-graphite);
    border: 1px solid var(--active-border);
}

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

.select-wrapper .select-arrow {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: all var(--transition-base);
}

.select-wrapper .form-select:focus + .select-arrow {
    color: var(--text-light);
}

.select-wrapper .form-select:hover + .select-arrow {
    color: var(--text-light);
}

/* Option styling for better visibility */
.form-select option {
    background: var(--rich-charcoal);
    color: var(--text-light);
    padding: 0.5rem;
}

.form-select optgroup {
    background: var(--dark-graphite);
    color: var(--text-muted);
    font-weight: 600;
}

/* Unified Input Area */
.unified-input {
    min-height: 100px;
    max-height: 150px;
    resize: vertical;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.unified-input.dragover {
    background: var(--hover-state);
    border-color: var(--active-border);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.05);
}

/* File Drop Zone */
.file-drop-zone {
    background: var(--glass-surface);
    border: 1px solid var(--subtle-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    transition: all var(--transition-base);
    cursor: pointer;
    min-height: 80px;
}

.file-drop-zone:hover {
    background: var(--hover-state);
    border-color: var(--active-border);
}

.file-drop-zone.dragover {
    background: var(--hover-state);
    border-color: var(--active-border);
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.05);
}

.file-drop-zone i {
    color: var(--text-muted);
}

.file-browse-link {
    color: var(--text-light);
    text-decoration: underline;
    transition: color var(--transition-base);
}

.file-browse-link:hover {
    color: var(--text-white);
}

/* Minimal Buttons */
.btn {
    font-weight: 500;
    border-radius: var(--radius-md);
    padding: 0.375rem 0.75rem;
    transition: all var(--transition-base);
    border: none;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

.btn-minimal-primary {
    background: var(--dark-graphite);
    color: var(--text-light);
    border: 1px solid var(--subtle-border);
}

.btn-minimal-primary:hover {
    background: var(--rich-charcoal);
    color: var(--text-white);
    border-color: var(--active-border);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-minimal-secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--subtle-border);
}

.btn-minimal-secondary:hover {
    background: var(--glass-surface);
    color: var(--text-light);
    border-color: var(--subtle-border);
}

.btn-primary {
    background: var(--cyber-blue);
    color: var(--deep-black);
    border: none;
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--cyber-blue);
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.3);
}

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

/* Labels & Text */
.form-label {
    color: var(--text-light);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-label-sm {
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 0.375rem;
}

.form-text {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

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

.small {
    font-size: 0.875rem;
}

/* Form Check */
.form-check-input {
    background-color: var(--glass-surface);
    border-color: var(--subtle-border);
}

.form-check-input:checked {
    background-color: var(--cyber-blue);
    border-color: var(--cyber-blue);
}

.form-check-input:focus {
    border-color: var(--active-border);
    box-shadow: none;
}

/* Auth Notice */
.auth-notice {
    padding-top: 1rem;
    border-top: 1px solid var(--subtle-border);
}

.auth-notice a {
    text-decoration: underline;
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.badge.bg-secondary {
    background: var(--glass-surface) !important;
    color: var(--text-muted);
    border: 1px solid var(--subtle-border);
}

.badge.bg-primary {
    background: var(--dark-graphite) !important;
    color: var(--text-light);
    border: 1px solid var(--subtle-border);
}

.badge.bg-success {
    background: var(--dark-graphite) !important;
    color: var(--text-light);
    border: 1px solid var(--subtle-border);
}

.badge.bg-warning {
    background: var(--dark-graphite) !important;
    color: var(--platinum-gold);
    border: 1px solid var(--subtle-border);
}

/* Tables */
.table {
    font-size: 0.875rem;
    color: var(--text-light);
}

.table thead th {
    background: transparent;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--subtle-border);
}

/* Alerts */
.alert {
    border-radius: var(--radius-md);
    border: 1px solid var(--subtle-border);
    padding: 0.75rem 1rem;
}

.alert-info {
    background: var(--glass-surface);
    color: var(--text-light);
    border-color: var(--subtle-border);
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    color: var(--text-light);
    border-color: rgba(40, 167, 69, 0.3);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    color: var(--text-light);
    border-color: rgba(220, 53, 69, 0.3);
}

/* Modals */
.modal-content {
    background: var(--rich-charcoal);
    border: 1px solid var(--subtle-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.modal-header {
    background: var(--dark-graphite);
    border-bottom: 1px solid var(--subtle-border);
}

.modal-header .modal-title {
    color: var(--text-white);
    font-weight: 700;
}

.modal-header .btn-close {
    filter: invert(1);
}

/* Spinners & Loading */
.spinner-border {
    color: var(--text-muted);
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

#processing-indicator {
    opacity: 0.8;
}

/* Initial State */
#initialState {
    opacity: 0.5;
}

#initialState i {
    color: var(--text-muted);
}

/* File Info */
#file-info {
    margin-top: 0.5rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
}

#file-info .badge {
    background: var(--dark-graphite);
    color: var(--text-muted);
    border: 1px solid var(--subtle-border);
    font-weight: 500;
}

/* Comparison Section */
#comparison-section {
    margin-top: 1rem;
    padding-top: 1rem;
}

/* Footer */
footer {
    background: var(--rich-charcoal);
    color: var(--text-muted);
    border-top: 1px solid var(--subtle-border);
    position: relative;
    z-index: 1020;
    margin-top: 0;
    flex-shrink: 0;
    padding: 0.5rem 0;
}

footer .container-fluid {
    padding-right: 1rem;
    padding-left: 1rem;
}

footer .row {
    align-items: center;
}

footer p {
    margin-bottom: 0;
}

footer a {
    color: var(--text-light);
    text-decoration: none;
    transition: all var(--transition-base);
    font-weight: 500;
}

footer a:hover {
    color: var(--cyber-blue);
}

/* Special styling for inline link */
footer p a {
    color: var(--platinum-gold);
    font-weight: 600;
}

footer p a:hover {
    color: var(--text-white);
    text-decoration: underline;
}

@media (max-width: 767px) {
    footer .text-md-end {
        text-align: left !important;
        margin-top: 0.5rem;
    }
}

/* HTMX Indicators */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline-block;
}

.htmx-request button[type="submit"] {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Dropdown */
.dropdown-menu {
    background: var(--rich-charcoal);
    border: 1px solid var(--subtle-border);
    box-shadow: var(--shadow-sm);
}

.dropdown-item {
    color: var(--text-light);
    transition: all var(--transition-base);
}

.dropdown-item:hover {
    background: var(--hover-state);
    color: var(--text-white);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--deep-black);
}

::-webkit-scrollbar-thumb {
    background: var(--subtle-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--active-border);
}

/* Bootstrap Overrides */
.bg-primary {
    background-color: var(--cyber-blue) !important;
}

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

.text-primary {
    color: var(--cyber-blue) !important;
}

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

/* Navbar Button Overrides */
.navbar .btn-outline-light {
    color: var(--text-light);
    border-color: var(--text-muted);
}

.navbar .btn-outline-light:hover {
    color: var(--deep-black);
    background-color: var(--text-light);
    border-color: var(--text-light);
}

.navbar .dropdown-toggle {
    color: var(--text-light) !important;
}

.navbar .text-light {
    color: var(--text-light) !important;
}

/* Responsive Design */
@media (max-width: 991px) {
    .three-column-grid {
        display: grid;
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        gap: 0.5rem;
        height: auto;
        min-height: calc(100vh - 48px - 40px);
        padding: 0.5rem;
    }
    
    .left-column,
    .middle-column,
    .right-column {
        padding: 0.75rem;
        height: auto;
        min-height: auto;
        margin-bottom: 0.5rem;
    }
    
    /* Order columns for mobile */
    .left-column {
        order: 1;
    }
    
    .middle-column {
        order: 2;
    }
    
    .right-column {
        order: 3;
        display: none; /* Hide comparison on mobile by default */
    }
    
    .right-column.has-comparison {
        display: block; /* Show when comparison is active */
    }
    
    /* Adjust stat cards on smaller screens */
    .stat-card {
        padding: 0.75rem !important;
    }
    
    .stat-card h6 {
        font-size: 0.875rem;
    }
}

@media (max-width: 767px) {
    .main-container {
        min-height: auto;
    }
    
    .three-column-grid {
        display: block;
        height: auto;
    }
    
    .left-column,
    .middle-column,
    .right-column {
        padding: 1rem;
        height: auto;
        min-height: auto;
    }
    
    .navbar-brand small {
        display: none;
    }
    
    footer .text-md-end {
        text-align: left !important;
        margin-top: 0.5rem;
    }
    
    .unified-input {
        min-height: 80px;
        max-height: 120px;
    }
    
    .file-drop-zone {
        min-height: 60px;
        padding: 0.75rem;
    }
}

/* Focus Visible */
:focus-visible {
    outline: 2px solid var(--cyber-blue);
    outline-offset: 2px;
}

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

.fade-in {
    animation: fadeIn var(--transition-base);
}

/* Utility Classes */
.opacity-75 { opacity: 0.75; }
.d-none { display: none !important; }
.d-flex { display: flex !important; }
.flex-column { flex-direction: column; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.text-center { text-align: center; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.me-1 { margin-right: 0.25rem; }
.me-2 { margin-right: 0.5rem; }
.p-3 { padding: 1rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }
.gap-2 { gap: 0.5rem; }
.g-2 { --bs-gutter-x: 0.5rem; --bs-gutter-y: 0.5rem; }
.g-3 { --bs-gutter-x: 1rem; --bs-gutter-y: 1rem; }
.row { display: flex; flex-wrap: wrap; margin-right: calc(var(--bs-gutter-x, 0) * -.5); margin-left: calc(var(--bs-gutter-x, 0) * -.5); }
.row > * { flex-shrink: 0; width: 100%; max-width: 100%; padding-right: calc(var(--bs-gutter-x, 0) * .5); padding-left: calc(var(--bs-gutter-x, 0) * .5); margin-top: var(--bs-gutter-y, 0); }
.col-6 { flex: 0 0 auto; width: 50%; }
.col-md-4 { flex: 0 0 auto; width: 33.33333333%; }
@media (max-width: 767px) { .col-md-4 { width: 50%; } }
.d-grid { display: grid; }
.h-100 { height: 100% !important; }
.cursor-pointer { cursor: pointer; }
.fs-5 { font-size: 1.25rem !important; }
.fw-bold { font-weight: 700 !important; }
.lead { font-size: 1.25rem; font-weight: 300; }

/* Results Cards */
.results-card {
    min-height: 400px;
}

/* Stat Cards for Results */
.stat-card {
    background: var(--glass-surface);
    border: 1px solid var(--subtle-border);
    transition: all var(--transition-base);
}

.stat-card:hover {
    background: var(--hover-state);
    border-color: var(--active-border);
}

.stat-card h6 {
    font-weight: 600;
    color: var(--text-light);
}

.stat-card small {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card i {
    opacity: 0.6;
}

/* Advanced Metrics Details */
details summary {
    cursor: pointer;
    user-select: none;
    outline: none;
}

details summary::-webkit-details-marker {
    display: none;
}

details summary::before {
    content: '▶';
    display: inline-block;
    margin-right: 0.5rem;
    transition: transform var(--transition-base);
}

details[open] summary::before {
    transform: rotate(90deg);
}

/* Comparison Section Styles */
.comparison-results {
    height: 100%;
}

.comparison-table-wrapper {
    overflow-x: auto;
    overflow-y: auto;
    max-height: calc(100vh - 300px);
}

.comparison-table-wrapper table {
    font-size: 0.875rem;
    border: none;
}

.comparison-table-wrapper .table {
    margin-bottom: 0;
}

.comparison-table-wrapper .table-dark {
    background: transparent;
    color: var(--text-light);
    border: none;
}

.comparison-table-wrapper .table-dark thead th {
    background: var(--dark-graphite);
    border-bottom: 1px solid var(--subtle-border);
    border-top: none;
    position: sticky;
    top: 0;
    z-index: 10;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.comparison-table-wrapper .table-dark tbody tr {
    border-bottom: 1px solid var(--subtle-border);
}

.comparison-table-wrapper .table-dark tbody tr:hover {
    background: var(--hover-state);
}

.comparison-table-wrapper .table-dark td,
.comparison-table-wrapper .table-dark th {
    border: none;
}

.table-row-best {
    background: rgba(40, 167, 69, 0.1);
}

.table-row-worst {
    background: rgba(220, 53, 69, 0.1);
}

/* Provider Badges */
.badge-provider {
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--glass-surface);
    border: 1px solid var(--subtle-border);
}

.badge-openai {
    color: var(--cyber-blue);
    border-color: var(--cyber-blue);
}

.badge-claude {
    color: var(--platinum-gold);
    border-color: var(--platinum-gold);
}

/* Price Insight Box */
.price-insight {
    background: var(--glass-surface);
    border: 1px solid var(--subtle-border);
}