/* =============================================
   ArgueThis — Global Styles
   Modern, clean design system with light/dark mode
   ============================================= */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Primary palette — refined indigo/violet */
    --at-primary: #6366f1;
    --at-primary-light: #818cf8;
    --at-primary-dark: #4f46e5;
    --at-primary-50: #eef2ff;
    --at-primary-100: #e0e7ff;
    --at-primary-900: #312e81;

    /* Accent — warm amber for CTAs */
    --at-accent: #f59e0b;
    --at-accent-light: #fbbf24;

    /* Side colors */
    --at-side-for: #6366f1;
    --at-side-for-light: #eef2ff;
    --at-side-for-bg: linear-gradient(135deg, #6366f1, #818cf8);
    --at-side-against: #ec4899;
    --at-side-against-light: #fdf2f8;
    --at-side-against-bg: linear-gradient(135deg, #ec4899, #f472b6);

    /* Neutrals — Light Mode */
    --at-bg: #f8fafc;
    --at-bg-alt: #f1f5f9;
    --at-surface: #ffffff;
    --at-surface-hover: #f8fafc;
    --at-surface-raised: #ffffff;
    --at-border: #e2e8f0;
    --at-border-light: #f1f5f9;
    --at-text: #0f172a;
    --at-text-secondary: #475569;
    --at-text-muted: #94a3b8;

    /* Navbar */
    --at-navbar-bg: rgba(255, 255, 255, 0.85);

    /* Semantic */
    --at-success: #10b981;
    --at-success-light: #ecfdf5;
    --at-danger: #ef4444;
    --at-danger-light: #fef2f2;
    --at-danger-text: #991b1b;
    --at-danger-text-secondary: #b91c1c;
    --at-warning: #f59e0b;
    --at-warning-light: #fffbeb;
    --at-info: #3b82f6;
    --at-info-light: #eff6ff;

    /* Shadows */
    --at-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --at-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
    --at-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --at-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --at-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --at-shadow-glow: 0 0 20px rgba(99, 102, 241, 0.1);

    /* Radii */
    --at-radius-sm: 0.375rem;
    --at-radius-md: 0.5rem;
    --at-radius-lg: 0.75rem;
    --at-radius-xl: 1rem;
    --at-radius-2xl: 1.25rem;

    /* Transitions */
    --at-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --at-transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --at-transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Gradient hero background */
    --at-hero-bg: linear-gradient(135deg, #312e81 0%, #4f46e5 40%, #6366f1 70%, #818cf8 100%);

    /* Glass */
    --at-glass-bg: rgba(255, 255, 255, 0.8);

    /* Color scheme hint for native elements */
    color-scheme: light;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
    --at-primary: #818cf8;
    --at-primary-light: #a5b4fc;
    --at-primary-dark: #6366f1;
    --at-primary-50: rgba(99, 102, 241, 0.15);
    --at-primary-100: rgba(99, 102, 241, 0.25);
    --at-primary-900: #c7d2fe;

    --at-accent: #fbbf24;
    --at-accent-light: #fde68a;

    --at-side-for: #a5b4fc;
    --at-side-for-light: rgba(99, 102, 241, 0.1);
    --at-side-for-bg: linear-gradient(135deg, #6366f1, #818cf8);
    --at-side-against: #f9a8d4;
    --at-side-against-light: rgba(236, 72, 153, 0.1);
    --at-side-against-bg: linear-gradient(135deg, #ec4899, #f472b6);

    --at-bg: #0c0e16;
    --at-bg-alt: #12141e;
    --at-surface: #181b28;
    --at-surface-hover: #1e2133;
    --at-surface-raised: #232740;
    --at-border: #282d44;
    --at-border-light: #1c1f30;
    --at-text: #ebedf3;
    --at-text-secondary: #a8adc4;
    --at-text-muted: #5c6280;

    --at-navbar-bg: rgba(12, 14, 22, 0.88);

    --at-success: #34d399;
    --at-success-light: rgba(16, 185, 129, 0.12);
    --at-danger: #f87171;
    --at-danger-light: rgba(239, 68, 68, 0.12);
    --at-danger-text: #fca5a5;
    --at-danger-text-secondary: #f87171;
    --at-warning: #fbbf24;
    --at-warning-light: rgba(245, 158, 11, 0.12);
    --at-info: #60a5fa;
    --at-info-light: rgba(59, 130, 246, 0.12);

    --at-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.4);
    --at-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.4);
    --at-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
    --at-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.6), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
    --at-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
    --at-shadow-glow: 0 0 24px rgba(99, 102, 241, 0.12);

    --at-hero-bg: linear-gradient(135deg, #130e28 0%, #241a5c 40%, #312e81 70%, #3730a3 100%);

    --at-glass-bg: rgba(24, 27, 40, 0.85);

    color-scheme: dark;
}

/* --- Bootstrap Dark Mode Overrides --- */
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--at-bg-alt);
    border-color: var(--at-border);
    color: var(--at-text);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    background-color: var(--at-bg-alt);
    border-color: var(--at-primary-light);
    color: var(--at-text);
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.2);
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--at-text-muted);
}

[data-theme="dark"] .form-range::-webkit-slider-runnable-track {
    background: var(--at-border);
}

[data-theme="dark"] .form-range::-moz-range-track {
    background: var(--at-border);
}

[data-theme="dark"] .spinner-border {
    border-color: var(--at-primary-50);
    border-right-color: var(--at-primary);
}

[data-theme="dark"] .text-muted {
    color: var(--at-text-muted) !important;
}

[data-theme="dark"] .text-primary {
    color: var(--at-primary) !important;
}

[data-theme="dark"] .text-danger {
    color: var(--at-danger) !important;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

body {
    background-color: var(--at-bg);
    color: var(--at-text);
    line-height: 1.6;
    font-size: 0.9375rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--at-text);
}

h1 { font-size: 2.25rem; letter-spacing: -0.025em; }
h2 { font-size: 1.75rem; letter-spacing: -0.02em; }
h3 { font-size: 1.375rem; letter-spacing: -0.015em; }
h4 { font-size: 1.125rem; }

p {
    color: var(--at-text-secondary);
    line-height: 1.7;
}

a {
    color: var(--at-primary);
    text-decoration: none;
    transition: color var(--at-transition-fast);
}

a:hover {
    color: var(--at-primary-dark);
}

/* --- App Loading Screen --- */
.app-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--at-hero-bg);
}

.app-loading-inner {
    text-align: center;
}

.app-loading-logo {
    margin-bottom: 1rem;
    animation: pulse-glow 2s ease-in-out infinite;
}

.app-loading-logo img {
    width: 4rem;
    height: 4rem;
    object-fit: contain;
}

.app-loading-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

/* --- Card System --- */
.card {
    background: var(--at-surface);
    border: 1px solid var(--at-border);
    border-radius: var(--at-radius-xl);
    box-shadow: var(--at-shadow-sm);
    transition: box-shadow var(--at-transition-base), transform var(--at-transition-base);
}

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

.card-header {
    font-weight: 600;
    border-bottom: 1px solid var(--at-border);
    background: transparent;
    padding: 1rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    border-top: 1px solid var(--at-border);
    background: var(--at-bg-alt);
    padding: 1rem 1.5rem;
}

/* --- Buttons --- */
.btn {
    font-weight: 500;
    border-radius: var(--at-radius-md);
    padding: 0.5rem 1.25rem;
    transition: all var(--at-transition-fast);
    font-size: 0.875rem;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--at-primary);
    border-color: var(--at-primary);
    color: #fff;
    box-shadow: 0 1px 2px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: var(--at-primary-dark);
    border-color: var(--at-primary-dark);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(99, 102, 241, 0.3);
}

.btn-primary:disabled {
    background: var(--at-text-muted);
    border-color: var(--at-text-muted);
    box-shadow: none;
    transform: none;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
    border-radius: var(--at-radius-lg);
    font-weight: 600;
}

.btn-outline-secondary {
    color: var(--at-text-secondary);
    border-color: var(--at-border);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--at-bg-alt);
    border-color: var(--at-text-muted);
    color: var(--at-text);
}

/* --- Forms --- */
.form-label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--at-text);
    margin-bottom: 0.375rem;
}

.form-control, .form-select {
    border: 1.5px solid var(--at-border);
    border-radius: var(--at-radius-md);
    padding: 0.625rem 0.875rem;
    font-size: 0.9375rem;
    color: var(--at-text);
    background-color: var(--at-surface);
    transition: border-color var(--at-transition-fast), box-shadow var(--at-transition-fast);
}

.form-control:focus, .form-select:focus {
    border-color: var(--at-primary-light);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
    outline: none;
}

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

.form-text {
    font-size: 0.8125rem;
    color: var(--at-text-muted);
    margin-top: 0.25rem;
}

.form-range {
    accent-color: var(--at-primary);
}

.form-range::-webkit-slider-thumb {
    background: var(--at-primary);
}

.form-range::-moz-range-thumb {
    background: var(--at-primary);
}

textarea.form-control {
    resize: vertical;
    min-height: 5rem;
}

.valid.modified:not([type=checkbox]) {
    outline: none;
    border-color: var(--at-success);
}

.invalid {
    outline: none;
    border-color: var(--at-danger);
}

.validation-message {
    color: var(--at-danger);
    font-size: 0.8125rem;
    margin-top: 0.25rem;
}

/* --- Alerts --- */
.alert {
    border-radius: var(--at-radius-lg);
    border: none;
    font-size: 0.9375rem;
    padding: 1rem 1.25rem;
}

.alert-danger {
    background: var(--at-danger-light);
    color: var(--at-danger-text);
    border-left: 4px solid var(--at-danger);
}

.alert-info {
    background: var(--at-info-light);
    color: var(--at-info);
    border-left: 4px solid var(--at-info);
}

.alert-success {
    background: var(--at-success-light);
    color: var(--at-success);
    border-left: 4px solid var(--at-success);
}

.alert-warning {
    background: var(--at-warning-light);
    color: var(--at-warning);
    border-left: 4px solid var(--at-warning);
}

/* --- Accordion --- */
.accordion {
    border-radius: var(--at-radius-xl);
    overflow: hidden;
}

.accordion-item {
    border: 1px solid var(--at-border);
}

.accordion-button {
    font-weight: 600;
    color: var(--at-text);
    background: var(--at-surface);
    padding: 1rem 1.25rem;
}

.accordion-button:not(.collapsed) {
    background: var(--at-primary-50);
    color: var(--at-primary-dark);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
    border-color: var(--at-primary-light);
}

/* --- Badge --- */
.badge {
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    letter-spacing: 0.02em;
}

/* --- Utilities --- */
.text-gradient {
    background: var(--at-hero-bg);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass {
    background: var(--at-glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.fade-in-up {
    animation: fadeInUp 0.5s ease-out;
}

.slide-in-left {
    animation: slideInLeft 0.4s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.4s ease-out;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* --- Theme Transition --- */
body,
body .app-navbar,
body .app-footer,
body .debate-form-card,
body .message-bubble,
body .position-card,
body .status-card,
body .bottom-cta {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* --- Loading Progress (WASM boot) --- */
.loading-progress {
    display: block;
    width: 5rem;
    height: 5rem;
    margin: 0 auto;
}

.loading-progress circle {
    fill: none;
    stroke: rgba(255, 255, 255, 0.2);
    stroke-width: 0.5rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: white;
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    text-align: center;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.loading-progress-text:after {
    content: var(--blazor-load-percentage-text, "Loading");
}

/* --- Blazor Error UI --- */
#blazor-error-ui {
    background: var(--at-danger-light);
    border-top: 3px solid var(--at-danger);
    bottom: 0;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.75rem 1.5rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    font-size: 0.875rem;
    color: var(--at-danger-text);
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

.blazor-error-boundary {
    background: var(--at-danger);
    padding: 1rem 1.5rem;
    color: white;
    border-radius: var(--at-radius-md);
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

/* --- Focus styles --- */
h1:focus { outline: none; }

.btn:focus-visible, .form-control:focus-visible, .form-select:focus-visible,
.form-check-input:focus-visible, .btn-link.nav-link:focus-visible {
    box-shadow: 0 0 0 2px var(--at-surface), 0 0 0 4px var(--at-primary-light);
    outline: none;
}

/* --- Code --- */
code {
    font-family: 'JetBrains Mono', monospace;
    color: var(--at-primary-dark);
    background: var(--at-primary-50);
    padding: 0.125rem 0.375rem;
    border-radius: var(--at-radius-sm);
    font-size: 0.875em;
}

/* --- Debate Content: Tables --- */
.message-content table,
.position-statement table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0;
    font-size: 0.875rem;
    border-radius: var(--at-radius-md);
    overflow: hidden;
}

.message-content thead,
.position-statement thead {
    background: var(--at-bg-alt);
}

.message-content th,
.position-statement th {
    padding: 0.5rem 0.75rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--at-text);
    border-bottom: 2px solid var(--at-border);
    white-space: nowrap;
}

.message-content td,
.position-statement td {
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--at-border-light);
    color: var(--at-text-secondary);
    vertical-align: top;
}

.message-content tbody tr:last-child td,
.position-statement tbody tr:last-child td {
    border-bottom: none;
}

.message-content tbody tr:hover,
.position-statement tbody tr:hover {
    background: var(--at-surface-hover);
}

/* --- Debate Content: Links / Citations --- */
.message-content a,
.position-statement a {
    color: var(--at-primary);
    text-decoration: underline;
    text-decoration-color: var(--at-primary-100);
    text-underline-offset: 2px;
    transition: color 150ms, text-decoration-color 150ms;
    font-weight: 500;
}

.message-content a:hover,
.position-statement a:hover {
    color: var(--at-primary-dark);
    text-decoration-color: var(--at-primary-dark);
}

.message-content a::after,
.position-statement a::after {
    content: "\F1C5";
    font-family: "bootstrap-icons";
    font-size: 0.625em;
    margin-left: 0.2em;
    vertical-align: super;
    opacity: 0.5;
}

/* --- Debate Content: Horizontal Rules --- */
.message-content hr,
.position-statement hr {
    border: none;
    border-top: 1px solid var(--at-border);
    margin: 1rem 0;
}

/* --- Debate Content: Strikethrough --- */
.message-content del,
.position-statement del {
    text-decoration: line-through;
    opacity: 0.6;
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--at-text-muted);
    border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--at-text-secondary);
}

/* --- Responsive --- */
@media (max-width: 767.98px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.375rem; }
    h3 { font-size: 1.125rem; }

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