/* ========================================
   LINQ Marbles - Dark Futuristic Design
   Inspired by Logo: Dark background, Blue/Purple/Orange accents
   ======================================== */

:root {
    /* Primary Colors from Logo */
    --color-bg-dark: #0a0a1a;
    --color-bg-card: #12122a;
    --color-bg-elevated: #1a1a3a;

    /* Accent Colors */
    --color-blue: #4a9eff;
    --color-blue-glow: rgba(74, 158, 255, 0.4);
    --color-purple: #8b5cf6;
    --color-purple-glow: rgba(139, 92, 246, 0.4);
    --color-orange: #f97316;
    --color-orange-glow: rgba(249, 115, 22, 0.4);
    --color-cyan: #22d3ee;
    --color-cyan-glow: rgba(34, 211, 238, 0.3);

    /* Text Colors */
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #4a9eff 0%, #8b5cf6 50%, #f97316 100%);
    --gradient-blue-purple: linear-gradient(135deg, #4a9eff 0%, #8b5cf6 100%);
    --gradient-purple-orange: linear-gradient(135deg, #8b5cf6 0%, #f97316 100%);
    --gradient-dark: linear-gradient(180deg, #0a0a1a 0%, #12122a 100%);
    --gradient-card: linear-gradient(145deg, #1a1a3a 0%, #12122a 100%);

    /* Shadows & Glows */
    --shadow-glow-blue: 0 0 30px rgba(74, 158, 255, 0.3);
    --shadow-glow-purple: 0 0 30px rgba(139, 92, 246, 0.3);
    --shadow-glow-orange: 0 0 20px rgba(249, 115, 22, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 1px rgba(255, 255, 255, 0.1) inset;

    /* Border */
    --border-subtle: 1px solid rgba(255, 255, 255, 0.08);
    --border-glow: 1px solid rgba(74, 158, 255, 0.3);

    /* Spacing & Radius */
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Base
   ======================================== */

html, body {
    background: var(--gradient-dark);
    min-height: 100vh;
    color: var(--color-text-primary);
}

body {
    background-image:
        radial-gradient(ellipse at 20% 20%, rgba(74, 158, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(249, 115, 22, 0.05) 0%, transparent 50%);
    background-attachment: fixed;
}

.valid.modified:not([type=checkbox]) {
    outline: 2px solid var(--color-cyan);
}

.invalid {
    outline: 2px solid var(--color-orange);
}

.validation-message {
    color: var(--color-orange);
}

#blazor-error-ui {
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    bottom: 0;
    box-shadow: 0 -4px 20px rgba(220, 38, 38, 0.4);
    display: none;
    left: 0;
    padding: 1rem 1.5rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    color: white;
    font-weight: 500;
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.blazor-error-boundary {
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    padding: 1.5rem;
    color: white;
    border-radius: var(--border-radius-md);
}

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

/* ========================================
   Loading
   ======================================== */

.loading-progress {
    position: absolute;
    display: block;
    width: 10rem;
    height: 10rem;
    inset: 30vh 0 auto 0;
    margin: 0 auto;
    filter: drop-shadow(0 0 20px rgba(74, 158, 255, 0.5));
}

.loading-progress circle {
    fill: none;
    stroke: rgba(74, 158, 255, 0.2);
    stroke-width: 0.5rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: url(#loading-gradient);
    stroke: var(--color-blue);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.1s ease-out;
    stroke-linecap: round;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-blue);
    inset: calc(30vh + 11rem) 0 auto 0;
    text-shadow: 0 0 10px var(--color-blue-glow);
}

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

code {
    color: var(--color-cyan);
    background: rgba(34, 211, 238, 0.1);
    padding: 0.2em 0.5em;
    border-radius: 4px;
    font-weight: 500;
    font-family: 'JetBrains Mono', monospace;
}

/* ========================================
   Main Card
   ======================================== */

.marbles-card {
    width: 100%;
    max-width: 950px;
    margin: 1.5rem auto;
    text-align: center;
    background: var(--gradient-card) !important;
    border-radius: var(--border-radius-xl) !important;
    box-shadow: var(--shadow-card);
    overflow: hidden;
    border: var(--border-subtle);
    animation: card-enter 0.6s ease-out;
    position: relative;
}

.marbles-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--border-radius-xl);
    padding: 1px;
    background: linear-gradient(135deg, rgba(74, 158, 255, 0.3) 0%, rgba(139, 92, 246, 0.2) 50%, rgba(249, 115, 22, 0.3) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

@keyframes card-enter {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.marbles-card > .mud-card-content {
    padding: 0 !important;
    background: transparent !important;
}

/* ========================================
   Section Headers
   ======================================== */

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.section-header.input-header {
    background: linear-gradient(90deg, rgba(74, 158, 255, 0.15) 0%, transparent 100%);
    color: var(--color-blue);
    border-left: 3px solid var(--color-blue);
}

.section-header.operator-header {
    background: linear-gradient(90deg, rgba(139, 92, 246, 0.15) 0%, transparent 100%);
    color: var(--color-purple);
    border-left: 3px solid var(--color-purple);
}

.section-header.output-header {
    background: linear-gradient(90deg, rgba(249, 115, 22, 0.15) 0%, transparent 100%);
    color: var(--color-orange);
    border-left: 3px solid var(--color-orange);
}

/* ========================================
   Input/Output Panels
   ======================================== */

.input-panel,
.output-panel {
    padding: 2rem 1.5rem;
    min-height: 100px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.input-panel {
    background: radial-gradient(ellipse at top, rgba(74, 158, 255, 0.05) 0%, transparent 70%);
}

.output-panel {
    background: radial-gradient(ellipse at bottom, rgba(249, 115, 22, 0.05) 0%, transparent 70%);
}

/* ========================================
   Operator Section
   ======================================== */

.operator-section {
    position: relative;
    background: var(--color-bg-dark);
    overflow: hidden;
}

.operator-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 10% 50%, rgba(74, 158, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 50%, rgba(249, 115, 22, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

.function {
    font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace !important;
    font-size: clamp(1rem, 2.5vw, 1.4rem) !important;
    font-weight: 500;
    color: var(--color-text-primary);
    padding: 1.5rem 2rem;
    margin: 0;
    position: relative;
    z-index: 1;
    line-height: 1.7;
    text-align: left;
    background: transparent;
    border: none;
    white-space: pre-wrap;
    word-break: break-word;
}

/* Syntax highlighting colors */
.function {
    text-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

/* ========================================
   Flow Indicator
   ======================================== */

.flow-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    background: transparent;
    position: relative;
}

.flow-indicator::before {
    content: '';
    position: absolute;
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-blue) 0%, var(--color-purple) 50%, var(--color-orange) 100%);
    opacity: 0.3;
}

.flow-indicator svg,
.flow-indicator .mud-icon-root {
    font-size: 1.5rem !important;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse-flow 2s ease-in-out infinite;
    filter: drop-shadow(0 0 8px var(--color-purple-glow));
}

@keyframes pulse-flow {
    0%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    50% {
        transform: translateY(4px);
        opacity: 1;
    }
}

/* ========================================
   Marble/Chip Enhancement
   ======================================== */

.mud-chip {
    transition: all var(--transition-medium) !important;
    font-weight: 600 !important;
    border: none !important;
}

.mud-chip:hover {
    transform: translateY(-3px) scale(1.08);
}

.mud-chip-size-large {
    height: 48px !important;
    font-size: 1.05rem !important;
    border-radius: 24px !important;
    padding: 0 20px !important;
}

.marble-chip {
    font-weight: 700 !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3), 0 0 20px var(--color-blue-glow) !important;
    transition: all var(--transition-medium) !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.marble-chip:hover {
    transform: translateY(-4px) scale(1.1) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 30px var(--color-purple-glow) !important;
}

/* Add button styling */
.add-marble-btn {
    border: 2px dashed rgba(74, 158, 255, 0.4) !important;
    background: rgba(74, 158, 255, 0.05) !important;
    color: var(--color-blue) !important;
}

.add-marble-btn:hover {
    border-color: var(--color-blue) !important;
    background: rgba(74, 158, 255, 0.15) !important;
    box-shadow: var(--shadow-glow-blue) !important;
}

/* ========================================
   Array Display
   ======================================== */

.array {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-md);
    border: var(--border-subtle);
    margin: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.array::before {
    content: '[';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-blue);
    text-shadow: 0 0 10px var(--color-blue-glow);
}

.array::after {
    content: ']';
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-blue);
    text-shadow: 0 0 10px var(--color-blue-glow);
}

/* ========================================
   Centered Content
   ======================================== */

.centered-content {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

/* ========================================
   Result Value
   ======================================== */

.result-display {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 2rem;
    background: rgba(139, 92, 246, 0.1);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(139, 92, 246, 0.3);
    min-width: 80px;
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.mud-typography-h4,
.mud-typography-h5 {
    font-weight: 700 !important;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   Error Display
   ======================================== */

.error-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    width: 100%;
}

.error-message-box {
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.3);
    border-radius: var(--border-radius-md);
    padding: 1rem 1.25rem;
    color: #fca5a5;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    text-align: left;
    width: 100%;
    max-width: 500px;
}

/* ========================================
   Navigation
   ======================================== */

.mud-drawer {
    background: var(--color-bg-card) !important;
    border-right: var(--border-subtle) !important;
}

.mud-nav-group .mud-nav-link {
    border-radius: var(--border-radius-sm);
    margin: 2px 8px;
    transition: all var(--transition-fast);
    color: var(--color-text-secondary) !important;
}

.mud-nav-group .mud-nav-link:hover {
    background: rgba(74, 158, 255, 0.1);
    color: var(--color-text-primary) !important;
}

.mud-nav-group .mud-nav-link.active {
    background: var(--gradient-blue-purple) !important;
    color: white !important;
    font-weight: 600;
    box-shadow: var(--shadow-glow-blue);
}

.nav-search-container {
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--border-radius-md);
    margin: 0.75rem;
    border: var(--border-subtle);
}

/* Category badges */
.category-icon {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    font-weight: 700;
    margin-right: 8px;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.cat-aggregation { background: var(--gradient-blue-purple); box-shadow: var(--shadow-glow-blue); }
.cat-concatenation { background: linear-gradient(135deg, #22d3ee 0%, #06b6d4 100%); }
.cat-conversion { background: linear-gradient(135deg, #f97316 0%, #ea580c 100%); box-shadow: var(--shadow-glow-orange); }
.cat-element { background: linear-gradient(135deg, #4a9eff 0%, #2563eb 100%); }
.cat-filtering { background: linear-gradient(135deg, #f472b6 0%, #ec4899 100%); }
.cat-generation { background: linear-gradient(135deg, #a78bfa 0%, #8b5cf6 100%); box-shadow: var(--shadow-glow-purple); }
.cat-grouping { background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%); }
.cat-merging { background: linear-gradient(135deg, #34d399 0%, #10b981 100%); }
.cat-order { background: linear-gradient(135deg, #fb7185 0%, #f43f5e 100%); }
.cat-partitioning { background: linear-gradient(135deg, #94a3b8 0%, #64748b 100%); }
.cat-projection { background: linear-gradient(135deg, #c084fc 0%, #a855f7 100%); }
.cat-quantification { background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%); }
.cat-sequence { background: linear-gradient(135deg, #2dd4bf 0%, #14b8a6 100%); }
.cat-set { background: var(--gradient-purple-orange); }

/* ========================================
   App Bar
   ======================================== */

.app-title {
    font-weight: 700 !important;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.app-bar-custom {
    background: var(--color-bg-card) !important;
    border-bottom: var(--border-subtle) !important;
    backdrop-filter: blur(10px);
}

.github-btn {
    border-radius: var(--border-radius-sm) !important;
    text-transform: none !important;
    font-weight: 500 !important;
    background: rgba(255, 255, 255, 0.1) !important;
    border: var(--border-subtle) !important;
}

.github-btn:hover {
    background: rgba(255, 255, 255, 0.15) !important;
    box-shadow: var(--shadow-glow-blue) !important;
}

/* ========================================
   Drawer Custom
   ======================================== */

.drawer-custom {
    background: var(--color-bg-card) !important;
    border-right: var(--border-subtle) !important;
}

.drawer-header-custom {
    background: linear-gradient(135deg, rgba(74, 158, 255, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
    border-bottom: var(--border-subtle);
    display: flex;
    align-items: center;
}

/* ========================================
   Main Content
   ======================================== */

.main-content-custom {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-top: 1rem;
    background: transparent !important;
}

.page-wrapper {
    flex-grow: 1;
    padding: 0 1rem;
}

/* ========================================
   Footer
   ======================================== */

footer {
    padding: 1.5rem;
    text-align: center;
    background: rgba(0, 0, 0, 0.3);
    margin-top: auto;
    border-top: var(--border-subtle);
}

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

footer a:hover {
    color: var(--color-purple);
    text-shadow: 0 0 10px var(--color-purple-glow);
}

.footer-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    flex-wrap: wrap;
    color: var(--color-text-muted);
}

/* ========================================
   Navigation Menu Custom
   ======================================== */

.nav-menu-custom {
    padding: 0.5rem;
}

.nav-menu-custom .mud-nav-group {
    margin-bottom: 0.25rem;
}

.nav-menu-custom .mud-nav-group-title {
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

.nav-menu-custom .mud-navlink {
    border-radius: var(--border-radius-sm);
    margin: 2px 0;
    transition: all var(--transition-fast);
}

.nav-menu-custom .mud-navlink:hover {
    background: rgba(74, 158, 255, 0.1);
}

.nav-menu-custom .mud-navlink-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ========================================
   Popover
   ======================================== */

.mud-popover {
    border-radius: var(--border-radius-md) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), var(--shadow-glow-blue) !important;
    border: var(--border-glow);
    padding: 0.5rem;
    background: var(--color-bg-elevated) !important;
}

.add-marble-popover {
    border-radius: var(--border-radius-md) !important;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), var(--shadow-glow-blue) !important;
    border: var(--border-glow);
    overflow: visible !important;
    background: var(--color-bg-elevated) !important;
}

/* ========================================
   Boolean Result
   ======================================== */

.bool-true {
    color: #34d399 !important;
    text-shadow: 0 0 10px rgba(52, 211, 153, 0.5);
}

.bool-false {
    color: #fb7185 !important;
    text-shadow: 0 0 10px rgba(251, 113, 133, 0.5);
}

/* ========================================
   MudBlazor Overrides for Dark Theme
   ======================================== */

.mud-input-control {
    color: var(--color-text-primary) !important;
}

.mud-input {
    color: var(--color-text-primary) !important;
}

.mud-input-outlined .mud-input-outlined-border {
    border-color: rgba(255, 255, 255, 0.15) !important;
}

.mud-input-outlined:hover .mud-input-outlined-border {
    border-color: var(--color-blue) !important;
}

.mud-input-label {
    color: var(--color-text-secondary) !important;
}

.mud-typography {
    color: var(--color-text-primary);
}

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

/* ========================================
   Scrollbar Styling
   ======================================== */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-blue) 0%, var(--color-purple) 100%);
    border-radius: 5px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gradient-primary);
    background-clip: padding-box;
}

/* ========================================
   Selection
   ======================================== */

::selection {
    background: rgba(139, 92, 246, 0.4);
    color: white;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    .marbles-card {
        margin: 0.75rem;
        border-radius: var(--border-radius-lg) !important;
    }

    .input-panel,
    .output-panel {
        padding: 1.5rem 1rem;
    }

    .function {
        padding: 1rem 1.25rem;
        font-size: 0.9rem !important;
    }

    .section-header {
        font-size: 0.65rem;
        padding: 0.625rem 1rem;
    }

    .mud-chip-size-large {
        height: 42px !important;
        font-size: 0.95rem !important;
        padding: 0 16px !important;
    }
}

/* ========================================
   Animations
   ======================================== */

@keyframes glow-pulse {
    0%, 100% {
        box-shadow: 0 0 20px var(--color-blue-glow);
    }
    50% {
        box-shadow: 0 0 40px var(--color-purple-glow);
    }
}

@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}