/* INAPTIC V102 — Premium Design System (Revamped)
   Copyright (c) 2026 INAPTIC. Proprietary.
   Harmonized & Polished Styling for Enterprise Grade UX */

/* ═══════════════════════════════════════════════════════════════
   Google Font Imports (Outfit for headings, Inter for body UI)
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ═══════════════════════════════════════════════════════════════
   CSS Variables — Design Tokens
   ═══════════════════════════════════════════════════════════════ */

:root {
    /* Premium Color Palette - Neutral Slate & Deep Blue */
    --bg-void: #070b11;          /* Deepest backdrop space */
    --bg-primary: #0e1320;       /* Sidebar & Base workspace */
    --bg-secondary: #121829;     /* Chat message area & Modals */
    --bg-tertiary: #172035;      /* Header, selected items, panel backgrounds */
    --bg-hover: #1e2942;         /* Hover state background */
    --bg-active: #263554;        /* Pressed/Active state background */
    --bg-input: #0b0f1a;         /* Textarea and inputs background */
    --bg-glass: rgba(14, 19, 32, 0.75);
    --bg-glass-hover: rgba(22, 30, 48, 0.85);

    /* Subtle accents & glows */
    --accent: #3b82f6;           /* Electric cobalt blue */
    --accent-hover: #60a5fa;
    --accent-dim: rgba(59, 130, 246, 0.08);
    --accent-glow: rgba(59, 130, 246, 0.15);
    --accent-strong: rgba(59, 130, 246, 0.4);

    --purple: #8b5cf6;           /* Hyper-violet */
    --purple-dim: rgba(139, 92, 246, 0.08);
    --purple-glow: rgba(139, 92, 246, 0.15);
    --purple-strong: rgba(139, 92, 246, 0.4);

    --accent2: #06b6d4;          /* Cyber cyan */
    --accent2-dim: rgba(6, 182, 212, 0.06);
    --accent2-glow: rgba(6, 182, 212, 0.15);
    --mesh-rgb: 59, 130, 246;
    --mesh-line-rgb: 139, 92, 246;

    /* Text */
    --text-primary: #f1f5f9;     /* Slate-50 */
    --text-secondary: #94a3b8;   /* Slate-400 */
    --text-dim: #64748b;         /* Slate-500 */
    --text-accent: #60a5fa;

    /* Borders */
    --border: rgba(255, 255, 255, 0.04);
    --border-hover: rgba(255, 255, 255, 0.08);
    --border-focus: var(--accent);
    --border-glass: rgba(255, 255, 255, 0.06);
    --border-glow: rgba(59, 130, 246, 0.25);

    /* Status indicators */
    --success: #10b981;          /* Emerald-500 */
    --success-dim: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;          /* Amber-500 */
    --warning-dim: rgba(245, 158, 11, 0.1);
    --error: #ef4444;            /* Red-500 */
    --error-dim: rgba(239, 68, 68, 0.1);
    --info: #3b82f6;

    /* Spacing System */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
    --space-xxl: 36px;

    /* Structural dimensions */
    --sidebar-width: 280px;
    --topbar-height: 64px;       /* Increased from 56px for visual breathing room */
    --panel-width: 400px;        /* Increased from 380px for better details display */
    --input-height: 120px;

    /* Typography */
    --font-heading: 'Outfit', 'Inter', -apple-system, sans-serif;
    --font-sans: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-size-xs: 12px;
    --font-size-sm: 13px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 20px;
    --font-size-xxl: 30px;

    /* Rounding constants */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows & Glows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 8px 30px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 50px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 20px var(--accent-glow);
    --shadow-glow-strong: 0 0 40px var(--accent-strong);
    --shadow-purple-glow: 0 0 20px var(--purple-glow);

    /* Easing Functions */
    --transition-fast: 120ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-normal: 250ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

[data-theme="light"] {
    --bg-void: #f3f4f6;          /* Cool gray 100 */
    --bg-primary: #f9fafb;       /* Cool gray 50 */
    --bg-secondary: #ffffff;
    --bg-tertiary: #e5e7eb;      /* Cool gray 200 */
    --bg-hover: #f3f4f6;
    --bg-active: #e5e7eb;
    --bg-input: #f9fafb;
    --bg-glass: rgba(255, 255, 255, 0.75);
    --bg-glass-hover: rgba(255, 255, 255, 0.9);

    /* Accents */
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-dim: rgba(37, 99, 235, 0.06);
    --accent-glow: rgba(37, 99, 235, 0.12);
    --accent-strong: rgba(37, 99, 235, 0.25);

    --purple: #7c3aed;
    --purple-dim: rgba(124, 58, 237, 0.06);
    --purple-glow: rgba(124, 58, 237, 0.12);

    --accent2: #0891b2;
    --accent2-dim: rgba(8, 145, 178, 0.05);
    --accent2-glow: rgba(8, 145, 178, 0.12);
    --mesh-rgb: 37, 99, 235;
    --mesh-line-rgb: 99, 102, 241;

    --text-primary: #0f172a;     /* Slate-900 */
    --text-secondary: #475569;   /* Slate-600 */
    --text-dim: #64748b;         /* Slate-500 */
    --text-accent: #2563eb;

    --border: rgba(15, 23, 42, 0.06);
    --border-hover: rgba(15, 23, 42, 0.12);
    --border-glass: rgba(15, 23, 42, 0.08);
    --border-glow: rgba(37, 99, 235, 0.15);

    --success: #059669;          /* Emerald-600 */
    --success-dim: rgba(5, 150, 105, 0.08);
    --warning: #d97706;          /* Amber-600 */
    --warning-dim: rgba(217, 119, 6, 0.08);
    --error: #dc2626;            /* Red-600 */
    --error-dim: rgba(220, 38, 38, 0.08);

    --shadow-sm: 0 1px 2px rgba(15,23,42,0.04);
    --shadow-md: 0 8px 24px rgba(15,23,42,0.06);
    --shadow-lg: 0 20px 40px rgba(15,23,42,0.1);
}

/* ═══════════════════════════════════════════════════════════════
   Reset & Base Typography Tuning
   ═══════════════════════════════════════════════════════════════ */

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

html, body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font-sans);
    font-size: var(--font-size-md);
    color: var(--text-primary);
    background: var(--bg-void);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    letter-spacing: -0.011em;
}

::selection {
    background: var(--accent-dim);
    color: var(--text-accent);
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.12); }
[data-theme="light"] ::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.08); }
[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: rgba(0, 0, 0, 0.16); }

/* ═══════════════════════════════════════════════════════════════
   Animated Background Canvas
   ═══════════════════════════════════════════════════════════════ */

#bg-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    z-index: 0;
    pointer-events: none;
    opacity: 0.25;
}

/* ═══════════════════════════════════════════════════════════════
   Entry Shell (Login & Authenticate Panel)
   ═══════════════════════════════════════════════════════════════ */

.entry-shell {
    position: fixed;
    inset: 0;
    z-index: 30;
    display: grid;
    place-items: center;
    padding: clamp(24px, 5vw, 64px);
    background: radial-gradient(circle at center, transparent 0%, rgba(7, 11, 17, 0.7) 100%);
}

.entry-shell.hidden {
    display: none !important;
}

.entry-stage {
    width: min(1200px, 100%);
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(380px, 440px);
    align-items: center;
    gap: clamp(32px, 5vw, 80px);
}

.entry-story {
    max-width: 660px;
}

.entry-kicker,
.entry-panel .eyebrow {
    font-family: var(--font-sans);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.24em;
    color: var(--accent);
    font-weight: 700;
}

.entry-story h1 {
    font-family: var(--font-heading);
    margin-top: var(--space-md);
    font-size: clamp(52px, 8.5vw, 96px);
    line-height: 0.9;
    letter-spacing: -0.05em;
    font-weight: 900;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 50%, var(--purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.entry-lead {
    max-width: 32rem;
    margin-top: var(--space-xl);
    font-size: clamp(15px, 1.8vw, 18px);
    line-height: 1.6;
    color: var(--text-secondary);
    font-weight: 400;
}

.entry-proof-list {
    display: grid;
    gap: var(--space-sm);
    margin-top: var(--space-xxl);
}

.entry-proof-item {
    display: grid;
    gap: var(--space-xs);
    padding: var(--space-lg) 0;
    border-top: 1px solid var(--border);
    transition: transform var(--transition-normal);
}

.entry-proof-item:hover {
    transform: translateX(6px);
}

.entry-proof-title {
    font-family: var(--font-heading);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent-hover);
}

.entry-proof-copy {
    max-width: 36rem;
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    line-height: 1.5;
}

.entry-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(28px) saturate(1.5);
    -webkit-backdrop-filter: blur(28px) saturate(1.5);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-xl);
    padding: clamp(24px, 4vw, 40px);
    box-shadow: var(--shadow-lg), var(--shadow-glow), inset 0 1px 0 rgba(255,255,255,0.03);
    transition: box-shadow var(--transition-slow), border-color var(--transition-slow);
}

.entry-panel:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-lg), var(--shadow-glow-strong), inset 0 1px 0 rgba(255,255,255,0.05);
}

.entry-panel h2 {
    font-family: var(--font-heading);
    margin-top: var(--space-md);
    font-size: clamp(26px, 3.5vw, 36px);
    line-height: 1.05;
    letter-spacing: -0.03em;
    font-weight: 800;
}

.entry-panel-copy {
    margin-top: var(--space-md);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--text-secondary);
}

.entry-form {
    display: grid;
    gap: var(--space-sm);
    margin-top: var(--space-xl);
}

.entry-form label {
    font-family: var(--font-sans);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.entry-form input {
    width: 100%;
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 15px;
    font-family: var(--font-mono);
    outline: none;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.entry-form input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim), var(--shadow-glow);
    transform: translateY(-1px);
}

.entry-theme-switcher {
    display: inline-flex;
    gap: 4px;
    margin-top: var(--space-lg);
    padding: 4px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
}

.theme-btn {
    border: none;
    background: transparent;
    color: var(--text-dim);
    font-size: 11px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
}

.theme-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.theme-btn.active {
    color: white;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    box-shadow: var(--shadow-glow);
}

.entry-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.entry-badge {
    display: inline-flex;
    align-items: center;
    min-height: 30px;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 11px;
    font-family: var(--font-mono);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.entry-badge:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.entry-status {
    min-height: 20px;
    margin-top: var(--space-md);
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-dim);
}

.entry-status.is-error { color: var(--error); font-weight: 500; }
.entry-status.is-success { color: var(--success); font-weight: 500; }

/* ═══════════════════════════════════════════════════════════════
   App Container & Navigation Topbar
   ═══════════════════════════════════════════════════════════════ */

#app {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

#app.app-hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.99);
}

#topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topbar-height);
    padding: 0 var(--space-xl);
    background: var(--bg-glass);
    backdrop-filter: blur(24px) saturate(1.5);
    -webkit-backdrop-filter: blur(24px) saturate(1.5);
    border-bottom: 1px solid var(--border-glass);
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.topbar-left, .topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.topbar-center {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

/* Logo Styling */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    cursor: default;
}

.logo-diamond {
    width: 20px; height: 20px;
    position: relative;
    transform: rotate(45deg);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.logo:hover .logo-diamond {
    transform: rotate(225deg);
}

.logo-diamond-inner {
    width: 100%; height: 100%;
    background: linear-gradient(135deg, var(--accent), var(--purple), var(--accent2));
    background-size: 200% 200%;
    border-radius: 4px;
    animation: logo-pulse 3s ease-in-out infinite, logo-gradient-shift 6s ease-in-out infinite;
    box-shadow: 0 0 10px var(--accent-glow);
}

@keyframes logo-pulse {
    0%, 100% { box-shadow: 0 0 6px var(--accent-glow); }
    50% { box-shadow: 0 0 16px var(--accent-strong), 0 0 32px var(--purple-glow); }
}

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

.logo-text {
    font-family: var(--font-heading);
    font-size: 17px;
    font-weight: 900;
    letter-spacing: 0.08em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 60%, var(--purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-badge {
    font-size: 9px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--accent-dim), var(--purple-dim));
    color: var(--accent-hover);
    font-weight: 700;
    letter-spacing: 0.08em;
    border: 1px solid var(--border-glow);
}

/* GPU Status Dashboard Widget */
.gpu-status-widget {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    cursor: default;
    white-space: nowrap;
}

.gpu-status-widget:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.gpu-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
    position: relative;
}

.gpu-dot-online {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
    animation: gpu-pulse 2s ease-in-out infinite;
}

.gpu-dot-offline {
    background: var(--error);
    box-shadow: 0 0 8px var(--error);
    animation: gpu-pulse 2s ease-in-out infinite;
}

.gpu-dot-pending {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning);
    animation: gpu-pulse 1s ease-in-out infinite;
}

@keyframes gpu-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.gpu-label { font-weight: 600; letter-spacing: 0.02em; }

/* Mode Switcher */
.mode-switcher {
    display: flex;
    position: relative;
    background: var(--bg-primary);
    border-radius: var(--radius-full);
    padding: 3px;
    border: 1px solid var(--border);
}

.mode-btn {
    padding: 6px 16px;
    border: none;
    background: transparent;
    color: var(--text-dim);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: color var(--transition-fast);
    position: relative;
    z-index: 1;
    letter-spacing: 0.01em;
}

.mode-btn.active {
    color: var(--text-primary);
}

.mode-indicator {
    position: absolute;
    top: 3px;
    height: calc(100% - 6px);
    width: 50%;
    background: linear-gradient(135deg, var(--bg-hover), var(--bg-active));
    border-radius: var(--radius-full);
    transition: transform var(--transition-spring);
    z-index: 0;
    border: 1px solid var(--border-glow);
}

.mode-switcher[data-active="agent"] .mode-indicator {
    transform: translateX(100%);
}

#session-info {
    display: flex;
    gap: var(--space-xs);
}

.badge {
    font-size: 11px;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-weight: 500;
    font-family: var(--font-mono);
    border: 1px solid var(--border);
    letter-spacing: 0.01em;
}

.badge-glow {
    background: linear-gradient(135deg, var(--accent-dim), var(--purple-dim));
    color: var(--accent-hover);
    box-shadow: 0 0 10px var(--accent-glow);
    border: 1px solid var(--border-glow);
}

.badge-dim { color: var(--text-dim); }

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* ═══════════════════════════════════════════════════════════════
   Main Layout & Panels Harmonization
   ═══════════════════════════════════════════════════════════════ */

#main-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar Panel */
#sidebar {
    width: var(--sidebar-width);
    background: var(--bg-primary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    transition: width var(--transition-slow), opacity var(--transition-slow), transform var(--transition-slow);
}

#sidebar.sidebar-closed {
    width: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateX(-15px);
}

.sidebar-section {
    padding: var(--space-xl) var(--space-lg);
    border-bottom: 1px solid var(--border);
}

.sidebar-title {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--text-dim);
    margin-bottom: var(--space-md);
}

.session-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.session-item {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border: 1px solid transparent;
}

.session-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: translateX(4px);
    border-color: var(--border);
}

.session-item.active {
    background: linear-gradient(135deg, var(--bg-hover), var(--bg-active));
    color: var(--text-primary);
    font-weight: 600;
    border: 1px solid var(--border-glow);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.session-item.active::before {
    content: '';
    position: absolute;
    left: 0; top: 15%; height: 70%;
    width: 3px;
    background: linear-gradient(to bottom, var(--accent), var(--purple));
    border-radius: 0 4px 4px 0;
}

.tool-status {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.tool-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--text-dim);
    padding: 6px 0;
    transition: all var(--transition-fast);
}

.tool-item:hover {
    color: var(--text-secondary);
    transform: translateX(4px);
}

.tool-item.active { color: var(--text-secondary); }

.tool-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--text-dim);
    transition: all var(--transition-fast);
}

.tool-item.active .tool-dot {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.agent-metrics {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 0;
    transition: all var(--transition-fast);
}

.metric-row:hover {
    transform: translateX(4px);
}

.metric-label {
    font-size: 11px;
    color: var(--text-dim);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.metric-value {
    font-size: var(--font-size-sm);
    font-family: var(--font-mono);
    color: var(--text-secondary);
    font-weight: 600;
}

.sidebar-footer {
    margin-top: auto;
    border-bottom: none !important;
    background: rgba(0, 0, 0, 0.05);
}

.system-status {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: var(--space-xs);
}

.status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
    animation: status-blink 2s ease-in-out infinite;
}

@keyframes status-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.version-info {
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    opacity: 0.5;
    letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════════════════════════════
   Chat Workspace & Input Panel
   ═══════════════════════════════════════════════════════════════ */

#chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
    background: var(--bg-secondary);
}

.messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-xl);
    scroll-behavior: smooth;
}

/* Welcome Screen */
.welcome-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    text-align: center;
    position: relative;
    padding: var(--space-xl);
}

.welcome-glow {
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(circle, var(--accent-glow) 0%, var(--purple-glow) 40%, transparent 70%);
    border-radius: 50%;
    filter: blur(90px);
    animation: welcome-glow-pulse 5s ease-in-out infinite;
    pointer-events: none;
}

@keyframes welcome-glow-pulse {
    0%, 100% { opacity: 0.25; transform: scale(1); }
    50% { opacity: 0.45; transform: scale(1.1); }
}

.welcome-diamond {
    width: 50px; height: 50px;
    transform: rotate(45deg);
    margin-bottom: var(--space-xl);
    position: relative;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.welcome-diamond:hover {
    transform: rotate(225deg);
}

.welcome-diamond-inner {
    width: 100%; height: 100%;
    background: linear-gradient(135deg, var(--accent), var(--purple), var(--accent2));
    background-size: 200% 200%;
    border-radius: 8px;
    box-shadow: var(--shadow-glow-strong), 0 0 50px var(--purple-glow);
    animation: welcome-diamond-spin 12s linear infinite, logo-gradient-shift 4s ease-in-out infinite;
}

@keyframes welcome-diamond-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.welcome-message h2 {
    font-family: var(--font-heading);
    font-size: 40px;
    font-weight: 900;
    letter-spacing: 0.06em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 40%, var(--purple) 85%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-sm);
}

.welcome-subtitle {
    font-family: var(--font-sans);
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.welcome-desc {
    font-size: var(--font-size-sm);
    color: var(--text-dim);
    margin-bottom: var(--space-xxl);
    max-width: 500px;
    line-height: 1.6;
}

.welcome-capabilities {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
    max-width: 720px;
    width: 100%;
}

.cap-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-xl) var(--space-md);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: default;
}

.cap-card:hover {
    background: var(--bg-hover);
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.cap-icon-wrap {
    width: 40px; height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--accent-dim), var(--purple-dim));
    color: var(--accent-hover);
    transition: all var(--transition-normal);
    border: 1px solid var(--border);
}

.cap-card:hover .cap-icon-wrap {
    background: linear-gradient(135deg, var(--accent-glow), var(--purple-glow));
    box-shadow: 0 0 12px var(--accent-glow);
    border-color: var(--border-glow);
}

.cap-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.cap-desc {
    font-size: 11px;
    color: var(--text-dim);
    text-align: center;
    line-height: 1.4;
}

/* Floating Input Panel */
#input-area {
    padding: 0 var(--space-xl) var(--space-xl);
    background: linear-gradient(to top, var(--bg-secondary) 80%, transparent 100%);
}

#input-container {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

#input-container:focus-within {
    border-color: var(--border-glow);
    box-shadow: 0 0 0 3px var(--accent-dim), var(--shadow-glow), var(--shadow-md);
    transform: translateY(-1px);
}

.input-row {
    display: flex;
    align-items: flex-end;
    padding: var(--space-md);
    gap: var(--space-md);
}

#user-input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: var(--font-size-md);
    line-height: 1.6;
    resize: none;
    max-height: 240px;
    outline: none;
    padding: var(--space-xs) 0;
}

#user-input::placeholder {
    color: var(--text-dim);
}

.send-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    border: none;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    color: white;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    box-shadow: 0 2px 8px var(--accent-glow);
}

.send-btn:hover:not(:disabled) {
    transform: scale(1.05) translateY(-1px);
    box-shadow: var(--shadow-glow-strong);
}

.send-btn:disabled {
    opacity: 0.25;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.input-footer {
    display: flex;
    justify-content: space-between;
    padding: 0 var(--space-md) var(--space-sm);
    font-size: 10px;
    color: var(--text-dim);
    font-family: var(--font-mono);
    opacity: 0.8;
}

.file-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--border);
    background: rgba(0,0,0,0.1);
}

.file-attachments.hidden { display: none !important; }

.file-chip {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 4px 12px;
    background: var(--bg-hover);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.file-chip:hover {
    border-color: var(--border-glow);
}

.file-chip .remove {
    cursor: pointer;
    color: var(--text-dim);
    font-size: 13px;
    transition: color var(--transition-fast);
}

.file-chip .remove:hover { color: var(--error); }

/* ═══════════════════════════════════════════════════════════════
   Right Side Information Panel
   ═══════════════════════════════════════════════════════════════ */

#right-panel {
    width: var(--panel-width);
    background: var(--bg-primary);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-slow), opacity var(--transition-slow), transform var(--transition-slow);
}

#right-panel.panel-closed {
    width: 0;
    opacity: 0;
    overflow: hidden;
    transform: translateX(15px);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.05);
}

.panel-header h3 {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 700;
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-xl);
}

/* ═══════════════════════════════════════════════════════════════
   Settings Modals
   ═══════════════════════════════════════════════════════════════ */

.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal.hidden { display: none !important; }

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(4, 6, 10, 0.6);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    width: 480px;
    max-height: 85vh;
    background: var(--bg-primary);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg), var(--shadow-glow-strong);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xl);
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: var(--font-size-lg);
    font-weight: 800;
    letter-spacing: 0.02em;
}

.modal-body {
    padding: var(--space-xl);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.05);
}

.setting-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.setting-group label {
    display: block;
    font-family: var(--font-sans);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.setting-group select,
.setting-group input[type="text"],
.setting-group input[type="password"],
.setting-group input[type="number"] {
    width: 100%;
    padding: var(--space-md);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: var(--font-size-md);
    font-family: var(--font-sans);
    outline: none;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.setting-group select:focus,
.setting-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-dim);
}

.setting-group select:disabled,
.setting-group input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.setting-group input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
    height: 6px;
    border-radius: var(--radius-full);
}

.setting-group input[type="checkbox"] {
    accent-color: var(--accent);
    margin-right: var(--space-sm);
    width: 15px; height: 15px;
    cursor: pointer;
}

.setting-group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    text-transform: none;
    font-weight: 500;
    font-size: var(--font-size-md);
    color: var(--text-primary);
    cursor: pointer;
}

.btn-primary {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--accent), var(--purple));
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 10px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-secondary {
    padding: 10px 24px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
}

.btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* ═══════════════════════════════════════════════════════════════
   Responsive Easing
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .entry-stage {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    .entry-story h1 {
        font-size: clamp(40px, 16vw, 70px);
    }
    #sidebar { position: absolute; z-index: 50; height: calc(100vh - var(--topbar-height)); }
    #sidebar.sidebar-closed { width: 0; }
    .welcome-capabilities { grid-template-columns: repeat(2, 1fr); }
    .topbar-center { display: none !important; }
    .gpu-status-widget { display: none !important; }
}

/* ═══════════════════════════════════════════════════════════════
   Premium Revamp — Keyframe Animations
   ═══════════════════════════════════════════════════════════════ */

/* Staggered Intro */
@keyframes premium-fade-up {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Ambient welcome glow motion */
@keyframes welcome-ambient-glow {
    0%, 100% {
        transform: scale(1) translate(0px, 0px);
        opacity: 0.25;
    }
    33% {
        transform: scale(1.1) translate(15px, -10px);
        opacity: 0.35;
    }
    66% {
        transform: scale(0.95) translate(-10px, 15px);
        opacity: 0.3;
    }
}

/* Status ring ripple effect */
@keyframes ring-pulse-success {
    0% {
        box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.5);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(52, 211, 153, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(52, 211, 153, 0);
    }
}

@keyframes ring-pulse-accent {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
    }
    70% {
        box-shadow: 0 0 0 8px rgba(59, 130, 246, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

/* Shimmer pulse for entry panel */
@keyframes panel-shimmer {
    0%, 100% {
        border-color: var(--border-glass);
        box-shadow: var(--shadow-lg), var(--shadow-glow), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    }
    50% {
        border-color: var(--border-glow);
        box-shadow: var(--shadow-lg), 0 0 32px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    }
}

/* ═══════════════════════════════════════════════════════════════
   Premium Revamp — Overrides & Enhancements
   ═══════════════════════════════════════════════════════════════ */

/* Staggered Intro sequence for Landing page */
.entry-story h1 {
    animation: premium-fade-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.1s;
}
.entry-lead {
    animation: premium-fade-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.2s;
}
.entry-proof-list {
    animation: premium-fade-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: 0.3s;
}
.entry-panel {
    animation: premium-fade-up 0.8s cubic-bezier(0.16, 1, 0.3, 1) both, panel-shimmer 8s ease-in-out infinite;
    animation-delay: 0.4s;
    transition: transform var(--transition-normal), box-shadow var(--transition-slow);
}
.entry-panel:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow-strong), 0 0 40px var(--purple-glow);
}

/* Entry Form input focus states */
.entry-form input {
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.entry-form input:focus {
    transform: translateY(-1px);
    box-shadow: 0 0 0 3px var(--accent-dim), var(--shadow-glow);
    border-color: var(--accent);
}

/* Buttons upgrade */
.btn-primary, .send-btn {
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast), filter var(--transition-fast);
}
.btn-primary::after, .send-btn::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition-fast);
}
.btn-primary:hover, .send-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-glow-strong), 0 4px 12px var(--purple-glow);
}
.btn-primary:hover::after, .send-btn:hover::after {
    opacity: 1;
}
.btn-primary:active, .send-btn:active {
    transform: translateY(0) scale(0.96);
    filter: brightness(0.9);
}

/* Secondary Button Hover */
.btn-secondary {
    transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast), color var(--transition-fast);
}
.btn-secondary:hover {
    transform: translateY(-1.5px);
    border-color: var(--border-glow);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}
.btn-secondary:active {
    transform: translateY(0);
}

/* Settings Gear Continuous Spin on Hover */
#btn-settings svg {
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
#btn-settings:hover svg {
    transform: rotate(90deg);
}

/* Topbar Item Tweaks */
.gpu-status-widget {
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal), background var(--transition-normal), transform var(--transition-fast);
}
.gpu-status-widget:hover {
    transform: translateY(-1px);
}
.gpu-dot-online {
    animation: ring-pulse-success 2.5s infinite;
}
.gpu-dot-pending {
    animation: ring-pulse-accent 1.5s infinite;
}

/* Mode Switcher slide effect */
.mode-btn {
    transition: color var(--transition-fast), transform var(--transition-fast);
}
.mode-btn:hover {
    color: var(--text-primary);
    transform: scale(1.03);
}

/* Modal transition strategy - overrides display:none issue */
.modal {
    display: flex !important;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.35s cubic-bezier(0.25, 0.8, 0.25, 1), visibility 0.35s;
}
.modal:not(.hidden) {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
.modal-overlay {
    transition: backdrop-filter 0.35s ease;
}
.modal-content {
    transform: scale(0.94) translateY(20px);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
}
.modal:not(.hidden) .modal-content {
    transform: scale(1) translateY(0);
    box-shadow: var(--shadow-lg), 0 0 32px var(--accent-glow), 0 0 64px var(--purple-glow);
}

/* Session item active ring pulse */
.session-item {
    position: relative;
    border-left: 2px solid transparent;
}
.session-item:hover {
    border-left-color: var(--border-hover);
}
.session-item.active {
    animation: ring-pulse-accent 3s infinite;
}