/* =============================================================================
   OZR LABS — Calculator SPA Shell Styles
   File: calculator_shell.css
   ============================================================================= */

/* ── Self-hosted Montserrat (SIL OFL, free for any use) ─────────────────── */
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/static/fonts/montserrat/Montserrat-Regular.62d08c41cefb.ttf") format('truetype');
}
@font-face {
  font-family: 'Montserrat';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("/static/fonts/montserrat/Montserrat-Bold.5ce2f7a911f9.ttf") format('truetype');
}
/* Synthesized weights (500/600/800) — browsers will derive these from 400/700.
   Add Bold.ttf faces for additional explicit weights if a specific weight
   (e.g. 800 ExtraBold) is needed without synthesis. */

/* ── Custom scrollbar ─────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }
html:not(.dark) ::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.12); }
html:not(.dark) ::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.22); }


/* ════════════════════════════════════════════════════════════════════════ */
/*  TOP BAR                                                                */
/* ════════════════════════════════════════════════════════════════════════ */

#topbar {
  position: relative;
  /* App chrome floats above the workspace. Raised from 100 to 300 so
     per-calculator topbar dropdowns (trapped in this stacking context)
     paint above workspace layers (viewport overlays up to z-120, HUD
     z-150, content toolbars) while staying below transient layers
     (profile overlay z-500, modals z-1000+, toasts). */
  z-index: 300;
  display: flex;
  align-items: center;
  height: var(--topbar-h);
  flex-shrink: 0;
  background: var(--shell-bar);
  border-bottom: 1px solid var(--shell-bar-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  user-select: none;
}

/* Hamburger tile */
.topbar-hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--sidebar-collapsed-w);
  height: 100%;
  flex-shrink: 0;
  background: none;
  border: none;
  border-right: 1px solid var(--shell-bar-border);
  color: var(--shell-text-muted);
  font-size: 16px;
  cursor: pointer;
  transition: color 150ms ease, background 150ms ease;
}
.topbar-hamburger:hover {
  color: var(--shell-text);
  background: var(--shell-hover);
}

/* Brand area */
.topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  flex: 1;
  min-width: 0;
}

.topbar-logo {
  height: 22px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}
.topbar-logo.dark-logo  { display: block; }
.topbar-logo.light-logo { display: none; }
html:not(.dark) .topbar-logo.dark-logo  { display: none; }
html:not(.dark) .topbar-logo.light-logo { display: block; }

.topbar-divider {
  display: inline-block;
  width: 1px;
  height: 18px;
  background: var(--shell-bar-border);
  flex-shrink: 0;
}

.topbar-title {
  font-family: 'Montserrat', monospace;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--shell-text-muted);
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color 200ms ease;
}

/* Right action buttons */
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 12px;
  flex-shrink: 0;
}

.topbar-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: none;
  color: var(--shell-text-muted);
  font-size: 15px;
  cursor: pointer;
  transition: background 150ms ease, color 150ms ease;
}
.topbar-icon-btn:hover {
  background: var(--shell-hover);
  color: var(--shell-text);
}

.topbar-avatar-btn {
  background: rgba(255, 255, 255, 0.14); /* Brighter frosted slate for high dark-mode contrast */
  border: 1px solid rgba(255, 255, 255, 0.24); /* Defined white border ring */
  font-family: 'Montserrat', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.95); /* Bright high-contrast titanium white */
  transition: background 150ms ease, border-color 150ms ease, color 150ms ease;
}
html:not(.dark) .topbar-avatar-btn {
  background: rgba(0, 0, 0, 0.07); /* Brighter light-mode slate background */
  border-color: rgba(0, 0, 0, 0.14);
  color: #0f172a;
}
.topbar-avatar-btn:hover {
  background: rgba(37, 99, 235, 0.15); /* Vibrant blue hover overlay */
  border-color: #2563EB;
  color: #60a5fa; /* Vibrant light blue initials/icon */
}
html:not(.dark) .topbar-avatar-btn:hover {
  background: rgba(37, 99, 235, 0.08);
  border-color: #2563EB;
  color: #2563EB;
}


/* ════════════════════════════════════════════════════════════════════════ */
/*  APP BODY (sidebar + content)                                           */
/* ════════════════════════════════════════════════════════════════════════ */

#app-body {
  display: flex;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}


/* ════════════════════════════════════════════════════════════════════════ */
/*  SIDEBAR                                                                */
/* ════════════════════════════════════════════════════════════════════════ */

#sidebar {
  position: relative;   /* becomes absolute on mobile via media query */
  z-index: 50;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  width: var(--sidebar-collapsed-w);
  height: 100%;
  background: var(--shell-sidebar-bg);
  border-right: 1px solid var(--shell-sidebar-border);
  box-shadow: inset -1px 0 0 rgba(255,255,255,0.03);
  transition: width var(--sidebar-transition) 150ms;
  overflow: hidden;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* Expanded state */
#sidebar.expanded {
  width: var(--sidebar-expanded-w);
}

/* Pinned state — sidebar stays open, no overlay */
#sidebar.pinned {
  position: relative;
}

/* Hover-expand when collapsed (desktop) */
@media (min-width: 769px) {
  #sidebar:not(.pinned):hover {
    width: var(--sidebar-expanded-w);
    transition-delay: 0s !important;
  }
  #sidebar:not(.pinned):hover .sidebar-item-label,
  #sidebar:not(.pinned):hover .sidebar-section-label,
  #sidebar:not(.pinned):hover .sidebar-category-label,
  #sidebar:not(.pinned):hover .sidebar-header,
  #sidebar:not(.pinned):hover .sidebar-projects-section,
  #sidebar:not(.pinned):hover .sidebar-projects-actions,
  #sidebar:not(.pinned):hover .sidebar-signin-prompt,
  #sidebar:not(.pinned):hover .sidebar-kb-hint .sidebar-item-label {
    opacity: 1;
    pointer-events: auto;
  }
  #sidebar:not(.pinned):hover .sidebar-tooltip { display: none; }
}

/* Sidebar inner header */
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--topbar-h);
  padding: 0 16px;
  flex-shrink: 0;
  border-bottom: 1px solid var(--shell-sidebar-border);
  overflow: hidden;
  white-space: nowrap;
}

/* Sidebar Header Title (Replaces Redundant Logo) */
.sidebar-header-title {
  font-family: 'Montserrat', monospace;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.25em;
  color: var(--shell-text);
  opacity: 0;
  transition: opacity 200ms ease;
  white-space: nowrap;
  pointer-events: none;
  text-transform: uppercase;
}
#sidebar.expanded .sidebar-header-title,
#sidebar:hover .sidebar-header-title {
  opacity: 0.8;
}

.pin-btn {
  background: none;
  border: none;
  color: var(--shell-text-muted);
  font-size: 11px;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  opacity: 0;
  transition: background 150ms ease, color 150ms ease, opacity 200ms ease;
  flex-shrink: 0;
}
.pin-btn:hover { background: var(--shell-hover); color: var(--shell-text); }
#sidebar.expanded .pin-btn,
#sidebar:hover .pin-btn { opacity: 1; }
#sidebar.pinned .pin-btn { color: var(--shell-accent); opacity: 1; }
#sidebar.pinned #pin-icon { transform: rotate(-45deg); }

/* Scrollable list */
.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  padding: 8px 0 0;
}

/* Section labels */
.sidebar-section-label {
  font-family: 'Montserrat', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--shell-section-label);
  padding: 8px 12px 4px;
  white-space: nowrap;
  overflow: hidden;
  opacity: 0;
  transition: opacity 200ms ease;
}
#sidebar.expanded .sidebar-section-label,
#sidebar:hover .sidebar-section-label { opacity: 1; }

/* Collapsible accordion categories */
.sidebar-collapsible-category {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.sidebar-category-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 0 11px;
  height: 34px;
  background: none;
  border: none;
  border-left: 2px solid transparent;
  color: var(--shell-text-muted);
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  transition: background 150ms ease, color 150ms ease;
  overflow: hidden;
  position: relative;
}
.sidebar-category-trigger:hover {
  background: var(--shell-hover);
  color: var(--shell-text);
}
.sidebar-category-trigger.active {
  color: var(--shell-text);
}
.sidebar-category-trigger .sidebar-item-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
#sidebar.expanded .sidebar-category-trigger .sidebar-item-label,
#sidebar:hover .sidebar-category-trigger .sidebar-item-label {
  opacity: 1;
  pointer-events: auto;
}

.category-chevron {
  margin-left: auto;
  font-size: 10px;
  opacity: 0;
  transform: rotate(-90deg);
  transition: transform 250ms ease, opacity 200ms ease;
  flex-shrink: 0;
}
#sidebar.expanded .category-chevron,
#sidebar:hover .category-chevron {
  opacity: 0.6;
}
.sidebar-collapsible-category.open .category-chevron {
  transform: rotate(0deg);
}

.sidebar-category-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 250ms cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  width: 100%;
}
.sidebar-collapsible-category.open .sidebar-category-content {
  max-height: 500px;
}

/* Nested items styling */
.sidebar-category-content .sidebar-item {
  padding-left: 20px;
  border-left: 2px solid transparent;
}
.sidebar-category-content .sidebar-item.active {
  border-left-color: var(--shell-active-border);
}


/* Sidebar nav items (tightened for the slimmer 232px rail) */
.sidebar-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 0 11px;
  height: 34px;
  background: none;
  border: none;
  border-left: 2px solid transparent;
  color: var(--shell-text-muted);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 500;
  text-align: left;
  transition: background 150ms ease, color 150ms ease, border-color 150ms ease;
  overflow: hidden;
}
.sidebar-item:hover {
  background: var(--shell-hover);
  color: var(--shell-text);
}
.sidebar-item.active {
  background: var(--shell-active-bg);
  border-left-color: var(--shell-active-border);
  color: var(--shell-accent);
}

.sidebar-item--disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

/* "SOON" pill that appears next to disabled calculator labels.
   Reuses the existing palette: blue/dark-on-light, mono caps. */
.sidebar-coming-soon-badge {
  margin-left: auto;
  flex-shrink: 0;
  font-family: 'Montserrat', monospace;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.15em;
  padding: 2px 6px;
  border-radius: 3px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(37, 99, 235, 0.3);
  color: #2563eb;
  text-transform: uppercase;
  opacity: 1;
}
html.dark .sidebar-coming-soon-badge {
  background: rgba(96, 165, 250, 0.18);
  border-color: rgba(96, 165, 250, 0.4);
  color: #93c5fd;
}

.sidebar-item-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  font-size: 13px;
}

.sidebar-item-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
#sidebar.expanded .sidebar-item-label,
#sidebar:hover .sidebar-item-label { opacity: 1; pointer-events: auto; }

/* Tooltip (only visible in collapsed non-hover state) */
.sidebar-tooltip {
  position: absolute;
  left: calc(var(--sidebar-collapsed-w) + 8px);
  top: 50%;
  transform: translateY(-50%);
  background: rgba(20,20,20,0.95);
  color: #fff;
  font-size: 11px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.1);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 120ms ease;
  z-index: 200;
}
.sidebar-tooltip kbd {
  font-family: 'Montserrat', monospace;
  font-size: 9px;
  background: rgba(255,255,255,0.1);
  padding: 1px 4px;
  border-radius: 3px;
  margin-left: 4px;
}
html:not(.dark) .sidebar-tooltip {
  background: rgba(15, 23, 42, 0.92);
  color: #fff;
  border-color: rgba(15, 23, 42, 0.20);
}
html:not(.dark) .sidebar-tooltip kbd {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}
#sidebar:not(.expanded):not(:hover) .sidebar-item:hover .sidebar-tooltip { opacity: 1; }

/* Spacer */
.sidebar-spacer { flex: 1; min-height: 16px; }

/* Projects section */
.sidebar-projects-section {
  border-top: 1px solid var(--shell-sidebar-border);
  padding-bottom: 4px;
}

.sidebar-projects-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  color: var(--shell-text-muted);
}

.sidebar-project-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  height: 34px;
  cursor: pointer;
  color: var(--shell-text-muted);
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: background 120ms ease, color 120ms ease;
}
.sidebar-project-item:hover {
  background: var(--shell-hover);
  color: var(--shell-text);
}
.sidebar-project-name {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transition: opacity 200ms ease;
}
#sidebar.expanded .sidebar-project-name,
#sidebar:hover .sidebar-project-name { opacity: 1; }

.sidebar-project-badge {
  font-family: 'Montserrat', monospace;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--shell-active-bg);
  color: var(--shell-accent);
  padding: 1px 5px;
  border-radius: 3px;
  opacity: 0;
  transition: opacity 200ms ease;
  flex-shrink: 0;
}
#sidebar.expanded .sidebar-project-badge,
#sidebar:hover .sidebar-project-badge { opacity: 1; }

.sidebar-projects-actions {
  display: flex;
  gap: 6px;
  padding: 6px 12px;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
#sidebar.expanded .sidebar-projects-actions,
#sidebar:hover .sidebar-projects-actions { opacity: 1; pointer-events: auto; }

.sidebar-projects-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-family: 'Montserrat', sans-serif;
  font-weight: 500;
  color: var(--shell-text-muted);
  background: var(--shell-hover);
  border: 1px solid var(--shell-sidebar-border);
  border-radius: 5px;
  padding: 4px 8px;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: background 150ms ease, color 150ms ease;
}
.sidebar-projects-btn:hover { background: var(--shell-active-bg); color: var(--shell-accent); }
.sidebar-projects-btn--new { color: var(--shell-accent); }

.sidebar-signin-prompt {
  padding: 10px 16px;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
#sidebar.expanded .sidebar-signin-prompt,
#sidebar:hover .sidebar-signin-prompt { opacity: 1; pointer-events: auto; }
.sidebar-signin-prompt p {
  font-size: 11px;
  color: var(--shell-text-muted);
  margin-bottom: 6px;
  line-height: 1.4;
}
.sidebar-signin-link {
  font-size: 11px;
  font-weight: 600;
  color: var(--shell-accent);
  text-decoration: none;
}
.sidebar-signin-link:hover { text-decoration: underline; }

/* Back-to-website link */
.sidebar-back-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 11px;
  height: 34px;
  color: var(--shell-text-muted);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-decoration: none;
  border-top: 1px solid var(--shell-sidebar-border);
  border-bottom: 1px solid var(--shell-sidebar-border);
  transition: background 120ms ease, color 120ms ease;
  margin-bottom: 2px;
}
.sidebar-back-link:hover {
  background: var(--shell-hover);
  color: var(--shell-text);
}
.sidebar-back-link .sidebar-item-icon {
  font-size: 11px;
  width: 36px;
  flex-shrink: 0;
  opacity: 0.7;
}
.sidebar-back-link .sidebar-item-label {
  font-size: 11px;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
  letter-spacing: 0.01em;
}
#sidebar.expanded .sidebar-back-link .sidebar-item-label,
#sidebar:hover .sidebar-back-link .sidebar-item-label { opacity: 1; pointer-events: auto; }
.sidebar-back-link .sidebar-tooltip { font-size: 10px; }

/* Keyboard hint row */
.sidebar-kb-hint {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-top: 1px solid var(--shell-sidebar-border);
  color: var(--shell-text-muted);
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  position: relative;
}
.sidebar-kb-hint .sidebar-item-icon {
  font-size: 12px;
  width: 36px;
  flex-shrink: 0;
}
.sidebar-kb-hint .sidebar-item-label {
  font-size: 11px;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
#sidebar.expanded .sidebar-kb-hint .sidebar-item-label,
#sidebar:hover .sidebar-kb-hint .sidebar-item-label { opacity: 1; pointer-events: auto; }
.sidebar-kb-hint .sidebar-tooltip { font-size: 10px; }


/* ════════════════════════════════════════════════════════════════════════ */
/*  CONTENT PANEL                                                          */
/* ════════════════════════════════════════════════════════════════════════ */

#content-panel {
  flex: 1;
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  background: var(--shell-bg);
}

/* Progress bar */
#progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 90;
  overflow: hidden;
  pointer-events: none;
}
#progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--shell-accent), #60a5fa);
  transition: width 200ms ease, opacity 300ms ease;
  opacity: 0;
  border-radius: 0 2px 2px 0;
}

/* Content views */
.content-view {
  flex: 1;
  width: 100%;
  height: 100%;
  display: none;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 280ms cubic-bezier(0.16,1,0.3,1), transform 280ms cubic-bezier(0.16,1,0.3,1);
}
.content-view.active {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}
.content-view.fade-out {
  opacity: 0 !important;
  transform: translateY(8px) !important;
  transition-duration: 180ms !important;
  transition-timing-function: ease-in !important;
}

/* Iframe */
#calc-frame {
  flex: 1;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
  background: var(--shell-bg);
}

#calc-view {
  overflow-y: auto;
}


/* ════════════════════════════════════════════════════════════════════════ */
/*  HOME VIEW                                                              */
/* ════════════════════════════════════════════════════════════════════════ */

#home-view {
  overflow: visible;
}

/* Animated grid background */
.home-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 0;
  pointer-events: none;
}
.home-grid-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, transparent 0%, var(--shell-bg) 92%);
}
html:not(.dark) .home-grid-bg {
  background-image: none;
}

.home-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 48px 32px 64px;
}

/* Header */
.home-header { margin-bottom: 48px; }

.home-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.home-eyebrow-line {
  width: 32px;
  height: 1px;
  background: var(--shell-accent);
  flex-shrink: 0;
}
.home-eyebrow-text {
  font-family: 'Montserrat', monospace;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--shell-accent);
}

.home-h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.05;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.home-h1-accent { color: var(--shell-accent); }

.home-subtitle {
  font-size: 16px;
  font-weight: 500;
  color: var(--shell-text-muted);
  max-width: 520px;
  line-height: 1.6;
}

/* Calculator grid */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 64px;
}

/* Card theme categories setup (Uniform OZR Blue) */
.calc-card {
  --card-theme-color: #2563eb;
  --card-theme-rgb: 37, 99, 235;
}

/* Sidebar category active/hover accent matching */
/* Sidebar category active/hover accent matching (Uniform OZR Blue) */
.sidebar-collapsible-category {
  --cat-theme-color: #2563eb;
}

.sidebar-collapsible-category:hover .sidebar-category-trigger {
  color: var(--cat-theme-color) !important;
}
.sidebar-collapsible-category.open .sidebar-category-trigger {
  color: var(--cat-theme-color) !important;
}

.sidebar-collapsible-category .sidebar-item:hover {
  color: var(--cat-theme-color) !important;
}
.sidebar-collapsible-category .sidebar-item.active {
  color: var(--cat-theme-color) !important;
  border-left-color: var(--cat-theme-color) !important;
  background: rgba(15, 23, 42, 0.03);
}
html.dark .sidebar-collapsible-category .sidebar-item.active {
  background: rgba(255, 255, 255, 0.02);
}

/* Light mode theme color overrides */
html:not(.dark) .sidebar-collapsible-category {
  --cat-theme-color: #2563eb;
}

/* Calc card - Premium OZR-brand frosted plate with active color accents */
.calc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at 100% 0%, rgba(var(--card-theme-rgb), 0.07) 0%, transparent 60%), rgba(13, 13, 16, 0.65); /* Rich obsidian slate with category glow */
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.05); /* Precise hair-thin border */
  border-radius: 12px;
  padding: 24px 24px 24px 32px; /* Inset left padding for the visual indicator line */
  cursor: pointer;
  text-align: left;
  width: 100%;
  color: var(--shell-text);
  overflow: hidden;
  box-shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.5);
  transition: border-color 250ms cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 250ms cubic-bezier(0.16, 1, 0.3, 1),
              background-color 250ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 250ms cubic-bezier(0.16, 1, 0.3, 1);
  animation: cardFadeUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

html:not(.dark) .calc-card {
  background: radial-gradient(circle at 100% 0%, rgba(var(--card-theme-rgb), 0.03) 0%, transparent 65%), rgba(255, 255, 255, 0.88); /* Polished white panel with category glow */
  border-color: rgba(15, 23, 42, 0.06);
  box-shadow: 0 10px 30px -10px rgba(15, 23, 42, 0.04);
}

/* Elegant left border vertical accent line */
.calc-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 3px;
  border-radius: 0 4px 4px 0;
  background: var(--card-theme-color);
  opacity: 0.65;
  transition: top 250ms cubic-bezier(0.16, 1, 0.3, 1),
              bottom 250ms cubic-bezier(0.16, 1, 0.3, 1),
              opacity 250ms cubic-bezier(0.16, 1, 0.3, 1),
              width 250ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* Hover State */
.calc-card:hover {
  transform: translateY(-2px); /* Premium, micro-lift */
  border-color: rgba(var(--card-theme-rgb), 0.35); /* Elegant brand category blue highlight */
  background: radial-gradient(circle at 100% 0%, rgba(var(--card-theme-rgb), 0.12) 0%, transparent 60%), rgba(20, 20, 25, 0.85); /* Slightly darker/richer obsidian tint with stronger glow */
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7),
              0 0 20px -5px rgba(var(--card-theme-rgb), 0.15);
}

.calc-card:hover::before {
  top: 16px;
  bottom: 16px;
  width: 4px;
  opacity: 1;
}

html:not(.dark) .calc-card:hover {
  border-color: rgba(var(--card-theme-rgb), 0.45);
  background: radial-gradient(circle at 100% 0%, rgba(var(--card-theme-rgb), 0.06) 0%, transparent 65%), #ffffff; /* Pop out card in light mode */
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.08),
              0 0 20px -5px rgba(var(--card-theme-rgb), 0.1);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

/* Clean icon frame */
.card-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  background: rgba(var(--card-theme-rgb), 0.08);
  border: 1px solid rgba(var(--card-theme-rgb), 0.18);
  color: rgba(var(--card-theme-rgb), 0.85);
  position: relative;
  transition: border-color 200ms cubic-bezier(0.16, 1, 0.3, 1), 
              background-color 200ms cubic-bezier(0.16, 1, 0.3, 1), 
              color 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

html:not(.dark) .card-icon-wrap {
  background: rgba(var(--card-theme-rgb), 0.05);
  border-color: rgba(var(--card-theme-rgb), 0.14);
  color: rgba(var(--card-theme-rgb), 0.9);
}

.calc-card:hover .card-icon-wrap {
  border-color: rgba(var(--card-theme-rgb), 0.3);
  background: rgba(var(--card-theme-rgb), 0.15);
  color: var(--card-theme-color);
}

html:not(.dark) .calc-card:hover .card-icon-wrap {
  border-color: rgba(var(--card-theme-rgb), 0.3);
  background: rgba(var(--card-theme-rgb), 0.08);
  color: var(--card-theme-color);
}

/* Premium pill badging */
.card-badge {
  font-family: 'Montserrat', sans-serif;
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 2px 8px;
  border-radius: 9999px;
  background: rgba(var(--card-theme-rgb), 0.06);
  color: rgba(var(--card-theme-rgb), 0.85);
  border: 1px solid rgba(var(--card-theme-rgb), 0.18);
  transition: color 200ms ease, border-color 200ms ease, background-color 200ms ease;
}

html:not(.dark) .card-badge {
  background: rgba(var(--card-theme-rgb), 0.05);
  border-color: rgba(var(--card-theme-rgb), 0.14);
  color: rgba(var(--card-theme-rgb), 0.9);
}

.calc-card:hover .card-badge {
  color: #ffffff;
  background: var(--card-theme-color);
  border-color: var(--card-theme-color);
}

html:not(.dark) .calc-card:hover .card-badge {
  color: #ffffff;
  background: var(--card-theme-color);
  border-color: var(--card-theme-color);
}

/* Premium Technical Typography */
.card-title {
  font-family: 'Ek Mukta', 'Montserrat', sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  color: #f8fafc;
  transition: color 200ms ease;
}

html:not(.dark) .card-title {
  color: #0f172a;
}

.calc-card:hover .card-title {
  color: var(--card-theme-color);
}

.card-desc {
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.55;
  margin-bottom: 20px;
  flex: 1;
  transition: color 250ms ease;
}

html:not(.dark) .card-desc {
  color: rgba(15, 23, 42, 0.6);
}

.calc-card:hover .card-desc {
  color: rgba(255, 255, 255, 0.85);
}

html:not(.dark) .calc-card:hover .card-desc {
  color: rgba(15, 23, 42, 0.85);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.card-tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 9px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 3px 8px;
  border-radius: 6px;
  letter-spacing: 0.01em;
  transition: border-color 200ms ease, color 200ms ease, background-color 200ms ease;
}

html:not(.dark) .card-tag {
  background: rgba(15, 23, 42, 0.03);
  border-color: rgba(15, 23, 42, 0.05);
  color: rgba(15, 23, 42, 0.55);
}

.calc-card:hover .card-tag {
  border-color: rgba(var(--card-theme-rgb), 0.25);
  background: rgba(var(--card-theme-rgb), 0.06);
  color: rgba(255, 255, 255, 0.8);
}

html:not(.dark) .calc-card:hover .card-tag {
  border-color: rgba(var(--card-theme-rgb), 0.3);
  background: rgba(var(--card-theme-rgb), 0.04);
  color: var(--card-theme-color);
}

.card-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: 'Montserrat', sans-serif;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--card-theme-color);
  opacity: 0.8;
  transition: color 200ms ease, transform 200ms ease, opacity 200ms ease;
}

html:not(.dark) .card-cta {
  color: var(--card-theme-color);
}

.card-cta i { transition: transform 200ms ease; }

.calc-card:hover .card-cta {
  color: var(--card-theme-color);
  opacity: 1;
}

html:not(.dark) .calc-card:hover .card-cta {
  color: var(--card-theme-color);
}

.calc-card:hover .card-cta i { transform: translateX(3px); }

/* Card stagger animation */
@keyframes cardFadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.calc-card:nth-child(1)  { animation-delay: 0ms; }
.calc-card:nth-child(2)  { animation-delay: 40ms; }
.calc-card:nth-child(3)  { animation-delay: 80ms; }
.calc-card:nth-child(4)  { animation-delay: 120ms; }
.calc-card:nth-child(5)  { animation-delay: 160ms; }
.calc-card:nth-child(6)  { animation-delay: 200ms; }
.calc-card:nth-child(7)  { animation-delay: 240ms; }
.calc-card:nth-child(8)  { animation-delay: 280ms; }
.calc-card:nth-child(9)  { animation-delay: 320ms; }
.calc-card:nth-child(10) { animation-delay: 360ms; }

/* Header reveal animation */
@keyframes revealUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal-up { animation: revealUp 0.7s cubic-bezier(0.16,1,0.3,1) both; }

/* Coming Soon */
.coming-soon-section {
  border-top: 1px solid var(--shell-sidebar-border);
  padding-top: 48px;
}
.coming-soon-heading {
  font-family: 'Montserrat', sans-serif;
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.coming-soon-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--shell-accent);
  flex-shrink: 0;
}
.coming-soon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.coming-soon-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  background: rgba(255,255,255,0.01);
  border: 1px dashed rgba(255,255,255,0.1);
  border-radius: 12px;
  opacity: 0.55;
}
html:not(.dark) .coming-soon-card { border-color: rgba(0,0,0,0.1); }
.coming-soon-icon {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.05);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--shell-text-muted);
  flex-shrink: 0;
  font-size: 14px;
}
html:not(.dark) .coming-soon-icon { background: rgba(0,0,0,0.04); }
.coming-soon-card h4 {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 4px;
  color: var(--shell-text);
}
.coming-soon-card p {
  font-size: 11px;
  color: var(--shell-text-muted);
  line-height: 1.5;
}


/* ════════════════════════════════════════════════════════════════════════ */
/*  PROFILE OVERLAY                                                        */
/* ════════════════════════════════════════════════════════════════════════ */

.overlay-backdrop {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
html:not(.dark) .overlay-backdrop {
  background: rgba(15, 23, 42, 0.35);
}
.overlay-backdrop:not([hidden]) {
  opacity: 1;
  pointer-events: auto;
}

.overlay-panel {
  position: relative;
  width: 90vw;
  max-width: 460px;
  max-height: 80vh;
  overflow-y: auto;
  background: var(--shell-panel);
  border: 1px solid var(--shell-panel-border);
  border-radius: 20px;
  padding: 28px;
  transform: scale(0.95) translateY(8px);
  transition: transform 280ms cubic-bezier(0.16,1,0.3,1);
}
.overlay-backdrop:not([hidden]) .overlay-panel {
  transform: scale(1) translateY(0);
}

.overlay-close-btn {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: none;
  background: var(--shell-hover);
  color: var(--shell-text-muted);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 150ms ease, color 150ms ease;
}
.overlay-close-btn:hover { background: rgba(255,255,255,0.1); color: var(--shell-text); }
html:not(.dark) .overlay-close-btn:hover { background: rgba(0,0,0,0.08); }

.overlay-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.profile-avatar-large {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--shell-active-bg);
  border: 2px solid var(--shell-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Montserrat', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--shell-accent);
  flex-shrink: 0;
}

.profile-header-info { flex: 1; min-width: 0; }
.profile-name {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.profile-email {
  font-size: 12px;
  color: var(--shell-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.profile-section {
  border-top: 1px solid var(--shell-sidebar-border);
  padding: 16px 0;
}

.profile-section-title {
  font-size: 10px;
  font-family: 'Montserrat', monospace;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--shell-text-muted);
  margin-bottom: 12px;
}

.profile-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  font-size: 13px;
}
.profile-stat-label { color: var(--shell-text-muted); }
.profile-stat-value { font-weight: 600; }
.profile-stat-value--active { color: #22c55e; }
html:not(.dark) .profile-stat-value--active { color: #047857; }

.profile-setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--shell-text);
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  width: 40px;
  height: 22px;
  background: var(--shell-hover);
  border: 1px solid var(--shell-sidebar-border);
  border-radius: 11px;
  cursor: pointer;
  padding: 0;
  transition: background 200ms ease;
}
.toggle-switch.on { background: var(--shell-accent); border-color: var(--shell-accent); }
.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--shell-thumb);
  transition: transform 200ms ease;
}
.toggle-switch.on .toggle-thumb {
  background: #fff;
  transform: translateX(18px);
}

.profile-signout-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--shell-danger);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--shell-danger-bg);
  border: 1px solid var(--shell-danger-border);
  transition: background 150ms ease;
}
.profile-signout-btn:hover { background: var(--shell-danger-bg-hover); }

.profile-signin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  background: var(--shell-accent);
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 150ms ease;
}
.profile-signin-btn:hover { opacity: 0.88; }


/* ════════════════════════════════════════════════════════════════════════ */
/*  LAPTOP SCREEN OPTIMIZATION (769px - 1366px)                             */
/* ════════════════════════════════════════════════════════════════════════ */

@media (min-width: 769px) and (max-width: 1366px) {
  :root {
    --sidebar-expanded-w: 222px;
  }
  /* Compacting sidebar elements */
  .sidebar-item,
  .sidebar-category-trigger {
    height: 32px;
    font-size: 12px;
    gap: 8px;
    padding: 0 10px;
  }
  .sidebar-category-content .sidebar-item {
    padding-left: 18px;
  }
  .sidebar-item-icon {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .sidebar-section-label {
    padding: 6px 12px 2px;
    font-size: 8px;
  }
  .sidebar-category-label {
    padding: 8px 12px 2px;
    font-size: 8px;
  }
  .sidebar-back-link {
    padding: 0 10px;
    height: 30px;
    font-size: 11px;
    gap: 8px;
  }
  .sidebar-back-link .sidebar-item-icon {
    width: 32px;
  }
  .sidebar-project-item {
    padding: 0 10px;
    height: 28px;
    font-size: 11px;
    gap: 8px;
  }
  .sidebar-projects-actions {
    padding: 4px 10px;
  }
  .sidebar-projects-btn {
    font-size: 10px;
    padding: 3px 6px;
  }
  .sidebar-kb-hint {
    padding: 6px 10px;
    font-size: 10px;
  }
  .sidebar-kb-hint .sidebar-item-icon {
    width: 32px;
  }
  /* Compact home inner padding for laptop screens */
  .home-inner {
    padding: 32px 24px 48px;
  }
  .home-header {
    margin-bottom: 32px;
  }
  .calc-grid {
    gap: 14px;
  }
  .calc-card {
    padding: 20px;
    border-radius: 12px;
  }
  .card-header {
    margin-bottom: 16px;
  }
  .card-icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    font-size: 18px;
  }
  .card-title {
    font-size: 15px;
    margin-bottom: 8px;
  }
  .card-desc {
    font-size: 12px;
    line-height: 1.45;
    margin-bottom: 14px;
  }
  .card-tags {
    margin-bottom: 16px;
  }
}


/* ════════════════════════════════════════════════════════════════════════ */
/*  MOBILE  (< 768px)                                                      */
/* ════════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
  #sidebar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: var(--sidebar-expanded-w);
    transform: translateX(-100%);
    z-index: 200;
    transition: transform var(--sidebar-transition);
    box-shadow: 4px 0 24px rgba(0,0,0,0.4);
  }
  #sidebar.expanded {
    transform: translateX(0);
    width: var(--sidebar-expanded-w);
  }
  #sidebar.expanded .sidebar-item-label,
  #sidebar.expanded .sidebar-section-label,
  #sidebar.expanded .sidebar-category-label,
  #sidebar.expanded .sidebar-header,
  #sidebar.expanded .sidebar-projects-section,
  #sidebar.expanded .sidebar-projects-actions,
  #sidebar.expanded .sidebar-signin-prompt,
  #sidebar.expanded .sidebar-kb-hint .sidebar-item-label,
  #sidebar.expanded .sidebar-logo { opacity: 1; pointer-events: auto; }

  /* Mobile drawer backdrop */
  #mobile-sidebar-backdrop {
    position: absolute;
    inset: 0;
    z-index: 150;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    display: none;
  }
  html:not(.dark) #mobile-sidebar-backdrop {
    background: rgba(15, 23, 42, 0.35);
  }
  #app-body.sidebar-open #mobile-sidebar-backdrop { display: block; }

  /* Pin is disabled on mobile */
  .pin-btn { display: none !important; }

  /* Topbar hamburger remains full width tile */
  .topbar-hamburger { width: var(--sidebar-collapsed-w); }

  /* Calc grid single column */
  .calc-grid { grid-template-columns: 1fr; }

  .sidebar-back-link { display: none; }

  .home-inner { padding: 32px 16px 48px; }
}


/* ════════════════════════════════════════════════════════════════════════ */
/*  SIDEBAR PROJECTS TREE VIEW                                              */
/* ════════════════════════════════════════════════════════════════════════ */

#sidebar-projects-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 0 4px;
}

.sidebar-project-folder {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.sidebar-project-folder-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 8px;
  border-radius: 6px;
  color: var(--shell-text-muted);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: background 120ms ease, color 120ms ease;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar-project-folder-trigger:hover {
  background: var(--shell-hover);
  color: var(--shell-text);
}

.sidebar-project-folder-trigger .folder-chevron {
  font-size: 8px;
  transition: transform 200ms ease;
  flex-shrink: 0;
}
.sidebar-project-folder.open .sidebar-project-folder-trigger .folder-chevron {
  transform: rotate(90deg);
}

.sidebar-project-folder-trigger .folder-icon {
  font-size: 10px;
  color: var(--shell-accent);
  opacity: 0.8;
  flex-shrink: 0;
}

.sidebar-project-folder-trigger .folder-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  opacity: 0;
  transition: opacity 200ms ease;
}
#sidebar.expanded .sidebar-project-folder-trigger .folder-label,
#sidebar:hover .sidebar-project-folder-trigger .folder-label {
  opacity: 1;
}

.sidebar-project-folder-trigger .folder-count {
  font-size: 9px;
  background: var(--shell-hover);
  padding: 1px 4px;
  border-radius: 3px;
  font-family: monospace;
  opacity: 0;
  transition: opacity 200ms ease;
  flex-shrink: 0;
}
#sidebar.expanded .sidebar-project-folder-trigger .folder-count,
#sidebar:hover .sidebar-project-folder-trigger .folder-count {
  opacity: 0.8;
}

.sidebar-project-folder-content {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding-left: 14px;
  border-left: 1px dashed var(--shell-bar-border);
  margin-left: 11px;
  margin-top: 2px;
  margin-bottom: 2px;
}
.sidebar-project-folder.open .sidebar-project-folder-content {
  display: flex;
}

.sidebar-project-item {
  height: 26px !important;
  font-size: 10.5px !important;
  padding: 0 8px !important;
  border-radius: 4px !important;
}

/* ── GLOBAL SELECT DROPDOWN THEMING ── */
select {
  background-color: var(--shell-bar);
  color: var(--shell-text);
  border: 1px solid var(--shell-bar-border);
  padding: 8px 12px;
  border-radius: 6px;
  outline: none;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 150ms ease, background-color 150ms ease;
}

select:focus {
  border-color: var(--shell-accent);
}

select option {
  background-color: #111111;
  color: #ffffff;
}

html:not(.dark) select option {
  background-color: #ffffff;
  color: #0f172a;
}


/* ── EMAIL UNVERIFIED WARNING BANNER ── */
/* ── Email Verify Toast Popup ─────────────────────────── */
.email-verify-toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 320px;
  background: rgba(14, 16, 22, 0.92);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border: 1px solid rgba(37, 99, 235, 0.35);
  border-radius: 12px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(37, 99, 235, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
  z-index: 9999;
  overflow: hidden;
  /* Start hidden — JS adds .evt-visible to slide it in */
  opacity: 0;
  transform: translateX(calc(100% + 40px));
  pointer-events: none;
  transition:
    opacity 420ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 420ms cubic-bezier(0.16, 1, 0.3, 1);
}

.email-verify-toast.evt-visible {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.email-verify-toast.evt-hiding {
  opacity: 0;
  transform: translateX(calc(100% + 40px));
  pointer-events: none;
}

/* Header row */
.evt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 0;
}

.evt-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(37, 99, 235, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #3b82f6;
  font-size: 15px;
  flex-shrink: 0;
}

.evt-close {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.35);
  font-size: 13px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  line-height: 1;
  transition: color 180ms ease, background 180ms ease;
}
.evt-close:hover {
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.07);
}

/* Body */
.evt-body {
  padding: 10px 16px 4px;
}

.evt-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 13px;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 4px;
  letter-spacing: -0.01em;
}

.evt-desc {
  font-family: 'Montserrat', sans-serif;
  font-size: 11.5px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
  line-height: 1.5;
}

/* Footer */
.evt-footer {
  padding: 12px 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.evt-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: 'Montserrat', monospace;
  font-size: 10.5px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
  padding: 8px 16px;
  border-radius: 6px;
  align-self: flex-start;
  transition: all 200ms ease;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}
.evt-cta:hover {
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.45);
  transform: translateY(-1px);
}
.evt-cta i {
  font-size: 9px;
  transition: transform 180ms ease;
}
.evt-cta:hover i {
  transform: translateX(3px);
}

/* Auto-dismiss progress bar */
.evt-progress-bar {
  width: 100%;
  height: 2px;
  background: rgba(37, 99, 235, 0.15);
  border-radius: 2px;
  overflow: hidden;
}
.evt-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2563eb, #3b82f6);
  border-radius: 2px;
  transition: width 100ms linear;
}

/* Disabled / Coming Soon cards (production-only) */
.calc-card--disabled { pointer-events: none; user-select: none; }
.calc-card--disabled .card-badge { background: rgba(120,120,120,0.6); }