/* ==========================================================================
   OBSCURA OS - UNIFIED THEME SYSTEM & COLORWAYS
   Supports:
   1. Botanical & Amber (Default)
   2. Obsidian & Royal Purple
   3. Monochrome Slate
   Supports both Light and Dark modes with instant client-side switching.
   Zero server calls. Zero flicker.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. COLORWAY: Botanical & Amber (Default)
   -------------------------------------------------------------------------- */
:root,
:root[data-color-theme="botanical"] {
  --paper: #EDEEE4;
  --paper-raised: #F5F6EF;
  --paper-inset: #E5E7DD;
  --rule: #C9D0BE;
  --rule-strong: #A9B39B;
  --ink: #1F2E23;
  --ink-soft: #4B5D4F;
  --ink-mid: #4B5D4F;
  --ink-faint: #7C897E;
  --accent: #96702B;
  --accent-strong: #7A5A22;
  --accent-soft: #E4D6B4;
  --accent-border: rgba(150, 112, 43, 0.35);
  --good: #3E7A4F;
  --good-soft: #D9EADD;
  --danger: #A6432F;
  --danger-soft: #F0DAD3;
  --focus: #96702B;
  --card-bg: var(--paper-raised);
}

:root[data-theme="dark"],
:root[data-color-theme="botanical"][data-theme="dark"] {
  --paper: #141C17;
  --paper-raised: #1A2420;
  --paper-inset: #0F1612;
  --rule: #33443A;
  --rule-strong: #48604F;
  --ink: #E7ECE4;
  --ink-soft: #B7C4B9;
  --ink-mid: #B7C4B9;
  --ink-faint: #7F8F82;
  --accent: #D9A94F;
  --accent-strong: #EFC576;
  --accent-soft: #3A331E;
  --accent-border: rgba(217, 169, 79, 0.35);
  --good: #7FCB93;
  --good-soft: #1E3324;
  --danger: #E08669;
  --danger-soft: #3A2420;
  --focus: #D9A94F;
  --card-bg: var(--paper-raised);
}

/* --------------------------------------------------------------------------
   2. COLORWAY: Obsidian & Royal Purple
   -------------------------------------------------------------------------- */
:root[data-color-theme="purple"] {
  --paper: #F3F1F7 !important;
  --paper-raised: #FAF9FD !important;
  --paper-inset: #E8E4F0 !important;
  --rule: #D1CADE !important;
  --rule-strong: #B4A9C9 !important;
  --ink: #1D172A !important;
  --ink-soft: #52476A !important;
  --ink-mid: #52476A !important;
  --ink-faint: #81759B !important;
  --accent: #7839D6 !important;
  --accent-strong: #5924A8 !important;
  --accent-soft: #E8DCFC !important;
  --accent-border: rgba(120, 57, 214, 0.35) !important;
  --good: #2E7D47 !important;
  --good-soft: #D7EDE0 !important;
  --danger: #B33927 !important;
  --danger-soft: #F4DFDB !important;
  --focus: #7839D6 !important;
  --card-bg: var(--paper-raised) !important;
}

:root[data-color-theme="purple"][data-theme="dark"] {
  --paper: #110D1A !important;
  --paper-raised: #191424 !important;
  --paper-inset: #0C0913 !important;
  --rule: #2F2542 !important;
  --rule-strong: #493B63 !important;
  --ink: #ECE6F6 !important;
  --ink-soft: #B6ABCE !important;
  --ink-mid: #B6ABCE !important;
  --ink-faint: #84769F !important;
  --accent: #A86CF8 !important;
  --accent-strong: #C497FA !important;
  --accent-soft: #2B1842 !important;
  --accent-border: rgba(168, 108, 248, 0.4) !important;
  --good: #5ED995 !important;
  --good-soft: #153424 !important;
  --danger: #E68875 !important;
  --danger-soft: #381E19 !important;
  --focus: #A86CF8 !important;
  --card-bg: var(--paper-raised) !important;
}

/* --------------------------------------------------------------------------
   3. COLORWAY: Monochrome Slate
   -------------------------------------------------------------------------- */
:root[data-color-theme="monochrome"] {
  --paper: #F5F5F5 !important;
  --paper-raised: #FFFFFF !important;
  --paper-inset: #EAEAEA !important;
  --rule: #D2D2D2 !important;
  --rule-strong: #B0B0B0 !important;
  --ink: #151515 !important;
  --ink-soft: #484848 !important;
  --ink-mid: #484848 !important;
  --ink-faint: #787878 !important;
  --accent: #262626 !important;
  --accent-strong: #000000 !important;
  --accent-soft: #E5E5E5 !important;
  --accent-border: rgba(40, 40, 40, 0.35) !important;
  --good: #3A6E4F !important;
  --good-soft: #DDEEE3 !important;
  --danger: #A8382B !important;
  --danger-soft: #F2DCD9 !important;
  --focus: #262626 !important;
  --card-bg: var(--paper-raised) !important;
}

:root[data-color-theme="monochrome"][data-theme="dark"] {
  --paper: #121212 !important;
  --paper-raised: #1C1C1C !important;
  --paper-inset: #0A0A0A !important;
  --rule: #2C2C2C !important;
  --rule-strong: #444444 !important;
  --ink: #EFEFEF !important;
  --ink-soft: #B2B2B2 !important;
  --ink-mid: #B2B2B2 !important;
  --ink-faint: #7B7B7B !important;
  --accent: #E0E0E0 !important;
  --accent-strong: #FFFFFF !important;
  --accent-soft: #282828 !important;
  --accent-border: rgba(224, 224, 224, 0.35) !important;
  --good: #68D391 !important;
  --good-soft: #1B3324 !important;
  --danger: #E28578 !important;
  --danger-soft: #381F1C !important;
  --focus: #E0E0E0 !important;
  --card-bg: var(--paper-raised) !important;
}

/* --------------------------------------------------------------------------
   System & Base Polish
   -------------------------------------------------------------------------- */
:root {
  --os-radius-sm: 6px;
  --os-radius-md: 10px;
  --os-radius-lg: 14px;
  --os-font-display: "Spectral", Georgia, serif;
  --os-font-ui: "Public Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --os-font-mono: "IBM Plex Mono", "SF Mono", Menlo, Consolas, monospace;
}

/* Smooth color switching only during active theme toggles */
html.theme-transition,
html.theme-transition *,
html.theme-transition *:before,
html.theme-transition *:after {
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease !important;
  transition-delay: 0s !important;
}

/* Universal scrollbars respecting current colorway */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--paper-inset);
}
::-webkit-scrollbar-thumb {
  background: var(--rule-strong);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* Accessible focus ring */
*:focus-visible {
  outline: 2px solid var(--accent) !important;
  outline-offset: 2px !important;
}

/* Pro active badge styling */
.pro-active-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-family: var(--os-font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--accent-border);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   OBSCURA OS - UNIVERSAL TOP MINI TOOLBAR
   Accessible everywhere across all 353 tools, calculators, and workspaces.
   ========================================================================== */
#obscuraMiniToolbar,
.obscura-mini-toolbar {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: 38px;
  background: var(--paper-raised);
  border-bottom: 1px solid var(--rule);
  z-index: 9990;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Public Sans", sans-serif;
  font-size: 12px;
  color: var(--ink);
  user-select: none;
  -webkit-user-select: none;
  flex-shrink: 0;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.omt-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
  gap: 12px;
}

.omt-left,
.omt-right,
.omt-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.omt-left {
  gap: 10px;
}

.omt-brand {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 11.5px;
  letter-spacing: 0.05em;
  padding: 3px 6px;
  border-radius: 4px;
  transition: opacity 0.15s ease;
  white-space: nowrap;
}
.omt-brand:hover {
  opacity: 0.8;
}
.omt-brand svg {
  color: var(--accent);
  flex-shrink: 0;
}
.omt-brand-sub {
  color: var(--accent);
  font-weight: 800;
}

.omt-divider {
  width: 1px;
  height: 16px;
  background: var(--rule);
  margin: 0 2px;
  flex-shrink: 0;
}

.omt-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  line-height: 1;
}
.omt-link:hover {
  color: var(--ink);
  background: var(--paper-inset);
}
.omt-link.active {
  color: var(--accent-strong);
  background: var(--accent-soft);
  border-color: var(--accent-border);
  font-weight: 600;
}
.omt-link svg {
  width: 13px;
  height: 13px;
  flex-shrink: 0;
  stroke: currentColor;
}

.omt-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 9px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--ink-soft);
  background: transparent;
  border: 1px solid var(--rule);
  font-size: 11.5px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  line-height: 1;
  transition: all 0.15s ease;
  height: 26px;
  box-sizing: border-box;
}
.omt-action-btn:hover {
  color: var(--ink);
  background: var(--paper-inset);
  border-color: var(--rule-strong);
}
.omt-icon-btn {
  padding: 4px 7px;
}
.omt-action-btn svg {
  stroke: currentColor;
  flex-shrink: 0;
}
.omt-kbd {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: var(--ink-faint);
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1px 4px;
  line-height: 1;
}

/* Light / Dark icon display in theme button */
[data-theme="dark"] .omt-theme-sun {
  display: inline-block !important;
}
[data-theme="dark"] .omt-theme-moon {
  display: none !important;
}
:root:not([data-theme="dark"]) .omt-theme-sun {
  display: none !important;
}
:root:not([data-theme="dark"]) .omt-theme-moon {
  display: inline-block !important;
}

/* Print rule: NEVER print the mini toolbar */
@media print {
  #obscuraMiniToolbar,
  .obscura-mini-toolbar {
    display: none !important;
  }
}

/* ==========================================================================
   HEADER PRO PASS & TIER BADGE
   Targeted styling for #proHeaderBtn, .tier-tag-free, and .tier-upgrade-text
   ========================================================================== */
.btn-pro-pass {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2.5px 8px 2.5px 4px;
  border-radius: 9999px;
  background: var(--paper-inset);
  border: 1px solid var(--rule);
  text-decoration: none;
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-size: 11px;
  line-height: 1.3;
  width: fit-content;
  margin-top: 3px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.btn-pro-pass:hover {
  background: var(--paper-raised);
  border-color: var(--accent-border, var(--rule-strong));
  transform: translateY(-0.5px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

/* Target: CSS selector 2 (.tier-tag-free) */
.tier-tag-free {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 1.5px 6px;
  border-radius: 9999px;
  line-height: 1.2;
}

/* Target: CSS selector 1 (.tier-upgrade-text) */
.tier-upgrade-text {
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-strong);
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.15s ease;
}

.btn-pro-pass:hover .tier-upgrade-text {
  color: var(--accent);
}

/* Pro active state */
.btn-pro-pass.pro-active {
  background: var(--accent-soft);
  border-color: var(--accent-border);
  padding: 3px 9px 3px 7px;
}

.tier-tag-pro {
  font-family: var(--font-mono, "IBM Plex Mono", monospace);
  font-size: 10.5px;
  font-weight: 700;
  color: var(--accent-strong);
  letter-spacing: 0.04em;
}

.pro-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  display: inline-block;
}

/* Responsive collapse for small screens */
@media (max-width: 640px) {
  #obscuraMiniToolbar,
  .obscura-mini-toolbar {
    height: 36px;
  }
  .omt-container {
    padding: 0 8px;
    gap: 6px;
  }
  .omt-brand-name {
    display: none;
  }
  .omt-divider {
    display: none;
  }
  .omt-search-text {
    display: none;
  }
  .omt-kbd {
    display: none;
  }
  .omt-link {
    padding: 4px 7px;
    font-size: 11.5px;
    gap: 4px;
  }
  .omt-action-btn {
    padding: 4px 6px;
  }
}