/* ============================================================
   StaySharp v2 — Premium Dark Glassmorphism Design System
   ============================================================ */

/* --- Google Fonts (loaded in HTML) ---
   Display: JetBrains Mono (metrics/results)
   Body: Inter → replaced by DM Sans for warmth
   ------------------------------------------------ */

:root {
  /* Surfaces */
  --bg-deep: #06080d;
  --bg-main: #0b0e14;
  --bg-surface: rgba(16, 20, 30, 0.75);
  --bg-surface-solid: #10141e;
  --bg-elevated: rgba(22, 28, 42, 0.7);

  /* Borders */
  --border-color: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-focus: rgba(227, 82, 58, 0.5);

  /* Text */
  --text-main: #e8eaf0;
  --text-secondary: #9ca3b4;
  --text-muted: #5e6578;

  /* Accent — Warm Red/Orange gradient endpoints */
  --accent: #e3523a;
  --accent-warm: #ff6b4a;
  --accent-hover: #ff7d5f;
  --accent-glow: rgba(227, 82, 58, 0.2);
  --accent-glow-strong: rgba(227, 82, 58, 0.35);

  /* Functional */
  --success: #34d399;
  --success-glow: rgba(52, 211, 153, 0.15);
  --warning: #fbbf24;

  /* Geometry */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 24px;

  /* Input */
  --input-bg: rgba(255, 255, 255, 0.04);
  --input-bg-hover: rgba(255, 255, 255, 0.06);

  /* Font */
  --font-body: 'DM Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed: 0px;

  /* Safe areas (iPhone) */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);

  /* Timing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-main);
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

/* Damascus steel background substrate */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    url('../img/hero_bg.png') no-repeat top right / cover,
    radial-gradient(ellipse at 20% 50%, rgba(227, 82, 58, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(59, 130, 246, 0.03) 0%, transparent 50%);
  z-index: 0;
  pointer-events: none;
  opacity: 0.22;
  mask-image:
    linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.15) 85%, transparent 100%);
  -webkit-mask-image:
    linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.5) 50%, rgba(0, 0, 0, 0.15) 85%, transparent 100%);
  animation: bgDrift 30s ease-in-out infinite alternate;
}

@keyframes bgDrift {
  0% {
    transform: translate(0, 0) scale(1);
  }

  100% {
    transform: translate(-2%, -1%) scale(1.03);
  }
}

/* Noise texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.02'/%3E%3C/svg%3E");
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

/* === LAYOUT === */
.app-container {
  display: flex;
  height: 100%;
  height: 100dvh;
  position: relative;
  z-index: 1;
}

/* === SIDEBAR === */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-surface-solid);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.4s var(--ease-out-expo),
    opacity 0.3s ease;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  padding-top: var(--safe-top);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  transform: translateX(0);
}

.sidebar.collapsed {
  transform: translateX(-100%);
  pointer-events: none;
}

.sidebar.collapsed .logo,
.sidebar.collapsed .nav-links,
.sidebar.collapsed .sidebar-tools {
  opacity: 0;
  pointer-events: none;
}

/* Logo */
.logo {
  padding: 28px 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: opacity 0.3s ease;
}

.logo h2 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.3px;
  background: linear-gradient(135deg, var(--text-main), var(--accent-warm));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

/* Hamburger / Sidebar Toggle */
.sidebar-toggle {
  position: fixed;
  top: 18px;
  left: 18px;
  z-index: 200;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  padding-top: var(--safe-top);
}

.sidebar-toggle:hover {
  background: var(--bg-elevated);
  color: var(--text-main);
  border-color: var(--border-hover);
  box-shadow: 0 0 16px rgba(227, 82, 58, 0.12);
}

/* Shimmer sweep on hover */
.sidebar-toggle::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.06) 50%, transparent 60%);
  transform: translateX(-100%);
  transition: none;
}

.sidebar-toggle:hover::after {
  animation: shimmerBtn 0.6s ease forwards;
}

@keyframes shimmerBtn {
  to {
    transform: translateX(100%);
  }
}

.sidebar-toggle svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s var(--ease-spring);
}

.sidebar-toggle.active svg {
  transform: rotate(90deg);
}

/* Nav Links */
.nav-links {
  list-style: none;
  padding: 0 14px;
  flex: 1;
  overflow-y: auto;
  transition: opacity 0.3s ease;
}

.nav-links li {
  padding: 12px 16px;
  margin-bottom: 4px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 18px;
  transition: all 0.2s ease;
  user-select: none;
  white-space: nowrap;
  position: relative;
}

.nav-links li:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

.nav-links li.active {
  background: var(--accent-glow);
  color: var(--accent-warm);
}

.nav-links li.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 20px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--accent), var(--accent-warm));
  animation: accentPulse 2s ease-in-out infinite;
}

@keyframes accentPulse {

  0%,
  100% {
    height: 20px;
    opacity: 1;
  }

  50% {
    height: 28px;
    opacity: 0.7;
  }
}

.nav-links li svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-links li.active svg {
  opacity: 1;
}

/* Drag-and-drop styles */
.nav-links li.dragging {
  opacity: 0.4;
  transform: scale(0.95);
}

.nav-links li.drag-over {
  border-top: 2px solid var(--accent-warm);
  margin-top: -2px;
}

.nav-links li .drag-handle {
  opacity: 0;
  cursor: grab;
  color: var(--text-muted);
  transition: opacity 0.2s ease;
  margin-left: auto;
  flex-shrink: 0;
  touch-action: none;
}

.nav-links li:hover .drag-handle {
  opacity: 0.6;
}

.nav-links li .drag-handle:hover {
  opacity: 1;
  color: var(--text-secondary);
}

.sidebar-tools {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 14px 14px;
  border-top: 1px solid var(--border-color);
}

.sidebar-tool-btn {
  width: 100%;
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.2px;
  padding: 10px 12px;
  border-radius: 14px;
  border-color: rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015));
}

.sidebar-tool-btn:hover {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-main);
}

.sidebar-tool-btn:disabled {
  cursor: default;
  opacity: 0.75;
}

.sidebar-tool-btn::after,
.status-action-btn::after {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 22px;
  font-size: 20px;
  opacity: 0.8;
  line-height: 1;
  transform-origin: center;
}

#btn-reset-db-cache::after {
  content: '↻';
}

#btn-hard-refresh::after {
  content: '↻';
}

.sidebar-tool-btn.is-loading::after,
.status-action-btn.is-loading::after {
  content: '';
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2.4px solid rgba(255, 255, 255, 0.18);
  border-top-color: #ff9b56;
  border-right-color: #ff6f4a;
  box-shadow: 0 0 0 1px rgba(255, 120, 64, 0.22),
    0 0 10px rgba(255, 98, 58, 0.45),
    inset 0 0 6px rgba(255, 171, 120, 0.35);
  opacity: 1;
  animation: syncSpin 0.66s linear infinite, syncPulse 1.1s ease-in-out infinite;
}

#btn-reset-db-cache.is-success::after,
#btn-hard-refresh.is-success::after,
.status-action-btn.is-success::after {
  content: '✓';
  color: var(--success);
  opacity: 1;
}

#btn-reset-db-cache.is-error::after,
#btn-hard-refresh.is-error::after,
.status-action-btn.is-error::after {
  content: '!';
  color: #ff8f80;
  opacity: 1;
}

.status-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 124px;
  font-size: 14px;
  font-weight: 600;
}

.status-action-btn::after {
  content: '↻';
}

@keyframes syncSpin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes syncPulse {
  0%,
  100% {
    filter: brightness(1) saturate(1.05);
  }
  50% {
    filter: brightness(1.2) saturate(1.25);
  }
}

/* === MAIN CONTENT === */
.content-area {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 24px 28px;
  padding-top: calc(24px + var(--safe-top));
  padding-bottom: calc(24px + var(--safe-bottom));
  position: relative;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

/* Custom scrollbar */
.content-area::-webkit-scrollbar {
  width: 6px;
}

.content-area::-webkit-scrollbar-track {
  background: transparent;
}

.content-area::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
}

.content-area::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* === SIDEBAR OVERLAY (global) === */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 95;
  /* above app-container(1), below sidebar(100) */
  opacity: 1;
  transition: opacity 0.3s ease;
  /* No backdrop-filter — pure dark overlay without blur */
}

.sidebar-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

/* === VIEWS === */
.view {
  display: none;
  animation: viewEnter 0.5s var(--ease-out-expo);
}

.view.active {
  display: block;
}

@keyframes viewEnter {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Section Header */
.section-header {
  margin-bottom: 16px;
  padding-left: 48px;
  /* clear hamburger button */
  position: relative;
}

.section-header h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

#db-view .section-header {
  margin-bottom: 12px;
}

#db-view .section-header h1 {
  font-size: 30px;
  line-height: 1.12;
  margin-bottom: 0;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

/* (Hero bg is now handled globally by body::before) */


.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.section-header-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.section-header.flex-between {
  flex-wrap: wrap;
}

.history-pull-indicator,
.db-pull-indicator {
  display: flex;
  justify-content: center;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin: -2px 0 10px;
  transition: max-height 0.2s ease, opacity 0.2s ease;
}

.history-pull-indicator.is-visible,
.db-pull-indicator.is-visible {
  opacity: 1;
}

.history-pull-indicator-inner,
.db-pull-indicator-inner {
  width: fit-content;
  max-width: min(100%, 320px);
  min-width: 220px;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(14, 20, 32, 0.62);
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.2px;
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
}

.history-pull-indicator.is-ready .history-pull-indicator-inner,
.db-pull-indicator.is-ready .db-pull-indicator-inner {
  border-color: rgba(227, 82, 58, 0.3);
  color: var(--accent-warm);
}

.history-pull-indicator.is-loading .history-pull-indicator-inner,
.db-pull-indicator.is-loading .db-pull-indicator-inner {
  color: var(--text-main);
  border-color: rgba(227, 82, 58, 0.28);
  box-shadow: inset 0 0 0 1px rgba(227, 82, 58, 0.08);
}

.history-pull-indicator.is-loading .history-pull-indicator-inner::after,
.db-pull-indicator.is-loading .db-pull-indicator-inner::after {
  content: '';
  width: 14px;
  height: 14px;
  margin-left: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.16);
  border-top-color: var(--accent-warm);
  border-right-color: rgba(255, 189, 89, 0.9);
  box-shadow: 0 0 10px rgba(227, 82, 58, 0.25);
  animation: actionSpin 0.75s linear infinite, syncPulse 1.4s ease-in-out infinite;
}

.history-pull-indicator.is-success .history-pull-indicator-inner,
.history-pull-indicator.is-error .history-pull-indicator-inner,
.db-pull-indicator.is-success .db-pull-indicator-inner,
.db-pull-indicator.is-error .db-pull-indicator-inner {
  color: var(--text-main);
}

.history-pull-indicator.is-success .history-pull-indicator-inner::after,
.history-pull-indicator.is-error .history-pull-indicator-inner::after,
.db-pull-indicator.is-success .db-pull-indicator-inner::after,
.db-pull-indicator.is-error .db-pull-indicator-inner::after {
  margin-left: 10px;
  font-size: 14px;
  font-weight: 800;
}

.history-pull-indicator.is-success .history-pull-indicator-inner::after,
.db-pull-indicator.is-success .db-pull-indicator-inner::after {
  content: '✓';
  color: var(--success);
}

.history-pull-indicator.is-error .history-pull-indicator-inner::after,
.db-pull-indicator.is-error .db-pull-indicator-inner::after {
  content: '!';
  color: var(--accent-warm);
}

/* === PANELS / CARDS === */
.panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.03);
  position: relative;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s var(--ease-out-expo);
}

.panel:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

/* Glow accent bar on result */
.glow {
  position: relative;
  overflow: hidden;
}

/* Result panel — clean surface, no background image */


.glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-warm), transparent);
  animation: glowPulse 3s ease-in-out infinite;
}

/* Rotating border removed — was distracting */

@keyframes glowPulse {

  0%,
  100% {
    opacity: 0.6;
  }

  50% {
    opacity: 1;
  }
}

/* Grid */
.grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 900px) {
  .grid-layout {
    grid-template-columns: 1fr;
  }
}

.vertical-layout {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* === HEADINGS === */
h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
}

h3 .icon-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-glow), rgba(255, 107, 74, 0.15));
  position: relative;
  overflow: hidden;
}

h3 .icon-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, 0.1) 50%, transparent 60%);
  transform: translateX(-100%);
  animation: shimmerIcon 4s ease-in-out infinite;
}

@keyframes shimmerIcon {

  0%,
  80% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}

h3 .icon-wrap svg {
  width: 16px;
  height: 16px;
  stroke: var(--accent-warm);
  position: relative;
  z-index: 1;
}

h4 {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 14px;
  font-weight: 600;
}

/* === TABS === */
.group-tabs {
  display: flex;
  background: var(--input-bg);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 22px;
  border: 1px solid var(--border-color);
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 12px 8px;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 700;
  font-size: 22px;
  line-height: 1.1;
  font-family: var(--font-body);
  transition: all 0.25s ease;
  position: relative;
}

.tab-btn small {
  font-weight: 400;
  opacity: 0.6;
  font-size: 11px;
}

.tab-btn.active {
  background: var(--bg-main);
  color: var(--text-main);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.tab-btn:hover:not(.active) {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
}

/* === INPUTS === */
.input-row {
  display: flex;
  gap: 12px;
}

.input-row .input-group {
  flex: 1;
}

.input-row .input-group-slot {
  flex: 1;
}

.input-row .input-group-slot.slot-collapsed {
  display: none;
}

/* Honing: keep row 1 and row 2 field widths identical */
#calculator-form.mode-honing .honing-row-1,
#calculator-form.mode-honing .honing-row-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.input-group {
  margin-bottom: 8px;
}

/* Keep three-column Honing constants row compact and stable on narrow screens */
.honing-row-3 {
  gap: 8px;
}

.honing-row-3 label {
  flex-wrap: nowrap;
  column-gap: 3px;
  row-gap: 0;
  font-size: 12px;
}

.honing-row-3 .unit {
  white-space: nowrap;
}

.honing-row-3 .info-icon {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  font-size: 10px;
}

label {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  column-gap: 4px;
  row-gap: 2px;
  font-size: 14px;
  font-weight: 600;
  color: #cdd2de;
  /* Сделал лейблы капельку светлее, чтобы легче читалось */
  margin-bottom: 6px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.unit {
  color: var(--text-muted);
  font-weight: 400;
  text-transform: none;
}

input[type="number"],
input[type="text"] {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 22px;
  font-weight: 600;
  transition: all 0.2s ease;
}

input[type="number"]:hover,
input[type="text"]:hover {
  background: var(--input-bg-hover);
  border-color: var(--border-hover);
}

input[type="number"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(227, 82, 58, 0.04);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input[type="number"]::placeholder,
input[type="text"]::placeholder,
textarea::placeholder {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

input[type="number"]::-webkit-input-placeholder,
input[type="text"]::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

/* Keep machine/default constants visually quieter */
#input-c1,
#input-c2,
#input-c3-c4,
#input-fvb-s,
#input-c5-c6 {
  font-size: 16px;
}

/* Compact numeric fields */
input.compact-num {
  max-width: 90px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 18px;
  padding: 11px 8px;
  letter-spacing: 0.5px;
  font-weight: 600;
}

/* Textarea for comments */
textarea {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  transition: all 0.2s ease;
  resize: vertical;
  min-height: 46px;
  line-height: 1.4;
}

textarea:hover {
  background: var(--input-bg-hover);
  border-color: var(--border-hover);
}

textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(227, 82, 58, 0.04);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Hide number spinners */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

.divider {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-color), transparent);
  margin: 12px 0;
}

.hidden {
  display: none !important;
}

/* === RESULT DISPLAY === */
.metric-container {
  text-align: center;
  padding: 2px 0;
}

.metric-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 60px;
  font-weight: 700;
  letter-spacing: -3px;
  color: var(--text-main);
  line-height: 1;
  margin: 4px 0;
  position: relative;
  text-shadow: 0 0 60px var(--accent-glow-strong),
    0 0 120px rgba(227, 82, 58, 0.1);
}

/* Radial glow behind the number */
.metric-value::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 150px;
  height: 150px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-glow-strong) 0%, transparent 70%);
  border-radius: 50%;
  z-index: -1;
  animation: breathe 4s ease-in-out infinite;
  pointer-events: none;
}

@keyframes breathe {

  0%,
  100% {
    opacity: 0.4;
    transform: translate(-50%, -50%) scale(1);
  }

  50% {
    opacity: 0.7;
    transform: translate(-50%, -50%) scale(1.15);
  }
}

.metric-unit {
  font-size: 16px;
  color: var(--accent-warm);
  font-weight: 600;
  letter-spacing: 1px;
}

/* Predict view */
.predict-panel {
  position: relative;
  overflow: visible;
}

.predict-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(227, 82, 58, 0.08), transparent 34%),
    radial-gradient(circle at bottom left, rgba(255, 189, 89, 0.06), transparent 32%);
  pointer-events: none;
}

.predict-panel > * {
  position: relative;
  z-index: 1;
}

.predict-intro {
  margin-bottom: 18px;
}

.predict-lead {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.55;
  margin-bottom: 12px;
}

.predict-step-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.predict-step-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.35px;
  text-transform: uppercase;
}

.predict-grid {
  display: grid;
  gap: 12px;
}

.predict-grid-top {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.predict-grid-mid {
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.75fr) minmax(0, 0.75fr);
}

.predict-grid-bottom {
  grid-template-columns: minmax(0, 1fr) minmax(0, 220px);
  align-items: end;
  margin-top: 12px;
}

.predict-field-wide {
  min-width: 0;
}

.predict-autocomplete {
  position: relative;
}

.predict-autocomplete input[type="text"] {
  font-size: 18px;
}

.predict-suggest {
  position: relative;
  margin-top: 8px;
  max-height: min(220px, 30dvh);
  overflow-y: auto;
  padding: 8px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(14, 20, 32, 0.985), rgba(9, 14, 24, 0.99));
  box-shadow:
    0 18px 38px rgba(0, 0, 0, 0.44),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}

.predict-suggest-item {
  width: 100%;
  display: block;
  border: 0;
  background: transparent;
  color: rgba(241, 245, 255, 0.92);
  text-align: left;
  border-radius: 12px;
  padding: 11px 12px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.predict-suggest-item:hover,
.predict-suggest-item.is-active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  transform: translateX(1px);
}

.predict-suggest-item.is-unknown {
  color: var(--text-muted);
  font-style: italic;
}

.predict-actions {
  display: flex;
  align-items: stretch;
}

select.predict-select {
  width: 100%;
  min-height: 44px;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 18px) calc(50% - 3px),
    calc(100% - 12px) calc(50% - 3px);
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

select.predict-select:hover {
  background-color: var(--input-bg-hover);
  border-color: var(--border-hover);
}

select.predict-select:focus {
  outline: none;
  border-color: var(--accent);
  background-color: rgba(227, 82, 58, 0.04);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.predict-reset-btn {
  width: 100%;
  min-height: 44px;
}

.predict-output {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.predict-result-head {
  margin-bottom: 16px;
}

.predict-result-head h3 {
  color: var(--accent-warm);
  margin-bottom: 8px;
}

.predict-result-text {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-secondary);
}

.predict-metrics-grid {
  margin-bottom: 22px;
}

.predict-apply-btn {
  width: 100%;
}

.predict-apply-btn:disabled {
  opacity: 0.45;
  cursor: default;
  box-shadow: none;
}

.predict-apply-btn:disabled:hover {
  transform: none;
}

/* Metric cards for predict */
.metric-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: all 0.25s ease;
}

.metric-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.metric-card .metric-value {
  font-size: 40px;
  letter-spacing: -2px;
}

/* === BUTTONS === */
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--accent), var(--accent-warm));
  color: white;
  border: none;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), transparent);
  opacity: 0;
  transition: opacity 0.25s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px var(--accent-glow-strong);
}

.btn-primary:hover::before {
  opacity: 1;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary.is-success-flash {
  color: #fff7f2;
  box-shadow:
    0 10px 26px rgba(227, 82, 58, 0.24),
    0 0 0 1px rgba(255, 255, 255, 0.08),
    inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.btn-primary.is-success-flash::before {
  opacity: 1;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.22), transparent 58%);
}

.save-feedback {
  min-height: 28px;
  margin-top: 10px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  pointer-events: none;
}

.save-feedback-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(52, 211, 153, 0.2);
  background: rgba(52, 211, 153, 0.08);
  color: #bdf7df;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  transition: opacity 0.22s ease, transform 0.22s var(--ease-spring);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.05),
    0 6px 20px rgba(18, 34, 27, 0.24);
}

.save-feedback-chip::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7df5c5, #34d399);
  box-shadow: 0 0 10px rgba(52, 211, 153, 0.32);
}

.save-feedback.is-visible .save-feedback-chip {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.btn-secondary {
  background: var(--input-bg);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 500;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-hover);
  color: var(--text-main);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* === TABLES === */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  background: var(--bg-surface-solid);
  z-index: 2;
}

.data-table td {
  padding: 12px 14px;
  font-size: 13px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
}

.data-table tr {
  transition: background 0.15s ease;
}

.data-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

/* Search */
.search-bar {
  margin-bottom: 20px;
}

#search-knives::placeholder {
  font-size: 14px;
  font-weight: 500;
}

#search-knives::-webkit-input-placeholder {
  font-size: 14px;
  font-weight: 500;
}

/* Tags */
.tag-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  white-space: nowrap;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.tag-red {
  color: var(--accent-warm);
  background: var(--accent-glow);
}

.tag-green {
  color: var(--success);
  background: var(--success-glow);
}

/* Action buttons in table */
.del-btn {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 5px 10px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 12px;
  font-family: var(--font-body);
}

.del-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* === TOOLTIPS & INFO ICONS === */
.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 10px;
  cursor: pointer;
  vertical-align: middle;
  transition: all 0.2s ease;
  font-weight: 700;
}

.info-icon:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
  transform: scale(1.1);
}

.schema-btn {
  padding: 6px 12px;
  font-size: 12px;
}

/* === ANIMATIONS === */
@keyframes pulseHighlight {
  0% {
    box-shadow: 0 0 0 0px var(--accent-glow);
  }

  50% {
    box-shadow: 0 0 0 4px var(--accent-glow-strong);
  }

  100% {
    box-shadow: 0 0 0 0px transparent;
  }
}

.highlight-pulse {
  animation: pulseHighlight 1s ease-out;
  border-color: var(--accent) !important;
}

/* Stagger animation for children */
@keyframes staggerIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.view.active .panel {
  animation: staggerIn 0.4s var(--ease-out-expo) both;
}

.view.active .panel:nth-child(2) {
  animation-delay: 0.08s;
}

.view.active .panel:nth-child(3) {
  animation-delay: 0.16s;
}

/* === MODAL === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 1;
  transition: opacity 0.3s ease;
  padding: var(--safe-top) var(--safe-right) var(--safe-bottom) var(--safe-left);
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
  display: flex !important;
}

.modal-content {
  background: var(--bg-surface-solid);
  width: 92%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  border-radius: var(--radius-xl);
  position: relative;
  padding: 28px;
  transform: translateY(0) scale(1);
  transition: transform 0.3s var(--ease-out-expo);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5),
    0 0 0 1px var(--border-color);
  border: 1px solid var(--border-color);
}

.modal-overlay.hidden .modal-content {
  transform: translateY(20px) scale(0.96);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--accent);
}

#modal-title {
  margin-bottom: 16px;
  font-size: 20px;
  font-weight: 700;
  padding-right: 40px;
}

.modal-body {
  color: var(--text-secondary);
  line-height: 1.7;
  font-size: 14px;
}

.modal-body img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin-top: 12px;
  border: 1px solid var(--border-color);
}

.app-dialog-content {
  max-width: 420px;
  padding: 24px;
}

#app-dialog-title {
  margin-bottom: 12px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.app-dialog-message {
  margin-bottom: 18px;
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 14px;
}

.app-dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.app-dialog-actions .btn-primary,
.app-dialog-actions .btn-secondary {
  min-width: 112px;
}

.runtime-notice {
  position: fixed;
  right: 16px;
  z-index: 10001;
  max-width: min(360px, calc(100vw - 32px));
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(180deg, rgba(18, 24, 36, 0.94), rgba(12, 16, 26, 0.92));
  color: var(--text-main);
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  font-size: 14px;
  line-height: 1.5;
  font-weight: 600;
  letter-spacing: 0.1px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.26s ease, transform 0.26s ease;
}

.runtime-notice::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.03), transparent 45%);
}

.runtime-notice.runtime-notice--mobile {
  left: 16px;
  right: 16px;
  max-width: none;
}

.runtime-notice.runtime-notice--warn {
  border-color: rgba(251, 191, 36, 0.26);
  background: linear-gradient(180deg, rgba(48, 35, 8, 0.95), rgba(29, 20, 6, 0.92));
  color: #fde68a;
}

.runtime-notice.runtime-notice--success {
  border-color: rgba(52, 211, 153, 0.22);
  background: linear-gradient(180deg, rgba(15, 31, 25, 0.95), rgba(10, 22, 18, 0.92));
  color: #ecfdf5;
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.36), 0 0 18px rgba(52, 211, 153, 0.08);
}

.runtime-notice.runtime-notice--info {
  border-color: rgba(255, 255, 255, 0.12);
}

/* === SCHEMA PAGE === */
.schemas-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  /* Fill remaining viewport after header */
  height: calc(100vh - 120px);
  min-height: 300px;
}

@media (max-width: 900px) {
  .schemas-grid {
    grid-template-columns: 1fr;
    height: auto;
  }
}

.schema-card {
  position: relative;
  padding: 12px !important;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.schema-label {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-warm);
  background: rgba(6, 8, 13, 0.75);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(8px);
}

.schema-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.3s ease;
  /* Dark-adapt light diagrams */
  filter: invert(0.88) hue-rotate(180deg) brightness(0.85) contrast(1.15);
  opacity: 0.9;
}

.schema-image:hover {
  transform: scale(1.01);
  border-color: var(--accent);
  box-shadow: 0 8px 24px var(--accent-glow);
  opacity: 1;
  filter: invert(0.88) hue-rotate(180deg) brightness(0.9) contrast(1.2);
}

.pattern-bg {
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 20px 20px;
}

.text-muted {
  color: var(--text-secondary);
}

/* === EMPTY STATE === */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  animation: fadeInUp 0.6s ease;
}

.empty-state-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  max-width: 360px;
  margin: 0 auto;
}

.empty-state-copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.empty-state-media {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: min(100%, 360px);
  height: clamp(180px, 38vw, 250px);
  overflow: hidden;
  border-radius: 22px;
  background: rgba(8, 12, 20, 0.48);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 12px 32px rgba(0, 0, 0, 0.18);
}

.empty-state-img {
  width: 100%;
  max-width: none;
  height: auto;
  object-fit: contain;
  opacity: 0.7;
  filter: drop-shadow(0 0 30px rgba(227, 82, 58, 0.15));
  transform: translateY(-12%) scale(1.08);
  transform-origin: center top;
  animation: breathe 4s ease-in-out infinite;
}

.empty-state-inner h3 {
  color: var(--text-main);
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 0;
}

.empty-state-inner p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

#empty-history {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(420px, 58vh, 680px);
  padding: 28px 20px 36px;
}

#empty-history .empty-state-inner {
  width: min(100%, 520px);
  max-width: none;
  gap: 20px;
}

#empty-history .empty-state-img {
  display: block;
  opacity: 0.82;
  margin: 0;
}

@media (min-width: 960px) {
  #empty-history {
    min-height: 0;
    padding: 22px 28px 26px;
  }

  #empty-history .empty-state-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: min(100%, 500px);
    gap: 16px;
  }

  #empty-history .empty-state-media {
    width: min(100%, 460px);
    height: clamp(180px, 16vw, 220px);
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(8, 12, 20, 0.16)),
      url('../img/empty_state.png') no-repeat center 22% / 100% auto,
      rgba(8, 12, 20, 0.5);
  }

  #empty-history .empty-state-img {
    display: none;
  }

  #empty-history .empty-state-copy {
    align-items: center;
    text-align: center;
    gap: 14px;
  }

  #empty-history .empty-state-inner h3 {
    margin-top: 0;
    font-size: clamp(26px, 2vw, 34px);
    line-height: 1.08;
  }

  #empty-history .empty-state-inner p {
    max-width: 460px;
    font-size: 15px;
    line-height: 1.6;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === RESPONSIVE — MOBILE FIRST (iPhone) === */

/* Tablets */
@media (max-width: 900px) {
  .content-area {
    padding: 24px 20px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .app-container {
    flex-direction: column;
    overflow: visible;
  }

  body {
    overflow-y: auto;
    height: auto;
  }

  /* Sidebar becomes overlay on mobile */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 260px;
    min-width: 260px;
    z-index: 150;
    transform: translateX(0);
    transition: transform 0.35s var(--ease-out-expo);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.3);
  }

  .sidebar.collapsed {
    transform: translateX(-100%);
    width: 260px;
    min-width: 260px;
  }

  .sidebar.collapsed .logo,
  .sidebar.collapsed .nav-links,
  .sidebar.collapsed .sidebar-tools {
    opacity: 1;
    pointer-events: auto;
  }

  .sidebar-toggle {
    top: 10px;
    left: 10px;
    width: 34px;
    height: 34px;
  }

  /* Compact content area */
  .content-area {
    padding: 10px 14px;
    padding-top: calc(48px + var(--safe-top));
    padding-bottom: calc(16px + var(--safe-bottom));
    min-height: 100vh;
    min-height: 100dvh;
  }

  /* Compact headers */
  .section-header {
    margin-bottom: 24px;
    padding-left: 40px;
  }

  .section-header h1 {
    font-size: 28px;
    margin-bottom: 2px;
  }

  #db-view .section-header {
    margin-bottom: 10px;
  }

  #db-view .section-header h1 {
    font-size: 24px;
    margin-bottom: 0;
    line-height: 1.15;
  }

  .section-header p {
    font-size: 17px;
    line-height: 1.3;
  }

  .status-action-btn {
    min-width: 106px;
    font-size: 13px;
  }

  .predict-lead {
    font-size: 13px;
    margin-bottom: 10px;
  }

  .predict-step-chip {
    font-size: 10px;
    min-height: 28px;
    padding: 5px 8px;
  }

  .predict-grid-top,
  .predict-grid-mid,
  .predict-grid-bottom {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .predict-grid-bottom {
    margin-top: 10px;
  }

  .predict-suggest {
    max-height: min(160px, 24dvh);
    margin-top: 7px;
    padding: 7px;
    border-radius: 14px;
  }

  .predict-suggest-item {
    padding: 10px 11px;
    font-size: 14px;
  }

  .predict-output {
    margin-top: 18px;
    padding-top: 16px;
  }

  .predict-result-text {
    font-size: 14px;
  }

  select.predict-select {
    min-height: 42px;
    font-size: 14px;
  }

  /* Compact panels */
  .panel {
    padding: 14px;
    border-radius: var(--radius-md);
  }

  /* Headings */
  h3 {
    font-size: 22px;
    margin-bottom: 8px;
  }

  /* Inputs */
  .input-group {
    margin-bottom: 6px;
  }

  label {
    font-size: 14px;
    margin-bottom: 4px;
    letter-spacing: 0px;
  }

  input[type="number"],
  input[type="text"] {
    padding: 7px 8px;
    font-size: 22px;
    font-weight: 600;
  }

  textarea {
    padding: 7px 9px;
    font-size: 14px;
    min-height: 44px;
  }

  /* Input rows stay horizontal on mobile */
  .input-row {
    flex-direction: row;
    gap: 8px;
  }

  .honing-row-3 {
    gap: 6px;
  }

  .honing-row-3 label {
    font-size: 11px;
  }

  .divider {
    margin: 8px 0;
  }

  .grid-layout {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* Result */
  .metric-container {
    padding: 2px 0;
  }

  .metric-label {
    font-size: 14px;
  }

  .metric-value {
    font-size: 40px;
    margin: 2px 0;
  }

  .metric-unit {
    font-size: 15px;
  }

  .metric-card .metric-value {
    font-size: 32px;
  }

  /* Tables */
  .data-table th,
  .data-table td {
    padding: 10px 8px;
    font-size: 15px;
  }

  /* Buttons */
  .btn-primary,
  .btn-secondary {
    width: 100%;
    text-align: center;
    font-size: 16px;
    padding: 14px;
  }

  /* Tabs */
  .tab-btn {
    padding: 10px 14px;
    font-size: 20px;
  }

  /* Info icons */
  .info-icon {
    width: 22px;
    height: 22px;
    font-size: 12px;
  }

  /* Tighter vertical layout gap */
  .vertical-layout {
    gap: 10px;
  }
}

/* iPhone SE / small screens */
@media (max-width: 375px) {
  .content-area {
    padding: 8px 10px;
    padding-top: calc(44px + var(--safe-top));
  }

  .section-header h1 {
    font-size: 22px;
  }

  .metric-value {
    font-size: 38px;
  }

  .panel {
    padding: 10px;
  }

  input[type="number"],
  input[type="text"] {
    padding: 7px;
    font-size: 22px;
    font-weight: 600;
  }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  body::before {
    animation: none;
  }
}

/* === FOCUS VISIBLE (keyboard a11y) === */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:focus:not(:focus-visible),
input:focus:not(:focus-visible) {
  outline: none;
}