/* =========================================================
   DevBox Theme — 开发者工具箱 深色大气主题
   ========================================================= */

:root {
  --bg: #07080d;
  --bg-elevated: #0e1017;
  --bg-deep: #05060a;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --ink: #e8eaf2;
  --ink-strong: #ffffff;
  --muted: #8b90a5;
  --muted-dim: #5c6178;
  --accent: #6c7cff;
  --accent-2: #22d3ee;
  --accent-3: #a78bfa;
  --success: #34d399;
  --danger: #f87171;
  --warning: #fbbf24;
  --glow: rgba(108, 124, 255, 0.35);
  --glow-2: rgba(34, 211, 238, 0.25);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(108, 124, 255, 0.25);
  --font: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, sans-serif;
  --mono: "Cascadia Code", Consolas, "SF Mono", Menlo, "Courier New", monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --nav-h: 64px;
}

/* ---------- Reset / Base ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle grid texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
  pointer-events: none;
}

::selection {
  background: rgba(108, 124, 255, 0.35);
  color: #fff;
}

a {
  color: var(--accent-2);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
a:hover {
  color: #67e8f9;
  text-decoration: none;
}

img {
  max-width: 100%;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-deep);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  border: 2px solid var(--bg-deep);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  z-index: 2000;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 12px var(--glow);
  transition: width 0.08s linear;
}

/* ---------- Navbar ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(7, 8, 13, 0.72);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-nav.is-scrolled {
  background: rgba(7, 8, 13, 0.92);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.site-nav__inner {
  max-width: 1120px;
  margin: 0 auto;
  height: 100%;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.site-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-strong);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.site-nav__brand:hover {
  color: var(--ink-strong);
}

.site-nav__logo {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 4px 16px var(--glow);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__links a {
  display: block;
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.site-nav__links a:hover,
.site-nav__links a.active {
  color: var(--ink-strong);
  background: var(--surface);
  text-decoration: none;
}

.site-nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(108, 124, 255, 0.45);
  background: rgba(108, 124, 255, 0.15);
  color: var(--ink-strong);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  margin-left: auto;
  padding: 0;
  position: relative;
  flex-shrink: 0;
}

/* CSS hamburger — no icon font dependency */
.site-nav__toggle-bars,
.site-nav__toggle-bars::before,
.site-nav__toggle-bars::after {
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink-strong);
  position: relative;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.site-nav__toggle-bars::before,
.site-nav__toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.site-nav__toggle-bars::before {
  top: -5px;
}

.site-nav__toggle-bars::after {
  top: 5px;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bars {
  background: transparent;
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bars::before {
  top: 0;
  transform: rotate(45deg);
}

.site-nav__toggle[aria-expanded="true"] .site-nav__toggle-bars::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-nav__toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .site-nav__toggle {
    display: inline-flex !important;
    z-index: 5;
  }

  .site-nav__links {
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 16px 16px;
    background: rgba(10, 12, 18, 0.96);
    border-bottom: 1px solid var(--border);
    display: none;
  }

  .site-nav__links.is-open {
    display: flex;
  }

  .site-nav__inner {
    position: relative;
  }
}

/* ---------- Layout helpers ---------- */
.page-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-shell--narrow {
  max-width: 960px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: min(78vh, 720px);
  display: flex;
  align-items: center;
  padding: 72px 0 48px;
  overflow: hidden;
}

.hero__orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  will-change: transform;
}

.hero__orb--1 {
  width: 420px;
  height: 420px;
  top: -12%;
  left: -8%;
  background: radial-gradient(circle, rgba(108, 124, 255, 0.75), transparent 70%);
  animation: orb-float-1 18s ease-in-out infinite;
}

.hero__orb--2 {
  width: 380px;
  height: 380px;
  top: 10%;
  right: -6%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.55), transparent 70%);
  animation: orb-float-2 22s ease-in-out infinite;
}

.hero__orb--3 {
  width: 300px;
  height: 300px;
  bottom: -10%;
  left: 35%;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.45), transparent 70%);
  animation: orb-float-3 16s ease-in-out infinite;
}

@keyframes orb-float-1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.08); }
}
@keyframes orb-float-2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-50px, 50px) scale(1.1); }
}
@keyframes orb-float-3 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.12); }
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}

.hero__badge i {
  color: var(--accent-2);
}

.hero__title {
  margin: 0 0 16px;
  font-size: clamp(36px, 6vw, 60px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink-strong);
}

.hero__title .grad {
  background: linear-gradient(105deg, #c4b5fd 0%, var(--accent) 40%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__subtitle {
  margin: 0 auto 28px;
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.7;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-family: var(--mono);
}

.meta-chip i {
  color: var(--accent-2);
  font-size: 12px;
}

/* ---------- Category section ---------- */
.category {
  padding: 28px 0 8px;
  scroll-margin-top: calc(var(--nav-h) + 16px);
}

.category__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.category__icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(108, 124, 255, 0.2), rgba(34, 211, 238, 0.15));
  border: 1px solid var(--border-strong);
  color: var(--accent-2);
  font-size: 15px;
  flex-shrink: 0;
}

.category__title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--ink-strong);
  letter-spacing: -0.01em;
}

.category__count {
  margin-left: auto;
  color: var(--muted-dim);
  font-size: 13px;
  font-family: var(--mono);
}

/* ---------- Tool cards ---------- */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

@media (max-width: 900px) {
  .tool-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 560px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 180px;
  padding: 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.015) 50%, transparent 100%),
    rgba(14, 16, 23, 0.65);
  color: inherit;
  text-decoration: none !important;
  overflow: hidden;
  transition:
    transform 0.35s var(--ease),
    border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

.tool-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%), rgba(108, 124, 255, 0.12), transparent 45%);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}

.tool-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108, 124, 255, 0.4);
  box-shadow: var(--shadow-hover);
  color: inherit;
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.tool-card--soon {
  border-style: dashed;
  opacity: 0.55;
  pointer-events: none;
}

.tool-card__icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  background: linear-gradient(135deg, rgba(108, 124, 255, 0.25), rgba(34, 211, 238, 0.12));
  border: 1px solid rgba(108, 124, 255, 0.25);
  color: #a5b4fc;
  font-size: 16px;
}

.tool-card__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 650;
  color: var(--ink-strong);
  letter-spacing: -0.01em;
}

.tool-card__desc {
  margin: 0;
  flex: 1;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tool-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 600;
  transition: gap 0.25s var(--ease), color 0.25s var(--ease);
}

.tool-card:hover .tool-card__cta {
  gap: 10px;
  color: #67e8f9;
}

.tool-card__cta--soon {
  color: var(--muted-dim);
}

/* ---------- Tool page shell ---------- */
main.page-shell {
  padding-top: 8px;
  padding-bottom: 24px;
}

.home-main {
  max-width: none;
  padding: 0;
}

.tool-page-header {
  text-align: center;
  padding: 40px 0 28px;
}

.tool-page-header h1,
.tool-page-header .app-title,
main.page-shell > .text-center .app-title,
main.page-shell > .text-center h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 4vw, 34px);
  font-weight: 750;
  letter-spacing: -0.02em;
  background: linear-gradient(105deg, #fff 0%, #c7d2fe 50%, #67e8f9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent !important;
}

main.page-shell > .text-center {
  padding-top: 36px;
  margin-bottom: 8px;
}

main.page-shell > .text-center p {
  margin: 0;
  color: var(--muted) !important;
  font-size: 15px;
}

.tool-page-header p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

/* Bootstrap overrides for tool pages */
.toolbar,
.result-area,
.tab-content,
.header-area,
.header-card,
.card {
  background: rgba(14, 16, 23, 0.75) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: none !important;
  color: var(--ink) !important;
  backdrop-filter: blur(8px);
}

.toolbar,
.result-area,
.tab-content,
.header-area,
.header-card {
  padding: 22px !important;
}

.card-header {
  background: transparent !important;
  border-bottom: 1px solid var(--border) !important;
  color: var(--ink-strong) !important;
  font-weight: 600 !important;
}

.card-body {
  color: var(--ink) !important;
}

h1, h2, h3, h4, h5, h6,
.category-title {
  color: var(--ink-strong);
  font-family: var(--font);
}

/* Re-assert gradient titles after generic heading color */
.tool-page-header h1,
.tool-page-header .app-title,
main.page-shell > .text-center .app-title,
main.page-shell > .text-center h2,
.category__title {
  color: transparent !important;
}

.category__title {
  background: linear-gradient(105deg, #fff 0%, #c7d2fe 55%, #93c5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

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

/* Forms */
.form-control,
.custom-select,
.form-control:focus,
input[type="text"],
input[type="number"],
input[type="url"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="color"],
select,
textarea {
  background-color: rgba(255, 255, 255, 0.04) !important;
  border: 1px solid var(--border-strong) !important;
  border-radius: var(--radius-sm) !important;
  color: var(--ink) !important;
  caret-color: var(--accent-2);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.form-control::placeholder,
textarea::placeholder {
  color: var(--muted-dim) !important;
}

.form-control:focus,
select:focus,
textarea:focus {
  border-color: rgba(108, 124, 255, 0.55) !important;
  box-shadow: 0 0 0 3px rgba(108, 124, 255, 0.18) !important;
  outline: none;
}

input[type="color"] {
  padding: 4px !important;
  height: 42px !important;
  cursor: pointer;
}

input[type="file"] {
  color: var(--muted);
}

.result-textarea,
#resultOutput,
.header-pre {
  background: rgba(5, 6, 10, 0.7) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  color: #a7f3d0 !important;
  font-family: var(--mono) !important;
  font-size: 13.5px !important;
}

.response-area {
  background: rgba(5, 6, 10, 0.85) !important;
  color: #6ee7b7 !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  font-family: var(--mono) !important;
}

/* Buttons */
.btn {
  border-radius: var(--radius-sm) !important;
  font-weight: 600 !important;
  font-size: 13.5px !important;
  padding: 9px 16px !important;
  border: 1px solid transparent !important;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease) !important;
  cursor: pointer;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #5b6cfa) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: 0 4px 16px rgba(108, 124, 255, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #7b8aff, #6c7cff) !important;
  box-shadow: 0 6px 20px rgba(108, 124, 255, 0.45);
  color: #fff !important;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: var(--border-strong) !important;
  color: var(--ink) !important;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1) !important;
  color: var(--ink-strong) !important;
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #34d399) !important;
  color: #042f1e !important;
  border: none !important;
}

.btn-info {
  background: linear-gradient(135deg, #0ea5e9, #22d3ee) !important;
  color: #062a38 !important;
  border: none !important;
}

.btn-warning {
  background: linear-gradient(135deg, #f59e0b, #fbbf24) !important;
  color: #3b2200 !important;
  border: none !important;
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #f87171) !important;
  color: #fff !important;
  border: none !important;
}

.btn-outline-primary,
.btn-outline-secondary,
.btn-outline-success,
.btn-outline-info,
.btn-outline-warning {
  background: transparent !important;
  border-color: var(--border-strong) !important;
  color: var(--ink) !important;
}

.btn-outline-primary:hover,
.btn-outline-secondary:hover,
.btn-outline-success:hover,
.btn-outline-info:hover,
.btn-outline-warning:hover {
  background: rgba(108, 124, 255, 0.12) !important;
  border-color: var(--accent) !important;
  color: var(--ink-strong) !important;
}

/* Nav pills / tabs */
.nav-pills .nav-link {
  color: var(--muted);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.nav-pills .nav-link.active,
.nav-pills .show > .nav-link {
  background: rgba(108, 124, 255, 0.2) !important;
  color: var(--ink-strong) !important;
}

.nav-tabs {
  border-bottom-color: var(--border) !important;
}

.nav-tabs .nav-link {
  color: var(--muted);
  border: none !important;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.nav-tabs .nav-link.active {
  background: transparent !important;
  color: var(--accent-2) !important;
  border-bottom: 2px solid var(--accent) !important;
}

/* Tables */
.table {
  color: var(--ink);
  --table-accent: transparent;
}

.table thead th {
  border-color: var(--border) !important;
  color: var(--muted);
  font-weight: 600;
  font-size: 13px;
}

.table td,
.table th {
  border-color: var(--border) !important;
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(255, 255, 255, 0.02);
}

/* Alerts */
.alert {
  border-radius: var(--radius-sm) !important;
  border: 1px solid var(--border) !important;
}

.alert-success {
  background: rgba(52, 211, 153, 0.12) !important;
  color: #6ee7b7 !important;
}

.alert-danger {
  background: rgba(248, 113, 113, 0.12) !important;
  color: #fca5a5 !important;
}

.alert-warning {
  background: rgba(251, 191, 36, 0.12) !important;
  color: #fcd34d !important;
}

.alert-info {
  background: rgba(34, 211, 238, 0.12) !important;
  color: #67e8f9 !important;
}

/* Modal / dropdown dark */
.modal-content,
.dropdown-menu {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--border) !important;
  color: var(--ink) !important;
  border-radius: var(--radius) !important;
}

.dropdown-item {
  color: var(--ink) !important;
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: rgba(108, 124, 255, 0.15) !important;
  color: var(--ink-strong) !important;
}

/* Badge */
.badge {
  font-weight: 600;
}

/* Client IP chip */
.client-ip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
}

.client-ip i {
  color: var(--accent-2);
}

/* ---------- Footer ---------- */
.site-footer {
  margin-top: 72px;
  padding: 48px 0 36px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, rgba(108, 124, 255, 0.04));
  color: var(--muted);
  font-size: 13.5px;
  text-align: center;
}

.site-footer__brand {
  color: var(--ink-strong);
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 12px;
}

.site-footer__line {
  margin: 6px 0;
}

.site-footer__shield {
  display: inline-flex;
  align-items: flex-start;
  gap: 8px;
  max-width: 520px;
  margin: 14px auto 0;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  text-align: left;
  line-height: 1.55;
}

.site-footer__shield i {
  color: var(--success);
  margin-top: 3px;
}

.site-footer a {
  color: var(--muted);
}

.site-footer a:hover {
  color: var(--accent-2);
}

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 1;
  transform: none;
}

html.js-motion .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

html.js-motion .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.06s; }
.reveal-delay-2 { transition-delay: 0.12s; }
.reveal-delay-3 { transition-delay: 0.18s; }
.reveal-delay-4 { transition-delay: 0.24s; }
.reveal-delay-5 { transition-delay: 0.3s; }
.reveal-delay-6 { transition-delay: 0.36s; }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero__orb,
  .tool-card,
  .btn,
  .reveal,
  html.js-motion .reveal {
    animation: none !important;
    transition: none !important;
  }

  .reveal,
  html.js-motion .reveal {
    opacity: 1;
    transform: none;
  }

  .tool-card:hover,
  .btn:hover {
    transform: none;
  }
}

/* ---------- Bootstrap navbar overrides (legacy safety) ---------- */
.navbar {
  display: none;
}

/* =========================================================
   Tool page light-style overrides
   (inline styles on tool templates lose to these)
   ========================================================= */
.tool-container {
  background: rgba(14, 16, 23, 0.75) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius) !important;
  box-shadow: none !important;
  color: var(--ink) !important;
  backdrop-filter: blur(8px);
  padding: 22px !important;
}

.preview-container {
  margin-top: 20px;
  text-align: center;
}

.preview-image {
  max-width: 100%;
  max-height: 300px;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  padding: 10px;
  background: rgba(5, 6, 10, 0.55) !important;
}

.result-box,
.matches-area,
.hash-result,
.info-box,
.error-box,
.regex-cheatsheet,
.webhook-url,
.request-log-item,
.response-item,
.history-item {
  background: rgba(5, 6, 10, 0.55) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
  color: var(--ink) !important;
}

.info-box {
  border-left: 4px solid var(--accent) !important;
}

.error-box {
  border-left: 4px solid var(--danger) !important;
  color: #fca5a5 !important;
}

.webhook-url {
  border-color: rgba(108, 124, 255, 0.3) !important;
  color: var(--ink) !important;
}

.section-title,
.converter-title {
  color: var(--ink-strong) !important;
  font-weight: 650 !important;
}

.section-title i,
.converter-title i {
  color: var(--accent-2) !important;
}

.size-options {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 15px 0;
}

.size-option,
.algorithm-tab {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  border: 1px solid var(--border-strong) !important;
  border-radius: var(--radius-xs) !important;
  background: rgba(255, 255, 255, 0.03) !important;
  color: var(--ink) !important;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.size-option:hover,
.algorithm-tab:hover {
  background: rgba(108, 124, 255, 0.12) !important;
  border-color: rgba(108, 124, 255, 0.4) !important;
}

.size-option.active,
.algorithm-tab.active {
  background: rgba(108, 124, 255, 0.2) !important;
  border-color: var(--accent) !important;
  color: var(--ink-strong) !important;
  font-weight: 600;
}

.custom-file-input::-webkit-file-upload-button {
  visibility: hidden;
  width: 0;
}

.custom-file-input::before {
  content: '选择文件';
  display: inline-block;
  background: rgba(255, 255, 255, 0.06) !important;
  border: 1px solid var(--border-strong) !important;
  border-radius: var(--radius-xs) !important;
  padding: 8px 14px;
  outline: none;
  white-space: nowrap;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  color: var(--ink) !important;
}

.custom-file-input:hover::before {
  border-color: var(--accent) !important;
  background: rgba(108, 124, 255, 0.12) !important;
}

.upload-area {
  border: 2px dashed var(--border-strong) !important;
  border-radius: var(--radius) !important;
  background: rgba(255, 255, 255, 0.02) !important;
  color: var(--muted) !important;
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--accent) !important;
  background: rgba(108, 124, 255, 0.08) !important;
}

.example-item {
  background: rgba(255, 255, 255, 0.03) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-xs) !important;
  color: var(--ink) !important;
  cursor: pointer;
}

.example-item:hover {
  background: rgba(108, 124, 255, 0.1) !important;
  border-color: rgba(108, 124, 255, 0.35) !important;
}

.cheatsheet-title {
  background: rgba(255, 255, 255, 0.04) !important;
  border-bottom-color: var(--border) !important;
  color: var(--ink-strong) !important;
}

.cheatsheet-content {
  color: var(--ink) !important;
}

.cheatsheet-section {
  color: var(--ink) !important;
}

.example-pattern {
  color: #fca5a5 !important;
}

.group-name {
  color: var(--ink-strong) !important;
}

.match-value {
  background: rgba(34, 211, 238, 0.12) !important;
  color: #67e8f9 !important;
}

.group-value {
  background: rgba(251, 191, 36, 0.12) !important;
  color: #fcd34d !important;
}

.match-index {
  color: var(--accent-2) !important;
}

.cheatsheet-section-title,
.hash-value {
  color: var(--accent-2) !important;
}

.hash-name {
  color: var(--ink-strong) !important;
}

.hash-copy {
  color: var(--muted) !important;
}

.hash-copy:hover {
  color: var(--ink-strong) !important;
}

.stat-item,
.code-symbol {
  background: rgba(255, 255, 255, 0.05) !important;
  border-radius: var(--radius-xs) !important;
}

.tab-btn,
.copy-btn {
  background: rgba(255, 255, 255, 0.05) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-xs) !important;
  color: var(--ink) !important;
}

.tab-btn.active,
.copy-btn:hover,
.tab-btn:hover:not(.active) {
  background: rgba(108, 124, 255, 0.18) !important;
  border-color: rgba(108, 124, 255, 0.4) !important;
  color: var(--ink-strong) !important;
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--accent), #5b6cfa) !important;
  border-color: transparent !important;
  color: #fff !important;
}

.cheatsheet-table td {
  border-bottom-color: var(--border) !important;
  color: var(--ink) !important;
}

.cheatsheet-table .code-symbol {
  font-family: var(--mono) !important;
}

.algorithm-tabs {
  border-bottom-color: var(--border) !important;
}

.copy-feedback {
  background: var(--success) !important;
  color: #042f1e !important;
}

.css-error {
  color: #fca5a5 !important;
}

.css-success {
  color: #6ee7b7 !important;
}

.match-count {
  color: #6ee7b7 !important;
}

.highlight-match {
  background-color: rgba(52, 211, 153, 0.2) !important;
  border-bottom: 2px solid var(--success) !important;
}

.spinner {
  border: 3px solid rgba(255, 255, 255, 0.12) !important;
  border-top-color: var(--accent-2) !important;
}

.timestamp-now {
  color: var(--accent-2) !important;
}

.empty-state i {
  color: var(--muted-dim) !important;
}

/* Response / code dumps */
pre,
.code-block,
.response-body {
  background: rgba(5, 6, 10, 0.7) !important;
  color: #a7f3d0 !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-sm) !important;
}

/* Form check labels */
.form-check-label,
label {
  color: var(--ink) !important;
}

/* Color page swatches keep their own colors */
.color-swatch {
  border-color: var(--border-strong) !important;
  border-radius: var(--radius-xs) !important;
}

.color-display {
  border-color: var(--border-strong) !important;
  border-radius: var(--radius-sm) !important;
}

/* Range inputs */
input[type="range"] {
  accent-color: var(--accent);
}

/* Small caption chips used across tools */
.badge-secondary {
  background: rgba(255, 255, 255, 0.08) !important;
  color: var(--ink) !important;
}

/* Print */
@media print {
  .site-nav,
  .hero__orbs,
  .scroll-progress {
    display: none !important;
  }
  body {
    background: #fff;
    color: #111;
  }
}