/* =========================================================
   Toolfik — styles
   Paper / typewriter aesthetic. Light + dark themes.
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  --bg: #f5f1e8;
  --bg-panel: #faf7f0;
  --bg-card: #fbf9f3;
  --ink: #1a1a1a;
  --ink-soft: #55524b;
  --ink-faint: #8a857b;
  --border: #d8d2c4;
  --border-strong: #bcb5a3;
  --accent: #2f6b3f;      /* muted green used for "Free" + underline */
  --tag-bg: #e9e4d6;
  --shadow: 0 1px 2px rgba(60, 54, 40, 0.06);

  --font-mono: "Courier New", "Courier", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --radius: 8px;
  --maxw: 1280px;
}

[data-theme="dark"] {
  --bg: #1c1b18;
  --bg-panel: #232220;
  --bg-card: #262523;
  --ink: #ece7db;
  --ink-soft: #b3ae9f;
  --ink-faint: #8a857b;
  --border: #3a3833;
  --border-strong: #4c4a43;
  --accent: #7fb98d;
  --tag-bg: #33322d;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip; /* guardrail: never show a horizontal scrollbar (clip keeps sticky working) */
}

img, svg { display: block; max-width: 100%; }
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
/* Shared line-icon rendering for all sprite <use> icons */
.cat-icon, .tool-icon svg, .ai-icon, .trust-icon svg {
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Utilities ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.visually-hidden, .skip-link:not(:focus) {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 12px; top: 12px; z-index: 100;
  background: var(--ink); color: var(--bg);
  padding: 8px 14px; border-radius: 6px;
}

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 9px 18px; border-radius: 6px; font-size: 0.9rem;
  border: 1px solid transparent; transition: background .15s, color .15s, border-color .15s;
}
.btn-outline { border-color: var(--border-strong); background: transparent; color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--bg); }
.btn-dark { background: var(--ink); color: var(--bg); }
.btn-dark:hover { opacity: .88; }
.btn-block { display: flex; width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(120%) blur(6px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; gap: 24px;
  min-height: 64px;
}
.logo { font-weight: 700; letter-spacing: 1px; font-size: 1.15rem; }

.main-nav { flex: 1; }
.nav-list { display: flex; gap: 26px; justify-content: center; }
.nav-list a {
  font-size: 0.92rem; color: var(--ink-soft);
  padding: 6px 2px; transition: color .15s;
}
.nav-list a:hover { color: var(--ink); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; border-radius: 6px;
  background: transparent; border: 1px solid transparent; color: var(--ink);
}
.theme-toggle:hover { background: var(--tag-bg); }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* Hamburger (mobile only) */
.nav-toggle { display: none; flex-direction: column; gap: 4px; width: 40px; height: 38px; background: transparent; border: 1px solid var(--border-strong); border-radius: 6px; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink); transition: transform .2s, opacity .2s; }

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 56px 0 40px; }
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  font-weight: 700; margin: 0 0 18px; letter-spacing: -0.5px;
}
.hero h1 u { text-decoration-color: var(--ink); text-decoration-thickness: 3px; text-underline-offset: 6px; }
.hero-sub { color: var(--ink-soft); font-size: 1.02rem; margin: 0 auto 30px; max-width: 620px; }

.search { position: relative; max-width: 780px; margin: 0 auto 20px; }
.search-icon { position: absolute; left: 18px; top: 50%; transform: translateY(-50%); color: var(--ink-faint); pointer-events: none; }
.search input {
  width: 100%; padding: 16px 20px 16px 50px;
  font-family: inherit; font-size: 1rem; color: var(--ink);
  background: var(--bg-panel); border: 1px solid var(--border-strong);
  border-radius: 10px; box-shadow: var(--shadow);
}
.search input::placeholder { color: var(--ink-faint); }
.search input:focus { outline: none; border-color: var(--accent); }

.popular-now { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; }
.popular-label { color: var(--ink-soft); font-size: 0.9rem; }
.chip {
  padding: 6px 14px; font-size: 0.86rem;
  background: var(--bg-panel); border: 1px solid var(--border-strong);
  border-radius: 6px; color: var(--ink); transition: all .15s;
}
.chip:hover { background: var(--tag-bg); }

/* ---------- Body layout ---------- */
.layout { display: grid; grid-template-columns: 232px 1fr; gap: 32px; padding-top: 24px; padding-bottom: 48px; align-items: start; }
/* Allow grid children to shrink below content size (prevents horizontal overflow) */
.layout > .sidebar, .layout > .content { min-width: 0; }
/* Same guard for every multi-column grid: a wide cell must never force horizontal scroll */
.tool-grid > *, .all-list > *, .trust-inner > *, .footer-inner > *, .stat-grid > *, .cv-fields > * { min-width: 0; }

/* ---------- Sidebar ---------- */
.sidebar { position: sticky; top: 84px; }
.sidebar-title { font-size: 0.78rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 12px; }
.category-list { display: flex; flex-direction: column; gap: 2px; margin-bottom: 24px; }
.category {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 6px;
  font-size: 0.92rem; color: var(--ink-soft);
  border: 1px solid transparent; transition: all .15s;
}
.cat-icon { width: 17px; height: 17px; flex-shrink: 0; color: var(--ink-faint); }
.category:hover { background: var(--tag-bg); color: var(--ink); }
.category:hover .cat-icon { color: var(--ink-soft); }
.category.is-active {
  background: var(--bg-card); border-color: var(--border-strong);
  color: var(--ink); font-weight: 700; box-shadow: var(--shadow);
}
.category.is-active .cat-icon { color: var(--ink); }

.premium-card { border: 1px solid var(--border-strong); border-radius: var(--radius); padding: 18px; background: var(--bg-panel); }
.premium-title { font-weight: 700; font-size: 0.82rem; letter-spacing: 1px; margin: 0 0 14px; }
.premium-perks { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.premium-perks li { font-size: 0.86rem; color: var(--ink-soft); padding-left: 22px; position: relative; }
.premium-perks li::before { content: "\2713"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* ---------- Section head ---------- */
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; flex-wrap: wrap; }
.section-head h2 { font-size: 1.35rem; letter-spacing: 1px; text-transform: uppercase; margin: 0; }
.view-all { font-size: 0.9rem; color: var(--ink-soft); }
.view-all:hover { color: var(--ink); }

/* ---------- Popular tool grid ---------- */
.tool-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; margin-bottom: 48px; }
.tool-card { display: flex; }
.tool-card-link {
  display: flex; flex-direction: column; width: 100%;
  padding: 18px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); transition: transform .15s, border-color .15s;
}
.tool-card-link:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.tool-card-top { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.tool-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; flex-shrink: 0;
  border: 1px solid var(--border-strong); border-radius: 8px;
  color: var(--ink); background: var(--bg-panel);
}
.tool-icon svg { width: 19px; height: 19px; }
.tool-icon.is-text { font-weight: 700; font-size: 0.95rem; }
.tool-icon.is-small { font-size: 0.58rem; letter-spacing: 0.5px; }
.tool-name { font-weight: 700; font-size: 0.98rem; }
.tool-desc { color: var(--ink-soft); font-size: 0.85rem; flex: 1; margin-bottom: 16px; }
.tool-card-foot { display: flex; align-items: center; justify-content: space-between; }

.tag { font-size: 0.74rem; color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); background: color-mix(in srgb, var(--accent) 8%, transparent); padding: 2px 8px; border-radius: 4px; }
.arrow { color: var(--ink-faint); font-size: 1.2rem; }

/* ---------- All tools list ---------- */
.all-tools { }
.all-head { align-items: center; }
.all-head h2 { margin-right: 6px; }
.filter-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.sort-select {
  margin-left: auto; font-family: inherit; font-size: 0.82rem;
  padding: 7px 30px 7px 12px; color: var(--ink);
  background: var(--bg-panel) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238a857b' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E") no-repeat right 10px center;
  border: 1px solid var(--border-strong); border-radius: 6px;
  -webkit-appearance: none; appearance: none; cursor: pointer;
}
.sort-select:focus { outline: none; border-color: var(--accent); }
.tab {
  padding: 6px 14px; font-size: 0.82rem; border-radius: 20px;
  border: 1px solid var(--border); background: var(--bg-panel); color: var(--ink-soft);
  transition: all .15s;
}
.tab:hover { border-color: var(--border-strong); color: var(--ink); }
.tab.is-active { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.all-list { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px 24px; margin-top: 8px; }
.all-item a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 8px; border-radius: 6px; transition: background .15s;
}
.all-item a:hover { background: var(--tag-bg); }
.ai-icon {
  width: 17px; height: 17px; flex-shrink: 0; color: var(--ink-faint);
}
.ai-name { flex: 1; font-size: 0.9rem; }
.all-item .tag { flex-shrink: 0; }

.no-results { text-align: center; color: var(--ink-soft); padding: 32px 0; }

.see-all-wrap { text-align: center; margin-top: 24px; }
.see-all { font-size: 0.92rem; color: var(--ink-soft); }
.see-all:hover { color: var(--ink); }

/* ---------- Trust bar ---------- */
.trust-bar { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-panel); padding: 28px 0; }
.trust-inner { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.trust-item { display: flex; align-items: center; gap: 16px; }
.trust-icon { flex-shrink: 0; color: var(--ink); }
.trust-icon svg { width: 30px; height: 30px; }
.trust-title { font-weight: 700; margin: 0 0 2px; font-size: 0.98rem; }
.trust-desc { color: var(--ink-soft); font-size: 0.85rem; margin: 0; }

/* ---------- Footer ---------- */
.site-footer { padding: 48px 0 24px; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1.6fr; gap: 32px; margin-bottom: 32px; }
.footer-logo { font-weight: 700; letter-spacing: 1px; font-size: 1.05rem; margin: 0 0 12px; }
.footer-tagline { color: var(--ink-soft); font-size: 0.86rem; max-width: 260px; margin: 0 0 18px; }
.social { display: flex; gap: 10px; }
.social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 6px;
  background: var(--ink); color: var(--bg); font-size: 0.85rem;
}
.social a:hover { opacity: .85; }

.footer-col h2 { font-size: 0.78rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--ink-faint); margin: 0 0 14px; }
.footer-col ul { display: flex; flex-direction: column; gap: 9px; }
.footer-col a { font-size: 0.88rem; color: var(--ink-soft); }
.footer-col a:hover { color: var(--ink); }
.footer-subscribe p { font-size: 0.86rem; color: var(--ink-soft); margin: 0 0 12px; }
.subscribe { display: flex; gap: 8px; }
.subscribe input {
  flex: 1; min-width: 0; padding: 10px 12px; font-family: inherit; font-size: 0.86rem;
  background: var(--bg-panel); border: 1px solid var(--border-strong);
  border-radius: 6px; color: var(--ink);
}
.subscribe input:focus { outline: none; border-color: var(--accent); }

.copyright { text-align: center; color: var(--ink-faint); font-size: 0.82rem; border-top: 1px solid var(--border); padding-top: 24px; margin: 0; }

/* ---------- Filtered state ---------- */
[hidden] { display: none !important; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1080px) {
  .tool-grid { grid-template-columns: repeat(3, 1fr); }
  .all-list { grid-template-columns: repeat(3, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-subscribe { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  /* Turn sidebar categories into a horizontal scroll strip */
  .category-list { flex-direction: row; overflow-x: auto; gap: 8px; padding-bottom: 6px; max-width: 100%; -webkit-overflow-scrolling: touch; }
  .category { white-space: nowrap; border: 1px solid var(--border); }
  .premium-card { display: none; }

  /* Collapse nav into hamburger menu */
  .header-inner { gap: 12px; }
  .nav-toggle { display: flex; }
  .main-nav { order: 0; flex: 0 0 auto; }
  .logo { order: 1; font-size: 1.02rem; white-space: nowrap; }
  .header-actions { order: 2; margin-left: auto; }
  .header-actions .btn-outline { white-space: nowrap; padding: 8px 12px; }
  .nav-list {
    position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--bg-panel);
    border-bottom: 1px solid var(--border); padding: 8px 24px;
    display: none;
  }
  .nav-list.open { display: flex; }
  .nav-list li { border-bottom: 1px solid var(--border); }
  .nav-list li:last-child { border-bottom: none; }
  .nav-list a { display: block; padding: 12px 0; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .hero { padding: 36px 0 28px; }
  .tool-grid { grid-template-columns: repeat(2, 1fr); }
  .all-list { grid-template-columns: 1fr; }
  .trust-inner { grid-template-columns: 1fr; gap: 20px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .header-actions .btn-outline { padding: 8px 12px; }
}

@media (max-width: 420px) {
  .tool-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}

/* Respect reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ============ TOOL PAGES (generated from tools.json) ============ */
.tool-page { padding: 28px 0 56px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  font-size: 13px; color: var(--ink-faint); margin-bottom: 20px; }
.breadcrumb a { color: var(--ink-soft); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb [aria-current] { color: var(--ink); }

.tool-header { margin-bottom: 24px; }
.tool-header h1 { font-size: 32px; margin: 0 0 8px; }
.tool-tagline { color: var(--ink-soft); font-size: 16px; margin: 0 0 14px; }
.badge-row { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.badge { font-size: 12px; letter-spacing: .02em; padding: 4px 10px; cursor: help;
  border: 1px solid var(--border-strong); border-radius: 999px;
  background: var(--bg-card); color: var(--ink-soft); }

.tool-body { background: var(--bg-panel); border: 1px solid var(--border-strong);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.tool-label { display: block; font-size: 13px; color: var(--ink-soft); margin-bottom: 8px; }
.tool-textarea { width: 100%; box-sizing: border-box; resize: vertical;
  font-family: inherit; font-size: 15px; line-height: 1.6; color: var(--ink);
  background: var(--bg); border: 1px solid var(--border-strong);
  border-radius: var(--radius); padding: 14px; }
.tool-textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.stat-grid { list-style: none; margin: 18px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.stat { text-align: center; padding: 14px 8px; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius); }
.stat-num { display: block; font-size: 22px; font-weight: 700; color: var(--ink); }
.stat-label { display: block; font-size: 11px; color: var(--ink-faint); margin-top: 4px; }

.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; align-items: center; }
.tool-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

.tool-textarea.code { font-family: "Courier New", ui-monospace, monospace; font-size: 14px; white-space: pre; overflow-wrap: normal; }
.jf-indent { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-soft); }
.jf-select { font-family: inherit; font-size: 13px; color: var(--ink); background: var(--bg);
  border: 1px solid var(--border-strong); border-radius: var(--radius); padding: 6px 8px; }
.jf-status { min-height: 20px; margin: 4px 0 0; font-size: 13px; }
.jf-status.is-ok { color: #2f7d32; }
.jf-status.is-error { color: #b3261e; }

.tool-faq { margin-top: 40px; }
.tool-faq h2, .related-tools h2 { font-size: 22px; margin: 0 0 16px; }
.faq-list { margin: 0; }
.faq-item { border-top: 1px solid var(--border); padding: 16px 0; }
.faq-item dt { font-weight: 700; margin-bottom: 6px; }
.faq-item dd { margin: 0; color: var(--ink-soft); }

.related-tools { margin-top: 40px; }

.coming-soon { background: var(--bg-panel); border: 1px dashed var(--border-strong);
  border-radius: var(--radius); padding: 28px; color: var(--ink-soft); }
.coming-soon-badge { display: inline-block; font-size: 12px; letter-spacing: .05em;
  text-transform: uppercase; color: var(--ink-faint); border: 1px solid var(--border-strong);
  border-radius: 999px; padding: 4px 12px; margin: 0 0 12px; }

@media (max-width: 860px) { .stat-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 420px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } .tool-header h1 { font-size: 26px; } }

/* ============ TOOL PRESETS + PRIVACY NOTE ============ */
.privacy-note { font-size: 13px; color: var(--ink-faint); margin: 12px 2px 0;
  display: flex; align-items: center; gap: 6px; }
.privacy-note::before { content: "🔒"; filter: grayscale(1); font-size: 12px; }
.tool-presets { margin-top: 32px; }
.tool-presets h2 { font-size: 20px; margin: 0 0 14px; }
.preset-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.preset-list li { display: flex; flex-direction: column; }
.preset-chip { display: inline-block; padding: 8px 14px; border: 1px solid var(--border-strong);
  border-radius: 999px; background: var(--bg-card); color: var(--ink); font-size: 14px; }
.preset-chip:hover { background: var(--ink); color: var(--bg); }
.preset-desc { font-size: 12px; color: var(--ink-faint); margin: 4px 4px 0; }

/* ============ BATCH 3 TOOLS (color / password / uuid / timestamp) ============ */
.cv-picker { width: 56px; height: 40px; padding: 0; border: 1px solid var(--border-strong);
  border-radius: var(--radius); background: var(--bg-card); cursor: pointer; }
.cv-swatch { display: inline-block; width: 40px; height: 40px; border-radius: var(--radius);
  border: 1px solid var(--border-strong); vertical-align: middle; }
.cv-fields { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 14px; }
.cv-field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; color: var(--ink-soft); }
.cv-input { width: 100%; }

.pg-output-row { display: flex; gap: 10px; align-items: stretch; }
.pg-output { flex: 1; }
.pg-check { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--ink-soft); }
.pg-check input { accent-color: var(--ink); }

.ut-now { font-size: 14px; color: var(--ink-soft); margin: 0 0 6px; }

@media (min-width: 620px) { .cv-fields { grid-template-columns: repeat(3, 1fr); } }

/* ============ CONTENT / LEGAL PAGES ============ */
.content-page { padding: 40px 0 64px; }
.content-page .prose { max-width: 720px; }
.content-page h1 { font-size: 34px; margin: 0 0 8px; }
.content-page .prose > p:first-of-type { color: var(--ink-soft); }
.content-page h2 { font-size: 22px; margin: 34px 0 10px; }
.content-page p, .content-page li { color: var(--ink); line-height: 1.7; }
.content-page ul { margin: 0 0 14px; padding-left: 22px; list-style: disc; }
.content-page li { margin-bottom: 6px; }
.content-page a { color: var(--accent); text-decoration: underline; }
.content-page .muted { color: var(--ink-faint); font-size: 14px; }
.content-page .updated { color: var(--ink-faint); font-size: 14px; margin-bottom: 24px; }

/* --- Resize Image tool --- */
.ri-drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px 20px; border: 2px dashed var(--rule); border-radius: 12px;
  cursor: pointer; text-align: center; transition: border-color .15s, background .15s;
}
.ri-drop:hover, .ri-drop.is-drag { border-color: var(--accent); background: rgba(0,0,0,0.02); }
.ri-drop-title { font-weight: 600; font-size: 18px; margin-bottom: 4px; }
.ri-drop-hint { color: var(--ink-faint); font-size: 14px; }
.ri-preview-row { display: grid; grid-template-columns: 1fr; gap: 16px; margin: 20px 0; }
@media (min-width: 640px) { .ri-preview-row { grid-template-columns: 1fr 1fr; } }
.ri-fig { margin: 0; min-width: 0; }
.ri-fig figcaption { font-size: 13px; color: var(--ink-faint); margin-bottom: 6px; }
.ri-fig img { max-width: 100%; height: auto; border: 1px solid var(--rule); border-radius: 6px; background: #fff; display: block; }
#ri-qwrap { display: inline-flex; align-items: center; gap: 8px; }
#ri-qwrap input[type="range"] { width: 120px; }

/* --- Crop Image tool --- */
.ci-stage { position: relative; display: inline-block; max-width: 100%; margin: 12px 0; user-select: none; }
.ci-stage img { max-width: 100%; height: auto; display: block; border: 1px solid var(--rule); border-radius: 6px; }
.ci-box {
  position: absolute; border: 2px dashed var(--accent);
  background: rgba(0, 0, 0, 0.15); pointer-events: none;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
}

/* --- Merge PDF tool --- */
.mp-list { list-style: none; padding: 0; margin: 16px 0; }
.mp-item {
  display: grid; grid-template-columns: 32px 1fr auto auto;
  align-items: center; gap: 10px;
  padding: 10px 12px; border: 1px solid var(--rule); border-radius: 6px;
  margin-bottom: 6px; background: rgba(0, 0, 0, 0.02); min-width: 0;
}
.mp-order { font-family: var(--font-mono); color: var(--ink-faint); text-align: center; }
.mp-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mp-size { color: var(--ink-faint); font-size: 13px; font-variant-numeric: tabular-nums; }
.mp-btns { display: inline-flex; gap: 4px; }
.mp-btns button, .mp-btns span {
  min-width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--rule); background: var(--paper); border-radius: 4px; cursor: pointer;
  font-family: var(--font-mono);
}
.mp-btns button:hover { border-color: var(--accent); }

/* --- Regex tester --- */
.rx-input { display: flex; align-items: stretch; gap: 4px; font-family: var(--font-mono); }
.rx-slash { display: inline-flex; align-items: center; padding: 0 6px; color: var(--ink-faint); font-size: 20px; }
.rx-pat { flex: 1; min-width: 0; }
.rx-flags { flex: 0 0 80px; text-align: center; }
.rx-out-wrap { margin-top: 20px; }
.rx-h { font-size: 15px; margin: 12px 0 8px; color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.05em; }
.rx-hilite {
  white-space: pre-wrap; word-break: break-word;
  padding: 12px; background: rgba(0,0,0,0.03);
  border: 1px solid var(--rule); border-radius: 6px;
  min-height: 60px; max-height: 240px; overflow: auto;
}
.rx-mark { background: #ffe58a; color: inherit; padding: 0 2px; border-radius: 2px; }
.rx-list { margin-top: 12px; }
.rx-item { grid-template-columns: 60px 1fr auto; }
.rx-groups { display: block; margin-top: 4px; font-size: 13px; color: var(--ink-faint); }
.rx-group { margin-right: 12px; }
.rx-details { margin-top: 16px; }
.rx-presets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.rx-presets button {
  padding: 4px 10px; border: 1px solid var(--rule); background: var(--paper);
  border-radius: 999px; cursor: pointer; font-size: 13px; font-family: inherit;
}
.rx-presets button:hover { border-color: var(--accent); }

/* --- JWT decoder --- */
.jw-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 900px) { .jw-grid { grid-template-columns: 1fr 1fr 1fr; } .jw-grid section:nth-child(2) { grid-column: span 1; } }
.jw-block {
  background: rgba(0,0,0,0.03); border: 1px solid var(--rule);
  border-radius: 6px; padding: 12px; margin: 0;
  white-space: pre-wrap; word-break: break-word; font-size: 13px;
  max-height: 320px; overflow: auto;
}
.jw-times { font-size: 12px; color: var(--ink-faint); text-transform: none; letter-spacing: 0; margin-left: 8px; }
.jw-note { font-size: 12px; color: var(--ink-faint); text-transform: none; letter-spacing: 0; margin-left: 8px; }

/* --- Diff checker --- */
.df-wrap { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 900px) { .df-wrap { grid-template-columns: 1fr 1fr; } }
.df-out {
  background: rgba(0,0,0,0.02); border: 1px solid var(--rule); border-radius: 6px;
  padding: 12px; overflow: auto; font-family: var(--font-mono); font-size: 13px;
  max-height: 500px;
}
.df-line { display: flex; gap: 12px; padding: 2px 4px; white-space: pre-wrap; word-break: break-word; }
.df-line.add { background: rgba(46, 160, 67, 0.12); }
.df-line.del { background: rgba(248, 81, 73, 0.12); }
.df-mark-add { background: rgba(46, 160, 67, 0.4); }
.df-mark-del { background: rgba(248, 81, 73, 0.4); }
.df-num { color: var(--ink-faint); text-align: right; min-width: 40px; user-select: none; }
.df-sign { min-width: 14px; }

/* --- Number base converter --- */
.nb-fields { display: grid; grid-template-columns: 1fr; gap: 10px; }
@media (min-width: 720px) { .nb-fields { grid-template-columns: repeat(2, 1fr); } }
.nb-fields label { display: block; }
.nb-fields code { color: var(--ink-faint); font-size: 12px; }

/* --- QR generator --- */
.qr-preview { display: flex; justify-content: center; margin-top: 20px; padding: 16px; background: rgba(0,0,0,0.02); border: 1px solid var(--rule); border-radius: 6px; }
.qr-preview img { max-width: 100%; height: auto; max-height: 360px; }

/* --- Tool guide (SEO educational content) --- */
.tool-guide { max-width: 780px; margin: 40px auto 24px; padding: 0 16px; }
.tool-guide h2 { font-size: 24px; margin-bottom: 16px; }
.tool-guide h3 { font-size: 18px; margin-top: 24px; margin-bottom: 10px; color: var(--ink); }
.guide-steps { padding-left: 24px; margin: 0 0 20px; }
.guide-steps li { margin-bottom: 8px; line-height: 1.6; }
.guide-cases { list-style: none; padding: 0; margin: 0 0 20px; }
.guide-cases li { margin-bottom: 12px; padding: 10px 12px; background: rgba(0,0,0,0.02); border-left: 3px solid var(--rule); border-radius: 3px; }
.guide-tips { padding-left: 24px; margin: 0 0 20px; }
.guide-tips li { margin-bottom: 6px; line-height: 1.6; }

/* --- Watchtower dashboard --- */
.wt-main { max-width: 1200px; margin: 40px auto; padding: 0 16px; }
.wt-gate {
  max-width: 380px; margin: 80px auto; padding: 32px;
  background: var(--paper); border: 1px solid var(--rule); border-radius: 8px;
  display: flex; flex-direction: column; gap: 12px;
}
.wt-gate h1 { margin: 0 0 4px; font-size: 24px; }
.wt-gate label { display: flex; flex-direction: column; gap: 6px; font-size: 14px; }
.wt-gate input { padding: 8px 10px; border: 1px solid var(--rule); border-radius: 4px; font-family: var(--font-mono); }

.wt-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.wt-header h1 { margin: 0; font-size: 26px; }
.wt-controls { display: flex; gap: 12px; align-items: center; font-size: 13px; color: var(--ink-faint); }
.wt-tick { font-family: var(--font-mono); background: rgba(0,0,0,0.04); padding: 4px 8px; border-radius: 4px; }
.wt-toggle { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }

.wt-hero { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 24px; min-width: 0; }
@media (min-width: 720px) { .wt-hero { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.wt-metric { background: var(--paper); border: 1px solid var(--rule); padding: 20px; border-radius: 6px; text-align: center; min-width: 0; }
.wt-metric-hero { background: rgba(255, 200, 0, 0.06); border-color: #d4a017; }
.wt-metric-num { font-family: var(--font-mono); font-size: 44px; font-weight: 700; line-height: 1; margin-bottom: 6px; font-variant-numeric: tabular-nums; }
.wt-metric-hero .wt-metric-num { font-size: 56px; color: #b8860b; }
.wt-metric-label { font-size: 12px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-faint); }

.wt-sparkline-wrap { margin-bottom: 24px; }
.wt-sparkline-wrap h2 { font-size: 14px; margin: 0 0 8px; color: var(--ink-faint); text-transform: uppercase; letter-spacing: 0.05em; }
.wt-sparkline { display: flex; align-items: flex-end; gap: 3px; height: 90px; padding: 6px 0; border-bottom: 1px solid var(--rule); }
.wt-bar { flex: 1; background: linear-gradient(to top, var(--accent), rgba(255, 200, 0, 0.5)); min-height: 2px; border-radius: 2px 2px 0 0; transition: height 0.4s ease; }

.wt-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin-bottom: 24px; }
@media (min-width: 900px) { .wt-grid { grid-template-columns: 2fr 1fr 1fr; } }
.wt-panel { background: var(--paper); border: 1px solid var(--rule); padding: 16px; border-radius: 6px; min-width: 0; }
.wt-panel h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--ink-faint); margin: 0 0 12px; }

.wt-feed { list-style: none; padding: 0; margin: 0; max-height: 400px; overflow-y: auto; font-family: var(--font-mono); font-size: 13px; }
.wt-feed li {
  display: grid; grid-template-columns: 50px 1fr auto; gap: 8px; align-items: center;
  padding: 6px 8px; border-bottom: 1px dashed rgba(0,0,0,0.06); animation: wt-fadein 0.4s ease;
}
.wt-feed li:last-child { border-bottom: none; }
.wt-ago { color: var(--ink-faint); font-size: 11px; }
.wt-feed-path { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.wt-feed-meta { color: var(--ink-faint); font-size: 11px; }
@keyframes wt-fadein { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

.wt-list { list-style: none; padding: 0; margin: 0; counter-reset: item; font-family: var(--font-mono); font-size: 13px; }
.wt-list li { display: flex; justify-content: space-between; padding: 5px 0; border-bottom: 1px dashed rgba(0,0,0,0.06); }
.wt-list li:last-child { border-bottom: none; }
.wt-path { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-right: 8px; min-width: 0; }
.wt-count { color: var(--ink-faint); font-variant-numeric: tabular-nums; }
.wt-empty { color: var(--ink-faint); font-style: italic; }

.wt-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--rule); font-size: 12px; color: var(--ink-faint); }

/* --- Comparison table --- */
.cmp-table-wrap { overflow-x: auto; margin: 20px 0; }
.cmp-table {
  width: 100%; min-width: 720px;
  border-collapse: collapse;
  font-size: 14px;
  border: 1px solid var(--rule);
}
.cmp-table th, .cmp-table td {
  padding: 10px 12px;
  border: 1px solid var(--rule);
  vertical-align: top;
  text-align: left;
}
.cmp-table th {
  background: rgba(0,0,0,0.03);
  font-weight: 600;
  white-space: nowrap;
}
.cmp-table td:first-child { font-weight: 600; color: var(--ink); }
.cmp-table .cmp-self { background: rgba(255, 200, 0, 0.08); font-weight: 500; }
.cmp-table thead th.cmp-self { background: rgba(255, 200, 0, 0.18); }

/* --- Long-tail landing page intro --- */
.tool-intro {
  max-width: 780px;
  margin: 0 auto 24px;
  padding: 16px 20px;
  background: rgba(255, 200, 0, 0.05);
  border-left: 3px solid #d4a017;
  border-radius: 3px;
  line-height: 1.6;
  color: var(--ink);
}
.tool-intro p { margin: 0; }

/* --- Image Upscaler progress bar --- */
.up-progress-wrap { margin: 16px 0; }
.up-progress {
  height: 10px; background: rgba(0,0,0,0.05); border-radius: 5px;
  overflow: hidden; border: 1px solid var(--rule);
}
.up-progress-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, #b8860b, #f4c430);
  transition: width 0.2s ease;
}
.up-progress-label {
  margin: 6px 0 0; font-size: 13px; color: var(--ink-faint);
  font-family: var(--font-mono);
}

/* --- Tool chain (What to try next) --- */
.tool-chain { max-width: 780px; margin: 32px auto 24px; padding: 0 16px; }
.tool-chain h2 { font-size: 20px; margin-bottom: 14px; }
.chain-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .chain-list { grid-template-columns: 1fr 1fr 1fr; } }
.chain-item { min-width: 0; }
.chain-item a {
  display: grid; grid-template-columns: 1fr auto;
  align-items: center; gap: 6px 10px;
  padding: 12px 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 8px;
  text-decoration: none; color: inherit;
  transition: border-color .15s, transform .15s;
}
.chain-item a:hover { border-color: var(--accent); transform: translateY(-1px); }
.chain-tool { font-weight: 600; font-size: 15px; grid-column: 1; }
.chain-arrow { color: var(--ink-faint); font-size: 18px; grid-row: 1 / span 2; grid-column: 2; }
.chain-label { grid-column: 1; grid-row: 2; font-size: 13px; color: var(--ink-faint); line-height: 1.4; }

/* --- Embed panel (tool page collapsible) --- */
.embed-panel {
  max-width: 780px; margin: 24px auto;
  border: 1px solid var(--rule); border-radius: 8px;
  background: rgba(0, 0, 0, 0.02);
}
.embed-panel > summary {
  padding: 12px 16px; cursor: pointer; font-weight: 600; font-size: 14px;
  font-family: var(--font-mono); user-select: none;
}
.embed-panel[open] > summary { border-bottom: 1px solid var(--rule); }
.embed-panel-body { padding: 14px 16px; }
.embed-panel-body p { font-size: 14px; margin: 0 0 12px; }
.embed-code {
  width: 100%; box-sizing: border-box;
  padding: 10px 12px; font-family: var(--font-mono); font-size: 12px;
  background: var(--paper); border: 1px solid var(--rule); border-radius: 4px;
  resize: vertical; min-height: 80px;
}
.embed-note {
  font-size: 12px; color: var(--ink-faint); margin-top: 10px !important;
}

/* --- Embed page details/summary polish --- */
.content-page details {
  border-left: 3px solid var(--rule); padding: 8px 0 8px 14px; margin: 10px 0;
}
.content-page details summary {
  cursor: pointer; font-weight: 600; margin-bottom: 6px;
}
.content-page details[open] summary { color: var(--accent); }