/* ==============================
   Pass1234 — Password Generator
   "Obsidian Vault" Design
   ============================== */

/* ---------- Fonts (self-hosted, no third-party requests) ---------- */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

@font-face {
  font-family: 'Plus Jakarta Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/jakarta-sans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------- Theme Variables ---------- */
:root {
  --bg: #0a0e17;
  --bg-subtle: #0f1420;
  --bg-card: rgba(16, 22, 36, 0.85);
  --bg-card-solid: #101624;
  --bg-elevated: rgba(22, 30, 50, 0.9);
  --text: #d0daf0;
  --text-secondary: #9eadc8;
  --text-tertiary: #7a8fae;
  --text-dim: #3a4c6a;
  --accent: #2dd4b2;
  --accent-secondary: #5b7fff;
  --accent-glow: rgba(45, 212, 178, 0.15);
  --accent-glow-strong: rgba(45, 212, 178, 0.3);
  --accent-dim: rgba(45, 212, 178, 0.06);
  --gradient: linear-gradient(135deg, #2dd4b2 0%, #5b7fff 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(45, 212, 178, 0.12) 0%, rgba(91, 127, 255, 0.12) 100%);
  --border: rgba(45, 212, 178, 0.08);
  --border-hover: rgba(45, 212, 178, 0.18);
  --border-active: rgba(45, 212, 178, 0.3);
  --bar-weak: #ff4d6a;
  --bar-fair: #ff9f43;
  --bar-good: #66d97f;
  --bar-strong: #2dd4b2;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(45, 212, 178, 0.08);
  --radius: 12px;
  --radius-lg: 16px;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
}

[data-theme="light"] {
  --bg: #f2f4f8;
  --bg-subtle: #e8ecf2;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-solid: #ffffff;
  --bg-elevated: rgba(255, 255, 255, 0.95);
  --text: #0f1626;
  --text-secondary: #2a364e;
  --text-tertiary: #3d4d6a;
  --text-dim: #6b7a96;
  --accent: #0d9f80;
  --accent-secondary: #4060dd;
  --accent-glow: rgba(13, 159, 128, 0.1);
  --accent-glow-strong: rgba(13, 159, 128, 0.2);
  --accent-dim: rgba(13, 159, 128, 0.05);
  --gradient: linear-gradient(135deg, #0d9f80 0%, #4060dd 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(13, 159, 128, 0.08) 0%, rgba(64, 96, 221, 0.08) 100%);
  --border: rgba(13, 159, 128, 0.12);
  --border-hover: rgba(13, 159, 128, 0.22);
  --border-active: rgba(13, 159, 128, 0.4);
  --bar-weak: #c92a20;
  --bar-fair: #c06a12;
  --bar-good: #8a6d00;
  --bar-strong: #0a8568;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 40px rgba(13, 159, 128, 0.06);
}

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

/* ---------- Base ---------- */
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Atmospheric background gradient */
body::before {
  content: '';
  position: fixed;
  top: -30%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

/* Grid texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.3;
}

body > * {
  position: relative;
  z-index: 1;
}


/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(45, 212, 178, 0.05); }
  50% { box-shadow: 0 0 40px rgba(45, 212, 178, 0.12); }
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* ---------- Header ---------- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-text {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-stamp {
  position: relative;
  display: inline-block;
  color: #f25555;
  border: 2px solid #f25555;
  border-radius: 4px;
  padding: 1px 8px;
  transform: rotate(-3deg);
  opacity: 0.85;
  letter-spacing: 0.08em;
  overflow: hidden;
}

.brand-stamp::after {
  content: '';
  position: absolute;
  left: -10%;
  top: 50%;
  width: 120%;
  height: 2px;
  background: #f25555;
  transform: translateY(-50%) rotate(-12deg);
  transform-origin: center;
  pointer-events: none;
}

[data-theme="light"] .brand-stamp {
  color: #d4362e;
  border-color: #d4362e;
}

[data-theme="light"] .brand-stamp::after {
  background: #d4362e;
}


.brand-sub {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-top: 3px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  overflow: hidden;
}

.brand-sub::after {
  content: '';
  position: absolute;
  top: 0;
  left: -20%;
  width: 20%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--accent-glow-strong), var(--accent), var(--accent-glow-strong), transparent);
  opacity: 0.5;
  border-radius: 2px;
  pointer-events: none;
  animation: scanner-sweep 2s ease-in-out 1;
  animation-fill-mode: forwards;
}

.brand-sub:hover::after {
  animation: scanner-sweep 2s ease-in-out 1;
  animation-fill-mode: forwards;
}

@keyframes scanner-sweep {
  0% { left: -20%; opacity: 0; }
  10% { opacity: 0.5; }
  90% { opacity: 0.5; }
  100% { left: 100%; opacity: 0; }
}

#theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-tertiary);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: rotate(15deg);
}

.icon-sun, .icon-moon {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s;
}

[data-theme="light"] .icon-moon { display: none; }
:root .icon-sun { display: none; }
[data-theme="light"] .icon-sun { display: flex; }
:root .icon-moon { display: flex; }

/* ---------- SEO Top (How It Works) ---------- */
.seo-top {
  max-width: 600px;
  width: 100%;
  margin: 1.5rem auto 0;
  padding: 0 1.25rem;
  animation: fadeIn 0.5s ease both;
  animation-delay: 0.1s;
}

.seo-top-inner {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.25rem;
}

.seo-top h2 {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.6rem;
}

.brand-story {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.seo-top ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.seo-top li {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  line-height: 1.65;
  padding: 0.2rem 0 0.2rem 1.2rem;
  position: relative;
}

.seo-top li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
}

.seo-top li strong {
  color: var(--text);
  font-weight: 600;
}

/* Red pen highlighter for key phrases */
.pen-mark {
  font-style: normal;
  color: var(--text);
  font-weight: 600;
}

[data-theme="light"] .pen-mark {
  color: #0f1626;
}

.seo-top code {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  background: var(--accent-dim);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  color: var(--accent);
  border: 1px solid var(--border);
}

/* ---------- Main ---------- */
main h1 {
  font-family: var(--font-body);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 0.5rem;
  text-align: center;
}

.tool-intro {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.strength-checker-note {
  font-size: 0.65rem;
  color: var(--text-tertiary);
  margin-top: 0.5rem;
  white-space: nowrap;
}

main {
  max-width: 600px;
  width: 100%;
  margin: 1.5rem auto 2.5rem;
  padding: 0 1.25rem;
  animation: fadeIn 0.5s ease both;
  animation-delay: 0.1s;
}

/* Glassmorphic card wrapper around the tool */
main::before {
  content: '';
  position: absolute;
  inset: -1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  z-index: -1;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

/* ---------- Password Display ---------- */
.output-area {
  margin-bottom: 0;
  position: relative;
}

.password-display {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}

.password-field-wrap {
  flex: 1;
  position: relative;
}

.password-field-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  pointer-events: none;
  box-shadow: inset 0 0 20px var(--accent-glow);
  opacity: 0;
  transition: opacity 0.3s;
}

.password-field-wrap:focus-within::after {
  opacity: 1;
}

.password-field-wrap input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: var(--pw-font-size, 1.35rem);
  padding: 1.15rem 1.3rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--accent);
  letter-spacing: 2.5px;
  transition: border-color 0.3s, box-shadow 0.3s, font-size 0.15s;
  outline: none;
  text-shadow: 0 0 20px var(--accent-glow-strong);
}

.password-field-wrap input:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.char-count {
  position: absolute;
  right: 0.7rem;
  bottom: 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  pointer-events: none;
  z-index: 2;
}

.password-actions {
  display: flex;
}

.feedback {
  position: absolute;
  left: 0;
  bottom: -1.8rem;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  transition: opacity 0.3s;
  text-shadow: 0 0 10px var(--accent-glow-strong);
}

/* ---------- Complexity Slider ---------- */
.complexity-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 1rem;
}

.complexity-track {
  flex: 1;
}

.complexity-track input[type="range"] {
  width: 100%;
}

.complexity-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  min-width: 5.5rem;
  text-align: right;
  transition: color 0.3s;
  letter-spacing: 0.02em;
}

/* Step dots */
.complexity-steps {
  display: flex;
  justify-content: space-between;
  padding: 0 7px;
  margin-top: 0.35rem;
}

.complexity-steps span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.complexity-steps span.active {
  background: var(--complexity-color, var(--accent));
  box-shadow: 0 0 6px var(--complexity-color, var(--accent-glow));
  transform: scale(1.2);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
  position: relative;
  overflow: hidden;
}

.btn:hover {
  border-color: var(--border-active);
  color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn:active {
  transform: scale(0.97);
}

/* Generate button — gradient hero */
.btn.primary {
  width: 100%;
  padding: 1rem;
  background: var(--gradient);
  background-size: 200% 200%;
  color: #0a0e17;
  border: none;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius);
  margin-top: 1rem;
  letter-spacing: 0.03em;
  box-shadow: 0 4px 24px var(--accent-glow-strong);
  animation: gradient-shift 4s ease infinite;
}

[data-theme="light"] .btn.primary {
  color: #fff;
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 32px var(--accent-glow-strong), 0 0 60px var(--accent-glow);
}

.btn.primary:active {
  transform: translateY(0) scale(0.99);
  box-shadow: 0 2px 16px var(--accent-glow-strong);
}

/* Icon button (copy) */
.btn.icon {
  width: 48px;
  height: 100%;
  padding: 0;
  border-radius: var(--radius);
  color: var(--text-tertiary);
  background: var(--bg-subtle);
}

.btn.icon:hover {
  color: var(--accent);
  border-color: var(--border-active);
  background: var(--accent-dim);
}

/* Settings toggle */
.settings-toggle {
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.55rem 1rem;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 0.76rem;
  background: transparent;
  border: 1px dashed var(--border);
}

.settings-toggle:hover {
  border-style: solid;
}

.settings-toggle .chevron {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.settings-toggle.open .chevron {
  transform: rotate(180deg);
}

/* ---------- Settings Panel ---------- */
.settings-panel {
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 500px;
  opacity: 1;
}

.settings-panel.collapsed {
  max-height: 0;
  opacity: 0;
}

.settings-inner {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  margin-top: 0.75rem;
}

.setting-row {
  margin-bottom: 1rem;
}

.setting-row:last-child {
  margin-bottom: 0;
}

.setting-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.setting-row label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.setting-label-row label {
  margin-bottom: 0;
}

.setting-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 700;
}

/* Checkboxes */
.checkboxes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
}

.checkboxes label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0;
  color: var(--text-secondary);
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all 0.25s;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 500;
}

.checkboxes label:hover {
  color: var(--text);
  background: var(--accent-dim);
  border-color: var(--border);
}

.checkboxes input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.check-indicator {
  width: 18px;
  height: 18px;
  border: 2px solid var(--text-dim);
  border-radius: 5px;
  flex-shrink: 0;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.check-indicator::after {
  content: '';
  transition: all 0.15s;
}

/* Checked state — :has() with adjacent-sibling fallback for older Firefox ESR */
.checkboxes label:has(input:checked) .check-indicator,
.checkboxes input:checked + .check-indicator {
  background: var(--gradient);
  border-color: transparent;
  box-shadow: 0 0 12px var(--accent-glow);
}

.checkboxes label:has(input:checked) .check-indicator::after,
.checkboxes input:checked + .check-indicator::after {
  content: '';
  width: 4px;
  height: 9px;
  border: solid var(--bg);
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg) translateY(-1px);
}

[data-theme="light"] .checkboxes label:has(input:checked) .check-indicator::after,
[data-theme="light"] .checkboxes input:checked + .check-indicator::after {
  border-color: var(--bg-card-solid);
}

.checkboxes label:has(input:checked) {
  color: var(--text);
  background: var(--accent-dim);
  border-color: var(--border);
}

/* Dim checkboxes when custom chars override them */
.checkboxes.custom-active label {
  opacity: 0.4;
  pointer-events: none;
}

.checkboxes.custom-active label .check-indicator {
  box-shadow: none;
}

/* ---------- Range Inputs ---------- */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--text-dim);
  border-radius: 3px;
  outline: none;
  transition: background 0.2s;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gradient);
  cursor: pointer;
  border: 3px solid var(--bg-card-solid);
  box-shadow: 0 0 10px var(--accent-glow-strong), var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 20px var(--accent-glow-strong), var(--shadow-md);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gradient);
  cursor: pointer;
  border: 3px solid var(--bg-card-solid);
  box-shadow: 0 0 10px var(--accent-glow-strong);
}

input[type="text"] {
  width: 100%;
  padding: 0.6rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  transition: all 0.3s;
  outline: none;
}

input[type="text"]:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input[type="text"]::placeholder {
  color: var(--text-dim);
}

/* ---------- Strength Meter ---------- */
.strength-meter {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-top: 0.75rem;
  transition: border-color 0.3s;
}

.strength-bar-container {
  height: 6px;
  background: var(--text-dim);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.6rem;
  position: relative;
}

.strength-bar {
  height: 100%;
  width: 0;
  border-radius: 3px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1), background 0.4s ease;
  position: relative;
}

.strength-bar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  background-size: 200% 100%;
  animation: shimmer 2s ease infinite;
}

.strength-details {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.72rem;
  color: var(--text-tertiary);
}

#strength-label {
  font-weight: 700;
  font-size: 0.73rem;
  letter-spacing: 0.02em;
}

#entropy-display,
#crack-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dim);
}

/* ---------- Hints ---------- */
.hint-wrap {
  position: relative;
  cursor: help;
}

.hint-wrap > span:first-child {
  transition: color 0.2s;
}

.hint-wrap:hover > span:first-child {
  color: var(--accent);
}

.hint {
  display: none;
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  font-size: 0.68rem;
  color: var(--text-secondary);
  white-space: normal;
  width: max-content;
  max-width: 80vw;
  z-index: 20;
  box-shadow: var(--shadow-md);
  pointer-events: none;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hint::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--border-hover);
}

.hint-wrap:hover .hint,
.hint-wrap:focus-within .hint {
  display: block;
}

/* ---------- SEO Content ---------- */
.seo-content {
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
  padding: 0 1.25rem 2rem;
  animation: fadeInUp 0.5s ease both;
  animation-delay: 0.3s;
}

.seo-inner {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.seo-content h2 {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  margin-top: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.seo-content h2:first-child {
  margin-top: 0;
}

.seo-content p {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  line-height: 1.7;
  margin-bottom: 0.6rem;
}

.seo-content ul {
  list-style: none;
  padding: 0;
  margin-bottom: 0.6rem;
}

.seo-content li {
  font-size: 0.78rem;
  color: var(--text-tertiary);
  line-height: 1.7;
  padding: 0.3rem 0;
  padding-left: 1.2rem;
  position: relative;
}

.seo-content li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.4;
}

.seo-content code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--accent-dim);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  color: var(--accent);
  border: 1px solid var(--border);
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item:has(.faq-question:hover) {
  border-color: var(--border-hover);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.7rem 1rem;
  background: var(--bg-card);
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: all 0.25s;
}

.faq-question::after {
  content: '+';
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text-tertiary);
  flex-shrink: 0;
  margin-left: 0.5rem;
  transition: all 0.3s;
  font-family: var(--font-mono);
}

.faq-question[aria-expanded="true"]::after {
  content: '\2212';
  color: var(--accent);
  transform: rotate(180deg);
}

.faq-question:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

.faq-answer {
  padding: 0 1rem 0.8rem;
  background: var(--bg-card);
}

.faq-answer p {
  margin-bottom: 0;
}

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 0.8rem;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.65rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.security-badge svg {
  color: var(--accent);
  opacity: 0.7;
}

/* ---------- Utilities ---------- */
.hidden {
  display: none !important;
}

/* ---------- Focus Visible ---------- */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

/* ---------- Selection ---------- */
::selection {
  background: rgba(45, 212, 178, 0.25);
}

[data-theme="light"] ::selection {
  background: rgba(13, 159, 128, 0.2);
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--text-dim);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* ---------- Responsive ---------- */
@media (max-width: 500px) {
  header {
    padding: 0.75rem 1rem;
  }

  main,
  .seo-top,
  .seo-content {
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }

  main::before {
    inset: -0.5rem;
  }

  .checkboxes {
    grid-template-columns: 1fr;
  }

  .strength-details {
    flex-direction: column;
    gap: 0.25rem;
  }

  .password-field-wrap input {
    font-size: 0.95rem;
    padding: 0.75rem 0.85rem;
    letter-spacing: 1.5px;
  }

  .btn.icon {
    width: 44px;
    height: 44px;
  }

  .strength-checker-note {
    white-space: normal;
  }

  .btn.primary {
    padding: 0.85rem;
    font-size: 0.92rem;
  }
}

@media (max-width: 360px) {
  .brand-sub {
    display: none;
  }

  .hint {
    white-space: normal;
  }
}