/* ============================================
   Password Generator
   ============================================ */

html { background-color: #0d9488; }

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: linear-gradient(135deg, #0d9488 0%, #0f766e 100%);
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.04) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ======================
   HEADER
   ====================== */

.header {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.18);
  padding: var(--space-3) 0;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.header-content { display: flex; align-items: center; gap: var(--space-4); }

.logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: white;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.1);
  transition: all var(--transition-base);
  flex-shrink: 0;
}
.logo-link:hover { background: rgba(255,255,255,0.2); transform: translateY(-1px); }
.logo-text { color: white; }
.logo-dot { color: #fbbf24; animation: pulse 2s ease-in-out infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.7; transform: scale(1.2); }
}

.title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: rgba(255,255,255,0.9);
  flex: 1;
}

/* ======================
   PAGE BODY
   ====================== */

.page-body {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas: "content";
  position: relative;
  z-index: 1;
}

.ad-sidebar { display: none; align-self: flex-start; padding: var(--space-8) 0; }
.ad-sidebar-left  { grid-area: ad-left;  justify-self: center; }
.ad-sidebar-right { grid-area: ad-right; justify-self: center; }
.ad-sticky { position: sticky; top: var(--space-4); }
.ad-placeholder {
  display: flex; align-items: center; justify-content: center;
  text-align: center; width: 160px; height: 600px;
  background: rgba(255,255,255,0.08); border: 2px dashed rgba(255,255,255,0.2);
  border-radius: var(--radius-md); color: rgba(255,255,255,0.4);
  font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.05em; line-height: 1.4;
}

.main-content {
  grid-area: content;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-8) var(--space-4);
  gap: var(--space-6);
}

/* ======================
   CARD
   ====================== */

.pw-card {
  width: 100%;
  max-width: 540px;
  background: rgba(255,255,255,0.97);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-6) var(--space-4);
  box-shadow: 0 24px 64px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.15);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* ======================
   TAB BAR
   ====================== */

.tab-bar {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
}

.tab-btn {
  padding: 5px var(--space-3);
  background: var(--color-gray-100);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-gray-500);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.tab-btn:hover { background: var(--color-gray-200); color: var(--color-gray-700); }
.tab-btn.active { background: #0d9488; border-color: #0d9488; color: white; }

.tab-panel { display: flex; flex-direction: column; gap: var(--space-5); }
.tab-panel.hidden { display: none !important; }

/* ======================
   CONTROL GROUPS
   ====================== */

.control-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.control-label {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.control-value {
  font-variant-numeric: tabular-nums;
  color: var(--color-gray-700);
  background: var(--color-gray-100);
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
}

/* Slider row */
.slider-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.slider-row input[type="range"] {
  flex: 1;
  height: 4px;
  appearance: none;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
}
.slider-row input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #0d9488;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(13,148,136,0.4);
  transition: transform var(--transition-fast);
}
.slider-row input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.2); }
.slider-row input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px; border-radius: 50%;
  background: #0d9488; border: none; cursor: pointer;
}

.num-input {
  width: 56px;
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-align: center;
  color: var(--color-gray-800);
  background: var(--color-gray-50);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  -moz-appearance: textfield;
  flex-shrink: 0;
}
.num-input::-webkit-inner-spin-button,
.num-input::-webkit-outer-spin-button { -webkit-appearance: none; }
.num-input:focus { outline: none; border-color: #0d9488; background: white; }

/* Toggle buttons */
.toggle-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.toggle-btn {
  padding: 5px var(--space-3);
  background: var(--color-gray-100);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  font-family: var(--font-mono);
  color: var(--color-gray-500);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.toggle-btn:hover { background: var(--color-gray-200); color: var(--color-gray-700); }
.toggle-btn.active {
  background: #0d9488; border-color: #0d9488; color: white;
  box-shadow: 0 2px 6px rgba(13,148,136,0.3);
}
.toggle-btn.disabled-look {
  opacity: 0.45;
  cursor: default;
}

/* Count buttons */
.count-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
}

.count-btn {
  min-width: 40px;
  padding: 5px var(--space-3);
  background: var(--color-gray-100);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-gray-500);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.count-btn:hover { background: var(--color-gray-200); color: var(--color-gray-700); }
.count-btn.active {
  background: #0d9488; border-color: #0d9488; color: white;
  box-shadow: 0 2px 6px rgba(13,148,136,0.3);
}

/* Option row */
.option-row {
  display: flex;
  align-items: center;
}

.option-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  cursor: pointer;
  user-select: none;
}
.option-check input { cursor: pointer; }
.option-hint {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  font-family: var(--font-mono);
}

/* ======================
   OUTPUT AREA
   ====================== */

.output-area {
  background: var(--color-gray-50);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  min-height: 72px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pw-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  color: var(--color-gray-400);
  font-size: var(--text-sm);
  text-align: center;
}

.pw-single { display: flex; }

.pw-display {
  flex: 1;
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-mono);
  font-size: clamp(var(--text-sm), 2.2vw, var(--text-base));
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  word-break: break-all;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

/* Passphrase output - larger text */
.pp-display {
  font-size: clamp(var(--text-sm), 2vw, var(--text-base));
  color: var(--color-gray-700);
  letter-spacing: 0.02em;
  min-height: 56px;
  display: flex;
  align-items: center;
}

/* Multi-password bulk output */
.pw-bulk {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-gray-800);
  background: transparent;
  border: none;
  resize: none;
  outline: none;
  line-height: 1.8;
  max-height: 220px;
  overflow-y: auto;
}

/* ======================
   STRENGTH BAR
   ====================== */

.strength-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.strength-bar-track {
  flex: 1;
  height: 6px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.strength-bar-fill {
  height: 100%;
  width: 0%;
  border-radius: var(--radius-full);
  transition: width 0.3s ease, background-color 0.3s ease;
}

.strength-bar-fill.very-weak  { background: #ef4444; }
.strength-bar-fill.weak       { background: #f97316; }
.strength-bar-fill.fair       { background: #eab308; }
.strength-bar-fill.strong     { background: #22c55e; }
.strength-bar-fill.very-strong{ background: #10b981; }

.strength-label {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  white-space: nowrap;
  min-width: 72px;
}
.strength-label.very-weak  { color: #ef4444; }
.strength-label.weak       { color: #f97316; }
.strength-label.fair       { color: #eab308; }
.strength-label.strong     { color: #22c55e; }
.strength-label.very-strong{ color: #10b981; }

.strength-entropy {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  font-family: var(--font-mono);
  white-space: nowrap;
}

/* ======================
   STRENGTH CHECKER
   ====================== */

.checker-input-wrap {
  position: relative;
}

.checker-input {
  width: 100%;
  padding: var(--space-3) 48px var(--space-3) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-gray-900);
  background: var(--color-gray-50);
  border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-base);
}
.checker-input:focus {
  outline: none;
  border-color: #0d9488;
  background: white;
  box-shadow: 0 0 0 3px rgba(13,148,136,0.12);
}
.checker-input::placeholder { color: var(--color-gray-400); }

.show-hide-btn {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: none;
  border: none;
  color: var(--color-gray-400);
  cursor: pointer;
  transition: color var(--transition-fast);
}
.show-hide-btn:hover { color: var(--color-gray-600); }

.checker-stats {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-gray-100);
  border-bottom: 1px solid var(--color-gray-100);
}

.stat-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
}

.stat-name {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-hint {
  font-size: 10px;
  font-weight: var(--font-normal);
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-gray-400);
}

.stat-value {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-gray-800);
}

/* Checklist */
.checklist {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-3);
}

.check-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  transition: color var(--transition-fast);
}

.check-icon {
  font-size: var(--text-base);
  line-height: 1;
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  transition: color var(--transition-fast);
}

.check-item.pass { color: #22c55e; }
.check-item.pass .check-icon { color: #22c55e; }
.check-item.fail { color: #ef4444; }
.check-item.fail .check-icon { color: #ef4444; }

/* ======================
   ACTION ROW
   ====================== */

.action-row { display: flex; gap: var(--space-3); }
.action-row .btn { flex: 1; }

/* ======================
   FAQ SECTION
   ====================== */

.faq-section {
  width: 100%;
  max-width: 540px;
}

.faq-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-4);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.faq-item {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: background var(--transition-fast);
}
.faq-item[open] { background: rgba(255,255,255,0.18); }

.faq-question {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: rgba(255,255,255,0.92);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::after {
  content: '+';
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: rgba(255,255,255,0.6);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  margin-left: var(--space-3);
}
.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--space-5) var(--space-4);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}
.faq-answer code, .faq-answer em {
  font-family: var(--font-mono);
  font-style: normal;
  background: rgba(255,255,255,0.15);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.9em;
}

/* ======================
   RELATED TOOLS
   ====================== */

.related-section {
  width: 100%;
  max-width: 540px;
}

.related-title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-4);
}

.related-grid {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.related-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-fast);
  flex: 1;
  min-width: 160px;
}
.related-card:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.related-icon {
  font-size: var(--text-xl);
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.related-name {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: rgba(255,255,255,0.9);
}

.related-desc {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.55);
  margin-top: 2px;
}

/* ======================
   STATUS BAR
   ====================== */

.status-bar {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: var(--space-2) 0;
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}
.status-content { display: flex; align-items: center; gap: var(--space-6); font-size: var(--text-sm); }
.status-item { display: flex; align-items: center; gap: var(--space-2); }
.status-label { color: rgba(255,255,255,0.65); font-weight: var(--font-medium); }
#status-mode, #status-length, #status-security { color: white; font-weight: var(--font-semibold); }

/* ============================================
   WIDE DESKTOP
   ============================================ */

@media (min-width: 1400px) {
  .page-body {
    grid-template-columns: 200px 1fr 200px;
    grid-template-areas: "ad-left content ad-right";
  }
  .ad-sidebar { display: block; }
}

/* ============================================
   MOBILE
   ============================================ */

@media (max-width: 479px) {
  .header { padding: var(--space-2) 0; }
  .title  { font-size: var(--text-sm); }
  .logo-link { font-size: var(--text-sm); padding: var(--space-1) var(--space-2); }
  .main-content { padding: var(--space-4) var(--space-3); }
  .pw-card { padding: var(--space-4); gap: var(--space-4); }
  .action-row { flex-direction: column; }
  .status-content { gap: var(--space-3); font-size: var(--text-xs); flex-wrap: wrap; }
  .toggle-row { gap: var(--space-1); }
  .related-grid { flex-direction: column; }
  .pw-display { font-size: var(--text-sm); }
}

/* ============================================
   DARK MODE
   ============================================ */

html[data-theme="dark"] { background-color: #0f172a; }
[data-theme="dark"] body { background: #0f172a; }
[data-theme="dark"] .header { background: rgba(0,0,0,0.3); border-bottom-color: rgba(255,255,255,0.08); }

[data-theme="dark"] .pw-card {
  background: rgba(15,23,42,0.95);
  box-shadow: 0 24px 64px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
}

[data-theme="dark"] .tab-btn { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--color-gray-500); }
[data-theme="dark"] .tab-btn:hover { background: rgba(255,255,255,0.12); color: var(--color-gray-300); }
[data-theme="dark"] .tab-btn.active { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.3); color: white; }

[data-theme="dark"] .control-label { color: var(--color-gray-500); }
[data-theme="dark"] .control-value { background: rgba(255,255,255,0.1); color: var(--color-gray-300); }

[data-theme="dark"] .slider-row input[type="range"] { background: rgba(255,255,255,0.15); }
[data-theme="dark"] .slider-row input[type="range"]::-webkit-slider-thumb { background: #2dd4bf; }
[data-theme="dark"] .slider-row input[type="range"]::-moz-range-thumb { background: #2dd4bf; }

[data-theme="dark"] .num-input { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--color-gray-200); }
[data-theme="dark"] .num-input:focus { border-color: #2dd4bf; background: rgba(255,255,255,0.1); }

[data-theme="dark"] .toggle-btn { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--color-gray-400); }
[data-theme="dark"] .toggle-btn:hover { background: rgba(255,255,255,0.12); color: var(--color-gray-200); }
[data-theme="dark"] .toggle-btn.active { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.3); color: white; }

[data-theme="dark"] .count-btn { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--color-gray-400); }
[data-theme="dark"] .count-btn:hover { background: rgba(255,255,255,0.12); color: var(--color-gray-200); }
[data-theme="dark"] .count-btn.active { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.3); color: white; }

[data-theme="dark"] .option-check { color: var(--color-gray-400); }
[data-theme="dark"] .option-hint { color: var(--color-gray-600); }

[data-theme="dark"] .output-area { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.1); }
[data-theme="dark"] .pw-display { color: var(--color-gray-100); }
[data-theme="dark"] .pp-display { color: var(--color-gray-200); }
[data-theme="dark"] .pw-placeholder { color: var(--color-gray-600); }
[data-theme="dark"] .pw-bulk { color: var(--color-gray-100); }

[data-theme="dark"] .strength-bar-track { background: rgba(255,255,255,0.12); }
[data-theme="dark"] .strength-entropy { color: var(--color-gray-600); }

[data-theme="dark"] .checker-input { background: rgba(255,255,255,0.06); border-color: rgba(255,255,255,0.12); color: var(--color-gray-100); }
[data-theme="dark"] .checker-input:focus { border-color: #2dd4bf; background: rgba(255,255,255,0.08); }
[data-theme="dark"] .checker-input::placeholder { color: var(--color-gray-600); }
[data-theme="dark"] .show-hide-btn { color: var(--color-gray-600); }
[data-theme="dark"] .show-hide-btn:hover { color: var(--color-gray-400); }

[data-theme="dark"] .checker-stats { border-color: rgba(255,255,255,0.08); }
[data-theme="dark"] .stat-name { color: var(--color-gray-500); }
[data-theme="dark"] .stat-hint { color: var(--color-gray-600); }
[data-theme="dark"] .stat-value { color: var(--color-gray-200); }
[data-theme="dark"] .check-item { color: var(--color-gray-500); }

[data-theme="dark"] .status-bar { background: rgba(0,0,0,0.25); border-top-color: rgba(255,255,255,0.08); }
[data-theme="dark"] .ad-placeholder { background: rgba(0,0,0,0.2); border-color: rgba(255,255,255,0.1); }

/* ── About/Related fix: allow scrolling past tool UI ─────────────────────── */
.main-content { overflow-y: auto; }

/* ── Compact header ─────────────────────────────────────────────────────── */
.header { padding: var(--space-1) 0; }
.logo-link { font-size: var(--text-sm); padding: var(--space-1) var(--space-2); }
.title { font-size: var(--text-sm); }

/* ── Mobile: natural page scroll ────────────────────────────────────────── */
@media (max-width: 767px) {
  body { height: auto; min-height: 100vh; overflow-y: auto; }
  .page-body { overflow: visible; }
  .main-content { overflow: visible !important; padding-bottom: var(--space-8); }
}