/* ═══════════════════════════════════════════════════════════════
   SecurePass PRO — Ultra-Premium Password Strength Checker
   style.css
   ═══════════════════════════════════════════════════════════════ */

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

:root {
  --font: "Inter", system-ui, sans-serif;
  --mono: "JetBrains Mono", monospace;

  --bg-start: #06060f;
  --bg-end:   #0c0c24;

  --card-bg: rgba(255,255,255,.03);
  --card-border: rgba(255,255,255,.06);
  --card-glow: rgba(124,92,252,.08);
  --glass-blur: 28px;

  --text-primary:  #eaeaff;
  --text-secondary: #9d9db8;
  --text-muted:     #4e4e6e;

  --weak:   #ff4d6a;
  --fair:   #ffa838;
  --strong: #46e0a0;
  --very-strong: #38bdf8;

  --accent: #7c5cfc;
  --accent-2: #c084fc;
  --accent-glow: rgba(124,92,252,.3);

  --comp-lower: #7c5cfc;
  --comp-upper: #c084fc;
  --comp-digit: #ffa838;
  --comp-symbol: #ff4d6a;

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

html { font-size:16px; -webkit-font-smoothing:antialiased; }

body {
  font-family: var(--font);
  background: linear-gradient(145deg, var(--bg-start), var(--bg-end));
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  position: relative;
}

/* ── Particle Canvas ─────────────────────────────────────────── */
#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── Confetti Canvas ─────────────────────────────────────────── */
#confetti-canvas {
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}

/* ── Container ───────────────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 480px;
  padding: 20px;
}

/* ── Glass Card ──────────────────────────────────────────────── */
.card {
  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: 36px 32px 28px;
  box-shadow:
    0 0 60px -12px var(--card-glow),
    0 8px 32px rgba(0,0,0,.5),
    inset 0 1px 0 rgba(255,255,255,.05);
  animation: cardIn .7s cubic-bezier(.22,1,.36,1) both;
  overflow: hidden;
}

/* Gradient border glow */
.card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--accent), var(--accent-2), var(--strong), var(--accent));
  background-size: 300% 300%;
  animation: borderShimmer 6s ease infinite;
  z-index: -1;
  opacity: .25;
}

@keyframes borderShimmer {
  0%,100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

@keyframes cardIn {
  from { opacity:0; transform:translateY(24px) scale(.98); }
}

/* ── Brand ───────────────────────────────────────────────────── */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin-bottom: 4px;
}

.brand-icon-wrap {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 12px;
  box-shadow: 0 4px 16px var(--accent-glow);
}

.brand-icon { color: #fff; }

.brand-text {
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -.5px;
  background: linear-gradient(135deg, #fff 20%, var(--accent-2) 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pro-badge {
  font-size: .55rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 3px 8px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  align-self: flex-start;
  margin-top: 4px;
}

.tagline {
  text-align: center;
  font-size: .8rem;
  color: var(--text-secondary);
  margin-bottom: 26px;
  min-height: 1.3em;
  font-weight: 400;
}

.tagline .cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent);
  margin-left: 2px;
  animation: blink .7s step-end infinite;
  vertical-align: text-bottom;
}

@keyframes blink {
  50% { opacity:0; }
}

/* ── Input Group ─────────────────────────────────────────────── */
.input-group { margin-bottom: 18px; }

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 14px;
  color: var(--text-muted);
  pointer-events: none;
  transition: color var(--transition);
}

#password-input {
  width: 100%;
  padding: 13px 90px 13px 42px;
  background: rgba(255,255,255,.04);
  border: 1.5px solid rgba(255,255,255,.07);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--mono);
  font-size: .9rem;
  letter-spacing: .5px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#password-input::placeholder {
  color: var(--text-muted);
  font-family: var(--font);
}

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

.input-wrapper:focus-within .input-icon { color: var(--accent); }

.length-badge {
  position: absolute;
  right: 46px;
  font-size: .65rem;
  font-weight: 600;
  font-family: var(--mono);
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(255,255,255,.06);
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
  pointer-events: none;
}

.length-badge.active {
  background: var(--accent-glow);
  color: var(--accent);
}

.toggle-vis {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  display: flex;
  transition: color var(--transition);
}

.toggle-vis:hover { color: var(--text-primary); }

.eye-closed { display:none; }
.input-wrapper.visible .eye-open  { display:none; }
.input-wrapper.visible .eye-closed { display:block; }

/* ── Segmented Strength Meter ────────────────────────────────── */
.meter-section {
  margin-bottom: 14px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition);
}

.meter-section.active { opacity:1; transform:translateY(0); }

.meter-segments {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
}

.segment {
  flex: 1;
  height: 5px;
  border-radius: 999px;
  background: rgba(255,255,255,.06);
  transition: background .4s ease, box-shadow .4s ease;
  position: relative;
  overflow: hidden;
}

.segment.lit::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: inherit;
  animation: segPulse 1.5s ease infinite;
}

@keyframes segPulse {
  0%,100% { opacity:1; }
  50% { opacity:.7; }
}

.segment.weak   { background: var(--weak);   box-shadow: 0 0 10px rgba(255,77,106,.3); }
.segment.fair   { background: var(--fair);   box-shadow: 0 0 10px rgba(255,168,56,.3); }
.segment.strong { background: var(--strong); box-shadow: 0 0 10px rgba(70,224,160,.3); }
.segment.very-strong { background: var(--very-strong); box-shadow: 0 0 10px rgba(56,189,248,.3); }

.meter-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.strength-label {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .6px;
  transition: color var(--transition);
}

.entropy-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .7rem;
  font-weight: 500;
  font-family: var(--mono);
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
}

/* ── Time to Crack ───────────────────────────────────────────── */
.crack-time {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  animation: fadeIn .4s ease;
}

.crack-icon {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  background: rgba(255,255,255,.04);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.crack-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.crack-label {
  font-size: .68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}

.crack-value {
  font-size: .95rem;
  font-weight: 700;
  font-family: var(--mono);
  transition: color var(--transition);
}

/* ── Character Composition ───────────────────────────────────── */
.composition {
  margin-bottom: 14px;
  animation: fadeIn .4s ease;
}

.composition-title {
  font-size: .68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 8px;
  display: block;
}

.comp-bar {
  display: flex;
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255,255,255,.04);
  margin-bottom: 8px;
}

.comp-fill {
  height: 100%;
  transition: width .5s cubic-bezier(.4,0,.2,1);
  min-width: 0;
  position: relative;
}

.comp-lower  { background: var(--comp-lower); }
.comp-upper  { background: var(--comp-upper); }
.comp-digit  { background: var(--comp-digit); }
.comp-symbol { background: var(--comp-symbol); }

.comp-legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.comp-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .65rem;
  color: var(--text-secondary);
}

.comp-tag i {
  width: 8px; height: 8px;
  border-radius: 2px;
  display: inline-block;
}

.tag-lower i { background: var(--comp-lower); }
.tag-upper i { background: var(--comp-upper); }
.tag-digit i { background: var(--comp-digit); }
.tag-symbol i { background: var(--comp-symbol); }

/* ── Common Warning ──────────────────────────────────────────── */
.common-warning {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,77,106,.1);
  border: 1px solid rgba(255,77,106,.2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: .78rem;
  color: var(--weak);
  animation: shakeIn .45s ease;
}

@keyframes shakeIn {
  0%   { transform:translateX(-6px); opacity:0; }
  25%  { transform:translateX(4px); }
  50%  { transform:translateX(-2px); }
  100% { transform:translateX(0); opacity:1; }
}

/* ── Breach Section ──────────────────────────────────────────── */
.breach-section {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,168,56,.08);
  border: 1px solid rgba(255,168,56,.15);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 14px;
  font-size: .78rem;
  color: var(--fair);
}

/* ── Suggestions ─────────────────────────────────────────────── */
.suggestions {
  list-style: none;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.suggestions li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .75rem;
  color: var(--text-secondary);
  padding: 5px 0;
  animation: fadeSlide .3s ease both;
}

.suggestions li svg { flex-shrink:0; }

.suggestions li .sug-icon {
  width: 20px; height: 20px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 6px;
  background: rgba(124,92,252,.1);
  color: var(--accent);
  transition: all var(--transition);
}

.suggestions li.met .sug-icon {
  background: rgba(70,224,160,.12);
  color: var(--strong);
}

.suggestions li.met span {
  color: var(--strong);
  text-decoration: line-through;
  opacity: .5;
}

@keyframes fadeSlide {
  from { opacity:0; transform:translateX(-8px); }
}

@keyframes fadeIn {
  from { opacity:0; transform:translateY(4px); }
}

/* ── Generator ───────────────────────────────────────────────── */
.generator-section { margin-bottom: 14px; }

.generator-row {
  display: flex;
  gap: 8px;
}

.btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: .78rem;
  font-weight: 600;
  padding: 12px 16px;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--x,50%) var(--y,50%), rgba(255,255,255,.15), transparent 60%);
  opacity: 0;
  transition: opacity .3s;
}

.btn:hover::after { opacity:1; }
.btn:active { transform:scale(.97); }

.btn-generate {
  background: linear-gradient(135deg, var(--accent), #9b7afc);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-generate:hover {
  box-shadow: 0 6px 28px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-copy {
  background: rgba(255,255,255,.05);
  color: var(--text-secondary);
  border: 1px solid rgba(255,255,255,.08);
}

.btn-copy:hover:not(:disabled) {
  background: rgba(255,255,255,.09);
  color: var(--text-primary);
}

.btn-copy:disabled { opacity:.3; cursor:not-allowed; }

.btn-copy.copied {
  background: rgba(70,224,160,.12);
  border-color: rgba(70,224,160,.25);
  color: var(--strong);
}

/* ── History ─────────────────────────────────────────────────── */
.history-section {
  margin-bottom: 14px;
  animation: fadeIn .4s ease;
}

.history-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font);
  font-size: .72rem;
  cursor: pointer;
  padding: 6px 0;
  width: 100%;
  transition: color var(--transition);
}

.history-toggle:hover { color: var(--text-secondary); }

.history-toggle .chevron {
  margin-left: auto;
  transition: transform var(--transition);
}

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

.history-list {
  list-style: none;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.history-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.04);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: .72rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition);
  animation: fadeSlide .25s ease both;
}

.history-list li:hover {
  background: rgba(255,255,255,.06);
}

.history-list li .hist-use {
  font-family: var(--font);
  font-size: .62rem;
  color: var(--accent);
  opacity: 0;
  transition: opacity .2s;
}

.history-list li:hover .hist-use { opacity:1; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer { text-align: center; }

.security-badges {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 8px;
}

.sec-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .6rem;
  color: var(--text-muted);
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.04);
}

.footer-note {
  font-size: .62rem;
  color: var(--text-muted);
  letter-spacing: .3px;
}

/* ── Utility ─────────────────────────────────────────────────── */
.hidden { display:none !important; }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width:540px) {
  .card { padding:28px 18px 22px; border-radius:var(--radius-md); }
  .brand-text { font-size:1.3rem; }
  .generator-row { flex-direction:column; }
  .btn { width:100%; }
  .comp-legend { gap:8px; }
  .security-badges { flex-direction:column; align-items:center; gap:6px; }
}