/* ===========================
   VARIABLES & RESET
=========================== */
:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface-2: #1f2630;

  --border: rgba(0, 255, 170, 0.12);
  --border-strong: rgba(0, 255, 170, 0.35);

  --primary: #00ffa3;
  --primary-dim: rgba(0, 255, 163, 0.15);

  --text-1: #e6edf3;
  --text-2: #8b949e;
  --text-3: #484f58;

  --red: #ff4d4d;
  --amber: #facc15;
  --green: #00ffa3;

  --radius: 14px;
  --radius-sm: 10px;
  --font-display: "Orbitron", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-display);
  background: radial-gradient(circle at 20% 20%, #0f172a, #020617);
  background-attachment: fixed;
  color: var(--text-1);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ===========================
   LAYOUT
=========================== */
.wrapper {
  position: relative;
  z-index: 1;
  max-width: 520px;
  margin: 0 auto;
  padding: 40px 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ===========================
   HEADER
=========================== */
.site-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding-bottom: 4px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  color: var(--primary);
  box-shadow: 0 0 15px var(--primary-dim);
}

.logo-text {
  font-size: 1.6rem;
  font-weight: 400;
  letter-spacing: 1px;
  color: var(--text-1);
}

.logo-text strong {
  font-weight: 800;
  color: var(--primary);
  text-shadow: 0 0 10px var(--primary-dim);
}

.tagline {
  font-size: 0.78rem;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ===========================
   CARD
=========================== */
.card {
  background: linear-gradient(145deg, #161b22, #0f141a);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow:
    0 0 0 1px rgba(0, 255, 163, 0.05),
    0 10px 40px rgba(0, 0, 0, 0.8),
    0 0 25px rgba(0, 255, 163, 0.05);
  backdrop-filter: blur(10px);
  transition:
    border var(--transition),
    box-shadow var(--transition);
}

.card:hover {
  border: 1px solid var(--border-strong);
  box-shadow:
    0 0 0 1px rgba(0, 255, 163, 0.15),
    0 0 20px rgba(0, 255, 163, 0.2);
}

/* ===========================
   PASSWORD DISPLAY
=========================== */
.password-display {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 64px;
  position: relative;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}

.password-display:hover {
  border-color: var(--border-strong);
  box-shadow: 0 0 15px var(--primary-dim);
}

.password-text {
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 1.2rem;
  letter-spacing: 2px;
  word-break: break-all;
  line-height: 1.5;
  flex: 1;
  transition: opacity 0.18s;
}

.password-text.placeholder {
  color: var(--text-3);
  font-style: italic;
  font-family: var(--font-display);
  letter-spacing: normal;
}

.password-text.animating {
  opacity: 0.3;
}

.display-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-2);
  transition: all var(--transition);
}

.icon-btn:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  color: var(--primary);
  transform: scale(1.05);
}

.icon-btn:active {
  transform: scale(0.95);
}

.hidden {
  display: none !important;
}

.copy-toast {
  position: absolute;
  top: -42px;
  right: 0;
  background: var(--primary);
  color: #000;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 8px;
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 0.25s,
    transform 0.25s;
  pointer-events: none;
  white-space: nowrap;
  letter-spacing: 1px;
}

.copy-toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   STRENGTH
=========================== */
.strength-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.strength-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.strength-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-3);
}

.strength-value {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color var(--transition);
}

.strength-value.weak {
  color: var(--red);
}
.strength-value.medium {
  color: var(--amber);
}
.strength-value.strong {
  color: var(--primary);
  text-shadow: 0 0 8px var(--primary-dim);
}

.strength-bar-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}

.strength-bar-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  transition:
    width 0.5s cubic-bezier(0.4, 0, 0.2, 1),
    background 0.4s;
}

.strength-bar-fill.weak {
  background: linear-gradient(90deg, #ff4d4d, #ff6b6b);
  width: 28%;
}

.strength-bar-fill.medium {
  background: linear-gradient(90deg, #facc15, #fde047);
  width: 62%;
}

.strength-bar-fill.strong {
  background: linear-gradient(90deg, #00ffa3, #00ffcc);
  box-shadow: 0 0 10px #00ffa3;
  width: 100%;
}

.crack-time {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.82rem;
  color: var(--text-2);
  line-height: 1.4;
}

.crack-icon {
  font-size: 0.95rem;
  color: var(--primary);
  flex-shrink: 0;
}

/* ===========================
   DIVIDER
=========================== */
.section-divider {
  height: 1px;
  background: var(--border);
  margin: 0 -4px;
}

/* ===========================
   CONTROLS
=========================== */
.controls-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.control-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-2);
}

.control-value {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--primary);
  font-weight: 700;
  background: var(--primary-dim);
  border: 1px solid var(--border-strong);
  padding: 4px 12px;
  border-radius: 6px;
  letter-spacing: 1px;
  min-width: 44px;
  text-align: center;
}

/* Slider */
.slider-wrapper {
  position: relative;
  height: 20px;
  display: flex;
  align-items: center;
}

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  position: relative;
  z-index: 1;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 3px solid var(--surface-2);
  box-shadow: 0 0 10px var(--primary);
  transition:
    transform 0.15s,
    box-shadow 0.15s;
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 0 15px var(--primary);
}

.slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 3px solid var(--surface-2);
  box-shadow: 0 0 10px var(--primary);
}

.slider-limits {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-3);
  font-family: var(--font-mono);
  margin-top: -4px;
}

/* Options grid */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.option-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: all var(--transition);
  user-select: none;
}

.option-toggle:hover {
  border-color: var(--border-strong);
  background: rgba(0, 255, 170, 0.03);
}

.option-toggle input[type="checkbox"] {
  display: none;
}

/* Custom toggle switch */
.toggle-track {
  width: 36px;
  height: 20px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  position: relative;
  flex-shrink: 0;
  transition: background var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--text-2);
  border-radius: 50%;
  transition:
    transform var(--transition),
    background var(--transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.option-toggle input:checked ~ .toggle-track {
  background: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 10px var(--primary-dim);
}

.option-toggle input:checked ~ .toggle-track .toggle-thumb {
  transform: translateX(16px);
  background: #000;
}

.option-toggle input:checked ~ .option-label {
  color: var(--text-1);
}

.option-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-2);
  transition: color var(--transition);
  letter-spacing: 0.5px;
}

.option-icon {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--primary);
  width: 18px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.8;
}

/* ===========================
   GENERATE BUTTON
=========================== */
.generate-section {
  margin-top: 8px;
}

.btn-generate {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 24px;
  background: var(--primary);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 15px rgba(0, 255, 163, 0.4);
}

.btn-generate:hover {
  transform: translateY(-2px);
  background: #00ffcc;
  box-shadow: 0 0 25px rgba(0, 255, 163, 0.6);
}

.btn-generate:active {
  transform: translateY(0px) scale(0.98);
  box-shadow: 0 0 10px rgba(0, 255, 163, 0.4);
}

.btn-generate.spinning .btn-icon svg {
  animation: spin 0.6s linear;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.btn-icon,
.btn-label {
  position: relative;
  z-index: 1;
}

/* ===========================
   HISTORY
=========================== */
.history-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-3);
}

.history-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-empty {
  text-align: center;
  color: var(--text-3);
  font-size: 0.85rem;
  padding: 20px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.2);
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}

.history-item:hover {
  border-color: var(--border-strong);
  box-shadow: 0 0 10px var(--primary-dim);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.history-password {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-1);
  letter-spacing: 1px;
  word-break: break-all;
  flex: 1;
}

.history-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.badge {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 4px 8px;
  border-radius: 4px;
}

.badge.weak {
  background: rgba(255, 77, 77, 0.15);
  color: var(--red);
  border: 1px solid rgba(255, 77, 77, 0.3);
}
.badge.medium {
  background: rgba(250, 204, 21, 0.15);
  color: var(--amber);
  border: 1px solid rgba(250, 204, 21, 0.3);
}
.badge.strong {
  background: var(--primary-dim);
  color: var(--primary);
  border: 1px solid var(--border-strong);
}

.history-copy-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-2);
  transition: all var(--transition);
  flex-shrink: 0;
}

.history-copy-btn:hover {
  background: var(--primary-dim);
  border-color: var(--primary);
  color: var(--primary);
}

/* ===========================
   PASSWORD SHAKE ANIMATION
=========================== */
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-5px);
  }
  40% {
    transform: translateX(5px);
  }
  60% {
    transform: translateX(-3px);
  }
  80% {
    transform: translateX(3px);
  }
}

.password-display.shake {
  animation: shake 0.4s ease;
  border-color: var(--red);
  box-shadow: 0 0 15px rgba(255, 77, 77, 0.3);
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 480px) {
  .wrapper {
    padding: 24px 16px 48px;
    gap: 18px;
  }

  .card {
    padding: 20px 16px;
    gap: 20px;
  }

  .options-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .option-label {
    font-size: 0.8rem;
  }

  .password-text {
    font-size: 1rem;
  }

  .logo-text {
    font-size: 1.4rem;
  }

  .btn-generate {
    padding: 16px 20px;
    font-size: 0.95rem;
  }
}