/* ============================================
   WHO AM I? – Digital Edition
   Premium glassmorphism UI
   ============================================ */

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

:root {
  --bg-dark: #0a0a1a;
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --accent-1: #a855f7;
  /* violet  */
  --accent-2: #6366f1;
  /* indigo  */
  --accent-3: #ec4899;
  /* pink    */
  --text-primary: #f1f5f9;
  --text-secondary: rgba(241, 245, 249, 0.6);
  --font: 'Outfit', system-ui, sans-serif;
  --ring-circumference: 339.292;
  /* 2 * π * 54 */
}

html {
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

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

/* ---- Screens ---- */
.screen {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
  opacity: 0;
  visibility: hidden;
  transition: opacity .5s ease, visibility .5s ease;
}

.screen.active {
  opacity: 1;
  visibility: visible;
}

/* ---- Glass card ---- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 2rem;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: 3rem 3.5rem;
  text-align: center;
  max-width: 420px;
  width: 90%;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, .35),
    inset 0 1px 0 rgba(255, 255, 255, .08);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -30%;
  width: 160%;
  height: 160%;
  background: radial-gradient(circle, rgba(168, 85, 247, .12) 0%, transparent 60%);
  pointer-events: none;
}

/* ---- Start screen ---- */
.logo-area {
  margin-bottom: 2.5rem;
}

.logo-icon {
  font-size: 3.5rem;
  display: block;
  margin-bottom: .6rem;
  filter: drop-shadow(0 0 18px rgba(168, 85, 247, .5));
  animation: float 3s ease-in-out infinite;
}

h1 {
  font-size: 2.6rem;
  font-weight: 900;
  letter-spacing: -.5px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.15;
}

.tagline {
  color: var(--text-secondary);
  font-size: .95rem;
  margin-top: .5rem;
  font-weight: 300;
  letter-spacing: .5px;
}

/* ---- Buttons ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .8rem;
  padding: 1rem 2.6rem;
  font-size: 1.15rem;
  font-weight: 600;
  font-family: var(--font);
  color: #fff;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-1));
  box-shadow: 0 4px 20px rgba(99, 102, 241, .35);
  transition: transform .2s, box-shadow .2s;
  position: relative;
  overflow: hidden;
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, .15) 100%);
  pointer-events: none;
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 30px rgba(99, 102, 241, .45);
}

.btn-primary:active {
  transform: scale(.97);
}

.btn-arrow {
  display: inline-block;
  transition: transform .2s;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

/* pulse ring animation on play button */
.pulse {
  position: relative;
}

.pulse::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 100px;
  border: 2px solid var(--accent-1);
  animation: pulse-ring 2s cubic-bezier(.4, 0, .6, 1) infinite;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2.2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font);
  color: var(--text-primary);
  background: rgba(255, 255, 255, .08);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  cursor: pointer;
  transition: background .2s, transform .2s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, .14);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: scale(.97);
}

/* ---- Countdown ---- */
.countdown-card {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.countdown-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 1.4rem;
}

.countdown-number {
  font-size: 6rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.countdown-ring {
  width: 160px;
  height: 160px;
  position: relative;
}

.countdown-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, .06);
  stroke-width: 6;
}

.ring-fg {
  fill: none;
  stroke: url(#grad);
  stroke: var(--accent-1);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: var(--ring-circumference);
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear;
}

/* ---- Character screen ---- */
.character-card {
  animation: slideUp .6s cubic-bezier(.16, 1, .3, 1) both;
}

.character-subtitle {
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: .6rem;
}

.character-name {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.15;
  background: linear-gradient(135deg, var(--accent-3), var(--accent-1), var(--accent-2));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 4s ease infinite;
  margin-bottom: 1.2rem;
  word-break: break-word;
}

.character-decoration {
  margin-bottom: 2rem;
}

.sparkle {
  display: inline-block;
  font-size: 1rem;
  color: var(--accent-1);
  margin: 0 .35rem;
  animation: sparkle 1.8s ease-in-out infinite;
}

.sparkle.s2 {
  animation-delay: .3s;
  color: var(--accent-3);
}

.sparkle.s3 {
  animation-delay: .6s;
  color: var(--accent-2);
}

/* ---- Animations ---- */
@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes pulse-ring {
  0% {
    opacity: 1;
    transform: scale(1);
  }

  80%,
  100% {
    opacity: 0;
    transform: scale(1.15);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

@keyframes sparkle {

  0%,
  100% {
    opacity: .3;
    transform: scale(.8);
  }

  50% {
    opacity: 1;
    transform: scale(1.3);
  }
}

/* ---- Generate section ---- */
.start-card {
  max-width: 460px;
}

.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.6rem 0;
  color: var(--text-secondary);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--glass-border);
}

.generate-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .8rem;
}

.theme-input {
  width: 100%;
  padding: .75rem 1.1rem;
  font-family: var(--font);
  font-size: .9rem;
  color: var(--text-primary);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.theme-input::placeholder {
  color: var(--text-secondary);
}

.theme-input:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(168, 85, 247, .15);
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.8rem;
  font-size: .95rem;
  font-weight: 600;
  font-family: var(--font);
  color: #fff;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent-3), var(--accent-1));
  box-shadow: 0 4px 16px rgba(236, 72, 153, .3);
  transition: transform .2s, box-shadow .2s, opacity .2s;
}

.btn-accent:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 24px rgba(236, 72, 153, .4);
}

.btn-accent:active {
  transform: scale(.97);
}

.btn-accent:disabled {
  opacity: .6;
  cursor: not-allowed;
  transform: none;
}

.btn-icon {
  font-size: 1.1rem;
}

.btn-accent.loading .btn-icon {
  animation: spin 1s linear infinite;
}

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

.generate-status {
  font-size: .8rem;
  color: var(--text-secondary);
  min-height: 1.2em;
  transition: color .2s;
}

.generate-status.success {
  color: #34d399;
}

.generate-status.error {
  color: #f87171;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  body {
    overflow-y: auto;
    overflow-x: hidden;
  }

  .screen {
    position: relative;
    min-height: 100dvh;
    padding: 1.5rem 0;
  }

  .screen:not(.active) {
    position: absolute;
  }

  .glass-card {
    padding: 2rem 1.5rem;
    border-radius: 1.4rem;
    max-width: 92vw;
  }

  .start-card {
    max-width: 92vw;
  }

  .logo-icon {
    font-size: 2.8rem;
  }

  h1 {
    font-size: 2rem;
  }

  .tagline {
    font-size: .85rem;
  }

  .btn-primary {
    padding: .85rem 2rem;
    font-size: 1.05rem;
  }

  .divider {
    margin: 1.2rem 0;
  }

  .theme-input {
    font-size: .85rem;
    padding: .65rem .9rem;
  }

  .btn-accent {
    padding: .65rem 1.4rem;
    font-size: .85rem;
  }

  .character-name {
    font-size: 2rem;
  }

  .countdown-number {
    font-size: 4.5rem;
  }

  .countdown-ring {
    width: 120px;
    height: 120px;
  }
}

@media (max-width: 360px) {
  .glass-card {
    padding: 1.5rem 1.1rem;
  }

  h1 {
    font-size: 1.7rem;
  }

  .character-name {
    font-size: 1.6rem;
  }

  .countdown-number {
    font-size: 3.5rem;
  }

  .countdown-ring {
    width: 100px;
    height: 100px;
  }

  .btn-primary {
    padding: .75rem 1.6rem;
    font-size: .95rem;
  }
}