:root {
  --ink: #06040a;
  --surface: #121117;
  --surface-raised: #1d1b23;
  --text-secondary: #c2c4c8;
  --magenta: #ef59b2;
  --violet: #763af5;
  --blue: #072ac8;
  --white: #fff;
  --line-dark: rgba(255, 255, 255, 0.14);
  --line-light: rgba(255, 255, 255, 0.28);
  --font-display: "Coolvetica", "Arial Black", "Helvetica Neue", Arial, sans-serif;
  --font-ui: "Montserrat", Arial, sans-serif;
  --transition-fast: 180ms ease;
  --transition-slow: 650ms cubic-bezier(0.2, 0.75, 0.25, 1);
  --transition-spring: 620ms cubic-bezier(0.34, 1.56, 0.64, 1);
  --glass-bg: rgba(29, 27, 35, 0.55);
  --glass-border: rgba(255, 255, 255, 0.16);
}

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

html {
  height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  min-height: calc(var(--vh, 1vh) * 100);
  overflow-x: hidden;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
}

/* ---------- background blobs ---------- */

.blobs {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  width: min(70vw, 32rem);
  height: min(70vw, 32rem);
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  will-change: transform;
}

.blob--magenta {
  top: -10%;
  left: -15%;
  background: var(--magenta);
  animation: drift-a 22s ease-in-out infinite;
}

.blob--violet {
  bottom: -20%;
  right: -15%;
  background: var(--violet);
  animation: drift-b 26s ease-in-out infinite;
}

.blob--blue {
  top: 40%;
  left: 55%;
  background: var(--blue);
  opacity: 0.45;
  animation: drift-c 30s ease-in-out infinite;
}

@keyframes drift-a {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(8vw, 10vh) scale(1.15); }
}

@keyframes drift-b {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-10vw, -6vh) scale(1.1); }
}

@keyframes drift-c {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-6vw, 8vh) scale(0.9); }
}

/* ---------- shell ---------- */

.app-shell {
  position: relative;
  z-index: 1;
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
  min-height: calc(var(--vh, 1vh) * 100);
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 30rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem clamp(2rem, 8vh, 4rem);
  padding-bottom: max(clamp(2rem, 8vh, 4rem), env(safe-area-inset-bottom, 0px));
}

.app-brand {
  display: grid;
  grid-template-columns: 2rem 1fr 2rem;
  align-items: center;
  padding-block: 0.75rem 1.5rem;
}

.app-brand img {
  grid-column: 2;
  justify-self: center;
  height: 4.5rem;
  width: auto;
  filter: brightness(0) invert(1);
}

.app-footer {
  width: 100%;
  padding-block: 0.75rem 0.25rem;
  text-align: center;
}

.app-footer p {
  margin: 0;
  font-family: var(--font-ui);
  font-size: 0.6rem;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  opacity: 0.6;
  line-height: 1.35;
}

.screen-stack {
  position: relative;
  width: 100%;
  flex: 1;
  display: flex;
}

.screen {
  display: none;
  width: 100%;
  flex-direction: column;
  justify-content: center;
  animation: screen-in var(--transition-spring);
}

.screen.is-active {
  display: flex;
}

@keyframes screen-in {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ---------- glass card ---------- */

.glass-card {
  position: relative;
  width: 100%;
  border: 1px solid var(--glass-border);
  border-radius: 0;
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  backdrop-filter: blur(22px) saturate(150%);
  padding: clamp(1.5rem, 6vw, 2.25rem);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset;
}

.kicker {
  margin: 0 0 0.75rem;
  color: var(--magenta);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- landing ---------- */

.hero-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 10vw, 3.2rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.hero-title em {
  font-style: normal;
  color: var(--magenta);
}

.hero-hook {
  margin: 0 0 1.75rem;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.5;
}

.legend-counter {
  margin: 1.25rem 0 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.78rem;
}

.legend-counter strong {
  color: var(--white);
}

/* ---------- buttons ---------- */

.btn {
  position: relative;
  display: inline-flex;
  min-height: 3.5rem;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border: 2px solid var(--white);
  border-radius: 0;
  background: transparent;
  padding: 0.9rem 1.5rem;
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast), border-color var(--transition-fast);
}

.btn--block {
  width: 100%;
}

.btn--primary {
  border-color: var(--magenta);
  background: var(--magenta);
  color: var(--ink);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--violet);
  border-color: var(--violet);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--ghost {
  border-color: var(--line-light);
  background: transparent;
  color: var(--white);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn--whatsapp {
  border-color: #25d366;
  background: #25d366;
  color: var(--ink);
  opacity: 0.55;
  cursor: not-allowed;
  margin-bottom: 0.85rem;
}

.btn--whatsapp:hover {
  transform: none;
}

.btn:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 3px;
}

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

/* ---------- progress ---------- */

.quiz-back-btn {
  grid-column: 1;
  justify-self: start;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.quiz-back-btn:hover,
.quiz-back-btn:focus-visible {
  color: var(--white);
}

.quiz-back-btn:active {
  transform: scale(0.88);
}

.quiz-back-btn[hidden] {
  display: none;
}

.progress-wrap {
  margin-bottom: 1.25rem;
}

.progress-track {
  position: relative;
  height: 0.55rem;
  overflow: hidden;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.08);
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--magenta), var(--violet), var(--blue), var(--magenta));
  background-size: 300% 100%;
  animation: liquid-flow 3.5s linear infinite;
  transition: width var(--transition-spring);
}

@keyframes liquid-flow {
  0% { background-position: 0% 0%; }
  100% { background-position: 300% 0%; }
}

.progress-label {
  display: block;
  margin-top: 0.6rem;
  color: var(--text-secondary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- question / options ---------- */

.glass-card--question {
  min-height: 22rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.question-text {
  margin: 0 0 1.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 6vw, 1.75rem);
  line-height: 1.15;
}

.options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.option-btn {
  display: flex;
  align-items: center;
  width: 100%;
  border: 2px solid var(--line-light);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.04);
  padding: 1rem 1.1rem;
  color: var(--white);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast),
    transform var(--transition-fast), box-shadow var(--transition-fast);
}

.option-btn:hover,
.option-btn:focus-visible {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.09);
}

.option-btn:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 2px;
}

.option-btn.is-selected {
  border-color: var(--magenta);
  background: rgba(239, 89, 178, 0.18);
  box-shadow: 0 0 0 3px rgba(239, 89, 178, 0.35), 0 0 28px rgba(239, 89, 178, 0.45);
  transform: scale(1.02);
}

.option-btn:active {
  transform: scale(0.98);
}

/* question transition */

.glass-card--question.is-leaving .question-text,
.glass-card--question.is-leaving .options {
  animation: question-out var(--transition-fast) forwards;
}

.glass-card--question.is-entering .question-text,
.glass-card--question.is-entering .options {
  animation: question-in var(--transition-spring);
}

@keyframes question-out {
  to {
    opacity: 0;
    transform: translateX(-14px);
  }
}

@keyframes question-in {
  from {
    opacity: 0;
    transform: translateX(18px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ---------- result ---------- */

.glass-card--result {
  overflow: hidden;
  text-align: center;
}

.result-emoji {
  font-size: 4.5rem;
  line-height: 1;
  margin-bottom: 0.5rem;
  animation: result-pop 720ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes result-pop {
  0% { opacity: 0; transform: scale(0.3) rotate(-12deg); }
  60% { opacity: 1; transform: scale(1.15) rotate(4deg); }
  100% { transform: scale(1) rotate(0deg); }
}

.result-level {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 8vw, 2.5rem);
  animation: screen-in var(--transition-spring);
}

.result-copy {
  margin: 0 0 0.75rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.55;
}

.result-almost {
  margin: 0 0 1.5rem;
  color: var(--magenta);
  font-weight: 700;
  font-size: 0.85rem;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.result-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.particle {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 8px;
  height: 8px;
  background: var(--magenta);
  opacity: 0;
  animation: particle-burst 900ms ease-out forwards;
}

@keyframes particle-burst {
  0% {
    opacity: 1;
    transform: translate(-50%, -50%) translate(0, 0) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) translate(var(--tx), var(--ty)) scale(0.3);
  }
}

/* ---------- compare ---------- */

.compare-title {
  margin: 0 0 1.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 6vw, 1.8rem);
  text-align: center;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}

.compare-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.compare-label {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.compare-emoji {
  font-size: 2.75rem;
  line-height: 1;
}

.compare-level {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
}

.compare-vs {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--magenta);
}

.compare-verdict {
  margin: 1.5rem 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ---------- whatsapp cta ---------- */

.cta-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 6vw, 1.9rem);
  text-align: center;
}

.cta-copy {
  margin: 0 0 1.5rem;
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .blob,
  .progress-fill,
  .screen,
  .result-emoji,
  .result-level,
  .particle,
  .glass-card--question.is-leaving .question-text,
  .glass-card--question.is-leaving .options,
  .glass-card--question.is-entering .question-text,
  .glass-card--question.is-entering .options {
    animation: none !important;
  }
}

@media (max-width: 22rem) {
  .app-shell {
    padding-inline: 1rem;
  }
}