/* ═══════════════════════════════════════════════
   DESIGN TOKENS
   ═══════════════════════════════════════════════ */
:root {
  /* ── Color Palette ── */
  --clr-bg-start: #1a0a14;
  --clr-bg-end: #2d0a1e;
  --clr-pink-100: #ffe0ec;
  --clr-pink-200: #ffb3d0;
  --clr-pink-300: #ff6b9d;
  --clr-pink-400: #e91e63;
  --clr-pink-500: #c62861;
  --clr-pink-600: #880e4f;
  --clr-red-400: #ef5350;
  --clr-red-500: #d32f2f;
  --clr-white: #ffffff;
  --clr-white-08: rgba(255, 255, 255, 0.08);
  --clr-white-12: rgba(255, 255, 255, 0.12);
  --clr-white-20: rgba(255, 255, 255, 0.20);
  --clr-white-60: rgba(255, 255, 255, 0.60);
  --clr-white-80: rgba(255, 255, 255, 0.80);
  --clr-glass-bg: rgba(255, 255, 255, 0.07);
  --clr-glass-border: rgba(255, 255, 255, 0.15);
  --clr-input-bg: rgba(255, 255, 255, 0.06);
  --clr-input-border: rgba(255, 255, 255, 0.18);
  --clr-input-focus: rgba(233, 30, 99, 0.5);
  --clr-glow: rgba(233, 30, 99, 0.6);

  /* ── Typography ── */
  --ff-primary: 'Outfit', sans-serif;
  --ff-handwritten: 'Dancing Script', cursive;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.5rem;
  --fs-xl: 2rem;
  --fs-2xl: 2.75rem;
  --fs-3xl: 3.5rem;
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-extrabold: 800;

  /* ── Spacing ── */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* ── Borders & Radius ── */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* ── Shadows ── */
  --shadow-card: 0 8px 40px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  --shadow-glow: 0 0 60px rgba(233, 30, 99, 0.25);
  --shadow-btn: 0 4px 20px rgba(233, 30, 99, 0.4);
  --shadow-btn-hover: 0 6px 30px rgba(233, 30, 99, 0.6);
  --shadow-input-focus: 0 0 0 3px var(--clr-input-focus);

  /* ── Transition ── */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 200ms;
  --dur-normal: 350ms;
  --dur-slow: 600ms;

  /* ── Ring dimensions ── */
  --ring-circumference: 439.82;
}

/* ═══════════════════════════════════════════════
   RESET & BASE
   ═══════════════════════════════════════════════ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--ff-primary);
  color: var(--clr-white);
  background: linear-gradient(135deg, var(--clr-bg-start) 0%, var(--clr-bg-end) 50%, #3d0a2a 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  position: relative;
}

/* ═══════════════════════════════════════════════
   FLOATING HEARTS BACKGROUND
   ═══════════════════════════════════════════════ */
.hearts-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.floating-heart {
  position: absolute;
  bottom: -60px;
  will-change: transform, opacity;
  animation: floatUp linear infinite;
  opacity: 0;
  font-size: 1.2rem;
  filter: blur(0.5px);
}

@keyframes floatUp {
  0% {
    transform: translateY(0) rotate(0deg) scale(1);
    opacity: 0;
  }
  10% {
    opacity: 0.6;
  }
  50% {
    opacity: 0.4;
  }
  90% {
    opacity: 0.15;
  }
  100% {
    transform: translateY(-110vh) rotate(360deg) scale(0.5);
    opacity: 0;
  }
}

/* ═══════════════════════════════════════════════
   CARD WRAPPER & GLASS CARD
   ═══════════════════════════════════════════════ */
.card-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  width: 100%;
  flex: 1;
}

.card {
  width: 100%;
  max-width: 460px;
  background: var(--clr-glass-bg);
  border: 1px solid var(--clr-glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  padding: var(--space-2xl) var(--space-xl);
  position: relative;
  overflow: hidden;
}

/* Decorative shimmer line */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-pink-300), transparent);
  opacity: 0.6;
}

/* Subtle radial glow */
.card::after {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(233, 30, 99, 0.12), transparent 70%);
  pointer-events: none;
}

/* ═══════════════════════════════════════════════
   STATE MANAGEMENT
   ═══════════════════════════════════════════════ */
.state {
  display: none;
  opacity: 0;
  transform: translateY(16px) scale(0.97);
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-slow) var(--ease-out-expo);
}

.state.active {
  display: block;
  opacity: 1;
  transform: translateY(0) scale(1);
}

.state.fade-in {
  animation: fadeStateIn var(--dur-slow) var(--ease-out-expo) forwards;
}

@keyframes fadeStateIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ═══════════════════════════════════════════════
   INPUT STATE: HEADER
   ═══════════════════════════════════════════════ */
.card__header {
  text-align: center;
  margin-bottom: var(--space-xl);
  position: relative;
  z-index: 1;
}

.card__icon {
  display: block;
  font-size: 3rem;
  margin-bottom: var(--space-sm);
  animation: gentlePulse 2.5s ease-in-out infinite;
}

@keyframes gentlePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

.card__title {
  font-family: var(--ff-primary);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-extrabold);
  background: linear-gradient(135deg, var(--clr-pink-200), var(--clr-pink-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: var(--space-sm);
}

.card__subtitle {
  font-size: var(--fs-sm);
  color: var(--clr-white-60);
  font-weight: var(--fw-light);
  letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════════════
   FORM
   ═══════════════════════════════════════════════ */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: relative;
  z-index: 1;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  color: var(--clr-pink-200);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-left: var(--space-xs);
}

.form__input {
  font-family: var(--ff-primary);
  font-size: var(--fs-md);
  font-weight: var(--fw-regular);
  color: var(--clr-white);
  background: var(--clr-input-bg);
  border: 1.5px solid var(--clr-input-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
  outline: none;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast), background var(--dur-fast);
}

.form__input::placeholder {
  color: var(--clr-white-20);
  font-weight: var(--fw-light);
}

.form__input:focus {
  border-color: var(--clr-pink-400);
  box-shadow: var(--shadow-input-focus);
  background: rgba(255, 255, 255, 0.09);
}

.form__heart-divider {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-xs) 0;
  color: var(--clr-pink-400);
  animation: gentlePulse 2.5s ease-in-out infinite;
}

.heart-svg {
  filter: drop-shadow(0 0 8px rgba(233, 30, 99, 0.5));
}

/* ═══════════════════════════════════════════════
   BUTTONS
   ═══════════════════════════════════════════════ */
.btn {
  font-family: var(--ff-primary);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.9rem 2rem;
  transition: all var(--dur-normal) var(--ease-spring);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--clr-pink-400), var(--clr-red-400));
  color: var(--clr-white);
  box-shadow: var(--shadow-btn);
  margin-top: var(--space-sm);
}

.btn--primary:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: var(--shadow-btn-hover);
}

.btn--primary:active {
  transform: translateY(0) scale(0.98);
}

/* Shimmer sweep on primary btn */
.btn--primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  animation: shimmerSweep 3s ease-in-out infinite;
}

@keyframes shimmerSweep {
  0%   { left: -100%; }
  50%  { left: 100%; }
  100% { left: 100%; }
}

.btn--secondary {
  background: var(--clr-white-08);
  color: var(--clr-pink-200);
  border: 1.5px solid var(--clr-white-12);
  backdrop-filter: blur(8px);
}

.btn--secondary:hover {
  background: var(--clr-white-12);
  color: var(--clr-white);
  transform: translateY(-2px);
  border-color: var(--clr-pink-400);
}

.btn--secondary:active {
  transform: translateY(0) scale(0.98);
}

.btn__icon {
  font-size: 1.15em;
}

/* ═══════════════════════════════════════════════
   LOADING STATE
   ═══════════════════════════════════════════════ */
.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-2xl) 0;
  position: relative;
  z-index: 1;
}

.loader__heart {
  animation: heartbeat 1s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(233, 30, 99, 0.6));
}

@keyframes heartbeat {
  0%   { transform: scale(1); }
  14%  { transform: scale(1.2); }
  28%  { transform: scale(1); }
  42%  { transform: scale(1.15); }
  56%  { transform: scale(1); }
  100% { transform: scale(1); }
}

.loader__text {
  font-size: var(--fs-md);
  color: var(--clr-pink-200);
  font-weight: var(--fw-medium);
  letter-spacing: 0.03em;
}

.loader__dots::after {
  content: '';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0%   { content: ''; }
  25%  { content: '.'; }
  50%  { content: '..'; }
  75%  { content: '...'; }
  100% { content: ''; }
}

/* ═══════════════════════════════════════════════
   RESULT STATE
   ═══════════════════════════════════════════════ */
.result {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-md) 0;
  text-align: center;
  position: relative;
  z-index: 1;
}

.result__names {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--clr-pink-200);
  letter-spacing: 0.01em;
}

/* ── Percentage Ring ── */
.result__percentage-ring {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 160px;
  height: 160px;
}

.ring-svg {
  transform: rotate(-90deg);
  position: absolute;
  inset: 0;
}

.ring-bg {
  fill: none;
  stroke: var(--clr-white-08);
  stroke-width: 8;
}

.ring-fill {
  fill: none;
  stroke: url(#ringGradient);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: var(--ring-circumference);
  stroke-dashoffset: var(--ring-circumference);
  transition: stroke-dashoffset 1.8s var(--ease-out-expo);
  filter: drop-shadow(0 0 10px rgba(233, 30, 99, 0.5));
}

.result__percentage {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-extrabold);
  background: linear-gradient(135deg, var(--clr-pink-200), var(--clr-pink-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  position: relative;
  z-index: 1;
  animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(233, 30, 99, 0.4)); }
  50%      { filter: drop-shadow(0 0 20px rgba(233, 30, 99, 0.7)); }
}

.result__reading {
  font-family: var(--ff-handwritten);
  font-size: var(--fs-xl);
  line-height: 1.5;
  color: var(--clr-white-80);
  max-width: 380px;
  padding: 0 var(--space-sm);
  font-weight: var(--fw-regular);
}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.footer {
  position: relative;
  z-index: 1;
  padding: var(--space-md);
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--clr-white-20);
  font-weight: var(--fw-light);
  letter-spacing: 0.04em;
}

/* ═══════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════ */
@media (max-width: 520px) {
  .card {
    padding: var(--space-xl) var(--space-md);
    border-radius: var(--radius-md);
  }

  .card__title {
    font-size: var(--fs-xl);
  }

  .card__icon {
    font-size: 2.4rem;
  }

  .result__percentage {
    font-size: var(--fs-2xl);
  }

  .result__reading {
    font-size: var(--fs-lg);
  }

  .card-wrapper {
    padding: var(--space-md);
  }

  .btn {
    padding: 0.8rem 1.5rem;
    font-size: var(--fs-sm);
  }
}

@media (max-width: 360px) {
  .card {
    padding: var(--space-lg) var(--space-sm);
  }

  .card__title {
    font-size: var(--fs-lg);
  }

  .result__reading {
    font-size: var(--fs-md);
  }
}

/* ═══════════════════════════════════════════════
   ACCESSIBILITY: REDUCED MOTION
   ═══════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .floating-heart {
    display: none;
  }
}