/* ===== CSS Variables ===== */
:root {
  --baby-pink: #ffcce0;
  --pastel-pink: #ffb6c1;
  --rose-pink: #f8a5c2;
  --soft-pink: #ffe4ec;
  --white: #ffffff;
  --lavender: #e6d5f5;
  --soft-purple: #d4b8e8;
  --magenta: #e879a8;
  --text-dark: #5a3d5c;
  --text-muted: #8a6a8c;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-border: rgba(255, 182, 193, 0.45);
  --shadow-soft: 0 8px 32px rgba(248, 165, 194, 0.25);
  --shadow-hover: 0 12px 40px rgba(232, 121, 168, 0.35);
  --radius: 20px;
  --radius-sm: 12px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Dark mode */
[data-theme="dark"] {
  --baby-pink: #3d2a3e;
  --pastel-pink: #4a3550;
  --rose-pink: #c96b8e;
  --soft-pink: #2a1f30;
  --white: #1a1220;
  --lavender: #2e2238;
  --soft-purple: #3a2a48;
  --magenta: #e879a8;
  --text-dark: #f5e6f0;
  --text-muted: #c9a8c4;
  --glass-bg: rgba(40, 28, 50, 0.65);
  --glass-border: rgba(232, 121, 168, 0.3);
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-hover: 0 12px 40px rgba(232, 121, 168, 0.25);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  color: var(--text-dark);
  background: linear-gradient(160deg, var(--soft-pink) 0%, var(--white) 40%, var(--lavender) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  transition: background 0.5s ease, color 0.4s ease;
}

[data-theme="dark"] body {
  background: linear-gradient(160deg, #1a1220 0%, #2a1f30 45%, #2e2238 100%);
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

/* ===== Parallax Clouds ===== */
#parallax-clouds {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.cloud {
  position: absolute;
  will-change: transform;
  transition: opacity 0.4s ease;
}

.cloud-inner {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
  filter: blur(2px);
  animation: cloud-drift var(--drift, 18s) ease-in-out infinite;
}

[data-theme="dark"] .cloud-inner {
  background: rgba(200, 170, 220, 0.14);
}

.cloud-inner::before,
.cloud-inner::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: inherit;
}

.cloud-inner::before {
  width: 60%;
  height: 70%;
  top: -35%;
  left: 10%;
}

.cloud-inner::after {
  width: 55%;
  height: 65%;
  top: -25%;
  right: 5%;
}

.cloud-layer-1 { opacity: 0.35; }
.cloud-layer-2 { opacity: 0.5; }
.cloud-layer-3 { opacity: 0.65; }

[data-theme="dark"] .cloud-layer-1 { opacity: 0.22; }
[data-theme="dark"] .cloud-layer-2 { opacity: 0.32; }
[data-theme="dark"] .cloud-layer-3 { opacity: 0.42; }

@keyframes cloud-drift {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(14px); }
}

/* ===== Background Butterflies ===== */
#butterflies {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.butterfly {
  position: absolute;
  font-size: var(--size, 1.4rem);
  opacity: 0.55;
  animation: fly-up var(--duration, 18s) linear infinite;
  animation-delay: var(--delay, 0s);
  left: var(--x, 50%);
  bottom: -40px;
  will-change: transform, opacity;
}

.butterfly .wings {
  display: inline-block;
  animation: flap var(--flap, 0.6s) ease-in-out infinite alternate;
  transform-origin: center;
}

@keyframes fly-up {
  0% {
    transform: translateY(0) translateX(0) rotate(0deg);
    opacity: 0;
  }
  8% { opacity: 0.55; }
  25% { transform: translateY(-25vh) translateX(var(--sway, 20px)) rotate(5deg); }
  50% { transform: translateY(-50vh) translateX(calc(var(--sway, 20px) * -1)) rotate(-4deg); }
  75% { transform: translateY(-75vh) translateX(var(--sway, 20px)) rotate(3deg); }
  92% { opacity: 0.45; }
  100% {
    transform: translateY(-110vh) translateX(0) rotate(0deg);
    opacity: 0;
  }
}

@keyframes flap {
  from { transform: scaleX(1); }
  to { transform: scaleX(0.75); }
}

/* ===== Sparkles ===== */
#sparkles {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.sparkle {
  position: absolute;
  font-size: var(--size, 0.7rem);
  color: var(--magenta);
  opacity: 0;
  animation: twinkle var(--duration, 3s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  left: var(--x, 50%);
  top: var(--y, 50%);
  will-change: opacity, transform;
}

@keyframes twinkle {
  0%, 100% { opacity: 0; transform: scale(0.4); }
  50% { opacity: 0.85; transform: scale(1.1); }
}

/* ===== Floating Hearts ===== */
#floating-hearts {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  overflow: hidden;
}

.heart-float {
  position: absolute;
  font-size: var(--size, 1.2rem);
  bottom: -30px;
  left: var(--x, 50%);
  animation: heart-rise var(--duration, 6s) ease-out forwards;
  will-change: transform, opacity;
  pointer-events: none;
}

@keyframes heart-rise {
  0% {
    transform: translateY(0) scale(0.5) rotate(0deg);
    opacity: 0.9;
  }
  20% { opacity: 1; transform: translateY(-20vh) scale(1) rotate(10deg); }
  60% { transform: translateY(-60vh) scale(1.15) rotate(-8deg); }
  100% {
    transform: translateY(-110vh) scale(0.8) rotate(15deg);
    opacity: 0;
  }
}

/* ===== Cursor sparkle ===== */
#cursor-sparkle {
  position: fixed;
  pointer-events: none;
  z-index: 9999;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff 0%, var(--magenta) 70%, transparent 100%);
  opacity: 0;
  transform: translate(-50%, -50%);
  transition: opacity 0.15s;
  mix-blend-mode: screen;
}

body:not(.touch-device) #cursor-sparkle.active {
  opacity: 0.7;
}

.click-heart {
  position: fixed;
  pointer-events: none;
  z-index: 9998;
  font-size: 1.1rem;
  animation: click-pop 0.8s ease-out forwards;
  transform: translate(-50%, -50%);
}

@keyframes click-pop {
  0% { transform: translate(-50%, -50%) scale(0.3); opacity: 1; }
  100% { transform: translate(-50%, -120%) scale(1.2); opacity: 0; }
}

/* ===== Navbar ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-soft);
  transition: background 0.4s, border-color 0.4s;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1100px, 92%);
  margin-inline: auto;
  padding: 0.85rem 0;
  gap: 1rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  transition: transform var(--transition), color var(--transition);
}

.logo:hover {
  transform: scale(1.04);
  color: var(--magenta);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link {
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(255, 182, 193, 0.35);
  color: var(--magenta);
  transform: translateY(-1px);
}

[data-theme="dark"] .nav-link:hover {
  background: rgba(232, 121, 168, 0.2);
}

.theme-toggle {
  font-size: 1.25rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: transform var(--transition), background var(--transition);
  background: rgba(255, 182, 193, 0.25);
}

.theme-toggle:hover {
  transform: rotate(20deg) scale(1.1);
  background: rgba(255, 182, 193, 0.45);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  justify-content: center;
  align-items: center;
  border-radius: 8px;
  transition: background var(--transition);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2.5px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem 5rem;
  z-index: 1;
}

.hero-content {
  max-width: 680px;
}

.hero-title {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-dark);
  margin-bottom: 1rem;
  opacity: 0;
  animation: fade-in-up 0.9s ease 0.2s forwards;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--text-muted);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fade-in-up 0.9s ease 0.5s forwards;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  opacity: 0;
  animation: fade-in-up 0.9s ease 0.8s forwards;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--rose-pink), var(--magenta));
  color: #fff;
  box-shadow: 0 6px 20px rgba(232, 121, 168, 0.4);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 28px rgba(232, 121, 168, 0.5);
}

.btn-secondary {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  border: 1.5px solid var(--glass-border);
  color: var(--text-dark);
  box-shadow: var(--shadow-soft);
}

.btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  background: rgba(255, 182, 193, 0.35);
}

.btn-game {
  margin-top: 0.75rem;
  background: linear-gradient(135deg, var(--pastel-pink), var(--rose-pink));
  color: #fff;
  font-size: 0.88rem;
  padding: 0.55rem 1.2rem;
  box-shadow: 0 4px 14px rgba(248, 165, 194, 0.4);
}

.btn-game:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 8px 22px rgba(232, 121, 168, 0.45);
}

.btn-mail {
  background: linear-gradient(135deg, #f8a5c2, #e879a8);
  color: #fff;
  box-shadow: 0 6px 20px rgba(232, 121, 168, 0.4);
  position: relative;
  overflow: hidden;
}

.btn-mail:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(232, 121, 168, 0.5);
}

.btn-mail:hover::after {
  content: '💗';
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  animation: heart-bounce 0.6s ease;
}

@keyframes heart-bounce {
  0%, 100% { transform: translateY(-50%) scale(1); }
  50% { transform: translateY(-50%) scale(1.3); }
}

/* ===== Sections ===== */
.section {
  position: relative;
  padding: 5rem 0;
  z-index: 1;
}

.section-title {
  text-align: center;
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  font-weight: 700;
  margin-bottom: 2.5rem;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}

/* ===== About ===== */
.about-content {
  display: grid;
  gap: 2.5rem;
}

.about-text {
  max-width: 680px;
  margin-inline: auto;
  text-align: center;
}

.about-text p {
  margin-bottom: 1.1rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.about-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.info-card {
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition);
}

.info-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 0.6rem;
}

.info-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--magenta);
  margin-bottom: 0.3rem;
}

.info-card p {
  font-size: 0.95rem;
  color: var(--text-dark);
}

/* ===== Games ===== */
.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.game-card {
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 1.75rem 1.4rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.game-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.game-icon {
  font-size: 2.4rem;
  margin-bottom: 0.75rem;
}

.game-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.game-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  flex-grow: 1;
  margin-bottom: 0.5rem;
}

/* ===== Mail ===== */
.mail-card {
  max-width: 520px;
  margin-inline: auto;
}

.mail-envelope {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition), box-shadow var(--transition);
}

.mail-envelope:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.envelope-icon {
  font-size: 2.8rem;
  display: block;
  margin-bottom: 1rem;
}

.mail-text {
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  font-size: 1.05rem;
}

.mail-address {
  margin-bottom: 1.5rem;
  font-size: 1rem;
  color: var(--text-dark);
}

.mail-address strong {
  color: var(--magenta);
}

/* ===== Love Section ===== */
.love-section {
  padding: 3.5rem 0 5rem;
}

.love-container {
  text-align: center;
}

.love-btn {
  background: linear-gradient(135deg, #ff9ec4, #e879a8, #d46ba8);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  padding: 1rem 2.2rem;
  border-radius: 999px;
  box-shadow: 0 8px 28px rgba(232, 121, 168, 0.45);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.love-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 12px 36px rgba(232, 121, 168, 0.55);
}

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

.love-btn.pop {
  animation: love-pop 0.45s ease;
}

@keyframes love-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.love-counter {
  margin-top: 1.25rem;
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.love-counter span {
  color: var(--magenta);
  font-weight: 700;
}

.love-message {
  margin-top: 0.75rem;
  font-size: 1.1rem;
  color: var(--magenta);
  font-weight: 600;
  animation: fade-in-up 0.5s ease;
}

/* ===== Footer ===== */
.footer {
  background: linear-gradient(135deg, var(--rose-pink), var(--soft-purple));
  color: #fff;
  text-align: center;
  padding: 2.5rem 1.5rem;
  position: relative;
  z-index: 1;
}

[data-theme="dark"] .footer {
  background: linear-gradient(135deg, #4a2a40, #3a2a48);
}

.footer-made {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.footer-copy {
  font-size: 0.9rem;
  opacity: 0.9;
  margin-bottom: 0.75rem;
}

.footer-deco {
  font-size: 1.3rem;
  letter-spacing: 0.4rem;
  opacity: 0.9;
}

/* ===== Back to top ===== */
.back-to-top {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--rose-pink), var(--magenta));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 700;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 20px rgba(232, 121, 168, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px) scale(1.08);
}

/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  transition-delay: var(--delay, 0s);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    flex-direction: column;
    padding: 1.25rem;
    gap: 0.4rem;
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-soft);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.35s ease, opacity 0.35s ease, visibility 0.35s;
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    width: 100%;
    text-align: center;
    padding: 0.7rem;
  }

  .theme-toggle {
    order: -1;
    margin-right: auto;
  }

  .logo {
    order: 0;
  }

  .hamburger {
    order: 1;
  }

  .nav-container {
    flex-wrap: nowrap;
  }

  .hero {
    min-height: 78vh;
    padding: 3rem 1.2rem 4rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .about-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .games-grid {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin-inline: auto;
  }

  .back-to-top {
    bottom: 1.25rem;
    right: 1.25rem;
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 420px) {
  .about-cards {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 260px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}