/* ===========================
   Google Font
   =========================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

* {
  box-sizing: border-box;
}

html,
body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ===========================
   Animated background particles
   =========================== */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.15;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: #e879a0;
  border-radius: 50%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

/* ===========================
   Navigation
   =========================== */
nav#navbar {
  width: 100%;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  transition: transform 0.3s ease;
}

.logo:hover img {
  transform: scale(1.1);
}

.logo span {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.01em;
}

/* Desktop nav links */
.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #e879a0;
  border-radius: 2px;
  transition: width 0.25s ease;
}

.nav-links a:hover {
  color: #ffffff;
}

.nav-links a:hover::after {
  width: 100%;
}

/* Hamburger button — hidden on desktop */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 36px;
  height: 36px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Hamburger open state */
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===========================
   Hero Section
   =========================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 5rem 2rem 4rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 50% 40%, rgba(232, 121, 160, 0.12) 0%, transparent 65%);
  z-index: -1;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 5rem);
  font-weight: 800;
  background: linear-gradient(135deg, #ffffff 30%, #e879a0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.25rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  animation: fadeInUp 0.8s ease-out both;
}

.hero h2 {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: #aaaaaa;
  margin-bottom: 2.5rem;
  max-width: 560px;
  line-height: 1.65;
  font-weight: 400;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-image {
  width: 100%;
  max-width: 800px;
  height: auto;
  margin: 1.5rem 0 2rem;
  border-radius: 20px;
  box-shadow: 0 24px 60px rgba(232, 121, 160, 0.15), 0 8px 24px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 0.8s ease-out 0.4s both;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.hero-image:hover {
  transform: scale(1.02);
  box-shadow: 0 32px 70px rgba(232, 121, 160, 0.22), 0 12px 32px rgba(0, 0, 0, 0.5);
}

/* ===========================
   Download Section
   =========================== */
.download-section {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  margin-top: 0.5rem;
  padding: 1.25rem 1.75rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.download-link {
  height: 54px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  border-radius: 10px;
  display: block;
}

.download-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(232, 121, 160, 0.25);
}

/* ===========================
   Warning Banner
   =========================== */
.warning-section {
  padding: 0 2rem 3rem;
}

.warning-container {
  max-width: 1200px;
  margin: 0 auto;
}

.warning-inner {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(255, 183, 77, 0.07);
  border: 1px solid rgba(255, 183, 77, 0.25);
  border-left: 4px solid rgba(255, 183, 77, 0.7);
  border-radius: 0 12px 12px 0;
  padding: 1.25rem 1.5rem;
  color: #ccc;
  font-size: 0.9rem;
  line-height: 1.6;
}

.warning-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.warning-inner strong {
  display: block;
  color: #e8b84b;
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
}

.warning-inner p {
  margin: 0;
  color: #aaa;
}

/* ===========================
   Features Section
   =========================== */
.features {
  padding: 6rem 2rem 5rem;
  background: linear-gradient(180deg, #0d0d0d 0%, #111111 50%, #0d0d0d 100%);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(232, 121, 160, 0.6), transparent);
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.features-heading {
  text-align: center;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: #ffffff;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}

.features-subheading {
  text-align: center;
  color: #888;
  font-size: 1rem;
  margin-bottom: 3rem;
  font-weight: 400;
}

/* Features grid — 3 columns on wide, 2 on medium, 1 on mobile */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* Feature card — vertical image-on-top layout */
.feature-card {
  background: rgba(255, 255, 255, 0.04);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.feature-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(232, 121, 160, 0.07) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  border-radius: inherit;
}

.feature-card:hover::after {
  opacity: 1;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(232, 121, 160, 0.15);
  border-color: rgba(232, 121, 160, 0.25);
}

/* Image area — square crop */
.feature-icon-wrapper {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
}

/* Variant for SVG illustration cards */
.feature-icon-wrapper--text {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(232, 121, 160, 0.06);
}

.feature-svg {
  width: 50%;
  height: 50%;
}

.feature-icon {
  width: 100%;
  height: 100%;
  padding: 5%;
  object-fit: contain;
  display: block;
  transition: transform 0.4s ease;
}

.feature-card:hover .feature-icon {
  transform: scale(1.05);
}

/* Text content area */
.feature-content {
  padding: 1.25rem 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
}

.feature-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  letter-spacing: -0.01em;
}

.feature-content p {
  color: #999999;
  line-height: 1.6;
  font-size: 0.88rem;
  margin: 0;
}

/* ===========================
   Card reveal animation
   =========================== */
.feature-card.loading {
  opacity: 0;
  transform: translateY(20px);
}

.feature-card.loading.visible {
  animation: cardFadeIn 0.5s ease-out forwards;
}

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

/* ===========================
   Smooth scrolling
   =========================== */
html {
  scroll-behavior: smooth;
}

/* ===========================
   Site Footer
   =========================== */
.site-footer {
  background: #070707;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 2.5rem 2rem;
  color: #888;
  font-size: 0.875rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo img {
  border-radius: 6px;
}

.footer-logo span {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.25rem 1.5rem;
}

.footer-links a {
  color: #777;
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #e879a0;
}

.footer-copy {
  margin: 0;
  color: #444;
}

/* ===========================
   Responsive — Tablet (≤ 960px)
   =========================== */
@media (max-width: 960px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===========================
   Responsive — Mobile (≤ 680px)
   =========================== */
@media (max-width: 680px) {
  /* Show hamburger, hide desktop links */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(0, 0, 0, 0.97);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.5rem 0 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li {
    list-style: none;
  }

  .nav-links a {
    display: block;
    padding: 0.8rem 2rem;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
  }

  /* Hero adjustments */
  .hero {
    padding: 4rem 1.25rem 3rem;
  }

  /* Features */
  .features {
    padding: 4rem 1.25rem 3.5rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  /* Download section */
  .download-section {
    flex-direction: column;
    align-items: center;
    padding: 1rem 1.25rem;
  }
}

@media (max-width: 400px) {
  .nav-container {
    padding: 0.75rem 1.25rem;
  }

  .feature-content {
    padding: 1rem 1.1rem 1.25rem;
  }
}