/* ============================================================
   SONESTA BABY – Main Stylesheet
   Domain: sonesta-baby.com
   ============================================================ */

/* Fonts loaded via HTML <link> preconnect for performance */

/* ── CSS Variables ── */
:root {
  --blue-deep:    #0d2b5e;
  --blue-mid:     #1a4fa0;
  --blue-light:   #2f78e4;
  --blue-pale:    #dbeafe;
  --blue-product: #2563c9;
  --gold:         #b5813a;
  --gold-light:   #d4a855;
  --gold-pale:    #fdf4e7;
  --white:        #ffffff;
  --off-white:    #f8fafd;
  --grey-light:   #e8edf5;
  --grey-text:    #6b7a99;
  --dark:         #0a1628;
  --shadow-sm:    0 2px 8px rgba(13,43,94,.10);
  --shadow-md:    0 8px 30px rgba(13,43,94,.15);
  --shadow-lg:    0 20px 60px rgba(13,43,94,.22);
  --radius-sm:    8px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-xl:    40px;
  --transition:   0.3s cubic-bezier(0.4,0,0.2,1);
}

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

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

body {
  font-family: 'Outfit', 'Inter', sans-serif;
  background-color: var(--white);
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ── Language Switcher ── */
.lang-bar {
  background: var(--blue-deep);
  padding: 6px 0;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.lang-bar .container { display: flex; justify-content: flex-end; gap: 6px; align-items: center; }
.lang-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,.3);
  color: rgba(255,255,255,.8);
  font-family: 'Outfit', sans-serif;
  font-size: .78rem;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition);
}
.lang-btn:hover,
.lang-btn.active {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--white);
}
.lang-label {
  color: rgba(255,255,255,.5);
  font-size: .75rem;
  margin-right: 8px;
}

/* ── Container ── */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(13,43,94,.08);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.nav-logo img {
  height: 44px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(13,43,94,.12));
}
.nav-logo-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--blue-deep);
  letter-spacing: .06em;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}
.nav-links a {
  font-size: .95rem;
  font-weight: 500;
  color: var(--blue-deep);
  letter-spacing: .02em;
  position: relative;
  transition: color var(--transition);
}
.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -3px;
  width: 0; height: 2px;
  background: var(--gold);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--gold); }
.nav-links a:hover::after { width: 100%; }
.nav-cta {
  background: linear-gradient(135deg, var(--blue-light), var(--blue-mid));
  color: var(--white) !important;
  padding: 9px 22px;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(26,79,160,.4);
}
.nav-cta::after { display: none; }
.nav-cta:hover {
  background: linear-gradient(135deg, var(--gold-light), var(--gold)) !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(181,129,58,.45);
}

/* Hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--blue-deep); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero Section ── */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, var(--blue-deep) 0%, #1a3a7a 40%, #0d2245 100%);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 70% 50%, rgba(47,120,228,.25) 0%, transparent 70%),
    radial-gradient(ellipse 40% 60% at 10% 80%, rgba(181,129,58,.15) 0%, transparent 60%);
  pointer-events: none;
}
/* Animated particles */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: drift 20s linear infinite;
  pointer-events: none;
}
@keyframes drift { from { transform: translateY(0); } to { transform: translateY(-40px); } }

.hero .container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}
.hero-content { color: var(--white); }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(181,129,58,.2);
  border: 1px solid rgba(181,129,58,.4);
  color: var(--gold-light);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
  animation: fadeInDown .6s ease both;
}
.hero-badge svg { width: 14px; height: 14px; }
.hero-title {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  animation: fadeInDown .7s .1s ease both;
}
.hero-title span {
  background: linear-gradient(90deg, var(--gold-light), #f0c060);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.1rem;
  font-weight: 300;
  color: rgba(255,255,255,.75);
  margin-bottom: 36px;
  max-width: 480px;
  animation: fadeInDown .8s .2s ease both;
}
.hero-flags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 36px;
  animation: fadeInDown .85s .25s ease both;
}
.flag-badge {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  color: rgba(255,255,255,.85);
  font-size: .78rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  backdrop-filter: blur(6px);
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInDown .9s .3s ease both;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  color: var(--white);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(181,129,58,.5);
  transition: var(--transition);
  letter-spacing: .02em;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(181,129,58,.6);
  background: linear-gradient(135deg, #f0c060, var(--gold-light));
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.1);
  color: var(--white);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,.3);
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.2);
  transform: translateY(-2px);
}
/* Hero image side */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  animation: fadeInRight .9s .2s ease both;
}
.hero-image-wrap {
  position: relative;
  width: 100%;
  max-width: 480px;
}
.hero-image-wrap::before {
  content: '';
  position: absolute;
  inset: -20px;
  background: radial-gradient(ellipse, rgba(47,120,228,.3) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-image-wrap img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 1;
  width: 100%;
  object-fit: cover;
}
.hero-stat-cards {
  position: absolute;
  bottom: -20px;
  left: -30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 2;
}
.stat-card {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 170px;
}
.stat-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--blue-light), var(--blue-mid));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-icon svg { width: 18px; height: 18px; color: white; }
.stat-text { display: flex; flex-direction: column; }
.stat-value { font-size: .85rem; font-weight: 700; color: var(--dark); line-height: 1.2; }
.stat-label { font-size: .7rem; color: var(--grey-text); }

/* ── Section Common ── */
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.9rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--blue-deep);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-title span { color: var(--gold); }
.section-desc {
  font-size: 1.05rem;
  color: var(--grey-text);
  max-width: 580px;
  margin: 0 auto;
}

/* ── About / Product Intro ── */
.about {
  padding: 100px 0;
  background: var(--off-white);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}
.about-image {
  position: relative;
}
.about-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  width: 100%;
}
.about-image::after {
  content: '';
  position: absolute;
  bottom: -16px; right: -16px;
  width: 60%; height: 60%;
  background: linear-gradient(135deg, var(--blue-pale), rgba(181,129,58,.1));
  border-radius: var(--radius-md);
  z-index: -1;
}
.about-content {}
.about-title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 800;
  color: var(--blue-deep);
  margin-bottom: 20px;
  line-height: 1.25;
}
.about-title span { color: var(--gold); }
.about-desc {
  color: var(--grey-text);
  font-size: 1rem;
  margin-bottom: 28px;
  line-height: 1.75;
}
.about-points { display: flex; flex-direction: column; gap: 14px; }
.point-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: var(--white);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--gold);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.point-item:hover { transform: translateX(4px); box-shadow: var(--shadow-md); }
.point-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--gold-pale), rgba(181,129,58,.1));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}
.point-text strong { display: block; font-size: .9rem; font-weight: 700; color: var(--blue-deep); margin-bottom: 2px; }
.point-text span  { font-size: .83rem; color: var(--grey-text); }

/* ── Compatibility Ribbon ── */
.compat-ribbon {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-mid));
  padding: 40px 0;
  overflow: hidden;
}
.compat-ribbon .container {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.compat-label {
  color: rgba(255,255,255,.6);
  font-size: .85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .1em;
  white-space: nowrap;
}
.compat-items {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.compat-item {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--white);
  font-size: .85rem;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 50px;
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.compat-item:hover {
  background: rgba(181,129,58,.3);
  border-color: var(--gold-light);
}

/* ── Products Section ── */
.products {
  padding: 100px 0;
  background: var(--white);
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.product-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--grey-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(181,129,58,.3);
}
.product-card.featured {
  border: 2px solid var(--gold);
  box-shadow: 0 8px 30px rgba(181,129,58,.2);
}
.product-badge-wrap {
  position: absolute;
  top: 12px; right: 12px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 6px;
  align-items: flex-end;
}
.badge {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 50px;
}
.badge-bestseller { background: var(--gold); color: var(--white); }
.badge-popular    { background: var(--blue-light); color: var(--white); }
.badge-value      { background: #22c55e; color: var(--white); }
.product-img-wrap {
  position: relative;
  background: linear-gradient(135deg, #f0f5ff, #e8f0fe);
  aspect-ratio: 1/1;
  overflow: hidden;
}
.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.product-card:hover .product-img-wrap img { transform: scale(1.05); }
.product-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.product-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--blue-pale);
  color: var(--blue-mid);
  font-size: .75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
  width: fit-content;
}
.product-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-deep);
  margin-bottom: 8px;
  line-height: 1.3;
}
.product-desc {
  font-size: .82rem;
  color: var(--grey-text);
  margin-bottom: 16px;
  flex: 1;
  line-height: 1.6;
}
.product-footer {
  border-top: 1px solid var(--grey-light);
  padding-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.amazon-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: linear-gradient(135deg, #ff9900, #f0a000);
  color: var(--white);
  font-family: 'Outfit', sans-serif;
  font-size: .82rem;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  box-shadow: 0 3px 12px rgba(255,153,0,.4);
  transition: var(--transition);
  text-decoration: none;
}
.amazon-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,153,0,.55);
}
.amazon-btn svg { width: 14px; height: 14px; }
.amazon-logo-txt {
  font-size: .7rem;
  color: var(--grey-text);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Why Sonesta / Features ── */
.features {
  padding: 100px 0;
  background: linear-gradient(180deg, var(--off-white) 0%, var(--blue-pale) 100%);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--grey-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue-light), var(--gold));
  opacity: 0;
  transition: opacity var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 70px; height: 70px;
  background: linear-gradient(135deg, var(--blue-pale), rgba(26,79,160,.08));
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-size: 2rem;
  transition: var(--transition);
}
.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--blue-light), var(--blue-mid));
  transform: scale(1.1) rotate(-5deg);
}
.feature-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--blue-deep);
  margin-bottom: 10px;
}
.feature-desc { font-size: .88rem; color: var(--grey-text); line-height: 1.7; }

/* ── Stats Row ── */
.stats {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--blue-deep), #0d1f4a);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-item {}
.stat-num {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  background: linear-gradient(135deg, var(--gold-light), #f0c060);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 6px;
}
.stat-desc { color: rgba(255,255,255,.65); font-size: .88rem; font-weight: 400; }
.stat-sep {
  width: 1px;
  background: rgba(255,255,255,.1);
  align-self: stretch;
}

/* ── Instruction CTA ── */
.instruction-cta {
  padding: 100px 0;
  background: var(--off-white);
}
.instruction-box {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-mid));
  border-radius: var(--radius-xl);
  padding: 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  overflow: hidden;
  position: relative;
}
.instruction-box::before {
  content: '';
  position: absolute;
  top: -40%; right: -10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.instruction-content { color: var(--white); }
.instruction-content .section-tag { color: var(--gold-light); }
.instruction-title {
  font-size: clamp(1.6rem, 2.8vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 16px;
  line-height: 1.25;
}
.instruction-desc {
  color: rgba(255,255,255,.75);
  margin-bottom: 28px;
  font-size: 1rem;
  line-height: 1.7;
}
.qr-hint {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  backdrop-filter: blur(8px);
}
.qr-hint svg { width: 36px; height: 36px; color: var(--gold-light); flex-shrink: 0; }
.qr-hint p { font-size: .88rem; color: rgba(255,255,255,.8); line-height: 1.4; }
.qr-hint strong { color: var(--white); }
.instruction-image img {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  width: 100%;
}

/* ── Footer ── */
.footer {
  background: var(--dark);
  padding: 60px 0 30px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 50px;
}
.footer-brand img { height: 44px; width: auto; object-fit: contain; margin-bottom: 16px; filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3)); opacity: 1; }
.footer-brand p {
  color: rgba(255,255,255,.5);
  font-size: .85rem;
  line-height: 1.7;
  max-width: 300px;
  margin-bottom: 20px;
}
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 36px; height: 36px;
  background: rgba(255,255,255,.08);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,.6);
  font-size: .8rem;
  transition: var(--transition);
  text-decoration: none;
}
.social-btn:hover { background: var(--gold); color: var(--white); }
.footer-col h4 {
  color: var(--white);
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 16px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a {
  color: rgba(255,255,255,.45);
  font-size: .85rem;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--gold-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { color: rgba(255,255,255,.3); font-size: .78rem; }
.footer-langs { display: flex; gap: 8px; }
.footer-lang {
  background: rgba(255,255,255,.05);
  color: rgba(255,255,255,.4);
  font-size: .7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
}

/* ── Scroll Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal-right.visible { opacity: 1; transform: translateX(0); }

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .stats .stat-sep { display: none; }
  .hero .container { grid-template-columns: 1fr; gap: 40px; padding: 60px 0; }
  .hero-visual { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .instruction-box { grid-template-columns: 1fr; padding: 40px; gap: 32px; }
}
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 20px;
    gap: 20px;
    box-shadow: var(--shadow-md);
    border-top: 1px solid var(--grey-light);
  }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .stats-grid    { grid-template-columns: 1fr; }
  .hero-actions  { flex-direction: column; }
  .instruction-box { padding: 28px 20px; }
}