@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;600;700;800;900&family=DM+Sans:ital,wght@0,400;0,500;0,600;1,400&display=swap');

:root {
  --cyan:       #00a1ce;
  --cyan-dark:  #0082a8;
  --cyan-light: #b3efff;
  --coral:      #ff6347;
  --coral-dark: #e5503a;
  --thistle:    #d8bfd8;
  --white:      #ffffff;
  --off-white:  #f7f9fb;
  --gray-100:   #f0f4f8;
  --gray-200:   #e2e8f0;
  --gray-500:   #718096;
  --gray-700:   #2d3748;
  --text:       #1a202c;

  /* Gradients */
  --grad-brand:    linear-gradient(135deg, var(--thistle) 0%, var(--cyan) 55%, var(--cyan-light) 100%);
  --grad-hero:
    linear-gradient(80deg, rgba(255,255,255,0.08) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.08) 75%),
    linear-gradient(45deg, rgba(255,255,255,0.08) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.08) 75%),
    linear-gradient(135deg, var(--thistle) 0%, var(--cyan) 55%, var(--cyan-light) 100%);
  --grad-footer:
    linear-gradient(80deg, rgba(255,255,255,0.07) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.07) 75%),
    linear-gradient(45deg, rgba(255,255,255,0.07) 25%, transparent 25%, transparent 75%, rgba(255,255,255,0.07) 75%),
    linear-gradient(135deg, var(--thistle) 0%, var(--cyan) 55%, var(--cyan-light) 100%);

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.07);
  --shadow-md:  0 6px 24px rgba(0,0,0,0.10);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.13);
  --shadow-card: 0 4px 20px rgba(0, 161, 206, 0.10);
  --shadow-card-hover: 0 14px 40px rgba(0, 161, 206, 0.22);

  /* Radius */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Transitions */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --t-fast: 0.2s var(--ease);
  --t-med:  0.38s var(--ease);
  --t-slow: 0.6s var(--ease);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', 'Poppins', sans-serif;
  color: var(--text);
  background: var(--grad-brand);
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: 'Outfit', 'Poppins', sans-serif;
  line-height: 1.15;
}

/* =============================================
   SCROLL REVEAL — base state
   ============================================= */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.65s var(--ease), transform 0.65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* =============================================
   HEADER
   ============================================= */
header {
  backdrop-filter: blur(14px) saturate(1.6);
  -webkit-backdrop-filter: blur(14px) saturate(1.6);
  background-color: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 1.1em 0;
  position: fixed;
  top: 0; width: 100%;
  z-index: 1000;
  transition: background-color var(--t-med), box-shadow var(--t-med), border-color var(--t-med), padding var(--t-med);
  will-change: background-color;
}

header.scrolled {
  background-color: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: 0 2px 20px rgba(0,0,0,0.07);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 clamp(1.2em, 4vw, 3em);
}

header h1 {
  font-size: clamp(0.95em, 2vw, 1.25em);
  font-weight: 800;
  color: var(--white);
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: color var(--t-med);
}

header.scrolled h1 { color: var(--cyan); }

header nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: clamp(0.5em, 1.5vw, 1.6em);
}

header nav ul li a {
  color: rgba(255,255,255,0.92);
  text-decoration: none;
  font-size: clamp(0.78em, 1vw, 0.95em);
  font-weight: 500;
  white-space: nowrap;
  padding: 0.25em 0;
  position: relative;
  transition: color var(--t-fast);
}

header nav ul li a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--coral);
  border-radius: 2px;
  transition: width var(--t-med);
}

header nav ul li a:hover::after,
header nav ul li a.active::after { width: 100%; }

header.scrolled nav ul li a { color: var(--gray-700); }
header.scrolled nav ul li a:hover { color: var(--cyan); }

.install-link {
  background: var(--coral);
  padding: 0.48em 1.2em;
  border-radius: 50px;
  color: var(--white) !important;
  font-weight: 600;
  font-size: clamp(0.78em, 1vw, 0.92em);
  box-shadow: 0 4px 14px rgba(255,99,71,0.35);
  transition: background var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
  flex-shrink: 0;
}

.install-link:hover {
  background: var(--coral-dark) !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255,99,71,0.45) !important;
}

.install-link::after { display: none !important; }

header.scrolled .install-link,
.install-link.scrolled {
  background: var(--cyan) !important;
  box-shadow: 0 4px 14px rgba(0,161,206,0.35) !important;
}

/* =============================================
   HAMBURGER
   ============================================= */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px; height: 20px;
  cursor: pointer;
  background: none; border: none; padding: 0;
  flex-shrink: 0; z-index: 1100;
}

.hamburger span {
  display: block; width: 100%; height: 2.5px;
  background: var(--white);
  border-radius: 3px;
  transition: transform 0.32s cubic-bezier(.77,0,.18,1),
              opacity   0.28s ease,
              background-color var(--t-med);
  will-change: transform, opacity;
}

header.scrolled .hamburger span { background: var(--cyan); }

.hamburger.open span:nth-child(1) { transform: translateY(8.75px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-8.75px) rotate(-45deg); }

/* =============================================
   MOBILE NAV OVERLAY
   ============================================= */
.mobile-nav {
  display: none;
  position: fixed; inset: 0;
  background: linear-gradient(145deg, var(--cyan-dark) 0%, var(--cyan) 60%, #00c4f5 100%);
  z-index: 999;
  flex-direction: column;
  align-items: center; justify-content: center;
  gap: clamp(1em, 3.5vh, 1.8em);
  opacity: 0; transform: translateY(-12px);
  transition: opacity 0.32s var(--ease), transform 0.32s var(--ease);
  pointer-events: none;
}

.mobile-nav.open {
  opacity: 1; transform: translateY(0);
  pointer-events: all;
}

.mobile-nav a {
  color: var(--white);
  text-decoration: none;
  font-family: 'Outfit', sans-serif;
  font-size: clamp(1.3em, 5vw, 1.85em);
  font-weight: 700;
  letter-spacing: 0.5px;
  transition: color var(--t-fast), transform var(--t-fast);
}

.mobile-nav a:hover { color: var(--coral); transform: scale(1.04); }

.mobile-nav .install-link {
  background: var(--coral) !important;
  padding: 0.6em 2.2em !important;
  border-radius: 50px !important;
  box-shadow: 0 6px 20px rgba(255,99,71,0.4) !important;
  margin-top: 0.6em;
  font-size: clamp(1em, 3.5vw, 1.3em) !important;
}

/* =============================================
   HERO
   ============================================= */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--grad-hero);
  color: var(--white);
  text-align: center;
  display: flex;
  align-items: center; justify-content: center;
  flex-direction: column;
  overflow: hidden;
  padding: clamp(6.5em, 14vw, 9.5em) clamp(1em, 5vw, 3em) clamp(4em, 8vw, 6em);
}

/* Decorative blobs */
.hero::before {
  content: '';
  position: absolute;
  width: clamp(300px, 50vw, 700px);
  height: clamp(300px, 50vw, 700px);
  background: radial-gradient(circle, rgba(255,255,255,0.13) 0%, transparent 70%);
  border-radius: 50%;
  top: -10%; left: -10%;
  pointer-events: none;
  animation: blobFloat 8s ease-in-out infinite alternate;
}

.hero::after {
  content: '';
  position: absolute;
  width: clamp(200px, 35vw, 500px);
  height: clamp(200px, 35vw, 500px);
  background: radial-gradient(circle, rgba(255,255,255,0.10) 0%, transparent 70%);
  border-radius: 50%;
  bottom: 5%; right: -5%;
  pointer-events: none;
  animation: blobFloat 10s ease-in-out infinite alternate-reverse;
}

@keyframes blobFloat {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(4%, 6%) scale(1.08); }
}

.hero .container {
  position: relative; z-index: 1;
  width: 100%; max-width: 960px;
}

/* Hero badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(8px);
  padding: 0.38em 1.1em;
  border-radius: 50px;
  font-size: clamp(0.72em, 1.2vw, 0.85em);
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: 1.2em;
  animation: fadeDown 0.7s var(--ease) both;
}

.hero-badge .dot {
  width: 7px; height: 7px;
  background: #7dffd8;
  border-radius: 50%;
  box-shadow: 0 0 6px #7dffd8;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Phone image stack */
.image-stack {
  position: relative;
  width: clamp(180px, 38vw, 500px);
  height: clamp(180px, 38vw, 500px);
  margin: 0 auto clamp(1.8em, 4vw, 3em);
  filter: drop-shadow(0 24px 60px rgba(0,0,0,0.3));
  animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

.stacked-image {
  position: absolute;
  inset: 0; width: 100%; height: 100%;
  object-fit: contain;
  will-change: transform;
}

.stacked-image.front {
  z-index: 2;
  transform: scale(1.18);
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
}

.stacked-image:nth-child(2) {
  z-index: 1;
  transform: translateX(-38%) rotate(-10deg) scale(0.88);
  filter: brightness(0.88) drop-shadow(0 10px 24px rgba(0,0,0,0.25));
}

.stacked-image:nth-child(3) {
  z-index: 1;
  transform: translateX(38%) rotate(10deg) scale(0.88);
  filter: brightness(0.88) drop-shadow(0 10px 24px rgba(0,0,0,0.25));
}

.hero h2 {
  font-size: clamp(1.3em, 3.8vw, 2.4em);
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 0.5em;
  text-shadow: 0 2px 16px rgba(0,0,0,0.15);
  animation: fadeUp 0.8s 0.2s var(--ease) both;
}

.hero p {
  font-size: clamp(0.95em, 1.9vw, 1.25em);
  margin-bottom: 2em;
  opacity: 0.9;
  max-width: 580px;
  margin-left: auto; margin-right: auto;
  font-weight: 400;
  animation: fadeUp 0.8s 0.35s var(--ease) both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.btn {
  background: var(--white);
  color: var(--cyan);
  padding: 0.75em clamp(2em, 5vw, 3.5em);
  text-decoration: none;
  border-radius: 50px;
  font-family: 'Outfit', sans-serif;
  font-size: clamp(0.9em, 1.4vw, 1.05em);
  font-weight: 700;
  display: inline-block;
  box-shadow: 0 8px 28px rgba(0,0,0,0.18);
  transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast), box-shadow var(--t-fast);
  animation: fadeUp 0.8s 0.5s var(--ease) both;
}

.btn:hover {
  background: var(--coral);
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(255,99,71,0.4);
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 2.2em;
  left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column;
  align-items: center; gap: 0.4em;
  color: rgba(255,255,255,0.6);
  font-size: 0.72em; letter-spacing: 1px;
  text-transform: uppercase;
  animation: fadeUp 1s 1s var(--ease) both;
}

.scroll-hint span { font-size: 1.4em; animation: bounce 2s ease-in-out infinite; }

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(5px); }
}

/* =============================================
   SECTION SHARED
   ============================================= */
.section-intro {
  text-align: center;
  margin-bottom: clamp(1.5em, 4vw, 2.5em);
}

.section-label {
  display: inline-block;
  font-size: clamp(0.68em, 1vw, 0.78em);
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.5em;
  padding: 0.3em 1em;
  background: rgba(0,161,206,0.1);
  border-radius: 50px;
}

.section-title {
  font-size: clamp(1.8em, 4.5vw, 3.4em);
  font-weight: 800;
  color: var(--coral);
  letter-spacing: -1px;
  line-height: 1.1;
}

/* =============================================
   FEATURES SECTION
   ============================================= */
.features {
  padding: clamp(4em, 8vw, 7em) clamp(1em, 5vw, 3em);
  background: var(--off-white);
  position: relative;
  overflow: hidden;
}

/* Subtle top wave divider */
.features::before {
  content: '';
  position: absolute;
  top: -2px; left: 0; right: 0;
  height: 60px;
  background: var(--grad-brand);
  clip-path: ellipse(60% 100% at 50% 0%);
  opacity: 0.18;
  pointer-events: none;
}

.features .container {
  max-width: 1300px;
  margin: 0 auto;
}

.cards {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1em, 2.2vw, 1.6em);
  justify-content: center;
}

.feature-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: clamp(1.6em, 3vw, 2.4em) clamp(1.2em, 2.5vw, 2em);
  text-align: center;
  flex: 1 1 clamp(180px, 20vw, 240px);
  max-width: 248px;
  border: 1px solid transparent;
  transition: transform var(--t-med), box-shadow var(--t-med), border-color var(--t-med);
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.feature-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,161,206,0.06), rgba(0,161,206,0));
  opacity: 0;
  transition: opacity var(--t-med);
  border-radius: inherit;
}

.feature-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(0,161,206,0.2);
}

.feature-item:hover::before { opacity: 1; }

.icon-wrap {
  width: clamp(52px, 7vw, 68px);
  height: clamp(52px, 7vw, 68px);
  background: linear-gradient(135deg, rgba(0,161,206,0.12), rgba(0,161,206,0.05));
  border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1em;
  font-size: clamp(1.6em, 2.8vw, 2.2em);
  transition: transform var(--t-med), background var(--t-med);
}

.feature-item:hover .icon-wrap {
  transform: scale(1.08) rotate(-3deg);
  background: linear-gradient(135deg, rgba(0,161,206,0.22), rgba(0,161,206,0.1));
}

.feature-item h3 {
  font-size: clamp(0.88em, 1.3vw, 1.02em);
  font-weight: 700;
  color: var(--cyan-dark);
  margin-bottom: 0.45em;
}

.feature-item p {
  font-size: clamp(0.76em, 1.05vw, 0.86em);
  color: var(--gray-500);
  line-height: 1.6;
}

/* =============================================
   TESTIMONIALS (REVIEWS)
   ============================================= */
.testimonials {
  padding: clamp(4em, 8vw, 7em) clamp(1em, 5vw, 3em);
  background: var(--gray-100);
  position: relative;
}

.testimonials .container {
  max-width: 1300px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: center;
  gap: clamp(1.5em, 3vw, 3em);
}

.video-container {
  flex: 0 0 auto;
  width: min(680px, 56vw);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.video-container::before {
  content: '';
  position: absolute;
  inset: -3px;
  background: linear-gradient(135deg, var(--cyan), var(--thistle));
  border-radius: calc(var(--radius-lg) + 3px);
  z-index: -1;
  opacity: 0.5;
}

.video-container iframe {
  display: block; width: 100%;
  aspect-ratio: 16/9; height: auto;
  border-radius: var(--radius-lg);
}

/* Testimonial cards */
.testimonial-cards-col {
  display: flex;
  flex-direction: column;
  gap: clamp(1em, 2vw, 1.4em);
  flex: 1 1 clamp(240px, 28vw, 320px);
}

.testimonial-item {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: clamp(1.4em, 2.5vw, 1.9em) clamp(1.2em, 2vw, 1.7em);
  position: relative;
  border: 1px solid var(--gray-200);
  transition: transform var(--t-med), box-shadow var(--t-med);
  will-change: transform;
}

.testimonial-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.quote-icon {
  font-family: Georgia, serif;
  font-size: 4em;
  line-height: 0.6;
  color: var(--cyan-light);
  position: absolute;
  top: 0.5em; left: 0.55em;
  pointer-events: none;
  user-select: none;
}

.testimonial-top {
  display: flex;
  align-items: center;
  gap: 0.85em;
  margin-bottom: 0.9em;
}

.circle-frame {
  width: clamp(48px, 7vw, 64px);
  height: clamp(48px, 7vw, 64px);
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  border: 3px solid var(--cyan-light);
  box-shadow: 0 2px 10px rgba(0,161,206,0.2);
}

.circle-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.testimonial-meta h4 {
  font-size: clamp(0.88em, 1.2vw, 1em);
  font-weight: 700;
  color: var(--cyan-dark);
  margin-bottom: 0.2em;
}

.stars {
  color: #f6ad2e;
  font-size: clamp(0.7em, 1vw, 0.85em);
  letter-spacing: 1px;
}

.testimonial-item p {
  font-size: clamp(0.8em, 1.1vw, 0.9em);
  color: var(--gray-500);
  line-height: 1.65;
  font-style: italic;
  padding-top: 0.3em;
}

/* =============================================
   ABOUT US
   ============================================= */
.about-us {
  padding: clamp(4em, 8vw, 7em) clamp(1em, 5vw, 3em);
  background: var(--off-white);
}

.about-us .container {
  max-width: 1300px;
  margin: 0 auto;
}

.about-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: clamp(1.6em, 2.8vw, 2.2em) clamp(1.2em, 2.2vw, 1.8em);
  text-align: center;
  flex: 1 1 clamp(180px, 20vw, 240px);
  max-width: 248px;
  border: 1px solid transparent;
  transition: transform var(--t-med), box-shadow var(--t-med), border-color var(--t-med);
  will-change: transform;
}

.about-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(0,161,206,0.18);
}

.about-item .circle-frame {
  width: clamp(70px, 10vw, 96px);
  height: clamp(70px, 10vw, 96px);
  margin: 0 auto 1.1em;
  border: 3px solid var(--cyan-light);
  box-shadow: 0 4px 16px rgba(0,161,206,0.2);
  transition: transform var(--t-med), box-shadow var(--t-med);
}

.about-item:hover .circle-frame {
  transform: scale(1.06);
  box-shadow: 0 6px 24px rgba(0,161,206,0.32);
}

.about-item h3 {
  font-size: clamp(0.9em, 1.3vw, 1.05em);
  font-weight: 700;
  color: var(--cyan-dark);
  margin-bottom: 0.35em;
}

.about-item p {
  font-size: clamp(0.74em, 1.05vw, 0.84em);
  color: var(--gray-500);
  line-height: 1.6;
}

/* =============================================
   FOOTER
   ============================================= */
footer {
  background: var(--grad-footer);
  color: var(--white);
  text-align: center;
  padding: clamp(2.5em, 5vw, 4em) 1em;
  position: relative;
}

footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.06);
  pointer-events: none;
}

footer .container {
  position: relative; z-index: 1;
  max-width: 1200px;
  margin: 0 auto; padding: 0 1em;
}

footer .footer-brand {
  font-family: 'Outfit', sans-serif;
  font-size: clamp(1.1em, 2vw, 1.5em);
  font-weight: 800;
  letter-spacing: 2px;
  margin-bottom: 0.3em;
}

footer p {
  margin: 0.4em 0;
  font-size: clamp(0.8em, 1.2vw, 0.92em);
  opacity: 0.88;
}

footer .divider {
  width: 40px; height: 2px;
  background: rgba(255,255,255,0.4);
  border-radius: 2px;
  margin: 1em auto;
}

footer .social-icons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1em;
  margin: 0.8em 0 1.2em;
}

footer .social-icons a {
  color: var(--white);
  text-decoration: none;
  font-size: clamp(0.82em, 1.3vw, 0.98em);
  display: flex; align-items: center; gap: 0.5em;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 0.45em 1.1em;
  border-radius: 50px;
  backdrop-filter: blur(6px);
  transition: background var(--t-fast), transform var(--t-fast);
}

footer .social-icons a:hover {
  background: rgba(255,255,255,0.26);
  transform: translateY(-2px);
}

footer .social-icons i { font-size: 1em; }

/* =============================================
   TABLET — ≤1024px
   ============================================= */
@media (max-width: 1024px) {
  header nav ul { gap: 0.7em; }

  .video-container { width: min(600px, 88vw); }

  .testimonials .container { flex-direction: column; align-items: center; }

  .testimonial-cards-col {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
  }

  .testimonial-item {
    flex: 1 1 clamp(240px, 40vw, 320px);
    max-width: 340px;
  }

  .image-stack { width: clamp(180px, 46vw, 420px); height: clamp(180px, 46vw, 420px); }
}

/* =============================================
   MOBILE — ≤768px
   ============================================= */
@media (max-width: 768px) {
  header { padding: 1em 0; }
  header nav { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: flex; }

  .hero {
    min-height: auto;
    padding: clamp(5.5em, 14vw, 7em) 1.2em clamp(3em, 7vw, 5em);
  }

  .image-stack {
    width: clamp(200px, 70vw, 340px);
    height: clamp(200px, 70vw, 340px);
  }

  .stacked-image:nth-child(2) { transform: translateX(-30%) rotate(-10deg) scale(0.86); }
  .stacked-image:nth-child(3) { transform: translateX(30%) rotate(10deg) scale(0.86); }

  .features, .testimonials, .about-us {
    padding: 3.5em 1em;
  }

  .feature-item, .about-item {
    flex: 1 1 calc(50% - 1em);
    max-width: calc(50% - 0.5em);
    min-width: 140px;
  }

  .video-container {
    width: 100%;
    border-radius: var(--radius-md);
  }

  .testimonial-cards-col {
    flex-direction: column;
    width: 100%;
    max-width: 460px;
  }

  .testimonial-item { max-width: 100%; }

  footer .social-icons { flex-direction: column; align-items: center; }

  .scroll-hint { display: none; }
}

/* =============================================
   SMALL MOBILE — ≤480px
   ============================================= */
@media (max-width: 480px) {
  .hero { padding: 5.5em 1em 3em; }

  .image-stack { width: clamp(170px, 76vw, 290px); height: clamp(170px, 76vw, 290px); }
  .stacked-image:nth-child(2) { transform: translateX(-27%) rotate(-9deg) scale(0.84); }
  .stacked-image:nth-child(3) { transform: translateX(27%) rotate(9deg) scale(0.84); }

  .hero h2 { font-size: clamp(1.1em, 5.5vw, 1.5em); }
  .hero p  { font-size: clamp(0.88em, 4vw, 1em); }

  .feature-item, .about-item {
    flex: 1 1 100%; max-width: 100%; min-width: 0;
  }

  .section-title { font-size: clamp(1.5em, 7.5vw, 2em); }
}

/* =============================================
   TINY — ≤360px
   ============================================= */
@media (max-width: 360px) {
  header h1 { font-size: 0.82em; }
  .image-stack { width: 80vw; height: 80vw; }
  .btn { padding: 0.65em 1.6em; font-size: 0.88em; }
}