/* ===== Fonts ===== */
@font-face {
  font-family: 'Polin';
  src: url('../assets/fonts/Polin-Regular.woff2') format('woff2');
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: 'Polin';
  src: url('../assets/fonts/Polin-Bold.woff2') format('woff2');
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: 'Polin';
  src: url('../assets/fonts/Polin-Black.woff2') format('woff2');
  font-weight: 900;
  font-display: swap;
}

/* ===== Base ===== */
:root {
  --bg: #040910;
  --bg-soft: #081222;
  --card: #0a1626;
  --line: rgba(96, 200, 255, 0.14);
  --text: #eaf3fb;
  --muted: #9db4c8;
  --accent: #5bc9ff;
  --accent-deep: #2a9df4;
  --glow: rgba(91, 201, 255, 0.35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Polin', 'Heebo', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  direction: rtl;
  overflow-x: hidden;
  line-height: 1.6;
}

img, video { max-width: 100%; display: block; }

.container {
  width: min(1160px, 90vw);
  margin-inline: auto;
}

.section-tag {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1.2rem;
}

section { padding: clamp(4rem, 9vw, 7rem) 0; }

.accent { color: var(--accent); }

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #04121f;
  box-shadow: 0 0 24px var(--glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--glow);
}
.btn-ghost {
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn-ghost:hover { background: rgba(91, 201, 255, 0.1); }

/* ===== Header ===== */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding: 1rem 0;
  transition: padding 0.3s;
}
.site-header.scrolled { padding: 0.6rem 0; }
.header-inner {
  width: min(1240px, 94vw);
  margin-inline: auto;
  display: flex;
  /* logo on the left, menu on the right (page is RTL) */
  flex-direction: row-reverse;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.55rem 1.4rem;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: background 0.35s, border-color 0.35s, box-shadow 0.35s, backdrop-filter 0.35s;
}
/* dark glass frame once the page is scrolled */
.site-header.scrolled .header-inner {
  background: rgba(6, 14, 26, 0.55);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  backdrop-filter: blur(18px) saturate(1.3);
  border-color: var(--line);
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}
.logo-img { height: 34px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}
.main-nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: color 0.2s;
}
.main-nav a:hover { color: var(--accent); }
.nav-cta {
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 0.45rem 1.3rem;
  color: var(--accent) !important;
}
.nav-cta:hover { background: rgba(91, 201, 255, 0.12); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ===== Hero: sticky owl background, scrolling screens + zoom ===== */
.hero {
  position: relative;
  height: 300svh;
  min-height: 1680px;
  padding: 0;
}
.hero-bg {
  position: sticky;
  top: 0;
  height: 100svh;
  min-height: 560px;
  overflow: hidden;
}
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* top-align the frame so the owl sits lower on screen */
  object-position: center top;
  /* zoom toward the owl itself, slightly above center */
  transform-origin: center 40%;
  will-change: transform;
}
.hero-zoom-spacer {
  height: 100svh;
  min-height: 560px;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(4, 9, 16, 0.55) 0%, rgba(4, 9, 16, 0.25) 35%, rgba(4, 9, 16, 0.35) 100%);
}
.hero-layers {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
}
.hero-content {
  height: 100svh;
  min-height: 560px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  text-align: center;
  padding-bottom: clamp(3rem, 7vh, 5rem);
}
.hero-title {
  font-weight: 900;
  line-height: 0.95;
  display: flex;
  flex-direction: column;
  text-shadow: 0 0 60px rgba(0, 0, 0, 0.6);
}
.hero-line1 {
  font-size: clamp(4rem, 13vw, 10.5rem);
  letter-spacing: 0.01em;
}
.hero-line2 {
  font-size: clamp(2.6rem, 8.5vw, 6.8rem);
  color: var(--accent);
  text-shadow: 0 0 40px var(--glow);
}
.hero-sub {
  margin-top: 1.4rem;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--text);
  opacity: 0.9;
}

.scroll-hint {
  position: absolute;
  bottom: 1.4rem;
  inset-inline: 0;
  margin-inline: auto;
  width: max-content;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.85rem;
  background: none;
  border: none;
  font-family: inherit;
  cursor: pointer;
}
.scroll-hint-arrow {
  width: 18px;
  height: 18px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
  animation: bounce 1.8s infinite;
}
@keyframes bounce {
  0%, 100% { transform: rotate(-45deg) translate(0, 0); opacity: 1; }
  50% { transform: rotate(-45deg) translate(-6px, 6px); opacity: 0.4; }
}

/* ===== Claim (second hero screen, scrolls over the owl) ===== */
.claim {
  height: 100svh;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.claim-inner {
  text-align: center;
  max-width: 760px;
}
.claim h2 {
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 1.2rem;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.75);
}
.claim p {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--text);
  opacity: 0.92;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.8);
}

/* ===== Marquee strip: dark glass, moves with the scroll ===== */
.marquee {
  position: relative;
  z-index: 3;
  overflow: hidden;
  background: rgba(6, 14, 26, 0.55);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border-block: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: 1.2rem 0;
}
.marquee-track {
  display: flex;
  width: max-content;
  will-change: transform;
}
.marquee-group {
  display: flex;
  align-items: center;
  white-space: nowrap;
}
.marquee-group span {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  color: var(--text);
  padding-inline: 1.4rem;
}
.marquee-group .dot {
  padding-inline: 0;
  color: var(--accent);
  font-size: 1.1rem;
  text-shadow: 0 0 14px var(--glow);
}

/* ===== Smart: full-bleed video, glass panel on the right ===== */
.smart {
  position: relative;
  overflow: hidden;
  background: var(--bg);
}
.smart-bg {
  position: absolute;
  inset: 0;
}
.smart-bg video {
  /* slightly smaller than the section so the owl is never cropped;
     the dark edges melt into the page background */
  position: absolute;
  top: 50%;
  left: 25%;
  transform: translate(-50%, -50%);
  height: 86%;
  width: auto;
  max-width: none;
}
/* the rotating-screens loop fades in when the first video ends */
.smart-video-loop {
  opacity: 0;
  transition: opacity 1.2s ease;
}
.smart-video-loop.on { opacity: 1; }
.smart-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(4, 9, 16, 0) 55%, var(--bg) 92%),
    linear-gradient(to bottom, var(--bg) 0%, rgba(4, 9, 16, 0.15) 25%, rgba(4, 9, 16, 0.15) 75%, var(--bg) 100%);
}
.smart-panel {
  position: relative;
  z-index: 2;
  width: min(640px, 92vw);
  /* pin the panel to the right half; the video stays visible on the left */
  margin-inline-end: auto;
  margin-inline-start: min(5vw, 4rem);
  background: rgba(6, 14, 26, 0.55);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: clamp(1.8rem, 3.5vw, 3rem);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}
.smart-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem 2.5rem;
  margin-top: 2rem;
}
.smart-card {
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
}
.card-num {
  font-size: 1rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.6rem;
}
.smart-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.smart-card p { color: var(--muted); font-size: 1rem; }

/* ===== Services: 3D ring of screens around a central title ===== */
.services {
  background: var(--bg-soft);
  overflow: hidden;
}
.ring-scene {
  position: relative;
  height: clamp(500px, 74vh, 700px);
  perspective: 1500px;
}
/* soft cyan halo behind the ring, echoing the light ring */
.ring-scene::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 52% 46% at 50% 54%, rgba(91, 201, 255, 0.15), transparent 70%);
  pointer-events: none;
}
.ring-stage {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
}
.ring-center {
  position: absolute;
  inset-inline: 0;
  top: 50%;
  transform: translateY(-50%) translateZ(0);
  text-align: center;
  pointer-events: none;
}
.ring-title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  text-shadow: 0 2px 40px rgba(0, 0, 0, 0.85);
}
.ring {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 0.9s cubic-bezier(0.33, 1, 0.68, 1);
}
.ring-item {
  --ring-r: clamp(300px, 34vw, 480px);
  position: absolute;
  top: 50%;
  left: 50%;
  width: clamp(190px, 23vw, 330px);
  transform: translate(-50%, -50%) rotateY(calc(var(--i) * 60deg)) translateZ(var(--ring-r));
  transform-style: preserve-3d;
}
/* screens facing away show empty glass instead of mirrored content */
.screen-body img,
.slide-placeholder {
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}
/* a flipped dark tint that only shows when a screen faces away,
   so reversed screens read dimmer than the front one */
.ring-item::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 14px;
  background: rgba(3, 8, 15, 0.45);
  transform: rotateY(180deg) translateZ(1px);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  pointer-events: none;
}
.ring-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(6, 14, 26, 0.55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--accent);
  font-size: 1.9rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
  /* the ‹ › glyphs get bidi-mirrored on an RTL page; force LTR so each arrow points its own way */
  direction: ltr;
}
.ring-btn:hover {
  border-color: var(--accent);
  background: rgba(91, 201, 255, 0.12);
  box-shadow: 0 0 20px var(--glow);
}
.ring-btn-right { right: clamp(0.8rem, 3vw, 3rem); }
.ring-btn-left { left: clamp(0.8rem, 3vw, 3rem); }

/* the holographic screen itself */
.screen {
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(165deg, rgba(190, 228, 255, 0.14), rgba(110, 175, 255, 0.06));
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(150, 215, 255, 0.4);
  box-shadow:
    0 0 24px rgba(91, 201, 255, 0.25),
    0 18px 50px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
/* inside the 3D ring: skip backdrop-filter (unreliable in 3D), slightly
   stronger tint instead so the glass reads from both sides */
.ring-item .screen {
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
  background: linear-gradient(165deg, rgba(190, 228, 255, 0.18), rgba(110, 175, 255, 0.09));
}
.screen-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  background: rgba(180, 220, 255, 0.1);
  border-bottom: 1px solid rgba(150, 215, 255, 0.25);
}
.screen-bar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(190, 228, 255, 0.5);
}
.screen-bar i {
  flex: 1;
  height: 10px;
  margin-inline-start: 8px;
  border-radius: 999px;
  background: rgba(190, 228, 255, 0.18);
}
.screen-body img { width: 100%; display: block; }
.slide-placeholder {
  aspect-ratio: 16 / 9.2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}
.slide-num {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--accent);
  opacity: 0.8;
}
.slide-note { color: var(--muted); font-size: 1rem; }

/* ===== Stats ===== */
.stats {
  padding: clamp(3rem, 6vw, 4.5rem) 0;
  border-block: 1px solid var(--line);
  background: var(--bg);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2rem;
  text-align: center;
}
.stat-num {
  display: block;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 900;
  color: var(--accent);
  text-shadow: 0 0 30px var(--glow);
}
.stat-label { color: var(--muted); font-size: 1rem; }

/* ===== About: same treatment as the smart section ===== */
.about {
  position: relative;
  overflow: hidden;
  background: var(--bg);
}
.about-bg {
  position: absolute;
  inset: 0;
}
.about-bg video {
  /* mirrored: Einav on the right, panel on the left */
  position: absolute;
  top: 50%;
  left: 75%;
  transform: translate(-50%, -50%);
  height: 100%;
  width: auto;
  max-width: none;
}
.about-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to left, rgba(4, 9, 16, 0) 55%, var(--bg) 92%),
    linear-gradient(to bottom, var(--bg) 0%, rgba(4, 9, 16, 0.15) 25%, rgba(4, 9, 16, 0.15) 75%, var(--bg) 100%);
}
.about-panel {
  position: relative;
  z-index: 2;
  width: min(640px, 92vw);
  margin-inline-start: auto;
  margin-inline-end: min(5vw, 4rem);
  background: rgba(6, 14, 26, 0.55);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: clamp(1.8rem, 3.5vw, 3rem);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}
.about-panel p { color: var(--muted); margin-bottom: 1rem; font-size: 1.08rem; }
.about-panel .btn { margin-top: 1rem; }

/* ===== Reviews ===== */
.reviews { background: var(--bg-soft); }
.reviews-summary {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  margin-bottom: 2.2rem;
}
.review-stars {
  color: #fbbc04;
  letter-spacing: 3px;
  font-size: 1.05rem;
  text-shadow: 0 0 12px rgba(251, 188, 4, 0.35);
}
.reviews-grid {
  columns: 3 300px;
  column-gap: 1.4rem;
}
.review-card {
  break-inside: avoid;
  margin-bottom: 1.4rem;
  background: rgba(6, 14, 26, 0.55);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1.5rem 1.6rem;
  transition: transform 0.3s, border-color 0.3s;
}
.review-card:hover {
  transform: translateY(-4px);
  border-color: rgba(91, 201, 255, 0.4);
}
.review-card p {
  color: var(--text);
  opacity: 0.92;
  margin: 0.7rem 0 1rem;
  font-size: 1.02rem;
}
.review-name {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.95rem;
}
.reviews-note {
  margin-top: 1.6rem;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ===== Contact ===== */
.contact {
  position: relative;
  overflow: hidden;
  text-align: center;
}
.contact-bg {
  position: absolute;
  inset: 0;
  opacity: 0.25;
}
.contact-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.contact::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, var(--bg) 0%, rgba(4, 9, 16, 0.4) 50%, var(--bg) 100%);
  z-index: 1;
}
.contact-inner { position: relative; z-index: 2; }
.contact-sub {
  color: var(--muted);
  font-size: 1.15rem;
  margin-bottom: 2rem;
}
.lead-form {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.lead-form input {
  width: min(260px, 80vw);
  padding: 0.85rem 1.3rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(6, 14, 26, 0.55);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.lead-form input::placeholder { color: var(--muted); }
.lead-form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 16px rgba(91, 201, 255, 0.2);
}
.form-status {
  min-height: 1.4rem;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 1.6rem;
}
.contact-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.footer-logo { height: 52px; width: auto; opacity: 0.9; }
.footer-note { color: var(--muted); font-size: 0.9rem; }

/* ===== Reveal on scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Mobile ===== */
@media (max-width: 820px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(75vw, 320px);
    background: rgba(4, 9, 16, 0.97);
    backdrop-filter: blur(16px);
    flex-direction: column;
    justify-content: center;
    gap: 2.2rem;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav a { font-size: 1.3rem; }

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

  /* ===== screens ring becomes a vertical wheel (ferris-wheel style) ===== */
  .ring-scene { height: auto; perspective: none; }
  .ring-scene::before { display: none; }
  .ring-stage { position: static; perspective: 1000px; }
  .ring-center {
    position: static;
    transform: none;
    margin-bottom: 1.8rem;
  }
  .ring {
    position: relative;
    height: min(126vw, 590px);
    transform-style: preserve-3d;
    /* finger-drag spins the wheel instead of scrolling the page */
    touch-action: none;
  }
  .ring-item {
    --ring-r: min(56vw, 260px);
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(72vw, 350px);
    transform: translate(-50%, -50%) rotateX(calc(var(--i) * 60deg)) translateZ(var(--ring-r));
  }
  /* arrows sit beside the wheel and point up/down (vertical wheel) */
  .ring-btn {
    top: auto;
    bottom: min(56vw, 265px);
    transform: translateY(-50%) rotate(90deg);
    /* keep the mirrored glyphs so the up/down orientation stays as designed */
    direction: rtl;
  }

  /* ===== smart & about: the owl videos stack above the panels,
     fully visible instead of hiding behind the glass ===== */
  .smart, .about { display: flex; flex-direction: column; }
  .smart-bg, .about-bg {
    position: relative;
    inset: auto;
    height: 62vw;
    margin-bottom: 1.5rem;
  }
  .smart-bg video, .about-bg video {
    left: 50%;
    height: 94%;
  }
  .smart-shade, .about-shade {
    background: linear-gradient(to bottom, var(--bg) 0%, rgba(4, 9, 16, 0) 20%, rgba(4, 9, 16, 0) 80%, var(--bg) 100%);
  }
  .smart-panel, .about-panel {
    width: min(560px, 94vw);
    margin-inline: auto;
  }
  .smart-grid { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ===== WhatsApp floating button ===== */
.whatsapp-float {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 999;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 22px rgba(37, 211, 102, 0.45);
}
@media (max-width: 640px) {
  .whatsapp-float {
    width: 50px;
    height: 50px;
    bottom: 16px;
    right: 16px;
  }
}