/* ==============================================
   BTECH — Celulares e Informática
   styles.css — shared styles for all pages
   Image paths are relative to this file:
   ../btech-logo.png = assets/btech-logo.png
============================================== */

/* ─── VARIABLES ─── */
:root {
  --c-ice:     #D4F0FB;
  --c-sky:     #88D6F9;
  --c-bright:  #04A9F5;
  --c-royal:   #004AAD;
  --c-deep:    #03577A;
  --c-abyss:   #072934;
  --white:     #fff;
  --bg:        #051A24;
  --bg-2:      #072934;
  --surface:   rgba(255,255,255,0.04);
  --line:      rgba(136,214,249,0.14);
  --text:      #dfeef8;
  --text-mute: #8aa7b8;
}

/* ─── RESET / BASE ─── */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: 'Manrope', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }

/* ─── LOGO ─── */
.logo-img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: drop-shadow(0 2px 12px rgba(4,169,245,0.25));
}

/* ─── BUTTONS ─── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 34px;
  background: linear-gradient(135deg, var(--c-royal), var(--c-bright));
  color: var(--white);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 10px 30px rgba(4,169,245,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 44px rgba(4,169,245,0.45);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 34px;
  color: var(--c-ice);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  border: 1px solid rgba(136,214,249,0.3);
  transition: background 0.2s, border-color 0.2s;
}
.btn-ghost:hover {
  background: rgba(136,214,249,0.08);
  border-color: var(--c-sky);
}
.btn-arrow { width: 16px; height: 16px; flex-shrink: 0; }

/* ─── SECTION HELPERS ─── */
section { position: relative; }
.wrap {
  max-width: 1280px;
  margin: 0 auto;
  padding: 140px 56px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.eyebrow-bar { width: 32px; height: 1px; background: var(--c-bright); }
.eyebrow-text {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 3.5px;
  color: var(--c-bright);
  text-transform: uppercase;
}
.section-h {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
  max-width: 700px;
}
.section-h em { font-style: normal; color: var(--c-sky); font-weight: 600; }
.section-lead {
  font-size: 16px;
  color: var(--text-mute);
  line-height: 1.8;
  max-width: 560px;
}

/* ─── NAV ─── */
nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 56px;
  height: 72px;
  background: rgba(5,26,36,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--white);
}
.nav-brand-text { display: flex; flex-direction: column; line-height: 1; }
.nav-brand-name {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 4px;
}
.nav-brand-tag {
  font-size: 9px;
  letter-spacing: 2.5px;
  color: var(--c-sky);
  text-transform: uppercase;
  margin-top: 3px;
  font-weight: 500;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}
.nav-menu a {
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  position: relative;
  transition: color 0.2s;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -6px;
  height: 1px;
  background: var(--c-bright);
  transition: right 0.3s;
}
.nav-menu a:hover,
.nav-menu a.current { color: var(--c-sky); }
.nav-menu a:hover::after,
.nav-menu a.current::after { right: 0; }
.nav-cta {
  padding: 10px 22px;
  background: linear-gradient(135deg, var(--c-royal), var(--c-bright));
  color: var(--white) !important;
  font-weight: 600;
  font-size: 12px !important;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 2px;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 8px 24px rgba(4,169,245,0.25);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 12px 32px rgba(4,169,245,0.4); }
.nav-cta::after { display: none; }
.nav-arrow {
  width: 56px;
  height: 56px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--c-sky);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  border-radius: 2px;
}
.nav-arrow svg { width: 20px; height: 20px; }
.nav-arrow:hover { background: rgba(4,169,245,0.1); border-color: var(--c-bright); color: var(--c-ice); }

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 56px 80px;
}
.hero-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 20% 40%, rgba(4,74,173,0.45) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 85% 70%, rgba(4,169,245,0.22) 0%, transparent 60%),
    linear-gradient(180deg, #051A24 0%, #072934 50%, #051A24 100%);
}
.hero-pattern {
  position: absolute;
  inset: 0;
  background-image: url('../img/btech-logo.png');
  background-size: 120px 120px;
  background-repeat: repeat;
  transform: rotate(-22deg) scale(1.4);
  transform-origin: center;
  opacity: 0.04;
  pointer-events: none;
}
.hero-pattern::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, var(--bg) 80%);
}
.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(136,214,249,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(136,214,249,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}
.hero-kicker { display: inline-flex; align-items: center; gap: 12px; margin-bottom: 32px; animation: reveal 0.7s ease both; }
.hero-kicker-bar { width: 40px; height: 1px; background: var(--c-sky); }
.hero-kicker-text {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--c-sky);
  text-transform: uppercase;
}
.hero-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(42px, 6.5vw, 88px);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -1px;
  margin-bottom: 28px;
  animation: reveal 0.7s ease 0.1s both;
}
.hero-title-line-2 {
  display: block;
  background: linear-gradient(90deg, var(--c-ice), var(--c-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-mute);
  line-height: 1.75;
  max-width: 500px;
  margin-bottom: 44px;
  animation: reveal 0.7s ease 0.2s both;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; animation: reveal 0.7s ease 0.3s both; }
.hero-meta { margin-top: 72px; display: flex; gap: 56px; align-items: flex-start; animation: reveal 0.7s ease 0.4s both; }
.hero-meta-item { border-left: 1px solid var(--line); padding-left: 20px; }
.hero-meta-num {
  font-family: 'Rajdhani', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--c-bright);
  line-height: 1;
  margin-bottom: 8px;
}
.hero-meta-label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-mute);
  font-weight: 500;
}
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1/1;
  max-width: 480px;
  margin: 0 auto;
  animation: reveal 0.9s ease 0.4s both;
}
.hero-logo-big {
  width: 70%;
  height: auto;
  position: relative;
  z-index: 2;
  filter: drop-shadow(0 30px 60px rgba(4,169,245,0.4));
  animation: float 6s ease-in-out infinite;
}
.hero-logo-glow {
  position: absolute;
  width: 60%;
  aspect-ratio: 1/1;
  background: radial-gradient(circle, rgba(4,169,245,0.4), transparent 65%);
  filter: blur(40px);
  z-index: 1;
}
.hero-ring {
  position: absolute;
  inset: 0;
  border: 1px dashed rgba(136,214,249,0.2);
  border-radius: 50%;
  animation: rotate 60s linear infinite;
  will-change: transform;
}
.hero-ring::before,
.hero-ring::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-bright);
  box-shadow: 0 0 12px var(--c-bright);
}
.hero-ring::before { top: -4px; left: 50%; transform: translateX(-50%); }
.hero-ring::after  { bottom: -4px; left: 50%; transform: translateX(-50%); }
.hero-circle-text {
  position: absolute;
  inset: -8%;
  animation: rotate 80s linear infinite;
  will-change: transform;
}
.hero-circle-text svg { width: 100%; height: 100%; overflow: visible; }
.hero-circle-text text {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 4px;
  fill: var(--c-sky);
  opacity: 0.55;
  text-transform: uppercase;
}

/* ─── BRANDS ─── */
.brands {
  background: var(--bg-2);
  padding: 60px 56px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.brands-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  flex-wrap: wrap;
}
.brands-label {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c-sky);
  flex-shrink: 0;
}
.brands-label .bar { width: 32px; height: 1px; background: var(--c-sky); }
.brands-row {
  display: flex;
  align-items: center;
  gap: 56px;
  flex-wrap: wrap;
  justify-content: center;
}
.brand {
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 20px;
  letter-spacing: 2px;
  color: var(--text-mute);
  text-transform: uppercase;
  transition: color 0.2s;
}
.brand:hover { color: var(--c-ice); }

/* ─── SERVICES ─── */
.services {
  background: var(--bg);
  border-top: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.services::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../img/btech-logo.png');
  background-size: 80px 80px;
  background-repeat: repeat;
  opacity: 0.025;
  transform: rotate(-15deg) scale(1.3);
  transform-origin: center;
  pointer-events: none;
}
.services > .wrap { position: relative; }
.services-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 60px;
  margin-bottom: 80px;
  flex-wrap: wrap;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.service-card {
  padding: 48px 42px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background 0.3s;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(4,169,245,0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.service-card:hover { background: rgba(4,169,245,0.03); }
.service-card:hover::before { opacity: 1; }
.service-num {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--c-bright);
  margin-bottom: 28px;
  position: relative;
}
.service-icon { width: 48px; height: 48px; margin-bottom: 28px; color: var(--c-sky); position: relative; }
.service-icon svg { width: 100%; height: 100%; }
.service-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 26px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
  line-height: 1.1;
  position: relative;
}
.service-description {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-mute);
  position: relative;
}

/* ─── STORE / CAROUSEL ─── */
.store {
  background: var(--bg);
  border-top: 1px solid var(--line);
  overflow: hidden;
  position: relative;
}
.store-header {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: 140px 56px 60px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 60px;
  flex-wrap: wrap;
}
.store-nav-btns { display: flex; gap: 10px; }
.carousel { position: relative; padding: 0 0 140px; }
.carousel-viewport { overflow: hidden; }
.carousel-track {
  display: flex;
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1);
  padding-left: calc((100vw - 1280px) / 2 + 56px);
  gap: 28px;
  will-change: transform;
}
.slide {
  flex: 0 0 560px;
  aspect-ratio: 4/3;
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #083545, #0a4560);
}
.slide::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    url('../img/btech-logo.png') no-repeat center / 40%,
    linear-gradient(to top, rgba(5,26,36,0.95) 0%, rgba(5,26,36,0.3) 50%, transparent 100%);
  opacity: 0.7;
}
.slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(5,26,36,0.95) 0%, transparent 50%);
}
.slide-inner {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.slide-num {
  font-family: 'Rajdhani', sans-serif;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--c-bright);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.slide-label {
  font-family: 'Rajdhani', sans-serif;
  font-size: 28px;
  font-weight: 600;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.slide-place { font-size: 13px; color: var(--text-mute); letter-spacing: 1px; }
.carousel-progress {
  max-width: 1280px;
  margin: 40px auto 0;
  padding: 0 56px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.carousel-counter {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  color: var(--c-sky);
  letter-spacing: 2px;
  font-weight: 500;
  min-width: 60px;
}
.carousel-bar { flex: 1; height: 1px; background: var(--line); position: relative; overflow: hidden; }
.carousel-bar-fill {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: 33.333%;
  background: var(--c-bright);
  transition: transform 0.6s cubic-bezier(0.4,0,0.2,1);
}

/* ─── LOCATION ─── */
.location {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  border-top: 1px solid var(--line);
}
.location-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
  margin-top: 80px;
  align-items: start;
}
.location-list { display: flex; flex-direction: column; gap: 2px; }
.unit {
  padding: 28px 30px;
  background: var(--surface);
  border: 1px solid var(--line);
  position: relative;
  transition: background 0.3s, border-color 0.3s;
  overflow: hidden;
}
.unit::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--c-bright);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s;
}
.unit:hover { background: rgba(4,169,245,0.06); border-color: rgba(4,169,245,0.3); }
.unit:hover::before { transform: scaleY(1); }
.unit-number {
  font-family: 'Rajdhani', sans-serif;
  font-size: 11px;
  letter-spacing: 2.5px;
  color: var(--c-bright);
  text-transform: uppercase;
  margin-bottom: 10px;
  font-weight: 500;
}
.unit-name {
  font-family: 'Rajdhani', sans-serif;
  font-size: 22px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.unit-address { font-size: 13px; color: var(--text-mute); }

/* ─── UNIT HOURS ACCORDION ─── */
.unit-hours {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}
.unit-hours summary {
  font-family: 'Rajdhani', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--c-bright);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  user-select: none;
  padding: 2px 0;
}
.unit-hours summary::-webkit-details-marker { display: none; }
.unit-hours summary::after {
  content: '';
  display: block;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--c-bright);
  border-bottom: 1.5px solid var(--c-bright);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.2s;
  margin-left: auto;
}
.unit-hours[open] summary::after {
  transform: rotate(-135deg) translateY(-2px);
}
.unit-hours .hours-table { margin-top: 14px; }

/* ─── HOURS TABLE ─── */
.hours-table { width: 100%; border-collapse: collapse; }
.hours-table tr { border-bottom: 1px solid var(--line); }
.hours-table tr:last-child { border-bottom: none; }
.hours-table td { padding: 9px 0; font-size: 13px; }
.hours-table td:first-child { color: var(--text-mute); }
.hours-table td:last-child {
  text-align: right;
  color: var(--white);
  font-weight: 500;
  font-family: 'Rajdhani', sans-serif;
  letter-spacing: 1px;
}
.hours-table td.closed {
  color: #ff6b6b;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 2px;
}

/* ─── LOCATION MAP ─── */
.location-map {
  position: relative;
  border: 1px solid var(--line);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-2);
  cursor: pointer;
}
.location-map iframe {
  width: 100%; height: 100%; border: none;
  filter: invert(90%) hue-rotate(180deg) saturate(0.8) brightness(0.9);
}
.location-map-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(4,74,173,0.3), rgba(3,87,122,0.4)),
    var(--bg-2);
  color: var(--c-sky);
  text-align: center;
  transition: opacity 0.3s;
}
.location-map.loaded .location-map-placeholder { display: none; }
.location-map-placeholder svg { width: 48px; height: 48px; margin-bottom: 16px; opacity: 0.6; }
.location-map-placeholder-text {
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.location-map-corner {
  position: absolute;
  top: 16px; right: 16px;
  background: rgba(5,26,36,0.9);
  backdrop-filter: blur(8px);
  padding: 10px 16px;
  border: 1px solid var(--line);
  font-family: 'Rajdhani', sans-serif;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--c-sky);
  z-index: 2;
}

/* ─── CTA STRIP ─── */
.cta-strip {
  background: linear-gradient(135deg, var(--c-abyss) 0%, var(--c-royal) 100%);
  padding: 120px 56px;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../img/btech-logo.png');
  background-size: 140px 140px;
  background-repeat: repeat;
  opacity: 0.05;
  transform: rotate(-20deg) scale(1.4);
  pointer-events: none;
}
.cta-strip::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(4,169,245,0.3), transparent);
}
.cta-strip-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.cta-strip-eyebrow {
  font-family: 'Rajdhani', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--c-sky);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.cta-strip h2 {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.5px;
  margin-bottom: 24px;
  color: var(--white);
}
.cta-strip p {
  font-size: 17px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 44px;
  line-height: 1.7;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

/* ─── FOOTER ─── */
footer {
  background: #031017;
  border-top: 1px solid var(--line);
  padding: 100px 56px 32px;
}
.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 60px;
  margin-bottom: 72px;
}
.footer-brand .nav-brand { margin-bottom: 24px; }
.footer-brand-desc { font-size: 14px; color: var(--text-mute); line-height: 1.8; max-width: 280px; }
.footer-col-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  color: var(--c-bright);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 14px; }
.footer-col ul li a { color: var(--text); text-decoration: none; font-size: 14px; transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--c-sky); }
.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
  text-decoration: none;
  color: var(--text);
}
.footer-contact-item:hover .footer-contact-value { color: var(--c-sky); }
.footer-contact-icon { width: 18px; height: 18px; color: var(--c-bright); flex-shrink: 0; margin-top: 3px; }
.footer-contact-icon svg { width: 100%; height: 100%; }
.footer-contact-label { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--text-mute); margin-bottom: 2px; }
.footer-contact-value { font-family: 'Rajdhani', sans-serif; font-size: 15px; font-weight: 500; color: var(--white); transition: color 0.2s; }
.footer-bottom {
  max-width: 1280px;
  margin: 0 auto;
  padding-top: 32px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: var(--text-mute);
}

/* ─── WHATSAPP FAB ─── */
.whatsapp-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 900;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(37,211,102,0.4);
  transition: transform 0.2s;
}
.whatsapp-fab::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid rgba(37,211,102,0.4);
  animation: fabPulse 2s ease-in-out infinite;
}
.whatsapp-fab:hover { transform: scale(1.08); }
.whatsapp-fab svg { width: 28px; height: 28px; fill: white; position: relative; z-index: 1; }

/* ─── ABOUT PAGE ─── */
.page-header {
  position: relative;
  overflow: hidden;
  padding: 160px 56px 80px;
  border-bottom: 1px solid var(--line);
}
.page-header-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 25% 40%, rgba(4,74,173,0.45) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 85% 70%, rgba(4,169,245,0.20) 0%, transparent 60%),
    linear-gradient(180deg, #051A24 0%, #072934 100%);
}
.page-header-pattern {
  position: absolute;
  inset: 0;
  background-image: url('../img/btech-logo.png');
  background-size: 120px 120px;
  background-repeat: repeat;
  transform: rotate(-22deg) scale(1.4);
  transform-origin: center;
  opacity: 0.04;
  pointer-events: none;
}
.page-header-inner { position: relative; z-index: 2; max-width: 1280px; margin: 0 auto; }
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-mute);
  text-decoration: none;
  margin-bottom: 32px;
  transition: color 0.2s;
}
.breadcrumb:hover { color: var(--c-sky); }
.breadcrumb svg { width: 14px; height: 14px; stroke: currentColor; }
.page-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -1px;
  margin-bottom: 20px;
  animation: reveal 0.7s ease 0.1s both;
}
.page-title em {
  font-style: normal;
  background: linear-gradient(90deg, var(--c-ice), var(--c-bright));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}
.page-lead { font-size: 17px; color: var(--text-mute); line-height: 1.75; max-width: 600px; animation: reveal 0.7s ease 0.2s both; }

.about-section { background: linear-gradient(180deg, var(--bg) 0%, #072029 100%); }
.about-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 100px; align-items: center; }
.about-visual { position: relative; aspect-ratio: 4/5; }
.about-image-frame {
  position: absolute;
  inset: 0;
  border-radius: 4px;
  overflow: hidden;
  background:
    linear-gradient(160deg, rgba(4,74,173,0.3), rgba(3,87,122,0.5)),
    url('../img/btech-logo.png');
  background-size: cover, 80px 80px;
  background-position: center, top left;
  background-repeat: no-repeat, repeat;
  background-blend-mode: normal, soft-light;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-image-frame::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, rgba(5,26,36,0.95), transparent 40%),
    linear-gradient(135deg, transparent 50%, rgba(4,169,245,0.08));
}
.about-image-placeholder {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}
.about-image-placeholder img { width: 90px; opacity: 0.5; }
.about-visual::before,
.about-visual::after {
  content: '';
  position: absolute;
  width: 60px;
  height: 60px;
  border: 1px solid var(--c-bright);
  z-index: 2;
}
.about-visual::before { top: -14px; left: -14px; border-right: none; border-bottom: none; }
.about-visual::after  { bottom: -14px; right: -14px; border-left: none; border-top: none; }
.about-badge-year {
  position: absolute;
  right: -30px;
  bottom: 60px;
  background: var(--c-royal);
  padding: 22px 26px;
  z-index: 3;
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
.about-badge-year .n { font-family: 'Rajdhani', sans-serif; font-size: 42px; font-weight: 700; color: var(--white); line-height: 0.9; }
.about-badge-year .t { font-size: 10px; letter-spacing: 2.5px; text-transform: uppercase; color: rgba(255,255,255,0.7); margin-top: 6px; font-weight: 500; }
.about-content p { font-size: 16px; line-height: 1.9; color: var(--text); margin-bottom: 20px; }
.about-content p strong { color: var(--c-sky); font-weight: 600; }
.about-quote {
  margin-top: 36px;
  padding: 24px 28px;
  border-left: 2px solid var(--c-bright);
  background: linear-gradient(90deg, rgba(4,169,245,0.08), transparent);
  font-family: 'Rajdhani', sans-serif;
  font-size: 18px;
  font-weight: 500;
  color: var(--c-ice);
  font-style: italic;
  line-height: 1.5;
}
.about-quote cite { display: block; margin-top: 12px; font-style: normal; font-size: 11px; letter-spacing: 2px; text-transform: uppercase; color: var(--c-sky); font-weight: 500; }

/* ─── ANIMATIONS ─── */
@keyframes fabPulse {
  0%   { transform: scale(1);   opacity: 1; }
  100% { transform: scale(1.3); opacity: 0; }
}
@keyframes reveal {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-14px); }
}
@keyframes rotate {
  to { transform: rotate(360deg); }
}
.r { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.r.in { opacity: 1; transform: translateY(0); }

/* ─── REDUCED MOTION ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero-ring, .hero-circle-text, .hero-logo-big { animation: none; }
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1400px) {
  .carousel-track { padding-left: 56px; }
}

@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 60px; }
  .hero-visual { max-width: 380px; }
  .about-grid, .location-grid { grid-template-columns: 1fr; gap: 60px; }
  .services-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .slide { flex: 0 0 85vw; }
  .carousel-track { padding-left: 24px; }
}

@media (max-width: 700px) {
  nav { padding: 0 24px; }
  .nav-menu { display: none; }
  .hero { padding: 100px 24px 60px; }
  .page-header { padding: 120px 24px 60px; }
  .wrap { padding: 80px 24px; }
  .store-header { padding: 80px 24px 40px; }
  .brands { padding: 50px 24px; }
  .cta-strip { padding: 80px 24px; }
  footer { padding: 60px 24px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-meta { gap: 30px; flex-wrap: wrap; margin-top: 52px; }
  .hero-actions { width: 100%; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }
  .about-badge-year { right: 20px; bottom: 20px; }
  .slide { flex: 0 0 calc(100vw - 48px); }
  .footer-bottom { flex-direction: column; text-align: center; }
  .carousel-progress { padding: 0 24px; }
}