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

:root {
  --black:         #080808;
  --dark:          #0f0f0f;
  --dark-mid:      #1a1a1a;
  --white:         #ffffff;
  --off-white:     #f7f7f7;
  --gray-light:    #f2f2f2;
  --gray-border:   #e5e5e5;
  --gray-mid:      #999999;
  --text:          #1a1a1a;
  --text-muted:    #666666;
  --accent:        #2563eb;
  --accent-light:  #3b82f6;
  --accent-glow:   rgba(37, 99, 235, 0.18);
  --ease:          cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring:   cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:      cubic-bezier(0, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* =========================================================
   SCROLL REVEAL
   ========================================================= */
.reveal-up,
.reveal-left,
.reveal-right {
  opacity: 0;
  transition: opacity 0.75s var(--ease-out),
              transform 0.75s var(--ease-out);
  transition-delay: var(--delay, 0s);
}

.reveal-up    { transform: translateY(55px); }
.reveal-left  { transform: translateX(-65px); }
.reveal-right { transform: translateX(65px); }

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed {
  opacity: 1;
  transform: none;
}

/* =========================================================
   NAVBAR
   ========================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 2.5rem;
  transition: background 0.45s var(--ease),
              box-shadow 0.45s var(--ease),
              padding 0.45s var(--ease);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--gray-border);
  padding: 1rem 2.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  z-index: 1001;
}

.nav-logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  transition: filter 0.45s var(--ease);
}

.navbar.scrolled .nav-logo { filter: none; }

.nav-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  transition: color 0.45s var(--ease);
}

.navbar.scrolled .nav-name { color: var(--text); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  position: relative;
  transition: color 0.3s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -5px; left: 0;
  width: 0;
  height: 1.5px;
  background: var(--accent);
  transition: width 0.35s var(--ease);
}

.nav-link:hover       { color: var(--white); }
.nav-link:hover::after { width: 100%; }
.nav-link.active      { color: var(--white); }
.nav-link.active::after { width: 100%; }

.navbar.scrolled .nav-link         { color: var(--text-muted); }
.navbar.scrolled .nav-link:hover   { color: var(--text); }
.navbar.scrolled .nav-link.active  { color: var(--accent); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 6px;
  cursor: pointer;
  padding: 6px 8px;
  z-index: 1001;
}

.navbar.scrolled .hamburger { border-color: rgba(0,0,0,0.1); }

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.35s var(--ease),
              opacity 0.35s var(--ease),
              background 0.45s var(--ease);
}

.navbar.scrolled .hamburger span { background: var(--text); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  /* Photo background from WEB SAMPLE 1 */
  background: url('LagoPage.png') center center / cover no-repeat;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Dark overlay — dims the photo so text is readable */
.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(5, 5, 15, 0.72) 0%,
    rgba(5, 5, 15, 0.80) 100%
  );
  z-index: 0;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  animation: gridScroll 22s linear infinite;
}

@keyframes gridScroll {
  0%   { transform: translateY(0); }
  100% { transform: translateY(64px); }
}

.hero-columns { position: absolute; inset: 0; z-index: 1; }

.col-shape {
  position: absolute;
  bottom: 0;
  width: 100px;
  background: linear-gradient(to top, rgba(255,255,255,0.1) 0%, transparent 85%);
  border-left:  1px solid rgba(255,255,255,0.1);
  border-right: 1px solid rgba(255,255,255,0.1);
  transform-origin: bottom center;
  opacity: 0;
}

.c1 { left:  4%;   height: 60vh; animation: colRise 1.4s 0.1s var(--ease-out) forwards; }
.c2 { left:  20%;  height: 80vh; animation: colRise 1.4s 0.25s var(--ease-out) forwards; }
.c3 { right: 20%;  height: 75vh; animation: colRise 1.4s 0.15s var(--ease-out) forwards; }
.c4 { right: 4%;   height: 55vh; animation: colRise 1.4s 0.35s var(--ease-out) forwards; }

@keyframes colRise {
  from { opacity: 0; transform: scaleY(0.2); }
  to   { opacity: 1; transform: scaleY(1); }
}

.hero-glow {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background: radial-gradient(circle at 50% 50%, rgba(37,99,235,0.12) 0%, transparent 55%);
  animation: glowPulse 5s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.7; }
  50%       { opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo {
  width: 80px;
  height: 80px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  animation: fadeSlideDown 1s 0.1s var(--ease) both;
  margin-bottom: 0.5rem;
}

.hero-brand-name {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
  animation: fadeSlideDown 1s 0.2s var(--ease) both;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(5.5rem, 14vw, 13rem);
  font-weight: 800;
  line-height: 0.88;
  color: var(--white);
  letter-spacing: -0.02em;
  display: flex;
  margin-bottom: 1.75rem;
  overflow: hidden;
}

.hero-title .letter {
  display: inline-block;
  animation: letterFall 0.65s var(--ease-spring) both;
}

@keyframes letterFall {
  from { opacity: 0; transform: translateY(-70px) rotateX(80deg); }
  to   { opacity: 1; transform: none; }
}

.hero-subtitle {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(0.7rem, 1.3vw, 0.9rem);
  font-weight: 300;
  letter-spacing: 0.38em;
  color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase;
  animation: fadeSlideUp 1s 1.1s var(--ease) both;
  margin-bottom: 3rem;
}

.hero-cta {
  display: flex;
  gap: 1.25rem;
  animation: fadeSlideUp 1s 1.3s var(--ease) both;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 2.5rem;
  background: var(--white);
  color: var(--black);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 2px solid var(--white);
  transition: background 0.3s, color 0.3s,
              transform 0.25s var(--ease-spring),
              box-shadow 0.3s;
}

.btn-primary:hover {
  background: transparent;
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255,255,255,0.1);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 2.5rem;
  background: transparent;
  color: rgba(255, 255, 255, 0.65);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: color 0.3s, border-color 0.3s,
              transform 0.25s var(--ease-spring);
}

.btn-ghost:hover {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
  transform: translateY(-3px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  padding: 0.875rem 2.5rem;
  background: transparent;
  color: var(--text);
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 2px solid var(--text);
  transition: background 0.3s, color 0.3s,
              transform 0.25s var(--ease-spring);
  margin-top: 0.5rem;
}

.btn-outline:hover {
  background: var(--text);
  color: var(--white);
  transform: translateY(-3px);
}

/* =========================================================
   SCROLL INDICATOR
   ========================================================= */
.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: fadeSlideUp 1s 1.6s var(--ease) both;
}

.scroll-mouse {
  width: 26px;
  height: 44px;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  border-radius: 13px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}

.scroll-wheel {
  width: 3px;
  height: 8px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 2px;
  animation: wheelScroll 1.8s ease-in-out infinite;
}

@keyframes wheelScroll {
  0%, 100% { transform: translateY(0);    opacity: 1; }
  60%       { transform: translateY(12px); opacity: 0.15; }
}

/* =========================================================
   SERVICES / CAPABILITIES
   ========================================================= */
.services {
  padding: 9rem 0;
  background: var(--white);
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.eyebrow.light { color: rgba(255, 255, 255, 0.5); }

.section-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(2.75rem, 5vw, 4.25rem);
  font-weight: 800;
  line-height: 1;
  color: var(--text);
  margin-bottom: 1.25rem;
}

.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.75;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.card {
  background: var(--gray-light);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--gray-border);
  transition: transform 0.45s var(--ease-spring),
              box-shadow 0.45s var(--ease);
  cursor: default;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 28px 64px rgba(0, 0, 0, 0.1);
}

.card-img-wrap {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem;
  background: var(--gray-light);
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.55s var(--ease);
}

.card:hover .card-img { transform: scale(1.06); }

.card-body {
  padding: 1.75rem 1.75rem 2rem;
  background: var(--white);
}

.card-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tag {
  display: inline-block;
  padding: 0.28rem 0.8rem;
  background: rgba(37, 99, 235, 0.08);
  color: var(--accent);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: background 0.3s;
}

.card:hover .tag { background: rgba(37, 99, 235, 0.15); }

/* =========================================================
   OUTPUT SECTION
   ========================================================= */
.output-section {
  padding: 9rem 0;
  background: #f0f2fa;
  position: relative;
  overflow: hidden;
}

.output-top-line {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(37, 99, 235, 0.35) 50%,
    transparent 100%);
}

.output-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}

.output-text { position: relative; }

.output-heading {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(2.5rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--text);
  margin: 1rem 0 1.25rem;
}

.output-sub {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 2.75rem;
  max-width: 440px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
}

.feature-icon {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(37, 99, 235, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.feature-icon svg { width: 16px; height: 16px; }

.feature-text strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.feature-text p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ---- Carousel wrapper ---- */
.output-preview { position: relative; }

.calc-carousel { position: relative; overflow: hidden; }

.calc-slide { display: none; position: relative; z-index: 1; }

.calc-slide.active {
  display: block;
  animation: calcSlideIn 0.45s var(--ease-out) both;
}

.calc-slide.exiting {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  animation: calcSlideOut 0.45s var(--ease-out) both;
}

@keyframes calcSlideIn  { from { transform: translateX(100%); } to { transform: none; } }
@keyframes calcSlideOut { from { transform: none; } to { transform: translateX(-100%); } }

/* Carousel dots + label */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.25rem;
  padding: 0 0.25rem;
}

.carousel-dots { display: flex; gap: 0.5rem; align-items: center; }

/* Dot: larger size + transparent hit-area via padding */
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background: var(--gray-border);
  cursor: pointer;
  padding: 0;
  /* Enlarged tap target without visual change */
  position: relative;
  transition: background 0.3s, transform 0.3s var(--ease-spring);
}

.dot::before {
  content: '';
  position: absolute;
  inset: -14px;
}

.dot:hover   { background: var(--gray-mid); }

.dot.active {
  background: var(--accent);
  transform: scale(1.25);
}

.carousel-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---- Calculation Sheet ---- */
.calc-sheet {
  background: var(--white);
  border: 1px solid #e2e4ef;
  border-top: 3px solid var(--accent);
  border-radius: 16px;
  overflow: hidden;
  font-size: 0.82rem;
  box-shadow:
    0 4px 12px rgba(37, 99, 235, 0.07),
    0 24px 64px rgba(0, 0, 0, 0.1);
}

.calc-header {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.8rem 1.4rem;
  border-bottom: 1px solid #ebebf5;
  background: #f8f8fd;
}

.calc-chrome {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
}

.calc-chrome span {
  display: block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.calc-chrome span:nth-child(1) { background: #ff5f57; }
.calc-chrome span:nth-child(2) { background: #febc2e; }
.calc-chrome span:nth-child(3) { background: #28c840; }

.calc-title-text {
  flex: 1;
  text-align: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.calc-mark {
  font-family: 'Inter', sans-serif;
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: rgba(37, 99, 235, 0.1);
  padding: 0.2rem 0.55rem;
  border-radius: 5px;
}

.calc-code-ref {
  padding: 0.5rem 1.4rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.67rem;
  color: #b0b0c0;
  letter-spacing: 0.07em;
  border-bottom: 1px solid #f0f0f8;
  background: #fbfbfe;
}

.calc-block {
  padding: 0.95rem 1.4rem 0.95rem 1.1rem;
  border-bottom: 1px solid #f0f0f8;
  border-left: 3px solid var(--accent);
  font-family: 'Courier New', 'Consolas', monospace;
}

.calc-block-title {
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.7rem;
  text-transform: uppercase;
}

.calc-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.26rem 0;
  color: var(--text-muted);
  font-size: 0.79rem;
  gap: 1rem;
}

.calc-val {
  color: var(--text);
  text-align: right;
  min-width: 100px;
  font-weight: 500;
}

.calc-val.accent {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.84rem;
}

.calc-val em {
  font-style: normal;
  color: #c0c0cc;
  margin-left: 0.25em;
  font-size: 0.7em;
}

.calc-check {
  font-family: 'Inter', sans-serif;
  color: #16a34a;
  font-size: 0.77rem;
  font-weight: 600;
}

.calc-footer-bar {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(90deg, rgba(22,163,74,0.07), rgba(22,163,74,0.03));
  border-top: 1px solid rgba(22, 163, 74, 0.15);
  color: #16a34a;
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  padding: 0.875rem 1.4rem;
  text-align: center;
  font-weight: 600;
}

/* =========================================================
   ABOUT + CONTACT — shared sticky split layout
   ========================================================= */
.ac-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.ac-left {
  position: sticky;
  top: 0;
  height: 100vh;
  align-self: start;
  overflow: hidden;
  background: var(--dark);
}

.about-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.8s var(--ease);
}

.ac-left:hover .about-bg-img { transform: scale(1.04); }

.ac-right { display: flex; flex-direction: column; }

.ac-panel {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--off-white);
  padding: 8rem 5.5rem;
  border-top: 1px solid var(--gray-border);
}

.ac-panel--contact { background: var(--white); }

.about-content { max-width: 520px; }

.about-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: clamp(3.5rem, 6vw, 5.5rem);
  font-weight: 800;
  color: var(--text);
  line-height: 0.95;
  margin-bottom: 2rem;
  margin-top: 1rem;
}

.about-text {
  font-size: 0.925rem;
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 1.25rem;
}

/* Contact list */
.contact-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 0.5rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color 0.3s var(--ease);
}

.contact-link:hover { color: var(--text); }

.contact-link-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  flex-shrink: 0;
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
              border-color 0.3s var(--ease);
}

.contact-link:hover .contact-link-icon {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--black);
  padding: 2.75rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.footer-logo {
  width: 24px;
  height: 24px;
  object-fit: contain;
  filter: brightness(0) invert(0.45);
}

.footer-copy { font-size: 0.78rem; color: rgba(255, 255, 255, 0.25); }

.footer-links { display: flex; gap: 1.75rem; }

.footer-links a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.32);
  transition: color 0.3s;
}

.footer-links a:hover { color: rgba(255, 255, 255, 0.72); }

/* =========================================================
   KEYFRAMES
   ========================================================= */
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-22px); }
  to   { opacity: 1; transform: none; }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: none; }
}

/* =========================================================
   RESPONSIVE — 1100px
   ========================================================= */
@media (max-width: 1100px) {
  .output-grid { grid-template-columns: 1fr; gap: 3.5rem; }
  .output-sub  { max-width: none; }
}

/* =========================================================
   RESPONSIVE — 1024px
   ========================================================= */
@media (max-width: 1024px) {
  .ac-wrapper          { grid-template-columns: 1fr; }
  .ac-left             { position: relative; height: 55vh; min-height: 400px; }
  .ac-panel            { min-height: auto; padding: 6rem 3rem; }
  .about-content       { max-width: none; }
}

/* =========================================================
   RESPONSIVE — 900px
   ========================================================= */
@media (max-width: 900px) {
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .col-shape  { width: 60px; }
  .c2, .c3   { display: none; }
}

/* =========================================================
   RESPONSIVE — 768px (mobile)
   ========================================================= */
@media (max-width: 768px) {
  .navbar          { padding: 1.1rem 1.5rem; }
  .navbar.scrolled { padding: 0.8rem 1.5rem; }

  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(8, 8, 8, 0.97);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease);
  }

  .nav-links.open {
    opacity: 1;
    pointer-events: all;
  }

  .nav-link {
    font-size: 1.6rem;
    color: rgba(255, 255, 255, 0.75);
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 700;
    letter-spacing: 0.12em;
  }

  .hamburger { display: flex; }

  .cards-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }

  .hero-cta { flex-direction: column; align-items: center; }
  .hero-cta .btn-primary,
  .hero-cta .btn-ghost { width: 240px; justify-content: center; }

  .ac-panel { padding: 4rem 2rem; }

  .footer-content { flex-direction: column; text-align: center; gap: 1.25rem; }
  .footer-links   { justify-content: center; flex-wrap: wrap; }
}

/* =========================================================
   RESPONSIVE — 480px
   ========================================================= */
@media (max-width: 480px) {
  .hero-title    { font-size: clamp(1.8rem, 13vw, 4.5rem); }
  .hero-subtitle { font-size: clamp(0.55rem, 2.5vw, 0.85rem); letter-spacing: 0.18em; }
  .ac-panel { padding: 3rem 1.5rem; }
  .about-title { font-size: 3rem; }
}

/* =========================================================
   RESPONSIVE — 360px (very small phones)
   ========================================================= */
@media (max-width: 360px) {
  .hero-subtitle { letter-spacing: 0.12em; }
}