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

:root {
  --black: #0a0a0a;
  --charcoal: #2c2b29;
  --white: #ffffff;
  --off-white: #f8f7f5;
  --gray-100: #f0efed;
  --gray-300: #d1cfc9;
  --gray-500: #8a8880;
  --gray-700: #4a4845;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --font-body: 'Inter', sans-serif;
  --font-display: 'Playfair Display', serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--white);
  color: var(--black);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ─── UTILITY ─────────────────────────────────────────────── */
.eyebrow {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 20px;
}

/* ─── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
  white-space: nowrap;
}
.btn-dark {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}
.btn-dark:hover { background: var(--charcoal); border-color: var(--charcoal); }

.btn-outline {
  background: transparent;
  color: var(--black);
  border-color: var(--gray-300);
}
.btn-outline:hover { border-color: var(--black); }

.btn-white {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
}
.btn-white:hover { background: var(--gray-100); }

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.35);
}
.btn-outline-white:hover { border-color: rgba(255,255,255,0.8); }

/* ─── NAVBAR ──────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--gray-100);
  transition: box-shadow var(--transition);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-display);
  font-size: 23px;
  font-weight: 500;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 12.5px;
  font-weight: 400;
  color: var(--gray-700);
  text-decoration: none;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--black); }
.nav-links .nav-cta {
  background: var(--black);
  color: var(--white) !important;
  padding: 9px 20px;
  border-radius: 100px;
  font-weight: 500;
}
.nav-links .nav-cta:hover { background: var(--charcoal); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--black);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--white);
  border-top: 1px solid var(--gray-100);
  padding: 8px 0 16px;
}
.mobile-menu a {
  padding: 14px 24px;
  font-size: 15px;
  color: var(--black);
  text-decoration: none;
  border-bottom: 1px solid var(--gray-100);
}
.mobile-menu.open { display: flex; }

/* ─── HERO ────────────────────────────────────────────────── */
.hero {
  padding-top: 64px;
  min-height: 100svh;
  background: var(--white);
  display: flex;
  flex-direction: column;
  position: relative;
}
.hero-inner {
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 40px 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.hero-text { max-width: 500px; }

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--black);
  margin-bottom: 24px;
}
.hero-headline em { font-style: italic; color: var(--gray-500); }

.hero-sub {
  font-size: 16px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-700);
  margin-bottom: 40px;
  max-width: 420px;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-image-wrap { position: relative; }
.hero-image-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--gray-100);
  box-shadow: 0 32px 72px rgba(0,0,0,0.1);
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.9s cubic-bezier(0.4,0,0.2,1);
}
.hero-image-frame:hover .hero-img { transform: scale(1.03); }

.hero-scroll-hint {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 40px 32px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero-scroll-hint span {
  font-size: 9.5px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray-500);
}
.scroll-line {
  width: 44px;
  height: 1px;
  background: var(--gray-300);
}

/* ─── FEATURES ────────────────────────────────────────────── */
.features {
  padding: 128px 40px;
  background: var(--white);
}
.features-inner { max-width: 1200px; margin: 0 auto; }

.section-header {
  margin-bottom: 80px;
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.6vw, 48px);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--black);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  background: var(--off-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform var(--transition), box-shadow var(--transition);
  overflow: hidden;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.07);
}
.card-dark {
  background: var(--charcoal);
  color: var(--white);
}
.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(0,0,0,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--gray-700);
}
.card-dark .card-icon {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.7);
}

.card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.card p {
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.75;
  color: var(--gray-700);
}
.card-dark p { color: rgba(255,255,255,0.55); }

.card-image-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16/9;
  margin-top: 10px;
}
.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.card:not(.card-dark) .card-img {
  filter: contrast(1.06) brightness(1.01);
}
.card:hover .card-img { transform: scale(1.04); }

/* ─── TIMELINE UI ─────────────────────────────────────────── */
.timeline-ui {
  margin-top: 10px;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 24px 20px 20px;
  display: flex;
  flex-direction: column;
  position: relative;
  border: 1px solid var(--gray-100);
}

.tl-track {
  position: absolute;
  left: 23px;
  top: 32px;
  bottom: 32px;
  width: 1px;
  background: var(--gray-100);
}

.tl-step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 0;
  position: relative;
  z-index: 1;
}

.tl-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gray-300);
  flex-shrink: 0;
  margin-left: 5px;
  transition: background var(--transition);
}

.tl-step.done .tl-dot {
  background: var(--black);
}

.tl-step.active .tl-dot {
  background: var(--black);
  box-shadow: 0 0 0 2.5px rgba(10,10,10,0.1);
}

.tl-label {
  font-size: 11.5px;
  font-weight: 400;
  color: var(--black);
  letter-spacing: 0.005em;
  flex: 1;
  line-height: 1;
}
.tl-step:not(.done):not(.active) .tl-dot {
  width: 3px;
  height: 3px;
  background: var(--gray-300);
  opacity: 0.5;
}
.tl-step:not(.done):not(.active) .tl-label {
  color: var(--gray-300);
  font-weight: 300;
}

/* ─── CTA SECTION ─────────────────────────────────────────── */
.cta-section {
  background: var(--black);
  padding: 80px 40px;
  text-align: center;
}
.cta-inner { max-width: 600px; margin: 0 auto; }
.cta-section h2 {
  font-family: var(--font-display);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--white);
  margin-bottom: 18px;
}
.cta-section p {
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
  color: rgba(255,255,255,0.45);
  margin-bottom: 40px;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ─── FOOTER ──────────────────────────────────────────────── */
.footer {
  background: var(--black);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 36px 40px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--white);
  letter-spacing: -0.02em;
}
.footer-links {
  display: flex;
  gap: 28px;
}
.footer-links a {
  font-size: 12.5px;
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-links a:hover { color: rgba(255,255,255,0.8); }

/* ─── FADE-IN ANIMATION ───────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .cards-grid .card:last-child { grid-column: span 2; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .hero-inner {
    grid-template-columns: 1fr;
    padding: 56px 24px 44px;
    gap: 36px;
  }
  .hero-text { max-width: 100%; }
  .hero-sub { max-width: 100%; }
  .hero-scroll-hint { padding: 0 24px 28px; }

  .features { padding: 80px 24px; }
  .section-header { margin-bottom: 56px; }
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .cards-grid .card:last-child { grid-column: span 1; }

  .cta-section { padding: 64px 24px; }

  .footer { padding: 28px 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }

  .nav-inner { padding: 0 24px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 280px; justify-content: center; }
}