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

:root {
  --bg: #fafbfc;
  --bg-alt: #f0f4f8;
  --surface: #ffffff;
  --text: #1a2332;
  --text-muted: #5a6a7e;
  --accent: #0d6e6e;
  --accent-dark: #0a5555;
  --accent-soft: #e6f3f3;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(13, 110, 110, 0.08);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.container.narrow {
  max-width: 720px;
}

.section {
  padding: 88px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--text);
}

.section-intro {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 48px;
}

.lead {
  font-size: 1.25rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--accent);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
  background: var(--accent);
  color: white;
}

.btn-sm:hover {
  background: var(--accent-dark);
}

.btn-primary {
  padding: 14px 28px;
  font-size: 1rem;
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 14px rgba(13, 110, 110, 0.25);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(13, 110, 110, 0.3);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.1rem;
}

/* ===== Hero ===== */
.hero {
  padding: 96px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, #f0f7f7 0%, var(--bg) 100%);
}

.eyebrow {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 4.2rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  color: var(--text);
}

.hero-title em {
  font-style: italic;
  color: var(--accent);
}

.hero-title sup {
  font-size: 0.45em;
  vertical-align: super;
  font-style: normal;
  color: var(--text-muted);
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 32px;
  line-height: 1.65;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.hero-tags span {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow);
}

.hero-cta {
  margin-top: 8px;
}

/* ===== Pillars ===== */
.pillars {
  padding: 0 0 64px;
  margin-top: -24px;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pillar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 22px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

.pillar:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(13, 110, 110, 0.12);
}

.pillar-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.pillar h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.pillar p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== Sauce ===== */
.sauce {
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.sauce h2 {
  margin-bottom: 20px;
}

/* ===== Philosophy ===== */
.philosophy-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: center;
}

.philosophy-text p {
  margin-bottom: 18px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.philosophy-text p:last-of-type {
  margin-bottom: 0;
}

.trademark {
  font-size: 0.9rem !important;
  color: var(--text-muted) !important;
  font-style: italic;
  margin-top: 28px !important;
}

.visual-card {
  background: var(--accent);
  color: white;
  border-radius: 16px;
  padding: 48px 36px;
  text-align: center;
  box-shadow: 0 12px 40px rgba(13, 110, 110, 0.25);
}

.visual-quote {
  display: block;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
}

.visual-card p {
  opacity: 0.9;
  font-size: 1.05rem;
}

/* ===== Cards ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-2px);
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 14px;
  color: var(--text);
}

.card p {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

/* ===== Difference ===== */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.diff-item {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--border);
}

.diff-num {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.diff-item h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.diff-item p {
  color: var(--text-muted);
  font-size: 0.98rem;
  line-height: 1.65;
}

.easy-load {
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 20px 28px;
  font-size: 1.05rem;
  color: var(--text);
  text-align: center;
}

.easy-load strong {
  color: var(--accent);
}

/* ===== Process ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step {
  text-align: center;
  padding: 8px;
}

.step-num {
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  margin: 0 auto 20px;
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.step p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== CTA ===== */
.cta {
  padding: 100px 0;
  background: linear-gradient(160deg, #0d6e6e 0%, #0a4a4a 100%);
  color: white;
  text-align: center;
}

.cta h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 20px;
  color: white;
}

.cta p {
  font-size: 1.15rem;
  opacity: 0.92;
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.cta .btn-primary {
  background: white;
  color: var(--accent);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.cta .btn-primary:hover {
  background: #f0f7f7;
  transform: translateY(-2px);
}

.cta-note {
  margin-top: 20px !important;
  font-size: 0.95rem !important;
  opacity: 0.75 !important;
}

/* ===== Footer ===== */
.site-footer {
  background: #0f1a1a;
  color: #a0b0b0;
  padding: 48px 0;
}

.footer-inner {
  text-align: center;
}

.footer-brand .logo {
  color: white;
  font-size: 1.5rem;
}

.footer-brand p {
  margin-top: 4px;
  font-size: 0.9rem;
}

.footer-tag {
  margin: 20px 0 12px;
  font-style: italic;
  font-size: 0.95rem;
}

.footer-copy {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .diff-grid {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
  }

  .nav a:not(.btn) {
    display: none;
  }
}

@media (max-width: 560px) {
  .pillars-grid {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 72px 0 56px;
  }

  .section {
    padding: 64px 0;
  }
}