/* ===================================================
   FLATMARKETING — Main Stylesheet
   Minimalist Monochromatic | Black, White, Gray
   =================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;400;500;700&family=Space+Grotesk:wght@300;400;500;700&display=swap');

/* ─── CSS Variables ─── */
:root {
  --black:       #000000;
  --white:       #ffffff;
  --gray-100:    #f7f7f7;
  --gray-200:    #eeeeee;
  --gray-300:    #e0e0e0;
  --gray-400:    #bdbdbd;
  --gray-500:    #999999;
  --gray-600:    #666666;
  --gray-700:    #444444;
  --gray-800:    #222222;
  --gray-900:    #111111;

  --font-head:   'Space Grotesk', sans-serif;
  --font-body:   'DM Sans', sans-serif;

  --container:   1280px;
  --gap:         2rem;
  --radius:      0px;

  --transition:  0.3s ease;
  --nav-h:       72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--black);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

/* ── Utility ─── */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 2rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ─── Header / Navigation ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-300);
  height: var(--nav-h);
}

.header-inner {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.site-logo {
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1;
  text-decoration: none;
}

.logo-name {
  font-family: var(--font-head);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: -0.02em;
  line-height: 1;
}

.logo-name span {
  font-weight: 300;
}

.logo-tagline {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--gray-500);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0;
}

.site-nav a {
  font-family: var(--font-head);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray-600);
  padding: 0.5rem 1.2rem;
  transition: color var(--transition);
  position: relative;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--black);
}

.site-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 1.2rem;
  right: 1.2rem;
  height: 2px;
  background: var(--black);
}

.nav-divider {
  width: 1px;
  height: 1rem;
  background: var(--gray-300);
}

/* ─── Hamburger (mobile) ─── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--black);
  transition: transform var(--transition), opacity var(--transition);
}

/* ── Hero Section ─── */
.hero {
  padding: 7rem 2rem 6rem;
  max-width: var(--container);
  margin-inline: auto;
  border-bottom: 1px solid var(--gray-200);
}

.hero-eyebrow {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--black);
  max-width: 720px;
  margin-bottom: 2rem;
}

.hero-title em {
  font-style: normal;
  font-weight: 300;
  color: var(--gray-500);
}

.hero-body {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: var(--gray-600);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 3rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--black);
  padding: 1rem 2.2rem;
  border: 1px solid var(--black);
  transition: background var(--transition), color var(--transition);
}

.hero-cta:hover {
  background: var(--white);
  color: var(--black);
}

/* ─── Section Base ── */
.section {
  padding: 5rem 2rem;
  max-width: var(--container);
  margin-inline: auto;
}

.section-label {
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--black);
  margin-bottom: 1rem;
}

.section-title em {
  font-style: normal;
  font-weight: 300;
  color: var(--gray-500);
}

.section-lead {
  font-size: 1.05rem;
  color: var(--gray-600);
  max-width: 600px;
  line-height: 1.8;
  margin-bottom: 3.5rem;
}

/* ── Brands Grid ─── */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--gray-200);
  border: 1px solid var(--gray-200);
}

.brand-card {
  background: var(--white);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background var(--transition);
}

.brand-card:hover {
  background: var(--gray-100);
}

.brand-num {
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--gray-400);
}

.brand-name {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  text-transform: uppercase;
}

.brand-desc {
  font-size: 0.82rem;
  color: var(--gray-500);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ─── Intro Band ─── */
.intro-band {
  background: var(--black);
  color: var(--white);
  padding: 4rem 2rem;
}

.intro-band-inner {
  max-width: var(--container);
  margin-inline: auto;
  display: flex;
  align-items: flex-start;
  gap: 4rem;
}

.intro-band p {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.8;
  color: var(--gray-300);
  max-width: 740px;
}

.intro-band strong {
  color: var(--white);
  font-weight: 500;
}

/* ─── Overview Page ─── */
.page-hero {
  padding: 5rem 2rem 4rem;
  max-width: var(--container);
  margin-inline: auto;
  border-bottom: 1px solid var(--gray-200);
}

.page-hero-label {
  font-family: var(--font-head);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 1.2rem;
  display: block;
}

.page-hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--black);
  max-width: 640px;
}

.page-hero-title em {
  font-style: normal;
  font-weight: 300;
  color: var(--gray-500);
}

/* Stats Row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--gray-200);
  border-left: 1px solid var(--gray-200);
  margin-bottom: 4rem;
}

.stat-item {
  border-right: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  padding: 2.5rem 2rem;
}

.stat-num {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--black);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
  font-weight: 400;
}

/* Highlights List */
.highlights-block {
  max-width: var(--container);
  margin-inline: auto;
  padding: 0 2rem 5rem;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  align-items: start;
}

.highlights-aside h2 {
  font-family: var(--font-head);
  font-size: clamp(1.4rem, 2.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.highlights-aside h2 em {
  font-style: normal;
  font-weight: 300;
  color: var(--gray-500);
}

.highlights-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.highlight-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.highlight-item:first-child {
  border-top: 1px solid var(--gray-200);
}

.hi-bullet {
  width: 6px;
  height: 6px;
  background: var(--black);
  border-radius: 50%;
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.hi-content {}

.hi-title {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--black);
  margin-bottom: 0.25rem;
}

.hi-text {
  font-size: 0.9rem;
  color: var(--gray-600);
  line-height: 1.65;
}

.hi-sub {
  font-size: 0.82rem;
  color: var(--gray-500);
  margin-top: 0.25rem;
  font-style: italic;
}

/* ─── Chairman Page ─── */
.chairman-hero {
  padding: 5rem 2rem 4rem;
  max-width: var(--container);
  margin-inline: auto;
  border-bottom: 1px solid var(--gray-200);
}

.chairman-body {
  max-width: var(--container);
  margin-inline: auto;
  padding: 4rem 2rem 5rem;
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 5rem;
  align-items: start;
}

.chairman-content {}

.chairman-bio-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 3rem;
}

.bio-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.bio-item:first-child {
  border-top: 1px solid var(--gray-200);
}

.bio-bullet {
  width: 6px;
  height: 6px;
  background: var(--black);
  border-radius: 50%;
  margin-top: 0.55rem;
  flex-shrink: 0;
}

.bio-text {
  font-size: 0.95rem;
  color: var(--gray-700);
  line-height: 1.75;
}

/* Links section */
.chairman-links {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.chairman-link-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1.2rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.chairman-link-item:first-child {
  border-top: 1px solid var(--gray-200);
}

.cl-label {
  font-family: var(--font-head);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-500);
  white-space: nowrap;
  min-width: 90px;
  padding-top: 0.1rem;
}

.cl-content {}

.cl-link {
  font-family: var(--font-head);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--black);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.cl-link:hover {
  color: var(--gray-600);
}

.cl-desc {
  font-size: 0.82rem;
  color: var(--gray-600);
  line-height: 1.65;
  margin-top: 0.3rem;
}

/* Chairman portrait */
.chairman-portrait {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}

.chairman-img-wrap {
  width: 100%;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--gray-100);
}

.chairman-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  filter: grayscale(100%);
  transition: filter 0.5s ease;
}

.chairman-img-wrap:hover img {
  filter: grayscale(60%);
}

.portrait-caption {
  margin-top: 1.2rem;
}

.portrait-name {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--black);
}

.portrait-role {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-top: 0.2rem;
}

/* ── Footer ─── */
.site-footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 3rem 2rem;
  border-top: 1px solid var(--black);
}

.footer-inner {
  max-width: var(--container);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.footer-brand {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.8;
}

.footer-brand strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.footer-contact {
  font-family: var(--font-body);
  font-size: 0.78rem;
  line-height: 1.8;
  text-align: right;
}

.footer-contact strong {
  display: block;
  color: var(--white);
  font-weight: 500;
  margin-bottom: 0.2rem;
}

.footer-contact a {
  color: var(--gray-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-contact a:hover {
  color: var(--white);
}

.footer-bottom {
  max-width: var(--container);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-700);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--gray-600);
}

/* ─── Footer Disclaimer ─── */
.footer-disclaimer {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.85rem 2rem 0;
  border-top: 1px solid #2a2a2a;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: #555555;
  letter-spacing: 0.03em;
  text-align: center;
  font-style: italic;
  line-height: 1.5;
}

/* ─── Animations ─── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-d1 { transition-delay: 0.1s; }
.fade-in-d2 { transition-delay: 0.2s; }
.fade-in-d3 { transition-delay: 0.3s; }
.fade-in-d4 { transition-delay: 0.4s; }

/* ── Divider ─── */
.section-divider {
  max-width: var(--container);
  margin-inline: auto;
  height: 1px;
  background: var(--gray-200);
}

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

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .highlights-block {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .chairman-body {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .chairman-portrait {
    position: static;
    max-width: 320px;
  }

  .intro-band-inner {
    flex-direction: column;
    gap: 2rem;
  }
}

@media (max-width: 640px) {
  :root { --nav-h: 60px; }

  .site-nav {
    display: none;
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--gray-300);
    gap: 0.5rem;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 0.7rem 0;
    font-size: 0.85rem;
  }

  .nav-divider {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

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

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-contact {
    text-align: left;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .hero { padding: 4rem 1.5rem 3rem; }
  .section { padding: 3rem 1.5rem; }
  .page-hero { padding: 3rem 1.5rem 2.5rem; }
  .chairman-body { padding: 3rem 1.5rem 4rem; }
  .highlights-block { padding: 0 1.5rem 3rem; }
}