/*
  Art direction: Actuarial expert consultant → authoritative, precise, modern
  Palette: Deep dark grey surfaces + orange accent (user-specified)
  Typography: Cabinet Grotesk (display) + Satoshi (body) — sharp, professional
  Density: Spacious with generous section heights (full-page scroll effect)
*/

/* ─── DESIGN TOKENS ─────────────────────────────────────────────────────── */
:root {
  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content widths */
  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1200px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body:    'Satoshi', 'Inter', sans-serif;
}

/* ─── DARK MODE (default) ─────────────────────────────────────────────── */
:root, [data-theme="dark"] {
  --color-bg:              #151515;
  --color-surface:         #1a1a1a;
  --color-surface-2:       #1f1f1f;
  --color-surface-offset:  #222222;
  --color-surface-dynamic: #2a2a2a;
  --color-divider:         #2e2e2e;
  --color-border:          #353535;

  --color-text:            #e8e6e3;
  --color-text-muted:      #888580;
  --color-text-faint:      #4a4845;
  --color-text-inverse:    #141414;

  /* Orange accent (Costa) */
  --color-primary:         #f59e0b;
  --color-primary-hover:   #fbbf24;
  --color-primary-active:  #fcd34d;
  --color-primary-dim:     rgba(245, 158, 11, 0.12);
  --color-primary-border:  rgba(245, 158, 11, 0.25);

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 4px 12px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 12px 32px oklch(0 0 0 / 0.5);
}

/* ─── LIGHT MODE ──────────────────────────────────────────────────────── */
:root:not([data-theme]), [data-theme="light"] {
  /* Only override if dark is not set; default is dark */
  --color-bg:              #f5f4f0;
  --color-surface:         #faf9f6;
  --color-surface-2:       #ffffff;
  --color-surface-offset:  #eeecea;
  --color-surface-dynamic: #e5e3de;
  --color-divider:         #dcd9d4;
  --color-border:          #d0ccc6;

  --color-text:            #1c1a17;
  --color-text-muted:      #6b6762;
  --color-text-faint:      #b0ada8;
  --color-text-inverse:    #faf9f6;

  --color-primary:         #d97706;
  --color-primary-hover:   #b45309;
  --color-primary-active:  #92400e;
  --color-primary-dim:     rgba(217, 119, 6, 0.10);
  --color-primary-border:  rgba(217, 119, 6, 0.22);

  --shadow-sm: 0 1px 2px oklch(0.2 0.01 60 / 0.06);
  --shadow-md: 0 4px 12px oklch(0.2 0.01 60 / 0.09);
  --shadow-lg: 0 12px 32px oklch(0.2 0.01 60 / 0.13);
}

/* Force dark unless user toggles */
html { color-scheme: dark; }
[data-theme="light"] { color-scheme: light; }

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.1; }
p, li { text-wrap: pretty; max-width: 72ch; }

::selection {
  background: var(--color-primary-dim);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

button { cursor: pointer; background: none; border: none; }

a, button, [role="button"] {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    opacity var(--transition-interactive);
}

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

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  html { scroll-snap-type: none; }
}

/* ─── HEADER / NAV ───────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-8);
  background: oklch(from var(--color-bg) l c h / 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition: background var(--transition-slow), border-color var(--transition-slow);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.logo-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text);
  line-height: 1;
}

.logo-text span { color: var(--color-primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.01em;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-dynamic);
  border-color: var(--color-border);
}

/* ─── PAGE SCROLL SECTIONS ───────────────────────────────────────────── */
.page-section {
  min-height: 100dvh;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  position: relative;
  padding: calc(var(--space-16) + 60px) var(--space-8) var(--space-16);
}

/* Alternating backgrounds for "different page" feel */
.page-section:nth-child(odd) { background-color: var(--color-bg); }
.page-section:nth-child(even) { background-color: var(--color-surface); }

/* Section inner container */
.section-inner {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
}

/* ─── SECTION LABELS ─────────────────────────────────────────────────── */
.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.section-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--color-primary);
}

/* ─── SECTION HEADINGS ───────────────────────────────────────────────── */
.section-heading {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1.05;
  margin-bottom: var(--space-4);
}

.section-heading em {
  font-style: normal;
  color: var(--color-primary);
}

.section-subheading {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 56ch;
  line-height: 1.65;
  margin-bottom: var(--space-10);
}

/* ─── SCROLL INDICATOR ───────────────────────────────────────────────── */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: bounce-fade 2s ease-in-out infinite;
}

.scroll-indicator svg {
  display: block;
}

@keyframes bounce-fade {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.5; }
  50%       { transform: translateX(-50%) translateY(6px); opacity: 1; }
}

/* ─── SECTION: HERO ──────────────────────────────────────────────────── */
.hero-section {
  text-align: left;
  background: var(--color-bg);
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -10%;
  right: -5%;
  width: 55vw;
  height: 80vh;
  background: radial-gradient(ellipse at 70% 30%, var(--color-primary-dim) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.hero-content { }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
  background: var(--color-primary-dim);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.0;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero-title em {
  font-style: normal;
  color: var(--color-primary);
}

.hero-body {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 46ch;
  margin-bottom: var(--space-10);
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 16px oklch(from var(--color-primary) l c h / 0.3);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
}

.btn-ghost:hover {
  color: var(--color-text);
  border-color: var(--color-text-muted);
  background: var(--color-surface-offset);
}

/* Hero visual card */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  width: 100%;
  max-width: 400px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-2xl);
  background: linear-gradient(135deg, var(--color-primary-border), transparent 50%);
  z-index: -1;
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-divider);
}

.hero-card-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-primary-dim);
  border: 1px solid var(--color-primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--text-base);
  flex-shrink: 0;
}

.hero-card-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.hero-card-role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.hero-stat {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-1);
}

.hero-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.3;
}

/* ─── SECTION: ABOUT ─────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-16);
  align-items: start;
}

.about-text-block {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-sm);
}

.about-text-block p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-5);
  max-width: 62ch;
}

.about-text-block p:last-child { margin-bottom: 0; }

.about-text-block p strong {
  color: var(--color-text);
  font-weight: 600;
}

.about-aside {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.about-tag-card {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-xl);
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.about-tag-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: var(--color-primary-dim);
  border: 1px solid var(--color-primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.about-tag-text {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.005em;
}

.about-tag-sub {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ─── SECTION: AREAS OF INTEREST ─────────────────────────────────────── */
.carousel-wrapper {
  position: relative;
  width: 100%;
}

.carousel-track-container {
  overflow: hidden;
  border-radius: var(--radius-2xl);
}

.carousel-track {
  display: flex;
  gap: var(--space-4);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

/* Areas carousel cards */
.area-card {
  flex: 0 0 calc(33.333% - var(--space-3));
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-7);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
  min-height: 200px;
}

.area-card:hover {
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-md);
}

.area-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-dim);
  border: 1px solid var(--color-primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.area-card-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.area-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Carousel controls */
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.carousel-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive);
}

.carousel-btn:hover {
  color: var(--color-text);
  background: var(--color-surface-dynamic);
  border-color: var(--color-primary-border);
}

.carousel-dots {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  border: none;
  cursor: pointer;
  transition:
    background var(--transition-interactive),
    width var(--transition-interactive);
  padding: 0;
}

.carousel-dot.active {
  background: var(--color-primary);
  width: 22px;
}

/* ─── ARTICLES CAROUSEL ──────────────────────────────────────────────── */
.article-card {
  flex: 0 0 calc(50% - var(--space-2));
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-7);
  display: flex;
  gap: var(--space-5);
  align-items: flex-start;
  text-decoration: none;
  color: inherit;
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
  min-height: 160px;
}

.article-card:hover {
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-md);
}

.article-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-dim);
  border: 1px solid var(--color-primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.article-body {
  flex: 1;
  min-width: 0;
}

.article-meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.article-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

.article-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.article-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ─── CONTACT SECTION ────────────────────────────────────────────────── */
.contact-section {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.contact-section::after {
  content: '';
  position: absolute;
  bottom: -15%;
  left: -5%;
  width: 60vw;
  height: 60vh;
  background: radial-gradient(ellipse at 30% 70%, var(--color-primary-dim) 0%, transparent 65%);
  pointer-events: none;
}

.contact-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
}

.contact-form-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-10);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
  letter-spacing: 0.01em;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-faint); }

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-dim);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

.form-submit {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.02em;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition:
    background var(--transition-interactive),
    box-shadow var(--transition-interactive);
}

.form-submit:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 20px oklch(from var(--color-primary) l c h / 0.35);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.contact-item-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--color-primary-dim);
  border: 1px solid var(--color-primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-item-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-weight: 600;
  color: var(--color-text-faint);
  margin-bottom: var(--space-1);
}

.contact-item-value {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
}

.contact-item-value:hover { color: var(--color-primary); }

/* ─── FOOTER ─────────────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  padding: var(--space-8);
  text-align: center;
}

.footer-text {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* ─── SCROLL PROGRESS ────────────────────────────────────────────────── */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--color-primary);
  z-index: 200;
  transition: width 0.1s linear;
  transform-origin: left;
}

/* ─── SECTION NAV DOTS ───────────────────────────────────────────────── */
.section-nav {
  position: fixed;
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: 99;
}

.section-nav-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  border: none;
  cursor: pointer;
  padding: 0;
  transition:
    background var(--transition-interactive),
    height var(--transition-interactive),
    transform var(--transition-interactive);
  position: relative;
}

.section-nav-dot.active {
  background: var(--color-primary);
  height: 24px;
  border-radius: 4px;
}

.section-nav-dot::after {
  content: attr(data-label);
  position: absolute;
  right: calc(100% + var(--space-3));
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--transition-interactive);
  pointer-events: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 2px var(--space-2);
}

.section-nav-dot:hover::after { opacity: 1; }

/* ─── FADE-IN ANIMATION ──────────────────────────────────────────────── */
.fade-in {
  opacity: 1;
}

@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 60%;
  }
  @keyframes reveal-fade { to { opacity: 1; } }
}

/* ─── MOBILE ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .site-header {
    padding: var(--space-3) var(--space-4);
  }

  .nav-links { display: none; }

  .page-section {
    padding: calc(var(--space-12) + 60px) var(--space-5) var(--space-12);
    min-height: 100dvh;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .hero-visual { display: none; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .area-card {
    flex: 0 0 calc(80vw - var(--space-8));
  }

  .article-card {
    flex: 0 0 calc(90vw - var(--space-8));
    flex-direction: column;
  }

  .contact-inner {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }

  .section-nav { display: none; }

  .hero-title { letter-spacing: -0.03em; }
}

@media (max-width: 1024px) and (min-width: 769px) {
  .area-card {
    flex: 0 0 calc(50% - var(--space-2));
  }
}