/* style.css — Rampart Space Institute Brand System */

/* ===================================================
   RSI BRAND TOKENS
   =================================================== */

:root,
[data-theme='light'] {
  /* RSI Brand Colors */
  --rsi-teal-dark: #01696F;
  --rsi-teal-light: #4F98A3;
  --rsi-slate: #2C3E50;
  --rsi-sandstone: #C4A882;
  --rsi-charcoal: #3D3D3D;
  --rsi-bg: #F8F8F6;

  /* Semantic Color Roles — Light */
  --color-bg: #F8F8F6;
  --color-surface: #FFFFFF;
  --color-surface-2: #F0F0EE;
  --color-surface-offset: #E8E8E5;
  --color-surface-dynamic: #DCDCD9;
  --color-divider: #D4D4D0;
  --color-border: #C8C8C4;

  /* Text */
  --color-text: #1E2A35;
  --color-text-muted: #5A6672;
  --color-text-faint: #9AA3AC;
  --color-text-inverse: #F8F8F6;

  /* Primary (Teal) */
  --color-primary: #01696F;
  --color-primary-hover: #015458;
  --color-primary-active: #013E42;
  --color-primary-highlight: #D0E8E9;

  /* Accent (Sandstone) */
  --color-accent: #C4A882;
  --color-accent-hover: #B09268;
  --color-accent-highlight: #F2EBE0;

  /* 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);
  --text-hero: clamp(3rem, 0.5rem + 7vw, 7rem);

  /* 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;
  --space-32: 8rem;

  /* Typography */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'General Sans', 'Helvetica Neue', sans-serif;

  /* Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(28, 42, 53, 0.06);
  --shadow-md: 0 4px 14px rgba(28, 42, 53, 0.10);
  --shadow-lg: 0 12px 36px rgba(28, 42, 53, 0.14);

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

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

[data-theme='dark'] {
  --color-bg: #111A22;
  --color-surface: #172029;
  --color-surface-2: #1C2730;
  --color-surface-offset: #1E2B35;
  --color-surface-dynamic: #253240;
  --color-divider: #2C3A47;
  --color-border: #344454;

  --color-text: #D8DFE4;
  --color-text-muted: #7A8A96;
  --color-text-faint: #4A5A66;
  --color-text-inverse: #111A22;

  --color-primary: #4F98A3;
  --color-primary-hover: #63AEBA;
  --color-primary-active: #7AC4CE;
  --color-primary-highlight: #1A3038;

  --color-accent: #C4A882;
  --color-accent-hover: #D4BC9A;
  --color-accent-highlight: #2C2418;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #111A22;
    --color-surface: #172029;
    --color-surface-2: #1C2730;
    --color-surface-offset: #1E2B35;
    --color-surface-dynamic: #253240;
    --color-divider: #2C3A47;
    --color-border: #344454;

    --color-text: #D8DFE4;
    --color-text-muted: #7A8A96;
    --color-text-faint: #4A5A66;
    --color-text-inverse: #111A22;

    --color-primary: #4F98A3;
    --color-primary-hover: #63AEBA;
    --color-primary-active: #7AC4CE;
    --color-primary-highlight: #1A3038;

    --color-accent: #C4A882;
    --color-accent-hover: #D4BC9A;
    --color-accent-highlight: #2C2418;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.4);
  }
}

/* ===================================================
   LAYOUT
   =================================================== */

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 4vw, var(--space-16));
}

.container--narrow {
  max-width: var(--content-default);
}

/* ===================================================
   HEADER / NAV
   =================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-divider);
  transition:
    box-shadow var(--transition-interactive),
    border-color var(--transition-interactive);
}

.site-header--scrolled {
  box-shadow: var(--shadow-md);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding-block: var(--space-4);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.site-nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  letter-spacing: 0.01em;
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive);
}

.site-nav__link:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

.site-nav__link.active {
  color: var(--color-primary);
  background: var(--color-primary-highlight);
}

.site-nav__cta {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-inverse);
  background: var(--color-primary);
  text-decoration: none;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  letter-spacing: 0.02em;
  transition:
    background var(--transition-interactive),
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive);
}

.site-nav__cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.site-nav__cta:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Nav Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo__mark {
  flex-shrink: 0;
}

.nav-logo__wordmark {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.nav-logo__name {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nav-logo__tagline {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

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

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

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  cursor: pointer;
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive);
}

.mobile-menu-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-4);
    gap: var(--space-1);
    box-shadow: var(--shadow-lg);
  }

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

  .site-nav__link {
    padding: var(--space-3) var(--space-4);
  }

  .site-nav__cta {
    text-align: center;
    padding: var(--space-3) var(--space-4);
    margin-top: var(--space-2);
  }

  .mobile-menu-toggle {
    display: flex;
  }
}

/* ===================================================
   HERO SECTIONS
   =================================================== */

.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background-color: var(--rsi-slate);
  overflow: hidden;
}

.hero--page {
  min-height: 40vh;
  padding-block: var(--space-24);
}

.hero--teal {
  background: linear-gradient(135deg, var(--rsi-slate) 0%, #1a4a50 60%, var(--rsi-teal-dark) 100%);
}

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

.hero__content {
  position: relative;
  z-index: 2;
  padding-block: clamp(var(--space-20), 10vw, var(--space-32));
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--rsi-sandstone);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--rsi-sandstone);
}

.hero__headline {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  max-width: 15ch;
}

.hero__headline em {
  font-style: normal;
  color: var(--rsi-teal-light);
}

.hero__subheadline {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  max-width: 55ch;
  margin-bottom: var(--space-10);
}

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

.hero__page-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.hero__page-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.7);
  max-width: 55ch;
}

/* ===================================================
   BUTTONS
   =================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 2px solid transparent;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn--primary {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn--outline {
  background: transparent;
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.7);
}

.btn--outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline-dark:hover {
  background: var(--color-primary-highlight);
}

.btn--lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

/* ===================================================
   SECTIONS
   =================================================== */

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section--dark {
  background: var(--rsi-slate);
  color: #FFFFFF;
}

.section--teal {
  background: var(--rsi-teal-dark);
  color: #FFFFFF;
}

.section--offset {
  background: var(--color-surface-2);
}

.section__header {
  margin-bottom: clamp(var(--space-10), 4vw, var(--space-16));
}

.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.section--dark .section__eyebrow,
.section--teal .section__eyebrow {
  color: var(--rsi-sandstone);
}

.section__eyebrow::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: currentColor;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-text);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.section--dark .section__title,
.section--teal .section__title {
  color: #FFFFFF;
}

.section__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 60ch;
  line-height: 1.7;
}

.section--dark .section__subtitle,
.section--teal .section__subtitle {
  color: rgba(255, 255, 255, 0.7);
}

/* ===================================================
   CARDS
   =================================================== */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 3vw, var(--space-10));
  transition:
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive),
    border-color var(--transition-interactive);
}

.card--hover:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.card--dark {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.card--dark:hover {
  border-color: var(--rsi-teal-light);
}

.card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
  flex-shrink: 0;
}

.card--dark .card__icon {
  background: rgba(79, 152, 163, 0.15);
  color: var(--rsi-teal-light);
}

.card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  letter-spacing: -0.01em;
}

.card--dark .card__title {
  color: #FFFFFF;
}

.card__body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.card--dark .card__body {
  color: rgba(255, 255, 255, 0.65);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  margin-top: var(--space-5);
  letter-spacing: 0.01em;
  transition: gap var(--transition-interactive), color var(--transition-interactive);
}

.card__link:hover {
  gap: var(--space-3);
  color: var(--color-primary-hover);
}

/* ===================================================
   GRIDS
   =================================================== */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(var(--space-6), 3vw, var(--space-8));
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(var(--space-6), 3vw, var(--space-10));
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(var(--space-6), 3vw, var(--space-8));
}

@media (max-width: 900px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (min-width: 600px) and (max-width: 900px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

/* ===================================================
   STRIP / BANNER
   =================================================== */

.strip {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}

.strip--dark {
  background: var(--rsi-slate);
  border-color: rgba(255, 255, 255, 0.1);
}

.strip--teal {
  background: var(--rsi-teal-dark);
  border-color: rgba(255, 255, 255, 0.1);
}

.strip__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  flex-wrap: wrap;
}

.strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.strip--dark .strip__item,
.strip--teal .strip__item {
  color: rgba(255, 255, 255, 0.7);
}

.strip__item-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.strip--dark .strip__item-icon,
.strip--teal .strip__item-icon {
  color: var(--rsi-sandstone);
}

/* ===================================================
   STAT PILLARS
   =================================================== */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.stat-item {
  background: var(--color-surface);
  padding: clamp(var(--space-8), 4vw, var(--space-12));
  text-align: center;
}

.stat-item__value {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: var(--space-2);
}

.stat-item__label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

@media (max-width: 600px) {
  .stat-grid { grid-template-columns: 1fr; }
}

/* ===================================================
   WHO WE SERVE GRID
   =================================================== */

.serve-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4);
}

.serve-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  text-align: center;
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.serve-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.serve-item__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
}

.serve-item__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.3;
}

/* ===================================================
   ABOUT PREVIEW / PROFILE
   =================================================== */

.profile-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-10);
  align-items: start;
}

.profile-card__photo {
  width: 200px;
  height: 260px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid var(--color-border);
}

.profile-card__photo-placeholder {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.4;
}

.profile-card__name {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-1);
}

.profile-card__title {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}

.profile-card__bio {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
}

@media (max-width: 600px) {
  .profile-card {
    grid-template-columns: 1fr;
  }

  .profile-card__photo {
    width: 100%;
    height: 200px;
  }
}

/* ===================================================
   CREDIBILITY STRIP
   =================================================== */

.cred-strip {
  background: var(--color-surface-2);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  padding-block: var(--space-6);
}

.cred-strip__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(var(--space-6), 3vw, var(--space-12));
  flex-wrap: wrap;
}

.cred-strip__item {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.cred-strip__divider {
  width: 1px;
  height: 16px;
  background: var(--color-border);
}

/* ===================================================
   FOOTER
   =================================================== */

.site-footer {
  background: var(--rsi-slate);
  color: rgba(255, 255, 255, 0.8);
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  margin-bottom: var(--space-12);
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  margin-bottom: var(--space-2);
}

.footer-logo__img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.footer-logo__name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.01em;
}

.footer-tagline {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.5;
}

.footer-contact {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--space-4);
}

.footer-contact a {
  color: var(--rsi-teal-light);
  text-decoration: none;
}

.footer-contact a:hover {
  color: #FFFFFF;
}

.site-footer__col-title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-5);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
}

.site-footer__links a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.site-footer__links a:hover {
  color: #FFFFFF;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  flex-wrap: wrap;
}

.site-footer__copyright {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
}

.site-footer__legal {
  display: flex;
  gap: var(--space-6);
}

.site-footer__legal a {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: color var(--transition-interactive);
}

.site-footer__legal a:hover {
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 900px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================================
   VALUES / FEATURES
   =================================================== */

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(var(--space-6), 3vw, var(--space-10));
}

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

.value-item__number {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.2;
  line-height: 1;
  letter-spacing: -0.04em;
}

.value-item__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.value-item__body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .values-grid { grid-template-columns: 1fr; }
}

/* ===================================================
   PROCESS STEPS
   =================================================== */

.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(var(--space-6), 3vw, var(--space-8));
  position: relative;
}

.process-steps::before {
  content: '';
  position: absolute;
  top: 24px;
  left: calc(16.67% + var(--space-6));
  right: calc(16.67% + var(--space-6));
  height: 1px;
  background: var(--color-primary);
  opacity: 0.3;
}

.process-step {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  position: relative;
}

.process-step__number {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.section--dark .process-step__number {
  background: var(--rsi-teal-light);
  color: var(--rsi-slate);
}

.process-step__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.section--dark .process-step__title {
  color: #FFFFFF;
}

.process-step__body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.section--dark .process-step__body {
  color: rgba(255, 255, 255, 0.65);
}

@media (max-width: 768px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
  .process-steps::before {
    display: none;
  }
}

/* ===================================================
   SCENARIO CARDS (TTX)
   =================================================== */

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(var(--space-5), 2vw, var(--space-6));
}

@media (min-width: 900px) {
  .scenario-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .scenario-grid {
    grid-template-columns: 1fr;
  }
}

.scenario-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition:
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive),
    border-color var(--transition-interactive);
}

.scenario-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.scenario-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.scenario-card__number {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.7;
}

.scenario-card__badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.badge--intro {
  background: #E8F4E8;
  color: #2A7A2A;
}

.badge--intermediate {
  background: #FFF4E0;
  color: #8A5A00;
}

.badge--advanced {
  background: #FCE8E8;
  color: #8A2222;
}

[data-theme='dark'] .badge--intro {
  background: rgba(42, 122, 42, 0.2);
  color: #6AAA6A;
}

[data-theme='dark'] .badge--intermediate {
  background: rgba(138, 90, 0, 0.2);
  color: #C49040;
}

[data-theme='dark'] .badge--advanced {
  background: rgba(138, 34, 34, 0.2);
  color: #D06060;
}

.scenario-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.scenario-card__audience {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.scenario-card__desc {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ===================================================
   SERVICE DETAIL
   =================================================== */

.service-block {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  align-items: start;
  padding-block: clamp(var(--space-10), 5vw, var(--space-16));
  border-top: 1px solid var(--color-border);
}

.service-block:first-child {
  border-top: none;
}

.service-block__meta {
  position: sticky;
  top: calc(var(--space-16) + var(--space-4));
}

.service-block__number {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.12;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: var(--space-2);
}

.service-block__category {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}

.service-block__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.service-block__price {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}

.service-block__price strong {
  color: var(--color-primary);
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

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

.service-block__desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.75;
}

.service-block__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.service-block__features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: none;
}

.service-block__features li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
  margin-top: 0.45em;
}

@media (max-width: 768px) {
  .service-block {
    grid-template-columns: 1fr;
  }

  .service-block__meta {
    position: static;
  }
}

/* ===================================================
   CONTACT FORM
   =================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: clamp(var(--space-10), 5vw, var(--space-20));
  align-items: start;
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding-block: var(--space-5);
  border-top: 1px solid var(--color-divider);
}

.contact-info__item:last-child {
  border-bottom: 1px solid var(--color-divider);
}

.contact-info__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-info__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-1);
}

.contact-info__value {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 500;
}

.contact-info__value a {
  color: var(--color-primary);
  text-decoration: none;
}

.contact-info__value a:hover {
  text-decoration: underline;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-group label {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: 0.01em;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
  -webkit-appearance: none;
  appearance: none;
}

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

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ===================================================
   SCROLL ANIMATIONS
   =================================================== */

.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; }
}

/* ===================================================
   MISSION STATEMENT
   =================================================== */

.mission-statement {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.45;
  letter-spacing: -0.01em;
  border-left: 4px solid var(--color-primary);
  padding-left: var(--space-8);
}

/* ===================================================
   ENGAGEMENT MODELS
   =================================================== */

.naics-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.naics-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: 0.04em;
}

/* ===================================================
   CTA SECTION
   =================================================== */

.cta-section {
  background: linear-gradient(135deg, var(--rsi-slate) 0%, #1a4a50 60%, var(--rsi-teal-dark) 100%);
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.cta-section__subtitle {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.7);
  max-width: 55ch;
  margin-inline: auto;
  margin-bottom: var(--space-10);
  line-height: 1.7;
}

.cta-section__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* ===================================================
   VIEW TRANSITIONS
   =================================================== */

@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: fade-out 0.18s cubic-bezier(0.4, 0, 1, 1);
}

::view-transition-new(root) {
  animation: fade-in-page 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fade-out {
  to { opacity: 0; }
}

@keyframes fade-in-page {
  from { opacity: 0; }
}