/* --------------------------------------------------------------------------
   Racmel Holdings LLC — design tokens, layout, components
   -------------------------------------------------------------------------- */

:root {
  --color-bg: #f7f6f4;
  --color-bg-subtle: #efeeeb;
  --color-surface: #ffffff;
  --color-text: #141312;
  --color-text-muted: #5c5a57;
  --color-border: #e0ded9;
  --color-border-strong: #c9c6c0;
  --color-accent: #1a1918;
  --color-accent-hover: #000000;
  --color-line: #2a2928;

  --font-sans: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-sm: 0 1px 2px rgba(20, 19, 18, 0.04);
  --shadow-md: 0 8px 24px rgba(20, 19, 18, 0.06);

  --header-h: 4rem;
  --container: 72rem;
  --transition: 0.2s ease;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--space-md));
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

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

:focus-visible {
  outline: 2px solid var(--color-line);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  z-index: 1000;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  top: var(--space-md);
}

.container {
  width: min(100% - var(--space-xl) * 2, var(--container));
  margin-inline: auto;
}

.container.narrow {
  max-width: 42rem;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 246, 244, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  min-height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  line-height: 0;
}

.logo:hover {
  text-decoration: none;
}

.logo-img {
  display: block;
  height: auto;
  width: auto;
  max-height: 3.25rem;
  max-width: min(58vw, 14rem);
  object-fit: contain;
  object-position: left center;
  transition: opacity var(--transition);
}

.logo:hover .logo-img {
  opacity: 0.9;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 1.125rem;
  height: 2px;
  margin-inline: auto;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}

.site-header.is-nav-open .nav-toggle-bar:first-child {
  transform: translateY(4px) rotate(45deg);
}

.site-header.is-nav-open .nav-toggle-bar:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

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

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-lg);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-muted);
}

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

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

@media (max-width: 768px) {
  .logo {
    position: relative;
    z-index: 2;
  }

  .nav-toggle {
    display: flex;
    position: relative;
    z-index: 2;
  }

  .site-nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 0;
    z-index: 1;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: calc(var(--header-h) + var(--space-lg)) var(--space-xl) var(--space-xl);
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
  }

  .nav-list a {
    font-size: 1.125rem;
  }

  .nav-cta {
    text-align: center;
  }
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), border-color var(--transition),
    transform 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

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

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-surface);
  text-decoration: none;
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover {
  border-color: var(--color-text);
  color: var(--color-text);
  text-decoration: none;
}

.btn-full {
  width: 100%;
}

/* Hero */

.hero {
  position: relative;
  padding: var(--space-4xl) 0 var(--space-3xl);
  overflow: hidden;
}

@media (min-width: 769px) {
  .hero {
    padding: var(--space-4xl) 0 5rem;
  }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 40rem;
}

.hero-eyebrow {
  margin: 0 0 var(--space-md);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero-title {
  margin: 0 0 var(--space-lg);
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.hero-lead {
  margin: 0 0 var(--space-xl);
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.hero-accent {
  position: absolute;
  right: max(-5%, -3rem);
  top: 50%;
  transform: translateY(-50%);
  width: min(45vw, 22rem);
  height: min(45vw, 22rem);
  border-radius: 50%;
  background: radial-gradient(
    circle at 30% 30%,
    rgba(224, 222, 217, 0.9) 0%,
    rgba(247, 246, 244, 0) 70%
  );
  pointer-events: none;
}

@media (max-width: 768px) {
  .hero-accent {
    opacity: 0.5;
    top: 20%;
    transform: none;
  }
}

/* Sections */

.section {
  padding: var(--space-3xl) 0;
}

.section + .section {
  border-top: 1px solid var(--color-border);
}

.section-title {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.5rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-head .section-title {
  margin-bottom: var(--space-sm);
}

.section-intro {
  margin: 0;
  max-width: 36rem;
  color: var(--color-text-muted);
  font-size: 1.0625rem;
}

.prose p {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose .lead {
  font-size: 1.2rem;
  color: var(--color-text);
  line-height: 1.55;
}

/* Cards — What we build */

.card-grid {
  display: grid;
  gap: var(--space-md);
  margin: var(--space-2xl) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .card-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
  }
}

.card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition), transform 0.25s ease;
}

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

.card-title {
  margin: 0 0 var(--space-sm);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card-text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Portfolio */

.portfolio {
  background: var(--color-bg-subtle);
}

.portfolio-grid {
  display: grid;
  gap: var(--space-md);
  margin: var(--space-2xl) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 768px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.portfolio-card {
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), background-color var(--transition);
}

.portfolio-card:hover {
  border-style: solid;
  border-color: var(--color-border-strong);
}

.portfolio-label {
  display: inline-block;
  margin-bottom: var(--space-sm);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.portfolio-title {
  margin: 0 0 var(--space-sm);
  font-size: 1.125rem;
  font-weight: 600;
}

.portfolio-text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Approach pillars */

.pillars {
  margin: var(--space-2xl) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .pillars {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-xl);
  }
}

.pillar {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--color-surface);
  border-left: 3px solid var(--color-line);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}

.pillar:hover {
  box-shadow: var(--shadow-md);
}

.pillar-index {
  flex-shrink: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.pillar-title {
  margin: 0 0 var(--space-sm);
  font-size: 1.0625rem;
  font-weight: 600;
}

.pillar-text {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Contact */

.contact-grid {
  display: grid;
  gap: var(--space-2xl);
  align-items: start;
}

@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1.1fr;
    gap: var(--space-3xl);
  }
}

.contact-lead {
  margin-bottom: var(--space-xl);
}

.contact-details {
  font-style: normal;
  margin: 0;
}

.contact-details p {
  margin: 0 0 var(--space-lg);
}

.contact-details p:last-child {
  margin-bottom: 0;
}

.contact-details-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.contact-details a {
  font-weight: 500;
  text-decoration: none;
}

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

.contact-details-value {
  font-weight: 500;
}

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

.form-row {
  margin-bottom: var(--space-lg);
}

.form-row:last-of-type {
  margin-bottom: var(--space-md);
}

.form-row label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 600;
}

.optional {
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-text-muted);
  box-shadow: 0 0 0 3px rgba(20, 19, 18, 0.06);
}

.form-row textarea {
  resize: vertical;
  min-height: 8rem;
}

.field-error {
  display: block;
  margin-top: var(--space-sm);
  font-size: 0.8125rem;
  color: #8b2e2e;
  min-height: 1.2em;
}

.form-status {
  margin: var(--space-md) 0 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  min-height: 1.5em;
}

.form-status.is-success {
  color: var(--color-text);
  font-weight: 500;
}

/* Footer */

.site-footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  text-align: center;
}

@media (min-width: 640px) {
  .footer-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  margin: 0;
  line-height: 0;
  text-decoration: none;
}

.footer-brand:hover {
  text-decoration: none;
}

.footer-logo {
  display: block;
  height: auto;
  width: auto;
  max-height: 2.5rem;
  max-width: 11rem;
  object-fit: contain;
  object-position: left center;
  opacity: 0.92;
  transition: opacity var(--transition);
}

.footer-brand:hover .footer-logo {
  opacity: 1;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md) var(--space-lg);
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 640px) {
  .footer-nav ul {
    justify-content: flex-end;
  }
}

.footer-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
}

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

.footer-copy {
  margin: 0;
  width: 100%;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .footer-copy {
    width: auto;
    order: 3;
    flex-basis: 100%;
    text-align: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
  }
}

/* Scroll reveal */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 {
  transition-delay: 0.06s;
}

.reveal-delay-2 {
  transition-delay: 0.12s;
}

.reveal-delay-3 {
  transition-delay: 0.18s;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}