/* ===================================
   River City Web Co — Design System
   =================================== */

:root {
  /* Earthy, warm palette with Richmond energy */
  --color-ink: #1a1a1a;
  --color-ink-light: #4a4a4a;
  --color-bg: #faf8f5;
  --color-bg-alt: #f0ece6;
  --color-accent: #2e6b4f;
  --color-accent-light: #3d8b68;
  --color-warm: #c4713b;
  --color-warm-light: #e8a66a;
  --color-river: #3a6b8c;
  --color-border: #ddd5ca;

  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-display: 'DM Serif Display', Georgia, serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;

  --max-width: 72rem;
  --content-width: 48rem;
}

/* ===== Reset & Base ===== */

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-ink);
  background-color: var(--color-bg);
}

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
  transition: color 0.2s;
}

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

/* ===== Typography ===== */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-ink);
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p + p {
  margin-top: var(--space-sm);
}

/* ===== Layout ===== */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-inline: var(--space-md);
}

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

.section {
  padding-block: var(--space-lg);
}

.section + .section {
  padding-top: 0;
}

.section-alt {
  background-color: var(--color-bg-alt);
  padding-block: var(--space-lg);
}

/* ===== Header ===== */

.site-header {
  padding-block: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--color-ink);
  text-decoration: none;
}

.site-logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.site-logo:hover {
  color: var(--color-accent);
}

.nav-menu {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.nav-menu a {
  color: var(--color-ink-light);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.nav-menu a:hover,
.nav-menu a[aria-current="page"] {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-ink);
  transition: transform 0.2s;
}

/* ===== Hero ===== */

.hero {
  padding-block: var(--space-xl) var(--space-lg);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-md);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero h1 {
  max-width: 18ch;
  margin-bottom: var(--space-sm);
}

.hero .lead {
  font-size: 1.25rem;
  color: var(--color-ink-light);
  max-width: 50ch;
  line-height: 1.6;
}

.hero-accent {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-heron {
  width: 100%;
  max-width: 420px;
  height: auto;
  opacity: 0.08;
}

/* ===== Buttons ===== */

.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--color-accent-light);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-outline:hover {
  background-color: var(--color-accent);
  color: #fff;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* ===== Cards ===== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-md);
}

.card h3 {
  margin-bottom: var(--space-xs);
}

.card p {
  color: var(--color-ink-light);
}

/* ===== Services ===== */

.service-track {
  margin-top: var(--space-lg);
}

.service-track h2 {
  margin-bottom: var(--space-xs);
}

.service-track .track-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.75rem;
  border-radius: 3px;
  margin-bottom: var(--space-sm);
}

.track-community .track-label {
  background-color: #e8f0eb;
  color: var(--color-accent);
}

.track-business .track-label {
  background-color: #fbe8d8;
  color: var(--color-warm);
}

/* ===== Page Header ===== */

.page-header {
  padding-block: var(--space-lg) var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  margin-bottom: var(--space-xs);
}

.page-header .subtitle {
  font-size: 1.2rem;
  color: var(--color-ink-light);
  max-width: 55ch;
}

/* ===== About ===== */

.about-content {
  max-width: var(--content-width);
}

.about-content p {
  margin-bottom: var(--space-sm);
}

/* ===== Portfolio ===== */

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.portfolio-item {
  background: var(--color-bg-alt);
  border-radius: 8px;
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  color: var(--color-ink-light);
  border: 2px dashed var(--color-border);
}

/* ===== Contact ===== */

.contact-form {
  max-width: var(--content-width);
}

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

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: #fff;
  color: var(--color-ink);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}

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

/* ===== Footer ===== */

.site-footer {
  margin-top: var(--space-xl);
  padding-block: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-ink-light);
}

/* ===== Values / Features Grid ===== */

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.value-item h3 {
  margin-bottom: 0.25rem;
  font-size: 1.15rem;
  font-family: var(--font-body);
  font-weight: 700;
}

.value-item p {
  color: var(--color-ink-light);
  font-size: 1rem;
}

/* ===== Responsive ===== */

@media (max-width: 48rem) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    gap: 0;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu li {
    padding-block: var(--space-xs);
  }

  .site-header .container {
    position: relative;
  }

  .hero {
    padding-block: var(--space-lg) var(--space-md);
  }

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

  .hero-accent {
    display: none;
  }
}

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