/* ==========================================================================
   Aster Reef — Corporate Static Website Stylesheet
   Brand palette derived from logo mark:
   - Deep Teal (#0D5764) — center star of the mark
   - Coral (#D9534A / #F07065) — reef branches of the mark
   - Deep Ink (#1E2224) — typography and dark surfaces
   ========================================================================== */

:root {
  --color-teal: #0D5764;
  --color-teal-dark: #093F49;
  --color-teal-light: #EAF3F5;
  --color-coral: #D9534A;
  --color-coral-light: #F07065;
  --color-coral-tint: #FDF2F1;

  --color-ink: #1E2224;
  --color-text: #2C3336;
  --color-text-muted: #5A656A;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F6F8F9;
  --color-border: #E1E7EA;
  --color-footer-bg: #132A30;
  --color-footer-text: #D5E1E4;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  --container-max: 1120px;
  --container-narrow: 760px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --shadow-sm: 0 1px 3px rgba(19, 42, 48, 0.06);
  --shadow-md: 0 8px 24px rgba(19, 42, 48, 0.07);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.2;
  margin-top: 0;
  letter-spacing: -0.02em;
}

p {
  margin-top: 0;
  margin-bottom: 1.25rem;
}

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

a {
  color: var(--color-teal);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s ease;
}

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

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

/* Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--color-teal);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 16px;
  color: #fff;
}

/* Layout Containers */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

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

.section {
  padding: 88px 0;
}

.section-alt {
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Typography Helpers */
.eyebrow,
.section-kicker {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-coral);
  margin-bottom: 0.75rem;
}

.section-heading {
  max-width: 640px;
  margin-bottom: 3rem;
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.1s ease;
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.875rem;
}

.btn-full {
  width: 100%;
}

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

.btn-primary:hover {
  background-color: var(--color-teal-dark);
  color: #FFFFFF;
}

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

.btn-secondary:hover {
  background-color: var(--color-bg-alt);
  border-color: #C5D0D5;
  color: var(--color-ink);
}

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-ink);
}

.brand:hover {
  color: var(--color-ink);
}

.brand-logo {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  line-height: 1;
}

.brand-aster {
  font-weight: 700;
  color: var(--color-teal);
}

.brand-reef {
  font-weight: 300;
  color: var(--color-coral);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.nav-link:hover {
  color: var(--color-teal);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink);
  margin: 4px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* Hero Section */
.hero {
  padding: 84px 0 96px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 56px;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.25rem, 4.2vw, 3.25rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--color-ink);
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 580px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  box-shadow: var(--shadow-sm);
}

.hero-mark {
  width: 112px;
  height: 112px;
}

.hero-card-lines {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.spec-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-ink);
}

.spec-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.dot-teal {
  background-color: var(--color-teal);
}

.dot-coral {
  background-color: var(--color-coral);
}

/* About Section */
.section-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.section-body-col p {
  font-size: 1.0625rem;
  color: var(--color-text);
}

/* Services Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-teal);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

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

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--color-teal-light);
  color: var(--color-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-text {
  color: var(--color-text-muted);
  font-size: 0.96875rem;
}

/* How We Work Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.step-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}

.step-number {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-coral);
  background-color: var(--color-coral-tint);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 16px;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.contact-intro {
  color: var(--color-text-muted);
  font-size: 1.0625rem;
  margin-bottom: 2rem;
}

.contact-details {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}

.contact-item dt {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-item dd {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-ink);
}

.contact-form-wrapper {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-ink);
  background-color: #FFFFFF;
  border: 1px solid #C8D2D7;
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-teal);
  box-shadow: 0 0 0 3px rgba(13, 87, 100, 0.14);
}

.form-note {
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Footer */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 64px 0 36px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand-col {
  max-width: 340px;
}

.brand-footer .brand-aster {
  color: #FFFFFF;
}

.brand-footer .brand-reef {
  color: var(--color-coral-light);
}

.footer-tagline {
  margin-top: 14px;
  font-size: 0.9375rem;
  color: rgba(213, 225, 228, 0.8);
}

.footer-links-col {
  display: flex;
  gap: 64px;
  flex-wrap: wrap;
}

.footer-heading {
  color: #FFFFFF;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-list a {
  color: var(--color-footer-text);
  text-decoration: none;
  font-size: 0.9375rem;
}

.footer-list a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}

.footer-bottom {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.875rem;
  color: rgba(213, 225, 228, 0.75);
}

.footer-copyright,
.footer-legal-meta {
  margin: 0;
}

/* Legal Pages (Privacy & Terms) */
.legal-page {
  padding: 64px 0 88px;
}

.legal-title {
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  margin-bottom: 8px;
}

.legal-meta {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.legal-content h2 {
  font-size: 1.25rem;
  margin-top: 32px;
  margin-bottom: 12px;
}

.legal-content ul {
  margin-top: 0;
  margin-bottom: 1.25rem;
  padding-left: 24px;
}

.legal-content li {
  margin-bottom: 6px;
}

.legal-back {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .section-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

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

@media (max-width: 720px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 56px 0 64px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px 24px;
    box-shadow: var(--shadow-md);
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .nav-list .btn {
    width: 100%;
  }

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

  .contact-form-wrapper {
    padding: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}