/* devSentinel — static site styles */

:root {
  --color-navy: #1e3a5f;
  --color-navy-dark: #152a45;
  --color-navy-light: #2a4f7a;
  --color-text: #1a1a2e;
  --color-text-muted: #5a6270;
  --color-bg: #f2f5f8;
  --color-bg-alt: #e9eef3;
  --color-bg-surface: #ffffff;
  --color-border: #dde3ea;
  --color-footer: #0a1e38;
  --color-footer-border: rgba(120, 158, 205, 0.18);
  --color-nav-hover: #e6edf4;
  --color-nav-active: #d9e5f0;
  --color-focus: #3b6ea5;
  --font-family: "Inter", system-ui, -apple-system, sans-serif;
  --radius: 8px;
  --shadow-sm: 0 1px 3px rgba(30, 58, 95, 0.04);
  --max-width: 1120px;
  --header-height: 7.5rem;
  --site-gutter: 1.25rem;
  --site-align: max(var(--site-gutter), calc((100vw - var(--max-width)) / 2 + var(--site-gutter)));
  --hero-text-indent: 1rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-navy);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.5rem 1rem;
  background: var(--color-navy);
  color: #fff;
  border-radius: var(--radius);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.625rem 1.25rem;
  min-height: var(--header-height);
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 1;
  min-width: 0;
}

.logo:hover .logo-img {
  opacity: 0.88;
}

.logo-img {
  width: min(11.25rem, 68vw);
  height: auto;
  object-fit: contain;
  object-position: left center;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-surface);
  cursor: pointer;
  color: var(--color-navy);
}

.nav-toggle:hover {
  background: var(--color-nav-hover);
  border-color: #cdd8e4;
}

.nav-toggle svg {
  width: 22px;
  height: 22px;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-nav a {
  display: block;
  padding: 0.625rem 1rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  background: transparent;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.site-nav a:hover {
  color: var(--color-navy);
  border-bottom-color: rgba(30, 58, 95, 0.3);
}

.site-nav a[aria-current="page"] {
  color: var(--color-navy);
  font-weight: 600;
  border-bottom-color: var(--color-navy);
}

.site-nav a:focus-visible {
  outline: none;
  border-bottom-color: var(--color-focus);
}

@media (min-width: 768px) {
  :root {
    --header-height: 9rem;
  }

  .logo-img {
    width: min(15rem, 34vw);
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block !important;
  }

  .site-nav ul {
    flex-direction: row;
    gap: 0.125rem;
  }

  .site-nav a {
    padding: 0.5rem 0.875rem;
  }
}

@media (max-width: 767px) {
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-bg-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1.25rem 1rem;
    box-shadow: var(--shadow-sm);
  }

  .site-nav a {
    border-bottom: none;
    border-left: 2px solid transparent;
    padding-left: calc(1rem - 2px);
  }

  .site-nav a:hover {
    border-bottom-color: transparent;
    border-left-color: rgba(30, 58, 95, 0.3);
  }

  .site-nav a[aria-current="page"] {
    border-bottom-color: transparent;
    border-left-color: var(--color-navy);
  }

  .site-nav a:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--color-focus);
  }

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

  .site-header {
    position: relative;
  }
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 3.5rem 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section-header {
  margin-bottom: 2rem;
}

.section-header h2 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.section-header p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 42rem;
}

/* Hero band (home + inner page headers) */
.hero,
.page-header {
  position: relative;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  overflow: hidden;
}

.hero::before,
.page-header::before {
  content: "";
  position: absolute;
  top: 0;
  right: var(--site-align);
  bottom: 0;
  left: var(--site-align);
  background: url("../images/hero-bg-light.png") no-repeat left center / cover;
  pointer-events: none;
}

@media (min-width: 900px) {
  .hero::before,
  .page-header::before {
    background-position: right center;
  }
}

.hero-content,
.page-header .container {
  position: relative;
  z-index: 1;
  padding-left: calc(var(--site-gutter) + var(--hero-text-indent));
  text-align: left;
}

.hero-content {
  padding-top: 3.5rem;
  padding-bottom: 3rem;
}

.page-header .container {
  padding-top: 3rem;
  padding-bottom: 2rem;
}

@media (min-width: 900px) {
  .hero {
    min-height: 22rem;
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    min-height: 22rem;
    padding-top: 0;
    padding-bottom: 0;
  }
}

.hero-content h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.03em;
  line-height: 1.2;
  max-width: 20ch;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 42rem;
  margin: 0 0 1rem;
}

.hero-body {
  max-width: 42rem;
  margin: 0;
  color: var(--color-text);
}

/* Cards grid */
.card-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}

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

@media (min-width: 900px) {
  .card-grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  padding: 1.5rem;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.section--alt .card {
  background: var(--color-bg-surface);
}

.card-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 1rem;
  color: var(--color-navy);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-navy);
}

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

/* Domain list */
.domain-list {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

@media (min-width: 600px) {
  .domain-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.domain-list li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 1rem;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9375rem;
}

.section--alt .domain-list li {
  background: var(--color-bg-surface);
}

.domain-list svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-navy);
}

/* Blockquote */
blockquote {
  margin: 2rem 0 0;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--color-navy);
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-text-muted);
}

.section--alt blockquote {
  background: var(--color-bg-surface);
}

/* Teaser / PrimalGate */
.teaser {
  padding: 2rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-surface);
}

.section--alt .teaser {
  background: var(--color-bg-surface);
}

.teaser h3 {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
  color: var(--color-navy);
}

.teaser em {
  display: block;
  margin-top: 0.5rem;
  font-style: italic;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Page header (inner pages) */
.page-header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: -0.02em;
}

.page-header p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 40rem;
}

/* Service / experience sections */
.content-block {
  margin-bottom: 2.5rem;
}

.content-block:last-child {
  margin-bottom: 0;
}

.content-block h2 {
  margin: 0 0 0.75rem;
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-navy);
}

.content-block p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 42rem;
}

/* Philosophy list */
.bullet-list {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.bullet-list li {
  position: relative;
  padding: 0.5rem 0 0.5rem 1.5rem;
  color: var(--color-text-muted);
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.875rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-navy);
}

/* Working approach */
.approach-list {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: approach;
}

.approach-list li {
  counter-increment: approach;
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.approach-list li:last-child {
  border-bottom: none;
}

.approach-list li::before {
  content: counter(approach);
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-navy);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }
}

.contact-details {
  display: grid;
  gap: 1.25rem;
}

.contact-item {
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-surface);
}

.section--alt .contact-item {
  background: var(--color-bg-surface);
}

.contact-item dt {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.contact-item dd {
  margin: 0;
  font-weight: 500;
  color: var(--color-navy);
}

.contact-item dd a {
  color: var(--color-navy);
  text-decoration: none;
}

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

.placeholder-note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

/* Form */
.contact-form {
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-surface);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.375rem;
  font-weight: 500;
  font-size: 0.9375rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-surface);
  color: var(--color-text);
  transition: border-color 0.15s;
}

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

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #fff;
  background: var(--color-navy);
  border: 1px solid var(--color-navy);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
}

.btn:hover {
  background: var(--color-navy-dark);
}

.btn:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.form-message {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9375rem;
  display: none;
}

.form-message.is-visible {
  display: block;
}

.form-message--info {
  background: #f0f4f8;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: 3rem 0 2rem;
  background: var(--color-footer);
  color: rgba(255, 255, 255, 0.82);
}

.footer-inner {
  display: grid;
  gap: 2rem;
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 2.5rem;
  }

  .footer-lockup__logo {
    width: min(9.5rem, 42vw);
  }
}

.footer-brand strong {
  display: block;
  font-size: 1.125rem;
  color: #fff;
  margin-bottom: 0.25rem;
}

.footer-lockup {
  display: block;
  margin-bottom: 0.5rem;
  line-height: 0;
  text-decoration: none;
}

.footer-lockup:hover,
.footer-lockup:focus-visible {
  opacity: 0.9;
}

.footer-lockup__logo {
  display: block;
  width: min(8.5rem, 48vw);
  height: auto;
  max-width: none;
}

.footer-brand p {
  margin: 0 0 0.5rem;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.75);
}

.footer-brand .tagline {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.5rem;
}

.footer-nav h2,
.footer-social h2 {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.6);
}

.footer-nav ul,
.footer-social ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav li,
.footer-social li {
  margin-bottom: 0.375rem;
}

.footer-nav a,
.footer-social a {
  display: inline-block;
  padding: 0.15rem 0;
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  font-size: 0.9375rem;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-social-icon {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
}

.footer-nav a:hover,
.footer-social a:hover,
.footer-nav a:focus-visible,
.footer-social a:focus-visible {
  color: #fff;
  text-decoration: underline;
  text-decoration-color: rgba(160, 190, 230, 0.55);
  background: transparent;
  outline: none;
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-footer-border);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

/* Focus visible for keyboard users */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* Prose */
.prose p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
  max-width: 42rem;
}

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

.text-link {
  font-weight: 500;
}

.mt-lg {
  margin-top: 1.5rem;
}