/* ========================================
   Technology Artisans — Global Styles
   ======================================== */

:root {
  /* Primary palette — matched to brand logo */
  --color-primary: #2b2b2b;
  --color-primary-light: #444444;
  --color-accent: #e8912d;
  --color-accent-light: #f0a648;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f7f5;
  --color-border: #e0ddd8;
  --color-white: #ffffff;

  /* Typography */
  --font-heading: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing */
  --section-padding: 5rem 0;
  --container-width: 1100px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s;
}

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

/* ---- Layout ---- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: var(--section-padding);
}

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

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.25;
}

h1 { font-size: 2.75rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 0.75rem; }
h3 { font-size: 1.35rem; margin-bottom: 0.5rem; }

.section-subtitle {
  color: var(--color-text-light);
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 3rem;
}

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

.text-center .section-subtitle {
  margin-left: auto;
  margin-right: auto;
}

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

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-logo img {
  height: 60px;
  width: auto;
}


.nav-logo:hover {
  color: var(--color-primary);
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2rem;
}

nav ul li a {
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

nav ul li a:hover,
nav ul li a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  margin: 5px 0;
  transition: 0.3s;
}

/* ---- Hero ---- */
.hero {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 6rem 0;
}

.hero h1 {
  color: var(--color-white);
  font-size: 3rem;
  max-width: 700px;
}

.hero p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.2rem;
  max-width: 600px;
  margin-bottom: 2rem;
}

.hero .accent {
  color: var(--color-accent);
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: background 0.2s, transform 0.1s;
  cursor: pointer;
  border: none;
}

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

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

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

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

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

/* ---- Cards / Grid ---- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

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

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 2rem;
  transition: box-shadow 0.2s;
}

.card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-bg-alt);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
  font-size: 1.5rem;
}

.card h3 {
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

/* ---- Case Study Cards ---- */
.case-study-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
  transition: box-shadow 0.2s;
}

.case-study-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.case-study-header {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 1.5rem 2rem;
}

.case-study-header .industry-tag {
  display: inline-block;
  background: rgba(201, 149, 60, 0.2);
  color: var(--color-accent-light);
  padding: 0.2rem 0.75rem;
  border-radius: 3px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.case-study-header h3 {
  color: var(--color-white);
  margin-bottom: 0;
}

.case-study-body {
  padding: 2rem;
}

.case-study-body h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  margin-top: 1.25rem;
}

.case-study-body h4:first-child {
  margin-top: 0;
}

.case-study-body p,
.case-study-body ul {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.case-study-body ul {
  padding-left: 1.25rem;
  margin-top: 0.25rem;
}

.case-study-body ul li {
  margin-bottom: 0.25rem;
}

/* ---- About / Bio ---- */
.bio-section {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}

.bio-photo {
  flex-shrink: 0;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 3px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 3rem;
}

.bio-content h2 {
  margin-bottom: 0.25rem;
}

.bio-role {
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 1rem;
}

.bio-content p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

/* ---- Values List ---- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.value-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.value-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.1rem;
}

.value-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.value-item p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

/* ---- Contact Form ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

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

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--color-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-info h3 {
  margin-bottom: 1rem;
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

.contact-detail .icon {
  color: var(--color-accent);
  font-size: 1.1rem;
}

/* ---- Footer ---- */
footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 3rem 0 1.5rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .nav-logo {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.footer-brand .nav-logo img {
  height: 55px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 0.9rem;
}

.footer-links h4 {
  color: var(--color-white);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.footer-links ul {
  list-style: none;
}

.footer-links ul li {
  margin-bottom: 0.4rem;
}

.footer-links ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-links ul li a:hover {
  color: var(--color-accent-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
}

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

/* ---- Page Header (inner pages) ---- */
.page-header {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 3.5rem 0;
}

.page-header h1 {
  color: var(--color-white);
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.page-header p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.1rem;
  max-width: 600px;
}

/* ---- Privacy Policy ---- */
.legal-content {
  max-width: 800px;
}

.legal-content h2 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

.legal-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

.legal-content ul li {
  margin-bottom: 0.35rem;
}

/* ---- CTA Banner ---- */
.cta-banner {
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  padding: 4rem 0;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

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

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .bio-section {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

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

  .footer-inner {
    flex-direction: column;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .grid-4 {
    grid-template-columns: 1fr;
  }

  h1 { font-size: 2rem; }
  .hero h1 { font-size: 2.25rem; }
  .hero { padding: 4rem 0; }

  nav ul {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    gap: 0;
  }

  nav ul.open {
    display: flex;
  }

  nav ul li a {
    display: block;
    padding: 0.75rem 0;
  }

  .nav-toggle {
    display: block;
  }
}