/* ============================================================
   RICHARDSON RESOURCES — Main Stylesheet
   Brand: Navy #1C3A6B | Steel #8A9BB5 | Accent #2A6496
   Updated: 2025
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@300;400;500;600;700&family=Barlow+Condensed:wght@500;600;700&display=swap');

/* --- CSS Variables --- */
:root {
  --navy:        #1C3A6B;
  --navy-dark:   #122848;
  --navy-light:  #2A4F8A;
  --steel:       #8A9BB5;
  --steel-light: #C8D3E2;
  --steel-pale:  #EEF1F6;
  --accent:      #2A6496;
  --accent-light:#3A7AB0;
  --white:       #FFFFFF;
  --off-white:   #F7F9FC;
  --text-dark:   #1A2133;
  --text-mid:    #3D4F6B;
  --text-light:  #6A7A94;
  --border:      #DDE3EE;

  --font-main:   'Barlow', sans-serif;
  --font-display:'Barlow Condensed', sans-serif;

  --radius:      6px;
  --radius-lg:   12px;
  --shadow-sm:   0 2px 8px rgba(28,58,107,0.08);
  --shadow-md:   0 6px 24px rgba(28,58,107,0.12);
  --shadow-lg:   0 16px 48px rgba(28,58,107,0.16);

  --max-width:   1140px;
  --nav-height:  72px;
  --transition:  0.25s ease;
}

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

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

body {
  font-family: var(--font-main);
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--navy); }

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  color: var(--navy);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }

p { color: var(--text-mid); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul { list-style: none; }

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

.section {
  padding: 80px 0;
}

.section--alt {
  background: var(--off-white);
}

.section--navy {
  background: var(--navy);
}

.section--navy h1,
.section--navy h2,
.section--navy h3 { color: var(--white); }
.section--navy p { color: var(--steel-light); }

.section-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-header {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-header--center {
  text-align: center;
  margin: 0 auto 56px;
}

.section-header p {
  font-size: 1.1rem;
  margin-top: 12px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 13px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--white);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--border);
  padding: 11px 24px;
}
.btn-ghost:hover {
  border-color: var(--accent);
  background: var(--steel-pale);
  color: var(--navy);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav__logo img {
  height: 44px;
  width: auto;
}

.nav__logo-text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.01em;
  line-height: 1.1;
}

.nav__logo-text span {
  display: block;
  font-weight: 400;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-light);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__links a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mid);
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: all var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--navy);
  background: var(--steel-pale);
}

.nav__links a.btn-primary {
  color: var(--white);
  background: var(--accent);
  padding: 9px 18px;
}
.nav__links a.btn-primary:hover {
  background: var(--navy);
  color: var(--white);
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: all var(--transition);
}

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  padding: 16px 24px 24px;
  z-index: 99;
}

.nav__mobile.open { display: block; }

.nav__mobile a {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mid);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.nav__mobile a:last-child { border-bottom: none; }
.nav__mobile a:hover { color: var(--navy); }

/* ============================================================
   PAGE HERO
   ============================================================ */
.hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 80px;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 50%, var(--navy-light) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(42,100,150,0.3) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(138,155,181,0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero h1 { color: var(--white); }

.hero p {
  color: var(--steel-light);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 16px 0 32px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Page hero (inner pages) — smaller */
.page-hero {
  padding-top: calc(var(--nav-height) + 56px);
  padding-bottom: 56px;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 60%, var(--navy-light) 100%);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(42,100,150,0.25) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero h1 { color: var(--white); }
.page-hero p {
  color: var(--steel-light);
  font-size: 1.1rem;
  max-width: 560px;
  margin-top: 12px;
}

/* ============================================================
   HOME — WHO WE HELP PREVIEW
   ============================================================ */
.who-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.who-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.who-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--steel-light);
}

.who-card__icon {
  width: 48px;
  height: 48px;
  background: var(--steel-pale);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--accent);
  font-size: 1.4rem;
}

.who-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.who-card p { font-size: 0.95rem; }

/* ============================================================
   HOME — SERVICES PREVIEW
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--navy), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.service-card:hover::before { transform: scaleX(1); }

.service-card__num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--steel-light);
  line-height: 1;
  margin-bottom: 12px;
}

.service-card h3 { margin-bottom: 10px; }

.service-card ul {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.service-card li {
  font-size: 0.9rem;
  color: var(--text-light);
  padding-left: 14px;
  position: relative;
}
.service-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
}

/* ============================================================
   STATS BAR
   ============================================================ */
.stats-bar {
  background: var(--navy);
  padding: 40px 0;
}

.stats-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stat__num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1;
}

.stat__label {
  font-size: 0.85rem;
  color: var(--steel);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ============================================================
   TECH LOGOS
   ============================================================ */
.tech-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
  padding: 16px 0;
}

.tech-logos img {
  height: 36px;
  width: auto;
  opacity: 0.55;
  filter: grayscale(100%);
  transition: all var(--transition);
}

.tech-logos img:hover {
  opacity: 0.9;
  filter: grayscale(0%);
}

/* ============================================================
   ABOUT PREVIEW
   ============================================================ */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.about-split__visual {
  position: relative;
}

.about-split__img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-split__badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--accent);
  color: var(--white);
  padding: 18px 24px;
  border-radius: var(--radius-lg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  box-shadow: var(--shadow-md);
  text-align: center;
  line-height: 1.3;
}

.about-split__badge strong {
  display: block;
  font-size: 1.8rem;
  letter-spacing: 0;
  text-transform: none;
}

/* ============================================================
   CHECK LISTS
   ============================================================ */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 20px 0;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-mid);
}

.check-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy-light));
  padding: 72px 0;
  text-align: center;
}

.cta-band h2 { color: var(--white); margin-bottom: 16px; }
.cta-band p {
  color: var(--steel-light);
  font-size: 1.1rem;
  max-width: 520px;
  margin: 0 auto 32px;
}

/* ============================================================
   WHO WE HELP PAGE
   ============================================================ */
.client-types {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.client-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.client-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.client-card__tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--steel-pale);
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.client-card h3 { margin-bottom: 10px; }

.fit-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 8px;
}

.fit-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.5;
}

/* ============================================================
   SERVICES PAGE
   ============================================================ */
.service-section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border);
}

.service-section:last-of-type { border-bottom: none; }

.service-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  align-items: start;
}

.service-layout__aside {
  position: sticky;
  top: calc(var(--nav-height) + 24px);
}

.service-layout__aside h2 { margin-bottom: 12px; }

.service-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 16px;
}

.feature-item {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  font-size: 0.88rem;
  color: var(--text-mid);
  line-height: 1.5;
}

.feature-item strong {
  display: block;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 4px;
}

/* ============================================================
   PORTFOLIO PAGE
   ============================================================ */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.portfolio-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.portfolio-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.portfolio-card__thumb {
  height: 200px;
  background: var(--steel-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.portfolio-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-card__thumb-placeholder {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--steel-light);
}

.portfolio-card__body { padding: 24px; }
.portfolio-card__body h3 { font-size: 1.1rem; margin-bottom: 6px; }
.portfolio-card__body p { font-size: 0.88rem; margin-bottom: 16px; }

.portfolio-card__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--steel-pale);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 10px;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--white);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-item h4 { margin-bottom: 4px; }
.timeline-item p { font-size: 0.92rem; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.skill-pill {
  background: var(--steel-pale);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--text-mid);
}

.skill-pill strong {
  display: block;
  color: var(--navy);
  font-weight: 600;
  margin-bottom: 2px;
}

/* ============================================================
   CONTACT / FOOTER
   ============================================================ */
.contact-split {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 { margin-bottom: 24px; }

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.contact-detail__icon {
  width: 40px;
  height: 40px;
  background: var(--steel-pale);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-detail__text strong {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-light);
  margin-bottom: 2px;
}

.contact-detail__text a,
.contact-detail__text span {
  font-size: 0.95rem;
  color: var(--text-dark);
}

/* Contact Form */
.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

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

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: var(--text-dark);
  background: var(--off-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42,100,150,0.1);
  background: var(--white);
}

.form-group textarea {
  height: 130px;
  resize: vertical;
}

/* Footer */
.footer {
  background: var(--navy-dark);
  padding: 40px 0 24px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__brand img {
  height: 38px;
  width: auto;
  margin-bottom: 14px;
  opacity: 0.9;
}

.footer__brand p {
  font-size: 0.88rem;
  color: var(--steel);
  max-width: 300px;
}

.footer__col h4 {
  color: var(--white);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__col a {
  font-size: 0.88rem;
  color: var(--steel);
  transition: color var(--transition);
}

.footer__col a:hover { color: var(--white); }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  font-size: 0.8rem;
  color: var(--steel);
  flex-wrap: wrap;
  gap: 8px;
}

.footer__bottom a { color: var(--steel); }
.footer__bottom a:hover { color: var(--white); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }

  .who-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .about-split { grid-template-columns: 1fr; gap: 40px; }
  .about-split__badge { bottom: 16px; right: 16px; }
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); }
  .client-types { grid-template-columns: 1fr; }
  .fit-list { grid-template-columns: 1fr; }
  .service-layout { grid-template-columns: 1fr; gap: 32px; }
  .service-layout__aside { position: static; }
  .service-features { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-split { grid-template-columns: 1fr; gap: 40px; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 600px) {
  .section { padding: 56px 0; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .skills-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}