/* =============================================
   SMITHSONIAN RECRUITMENT — STYLES
   Apple-inspired: clean, flat, black & white
   ============================================= */

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

:root {
  --black:    #000000;
  --white:    #ffffff;
  --gray-100: #f5f5f7;
  --gray-200: #e8e8ed;
  --gray-400: #86868b;
  --gray-600: #515154;
  --gray-900: #1d1d1f;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Helvetica, Arial, sans-serif;
  --nav-h: 52px;
  --max-w: 1080px;
  --section-pad: 100px 24px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--gray-900);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; border: none; background: none; }

/* ─── TYPOGRAPHY ─────────────────────────── */
h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
  color: var(--gray-900);
}

h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--gray-900);
}

h3 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--gray-900);
}

h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--gray-900);
}

p { color: var(--gray-600); }

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
  display: block;
}
.eyebrow.light { color: rgba(255,255,255,0.5); }

.section-sub {
  font-size: 19px;
  color: var(--gray-600);
  max-width: 600px;
  margin-top: 20px;
  line-height: 1.55;
}

.dark-section .section-sub { color: rgba(255,255,255,0.55); }
.dark-section h2 { color: var(--white); }
.dark-section p { color: rgba(255,255,255,0.65); }

/* ─── LAYOUT ──────────────────────────────── */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--section-pad);
}

.dark-section {
  background: var(--black);
}

/* ─── BUTTONS ────────────────────────────── */
.btn-primary {
  display: inline-block;
  background: var(--black);
  color: var(--white);
  padding: 14px 28px;
  border-radius: 980px;
  font-size: 15px;
  font-weight: 500;
  transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.75; }
.btn-primary.full-width {
  width: 100%;
  text-align: center;
  border-radius: 12px;
  padding: 16px;
  font-size: 16px;
}

.dark-section .btn-primary {
  background: var(--white);
  color: var(--black);
}

.btn-ghost {
  display: inline-block;
  color: var(--gray-900);
  font-size: 15px;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: 980px;
  border: 1.5px solid var(--gray-200);
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { border-color: var(--gray-400); }

/* ─── NAV ────────────────────────────────── */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
  transition: background 0.3s;
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  font-size: 13px;
  font-weight: 400;
  color: var(--gray-600);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--black); }

.nav-cta {
  background: var(--black) !important;
  color: var(--white) !important;
  padding: 8px 18px;
  border-radius: 980px;
  font-size: 13px !important;
  font-weight: 500 !important;
  transition: opacity 0.2s !important;
}
.nav-cta:hover { opacity: 0.75 !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--gray-900);
  transition: 0.3s;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  padding: 16px 24px 24px;
  gap: 4px;
}
.mobile-menu a {
  font-size: 16px;
  font-weight: 400;
  color: var(--gray-900);
  padding: 10px 0;
  border-bottom: 1px solid var(--gray-200);
}
.mobile-menu.open { display: flex; }

/* ─── HERO ───────────────────────────────── */
#hero {
  padding-top: calc(var(--nav-h) + 80px);
  padding-bottom: 100px;
  padding-left: 24px;
  padding-right: 24px;
  background: var(--white);
  text-align: center;
}

.hero-inner {
  max-width: 800px;
  margin: 0 auto;
}

.hero-inner h1 { margin-bottom: 24px; }

.hero-sub {
  font-size: 19px;
  color: var(--gray-600);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ─── STATS ──────────────────────────────── */
#stats {
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  background: var(--gray-100);
}

.stats-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 48px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 40px;
  text-align: center;
}

.stat-num {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--black);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 12px;
  color: var(--gray-400);
  font-weight: 500;
  letter-spacing: 0.01em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--gray-200);
  flex-shrink: 0;
}

/* ─── ABOUT ──────────────────────────────── */
#about { background: var(--white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 80px;
  align-items: start;
}

.about-text h2 { margin-bottom: 28px; }
.about-text p { margin-bottom: 18px; font-size: 17px; }

.about-tag {
  font-weight: 500;
  color: var(--gray-900) !important;
  font-style: italic;
  margin-top: 8px;
}

.about-credentials {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.credential {
  padding: 16px 20px;
  border: 1px solid var(--gray-200);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cred-school {
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
}
.cred-detail {
  font-size: 13px;
  color: var(--gray-400);
}

.about-card {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  background: var(--gray-100);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.about-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-initials {
  font-size: 26px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.about-card-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.about-card-info strong {
  font-size: 17px;
  font-weight: 600;
  color: var(--gray-900);
}

.about-card-info span {
  font-size: 13px;
  color: var(--gray-400);
}

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-900);
  border: 1.5px solid var(--gray-200);
  padding: 10px 18px;
  border-radius: 980px;
  transition: border-color 0.2s, background 0.2s;
  margin-top: 4px;
}
.linkedin-link:hover {
  border-color: var(--gray-900);
  background: var(--white);
}

/* ─── SERVICES ───────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin-top: 60px;
  border-radius: 16px;
  overflow: hidden;
}

.service-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 40px 36px;
  transition: background 0.2s;
}
.service-card:hover { background: rgba(255,255,255,0.1); }

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--white);
}

.service-card h3 { color: var(--white); margin-bottom: 6px; }

.service-tag {
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.35) !important;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.service-card p { font-size: 15px; margin-bottom: 14px; color: rgba(255,255,255,0.6); }

.service-fit {
  font-size: 14px !important;
  color: rgba(255,255,255,0.4) !important;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 14px;
  margin-bottom: 0 !important;
}
.service-fit strong { color: rgba(255,255,255,0.6) !important; }

/* ─── INDUSTRIES ─────────────────────────── */
#industries { background: var(--white); }

.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 60px;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  overflow: hidden;
}

.industry-card {
  padding: 32px 28px;
  border: 1px solid var(--gray-200);
  background: var(--white);
  transition: background 0.2s;
}
.industry-card:hover { background: var(--gray-100); }

.industry-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--black);
  margin-bottom: 16px;
}

.industry-card h4 { margin-bottom: 10px; font-size: 16px; }
.industry-card p { font-size: 14px; line-height: 1.55; }

/* ─── WHY ────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px 64px;
  margin-top: 60px;
}

.why-item { display: flex; flex-direction: column; gap: 10px; }

.why-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.25);
  font-variant-numeric: tabular-nums;
}

.why-item h4 {
  color: var(--white);
  font-size: 18px;
  font-weight: 600;
}

.why-item p { font-size: 15px; color: rgba(255,255,255,0.55); }

/* ─── TESTIMONIALS ───────────────────────── */
#testimonials { background: var(--gray-100); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 60px;
}

.testimonial-card {
  background: var(--white);
  border-radius: 16px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.testimonial-card.featured {
  background: var(--black);
  grid-column: span 2;
}

.testimonial-card.featured .quote { color: var(--white); }
.testimonial-card.featured .attr-dot { background: var(--white); }
.testimonial-card.featured strong { color: var(--white); }
.testimonial-card.featured span { color: rgba(255,255,255,0.5); }

.quote {
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-900);
  font-style: italic;
  flex: 1;
}

.testimonial-attr {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
}

.testimonial-card.featured .testimonial-attr {
  border-top-color: rgba(255,255,255,0.1);
}

.attr-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gray-200);
  flex-shrink: 0;
}

.testimonial-attr strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 2px;
}

.testimonial-attr span {
  font-size: 12px;
  color: var(--gray-400);
}

/* ─── CONTACT ────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-text h2 { color: var(--white); margin-bottom: 24px; }
.contact-text > p { font-size: 17px; color: rgba(255,255,255,0.6); margin-bottom: 36px; }

.contact-details { display: flex; flex-direction: column; gap: 16px; margin-bottom: 32px; }

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.7);
  font-size: 14px;
}

.contact-item svg { flex-shrink: 0; opacity: 0.5; }
.contact-item a { color: rgba(255,255,255,0.7); transition: color 0.2s; }
.contact-item a:hover { color: var(--white); }

.contact-note {
  font-size: 13px;
  color: rgba(255,255,255,0.35) !important;
  line-height: 1.5;
}

/* ─── FORM ───────────────────────────────── */
.contact-form-wrap {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 36px 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--white);
  font-size: 15px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: rgba(255,255,255,0.4);
}

.form-group select option { background: #1a1a1a; color: var(--white); }
.form-group textarea { resize: vertical; min-height: 100px; }

.dark-section .btn-primary.full-width {
  background: var(--white);
  color: var(--black);
}

.form-success {
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(255,255,255,0.08);
  border-radius: 10px;
  color: rgba(255,255,255,0.8);
  font-size: 14px;
  text-align: center;
}

/* ─── FOOTER ─────────────────────────────── */
footer {
  background: var(--gray-100);
  border-top: 1px solid var(--gray-200);
  padding: 48px 24px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 24px 40px;
  align-items: start;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-logo {
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-900);
}

.footer-tagline {
  font-size: 13px;
  color: var(--gray-400);
}

.footer-right {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-right a {
  font-size: 13px;
  color: var(--gray-400);
  transition: color 0.2s;
}
.footer-right a:hover { color: var(--gray-900); }

.footer-copy {
  grid-column: 1 / -1;
  font-size: 12px;
  color: var(--gray-400);
  border-top: 1px solid var(--gray-200);
  padding-top: 24px;
}

/* ─── RESPONSIVE ─────────────────────────── */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-aside { position: static; }
  .about-card { flex-direction: row; text-align: left; }
  .services-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; gap: 32px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .testimonial-card.featured { grid-column: span 1; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .form-row { grid-template-columns: 1fr; }
  .stat-divider { display: none; }
  .stat { padding: 16px 24px; }
}

@media (max-width: 700px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .industries-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-right { justify-content: flex-start; }
  .about-card { flex-direction: column; text-align: center; }
  :root { --section-pad: 64px 20px; }
}

/* ─── SCROLL ANIMATIONS ──────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].visible {
  opacity: 1;
  transform: none;
}