/* ══════════════════════════════════════════════════════════════
   SD-Agile — styles.css
   Engineering Discipline for the AI Era
   ══════════════════════════════════════════════════════════════ */

/* ── CUSTOM PROPERTIES ── */
:root {
  --navy: #0B1929;
  --navy-mid: #112340;
  --navy-light: #1a3352;
  --teal: #00B4D8;
  --teal-dim: #0090ac;
  --amber: #F4A22D;
  --amber-dim: #c47f15;
  --red-alert: #E84040;
  --off-white: #EDF2F7;
  --muted: #8FA3B8;
  --text-body: #CBD5E0;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --focus-ring: 0 0 0 3px rgba(0,180,216,0.5);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--navy);
  color: var(--text-body);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── ACCESSIBILITY: Skip Navigation ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--teal);
  color: var(--navy);
  padding: 0.75rem 1.5rem;
  border-radius: 0 0 4px 4px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  z-index: 200;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* ── ACCESSIBILITY: Focus Styles ── */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

/* Visually hidden but screen-reader accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ══════════════════════════════════════════════════════════════
   NAV
   ══════════════════════════════════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 4rem;
  background: rgba(11,25,41,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,180,216,0.12);
}
.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.45rem;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.01em;
}
.nav-logo span { color: var(--teal); }
.nav-links { display: flex; gap: 2.2rem; align-items: center; }
.nav-links a {
  color: var(--muted); text-decoration: none;
  font-size: 0.88rem; font-weight: 500; letter-spacing: 0.04em;
  text-transform: uppercase; transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a:focus-visible { color: var(--teal); }
.nav-cta {
  background: var(--amber); color: var(--navy) !important;
  padding: 0.55rem 1.4rem; border-radius: 4px;
  font-weight: 600 !important; text-transform: none !important;
  letter-spacing: 0 !important; transition: background 0.2s !important;
}
.nav-cta:hover { background: var(--amber-dim) !important; color: var(--navy) !important; }

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column; justify-content: center;
  gap: 5px; cursor: pointer; padding: 6px;
  background: none; border: none;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--off-white);
  border-radius: 2px;
  transition: all 0.25s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed; top: 62px; left: 0; right: 0;
  background: rgba(11,25,41,0.98);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0,180,216,0.15);
  padding: 1.5rem 2rem 2rem;
  z-index: 99;
  flex-direction: column; gap: 0;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: var(--text-body); text-decoration: none;
  font-size: 1rem; font-weight: 500;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color 0.2s;
}
.mobile-menu a:last-child { border-bottom: none; margin-top: 0.5rem; }
.mobile-menu a:hover { color: var(--teal); }
.mobile-menu .m-cta {
  margin-top: 1rem;
  background: var(--amber); color: var(--navy) !important;
  padding: 0.8rem 1.5rem; border-radius: 4px;
  text-align: center; font-weight: 600;
}
.mobile-menu .m-cta:hover { background: var(--amber-dim) !important; }

/* ══════════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 9rem 4rem 5rem;
  position: relative;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 65% 40%, rgba(0,180,216,0.09) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 20% 70%, rgba(244,162,45,0.06) 0%, transparent 60%),
    linear-gradient(160deg, #0B1929 0%, #0d2035 50%, #0B1929 100%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: 0.04;
  background-image:
    linear-gradient(rgba(0,180,216,0.8) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,180,216,0.8) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content { position: relative; z-index: 2; max-width: 900px; }
.hero-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem; color: var(--teal);
  letter-spacing: 0.18em; text-transform: uppercase;
  margin-bottom: 1.5rem;
  display: flex; align-items: center; gap: 0.8rem;
}
.hero-eyebrow::before {
  content: ''; display: block; width: 40px; height: 1px;
  background: var(--teal);
}
h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(3rem, 7vw, 5.5rem);
  color: #fff;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 1.8rem;
}
h1 em { color: var(--teal); font-style: normal; }
.hero-sub {
  font-size: 1.18rem; color: var(--text-body);
  max-width: 640px; margin-bottom: 3rem; line-height: 1.8;
  font-weight: 300;
}
.hero-sub strong { color: var(--off-white); font-weight: 500; }
.hero-actions { display: flex; gap: 1.2rem; flex-wrap: wrap; }
.btn-primary {
  background: var(--amber); color: var(--navy);
  padding: 0.9rem 2.2rem; border-radius: 4px;
  font-weight: 600; font-size: 0.95rem;
  text-decoration: none; border: none; cursor: pointer;
  transition: all 0.2s; display: inline-block;
  letter-spacing: 0.01em;
}
.btn-primary:hover { background: var(--amber-dim); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--off-white);
  padding: 0.9rem 2.2rem; border-radius: 4px;
  font-weight: 500; font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.2);
  transition: all 0.2s; display: inline-block;
}
.btn-outline:hover { border-color: var(--teal); color: var(--teal); }

.hero-stat-row {
  position: relative; z-index: 2;
  display: flex; gap: 3rem; margin-top: 5rem;
  padding-top: 2.5rem;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.hero-stat strong {
  display: block;
  font-family: 'DM Serif Display', serif;
  font-size: 2.4rem; color: var(--amber);
  line-height: 1;
}
.hero-stat span {
  font-size: 0.82rem; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.06em;
}

/* ══════════════════════════════════════════════════════════════
   SECTION COMMONS
   ══════════════════════════════════════════════════════════════ */
section { padding: 6rem 4rem; }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; letter-spacing: 0.2em;
  color: var(--teal); text-transform: uppercase;
  margin-bottom: 1rem;
}
h2 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  color: #fff; line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.2rem;
}
h2 em { color: var(--teal); font-style: normal; }
.section-lead {
  font-size: 1.05rem; color: var(--muted);
  max-width: 620px; line-height: 1.8;
  margin-bottom: 3.5rem;
}

/* ══════════════════════════════════════════════════════════════
   PROBLEM
   ══════════════════════════════════════════════════════════════ */
.problem { background: #080f1a; }
.problem-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5px; background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 8px; overflow: hidden;
  margin-top: 3rem;
}
.problem-card {
  background: #0d1f33;
  padding: 2.5rem 2rem;
}
.problem-icon {
  width: 44px; height: 44px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 1.4rem;
}
.p-red .problem-icon { background: rgba(232,64,64,0.15); }
.p-amber .problem-icon { background: rgba(244,162,45,0.15); }
.p-teal .problem-icon { background: rgba(0,180,216,0.12); }
.problem-card h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem; color: #fff;
  margin-bottom: 0.7rem;
}
.problem-card p { font-size: 0.9rem; color: var(--muted); line-height: 1.7; }
.problem-bottom {
  margin-top: 2rem;
  padding: 1.4rem 2rem;
  border: 1px solid rgba(232,64,64,0.3);
  border-radius: 6px;
  background: rgba(232,64,64,0.05);
}
.problem-bottom p {
  font-family: 'DM Serif Display', serif;
  font-style: italic; color: var(--off-white);
  font-size: 1.05rem; text-align: center;
}
.problem-bottom strong { color: var(--red-alert); font-style: normal; }

/* ══════════════════════════════════════════════════════════════
   INVERSION
   ══════════════════════════════════════════════════════════════ */
.inversion { background: var(--navy); }
.inversion-split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2px; border-radius: 8px; overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  margin-top: 3rem;
}
.inv-col { padding: 2.8rem 2.5rem; }
.inv-old { background: rgba(232,64,64,0.07); }
.inv-new { background: rgba(0,180,216,0.07); }
.inv-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; letter-spacing: 0.18em;
  text-transform: uppercase; margin-bottom: 1.5rem;
}
.inv-old .inv-label { color: var(--red-alert); }
.inv-new .inv-label { color: var(--teal); }
.inv-col h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.3rem; color: #fff; margin-bottom: 1.4rem;
}
.inv-list { list-style: none; }
.inv-list li {
  padding: 0.65rem 0;
  font-size: 0.9rem; color: var(--muted);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: flex; align-items: center; gap: 0.8rem;
}
.inv-list li:last-child { border-bottom: none; }
.inv-old .inv-list li::before { content: '\2717'; color: var(--red-alert); font-size: 0.85rem; }
.inv-new .inv-list li::before { content: '\2713'; color: var(--teal); font-size: 0.85rem; }
.inversion-axiom {
  margin-top: 2rem; text-align: center;
  font-family: 'DM Serif Display', serif;
  font-style: italic; font-size: 1.1rem; color: var(--off-white);
}

/* ══════════════════════════════════════════════════════════════
   METHOD
   ══════════════════════════════════════════════════════════════ */
.method { background: #080f1a; }
.method-flow {
  display: flex; align-items: stretch; gap: 0;
  margin-top: 3rem; overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.flow-step {
  flex: 1; min-width: 180px;
  padding: 2rem 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 6px; margin: 0 0.4rem;
  position: relative;
}
.flow-step:first-child { margin-left: 0; }
.flow-step:last-child { margin-right: 0; }
.flow-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem; color: var(--amber);
  letter-spacing: 0.12em; margin-bottom: 0.8rem;
}
.flow-step h4 {
  font-family: 'DM Serif Display', serif;
  font-size: 0.98rem; color: #fff;
  margin-bottom: 0.6rem; line-height: 1.3;
}
.flow-step p { font-size: 0.82rem; color: var(--muted); line-height: 1.6; }
.flow-arrow {
  display: flex; align-items: center;
  color: var(--teal); font-size: 1.2rem;
  padding: 0 0.2rem; flex-shrink: 0;
  align-self: center;
}

.method-cards {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1.5rem; margin-top: 3.5rem;
}
.method-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px; padding: 2.2rem 2rem;
  transition: border-color 0.2s, transform 0.2s;
}
.method-card:hover { border-color: rgba(0,180,216,0.3); transform: translateY(-2px); }
.method-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem; letter-spacing: 0.14em;
  color: var(--teal); text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.method-card h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem; color: #fff;
  margin-bottom: 0.8rem;
}
.method-card p { font-size: 0.88rem; color: var(--muted); line-height: 1.7; }
.method-card .card-axiom {
  margin-top: 1.2rem; padding-top: 1.2rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 0.82rem; color: var(--off-white);
  font-style: italic;
}

/* ══════════════════════════════════════════════════════════════
   PLATFORM
   ══════════════════════════════════════════════════════════════ */
.platform { background: var(--navy); }
.platform-pipeline {
  display: flex; align-items: center; gap: 0;
  background: var(--navy-mid);
  border: 1px solid var(--card-border);
  border-radius: 8px; padding: 2rem 2.5rem;
  margin: 2.5rem 0; overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.pipe-node {
  flex: 1; min-width: 130px; text-align: center; padding: 0 0.8rem;
}
.pipe-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: rgba(0,180,216,0.12);
  border: 1px solid rgba(0,180,216,0.25);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 0.8rem; font-size: 1.2rem;
}
.pipe-node h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem; color: #fff;
  line-height: 1.4;
}
.pipe-arrow { color: var(--amber); font-size: 1.1rem; padding: 0 0.4rem; flex-shrink: 0; }
.corridor-banner {
  background: rgba(0,180,216,0.07);
  border: 1px solid rgba(0,180,216,0.2);
  border-radius: 6px; padding: 1.2rem 2rem;
  display: flex; align-items: center; gap: 1rem; margin-top: 1.5rem;
}
.corridor-banner .c-icon { font-size: 1.4rem; }
.corridor-banner p {
  font-size: 0.9rem; color: var(--off-white);
  font-weight: 500;
}
.corridor-banner p span { color: var(--teal); }
.platform-features {
  display: grid; grid-template-columns: repeat(2,1fr);
  gap: 1.2rem; margin-top: 2.5rem;
}
.pf-item {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1.4rem;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 6px;
}
.pf-icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(244,162,45,0.12);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 1rem;
}
.pf-item h5 { font-size: 0.9rem; color: #fff; margin-bottom: 0.3rem; }
.pf-item p { font-size: 0.82rem; color: var(--muted); line-height: 1.6; }

/* ══════════════════════════════════════════════════════════════
   FEDERAL
   ══════════════════════════════════════════════════════════════ */
.federal { background: linear-gradient(135deg, #0B1929 0%, #0d2236 100%); }
.federal-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: start; margin-top: 2rem;
}
.fed-points { display: flex; flex-direction: column; gap: 1.2rem; margin-top: 2rem; }
.fed-point {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1.2rem 1.5rem;
  background: rgba(0,180,216,0.05);
  border-left: 3px solid var(--teal);
  border-radius: 0 6px 6px 0;
}
.fed-point p { font-size: 0.9rem; color: var(--text-body); line-height: 1.6; }
.fed-point strong { color: var(--off-white); }
.fed-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
  margin-top: 1rem;
}
.fed-stat {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 8px; padding: 1.8rem 1.5rem; text-align: center;
}
.fed-stat strong {
  display: block;
  font-family: 'DM Serif Display', serif;
  font-size: 2.5rem; line-height: 1;
  margin-bottom: 0.5rem;
}
.fed-stat.s-red strong { color: var(--red-alert); }
.fed-stat.s-amber strong { color: var(--amber); }
.fed-stat.s-teal strong { color: var(--teal); }
.fed-stat span { font-size: 0.78rem; color: var(--muted); }

/* ══════════════════════════════════════════════════════════════
   CERTIFICATION
   ══════════════════════════════════════════════════════════════ */
.certification { background: #080f1a; }
.cert-tracks {
  display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1.5rem; margin-top: 3rem;
}
.cert-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px; padding: 2.2rem 2rem;
  display: flex; flex-direction: column;
}
.cert-level {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem; letter-spacing: 0.14em;
  color: var(--muted); text-transform: uppercase;
  margin-bottom: 0.6rem;
}
.cert-card h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.1rem; color: #fff; margin-bottom: 1rem;
  line-height: 1.3;
}
.cert-card p { font-size: 0.87rem; color: var(--muted); line-height: 1.7; flex: 1; }
.cert-price {
  margin-top: 1.5rem; padding-top: 1.2rem;
  border-top: 1px solid rgba(255,255,255,0.07);
  display: flex; align-items: baseline; gap: 0.4rem;
}
.cert-price strong {
  font-family: 'DM Serif Display', serif;
  font-size: 1.8rem; color: var(--amber);
}
.cert-price span { font-size: 0.8rem; color: var(--muted); }
.cert-badge {
  display: inline-block; margin-top: 0.8rem;
  padding: 0.3rem 0.8rem; border-radius: 3px;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase;
}
.cert-badge.free { background: rgba(0,180,216,0.15); color: var(--teal); }
.cert-badge.gov { background: rgba(244,162,45,0.15); color: var(--amber); }
.cert-note {
  margin-top: 2.5rem; text-align: center;
  font-size: 0.88rem; color: var(--muted);
}
.cert-note a { color: var(--teal); text-decoration: none; }

/* ══════════════════════════════════════════════════════════════
   ABOUT
   ══════════════════════════════════════════════════════════════ */
.about { background: var(--navy); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; margin-top: 2rem;
}
.about-text p {
  font-size: 0.95rem; color: var(--muted); line-height: 1.8;
  margin-bottom: 1rem;
}
.about-text p strong { color: var(--off-white); }
.ha-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--teal); text-decoration: none; font-size: 0.88rem;
  margin-top: 1rem; font-weight: 500;
  transition: gap 0.2s;
}
.ha-link:hover { gap: 0.9rem; }
.team { display: flex; flex-direction: column; gap: 2rem; }
.team-member {
  display: flex; gap: 1.5rem; align-items: flex-start;
  padding: 1.8rem;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: 8px;
}
.member-photo {
  width: 80px; height: 80px; border-radius: 50%;
  flex-shrink: 0; overflow: hidden;
  border: 2px solid rgba(0,180,216,0.3);
}
.member-photo img { width: 100%; height: 100%; object-fit: cover; }
.member-placeholder {
  width: 80px; height: 80px; border-radius: 50%;
  flex-shrink: 0;
  background: rgba(0,180,216,0.1);
  border: 2px dashed rgba(0,180,216,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; color: var(--teal);
}
.member-info h4 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.05rem; color: #fff; margin-bottom: 0.2rem;
}
.member-role {
  font-size: 0.78rem; color: var(--teal);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-bottom: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
}
.member-info p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; }
.member-linkedin {
  display: inline-flex; align-items: center; gap: 0.4rem;
  color: var(--teal); text-decoration: none; font-size: 0.8rem;
  margin-top: 0.6rem;
}
.photo-note {
  font-size: 0.72rem; color: var(--muted);
  font-style: italic; margin-top: 0.4rem;
}

/* ══════════════════════════════════════════════════════════════
   WAITLIST FORM
   ══════════════════════════════════════════════════════════════ */
.waitlist-section { padding: 5rem 4rem; background: #080f1a; }
.waitlist {
  background: var(--navy-mid);
  border: 1px solid rgba(0,180,216,0.2);
  border-radius: 10px;
  padding: 3rem 2.5rem;
  max-width: 600px; margin: 0 auto;
}
.waitlist h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.5rem; color: #fff;
  margin-bottom: 0.6rem;
}
.waitlist p { font-size: 0.9rem; color: var(--muted); margin-bottom: 2rem; line-height: 1.7; }
.form-row { display: flex; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.form-group { flex: 1; min-width: 200px; display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.78rem; color: var(--muted); letter-spacing: 0.06em;
  text-transform: uppercase; font-family: 'JetBrains Mono', monospace;
}
.form-group input,
.form-group select {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px;
  padding: 0.75rem 1rem;
  color: var(--off-white);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
  -webkit-appearance: none;
}
.form-group input::placeholder { color: var(--muted); }
.form-group input:focus,
.form-group select:focus { border-color: var(--teal); }
.form-group select option { background: var(--navy-mid); color: var(--off-white); }
.form-submit {
  width: 100%; margin-top: 0.5rem;
  background: var(--amber); color: var(--navy);
  border: none; border-radius: 4px;
  padding: 0.9rem; font-size: 0.95rem;
  font-weight: 600; font-family: 'DM Sans', sans-serif;
  cursor: pointer; transition: background 0.2s;
}
.form-submit:hover { background: var(--amber-dim); }
.form-success {
  display: none;
  text-align: center; padding: 2rem;
}
.form-success .check { font-size: 2.5rem; margin-bottom: 0.8rem; }
.form-success h4 { font-family: 'DM Serif Display', serif; font-size: 1.3rem; color: #fff; margin-bottom: 0.5rem; }
.form-success p { font-size: 0.9rem; color: var(--muted); }

/* ══════════════════════════════════════════════════════════════
   CTA BAND
   ══════════════════════════════════════════════════════════════ */
.cta-band {
  background: linear-gradient(135deg, var(--navy-mid) 0%, #0f2840 100%);
  border-top: 1px solid rgba(0,180,216,0.2);
  border-bottom: 1px solid rgba(0,180,216,0.2);
  padding: 5rem 4rem; text-align: center;
}
.cta-band h2 { margin-bottom: 1rem; }
.cta-band p { color: var(--muted); max-width: 560px; margin: 0 auto 2.5rem; font-size: 1rem; }
.cta-band .hero-actions { justify-content: center; }

/* ══════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════ */
footer {
  background: #070e1a;
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 3rem 4rem 2rem;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 3rem; flex-wrap: wrap;
}
.footer-brand .nav-logo { font-size: 1.2rem; }
.footer-brand p { font-size: 0.82rem; color: var(--muted); margin-top: 0.5rem; max-width: 260px; line-height: 1.6; }
.footer-links h6 {
  font-size: 0.72rem; color: var(--muted);
  letter-spacing: 0.12em; text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-links a {
  display: block; color: var(--text-body);
  text-decoration: none; font-size: 0.85rem;
  margin-bottom: 0.5rem; transition: color 0.2s;
}
.footer-links a:hover { color: var(--teal); }
.footer-bottom {
  max-width: 1100px; margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.05);
  display: flex; justify-content: space-between;
  font-size: 0.78rem; color: var(--muted);
}
.footer-bottom a { color: var(--muted); text-decoration: none; }
.footer-bottom a:hover { color: var(--teal); }

/* ══════════════════════════════════════════════════════════════
   STAT CITATIONS
   ══════════════════════════════════════════════════════════════ */
.stat-cite {
  color: var(--teal);
  opacity: 0.7;
  font-size: 0.7rem;
  vertical-align: super;
  text-decoration: none;
  margin-left: 1px;
  transition: opacity 0.2s;
}
.stat-cite:hover { opacity: 1; }

/* ══════════════════════════════════════════════════════════════
   ANIMATIONS
   ══════════════════════════════════════════════════════════════ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero-content > * {
  animation: fadeUp 0.7s ease both;
}
.hero-eyebrow { animation-delay: 0.1s; }
h1 { animation-delay: 0.25s; }
.hero-sub { animation-delay: 0.4s; }
.hero-actions { animation-delay: 0.55s; }
.hero-stat-row { animation-delay: 0.7s; }

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — LARGE TABLETS (max-width: 1200px)
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 1200px) {
  nav { padding: 1.1rem 2.5rem; }
  .nav-links { gap: 1.4rem; }
  .nav-links a { font-size: 0.8rem; }
  section { padding: 5rem 2.5rem; }
  .hero { padding: 8rem 2.5rem 4rem; }
  .federal-grid { gap: 2.5rem; }
  .about-grid { gap: 2.5rem; }
  footer { padding: 3rem 2.5rem 2rem; }
  .cta-band { padding: 4rem 2.5rem; }
  .waitlist-section { padding: 4rem 2.5rem; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — TABLETS (max-width: 900px)
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  section { padding: 4rem 1.5rem; }
  .hero { padding: 7rem 1.5rem 4rem; }
  .problem-grid,
  .method-cards,
  .cert-tracks,
  .inversion-split,
  .federal-grid,
  .about-grid { grid-template-columns: 1fr; }
  .hero-stat-row { gap: 2rem; flex-wrap: wrap; }
  .platform-features { grid-template-columns: 1fr; }
  footer { padding: 2.5rem 1.5rem; }
  .footer-inner { flex-direction: column; }
  .waitlist-section { padding: 4rem 1.5rem; }
  .waitlist { padding: 2rem 1.5rem; }
  .form-row { flex-direction: column; }
  .cta-band { padding: 3.5rem 1.5rem; }
  .method-flow { margin-top: 2rem; }
  .fed-stats { grid-template-columns: 1fr 1fr; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — LARGE PHONES (max-width: 768px)
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  h1 { font-size: clamp(2.2rem, 8vw, 3.5rem); }
  h2 { font-size: clamp(1.6rem, 5vw, 2.2rem); }
  .hero-sub { font-size: 1rem; }
  .hero-stat-row { gap: 1.5rem; }
  .hero-stat strong { font-size: 2rem; }
  .hero-stat span { font-size: 0.72rem; }
  .section-lead { font-size: 0.95rem; margin-bottom: 2.5rem; }
  .method-flow { gap: 0; }
  .flow-step { min-width: 160px; padding: 1.5rem 1.2rem; }
  .flow-arrow { font-size: 1rem; }
  .platform-pipeline { padding: 1.5rem; }
  .pipe-node { min-width: 110px; padding: 0 0.5rem; }
  .pipe-icon { width: 40px; height: 40px; font-size: 1rem; }
  .pipe-node h5 { font-size: 0.65rem; }
  .corridor-banner { flex-direction: column; text-align: center; padding: 1rem; }
  .fed-stat strong { font-size: 2rem; }
  .team-member { flex-direction: column; align-items: center; text-align: center; }
  .member-info { text-align: center; }
  .member-linkedin { justify-content: center; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE — SMALL PHONES (max-width: 480px)
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  section { padding: 3rem 1rem; }
  .hero { padding: 6rem 1rem 3rem; min-height: auto; }
  h1 { font-size: clamp(1.8rem, 9vw, 2.8rem); margin-bottom: 1.2rem; }
  .hero-eyebrow { font-size: 0.68rem; }
  .hero-sub { font-size: 0.92rem; margin-bottom: 2rem; }
  .hero-actions { flex-direction: column; }
  .btn-primary, .btn-outline { text-align: center; width: 100%; }
  .hero-stat-row {
    flex-direction: column; gap: 1.5rem;
    margin-top: 3rem; padding-top: 2rem;
  }
  .hero-stat { text-align: center; }
  .hero-stat strong { font-size: 2.2rem; }
  .problem-card { padding: 1.8rem 1.2rem; }
  .inv-col { padding: 1.8rem 1.2rem; }
  .method-flow { flex-direction: column; gap: 0.8rem; }
  .flow-step { min-width: auto; margin: 0; }
  .flow-arrow { transform: rotate(90deg); padding: 0.3rem 0; justify-content: center; }
  .cert-card { padding: 1.8rem 1.2rem; }
  .fed-stats { grid-template-columns: 1fr; }
  .platform-pipeline { flex-direction: column; gap: 1rem; padding: 1.5rem 1rem; }
  .pipe-arrow { transform: rotate(90deg); }
  .pipe-node { min-width: auto; }
  .waitlist { padding: 1.5rem 1rem; }
  .waitlist h3 { font-size: 1.2rem; }
  .cta-band { padding: 3rem 1rem; }
  footer { padding: 2rem 1rem; }
  .footer-inner { gap: 2rem; }
  nav { padding: 0.8rem 1rem; }
  .nav-logo { font-size: 1.2rem; }
}

/* ══════════════════════════════════════════════════════════════
   PRINT STYLES
   ══════════════════════════════════════════════════════════════ */
@media print {
  nav, .hamburger, .mobile-menu, .hero-grid, .hero-bg,
  .cta-band, .waitlist-section { display: none !important; }
  body { background: #fff; color: #333; }
  section { padding: 2rem 0; }
  h1, h2, h3, h4, h5, h6 { color: #111; }
  a { color: #0B1929; }
}