/* ===== SIGNAL STACK RESEARCH — SHARED STYLES ===== */

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

:root {
  --navy: #0B1E3F;
  --navy-deep: #061330;
  --navy-mid: #14305C;
  --platinum: #C8CCD1;
  --platinum-light: #E5E7EB;
  --platinum-soft: #F4F5F7;
  --ink: #1A1A1A;
  --muted: #4A5568;
  --accent: #8B9DC3;
  --line: #1F3A6B;
  --gold: #C8A040;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  background: var(--navy-deep);
  color: var(--platinum-light);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== HEADER ===== */
header.site-header {
  background: linear-gradient(180deg, var(--navy-deep) 0%, var(--navy) 100%);
  border-bottom: 1px solid var(--line);
  padding: 32px 24px 24px;
  text-align: center;
  position: relative;
}

header.site-header::after {
  content: "";
  position: absolute;
  bottom: -1px; left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--platinum), transparent);
}

.site-title {
  font-family: "Optima", "Trajan Pro", "Cinzel", Georgia, serif;
  font-size: 38px;
  letter-spacing: 0.32em;
  color: var(--platinum-light);
  font-weight: 400;
  margin-bottom: 20px;
  padding-left: 0.32em;
}

/* ===== NAV ===== */
nav.main-nav {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  padding: 4px 0 8px;
}

nav.main-nav a {
  font-family: "Optima", "Trajan Pro", "Cinzel", Georgia, serif;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.2em;
  font-size: 13px;
  text-transform: uppercase;
  padding: 6px 4px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-bottom-color 0.2s;
}

nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--platinum-light);
  border-bottom-color: var(--platinum);
}

/* ===== MAIN CONTENT ===== */
main {
  flex: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 28px 80px;
  width: 100%;
}

/* ===== HERO ===== */
.hero {
  text-align: center;
  padding: 24px 0 56px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 56px;
}

.tagline {
  font-family: "Iowan Old Style", Georgia, serif;
  font-size: 30px;
  color: var(--platinum-light);
  line-height: 1.4;
  margin-bottom: 22px;
  font-style: italic;
  letter-spacing: 0.01em;
}

.hero-sub {
  font-size: 17px;
  color: var(--accent);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

/* ===== SECTIONS ===== */
section.page-section {
  margin-bottom: 64px;
}

h1.page-title {
  font-family: "Optima", "Trajan Pro", "Cinzel", Georgia, serif;
  font-size: 36px;
  letter-spacing: 0.1em;
  color: var(--platinum-light);
  margin-bottom: 14px;
  text-align: center;
}

.page-subtitle {
  text-align: center;
  color: var(--accent);
  font-style: italic;
  font-size: 16px;
  margin-bottom: 48px;
  letter-spacing: 0.02em;
}

h2.section-heading {
  font-family: "Optima", "Trajan Pro", Georgia, serif;
  font-size: 22px;
  letter-spacing: 0.16em;
  color: var(--platinum);
  text-transform: uppercase;
  border-top: 1px solid var(--line);
  padding-top: 28px;
  margin-bottom: 22px;
  margin-top: 48px;
}

h2.section-heading:first-child {
  margin-top: 0;
  border-top: none;
  padding-top: 0;
}

p {
  margin-bottom: 18px;
  color: var(--platinum-light);
}

p a, .content-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s, border-bottom-color 0.2s;
}

p a:hover, .content-link:hover {
  color: var(--platinum-light);
  border-bottom-color: var(--platinum);
}

/* ===== CARDS (Published Work) ===== */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.card {
  background: var(--navy);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 32px 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: var(--platinum);
  transform: translateY(-2px);
}

.card-date {
  font-family: "Iowan Old Style", Georgia, serif;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.card-title {
  font-family: "Optima", "Trajan Pro", Georgia, serif;
  font-size: 26px;
  color: var(--platinum-light);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.card-pub {
  font-style: italic;
  color: var(--accent);
  margin-bottom: 14px;
  font-size: 14px;
}

.card-desc {
  color: var(--platinum-light);
  margin-bottom: 22px;
  line-height: 1.6;
}

.card-link {
  display: inline-block;
  font-family: "Optima", Georgia, serif;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--platinum);
  text-decoration: none;
  border: 1px solid var(--platinum);
  padding: 10px 22px;
  transition: background 0.2s, color 0.2s;
}

.card-link:hover {
  background: var(--platinum);
  color: var(--navy-deep);
}

/* ===== EMAIL SIGNUP ===== */
.email-signup {
  background: var(--navy);
  border: 1px solid var(--line);
  border-left: 3px solid var(--platinum);
  padding: 36px 32px;
  margin: 56px 0;
  text-align: center;
}

.email-signup h3 {
  font-family: "Optima", "Cinzel", Georgia, serif;
  font-size: 22px;
  letter-spacing: 0.1em;
  color: var(--platinum-light);
  margin-bottom: 10px;
}

.email-signup p {
  font-size: 15px;
  color: var(--accent);
  max-width: 520px;
  margin: 0 auto 22px;
}

.email-form {
  display: flex;
  gap: 10px;
  max-width: 520px;
  margin: 0 auto;
  flex-wrap: wrap;
  justify-content: center;
}

.email-form input[type="email"] {
  flex: 1;
  min-width: 220px;
  background: var(--navy-deep);
  border: 1px solid var(--line);
  color: var(--platinum-light);
  padding: 12px 16px;
  font-family: inherit;
  font-size: 15px;
  border-radius: 2px;
  outline: none;
  transition: border-color 0.2s;
}

.email-form input[type="email"]:focus {
  border-color: var(--platinum);
}

.email-form button {
  font-family: "Optima", Georgia, serif;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  background: var(--platinum);
  color: var(--navy-deep);
  border: 1px solid var(--platinum);
  padding: 12px 24px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  border-radius: 2px;
}

.email-form button:hover {
  background: var(--platinum-light);
}

.email-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 14px;
  font-style: italic;
}

/* ===== SERVICES TIERS ===== */
.tiers-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.tier {
  background: var(--navy);
  border: 1px solid var(--line);
  padding: 28px;
  border-radius: 2px;
}

.tier-name {
  font-family: "Optima", "Cinzel", Georgia, serif;
  font-size: 18px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--platinum);
  margin-bottom: 8px;
}

.tier-price {
  font-family: "Iowan Old Style", Georgia, serif;
  font-style: italic;
  color: var(--accent);
  font-size: 15px;
  margin-bottom: 14px;
}

.tier-desc {
  color: var(--platinum-light);
  font-size: 15px;
  line-height: 1.6;
}

/* ===== CONTACT ===== */
.contact-info {
  text-align: center;
  background: var(--navy);
  border: 1px solid var(--line);
  border-left: 3px solid var(--platinum);
  padding: 40px 32px;
  margin: 32px 0;
}

.contact-info p {
  font-size: 16px;
  margin-bottom: 12px;
}

.contact-email {
  font-family: "Optima", Georgia, serif;
  font-size: 18px;
  color: var(--platinum-light);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

/* ===== METHOD FLAGS ===== */
.flags-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin: 32px 0 48px;
}

.flag-card {
  background: var(--navy);
  border: 1px solid var(--line);
  border-left: 4px solid var(--platinum);
  padding: 24px 26px;
}

.flag-card.green { border-left-color: #1F6B3A; }
.flag-card.yellow { border-left-color: #C8A028; }
.flag-card.red { border-left-color: #A73232; }

.flag-name {
  font-family: "Optima", "Cinzel", Georgia, serif;
  font-size: 18px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.flag-card.green .flag-name { color: #5BA773; }
.flag-card.yellow .flag-name { color: #DBB54C; }
.flag-card.red .flag-name { color: #D17575; }

.flag-tag {
  font-style: italic;
  color: var(--platinum);
  font-size: 14px;
  margin-bottom: 12px;
}

.flag-card ul {
  list-style: none;
  padding-left: 0;
}

.flag-card ul li {
  padding: 4px 0;
  color: var(--platinum-light);
  font-size: 14px;
}

.flag-card ul li::before {
  content: "· ";
  color: var(--muted);
}

/* ===== FOOTER ===== */
footer.site-footer {
  background: var(--navy-deep);
  border-top: 1px solid var(--line);
  padding: 32px 24px 24px;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  margin-top: auto;
}

footer.site-footer .credit {
  font-family: "Optima", Georgia, serif;
  font-style: italic;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
  color: var(--accent);
}

footer.site-footer .tagline-foot {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 12px;
}

footer.site-footer .legal {
  font-size: 11px;
  color: var(--muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 720px) {
  .site-title { font-size: 24px; letter-spacing: 0.24em; }
  nav.main-nav { gap: 14px; padding: 4px 12px 8px; }
  nav.main-nav a { font-size: 11px; letter-spacing: 0.14em; padding: 4px 2px; }
  main { padding: 36px 18px 60px; }
  .tagline { font-size: 22px; }
  h1.page-title { font-size: 26px; }
  h2.section-heading { font-size: 18px; }
  .card { padding: 24px 20px; }
  .card-title { font-size: 22px; }
  .email-form { flex-direction: column; }
  .email-form input[type="email"], .email-form button { width: 100%; }
}