/* Aether Systems — institutional stylesheet */

:root {
  --bg: #0a1628;
  --bg-deep: #07101f;
  --ink: #f4f1ea;
  --ink-muted: rgba(244, 241, 234, 0.62);
  --ink-faint: rgba(244, 241, 234, 0.42);
  --hairline: rgba(244, 241, 234, 0.15);
  --accent: #b08d57;
  --accent-soft: rgba(176, 141, 87, 0.35);
  --overlay: rgba(10, 22, 40, 0.55);
  --font-serif: "Cormorant Garamond", "EB Garamond", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: clamp(17px, 1vw + 13px, 18px);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
  transition: border-color 200ms ease, color 200ms ease, background-color 200ms ease;
}

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

/* ---------- Layout primitives ---------- */

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding-inline: clamp(20px, 5vw, 64px);
}

.container--narrow {
  max-width: 740px;
  margin: 0 auto;
  padding-inline: clamp(20px, 5vw, 64px);
}

/* ---------- Header ---------- */

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  padding: 32px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark {
  font-family: var(--font-serif);
  font-size: clamp(18px, 1.6vw, 22px);
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--ink);
  border: none;
  text-transform: uppercase;
}

.wordmark:hover {
  color: var(--ink);
}

.nav {
  display: flex;
  gap: clamp(20px, 3vw, 36px);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-muted);
  border: none;
  padding-bottom: 2px;
}

.nav a:hover,
.nav a.is-active {
  color: var(--ink);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 92vh;
  background-image:
    linear-gradient(var(--overlay), var(--overlay)),
    url("https://images.unsplash.com/photo-1486299267070-83823f5448dd?w=2400&q=80&fm=jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: flex-end;
  padding-bottom: clamp(64px, 9vw, 112px);
}

.hero .container {
  width: 100%;
}

.hero__eyebrow {
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 28px 0;
  font-weight: 400;
}

.hero__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 5.6vw, 4.6rem);
  line-height: 1.1;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 0 0 32px 0;
  max-width: 18ch;
}

.hero__subhead {
  font-size: clamp(1.1rem, 1.1vw + 0.6rem, 1.35rem);
  color: var(--ink-muted);
  max-width: 56ch;
  margin: 0 0 44px 0;
  line-height: 1.6;
}

.hero__cta {
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink);
  border: none;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--accent);
}

.hero__cta:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- Section primitives ---------- */

.section {
  padding: clamp(72px, 10vw, 128px) 0;
  border-top: 1px solid var(--hairline);
}

.section:first-of-type {
  border-top: none;
}

.section__label {
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 32px 0;
}

.section__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 3.6vw, 2.8rem);
  line-height: 1.18;
  color: var(--ink);
  margin: 0 0 40px 0;
  max-width: 28ch;
}

.section__body p {
  font-size: clamp(1.06rem, 0.4vw + 0.95rem, 1.15rem);
  line-height: 1.75;
  color: var(--ink-muted);
  margin: 0 0 24px 0;
  max-width: 64ch;
}

.section__body p:last-child {
  margin-bottom: 0;
}

/* ---------- Sectors list ---------- */

.sectors {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--hairline);
}

.sectors li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 28px 0;
  border-bottom: 1px solid var(--hairline);
  gap: 24px;
}

.sectors__name {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 1.4vw + 0.4rem, 1.6rem);
  color: var(--ink);
  font-weight: 400;
}

.sectors__index {
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------- About address block ---------- */

.address {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--hairline);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.address dt {
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 12px 0;
}

.address dd {
  margin: 0;
  font-size: clamp(1rem, 0.3vw + 0.9rem, 1.08rem);
  color: var(--ink);
  line-height: 1.7;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--hairline);
  padding: clamp(48px, 6vw, 72px) 0 clamp(36px, 4vw, 56px) 0;
  font-size: 0.86rem;
  color: var(--ink-faint);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
}

.site-footer__col {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 32ch;
}

.site-footer__label {
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}

.site-footer__line {
  color: var(--ink-muted);
}

/* ---------- Contact page ---------- */

.contact-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.contact-page .site-header {
  position: relative;
  background: transparent;
}

.contact-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: clamp(64px, 7vw, 96px) clamp(20px, 5vw, 64px) clamp(80px, 9vw, 120px);
  gap: clamp(56px, 6vw, 80px);
}

.contact-card {
  max-width: 580px;
  width: 100%;
  text-align: center;
}

.contact-card__label {
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 28px 0;
}

.contact-card__title {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.1rem, 4.2vw, 3rem);
  line-height: 1.18;
  margin: 0 0 40px 0;
  color: var(--ink);
}

/* ---------- Contact map ---------- */

.contact-block {
  width: 100%;
  max-width: 880px;
}

.contact-block__label {
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 20px 0;
  text-align: center;
}

.contact-map {
  width: 100%;
  border: 1px solid var(--accent-soft);
  background: var(--bg-deep);
  overflow: hidden;
  line-height: 0;
}

.contact-map iframe {
  display: block;
  width: 100%;
  height: 420px;
  border: 0;
  filter: saturate(0.7) brightness(0.92);
}

/* ---------- Contact address (compact under map) ---------- */

.contact-info {
  width: 100%;
  max-width: 720px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
  font-size: 0.96rem;
  color: var(--ink-muted);
  line-height: 1.7;
}

.contact-info__email {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--ink);
  letter-spacing: 0.01em;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 4px;
  align-self: center;
  border-radius: 0;
}

.contact-info__email:hover {
  color: var(--accent);
}

.contact-info__line {
  margin: 0;
}

/* ---------- Contact form ---------- */

.contact-form {
  width: 100%;
  max-width: 640px;
  display: grid;
  gap: 28px;
}

.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-form__label {
  font-size: 10px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}

.contact-form__input,
.contact-form__textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 300;
  padding: 10px 0;
  line-height: 1.5;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color 200ms ease;
}

.contact-form__input:focus,
.contact-form__textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.contact-form__textarea {
  resize: vertical;
  min-height: 7.5em;
  line-height: 1.6;
}

.contact-form__honeypot {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form__submit-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.contact-form__submit {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--accent);
  padding: 14px 28px;
  cursor: pointer;
  transition: background-color 200ms ease, color 200ms ease;
  border-radius: 0;
}

.contact-form__submit:hover:not(:disabled) {
  background: var(--accent);
  color: var(--bg);
}

.contact-form__submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.contact-form__status {
  min-height: 1.5em;
  font-size: 0.95rem;
  color: var(--ink-muted);
  text-align: right;
  margin-top: 4px;
}

.contact-form__status[data-state="success"] {
  color: var(--accent);
}

.contact-form__status[data-state="error"] {
  color: var(--accent);
}

/* ---------- Responsive ---------- */

@media (max-width: 1024px) {
  .container {
    max-width: 880px;
  }

  .hero {
    min-height: 88vh;
  }
}

@media (max-width: 768px) {
  .site-header {
    padding: 24px 0;
  }

  .site-header .container {
    flex-wrap: wrap;
    gap: 16px;
  }

  .nav {
    gap: 20px;
  }

  .wordmark {
    font-size: 16px;
    letter-spacing: 0.16em;
  }

  .hero {
    min-height: 80vh;
    padding-bottom: 56px;
    background-position: center center;
  }

  .hero__title {
    max-width: 100%;
  }

  .hero__subhead {
    max-width: 100%;
  }

  .section {
    padding: 72px 0;
  }

  .section__title {
    max-width: 100%;
  }

  .sectors li {
    padding: 22px 0;
  }

  .address {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .site-footer .container {
    flex-direction: column;
    gap: 28px;
  }

  .contact-map iframe {
    height: 340px;
  }

  .contact-form__submit-row {
    justify-content: stretch;
  }

  .contact-form__submit {
    width: 100%;
  }

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

@media (max-width: 480px) {
  .nav {
    width: 100%;
    justify-content: flex-start;
    gap: 18px;
  }

  .nav a {
    font-size: 10px;
    letter-spacing: 0.2em;
  }

  .hero {
    min-height: 78vh;
    padding-bottom: 48px;
  }
}