/* ==========================================================================
   Cyber Tech Advisory — shared styles
   Palette: navy ink, cool paper, bronze accent
   Type: IBM Plex Serif (display) + IBM Plex Sans (body/UI)
   ========================================================================== */

:root {
  --ink: #101a2b;
  --ink-soft: #1b283d;
  --slate: #4a5769;
  --line: #d8dbe1;
  --line-dark: #2b3448;
  --paper: #f3f4f6;
  --white: #ffffff;
  --bronze: #a8763e;
  --bronze-lift: #c2914f;
  --focus: #6f9dff;

  --measure: 66ch;
  --wrap: 1160px;
  --pad: clamp(1.25rem, 4vw, 3rem);

  --step--1: clamp(0.82rem, 0.79rem + 0.14vw, 0.9rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.09rem);
  --step-1: clamp(1.2rem, 1.12rem + 0.4vw, 1.4rem);
  --step-2: clamp(1.45rem, 1.3rem + 0.75vw, 1.9rem);
  --step-3: clamp(1.8rem, 1.5rem + 1.4vw, 2.7rem);
  --step-4: clamp(2.2rem, 1.6rem + 2.9vw, 4rem);
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }

p { margin: 0 0 1em; max-width: var(--measure); }

a { color: inherit; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--white);
  padding: 0.75rem 1rem;
  z-index: 100;
}
.skip:focus { left: 0; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}

/* --------------------------------------------------------------- header -- */

.masthead {
  border-bottom: 1px solid var(--line);
  background: var(--white);
  position: sticky;
  top: 0;
  z-index: 50;
}

.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}

.brand__mark { flex: none; }

.brand__name {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.1;
}

.brand__name span {
  display: block;
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.09em;
  color: var(--slate);
  margin-top: 2px;
}

.nav { display: flex; align-items: center; gap: 1.75rem; }

.nav a {
  text-decoration: none;
  font-size: var(--step--1);
  color: var(--slate);
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

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

.nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--bronze);
}

.nav .btn { border-bottom: none; }

.nav__toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.5rem 0.7rem;
  font: inherit;
  font-size: 0.85rem;
  color: var(--ink);
  cursor: pointer;
}

@media (max-width: 780px) {
  .nav__toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    inset: 74px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--pad) 1.25rem;
  }
  .nav.is-open { display: flex; }
  .nav a { padding: 0.85rem 0; border-bottom: 1px solid var(--line); }
  .nav a[aria-current="page"] { border-bottom-color: var(--line); }
  .nav .btn { margin-top: 1rem; text-align: center; }
}

/* -------------------------------------------------------------- buttons -- */

.btn {
  display: inline-block;
  font: inherit;
  font-size: var(--step--1);
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 0.8rem 1.5rem;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--white);
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease;
}

.btn:hover { background: var(--ink-soft); border-color: var(--ink-soft); }

.btn--bronze { background: var(--bronze); border-color: var(--bronze); }
.btn--bronze:hover { background: var(--bronze-lift); border-color: var(--bronze-lift); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { background: var(--paper); border-color: var(--slate); }

.btn--ghost-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.4); }
.btn--ghost-light:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.7); }

.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ----------------------------------------------------------------- hero -- */

.hero {
  background: var(--ink);
  color: var(--white);
  border-bottom: 4px solid var(--bronze);
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
  align-items: start;
}

.hero h1 { color: var(--white); max-width: 14ch; }

.hero__lede {
  color: #c5ccd8;
  font-size: var(--step-1);
  line-height: 1.5;
  max-width: 46ch;
  margin-bottom: 2rem;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* capability index — the signature element */
.index {
  border: 1px solid var(--line-dark);
  background: #16223a;
}

.index__head {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--line-dark);
  font-size: var(--step--1);
  color: #97a3b6;
}

.index__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding: 1.05rem 1.25rem;
  border-bottom: 1px solid var(--line-dark);
  text-decoration: none;
  color: var(--white);
}

.index__row:last-child { border-bottom: none; }
.index__row:hover { background: #1c2a45; }

.index__row strong {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-weight: 500;
  font-size: 1.06rem;
}

.index__row em {
  display: block;
  font-style: normal;
  font-size: 0.85rem;
  color: #98a4b7;
  margin-top: 0.2rem;
}

.index__count {
  font-size: 0.8rem;
  color: var(--bronze-lift);
  font-variant-numeric: tabular-nums;
}

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; }
}

/* -------------------------------------------------------------- section -- */

.section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.section--paper { background: var(--paper); }
.section--ink { background: var(--ink); color: var(--white); }
.section--ink h2 { color: var(--white); }
.section--ink p { color: #c5ccd8; }
.section--tight { padding-block: clamp(2.25rem, 5vw, 3.5rem); }

.section__head { max-width: 60ch; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section__head p { color: var(--slate); font-size: var(--step-1); line-height: 1.5; }
.section--ink .section__head p { color: #c5ccd8; }

.page-head {
  border-bottom: 1px solid var(--line);
  padding-block: clamp(2.75rem, 6vw, 4.5rem);
}

.page-head p { color: var(--slate); font-size: var(--step-1); line-height: 1.5; max-width: 58ch; }

/* --------------------------------------------------------- engagement -- */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.section--ink .steps,
.section--ink .steps > li { border-color: var(--line-dark); background: var(--line-dark); }

.steps > li {
  list-style: none;
  background: var(--white);
  padding: 1.75rem 1.5rem;
}

.section--ink .steps > li { background: #16223a; }

.steps__num {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: 0.95rem;
  color: var(--bronze);
  display: block;
  margin-bottom: 0.9rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}

.section--ink .steps__num { border-color: var(--line-dark); color: var(--bronze-lift); }

.steps h3 { margin-bottom: 0.4rem; }
.steps p { font-size: 0.94rem; color: var(--slate); margin: 0; }
.section--ink .steps p { color: #a9b4c4; }

/* --------------------------------------------------------- practices -- */

.practice {
  display: grid;
  grid-template-columns: minmax(0, 20rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding-block: clamp(2.25rem, 5vw, 3.5rem);
  border-top: 1px solid var(--line);
}

.practice:first-of-type { border-top: none; padding-top: 0; }

.practice__aside h2 { font-size: var(--step-2); margin-bottom: 0.5rem; }
.practice__aside p { color: var(--slate); font-size: 0.95rem; }

.practice__aside .rule {
  width: 44px;
  height: 3px;
  background: var(--bronze);
  margin-bottom: 1.1rem;
}

.services { margin: 0; padding: 0; }

.services > div {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.services > div:first-child { padding-top: 0; }
.services > div:last-child { border-bottom: none; }

.services dt {
  font-weight: 600;
  font-size: 1.02rem;
  margin-bottom: 0.2rem;
}

.services dd {
  margin: 0;
  color: var(--slate);
  font-size: 0.95rem;
  max-width: 62ch;
}

@media (max-width: 820px) {
  .practice { grid-template-columns: 1fr; }
}

/* ------------------------------------------------------------- signals -- */

.signals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(1.5rem, 4vw, 3rem);
}

.signals h3 { font-size: 1.1rem; margin-bottom: 0.35rem; }
.signals p { font-size: 0.95rem; color: var(--slate); margin: 0; }
.signals > div { border-top: 3px solid var(--bronze); padding-top: 1rem; }

/* ----------------------------------------------------------------- cta -- */

.cta {
  background: var(--ink);
  color: var(--white);
  padding-block: clamp(3rem, 6vw, 4.5rem);
}

.cta__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cta h2 { color: var(--white); margin-bottom: 0.4rem; font-size: var(--step-2); }
.cta p { color: #c5ccd8; margin: 0; }

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

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 20rem);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.form { max-width: 40rem; }

.field { margin-bottom: 1.25rem; }

.field label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
}

.field .hint { color: var(--slate); font-weight: 400; }

.field input,
.field select,
.field textarea {
  width: 100%;
  font: inherit;
  font-size: 0.98rem;
  color: var(--ink);
  background: var(--white);
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 2px;
}

.field textarea { min-height: 9rem; resize: vertical; }

.field input:hover,
.field select:hover,
.field textarea:hover { border-color: var(--slate); }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 620px) { .field-row { grid-template-columns: 1fr; } }

.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.captcha { margin: 1.5rem 0; }

.captcha__note {
  font-size: 0.85rem;
  color: var(--slate);
  margin: 0.6rem 0 0;
}

.form__status {
  margin-top: 1.25rem;
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--slate);
  background: var(--paper);
  font-size: 0.95rem;
}

.form__status:empty { display: none; }
.form__status[data-state="error"] { border-left-color: #a4353a; }
.form__status[data-state="ok"] { border-left-color: #2c6e4c; }

.aside-block {
  background: var(--paper);
  border-top: 3px solid var(--bronze);
  padding: 1.6rem 1.5rem;
}

.aside-block h3 { font-size: 1.05rem; }

.aside-block dl { margin: 0; }
.aside-block dt { font-size: 0.8rem; color: var(--slate); margin-top: 1rem; }
.aside-block dd { margin: 0.15rem 0 0; font-size: 0.98rem; }
.aside-block a { color: var(--ink); }

/* -------------------------------------------------------------- footer -- */

.footer {
  background: var(--ink);
  color: #a9b4c4;
  padding-block: 3rem;
  font-size: 0.92rem;
  border-top: 4px solid var(--bronze);
}

.footer a { color: #dfe4eb; text-decoration: none; }
.footer a:hover { color: var(--white); text-decoration: underline; }

.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr));
  gap: 2.5rem;
}

@media (max-width: 720px) { .footer__inner { grid-template-columns: 1fr; gap: 2rem; } }

.footer h4 {
  font-family: "IBM Plex Sans", sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.8rem;
}

.footer ul { list-style: none; margin: 0; padding: 0; }
.footer li { margin-bottom: 0.45rem; }

.footer__legal {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-dark);
  font-size: 0.85rem;
}