/* ---------------------------------------------------------------------------
   Geyser IIS / geyser-iis.com
   Design system: geothermal dark. Ink-blue depths, hot-spring turquoise,
   a trace of prismatic amber. Clash Display / General Sans / JetBrains Mono.
--------------------------------------------------------------------------- */

/* ----- Fonts (self-hosted) ------------------------------------------------ */

@font-face {
  font-family: 'Clash Display';
  src: url('../assets/fonts/clash-display-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Clash Display';
  src: url('../assets/fonts/clash-display-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Clash Display';
  src: url('../assets/fonts/clash-display-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'General Sans';
  src: url('../assets/fonts/general-sans-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'General Sans';
  src: url('../assets/fonts/general-sans-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'General Sans';
  src: url('../assets/fonts/general-sans-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../assets/fonts/jetbrains-mono-400.woff2') format('woff2');
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

/* ----- Tokens ------------------------------------------------------------- */

:root {
  --ink: #060b12;        /* page depth */
  --basin: #0b1420;      /* raised surfaces */
  --rim: #182b3d;        /* hairlines, borders */
  --steam: #e9f2f6;      /* primary text */
  --mist: #8fa5b7;       /* secondary text */
  --spring: #46d8c8;     /* hot-spring turquoise — the accent */
  --ember: #efa35c;      /* prismatic rim — trace amounts only */

  --thermal: linear-gradient(90deg,
      rgba(70, 216, 200, 0) 0%,
      #46d8c8 22%,
      #9bd98f 55%,
      #efa35c 85%,
      rgba(239, 163, 92, 0) 100%);

  --font-display: 'Clash Display', 'Avenir Next', 'Segoe UI', sans-serif;
  --font-body: 'General Sans', 'Segoe UI', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  --container: 1160px;
  --gutter: clamp(20px, 5vw, 48px);
  --section-pad: clamp(88px, 13vh, 150px);
  --radius: 14px;
}

/* ----- Base --------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--steam);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, p { margin: 0; }

a { color: inherit; text-decoration: none; }

img, svg { display: block; max-width: 100%; }

::selection { background: var(--spring); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--spring);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

section { scroll-margin-top: 76px; }

/* ----- Recurring devices -------------------------------------------------- */

/* Thermal hairline — the prismatic rim, used as a structural divider */
.thermal-rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--thermal);
  opacity: 0.85;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--spring);
  margin-bottom: 22px;
}
.eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  background: var(--thermal);
  flex: none;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
}

.section-intro {
  color: var(--mist);
  max-width: 62ch;
  margin-top: 18px;
}

/* ----- Nav ---------------------------------------------------------------- */

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(6, 11, 18, 0.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.35s ease;
}
.nav.scrolled { border-bottom-color: var(--rim); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
}
.brand svg { width: 26px; height: 26px; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.1em;
}
.brand-word em {
  font-style: normal;
  color: var(--spring);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.nav-links a { transition: color 0.25s ease; }
.nav-links a:hover { color: var(--steam); }
.nav-links a.nav-cta {
  color: var(--spring);
  border: 1px solid rgba(70, 216, 200, 0.35);
  border-radius: 999px;
  padding: 7px 16px;
  transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.nav-links a.nav-cta:hover {
  background: var(--spring);
  border-color: var(--spring);
  color: var(--ink);
}

@media (max-width: 720px) {
  .nav-links a:not(.nav-cta) { display: none; }
}

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

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 96px;
  padding-bottom: 64px;
}

#plume {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-eyebrow::before {
  content: '';
  width: 26px;
  height: 1px;
  background: var(--thermal);
  flex: none;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.7rem, 7vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: -0.022em;
}
.hero h1 .accent { color: var(--spring); }

.hero-sub {
  color: var(--mist);
  font-size: clamp(1.02rem, 1.45vw, 1.18rem);
  max-width: 56ch;
  margin-top: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15.5px;
  border-radius: 999px;
  padding: 14px 28px;
  transition: transform 0.25s ease, background 0.25s ease,
              border-color 0.25s ease, color 0.25s ease;
}
.btn-primary {
  background: var(--spring);
  color: var(--ink);
}
.btn-primary:hover { transform: translateY(-2px); background: #5ee6d7; }
.btn-ghost {
  border: 1px solid var(--rim);
  color: var(--steam);
}
.btn-ghost:hover { border-color: var(--spring); transform: translateY(-2px); }

.hero-meta {
  margin-top: 64px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}
.hero-meta span { white-space: nowrap; }
.hero-meta .tick { color: var(--spring); }

/* ----- Capabilities ------------------------------------------------------- */

.section { padding-block: var(--section-pad); }

.cap-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
  margin-top: 56px;
}

.cap-card {
  grid-column: span 2;
  background: var(--basin);
  border: 1px solid var(--rim);
  border-radius: var(--radius);
  padding: 30px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.cap-card:nth-child(4),
.cap-card:nth-child(5) { grid-column: span 3; }
.cap-card:hover {
  transform: translateY(-4px);
  border-color: rgba(70, 216, 200, 0.45);
}

.cap-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--spring);
}
.cap-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.32rem;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.cap-card p {
  color: var(--mist);
  font-size: 0.97rem;
}

@media (max-width: 960px) {
  .cap-card,
  .cap-card:nth-child(4),
  .cap-card:nth-child(5) { grid-column: span 3; }
}
@media (max-width: 660px) {
  .cap-card,
  .cap-card:nth-child(4),
  .cap-card:nth-child(5) { grid-column: span 6; }
}

/* ----- Approach ----------------------------------------------------------- */

.approach { background: var(--basin); }

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(28px, 4vw, 56px);
  margin-top: 60px;
}

.principle::before {
  content: '';
  display: block;
  width: 34px;
  height: 3px;
  border-radius: 2px;
  background: var(--thermal);
  margin-bottom: 22px;
}
.principle h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.28rem;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.principle p { color: var(--mist); font-size: 0.97rem; }

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

/* ----- Experience --------------------------------------------------------- */

.exp-rows {
  margin-top: 56px;
  border-top: 1px solid var(--rim);
}

.exp-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 12px 40px;
  align-items: baseline;
  padding: 26px 4px;
  border-bottom: 1px solid var(--rim);
  transition: background 0.3s ease;
}
.exp-row:hover { background: rgba(11, 20, 32, 0.7); }

.exp-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.15rem, 2vw, 1.42rem);
  letter-spacing: -0.01em;
  transition: color 0.3s ease;
}
.exp-row:hover .exp-name { color: var(--spring); }

.exp-desc { color: var(--mist); font-size: 0.97rem; }

@media (max-width: 660px) {
  .exp-row { grid-template-columns: 1fr; gap: 6px; }
}

/* ----- Name / About ------------------------------------------------------- */

.origin { background: var(--basin); position: relative; overflow: hidden; }
.origin::after {
  content: '';
  position: absolute;
  inset: auto -20% -60% -20%;
  height: 70%;
  background: radial-gradient(ellipse at 50% 100%,
      rgba(70, 216, 200, 0.07), transparent 65%);
  pointer-events: none;
}

.origin-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(32px, 5vw, 72px);
}

.origin-copy p { color: var(--mist); }
.origin-copy p + p { margin-top: 20px; }
.origin-copy strong { color: var(--steam); font-weight: 600; }

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

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

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.contact-copy p { color: var(--mist); max-width: 52ch; margin-top: 18px; }

.contact-form {
  margin-top: 34px;
  display: grid;
  gap: 18px;
  max-width: 560px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-field { display: grid; gap: 8px; }

.form-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--spring);
}

.form-input {
  width: 100%;
  background: var(--basin);
  border: 1px solid var(--rim);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--steam);
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.5;
  transition: border-color 0.25s ease;
}
.form-input:hover { border-color: rgba(70, 216, 200, 0.35); }
.form-input:focus {
  outline: none;
  border-color: var(--spring);
}

textarea.form-input { resize: vertical; min-height: 130px; }

/* Honeypot — visually removed, still in the accessibility-hidden DOM for bots */
.form-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form .btn {
  justify-self: start;
  border: 0;
  cursor: pointer;
}
.contact-form .btn[disabled] {
  opacity: 0.55;
  cursor: default;
  transform: none;
}

.contact-form .form-status {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
  margin: 0;
  min-height: 1.2em;
}
.contact-form .form-status.ok { color: var(--spring); }
.contact-form .form-status.err { color: var(--ember); }

.address-card {
  background: var(--basin);
  border: 1px solid var(--rim);
  border-radius: var(--radius);
  padding: 30px 30px 32px;
  position: relative;
  overflow: hidden;
}
.address-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--thermal);
}
.address-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  color: var(--spring);
  margin-bottom: 18px;
}
.address-card address {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 2;
  color: var(--steam);
}
.address-card address .dim { color: var(--mist); }

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
}

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

.footer { padding: 40px 0 48px; }

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 32px;
  align-items: center;
  justify-content: space-between;
  margin-top: 40px;
}

.footer-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

/* ----- Reveal-on-scroll --------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.cap-card.reveal:nth-child(2) { transition-delay: 0.08s; }
.cap-card.reveal:nth-child(3) { transition-delay: 0.16s; }
.cap-card.reveal:nth-child(5) { transition-delay: 0.08s; }
.principle.reveal:nth-child(2) { transition-delay: 0.1s; }
.principle.reveal:nth-child(3) { transition-delay: 0.2s; }

/* ----- 404 ---------------------------------------------------------------- */

.notfound {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 22px;
  padding: var(--gutter);
}
.notfound .code {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.24em;
  color: var(--spring);
}
.notfound h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: -0.02em;
}
.notfound p { color: var(--mist); max-width: 44ch; }

/* ----- Reduced motion ----------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn,
  .cap-card { transition: none; }
}