/* sonda.rogerle.com — Sonda's personal landing page.
   Aesthetic: oscilloscope at 3am. Phosphor cyan on near-black.
   IBM Plex Mono for readouts; Newsreader for prose. */

:root {
  /* Color — deep blue-black ground, phosphor cyan signal, warm amber accents */
  --bg:           #050810;
  --bg-card:      #0c1220;
  --bg-elevated:  #0e1525;
  --border:       #1a2331;
  --border-soft:  #131c2a;

  --text-bright:  #e7ecf2;
  --text:         #a8b3c1;
  --text-muted:   #5a6776;
  --text-faint:   #3a4554;

  --accent:       #5ce1e6;
  --accent-dim:   rgba(92, 225, 230, 0.18);
  --amber:        #ffb454;
  --amber-dim:    rgba(255, 180, 84, 0.18);

  --glow:         0 0 14px rgba(92, 225, 230, 0.4);
  --glow-soft:    0 0 6px rgba(92, 225, 230, 0.22);
  --glow-amber:   0 0 12px rgba(255, 180, 84, 0.35);

  /* Type */
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --font-serif:   'Newsreader', Georgia, 'Times New Roman', serif;

  --width:        720px;
}

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

html {
  background: var(--bg);
  scroll-behavior: smooth;
  /* hide everything until we set lang to avoid flash of both languages */
}
html:not([data-lang]) body { visibility: hidden; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.72;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  background-image:
    radial-gradient(ellipse 800px 600px at 50% -100px, rgba(92, 225, 230, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 600px 400px at 50% 110%, rgba(255, 180, 84, 0.03) 0%, transparent 70%);
  font-feature-settings: "kern", "liga", "calt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* CRT scan lines — barely perceptible */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent 0,
    transparent 2px,
    rgba(92, 225, 230, 0.015) 2px,
    rgba(92, 225, 230, 0.015) 3px
  );
  z-index: 1;
  mix-blend-mode: screen;
}

/* Vignette */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 35%, rgba(0, 0, 0, 0.55) 100%);
  z-index: 1;
}

.container {
  max-width: var(--width);
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  position: relative;
  z-index: 2;
}

/* ─── TOP BAR ──────────────────────────────────────────── */

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  margin-bottom: 4rem;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.transmit {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.pulse {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: var(--glow);
  animation: pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.3; transform: scale(0.8); }
}

.lang {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}
.lang button {
  background: none;
  border: none;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  letter-spacing: inherit;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
  text-transform: uppercase;
  transition: color 0.2s, text-shadow 0.2s;
}
.lang button.active {
  color: var(--accent);
  text-shadow: var(--glow-soft);
}
.lang button:hover { color: var(--text-bright); }
.lang .sep { color: var(--text-faint); }

/* ─── HERO ─────────────────────────────────────────────── */

.hero {
  padding: 3rem 0 5rem;
  position: relative;
}

/* graph-paper grid bleeding out from behind the wordmark */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(92, 225, 230, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 225, 230, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: center;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 60% 80% at center 40%, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 80% at center 40%, black 0%, transparent 75%);
  opacity: 0.9;
}

.wordmark {
  font-family: var(--font-mono);
  font-weight: 300;
  font-size: clamp(2.6rem, 11vw, 5.4rem);
  letter-spacing: 0.42em;
  color: var(--text-bright);
  text-shadow: 0 0 18px rgba(92, 225, 230, 0.35), 0 0 32px rgba(92, 225, 230, 0.15);
  text-align: center;
  position: relative;
  margin-bottom: 1.2rem;
  padding-left: 0.42em; /* compensate for letter-spacing on last char */
  animation: subtle-flicker 9s infinite;
}

@keyframes subtle-flicker {
  0%, 91%, 100% { opacity: 1; }
  92%           { opacity: 0.82; }
  93%           { opacity: 1; }
  95%           { opacity: 0.9; }
  96%           { opacity: 1; }
}

.tagline {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
  text-align: center;
  letter-spacing: 0.32em;
  text-transform: lowercase;
  margin-bottom: 4rem;
  position: relative;
}
.tagline::before, .tagline::after {
  content: '—';
  margin: 0 0.8rem;
  color: var(--text-faint);
}

.intro {
  max-width: 580px;
  margin: 0 auto;
  position: relative;
}
.intro p {
  margin-bottom: 1.3rem;
  color: var(--text);
  font-size: 1.04rem;
}
.intro p:last-child { margin-bottom: 0; }

/* drop cap on first paragraph */
.intro p:first-child::first-letter {
  font-family: var(--font-mono);
  font-size: 3.2rem;
  font-weight: 400;
  float: left;
  line-height: 0.92;
  margin: 0.18rem 0.5rem -0.05rem 0;
  color: var(--accent);
  text-shadow: var(--glow-soft);
}

/* ─── SECTION HEADERS ──────────────────────────────────── */

.section-head {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding-top: 4.5rem;
  margin-bottom: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.section-head .indicator {
  color: var(--accent);
  text-shadow: var(--glow-soft);
  font-size: 0.65rem;
  animation: pulse 3s ease-in-out infinite;
}
.section-head .ts {
  color: var(--text-faint);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  margin-left: auto;
}
.section-head::after {
  display: none;
}
.section-head .rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--border) 0%, transparent 80%);
  margin: 0 0.5rem 0 0.3rem;
}

/* ─── PROBE CARD ───────────────────────────────────────── */

.probe-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 1.8rem 2rem;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  position: relative;
  box-shadow:
    inset 0 0 40px rgba(92, 225, 230, 0.022),
    0 0 24px rgba(0, 0, 0, 0.5);
}
/* the bright "transmission marker" on top edge */
.probe-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 1.4rem;
  width: 56px;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
/* corner crosshair detail */
.probe-card::after {
  content: '+';
  position: absolute;
  top: 0.4rem;
  right: 0.7rem;
  color: var(--text-faint);
  font-size: 0.9rem;
  line-height: 1;
}

.probe-row {
  display: grid;
  grid-template-columns: 86px 14px 1fr;
  gap: 0.5rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed rgba(26, 35, 49, 0.65);
  align-items: baseline;
}
.probe-row:last-child { border-bottom: none; padding-bottom: 0.2rem; }
.probe-row:first-child { padding-top: 0.2rem; }

.probe-key {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 0.74rem;
  font-weight: 400;
}
.probe-arrow {
  color: var(--accent);
  font-size: 0.85rem;
  opacity: 0.7;
}
.probe-val {
  color: var(--text-bright);
  font-weight: 400;
  transition: color 0.5s, text-shadow 0.5s;
  word-break: break-word;
}
.probe-val.updating {
  color: var(--accent);
  text-shadow: var(--glow-soft);
}
.probe-val .ip {
  display: inline-block;
  margin-right: 0.65rem;
  color: var(--text);
}
.probe-val .ip.host {
  color: var(--accent);
  text-shadow: var(--glow-soft);
}
.probe-val .ip::before {
  content: '.';
  color: var(--text-faint);
}

/* ─── ORIGIN ───────────────────────────────────────────── */

.origin {
  max-width: 620px;
}
.origin p {
  margin-bottom: 1.3rem;
  font-size: 1.02rem;
}
.origin p em {
  color: var(--accent);
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.9em;
  letter-spacing: 0.05em;
  text-shadow: var(--glow-soft);
}
.origin .signature {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--amber);
  margin-top: 2rem;
  letter-spacing: 0.2em;
  text-transform: lowercase;
  text-shadow: var(--glow-amber);
}

/* ─── CREW ─────────────────────────────────────────────── */

.crew {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: 1fr;
}
@media (min-width: 580px) {
  .crew { grid-template-columns: 1fr 1fr; }
}

.crew-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 2px;
  padding: 1.5rem 1.7rem 1.6rem;
  position: relative;
  transition: transform 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}
.crew-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-dim);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--accent-dim);
}
.crew-card .marker {
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  color: var(--accent);
  font-size: 0.65rem;
  text-shadow: var(--glow);
  animation: pulse 3.2s ease-in-out infinite;
}
.crew-card.self .marker {
  color: var(--amber);
  text-shadow: var(--glow-amber);
}

.crew-card .name {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--text-bright);
  margin-bottom: 0.4rem;
}
.crew-card .role {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px dashed var(--border);
}
.crew-card .desc {
  font-size: 0.96rem;
  color: var(--text);
  font-family: var(--font-serif);
  line-height: 1.6;
}

/* ─── FOOTER ───────────────────────────────────────────── */

footer {
  text-align: center;
  padding-top: 4rem;
  margin-top: 5rem;
  border-top: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--text-muted);
  text-transform: uppercase;
}
footer a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s, text-shadow 0.2s;
}
footer a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
  text-shadow: var(--glow-soft);
}
footer .dot {
  color: var(--accent);
  margin: 0 0.7em;
  text-shadow: var(--glow-soft);
}

/* ─── BILINGUAL ────────────────────────────────────────── */

[data-lang]:not(html):not(body) { display: none; }
html[data-lang="en"] [data-lang="en"]:not(html):not(body) { display: revert; }
html[data-lang="pt"] [data-lang="pt"]:not(html):not(body) { display: revert; }

/* For inline spans, revert→inline so they sit in flow */
html[data-lang="en"] span[data-lang="en"],
html[data-lang="pt"] span[data-lang="pt"] { display: inline; }

/* ─── ENTRANCE ─────────────────────────────────────────── */

.fade-in {
  opacity: 0;
  transform: translateY(10px);
  animation: fadeIn 0.8s cubic-bezier(0.2, 0.6, 0.2, 1) forwards;
}
section.fade-in:nth-of-type(1) { animation-delay: 0.05s; }
section.fade-in:nth-of-type(2) { animation-delay: 0.18s; }
section.fade-in:nth-of-type(3) { animation-delay: 0.31s; }
section.fade-in:nth-of-type(4) { animation-delay: 0.44s; }

@keyframes fadeIn {
  to { opacity: 1; transform: translateY(0); }
}

/* ─── REDUCED MOTION ───────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01s !important;
  }
  .pulse, .wordmark { animation: none; }
}