/* TBM — landing (industrial field-ops, bukan template SaaS) */

:root {
  --bg: #0a0c0f;
  --surface: #12161c;
  --surface-2: #1a2029;
  --line: rgba(255, 255, 255, 0.07);
  --text: #e6e8eb;
  --muted: #8a9199;
  --amber: #e8a020;
  --amber-dim: rgba(232, 160, 32, 0.14);
  --blue: #4a9eff;
  --green: #3ecf8e;
  --font-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", monospace;
  --max: 1120px;
  --nav-h: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

/* hazard stripe — subtle, bukan dekorasi generik */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.035;
  background: repeating-linear-gradient(
    -35deg,
    transparent,
    transparent 18px,
    #e8a020 18px,
    #e8a020 20px
  );
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 75%);
}

.wrap {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 2.5rem));
  margin-inline: auto;
}

/* nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  border-bottom: 1px solid var(--line);
  background: rgba(10, 12, 15, 0.88);
  backdrop-filter: blur(10px);
}

.site-nav .wrap {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.04em;
}

.brand:hover {
  text-decoration: none;
  color: var(--amber);
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--amber);
  color: var(--amber) !important;
  font-size: 0.88rem !important;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nav-cta:hover {
  background: var(--amber-dim);
  text-decoration: none !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--text);
  padding: 0.35rem 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  cursor: pointer;
}

/* hero */
.hero {
  padding: clamp(3rem, 8vw, 6rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--amber);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--amber);
}

.hero h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 9vw, 5.5rem);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero h1 span {
  display: block;
  color: var(--muted);
  font-size: 0.55em;
  margin-top: 0.15em;
}

.hero-lead {
  margin: 0 0 1.75rem;
  max-width: 34ch;
  color: var(--muted);
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background: var(--amber);
  color: #0a0c0f;
}

.btn-primary:hover {
  background: #f0b040;
  color: #0a0c0f;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: var(--surface);
  color: var(--text);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.meta-item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.meta-item strong {
  display: block;
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 0.15rem;
}

/* terminal mock — CSS only, bukan screenshot stock */
.terminal {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
}

.terminal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3a3f48;
}

.terminal-dot.live {
  background: var(--green);
  box-shadow: 0 0 8px rgba(62, 207, 142, 0.5);
}

.terminal-body {
  padding: 1.1rem 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.7;
}

.t-line {
  display: flex;
  gap: 0.65rem;
  margin-bottom: 0.35rem;
}

.t-time {
  color: #5c6370;
  flex-shrink: 0;
}

.t-ok {
  color: var(--green);
}

.t-warn {
  color: var(--amber);
}

.t-dim {
  color: var(--muted);
}

.terminal-status {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
}

.status-cell {
  background: var(--surface-2);
  padding: 0.75rem 0.85rem;
}

.status-cell span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.status-cell strong {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
}

/* sections */
section {
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.section-head {
  margin-bottom: 2.5rem;
}

.section-head h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 400;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.section-head p {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
}

/* feature rows — numbered, bukan icon grid */
.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.feature-list li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1.25rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
}

.feature-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  line-height: 1;
  color: var(--amber);
  opacity: 0.85;
}

.feature-list h3 {
  margin: 0 0 0.35rem;
  font-size: 1.15rem;
  font-weight: 600;
}

.feature-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

/* flow */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.flow-step {
  background: var(--surface);
  padding: 1.5rem 1.25rem;
}

.flow-step .step-n {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--amber);
  margin-bottom: 0.75rem;
}

.flow-step h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.flow-step p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

/* dual audience */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.audience-card {
  background: var(--surface);
  padding: 2rem 1.75rem;
}

.audience-card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.audience-card p {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.audience-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.audience-card li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.45rem;
  font-size: 0.92rem;
  color: var(--text);
}

.audience-card li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--amber);
}

/* footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  margin-top: 1rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-inner p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
}

/* responsive */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .terminal {
    order: -1;
  }

  .flow-grid {
    grid-template-columns: 1fr 1fr;
  }

  .audience-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem;
    background: rgba(10, 12, 15, 0.97);
    border-bottom: 1px solid var(--line);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .flow-grid {
    grid-template-columns: 1fr;
  }

  .feature-list li {
    grid-template-columns: 2.5rem 1fr;
    gap: 0.85rem;
  }
}