/* ============================================
   DESIGN SYSTEM
   Palette: Deep navy + electric cyan + off-white
   Type: Space Grotesk (display/body) + JetBrains Mono (code/terminal)
   Signature: Terminal widget in hero
============================================ */

:root {
  --navy:       #0a0e1a;
  --navy-mid:   #111827;
  --navy-light: #1c2639;
  --cyan:       #00d4ff;
  --cyan-dim:   #00a8cc;
  --cyan-glow:  rgba(0,212,255,.12);
  --white:      #f0f4f8;
  --muted:      #8899aa;
  --border:     rgba(255,255,255,.08);
  --radius:     6px;
  --ff-sans:    'Space Grotesk', sans-serif;
  --ff-mono:    'JetBrains Mono', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: var(--ff-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; }

/* ── NAV ────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; gap: 2rem;
  padding: 1.2rem 2.5rem;
  background: rgba(10,14,26,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  font-family: var(--ff-mono);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--white);
  text-decoration: none;
  letter-spacing: .05em;
}
.logo-bracket { color: var(--cyan); }
.nav-links {
  display: flex; gap: 2rem; list-style: none; margin-left: auto;
}
.nav-links a {
  color: var(--muted); text-decoration: none; font-size: .9rem;
  font-weight: 500; letter-spacing: .03em;
  transition: color .2s;
}
.nav-links a:hover { color: var(--white); }

/* ── BUTTONS ────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 1.6rem; border-radius: var(--radius);
  font-family: var(--ff-sans); font-weight: 600; font-size: .9rem;
  letter-spacing: .02em; text-decoration: none;
  border: none; cursor: pointer; transition: all .2s;
}
.btn-sm { padding: .5rem 1.1rem; font-size: .85rem; }
.btn-primary {
  background: var(--cyan); color: var(--navy);
}
.btn-primary:hover { background: var(--cyan-dim); transform: translateY(-1px); }
.btn-ghost {
  background: transparent; color: var(--white);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-full { width: 100%; justify-content: center; }

/* ── HERO ────────────────────────────────  */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 7rem 2.5rem 4rem;
  position: relative; overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 70% at 70% 50%, rgba(0,212,255,.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: .15;
}
.hero-grid {
  max-width: 1200px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center;
}
.eyebrow {
  font-family: var(--ff-mono); font-size: .78rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 1.2rem;
}
.hero-h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  font-weight: 700; line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 1.4rem;
}
.hero-sub {
  font-size: 1.05rem; color: var(--muted);
  max-width: 48ch; line-height: 1.8; margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Terminal */
.hero-terminal {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,.4), 0 0 0 1px var(--border);
}
.terminal-bar {
  background: var(--navy-mid);
  padding: .75rem 1rem;
  display: flex; align-items: center; gap: .5rem;
  border-bottom: 1px solid var(--border);
}
.t-dot { width: 12px; height: 12px; border-radius: 50%; }
.t-dot.red    { background: #ff5f57; }
.t-dot.yellow { background: #febc2e; }
.t-dot.green  { background: #28c840; }
.t-title {
  font-family: var(--ff-mono); font-size: .78rem;
  color: var(--muted); margin-left: .5rem;
}
.terminal-body { padding: 1.4rem 1.4rem 1.8rem; }
.t-line {
  font-family: var(--ff-mono); font-size: .82rem; line-height: 1.8;
}
.t-prompt { color: var(--cyan); margin-right: .5rem; }
.t-cmd { color: var(--white); }
.t-out { color: #6ee7b7; padding-left: 1.4rem; }
.t-cursor { animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

.hero-scroll {
  position: absolute; bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  font-family: var(--ff-mono); font-size: .7rem;
  color: var(--muted); letter-spacing: .1em;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100%{opacity:.3} 50%{opacity:1} }

/* ── STACK STRIP ────────────────────────── */
.stack-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.4rem 0;
  background: var(--navy-mid);
}
.stack-strip .container {
  display: flex; align-items: center; gap: 2rem; flex-wrap: wrap;
}
.strip-label {
  font-family: var(--ff-mono); font-size: .72rem;
  color: var(--muted); letter-spacing: .1em; text-transform: uppercase;
  white-space: nowrap;
}
.stack-items {
  display: flex; gap: 2rem; flex-wrap: wrap;
}
.stack-items span {
  font-size: .82rem; color: var(--muted);
  font-family: var(--ff-mono);
  padding: .25rem .7rem;
  border: 1px solid var(--border);
  border-radius: 4px;
}

/* ── SECTIONS ───────────────────────────── */
.section { padding: 7rem 0; }
.section-dark { background: var(--navy-mid); }
.section-head { text-align: center; margin-bottom: 4rem; }
.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700; letter-spacing: -.02em; line-height: 1.15;
  margin-top: .5rem;
}

/* ── SERVICES GRID ──────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.service-card {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  transition: border-color .2s, transform .2s;
}
.service-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}
.service-icon {
  width: 44px; height: 44px;
  color: var(--cyan);
  margin-bottom: 1.2rem;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 {
  font-size: 1.05rem; font-weight: 600; margin-bottom: .6rem;
}
.service-card p { font-size: .9rem; color: var(--muted); line-height: 1.7; }

/* ── ABOUT ──────────────────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: center;
}
.about-img-wrap { position: relative; }
.about-img {
  width: 100%; border-radius: 10px;
  border: 1px solid var(--border);
}
.about-img-placeholder {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 10px;
  aspect-ratio: 4/3;
  display: flex; align-items: center; justify-content: center;
}

/* Infra diagram */
.infra-diagram {
  display: flex; flex-direction: column; align-items: center; gap: 1.5rem;
}
.d-node {
  background: var(--navy-mid);
  border: 1px solid var(--cyan);
  border-radius: 8px;
  padding: .8rem 1.5rem;
  font-family: var(--ff-mono); font-size: .8rem;
  text-align: center; color: var(--white);
}
.d-core {
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-glow);
  font-weight: 600;
}
.d-arms { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center; }
.d-leaf { border-color: var(--border); font-size: .75rem; padding: .5rem 1rem; }
.about-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700; letter-spacing: -.02em;
  line-height: 1.15; margin: .5rem 0 1.2rem;
}
.about-text p { color: var(--muted); line-height: 1.8; margin-bottom: 1.5rem; }
.check-list { list-style: none; }
.check-list li {
  padding: .5rem 0;
  padding-left: 1.6rem;
  position: relative;
  color: var(--muted); font-size: .95rem;
  border-bottom: 1px solid var(--border);
}
.check-list li::before {
  content: '→';
  position: absolute; left: 0;
  color: var(--cyan);
}

/* ── CONTACT ────────────────────────────── */
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 5rem; align-items: start;
}
.contact-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700; letter-spacing: -.02em;
  line-height: 1.15; margin: .5rem 0 1.2rem;
}
.contact-text p { color: var(--muted); line-height: 1.8; margin-bottom: 2rem; }
.contact-details { display: flex; flex-direction: column; gap: 1rem; }
.contact-item {
  display: flex; align-items: center; gap: 1rem;
  color: var(--white); text-decoration: none; font-size: .95rem;
  transition: color .2s;
}
.contact-item:hover { color: var(--cyan); }
.contact-item svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--cyan); }

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.form-row { display: flex; flex-direction: column; gap: .4rem; }
.form-row label {
  font-size: .82rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase; color: var(--muted);
}
.form-row input,
.form-row textarea {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .85rem 1rem;
  color: var(--white);
  font-family: var(--ff-sans); font-size: .95rem;
  transition: border-color .2s;
  outline: none;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus { border-color: var(--cyan); }
.form-row input::placeholder,
.form-row textarea::placeholder { color: var(--muted); }

/* ── FORM NOTICES ───────────────────────── */
.form-notice {
  display: flex; align-items: flex-start; gap: 1rem;
  border-radius: 8px; padding: 1rem 1.2rem;
  font-size: .9rem; line-height: 1.6;
  margin-bottom: 1.2rem;
}
.form-notice svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: .1rem; }
.form-notice strong { display: block; font-weight: 600; margin-bottom: .1rem; }
.form-notice em { font-style: normal; font-weight: 600; color: var(--white); }
.form-notice-info {
  background: rgba(0,212,255,.08);
  border: 1px solid rgba(0,212,255,.25);
  color: #a0d4e8;
}
.form-notice-info svg { color: var(--cyan); }
.form-notice-ok {
  background: rgba(40,212,122,.08);
  border: 1px solid rgba(40,212,122,.25);
  color: #a0d8b8;
}
.form-notice-ok svg { color: #28d47a; }
.form-notice-err {
  background: rgba(255,85,85,.08);
  border: 1px solid rgba(255,85,85,.25);
  color: #e8a0a0;
}
.form-notice-err svg { color: #ff5555; }

/* ── FOOTER ─────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}
.footer .container {
  display: flex; align-items: center; gap: 1.5rem;
}
.footer p { color: var(--muted); font-size: .85rem; margin-left: .5rem; }
.footer-admin {
  margin-left: auto;
  font-size: .78rem; font-family: var(--ff-mono);
  color: var(--muted); text-decoration: none;
  opacity: .4; transition: opacity .2s;
}
.footer-admin:hover { opacity: 1; }

/* ── RESPONSIVE ─────────────────────────── */
@media (max-width: 900px) {
  .hero-grid,
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-terminal { display: none; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 580px) {
  .services-grid { grid-template-columns: 1fr; }
  .hero { padding: 6rem 1.2rem 3rem; }
  .section { padding: 5rem 0; }
}