/* ============================================================
   NexaStack — main.css
   Design: editorial dark, monospace accents, precise grid
   ============================================================ */

:root {
  --ink:     #0a0c10;
  --ink2:    #111318;
  --ink3:    #1a1d24;
  --border:  rgba(255,255,255,.07);
  --border2: rgba(255,255,255,.12);
  --text:    #e8eaf0;
  --text2:   #8b909e;
  --text3:   #555a68;
  --accent:  #00e5a0;
  --accent2: #0066ff;
  --red:     #ff4757;
  --yellow:  #ffd32a;
  --green:   #00e5a0;
  --font-b:  'Space Grotesk', sans-serif;
  --font-d:  'Instrument Serif', serif;
  --radius:  10px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { background: var(--ink); color: var(--text); font-family: var(--font-b); overflow-x: hidden; line-height: 1.6; }
a    { text-decoration: none; color: inherit; }
img  { max-width: 100%; display: block; }

/* ── Nav ──────────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(10,12,16,.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.nav-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 5%;
  display: flex; align-items: center; height: 64px; gap: 40px;
}
.nav-logo {
  font-family: var(--font-b); font-size: 1.1rem; font-weight: 700;
  letter-spacing: -.5px; color: var(--text);
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 28px; flex: 1; }
.nav-links a { font-size: .875rem; color: var(--text2); transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 8px 20px; background: var(--accent); color: var(--ink);
  border-radius: 8px; font-size: .85rem; font-weight: 600;
  transition: opacity .2s, transform .2s; white-space: nowrap;
}
.nav-cta:hover { opacity: .88; transform: translateY(-1px); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; background: var(--accent); color: var(--ink);
  border-radius: var(--radius); font-size: .95rem; font-weight: 700;
  border: none; cursor: pointer; font-family: var(--font-b);
  transition: opacity .2s, transform .2s;
}
.btn-primary:hover { opacity: .88; transform: translateY(-2px); }

.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; background: transparent;
  border: 1px solid var(--border2); color: var(--text2);
  border-radius: var(--radius); font-size: .95rem; font-weight: 500;
  cursor: pointer; font-family: var(--font-b);
  transition: border-color .2s, color .2s;
}
.btn-ghost:hover { border-color: var(--text); color: var(--text); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; padding: 120px 5% 80px;
  max-width: 1160px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center; position: relative;
}

/* Decorative vertical lines */
.hero-lines {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  display: flex; justify-content: space-around;
}
.h-line {
  width: 1px; background: linear-gradient(to bottom, transparent, rgba(255,255,255,.04), transparent);
  height: 100%;
}

.hero-inner { position: relative; z-index: 1; }
.hero-tag {
  display: inline-block; font-size: .72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .12em; color: var(--accent);
  border: 1px solid rgba(0,229,160,.25); border-radius: 20px;
  padding: 5px 14px; margin-bottom: 28px;
}
.hero h1 {
  font-family: var(--font-b); font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  font-weight: 700; line-height: 1.1; letter-spacing: -2px; margin-bottom: 20px;
}
.hero h1 em { font-family: var(--font-d); font-style: italic; color: var(--accent); font-weight: 400; }
.hero-sub { font-size: 1rem; color: var(--text2); line-height: 1.7; margin-bottom: 36px; max-width: 480px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 48px; }

.hero-stats { display: flex; align-items: center; gap: 0; }
.h-stat { padding: 0 20px; }
.h-stat:first-child { padding-left: 0; }
.h-stat-n { display: block; font-size: 1.4rem; font-weight: 700; color: var(--text); line-height: 1; }
.h-stat-l { display: block; font-size: .72rem; color: var(--text3); margin-top: 3px; }
.h-stat-div { width: 1px; height: 36px; background: var(--border2); }

/* ── Terminal widget ──────────────────────────────────────── */
.hero-visual { position: relative; z-index: 1; }
.term-window {
  background: var(--ink2);
  border: 1px solid var(--border2);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,.5);
}
.term-bar {
  background: var(--ink3); padding: 12px 16px;
  display: flex; align-items: center; gap: 8px;
  border-bottom: 1px solid var(--border);
}
.term-dot { width: 12px; height: 12px; border-radius: 50%; }
.term-dot.red    { background: #ff5f57; }
.term-dot.yellow { background: #ffbd2e; }
.term-dot.green  { background: #28ca41; }
.term-title { font-size: .72rem; color: var(--text3); margin-left: 8px; flex: 1; text-align: center; }
.term-body { padding: 20px; font-family: monospace; font-size: .82rem; line-height: 1.8; min-height: 220px; }
.term-line { display: flex; gap: 8px; opacity: 0; animation: termFade .3s ease forwards; }
.term-line .prompt { color: var(--accent); }
.term-line .cmd    { color: var(--text); }
.term-line .out    { color: var(--text2); }
.term-line .ok     { color: var(--green); }
.term-line .err    { color: var(--red); }
.term-cursor { display: inline-block; width: 8px; height: 14px; background: var(--accent); animation: blink .8s infinite; vertical-align: middle; }

@keyframes termFade { to { opacity: 1; } }
@keyframes blink    { 0%,100%{ opacity:1 } 50%{ opacity:0 } }

/* ── Services ─────────────────────────────────────────────── */
.services { padding: 100px 5%; max-width: 1160px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; font-size: .72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .12em; color: var(--accent);
  margin-bottom: 16px;
}
.section-header h2, .about-left h2, .contact-left h2 {
  font-family: var(--font-b); font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700; letter-spacing: -1px; line-height: 1.15; margin-bottom: 14px;
}
.section-header h2 em, .about-left h2 em, .contact-left h2 em {
  font-family: var(--font-d); font-style: italic; color: var(--accent); font-weight: 400;
}
.section-header p, .about-left p, .contact-left p { color: var(--text2); font-size: .95rem; max-width: 520px; margin: 0 auto; }

.services-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }

.service-card {
  background: var(--ink2); border: 1px solid var(--border);
  border-radius: 16px; padding: 32px;
  transition: border-color .3s, transform .3s;
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,229,160,.04), transparent);
  opacity: 0; transition: opacity .3s;
}
.service-card:hover { border-color: rgba(0,229,160,.3); transform: translateY(-4px); }
.service-card:hover::before { opacity: 1; }
.service-card.popular { border-color: rgba(0,229,160,.35); }

.sc-badge {
  display: inline-block; font-size: .68rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: .1em;
  background: rgba(0,229,160,.15); color: var(--accent);
  border: 1px solid rgba(0,229,160,.3); border-radius: 20px;
  padding: 3px 10px; margin-bottom: 14px;
}
.sc-name { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.sc-desc { font-size: .85rem; color: var(--text2); line-height: 1.6; margin-bottom: 24px; }
.sc-price {
  display: flex; align-items: baseline; gap: 4px; margin-bottom: 24px;
}
.sc-cur { font-size: 1.2rem; font-weight: 600; color: var(--text2); }
.sc-amount { font-size: 2.4rem; font-weight: 800; line-height: 1; letter-spacing: -2px; }
.sc-period { font-size: .82rem; color: var(--text3); }

.sc-features { display: flex; flex-direction: column; gap: 8px; margin-bottom: 28px; }
.sc-feat {
  display: flex; align-items: center; gap: 8px;
  font-size: .83rem; color: var(--text2);
}
.sc-feat::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

.sc-btn {
  width: 100%; padding: 12px; border-radius: var(--radius);
  font-size: .9rem; font-weight: 600; cursor: pointer;
  font-family: var(--font-b); transition: .2s; border: none;
}
.sc-btn-primary { background: var(--accent); color: var(--ink); }
.sc-btn-primary:hover { opacity: .88; }
.sc-btn-outline { background: transparent; border: 1px solid var(--border2); color: var(--text2); }
.sc-btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ── About ────────────────────────────────────────────────── */
.about { background: var(--ink2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 100px 5%; }
.about-inner { max-width: 1160px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.about-left p { margin-top: 14px; }

.about-steps { display: flex; flex-direction: column; gap: 0; }
.step {
  display: flex; gap: 24px; padding: 28px 0;
  border-bottom: 1px solid var(--border);
}
.step:last-child { border: none; }
.step-num { font-size: .72rem; font-weight: 700; color: var(--accent); letter-spacing: .08em; flex-shrink: 0; padding-top: 4px; }
.step-title { font-size: .95rem; font-weight: 700; margin-bottom: 6px; }
.step-desc  { font-size: .85rem; color: var(--text2); line-height: 1.6; }

/* ── Trust ────────────────────────────────────────────────── */
.trust { padding: 80px 5%; }
.trust-inner { max-width: 1160px; margin: 0 auto; display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.trust-item {
  display: flex; gap: 14px; padding: 24px;
  background: var(--ink2); border: 1px solid var(--border);
  border-radius: var(--radius);
}
.trust-item svg { width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; margin-top: 2px; }
.trust-item strong { display: block; font-size: .875rem; font-weight: 700; margin-bottom: 4px; }
.trust-item p { font-size: .78rem; color: var(--text2); line-height: 1.5; }

/* ── Contact ──────────────────────────────────────────────── */
.contact { padding: 100px 5%; }
.contact-inner { max-width: 1160px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.contact-left p { margin-top: 14px; }
.contact-info { display: flex; flex-direction: column; gap: 12px; margin-top: 32px; }
.ci-item {
  display: flex; align-items: center; gap: 10px;
  font-size: .875rem; color: var(--text2);
}
.ci-item svg { width: 16px; height: 16px; stroke: var(--accent); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.contact-form { display: flex; flex-direction: column; gap: 16px; }
.cf-group { display: flex; flex-direction: column; gap: 7px; }
.cf-group label { font-size: .73rem; font-weight: 600; color: var(--text2); text-transform: uppercase; letter-spacing: .06em; }
.cf-group input, .cf-group textarea {
  background: var(--ink2); border: 1px solid var(--border2);
  border-radius: var(--radius); padding: 12px 14px;
  color: var(--text); font-size: .9rem; font-family: var(--font-b);
  outline: none; transition: border-color .2s, box-shadow .2s; resize: none;
}
.cf-group input:focus, .cf-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,229,160,.12);
}
#cf-result {
  padding: 12px 16px; border-radius: var(--radius); font-size: .875rem; text-align: center;
}
#cf-result.ok  { background: rgba(0,229,160,.1); color: var(--green); border: 1px solid rgba(0,229,160,.2); }
#cf-result.err { background: rgba(255,71,87,.1); color: var(--red);   border: 1px solid rgba(255,71,87,.2); }

/* ── Footer ───────────────────────────────────────────────── */
.footer { padding: 52px 5%; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1160px; margin: 0 auto; text-align: center; }
.footer-logo { font-size: 1.2rem; font-weight: 700; letter-spacing: -.5px; margin-bottom: 8px; }
.footer-logo span { color: var(--accent); }
.footer-tag  { font-size: .82rem; color: var(--text3); margin-bottom: 20px; }
.footer-links { display: flex; justify-content: center; gap: 28px; margin-bottom: 20px; }
.footer-links a { font-size: .82rem; color: var(--text3); transition: color .2s; }
.footer-links a:hover { color: var(--text); }
.footer-copy { font-size: .75rem; color: var(--text3); }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero        { grid-template-columns: 1fr; padding-top: 100px; }
  .hero-visual { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .about-inner   { grid-template-columns: 1fr; gap: 48px; }
  .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .trust-inner   { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .hero h1 { letter-spacing: -1px; }
  .nav-links { display: none; }
  .trust-inner { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 16px; }
  .h-stat-div { display: none; }
}

/* ── Final polish layer ─────────────────────────────────── */
::selection{background:rgba(0,229,160,.24);color:#fff}
.nav{transition:box-shadow .25s,background .25s}
.nav.scrolled{box-shadow:0 10px 35px rgba(0,0,0,.22)}
.btn-primary,.btn-ghost,.nav-cta,.sc-btn{transition:transform .2s ease,opacity .2s ease,box-shadow .2s ease,border-color .2s ease}
.btn-primary:hover,.nav-cta:hover,.sc-btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,229,160,.14)}
.btn-ghost:hover,.sc-btn-outline:hover{transform:translateY(-2px)}
.service-card{transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.service-card:hover{transform:translateY(-5px);box-shadow:0 18px 50px rgba(0,0,0,.2)}
.service-card.popular{box-shadow:0 0 0 1px rgba(0,229,160,.16),0 18px 60px rgba(0,229,160,.06)}
input,textarea,select{transition:border-color .2s,box-shadow .2s,background .2s}
input:focus,textarea:focus,select:focus{border-color:var(--accent)!important;box-shadow:0 0 0 3px rgba(0,229,160,.1);outline:none}
@media(max-width:760px){
  .nav-inner{height:58px;gap:12px}
  .nav-links{display:none}
  .nav-cta{margin-left:auto;padding:8px 14px}
  .hero{padding-top:100px}
  .hero-inner{padding-left:5%;padding-right:5%}
  .hero h1{font-size:clamp(2.6rem,12vw,4.3rem)}
  .hero-actions{flex-wrap:wrap}
  .hero-visual{margin:25px 5% 0}
  .hero-stats{grid-template-columns:1fr 1fr;gap:16px}
  .h-stat-div{display:none}
  .services{padding-left:5%;padding-right:5%}
  .services-grid{grid-template-columns:1fr!important}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{scroll-behavior:auto!important;animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* ── Content pages (legal, about) ─────────────────────────── */
.page-hero { padding: 140px 5% 40px; max-width: 820px; margin: 0 auto; }
.page-tag { font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.page-hero h1 { font-size: clamp(2rem, 5vw, 2.6rem); letter-spacing: -.03em; margin-bottom: 10px; }
.page-updated { font-size: .82rem; color: var(--text3); }
.page-content { max-width: 820px; margin: 0 auto; padding: 0 5% 100px; line-height: 1.75; }
.page-content h2 { font-size: 1.15rem; margin: 36px 0 12px; }
.page-content p, .page-content li { color: var(--text2); font-size: .92rem; }
.page-content ul { padding-left: 20px; margin-top: 8px; }
.page-content li { margin-bottom: 6px; }
.page-content a { color: var(--accent); }
.page-back { display: inline-block; margin-top: 18px; font-size: .85rem; color: var(--text3); }
.page-back:hover { color: var(--text); }
@media(max-width:600px){
  .page-hero { padding-top: 100px; }
}