/* ---------- Tokens ---------- */
:root {
  --bg: #050a2c;
  --bg-alt: #070d36;
  --surface: rgba(255, 255, 255, .04);
  --surface-hover: rgba(255, 255, 255, .07);
  --text: #ffffff;
  --muted: #b7bdd8;
  --border: rgba(255, 255, 255, .14);
  --line: rgba(255, 255, 255, .75);
  --glow-blue: rgba(36, 92, 190, .55);
  --glow-red: rgba(150, 50, 45, .55);
  --accent: #7fb0ff;
  --accent-warm: #ff8a70;
  --code-bg: #02051a;
  --code-text: #dce6ff;
  --radius: 14px;
  --font: "Urbanist", system-ui, -apple-system, "Segoe UI", sans-serif;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.125rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-weight: 800; line-height: 1.1; margin: 0 0 .5em; }
p { margin: 0 0 1em; }
a { color: var(--accent); }
code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: .85em;
  background: rgba(127, 176, 255, .14);
  color: #d5e4ff;
  padding: .1em .35em;
  border-radius: 4px;
}

.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: #fff;
  color: var(--bg);
  font: inherit;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .95rem;
  text-decoration: none;
  padding: .85em 1.6em;
  border-radius: 999px;
  border: 2px solid #fff;
  cursor: pointer;
  transition: background .2s, color .2s, transform .2s, box-shadow .2s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 0 24px rgba(127, 176, 255, .45); }
.btn-ghost { background: transparent; color: #fff; border-color: var(--line); }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); }
.btn-small { padding: .5em 1.2em; font-size: .85rem; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(5, 10, 44, .8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 800; font-size: 1.35rem; color: var(--text); text-decoration: none; text-transform: uppercase; letter-spacing: .03em; }
.logo span { color: var(--accent-warm); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a:not(.btn) { color: var(--muted); text-decoration: none; font-weight: 600; text-transform: uppercase; font-size: .9rem; letter-spacing: .06em; }
.nav-links a:not(.btn):hover { color: var(--text); }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; transition: transform .25s, opacity .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  min-height: min(88vh, 720px);
  display: grid;
  align-items: center;
  text-align: center;
  padding: 90px 0;
  background:
    radial-gradient(ellipse 45% 55% at 12% 15%, var(--glow-blue), transparent 70%),
    radial-gradient(ellipse 40% 50% at 92% 85%, var(--glow-red), transparent 70%),
    linear-gradient(160deg, #0a1446 0%, var(--bg) 55%, #0c0a2c 100%);
}
.hero .container { position: relative; }
.circuit { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.circuit path { fill: none; stroke: var(--line); stroke-width: 1.4; }
.circuit circle { fill: var(--bg); stroke: var(--line); stroke-width: 1.4; }

.eyebrow {
  display: inline-block;
  color: var(--muted);
  font-weight: 600;
  font-size: .85rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  margin-bottom: 1.4em;
}
.hero h1 {
  font-size: clamp(2.6rem, 7.5vw, 5rem);
  text-transform: uppercase;
  letter-spacing: .01em;
  margin: 0 auto;
}
.hero h1 em { font-style: normal; font-size: .72em; }
.lead { font-size: 1.3rem; color: var(--text); font-weight: 500; max-width: 40ch; margin: 1.2em auto 2.2em; opacity: .92; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section-alt {
  background:
    radial-gradient(ellipse 40% 60% at 0% 0%, rgba(36, 92, 190, .22), transparent 70%),
    radial-gradient(ellipse 35% 55% at 100% 100%, rgba(150, 50, 45, .22), transparent 70%),
    var(--bg-alt);
}
.section-title {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  text-transform: uppercase;
  letter-spacing: .02em;
  text-align: center;
}
/* Small circuit trace under each section title */
.section-title::after {
  content: "";
  display: block;
  width: 140px; height: 8px;
  margin: 18px auto 0;
  background:
    radial-gradient(circle, var(--bg) 2px, var(--line) 2.5px, var(--line) 3.5px, transparent 4px) left center / 8px 8px no-repeat,
    radial-gradient(circle, var(--bg) 2px, var(--line) 2.5px, var(--line) 3.5px, transparent 4px) right center / 8px 8px no-repeat,
    linear-gradient(var(--line), var(--line)) center / calc(100% - 14px) 1.4px no-repeat;
}
.section-intro { color: var(--muted); max-width: 55ch; margin: 0 auto 3em; text-align: center; }

/* ---------- Service cards ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 24px;
  transition: transform .2s, border-color .2s, background .2s;
}
.card:hover { transform: translateY(-3px); border-color: var(--accent); background: var(--surface-hover); }
.card h3 { font-size: 1.25rem; text-transform: uppercase; letter-spacing: .03em; }
.card p { color: var(--muted); font-size: 1.02rem; }
.card-icon {
  width: 50px; height: 50px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  margin-bottom: 20px;
}
.card-icon svg { width: 24px; height: 24px; fill: none; stroke: #fff; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.card-list { list-style: none; padding: 0; margin: 0; font-size: .98rem; }
.card-list li { padding-left: 1.4em; position: relative; margin-bottom: .35em; }
.card-list li::before {
  content: "";
  position: absolute; left: 0; top: .6em;
  width: 7px; height: 7px;
  border: 1.4px solid var(--accent);
  border-radius: 50%;
}

/* ---------- Tips ---------- */
.tips { display: grid; gap: 12px; max-width: 820px; margin: 0 auto; }
.tip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 22px;
  transition: border-color .2s, background .2s;
}
.tip[open] { border-color: var(--accent); background: var(--surface-hover); }
.tip summary {
  display: flex; align-items: center; gap: 18px;
  padding: 18px 0;
  font-weight: 700;
  font-size: 1.15rem;
  cursor: pointer;
  list-style: none;
}
.tip summary::-webkit-details-marker { display: none; }
.tip summary::after { content: "+"; margin-left: auto; font-size: 1.6rem; font-weight: 400; color: var(--accent); transition: transform .2s; }
.tip[open] summary::after { transform: rotate(45deg); }
.tip-num { color: var(--accent-warm); font-size: 1.3rem; font-weight: 800; min-width: 2ch; }
.tip p { color: var(--muted); }
.tip pre {
  background: var(--code-bg);
  color: var(--code-text);
  border: 1px solid var(--border);
  padding: 16px 18px;
  border-radius: 10px;
  overflow-x: auto;
  margin: 0 0 1.2em;
  font-size: .9rem;
  line-height: 1.5;
}
.tip pre code { background: none; padding: 0; color: inherit; font-size: inherit; }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: start; }
.about .section-title { text-align: left; }
.about .section-title::after { margin-left: 0; }
.about p { color: var(--muted); }
.about strong { color: var(--text); }
.how { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; }
.how h3 { text-transform: uppercase; letter-spacing: .04em; font-size: 1.2rem; margin-bottom: 1em; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: step; position: relative; padding-left: 52px; margin-bottom: 20px; color: var(--muted); }
.steps li:last-child { margin-bottom: 0; }
.steps li::before {
  content: "0" counter(step);
  position: absolute; left: 0; top: -.1em;
  color: var(--accent-warm);
  font-weight: 800;
  font-size: 1.3rem;
}
.steps strong { color: var(--text); }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: start; }
.contact .section-title, .contact .section-intro { text-align: left; margin-left: 0; }
.contact .section-title::after { margin-left: 0; }
.contact-form {
  display: grid; gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
}
.contact-form label { display: grid; gap: 6px; font-weight: 600; font-size: .9rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.contact-form input, .contact-form select, .contact-form textarea {
  font: inherit;
  font-size: 1.05rem;
  text-transform: none;
  letter-spacing: normal;
  color: var(--text);
  background: rgba(2, 5, 26, .6);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .7em .9em;
  width: 100%;
}
.contact-form select option { background: var(--bg); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent;
}
.contact-form .invalid { border-color: var(--accent-warm); }
.form-status { margin: 0; font-size: .95rem; color: var(--muted); min-height: 1.5em; }
.form-status.error { color: var(--accent-warm); }

/* ---------- Footer ---------- */
.site-footer { padding: 32px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; text-align: center; letter-spacing: .04em; }
.site-footer p { margin: 0; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Mobile ---------- */
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 20px 20px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a:not(.btn) { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-links .btn { margin-top: 14px; text-align: center; }
  .hero { min-height: 0; padding: 80px 0 70px; }
  .circuit { opacity: .35; }
  .section { padding: 68px 0; }
  .about, .contact { grid-template-columns: 1fr; gap: 36px; }
}

/* ---------- Spam trap (hidden contact field) ---------- */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.btn:disabled { opacity: .6; cursor: wait; transform: none; box-shadow: none; }

/* ---------- Admin inbox ---------- */
.admin main { min-height: calc(100vh - 64px); }
.admin-notice {
  max-width: 560px; margin: 0 auto;
  padding: 18px 22px;
  border: 1px solid var(--accent-warm);
  border-radius: var(--radius);
  color: var(--accent-warm);
  text-align: center;
}
.login-form { max-width: 420px; margin: 0 auto; }
.inbox-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 32px; }
.inbox-head .section-title { text-align: left; margin: 0; }
.inbox-head .section-title::after { margin-left: 0; }
.inbox-tools { display: flex; align-items: center; gap: 14px; }
.inbox-count { color: var(--muted); font-size: .95rem; }
.messages { display: grid; gap: 14px; }
.messages-empty { color: var(--muted); text-align: center; padding: 40px 0; }
.message {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid transparent;
  border-radius: var(--radius);
  padding: 22px 24px;
}
.message.unread { border-left-color: var(--accent-warm); background: var(--surface-hover); }
.message-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 20px; margin-bottom: 12px; }
.message-name { font-size: 1.15rem; margin: 0; }
.message-email { font-size: .95rem; text-decoration: none; }
.message-email:hover { text-decoration: underline; }
.message-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; font-size: .88rem; color: var(--muted); }
.message-topic { color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.message-body { white-space: pre-wrap; overflow-wrap: anywhere; color: var(--text); opacity: .9; }
.message-actions { display: flex; flex-wrap: wrap; gap: 8px; }
@media (max-width: 760px) {
  .message-meta { align-items: flex-start; }
}