/* ============================================================================
   CODED Cyber Range — SHARED DESIGN SYSTEM  (canonical, frozen)
   ----------------------------------------------------------------------------
   One cohesive dark "training-lab" design language across all 4 recon
   challenges. Each challenge copies this file (or inlines it, for the flask
   apps) and layers a small challenge-specific block on top — same family,
   different cover story.

   HARD RULE: zero external requests. System-font stacks only. No @import,
   no url(https://...), no CDN, no web fonts, no remote images. Backgrounds
   are pure CSS gradients. Verified by a Playwright network-fence check.
   ============================================================================ */

:root {
  /* Surfaces */
  --bg:        #0a0e15;
  --bg-2:      #0d1320;
  --elev:      #121a28;
  --card:      #151e2e;
  --card-2:    #18233570;
  --border:    #243044;
  --border-2:  #2f3e57;

  /* Text */
  --text:      #e7eef7;
  --text-2:    #aab6c6;
  --muted:     #6c7b90;

  /* Accent (per-challenge overridable — default teal) */
  --accent:    #35d6be;
  --accent-2:  #6ea8fe;
  --accent-ink:#052b26;
  --glow:      rgba(53, 214, 190, 0.22);

  /* Semantic */
  --danger:    #ff5c7a;
  --danger-bg: #2a1420;
  --warn:      #ffcf6b;
  --ok:        #4ade80;

  /* Type */
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
          "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas,
          "Liberation Mono", "Courier New", monospace;

  /* Shape / motion */
  --radius:    14px;
  --radius-sm: 9px;
  --shadow:    0 10px 30px -12px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 30px 60px -24px rgba(0, 0, 0, 0.75);
  --ring:      0 0 0 1px var(--border), 0 0 0 4px var(--glow);
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(53, 214, 190, 0.10), transparent 60%),
    radial-gradient(900px 560px at -6% 12%, rgba(110, 168, 254, 0.09), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---- Layout helpers ---- */
.wrap { width: min(1120px, 92vw); margin-inline: auto; }
.section { padding: clamp(3rem, 8vw, 6rem) 0; }
.center { text-align: center; }
.stack > * + * { margin-top: 1rem; }
.grid { display: grid; gap: 1.25rem; }
.eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---- Top nav ---- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 5vw, 3rem);
  background: rgba(9, 13, 20, 0.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand {
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 700; letter-spacing: -0.01em; color: var(--text);
  text-decoration: none;
}
.brand .dot {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--glow);
}
.nav-links { display: flex; gap: 0.35rem; list-style: none; align-items: center; }
.nav-links a {
  color: var(--text-2); text-decoration: none; font-size: 0.92rem;
  padding: 0.45rem 0.8rem; border-radius: var(--radius-sm);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--card-2); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.72rem 1.25rem; border-radius: var(--radius-sm);
  font: inherit; font-weight: 600; cursor: pointer;
  text-decoration: none; border: 1px solid transparent;
  transition: transform 0.15s var(--ease), box-shadow 0.2s var(--ease),
              background 0.2s var(--ease), border-color 0.2s var(--ease);
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--accent) 78%, #000));
  color: var(--accent-ink);
  box-shadow: 0 8px 24px -10px var(--glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -10px var(--glow); }
.btn-ghost {
  background: transparent; color: var(--text); border-color: var(--border-2);
}
.btn-ghost:hover { background: var(--card-2); border-color: var(--accent); }

/* ---- Cards ---- */
.card {
  background: linear-gradient(180deg, var(--card), var(--elev));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease),
              box-shadow 0.25s var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-2);
  box-shadow: var(--shadow-lg);
}
.card h3 { color: var(--text); margin-bottom: 0.4rem; }
.card p { color: var(--text-2); }

/* ---- Hero ---- */
.hero { padding: clamp(3.5rem, 10vw, 7rem) 0 clamp(2.5rem, 6vw, 4rem); }
.hero h1 {
  font-size: clamp(2.1rem, 6vw, 3.7rem);
  line-height: 1.05; letter-spacing: -0.02em; margin: 0.8rem 0 1rem;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { color: var(--text-2); font-size: clamp(1rem, 2.4vw, 1.2rem); max-width: 54ch; }
.cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.75rem; }

/* ---- Chips / tags ---- */
.chip {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: var(--mono); font-size: 0.75rem;
  padding: 0.3rem 0.6rem; border-radius: 999px;
  background: var(--card-2); border: 1px solid var(--border);
  color: var(--text-2);
}

/* ---- Forms ---- */
.field { display: flex; flex-direction: column; gap: 0.4rem; text-align: left; }
.field label { font-size: 0.85rem; color: var(--text-2); font-weight: 600; }
.input {
  width: 100%; padding: 0.8rem 0.95rem;
  background: var(--bg-2); color: var(--text);
  border: 1px solid var(--border-2); border-radius: var(--radius-sm);
  font: inherit; transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.input::placeholder { color: var(--muted); }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--glow); }

/* ---- Flag reveal (the satisfying "captured" moment) ---- */
.flag-reveal {
  margin-top: 1.25rem;
  padding: 1.25rem 1.4rem;
  border-radius: var(--radius);
  background:
    radial-gradient(500px 200px at 20% 0%, var(--glow), transparent 70%),
    linear-gradient(180deg, #0e1a1f, #0c151b);
  border: 1px solid color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: 0 0 0 1px var(--glow), var(--shadow-lg);
}
.flag-reveal .label {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--accent);
}
.flag-code {
  display: block; margin-top: 0.5rem;
  font-family: var(--mono); font-size: clamp(1rem, 3.4vw, 1.5rem);
  font-weight: 700; color: var(--text);
  word-break: break-all;
}

/* ---- Alert cards (denied / notice) ---- */
.alert {
  display: flex; gap: 0.9rem; align-items: flex-start;
  padding: 1.1rem 1.25rem; border-radius: var(--radius);
  border: 1px solid var(--border);
}
.alert-danger {
  background: linear-gradient(180deg, var(--danger-bg), #1a0f16);
  border-color: color-mix(in srgb, var(--danger) 45%, var(--border));
  color: #ffd7df;
}
.alert-danger .alert-title { color: var(--danger); font-weight: 700; }
.alert .icon {
  flex: none; width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center; font-weight: 800;
  background: color-mix(in srgb, var(--danger) 22%, transparent);
  color: var(--danger);
}

/* ---- Footer ---- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0; margin-top: 3rem;
  color: var(--muted); font-size: 0.86rem;
}
.footer .wrap { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: space-between; }
.footer .range-tag { font-family: var(--mono); color: var(--text-2); }
.footer .range-tag b { color: var(--accent); font-weight: 700; }

/* ---- Utility ---- */
.muted { color: var(--muted); }
.mono  { font-family: var(--mono); }
a { color: var(--accent-2); }

@media (max-width: 720px) {
  .nav-links { display: none; }
}

/* ---- devslip specifics ---- */

/* Accent override — violet-blue, stays in the teal→blue→violet family */
:root {
  --accent:     #7c6dff;
  --accent-2:   #a78bfa;
  --accent-ink: #0d0b2a;
  --glow:       rgba(124, 109, 255, 0.22);
}

/* Background glow tinted to match new accent */
body {
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(124, 109, 255, 0.10), transparent 60%),
    radial-gradient(900px 560px at -6% 12%, rgba(167, 139, 250, 0.08), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

/* ---- Status badge (hero) ---- */
.status-badge {
  display: inline-flex; align-items: center; gap: 0.6rem;
  margin-top: 1.5rem;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  background: var(--card-2);
  border: 1px solid var(--border);
  font-size: 0.82rem; color: var(--text-2);
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.2);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(74, 222, 128, 0.2); }
  50%       { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0.08); }
}

/* ---- About section ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.about-text h2 {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  line-height: 1.15; letter-spacing: -0.02em;
  margin: 0.6rem 0 1rem;
}
.about-text h2 em { font-style: normal; color: var(--accent); }
.about-text p { color: var(--text-2); margin-bottom: 0.9rem; }
.about-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.25rem; }

.avatar-ring {
  width: 160px; height: 160px; border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    var(--accent) 0%,
    var(--accent-2) 40%,
    var(--border) 60%,
    var(--accent) 100%
  );
  padding: 3px;
  margin: 0 auto 1.5rem;
  display: grid; place-items: center;
}
.avatar-initials {
  width: 100%; height: 100%; border-radius: 50%;
  background: var(--card);
  display: grid; place-items: center;
  font-size: 2.4rem; font-weight: 800; letter-spacing: -0.02em;
  background: radial-gradient(circle at 30% 30%, var(--elev), var(--bg-2));
  color: var(--accent);
}
.about-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem; text-align: center;
}
.stat-item {
  background: var(--card-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.65rem 0.4rem;
}
.stat-num {
  display: block; font-size: 1.5rem; font-weight: 800;
  letter-spacing: -0.03em; color: var(--accent);
  line-height: 1.1;
}
.stat-label { font-size: 0.72rem; color: var(--muted); margin-top: 0.2rem; }

/* ---- Section headings ---- */
.section-head { margin-bottom: clamp(2rem, 5vw, 3.5rem); }
.section-head h2 {
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  letter-spacing: -0.02em; margin: 0.4rem 0 0.65rem;
}
.lead-sm { color: var(--text-2); max-width: 52ch; margin-inline: auto; }

/* ---- Projects ---- */
.projects-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

.project-card {
  display: flex; flex-direction: column; gap: 0;
  padding: 0; overflow: hidden;
}
.project-thumb {
  height: 120px;
  display: grid; place-items: center;
  border-bottom: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.thumb-1 { background: linear-gradient(135deg, #0d1a2e 0%, #1a0d2e 100%); }
.thumb-2 { background: linear-gradient(135deg, #0d1e1a 0%, #0d2014 100%); }
.thumb-3 { background: linear-gradient(135deg, #1e0d1a 0%, #2e0d18 100%); }
.thumb-4 { background: linear-gradient(135deg, #0d161e 0%, #0d1a28 100%); }
.thumb-icon {
  color: var(--accent); opacity: 0.85;
  filter: drop-shadow(0 0 12px var(--glow));
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.project-card:hover .thumb-icon { transform: scale(1.12); opacity: 1; }

.project-body { padding: 1.25rem 1.4rem 0.75rem; flex: 1; }
.project-body h3 { font-size: 1rem; margin-bottom: 0.4rem; }
.project-body p  { font-size: 0.88rem; line-height: 1.55; }

.chip-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }

.project-footer {
  padding: 0.75rem 1.4rem 1.1rem;
  border-top: 1px solid var(--border);
  margin-top: 0.75rem;
}
.project-meta { font-size: 0.78rem; color: var(--muted); font-family: var(--mono); }

/* ---- Stack section ---- */
.stack-grid {
  display: grid; gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.stack-group-label {
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
  margin-bottom: 0.75rem;
}
.stack-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.stack-chip { font-size: 0.8rem; padding: 0.35rem 0.75rem; }

/* Coloured chip-icon dots (pure CSS, no images) */
.chip-icon {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
}
.chip-react   { background: #61dafb; }
.chip-ts      { background: #3178c6; }
.chip-next    { background: #e7eef7; }
.chip-vue     { background: #42b883; }
.chip-css     { background: #264de4; }
.chip-node    { background: #6cc24a; }
.chip-py      { background: #ffd343; }
.chip-pg      { background: #336791; }
.chip-redis   { background: #d82c20; }
.chip-gql     { background: #e535ab; }
.chip-docker  { background: #2496ed; }
.chip-gh      { background: #e7eef7; }
.chip-nginx   { background: #009639; }
.chip-linux   { background: #fcc624; }
.chip-git     { background: #f05033; }

/* ---- Contact ---- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  margin-top: 2rem;
}
.contact-info { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-method {
  display: flex; align-items: flex-start; gap: 1rem;
  padding: 1rem 1.1rem;
  background: var(--card-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.contact-icon {
  flex: none; width: 38px; height: 38px; border-radius: 9px;
  background: linear-gradient(135deg, var(--card), var(--elev));
  border: 1px solid var(--border-2);
  display: grid; place-items: center; color: var(--accent);
}
.contact-label { font-size: 0.75rem; color: var(--muted); margin-bottom: 0.15rem; }
.contact-value { font-size: 0.9rem; color: var(--text); }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.textarea { resize: vertical; min-height: 120px; }
.btn-full { width: 100%; justify-content: center; }
.form-note { font-size: 0.78rem; color: var(--muted); text-align: center; }

/* ---- Mobile nav menu ---- */
.nav-menu-btn { display: none; padding: 0.5rem; }
.mobile-menu {
  display: none;
  position: fixed; inset: 0; z-index: 49;
  background: rgba(9, 13, 20, 0.97);
  backdrop-filter: blur(14px);
  padding: 5rem 2rem 2rem;
}
.mobile-menu.open { display: block; }
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.mobile-menu a {
  display: block; padding: 1rem 1.25rem;
  font-size: 1.4rem; font-weight: 700;
  color: var(--text); text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}
.mobile-menu a:hover { background: var(--card-2); color: var(--accent); }

/* ---- Scroll-reveal (progressive enhancement: only hides when JS is active,
   so a no-JS browser always sees the full page) ---- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}
html.js [data-reveal].visible {
  opacity: 1;
  transform: none;
}

/* ---- Responsive breakpoints ---- */
@media (max-width: 900px) {
  .about-grid       { grid-template-columns: 1fr; }
  .about-avatar     { max-width: 320px; margin: 0 auto; }
  .contact-layout   { grid-template-columns: 1fr; }
  .form-row         { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav-menu-btn     { display: inline-flex; }
  .projects-grid    { grid-template-columns: 1fr; }
}