/* ============================================================
   DESIGN SYSTEM — BEN HAMMOUDA NOUR
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;1,9..144,300;1,9..144,400&family=DM+Mono:ital,wght@0,300;0,400;0,500;1,300&display=swap');

:root {
  --bg:        #0C0C0D;
  --bg-subtle: #111113;
  --surface:   #161618;
  --border:    #222226;
  --text:      #E8E6E1;
  --muted:     #6B6966;
  --faint:     #2A2A2E;
  --accent:    #C8A96E;
  --accent-dim:#7A6540;
  --danger:    #C86E6E;

  --font-display: 'Fraunces', Georgia, serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  --space-xs:  0.375rem;
  --space-sm:  0.75rem;
  --space-md:  1.25rem;
  --space-lg:  2.5rem;
  --space-xl:  5rem;
  --space-2xl: 9rem;

  --max-w: 900px;
  --nav-h: 64px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.75;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.35;
}

/* ── Typography ── */
h1, h2, h3 { font-family: var(--font-display); font-weight: 300; letter-spacing: -0.02em; line-height: 1.1; }
a { color: inherit; text-decoration: none; }
p { color: var(--muted); line-height: 1.8; }
strong { color: var(--text); font-weight: 500; }

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
}
section { padding: var(--space-2xl) 0; }

.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
  max-width: 120px;
}

/* ── Navigation ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background 0.4s, border-color 0.4s;
}
nav.scrolled {
  background: rgba(12, 12, 13, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  transition: color 0.2s;
}
.nav-logo span { color: var(--accent); }
.nav-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}
.nav-links a {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease-out);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  color: var(--muted);
  background: transparent;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  cursor: pointer;
}
.btn:hover { border-color: var(--accent); color: var(--accent); background: rgba(200,169,110,0.04); }
.btn.primary { border-color: var(--accent-dim); color: var(--accent); }
.btn.primary:hover { background: rgba(200,169,110,0.08); }
.btn svg { width: 12px; height: 12px; stroke: currentColor; fill: none; transition: transform 0.2s; }
.btn:hover svg { transform: translate(2px, -2px); }

/* ── Tags ── */
.tag {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11px;
  letter-spacing: 0.06em;
  border: 1px solid var(--faint);
  color: var(--muted);
  transition: border-color 0.2s, color 0.2s;
}
.tag.offensive { border-color: rgba(200,110,110,0.3); color: var(--danger); }
.tag.defense   { border-color: rgba(110,180,200,0.3); color: #6EB4C8; }
.tag.research  { border-color: rgba(200,169,110,0.3); color: var(--accent); }

/* ── Scroll Reveal ── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── Footer ── */
footer { border-top: 1px solid var(--border); padding: var(--space-lg) 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-md); }
.footer-links { display: flex; gap: var(--space-lg); list-style: none; }
.footer-links a { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-size: 11px; color: var(--faint); letter-spacing: 0.05em; }
.pgp-fingerprint { font-size: 11px; color: var(--faint); letter-spacing: 0.08em; }
.pgp-fingerprint span { color: var(--accent-dim); }

/* ── Page Header ── */
.page-header { padding-top: calc(var(--nav-h) + var(--space-xl)); padding-bottom: var(--space-xl); border-bottom: 1px solid var(--border); }
.page-header .overline { font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--accent); margin-bottom: var(--space-md); }

/* ── Table List ── */
.item-list { width: 100%; border-collapse: collapse; }
.item-list tr { border-bottom: 1px solid var(--border); position: relative; transition: background 0.15s; }
.item-list tr:first-child { border-top: 1px solid var(--border); }
.item-list tr td { padding: 1.2rem 0; vertical-align: middle; }
.item-list .num { width: 3rem; color: var(--faint); font-size: 12px; letter-spacing: 0.05em; }
.item-list .title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 400; color: var(--text); padding-right: 2rem; transition: color 0.2s; }
.item-list tr:hover .title { color: var(--accent); }
.item-list .tags { padding-right: 1.5rem; }
.item-list .tags .tag { margin-right: 4px; }
.item-list .arrow { text-align: right; width: 2rem; color: var(--faint); font-size: 16px; transition: color 0.2s, transform 0.2s; }
.item-list tr:hover .arrow { color: var(--accent); transform: translate(2px, -2px); }
.item-list tr::before { content: ''; position: absolute; left: 0; bottom: -1px; width: 0; height: 1px; background: var(--accent); transition: width 0.4s var(--ease-out); }
.item-list tr:hover::before { width: 100%; }

/* ── Credentials ── */
.cred-strip { display: flex; flex-wrap: wrap; gap: var(--space-md); align-items: center; }
.cred { display: flex; align-items: center; gap: 0.5rem; font-size: 12px; letter-spacing: 0.06em; color: var(--muted); padding: 0.4rem 0.9rem; border: 1px solid var(--faint); transition: border-color 0.2s, color 0.2s; }
.cred:hover { border-color: var(--accent-dim); color: var(--text); }
.cred .dot { width: 5px; height: 5px; background: var(--accent); border-radius: 50%; flex-shrink: 0; }

/* ── Request link ── */
.request-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.06em;
  transition: color 0.2s;
  padding: 3px 8px;
  border: 1px solid var(--faint);
  white-space: nowrap;
}
.request-link:hover { color: var(--accent); border-color: var(--accent-dim); }
.request-link svg { width: 10px; height: 10px; stroke: currentColor; fill: none; }

/* ── Newsletter Form ── */
.newsletter-form { display: flex; gap: 0; max-width: 480px; }
.newsletter-form input { flex: 1; padding: 0.75rem 1rem; background: var(--surface); border: 1px solid var(--border); border-right: none; color: var(--text); font-family: var(--font-mono); font-size: 13px; outline: none; transition: border-color 0.2s; }
.newsletter-form input::placeholder { color: var(--faint); }
.newsletter-form input:focus { border-color: var(--accent-dim); }
.newsletter-form button { padding: 0.75rem 1.4rem; background: transparent; border: 1px solid var(--accent-dim); color: var(--accent); font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; cursor: pointer; transition: background 0.2s; }
.newsletter-form button:hover { background: rgba(200,169,110,0.08); }

/* ── Mobile ── */
@media (max-width: 640px) {
  .nav-links { gap: var(--space-md); }
  .nav-links a { font-size: 11px; }
  .nav-logo { font-size: 10px; }
  .item-list .tags { display: none; }
  .footer-inner { flex-direction: column; gap: var(--space-sm); }
  .pgp-fingerprint { display: none; }
}