/* ============================================================
   NERDIFITRONIX V2 · sections.css
   ============================================================ */

/* ── Hero ────────────────────────────────────────────────── */
#hero {
  position: relative; height: 100vh; min-height: 700px;
  display: flex; align-items: center; overflow: hidden;
}
#hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(2,3,4,0.9) 0%, rgba(8,12,16,0.75) 55%, rgba(0,255,136,0.04) 100%);
}
.hero-content {
  position: relative; z-index: 10;
  padding: 0 var(--gutter);
  max-width: var(--content-max); margin: 0 auto; width: 100%;
}
.hero-eyebrow {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--green);
  display: flex; align-items: center; gap: 12px; margin-bottom: 28px;
  opacity: 0; animation: hFU .8s var(--ease-out) .3s forwards;
}
.hero-eyebrow::before { content:''; width: 24px; height: 1px; background: var(--green); }
.hero-hl {
  font-family: var(--font-display); font-weight: 900;
  font-size: clamp(52px, 9.5vw, 148px); line-height: .92;
  letter-spacing: 0.02em; text-transform: uppercase;
}
.hero-hl .l1 { display: block; color: var(--white); opacity: 0; animation: hFU .8s var(--ease-out) .5s forwards; }
.hero-hl .l2 { display: block; color: var(--green); opacity: 0; animation: hFU .8s var(--ease-out) .7s forwards; text-shadow: 0 0 40px rgba(0,255,136,0.4); }
.hero-sub {
  font-size: clamp(14px, 1.7vw, 18px); line-height: 1.75;
  color: var(--grey-light); max-width: 520px; margin-top: 28px;
  opacity: 0; animation: hFU .8s var(--ease-out) .9s forwards;
}
.hero-actions {
  display: flex; gap: 16px; margin-top: 40px; flex-wrap: wrap;
  opacity: 0; animation: hFU .8s var(--ease-out) 1.1s forwards;
}
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 10; display: flex; flex-direction: column; align-items: center; gap: 10px;
  opacity: 0; animation: hFU .8s var(--ease-out) 1.5s forwards;
}
.hero-scroll span { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--grey); }
.scroll-line { width: 1px; height: 48px; background: linear-gradient(to bottom, var(--green), transparent); animation: scrollP 2s ease-in-out infinite; }

/* Terminal blink on headline */
.cursor-blink { display: inline-block; color: var(--green); animation: blink .8s steps(1) infinite; margin-left: 2px; }
@keyframes hFU { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
@keyframes scrollP { 0%,100%{opacity:.3} 50%{opacity:1} }

/* ── Stats ───────────────────────────────────────────────── */
#stats {
  background: var(--dark-mid);
  border-bottom: 1px solid var(--border);
}
.stats-row {
  max-width: var(--content-max); margin: 0 auto;
  display: grid; grid-template-columns: repeat(4,1fr);
  gap: 1px; background: var(--border);
}
.stat-item { background: var(--dark-mid); padding: 40px 28px; text-align: center; }
.stat-value {
  font-family: var(--font-display); font-size: clamp(28px,4vw,52px);
  font-weight: 900; letter-spacing: 0.04em; color: var(--green);
  line-height: 1; text-shadow: 0 0 24px rgba(0,255,136,0.3);
}
.stat-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--grey-mid); margin-top: 10px; }
@media (max-width:700px) { .stats-row { grid-template-columns: repeat(2,1fr); } }

/* ── About ───────────────────────────────────────────────── */
#about {
  padding: var(--section-pad) var(--gutter);
  background: var(--dark); position: relative; overflow: hidden;
}
.about-bg-text {
  position: absolute; right: -2%; top: 50%; transform: translateY(-50%);
  font-family: var(--font-display); font-size: clamp(120px,20vw,300px);
  font-weight: 900; letter-spacing: 0.04em; text-transform: uppercase;
  color: rgba(0,255,136,0.02); user-select: none; pointer-events: none;
  white-space: nowrap;
}
.about-inner {
  max-width: var(--content-max); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start;
  position: relative; z-index: 1;
}
.about-left h2 {
  font-family: var(--font-display); font-size: clamp(36px,5.5vw,80px);
  font-weight: 900; text-transform: uppercase; letter-spacing: 0.04em;
  line-height: .92; margin-bottom: 28px;
}
.about-left h2 em { font-style: normal; color: var(--green); }
.about-body { font-size: clamp(14px,1.7vw,17px); line-height: 1.8; color: var(--grey-light); margin-bottom: 28px; }
.about-pillars { display: flex; flex-direction: column; gap: 16px; }
@media (max-width:900px) { .about-inner{grid-template-columns:1fr;gap:48px} .about-bg-text{display:none} }

/* ── Projects ────────────────────────────────────────────── */
#projects {
  padding: var(--section-pad) var(--gutter);
  background: var(--dark-mid);
}
.projects-header {
  max-width: var(--content-max); margin: 0 auto 64px;
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
}
.projects-header h2 {
  font-family: var(--font-display); font-size: clamp(40px,6vw,88px);
  font-weight: 900; text-transform: uppercase; letter-spacing: 0.04em; line-height: .92;
}
.projects-filter {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
}
.filter-btn {
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em;
  text-transform: uppercase; padding: 7px 14px; border-radius: 2px;
  background: var(--dark-card); color: var(--grey-mid);
  border: 1px solid var(--border); cursor: none;
  transition: background var(--dur), color var(--dur), border-color var(--dur);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--green-glow); color: var(--green);
  border-color: var(--border-green);
}
.projects-grid {
  max-width: var(--content-max); margin: 0 auto;
  display: grid; grid-template-columns: repeat(3,1fr); gap: 16px;
}
.projects-grid .project-card.featured { grid-column: span 2; }
.placeholder-note {
  max-width: var(--content-max); margin: 32px auto 0;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--grey);
  padding: 16px 20px; border: 1px dashed var(--border); border-radius: 2px;
  display: flex; align-items: center; gap: 12px;
}
.placeholder-note::before { content: '//'; color: var(--green); opacity: .5; }
@media (max-width:1100px) { .projects-grid{grid-template-columns:repeat(2,1fr)} .projects-grid .project-card.featured{grid-column:span 1} }
@media (max-width:640px)  { .projects-grid{grid-template-columns:1fr} }

/* ── Capabilities ────────────────────────────────────────── */
#capabilities {
  padding: var(--section-pad) var(--gutter);
  background: var(--dark); position: relative;
}
.cap-header { max-width: var(--content-max); margin: 0 auto 64px; }
.cap-header h2 {
  font-family: var(--font-display); font-size: clamp(40px,6vw,88px);
  font-weight: 900; text-transform: uppercase; letter-spacing: 0.04em; line-height: .92;
}
.cap-grid {
  max-width: var(--content-max); margin: 0 auto;
  display: grid; grid-template-columns: repeat(2,1fr); gap: 14px;
}
@media (max-width:768px) { .cap-grid{grid-template-columns:1fr} }

/* ── QED Context ─────────────────────────────────────────── */
#qed-context {
  padding: var(--section-pad) var(--gutter);
  background: var(--dark-mid); position: relative; overflow: hidden;
}
.qed-context-inner {
  max-width: var(--content-max); margin: 0 auto;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 80px; align-items: center;
}
.qed-left h2 {
  font-family: var(--font-display); font-size: clamp(32px,5vw,72px);
  font-weight: 900; text-transform: uppercase; letter-spacing: 0.04em;
  line-height: .92; margin-bottom: 24px;
}
.qed-left h2 em { font-style: normal; color: var(--cyan); }
.qed-body { font-size: clamp(14px,1.7vw,17px); line-height: 1.8; color: var(--grey-light); margin-bottom: 32px; }
.qed-entities { display: flex; flex-direction: column; gap: 12px; }
.qed-entity {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 18px; background: var(--dark-card);
  border: 1px solid var(--border); border-radius: 2px;
  transition: border-color var(--dur), background var(--dur);
}
.qed-entity:hover { border-color: var(--border-cyan); background: rgba(0,207,255,0.03); }
.qed-entity-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); flex-shrink: 0; box-shadow: 0 0 8px rgba(0,207,255,0.5); }
.qed-entity-name { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--cream); flex-grow: 1; }
.qed-entity-role { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--grey-mid); }
@media (max-width:900px) { .qed-context-inner{grid-template-columns:1fr;gap:48px} }

/* ── Contact ─────────────────────────────────────────────── */
#contact {
  padding: var(--section-pad) var(--gutter);
  background: var(--dark); position: relative; overflow: hidden;
}
.contact-bg { position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 100%, rgba(0,255,136,0.06) 0%, transparent 70%); pointer-events: none; }
.contact-inner { max-width: 640px; margin: 0 auto; text-align: center; position: relative; z-index: 1; }
.contact-inner h2 {
  font-family: var(--font-display); font-size: clamp(40px,6vw,80px);
  font-weight: 900; text-transform: uppercase; letter-spacing: 0.04em;
  line-height: .92; margin-bottom: 20px;
}
.contact-inner p { font-size: clamp(14px,1.7vw,17px); line-height: 1.75; color: var(--grey-light); margin-bottom: 48px; }
.contact-form { display: flex; flex-direction: column; gap: 18px; text-align: left; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width:520px) { .form-row{grid-template-columns:1fr} }

/* ── Footer ──────────────────────────────────────────────── */
#footer {
  background: var(--black);
  border-top: 1px solid var(--border);
  padding: 60px var(--gutter) 36px;
}
.footer-inner { max-width: var(--content-max); margin: 0 auto; }
.footer-top {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 60px; flex-wrap: wrap;
  margin-bottom: 40px; padding-bottom: 40px; border-bottom: 1px solid var(--border);
}
.footer-brand .footer-wordmark {
  font-family: var(--font-display); font-size: 20px; font-weight: 900;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--green);
  text-shadow: 0 0 16px rgba(0,255,136,0.3); margin-bottom: 10px;
}
.footer-brand .footer-tagline { font-family: var(--font-mono); font-size: 11px; color: var(--grey-mid); letter-spacing: 0.1em; max-width: 240px; line-height: 1.6; }
.footer-links { display: flex; gap: 56px; flex-wrap: wrap; }
.footer-col h4 { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--green); margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--grey-mid); transition: color var(--dur); }
.footer-col a:hover { color: var(--green); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer-legal { font-family: var(--font-mono); font-size: 10px; color: var(--grey); letter-spacing: 0.05em; line-height: 1.8; }
.footer-div { font-family: var(--font-mono); font-size: 10px; color: rgba(0,255,136,0.3); letter-spacing: 0.08em; }
@media (max-width:700px) { .footer-top{flex-direction:column} }