/* ============================================================
   Pieter Taks Holding B.V. — 2026
   Design system + layout
   ============================================================ */

:root {
  /* palette */
  --bg:        #06080d;
  --bg-2:      #0a0e17;
  --surface:   rgba(255, 255, 255, 0.025);
  --surface-2: rgba(255, 255, 255, 0.045);
  --border:    rgba(255, 255, 255, 0.08);
  --border-2:  rgba(255, 255, 255, 0.14);

  --text:      #e7ecf3;
  --text-dim:  #9aa6b8;
  --text-mute: #5f6b7e;

  --accent:    #06A3DA;
  --accent-2:  #3fd0ff;
  --accent-3:  #6a7bff;
  --accent-glow: rgba(6, 163, 218, 0.4);

  --grad: linear-gradient(120deg, #3fd0ff 0%, #06A3DA 45%, #6a7bff 100%);

  --maxw: 1180px;
  --radius: 16px;
  --radius-lg: 22px;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Ambient background ---------- */
.bg-grid, .bg-aurora, .bg-noise {
  position: fixed; inset: 0; pointer-events: none; z-index: -2;
}
.bg-grid {
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 80%);
}
.bg-aurora {
  z-index: -3;
  background:
    radial-gradient(50% 40% at 15% 0%, rgba(6,163,218,0.18), transparent 70%),
    radial-gradient(50% 45% at 90% 10%, rgba(106,123,255,0.16), transparent 70%),
    radial-gradient(40% 40% at 60% 100%, rgba(63,208,255,0.08), transparent 70%);
  animation: auroraDrift 22s ease-in-out infinite alternate;
}
@keyframes auroraDrift {
  0%   { transform: translate3d(0,0,0) scale(1); }
  100% { transform: translate3d(0,-3%,0) scale(1.08); }
}
.bg-noise {
  z-index: -1; opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0%;
  background: var(--grad); z-index: 200; transition: width 0.1s linear;
  box-shadow: 0 0 12px var(--accent-glow);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem;
  padding: 13px 24px; border-radius: 999px; cursor: pointer;
  border: 1px solid transparent; transition: all 0.3s var(--ease);
  white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: 0.85rem; }
.btn-block { width: 100%; }
.btn-primary {
  background: var(--grad); color: #04121a; position: relative;
  box-shadow: 0 6px 24px -8px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 34px -8px var(--accent-glow); filter: brightness(1.08); }
.btn-ghost {
  background: var(--surface); color: var(--text); border-color: var(--border-2);
}
.btn-ghost:hover { background: var(--surface-2); border-color: var(--accent); color: #fff; transform: translateY(-2px); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: all 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(6, 8, 13, 0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-logo-img { height: 40px; width: auto; filter: brightness(0) invert(1); transition: filter 0.4s var(--ease); }
.site-footer .brand-logo-img { height: 44px; }
html[data-theme="light"] .brand-logo-img { filter: none; }
.brand-mark { display: grid; place-items: center; filter: drop-shadow(0 2px 8px var(--accent-glow)); }
.brand-text { display: inline-flex; align-items: baseline; gap: 6px; line-height: 1; font-family: var(--font-display); }
.brand-text strong { font-size: 0.98rem; font-weight: 600; letter-spacing: -0.01em; }
.brand-text small { font-size: 0.7rem; color: var(--accent-2); letter-spacing: 0.12em; font-family: var(--font-mono); }

.nav { display: flex; gap: 4px; }
.nav-link {
  font-size: 0.9rem; color: var(--text-dim); padding: 8px 14px; border-radius: 999px;
  transition: all 0.25s var(--ease); position: relative;
}
.nav-link:hover { color: var(--text); background: var(--surface); }
.nav-link.active { color: var(--accent-2); }

.header-actions { display: flex; align-items: center; gap: 14px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s var(--ease); }
.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; padding: 168px 0 90px; overflow: hidden; }
.hero-inner { position: relative; z-index: 2; }
.hero-glow {
  position: absolute; top: -10%; left: 50%; transform: translateX(-50%);
  width: 900px; height: 600px; z-index: 1;
  background: radial-gradient(circle, var(--accent-glow), transparent 60%);
  filter: blur(40px); opacity: 0.5;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em;
  color: var(--text-dim); padding: 7px 15px; border: 1px solid var(--border);
  border-radius: 999px; background: var(--surface); margin-bottom: 26px;
}
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 0 var(--accent-glow); animation: pulse 2s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--accent-glow); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero-title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2.6rem, 6.5vw, 4.7rem); line-height: 1.04;
  letter-spacing: -0.03em; margin-bottom: 24px;
}
.grad-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero-lead { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-dim); max-width: 620px; margin-bottom: 36px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 64px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  padding-top: 38px; border-top: 1px solid var(--border);
}
.stat-num {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.02em; line-height: 1;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat dd { font-size: 0.82rem; color: var(--text-mute); margin-top: 8px; }

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 0; background: var(--bg-2);
  max-width: var(--maxw); margin: 0 auto; width: calc(100% - 48px);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex; gap: 28px; align-items: center; width: max-content;
  animation: marquee 32s linear infinite;
  font-family: var(--font-display); font-weight: 600;
  font-size: 1.5rem; color: var(--text-mute); letter-spacing: 0.02em;
}
.marquee-track .sep { color: var(--accent); }
@keyframes marquee { to { transform: translateX(-50%); } }

.brand-chip {
  display: inline-flex; align-items: center; justify-content: center;
  height: 50px; padding: 0 24px; flex: none;
  opacity: 0.5; transition: all 0.3s var(--ease);
}
.brand-chip img { height: 27px; width: auto; object-fit: contain; filter: brightness(0) invert(1); }
.brand-chip:hover { opacity: 1; transform: translateY(-2px); }

/* ---------- Sections ---------- */
.section { padding: 100px 0; position: relative; }
.section-head { max-width: 720px; margin-bottom: 56px; }
.kicker {
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-2);
  letter-spacing: 0.05em; display: block; margin-bottom: 16px;
}
.section-head h2 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.9rem, 4vw, 2.9rem); letter-spacing: -0.025em; line-height: 1.1;
}
.section-sub { color: var(--text-dim); margin-top: 16px; font-size: 1.05rem; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 40px; align-items: start; }
.about-copy p { color: var(--text-dim); margin-bottom: 18px; font-size: 1.02rem; }
.about-copy strong { color: var(--text); }

.value-row { display: grid; gap: 14px; margin-top: 32px; }
.value-card {
  display: grid; grid-template-columns: auto 1fr; column-gap: 16px; row-gap: 4px;
  padding: 18px 20px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); transition: all 0.3s var(--ease);
}
.value-card:hover { border-color: var(--border-2); background: var(--surface-2); transform: translateX(4px); }
.value-ico { grid-row: span 2; display: grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: var(--grad); color: #04121a; font-size: 1.2rem; }
.value-card h4 { font-family: var(--font-display); font-size: 1rem; font-weight: 600; }
.value-card p { color: var(--text-mute); font-size: 0.9rem; margin: 0; }

.founder-card {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface-2), transparent);
  padding: 30px; position: sticky; top: 100px;
}
.founder-photo {
  margin: -30px -30px 22px; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow: hidden; position: relative;
}
.founder-photo img {
  width: 100%; height: 230px; object-fit: cover; object-position: 28% 18%;
  filter: saturate(0.95) contrast(1.02);
}
.founder-photo::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to bottom, rgba(6,8,13,0.05) 40%, rgba(10,14,23,0.85) 100%);
}
.founder-top { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.founder-avatar {
  width: 58px; height: 58px; border-radius: 16px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: #04121a;
  background: var(--grad); box-shadow: 0 6px 20px -6px var(--accent-glow);
}
.founder-top h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; }
.founder-top .role { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-2); }
.founder-bio { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 22px; }
.founder-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.founder-tags span {
  font-size: 0.76rem; font-family: var(--font-mono); color: var(--text-dim);
  padding: 5px 11px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface);
  transition: all 0.25s var(--ease);
}
.founder-tags span:hover { border-color: var(--accent); color: var(--accent-2); }
.founder-links { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------- Portfolio ---------- */
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pf-card {
  display: flex; flex-direction: column; padding: 26px;
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: var(--surface); position: relative; overflow: hidden;
  transition: all 0.4s var(--ease);
}
.pf-card::before {
  content: ""; position: absolute; inset: 0; padding: 1px; border-radius: inherit;
  background: var(--grad); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity 0.4s var(--ease); pointer-events: none;
}
.pf-card > * { position: relative; z-index: 1; }
.pf-card:hover { transform: translateY(-6px); background: var(--surface-2); }
.pf-card:hover::before { opacity: 1; }

/* Exited ventures — quieter, but fully legible (text stays at full opacity) */
.pf-card:has(.pf-status.exited) { background: transparent; border-color: rgba(255,255,255,0.06); }
.pf-card:has(.pf-status.exited)::before { display: none; }
.pf-card:has(.pf-status.exited) .pf-banner { background: linear-gradient(160deg, rgba(255,255,255,0.02), transparent); }
.pf-card:has(.pf-status.exited) .pf-banner-logo img { opacity: 0.5; }
.pf-card:has(.pf-status.exited) .pf-name { color: var(--text-dim); }
.pf-card:has(.pf-status.exited):hover { background: var(--surface); transform: translateY(-4px); }
.pf-card:has(.pf-status.exited):hover .pf-banner-logo img { opacity: 0.8; }
.pf-card:has(.pf-status.exited):hover .pf-name { color: var(--text); }

/* Card header band */
.pf-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  height: 96px; padding: 0 24px; margin: -26px -26px 22px;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(160deg, rgba(255,255,255,0.055), rgba(255,255,255,0.01));
  border-bottom: 1px solid var(--border);
}
.pf-banner-center { justify-content: center; }
.pf-banner-meta { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.pf-banner-logo { display: inline-flex; align-items: center; gap: 13px; }
.pf-banner-logo img {
  height: 48px; width: auto; max-width: 180px; object-fit: contain;
  filter: brightness(0) invert(1); opacity: 0.9;
}
.pf-banner-dual { flex-direction: column; align-items: flex-end; gap: 10px; }
.pf-banner-dual .pf-logo-x { height: 18px; }
.pf-banner-dual .pf-logo-hyper { height: 15px; }

/* Collaboration cards use a taller centered band */
.collab-card .pf-banner { margin: -32px -32px 26px; }
.collab-card .pf-banner-logo img { height: 48px; max-width: 200px; }

.pf-links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; }
.pf-link-sub { color: var(--text-mute); font-weight: 500; }
.pf-link-sub:hover { color: var(--accent-2); }

.pf-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.pf-status { font-family: var(--font-mono); font-size: 0.72rem; padding: 4px 10px; border-radius: 999px; letter-spacing: 0.03em; }
.pf-status.active { color: #6ee7b7; background: rgba(110,231,183,0.1); border: 1px solid rgba(110,231,183,0.2); }
.pf-status.incubating { color: #fbbf24; background: rgba(251,191,36,0.1); border: 1px solid rgba(251,191,36,0.22); }
.pf-status.exited { color: var(--text-mute); background: var(--surface); border: 1px solid var(--border); }
.pf-year { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-mute); }

.pf-name { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; letter-spacing: -0.01em; }
.pf-focus { font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent-2); margin: 6px 0 14px; }
.pf-desc { color: var(--text-dim); font-size: 0.92rem; flex-grow: 1; }
.pf-meta { list-style: none; margin: 18px 0; display: grid; gap: 7px; }
.pf-meta li { font-size: 0.85rem; color: var(--text); display: flex; gap: 10px; align-items: baseline; }
.pf-meta li span { color: var(--text-mute); width: 92px; flex: none; font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.04em; }
.pf-link { font-family: var(--font-display); font-size: 0.88rem; color: var(--accent-2); font-weight: 600; display: inline-flex; gap: 6px; align-items: center; transition: gap 0.25s var(--ease); }
.pf-link:hover { gap: 11px; }
.pf-link span { transition: transform 0.25s var(--ease); }

.pf-cta { justify-content: center; background: linear-gradient(150deg, rgba(6,163,218,0.14), rgba(106,123,255,0.08)); border-color: var(--border-2); }
.pf-cta h3 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; margin-bottom: 10px; }
.pf-cta p { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 18px; }
.pf-cta-link { font-family: var(--font-display); font-weight: 600; color: var(--accent-2); display: inline-flex; gap: 7px; }
.pf-cta:hover { transform: translateY(-6px); }

/* ---------- Timeline ---------- */
.timeline { list-style: none; position: relative; max-width: 760px; margin: 0 auto; }
.timeline::before { content: ""; position: absolute; left: 90px; top: 8px; bottom: 8px; width: 1px; background: linear-gradient(var(--accent), transparent); }
.tl-item { display: grid; grid-template-columns: 90px 1fr; gap: 32px; padding-bottom: 38px; position: relative; }
.tl-item:last-child { padding-bottom: 0; }
.tl-year { font-family: var(--font-mono); font-weight: 500; color: var(--accent-2); font-size: 0.95rem; text-align: right; padding-top: 1px; }
.tl-body { position: relative; padding-left: 32px; }
.tl-body::before { content: ""; position: absolute; left: -7px; top: 6px; width: 13px; height: 13px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); box-shadow: 0 0 12px var(--accent-glow); }
.tl-body h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; margin-bottom: 5px; }
.tl-body p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------- Collaborations ---------- */
.collab-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.collab-card { padding: 32px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); transition: all 0.35s var(--ease); }
.collab-card:hover { border-color: var(--border-2); background: var(--surface-2); transform: translateY(-4px); }
.collab-card h3 { font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; margin-bottom: 14px; }
.collab-card p { color: var(--text-dim); font-size: 0.95rem; margin-bottom: 16px; }
.collab-card strong { color: var(--text); }

/* ---------- Connect ---------- */
.connect-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.connect-info h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.9rem, 4vw, 2.7rem); letter-spacing: -0.025em; line-height: 1.1; margin-bottom: 18px; }
.connect-info > p { color: var(--text-dim); margin-bottom: 26px; }
.connect-points { list-style: none; display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.connect-points li { display: inline-flex; align-items: center; gap: 9px; font-size: 0.9rem; color: var(--text); padding: 8px 15px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface); }
.cp-ico { color: var(--accent-2); }

.contact-list { list-style: none; display: grid; gap: 18px; }
.contact-list li { display: grid; gap: 3px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.ci-label { font-family: var(--font-mono); font-size: 0.74rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; }
.contact-list a { font-size: 1.05rem; color: var(--text); transition: color 0.25s var(--ease); width: fit-content; }
.contact-list a:hover { color: var(--accent-2); }

.connect-form {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface-2), transparent); padding: 32px;
}
.field { margin-bottom: 18px; }
.field label { font-family: var(--font-mono); font-size: 0.76rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; display: block; margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; background: rgba(0,0,0,0.25); border: 1px solid var(--border); border-radius: 12px;
  padding: 13px 16px; color: var(--text); font-family: var(--font-body); font-size: 0.98rem;
  transition: all 0.25s var(--ease); resize: vertical;
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-mute); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); background: rgba(0,0,0,0.4); box-shadow: 0 0 0 3px rgba(6,163,218,0.12); }
.form-note { font-size: 0.84rem; color: var(--text-mute); margin-top: 14px; text-align: center; }
.form-note.success { color: #6ee7b7; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-2); padding-top: 64px; margin-top: 40px; }
.footer-inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand p { color: var(--text-mute); font-size: 0.9rem; margin-top: 16px; max-width: 320px; }
.footer-nav, .footer-contact { display: flex; flex-direction: column; gap: 11px; }
.footer-nav h5, .footer-contact h5 { font-family: var(--font-mono); font-size: 0.76rem; color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 5px; }
.footer-nav a, .footer-contact a { color: var(--text-dim); font-size: 0.92rem; transition: color 0.25s var(--ease); width: fit-content; }
.footer-nav a:hover, .footer-contact a:hover { color: var(--accent-2); }
.footer-social { color: var(--accent-2) !important; font-family: var(--font-display); font-weight: 600; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 22px 24px; border-top: 1px solid var(--border); font-size: 0.82rem; color: var(--text-mute); }
.footer-bottom p:last-child { font-family: var(--font-mono); }

/* ---------- Back to top ---------- */
.to-top {
  position: fixed; right: 24px; bottom: 24px; width: 46px; height: 46px; border-radius: 14px;
  display: grid; place-items: center; background: var(--surface-2); border: 1px solid var(--border-2);
  backdrop-filter: blur(10px); color: var(--text); font-size: 1.2rem; z-index: 90;
  opacity: 0; transform: translateY(12px); pointer-events: none; transition: all 0.35s var(--ease);
}
.to-top.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
.to-top:hover { background: var(--grad); color: #04121a; border-color: transparent; }

/* ---------- Reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .about-grid { grid-template-columns: 1fr; }
  .founder-card { position: static; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .connect-wrap { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; gap: 0;
    background: rgba(6,8,13,0.96); backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border); padding: 16px 24px 24px;
    transform: translateY(-130%); transition: transform 0.4s var(--ease); z-index: 99;
  }
  .nav.open { transform: translateY(0); }
  .nav-link { padding: 14px 8px; border-radius: 0; border-bottom: 1px solid var(--border); }
  .nav-toggle { display: flex; }
  .header-actions .btn-sm { display: none; }
  .hero { padding: 130px 0 70px; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 26px 20px; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .collab-grid { grid-template-columns: 1fr; }
  .timeline::before { left: 60px; }
  .tl-item { grid-template-columns: 60px 1fr; gap: 18px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   Theme toggle + light theme
   ============================================================ */
.theme-toggle {
  display: inline-grid; place-items: center; width: 40px; height: 40px;
  border-radius: 12px; background: var(--surface); border: 1px solid var(--border-2);
  color: var(--text-dim); cursor: pointer; transition: all 0.25s var(--ease);
}
.theme-toggle:hover { color: var(--text); border-color: var(--accent); background: var(--surface-2); }
.theme-toggle .icon-sun { display: block; }
.theme-toggle .icon-moon { display: none; }
html[data-theme="light"] .theme-toggle .icon-sun { display: none; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* Smooth cross-fade when switching */
body, .site-header, .pf-card, .pf-banner, .field input, .field textarea,
.brand-chip, .founder-card, .connect-form { transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease), color 0.4s var(--ease); }

html[data-theme="light"] {
  --bg:        #f6f8fc;
  --bg-2:      #eceff5;
  --surface:   rgba(12, 22, 44, 0.03);
  --surface-2: rgba(12, 22, 44, 0.06);
  --border:    rgba(12, 22, 44, 0.10);
  --border-2:  rgba(12, 22, 44, 0.17);

  --text:      #0c1422;
  --text-dim:  #46536a;
  --text-mute: #7e8aa0;

  --accent:    #0488c4;
  --accent-2:  #0779ad;
  --accent-3:  #5566f0;
  --accent-glow: rgba(4, 136, 196, 0.26);

  --grad: linear-gradient(120deg, #0a9ad6 0%, #0488c4 45%, #5566f0 100%);
}

/* Ambient backdrop in light */
html[data-theme="light"] .bg-grid {
  background-image:
    linear-gradient(rgba(12,22,44,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12,22,44,0.05) 1px, transparent 1px);
}
html[data-theme="light"] .bg-aurora {
  background:
    radial-gradient(50% 40% at 15% 0%, rgba(4,136,196,0.10), transparent 70%),
    radial-gradient(50% 45% at 90% 10%, rgba(85,102,240,0.09), transparent 70%),
    radial-gradient(40% 40% at 60% 100%, rgba(4,136,196,0.05), transparent 70%);
}
html[data-theme="light"] .bg-noise { opacity: 0.015; }

/* Surfaces with hardcoded dark values */
html[data-theme="light"] .site-header.scrolled { background: rgba(246,248,252,0.82); }
html[data-theme="light"] .founder-photo::after {
  background: linear-gradient(to bottom, rgba(246,248,252,0.02) 40%, rgba(236,239,245,0.88) 100%);
}
html[data-theme="light"] .field input,
html[data-theme="light"] .field textarea { background: #fff; }
html[data-theme="light"] .field input:focus,
html[data-theme="light"] .field textarea:focus { background: #fff; box-shadow: 0 0 0 3px rgba(4,136,196,0.14); }

html[data-theme="light"] .pf-status.active { color: #047a52; background: rgba(4,122,82,0.09); border-color: rgba(4,122,82,0.22); }
html[data-theme="light"] .pf-status.incubating { color: #b45309; background: rgba(180,83,9,0.09); border-color: rgba(180,83,9,0.22); }

/* Card header band tint */
html[data-theme="light"] .pf-banner { background: linear-gradient(160deg, rgba(12,22,44,0.05), rgba(12,22,44,0.01)); }

/* Logos render in their REAL brand colours on light backgrounds */
html[data-theme="light"] .pf-banner-logo img,
html[data-theme="light"] .brand-chip img { filter: none; opacity: 1; }
html[data-theme="light"] .brand-chip { opacity: 0.9; }
html[data-theme="light"] .brand-chip:hover { opacity: 1; }

/* Exited cards in light */
html[data-theme="light"] .pf-card:has(.pf-status.exited) { border-color: rgba(12,22,44,0.08); }
html[data-theme="light"] .pf-card:has(.pf-status.exited) .pf-banner { background: linear-gradient(160deg, rgba(12,22,44,0.025), transparent); }
html[data-theme="light"] .pf-card:has(.pf-status.exited) .pf-banner-logo img { opacity: 0.5; filter: grayscale(0.5); }
html[data-theme="light"] .pf-card:has(.pf-status.exited):hover .pf-banner-logo img { opacity: 0.85; filter: grayscale(0); }

@media (max-width: 760px) {
  html[data-theme="light"] .nav { background: rgba(246,248,252,0.97); }
}