/* ============================================
   STRATEGIQ / QUANTUM ERA — corporate consultancy site
   Base styles shared across all pages (McKinsey-inspired light theme)
   ============================================ */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f2f2ef;
  --color-surface: #ffffff;
  --color-surface-alt: #f2f2ef;
  --color-border: rgba(5, 28, 44, 0.12);
  --color-text: #051c2c;
  --color-text-muted: #5b6670;
  --color-accent: #0b5394;
  --color-accent-2: #072a44;
  --color-accent-3: #0b5394;
  --gradient-quantum: linear-gradient(135deg, #0b5394 0%, #0a3d6b 60%, #072a44 100%);
  --header-height: 76px;
  --max-width: 1240px;
  --radius: 4px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-serif: "PT Serif", Georgia, "Times New Roman", serif;
  --font-sans: "Inter", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
}

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

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3 { font-family: var(--font-serif); font-weight: 700; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-3);
  margin-bottom: 14px;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  letter-spacing: -0.01em;
  color: var(--color-accent-2);
}

.section-heading p {
  margin-top: 16px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

section { position: relative; padding: 96px 0; }
.section-alt { background: var(--color-bg-alt); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 2px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--color-accent-2);
  color: #ffffff;
}

.btn-primary:hover { background: var(--color-accent); }

.btn-outline {
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* ============ HEADER ============ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 18px 0;
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  transform: translateY(-100%);
  pointer-events: none;
  transition: transform var(--transition), box-shadow var(--transition), padding var(--transition);
}

/* Header sits just off-screen above the hero and slides down into view once the user scrolls */
.site-header.is-scrolled {
  transform: translateY(0);
  pointer-events: auto;
  padding: 12px 0;
  box-shadow: 0 4px 20px rgba(5, 28, 44, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 40px;
}

/* Shared brand/menu group for the parent site and its ventures */
.brand-group { display: flex; align-items: center; gap: 18px; }

.site-menu { position: relative; }

.menu-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0 10px;
  color: var(--color-text);
  font-family: var(--font-serif);
}

.menu-toggle span { display: block; height: 2px; width: 18px; background: currentColor; transition: transform var(--transition), opacity var(--transition); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.brand .brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 4px;
  background: var(--gradient-quantum);
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  color: #ffffff;
  font-weight: 900;
  font-family: var(--font-sans);
}

.brand span.suffix { color: var(--color-accent); }

.main-nav {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 300px;
  padding: 18px 0 12px;
  flex-direction: column;
  align-items: stretch;
  gap: 18px;
  background: var(--color-accent-2);
  border: 1px solid var(--color-accent-2);
  box-shadow: 0 16px 34px rgba(5, 28, 44, 0.22);
  overflow: visible;
  z-index: 1001;
}

.main-nav.nav-open { display: flex;
}

.menu-primary-links,
.menu-utility-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.menu-primary-links { padding: 0 10px; }

.menu-item { position: relative; display: block; }

.menu-item-label {
  display: block;
  width: calc(100% - 42px);
  padding: 10px 14px;
  border: 0;
  border-radius: 2px;
  background: transparent;
  color: #ffffff;
  font-family: var(--font-serif);
  font-size: 0.92rem;
  font-weight: 400;
  text-align: left;
  cursor: pointer;
}

.menu-item-label:hover { color: #b9ddf5; }

.menu-expand {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 2px;
  background: transparent;
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 1.8rem;
  font-weight: 300;
  line-height: 1;
  cursor: pointer;
  position: absolute;
  top: 3px;
  right: 4px;
  transition: background var(--transition), transform var(--transition);
}

.menu-expand:hover { color: #b9ddf5; }
.menu-expand[aria-expanded="true"] { transform: none; color: #b9ddf5; }

.menu-sub-links {
  display: none;
  position: absolute;
  top: -19px;
  left: calc(100% + 9px);
  width: 260px;
  padding: 10px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  box-shadow: 0 16px 34px rgba(5, 28, 44, 0.18);
  z-index: 2000;
  height: var(--menu-height, auto);
  min-height: 100%;
  pointer-events: auto;
}

.menu-item.is-expanded .menu-sub-links { display: flex; flex-direction: column; }
.menu-sub-links a { font-family: var(--font-sans); font-size: 0.82rem; color: var(--color-text); padding: 7px 4px; background: transparent; }
.menu-sub-links a:hover { color: var(--color-accent-2); background: transparent; text-decoration: underline; text-underline-offset: 3px; }

.menu-utility-links {
  margin-top: 0;
  border-top: 1px solid var(--color-border);
  padding: 14px 10px 6px;
  gap: 2px;
  background: #ffffff;
}

.main-nav a {
  padding: 10px 14px;
  font-family: var(--font-serif);
  font-size: 0.92rem;
  font-weight: 400;
  border-radius: 2px;
  color: #ffffff;
  transition: color var(--transition), background var(--transition);
}

.main-nav a:hover, .main-nav a.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
}

.main-nav a { text-align: left; }

.menu-utility-links a {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--color-text);
}

.menu-utility-links a:hover,
.menu-utility-links a.active {
  color: var(--color-accent-2);
  background: transparent;
}

.menu-utility-links a span {
  display: inline-block;
  width: 24px;
  color: var(--color-text);
}

.header-cta { display: flex; align-items: center; gap: 14px; margin-left: auto; }

/* ============ HERO ============ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-accent-2);
  overflow: hidden;
}

.hero-visual {
  position: absolute;
  inset: 0;
}

.hero-visual video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 28, 44, 0.55) 0%, rgba(5, 28, 44, 0.65) 55%, rgba(5, 28, 44, 0.85) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: var(--header-height);
  max-width: 820px;
}

.hero-content h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin-bottom: 24px;
  color: #ffffff;
}

.hero-content .gradient-text { color: #7fc4ff; }

.hero-content p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
  margin-bottom: 36px;
}

.hero-content .eyebrow { color: #7fc4ff; }

.hero .btn-outline { border-color: rgba(255, 255, 255, 0.4); color: #ffffff; }
.hero .btn-outline:hover { border-color: #ffffff; color: #ffffff; }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 2;
}

.hero-scroll-cue .line { width: 1px; height: 34px; background: linear-gradient(180deg, rgba(255,255,255,0.8), transparent); animation: pulse-line 2s infinite; }

@keyframes pulse-line { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ============ APPROACH / HYBRID CARDS ============ */

.approach-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.approach-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  isolation: isolate;
}

.approach-card .card-media {
  position: absolute;
  inset: 0;
  background: var(--gradient-quantum);
  opacity: 0.07;
  z-index: -1;
  transition: opacity var(--transition), transform var(--transition);
}

.approach-card:hover .card-media { opacity: 0.14; transform: scale(1.04); }

.approach-card h3 { font-size: 1.5rem; margin-bottom: 12px; color: var(--color-accent-2); }
.approach-card p { color: var(--color-text-muted); margin-bottom: 18px; }
.approach-card .card-link { font-weight: 600; color: var(--color-accent); display: inline-flex; align-items: center; gap: 6px; }

/* ============ OFFERINGS ============ */

.offerings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.offering-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 30px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.offering-card:hover { transform: translateY(-6px); border-color: var(--color-accent); box-shadow: 0 12px 30px rgba(5, 28, 44, 0.08); }

.offering-icon {
  width: 46px;
  height: 46px;
  border-radius: 4px;
  background: var(--gradient-quantum);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  font-size: 1.3rem;
}

.offering-card h3 { font-size: 1.2rem; margin-bottom: 10px; color: var(--color-accent-2); }
.offering-card p { color: var(--color-text-muted); font-size: 0.96rem; margin-bottom: 16px; }
.offering-card a { color: var(--color-accent); font-weight: 600; font-size: 0.9rem; }

/* ============ IMPACT / CASE STUDIES ============ */

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.impact-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.impact-card:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(5, 28, 44, 0.08); }

.impact-card .thumb {
  height: 190px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.impact-card .thumb::after {
  content: attr(data-tag);
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--color-accent-2);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
}

.impact-card .body { padding: 22px; }
.impact-card .date { font-size: 0.82rem; color: var(--color-text-muted); margin-bottom: 8px; }
.impact-card h3 { font-size: 1.08rem; line-height: 1.35; color: var(--color-accent-2); }

/* ============ LEADERSHIP ============ */

.leadership-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.leader-card { text-align: left; }

.leader-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  background: var(--color-surface-alt);
  background-size: cover;
  background-position: center;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
}

.leader-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-quantum);
  opacity: 0.06;
}

.leader-card h3 { font-size: 1.05rem; color: var(--color-accent-2); }
.leader-card .role { color: var(--color-accent); font-size: 0.85rem; margin: 6px 0 10px; font-weight: 600; }
.leader-card p.bio { color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: 12px; }
.leader-card .socials { display: flex; gap: 10px; }
.leader-card .socials a {
  width: 32px; height: 32px; border-radius: 4px;
  border: 1px solid var(--color-border);
  display: grid; place-items: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition), border-color var(--transition);
}
.leader-card .socials a:hover { color: var(--color-accent); border-color: var(--color-accent); }

/* ============ INSIGHTS / NEWS ============ */

.insights-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 24px;
}

.insight-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.insight-card .thumb { height: 170px; background-size: cover; background-position: center; }
.insight-card .body { padding: 20px; }
.insight-card .kicker { font-size: 0.78rem; color: var(--color-accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.insight-card h3 { font-size: 1.05rem; margin: 10px 0 8px; line-height: 1.35; color: var(--color-accent-2); }
.insight-card .date { color: var(--color-text-muted); font-size: 0.82rem; }

/* ============ CONTACT / CONNECT ============ */

.connect-section {
  background: var(--color-accent-2);
  color: #ffffff;
  border-radius: var(--radius);
  padding: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.connect-section h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); max-width: 520px; }
.connect-section .btn-primary { background: #ffffff; color: var(--color-accent-2); }

.social-row { display: flex; gap: 12px; }
.social-row a {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  display: grid; place-items: center;
  font-weight: 700;
}

/* ============ FOOTER ============ */

.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

.footer-grid h4 { font-size: 0.9rem; margin-bottom: 18px; color: var(--color-accent-2); }
.footer-grid ul li { margin-bottom: 10px; }
.footer-grid ul li a { color: var(--color-text-muted); font-size: 0.92rem; transition: color var(--transition); }
.footer-grid ul li a:hover { color: var(--color-accent); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* ============ LABS PAGE SPECIFIC ============ */

.labs-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.focus-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.focus-number {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-accent);
  min-width: 46px;
}

.focus-card h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--color-accent-2); }
.focus-card p { color: var(--color-text-muted); font-size: 0.94rem; }

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.tool-card {
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.tool-card .tool-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.tool-card h3 { font-size: 1.15rem; margin-bottom: 10px; color: var(--color-accent-2); }
.tool-card p { color: var(--color-text-muted); font-size: 0.92rem; }

.partners-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  padding: 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.partner-slot {
  flex: 1;
  min-width: 140px;
  text-align: center;
  padding: 18px;
  border-radius: 4px;
  border: 1px dashed var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ============ AUTH PAGE ============ */

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 140px 32px 80px;
  background: var(--color-bg-alt);
}

.auth-panel {
  width: min(100%, 480px);
  padding: 48px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: 0 16px 34px rgba(5, 28, 44, 0.08);
}

.auth-panel h1 { margin-bottom: 12px; color: var(--color-accent-2); }
.auth-panel > p { color: var(--color-text-muted); margin-bottom: 30px; }
.auth-form { display: grid; gap: 10px; }
.auth-form label { color: var(--color-text); font-size: 0.9rem; font-weight: 600; }
.auth-form input { width: 100%; padding: 13px 14px; border: 1px solid var(--color-border); border-radius: 2px; font: inherit; color: var(--color-text); margin-bottom: 12px; }
.auth-form input:focus { outline: 2px solid rgba(11, 83, 148, 0.25); border-color: var(--color-accent); }
.auth-form .btn { justify-content: center; margin-top: 10px; }

/* ============ RESPONSIVE ============ */

@media (max-width: 1024px) {
  .impact-grid, .leadership-grid, .insights-grid, .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .approach-grid, .focus-grid { grid-template-columns: 1fr; }
  .connect-section { padding: 48px; }
}

@media (max-width: 768px) {
  .main-nav.nav-open { display: flex; }
  .impact-grid, .leadership-grid, .insights-grid, .tools-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  section { padding: 64px 0; }
  .auth-panel { padding: 32px 24px; }
}