/* ================================================================
   MonkAI – style.css
   Base styles, layout, typography, components.
   Theming is driven by CSS variables in :root for easy customization.
   ================================================================ */

:root {
  /* Palette */
  --bg-1: #050816;
  --bg-2: #0B1020;
  --bg-soft: #111827;

  --accent-blue: #3B82F6;
  --accent-cyan: #06B6D4;
  --accent-purple: #8B5CF6;
  --accent-gold: #D4AF37;

  --text: #FFFFFF;
  --text-muted: #D1D5DB;
  --text-faint: rgba(209, 213, 219, 0.65);

  /* Glass */
  --glass-bg: rgba(17, 24, 39, 0.55);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-strong: rgba(255, 255, 255, 0.14);
  --glass-blur: 18px;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue), var(--accent-purple));
  --grad-text:    linear-gradient(135deg, #06B6D4 0%, #3B82F6 50%, #8B5CF6 100%);
  --grad-gold:    linear-gradient(135deg, #D4AF37, #8B5CF6);

  /* Shadows / glow */
  --glow-blue: 0 0 32px rgba(59, 130, 246, 0.35);
  --glow-purple: 0 0 32px rgba(139, 92, 246, 0.3);

  /* Type */
  --font-heading: 'Space Grotesk', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  /* Layout */
  --container-width: 1200px;
  --section-pad-y: clamp(4rem, 8vw, 7rem);
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;
  --transition: 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: radial-gradient(1200px 800px at 80% -10%, rgba(59,130,246,0.18), transparent 60%),
              radial-gradient(900px 700px at -10% 30%, rgba(139,92,246,0.18), transparent 55%),
              linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; margin: 0; }

::selection { background: rgba(59,130,246,0.45); color: #fff; }

/* Focus ring (a11y) */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  margin: 0 0 0.6em;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5.6vw, 4.2rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
h3 { font-size: 1.25rem; }
p  { margin: 0 0 1em; color: var(--text-muted); }

.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

.muted { color: var(--text-faint); }

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
  position: relative;
  z-index: 1;
}

.section {
  padding-block: var(--section-pad-y);
  position: relative;
}

.section-head {
  max-width: 760px;
  margin: 0 auto 3rem;
  text-align: center;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.35);
  color: #cfe0ff;
  margin-bottom: 1.1rem;
}
.section-tag.light {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.18);
  color: var(--text);
}

.section-title { margin-bottom: 0.8rem; }
.section-lead {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 60ch;
  margin: 0 auto;
}

.grid {
  display: grid;
  gap: 1.4rem;
}
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* ---------- Buttons ---------- */
.btn {
  --btn-pad-y: 0.95rem;
  --btn-pad-x: 1.6rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  border-radius: 999px;
  border: 1px solid transparent;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition);
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 10px 30px -10px rgba(59,130,246,0.55), var(--glow-blue);
}
.btn-primary::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.25), transparent 40%);
  opacity: 0;
  transition: opacity var(--transition);
  z-index: -1;
}
.btn-primary:hover::after { opacity: 1; }

.btn-secondary {
  background: rgba(255,255,255,0.04);
  color: var(--text);
  border-color: rgba(255,255,255,0.18);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  border-color: rgba(255,255,255,0.4);
  box-shadow: 0 0 0 4px rgba(139,92,246,0.12);
}

/* ---------- Navigation ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  background: rgba(5, 8, 22, 0.55);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(5, 8, 22, 0.85);
  border-bottom-color: var(--glass-border);
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
}

.nav-container {
  max-width: var(--container-width);
  margin-inline: auto;
  padding: 0.85rem clamp(1rem, 4vw, 2rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.logo-mark {
  height: 40px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(59,130,246,0.35));
}
.footer-brand .logo-mark { height: 36px; }
.logo-accent { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-menu {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.55rem 0.9rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  border-radius: 999px;
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--text); }
.nav-link.active {
  color: var(--text);
  background: rgba(59,130,246,0.12);
  box-shadow: inset 0 0 0 1px rgba(59,130,246,0.35);
}

/* ---------- Theme toggle ---------- */
.theme-toggle {
  position: relative;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
  transition:
    color var(--transition),
    border-color var(--transition),
    background var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
  overflow: hidden;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--glass-border-strong);
  transform: translateY(-1px);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.10);
}
.theme-toggle svg {
  position: absolute;
  transition: opacity 240ms var(--transition), transform 320ms var(--transition);
}

/* In dark mode (default) → show moon, hide sun */
:root[data-theme="dark"] .theme-toggle .icon-sun,
:root:not([data-theme]) .theme-toggle .icon-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}
:root[data-theme="dark"] .theme-toggle .icon-moon,
:root:not([data-theme]) .theme-toggle .icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}
/* In light mode → show sun, hide moon */
:root[data-theme="light"] .theme-toggle .icon-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}
:root[data-theme="light"] .theme-toggle .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.04);
  border-radius: 12px;
  padding: 10px;
  flex-direction: column;
  justify-content: space-between;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 200;
  background: transparent;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--grad-primary);
  box-shadow: 0 0 10px rgba(59,130,246,0.6);
  transition: width 80ms linear;
}

/* ---------- Particle canvas ---------- */
.particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-block: clamp(3rem, 6vw, 5rem);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}
.gradient-mesh {
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(closest-side, rgba(6,182,212,0.18), transparent) 10% 20%/40% 40% no-repeat,
    radial-gradient(closest-side, rgba(139,92,246,0.22), transparent) 80% 30%/50% 50% no-repeat,
    radial-gradient(closest-side, rgba(59,130,246,0.2), transparent) 50% 90%/55% 55% no-repeat;
  filter: blur(40px);
  opacity: 0.85;
}
.blob {
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  mix-blend-mode: screen;
}
.blob-1 { background: var(--accent-blue);   top: 10%;  left: -8%;  }
.blob-2 { background: var(--accent-purple); top: 50%;  right: -8%; }
.blob-3 { background: var(--accent-cyan);   bottom: -10%; left: 30%; }

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
  min-height: 70vh;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: #cfe0ff;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--glass-border);
  margin-bottom: 1.4rem;
}

.hero-title { margin: 0 0 0.8rem; }

.hero-subtitle {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.2vw, 1.6rem);
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.typed {
  background: var(--grad-text);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  font-weight: 600;
}
.caret {
  width: 2px;
  height: 1.1em;
  background: var(--accent-cyan);
  animation: blink 1s steps(1) infinite;
  display: inline-block;
}

.hero-text {
  font-size: 1.04rem;
  max-width: 56ch;
}

.hero-stats {
  display: flex;
  flex-wrap: nowrap;
  gap: clamp(0.8rem, 3vw, 2.4rem);
  padding: 1.1rem 0 0;
  margin: 0.4rem 0 0.2rem;
  border-top: 1px solid var(--glass-border);
  list-style: none;
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
  flex: 1 1 0;
}
.hero-stat-value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 2.4rem);
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.hero-stat-label {
  font-family: var(--font-heading);
  font-size: clamp(0.66rem, 1.4vw, 0.76rem);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.6rem;
}
.hero-buttons.center { justify-content: center; }

.hero-illustration {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-svg {
  width: min(100%, 520px);
  height: auto;
  filter: drop-shadow(0 0 40px rgba(59,130,246,0.25));
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.scroll-indicator:hover { opacity: 1; }
.mouse {
  width: 24px;
  height: 38px;
  border: 1.5px solid rgba(255,255,255,0.45);
  border-radius: 14px;
  position: relative;
}
.wheel {
  position: absolute;
  top: 6px; left: 50%;
  width: 3px; height: 6px;
  background: var(--accent-cyan);
  border-radius: 3px;
  transform: translateX(-50%);
  animation: wheel 1.6s ease-in-out infinite;
}

/* ---------- Glass card (shared) ---------- */
.glass-card {
  position: relative;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.6rem 1.5rem;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  overflow: hidden;
}
.glass-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(59,130,246,0.25), rgba(139,92,246,0.18), transparent 60%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.glass-card:hover {
  transform: translateY(-6px);
  border-color: var(--glass-border-strong);
  box-shadow: 0 20px 50px -20px rgba(0,0,0,0.55), 0 0 0 1px rgba(59,130,246,0.18), var(--glow-blue);
}
.glass-card:hover::before { opacity: 1; }

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(6,182,212,0.18), rgba(139,92,246,0.18));
  border: 1px solid var(--glass-border-strong);
  color: #cfe9ff;
  margin-bottom: 1rem;
  transition: transform var(--transition);
}
.glass-card:hover .card-icon { transform: rotate(-4deg) scale(1.05); }

.card-title { margin-bottom: 0.5rem; }
.card-text  { color: var(--text-muted); font-size: 0.97rem; margin: 0; }
.card-list  { color: var(--text-muted); font-size: 0.97rem; margin: 0; }
.card-list li {
  padding: 0.35rem 0;
  border-bottom: 1px dashed rgba(255,255,255,0.06);
}
.card-list li:last-child { border-bottom: 0; }

/* ---------- Portfolio ---------- */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  margin: 0 auto 2rem;
  max-width: 900px;
}
.portfolio-filter {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition), background var(--transition),
              border-color var(--transition), box-shadow var(--transition),
              transform var(--transition);
}
.portfolio-filter:hover {
  color: var(--text);
  background: rgba(59, 130, 246, 0.10);
  border-color: rgba(59, 130, 246, 0.35);
  transform: translateY(-1px);
}
.portfolio-filter.active {
  background: var(--grad-primary);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 22px -10px rgba(59, 130, 246, 0.6), var(--glow-blue);
}

/* Sector-detail panels (revealed when a sector chip is active) */
.portfolio-panels {
  margin: 0 0 1.6rem;
}
.portfolio-panel {
  padding: 1.4rem clamp(1rem, 3vw, 1.8rem);
  border-radius: var(--radius-md);
  background: rgba(17, 24, 39, 0.42);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  animation: fadeUp 320ms cubic-bezier(0.22, 1, 0.36, 1);
}
.portfolio-panel[hidden] { display: none; }

.panel-title {
  font-family: var(--font-heading);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0 0 0.9rem;
  color: var(--text);
}

.panel-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.4rem 1.4rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.panel-list li {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.55rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}
.panel-list li:last-child { border-bottom: 0; }
.panel-list strong {
  font-family: var(--font-heading);
  color: var(--text);
  font-weight: 600;
  font-size: 0.94rem;
}
.panel-list span {
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

/* All-Sectors overview: compact multi-sector grid.
   180px min fits all five sectors on one desktop row — at 200px the
   fifth (Others) wrapped alone onto a second row. Narrower viewports
   still step down to 3 / 2 / 1 columns exactly as before. */
.panel-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.4rem 1.6rem;
}
.panel-group h4 {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 0.7rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
}
.panel-group ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.panel-group li {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text);
  padding: 0.2rem 0;
  position: relative;
  padding-left: 1rem;
}
.panel-group li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grad-primary);
  transform: translateY(-50%);
  opacity: 0.9;
}

.portfolio-matrix {
  margin: 0 0 2.4rem;
  padding: 2rem clamp(1rem, 3vw, 2rem);
  text-align: center;
}
.matrix-chart {
  width: 100%;
  max-width: 720px;
  height: auto;
  margin: 1.2rem auto 0;
  display: block;
  color: var(--text);
}

/* Portfolio card grid — inherits .grid.grid-3 */
/* Portfolio card grid — auto-fit + center so any number of visible
   cards (1-4 depending on active filter) lays out cleanly */
.portfolio-grid {
  position: relative;
  grid-template-columns: repeat(auto-fit, minmax(260px, 340px));
  justify-content: center;
}

.portfolio-card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  transition: opacity 320ms ease, transform 320ms ease;
}
.portfolio-card.hidden {
  display: none;
}
.portfolio-badge {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-heading);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.35);
  color: #cfe0ff;
  margin-bottom: 0.5rem;
}
.portfolio-stats {
  display: flex;
  gap: 1rem;
  margin-top: auto;
  padding-top: 0.9rem;
  border-top: 1px solid var(--glass-border);
  flex-wrap: wrap;
}
.portfolio-stat {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.portfolio-stat strong {
  color: var(--text);
  font-weight: 600;
}

/* ---------- Industry Insights ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.insights-selector {
  max-width: 420px;
  margin: 0 auto 1.6rem;
}
.insights-selector .select-wrap { position: relative; }
.insights-selector select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: rgba(5, 8, 22, 0.55);
  border: 1px solid var(--glass-border-strong);
  border-radius: 14px;
  padding: 0.95rem 2.6rem 0.95rem 1.1rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  outline: none;
}
.insights-selector select:focus,
.insights-selector select:hover {
  border-color: rgba(59, 130, 246, 0.55);
  background: rgba(5, 8, 22, 0.75);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}
.insights-selector select option {
  background: #0B1020;
  color: var(--text);
}
.insights-selector .select-caret {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.insights-placeholder {
  text-align: center;
  padding: 1.8rem;
  color: var(--text-muted);
  font-size: 0.98rem;
  margin: 0;
}
.insights-placeholder[hidden] { display: none; }

.insight-panel {
  padding: clamp(1.4rem, 3vw, 2rem);
  animation: fadeUp 320ms cubic-bezier(0.22, 1, 0.36, 1);
}
.insight-panel[hidden] { display: none; }

.insight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.6rem;
  margin-top: 1rem;
}
.insight-block h4 {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 0.7rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--glass-border);
}
.insight-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.insight-block li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.2rem;
  color: var(--text);
  font-size: 0.94rem;
  line-height: 1.5;
}
.insight-block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--grad-primary);
  opacity: 0.85;
}

/* ---------- Team ---------- */
.team-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding-top: 2rem;
}
.team-card .card-text { text-align: center; }

.avatar {
  width: 90px;
  height: 95px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,0.18), transparent 55%),
    var(--grad-primary);
  border: 1px solid rgba(255,255,255,0.18);
  box-shadow: 0 12px 30px -12px rgba(59,130,246,0.55), var(--glow-blue);
  margin-bottom: 0.4rem;
  position: relative;
  isolation: isolate;
}
.avatar::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.10);
  pointer-events: none;
}
.avatar-initials {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.7rem;
  color: #fff;
  letter-spacing: 0.04em;
  text-shadow: 0 1px 2px rgba(0,0,0,0.25);
}
.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

/* Zoom in just on Gaurav Khanna's portrait — the source image sits
   further out than Pallaw's; scale it up + shift the origin slightly
   above center so his face stays framed inside the circle. */
.avatar:has(.avatar-img[src*="gaurav"]) { overflow: hidden; }
.avatar-img[src*="gaurav"] {
  transform: scale(1.35);
  transform-origin: 50% 15%;
}

.team-role {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
  letter-spacing: 0.01em;
}

/* Skill chips */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
  margin: 0.8rem 0 0;
  padding: 0;
}
.skill-tags li {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  background: rgba(59,130,246,0.10);
  border: 1px solid rgba(59,130,246,0.28);
  color: #cfe0ff;
}
.skill-tags.large li {
  font-size: 0.82rem;
  padding: 0.45rem 0.95rem;
  letter-spacing: 0.06em;
}

/* Team card grid — center incomplete rows (works for 2 or 3 cards) */
#team .grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 380px));
  justify-content: center;
}

.team-expertise {
  margin-top: 3rem;
  text-align: center;
  max-width: 900px;
  margin-inline: auto;
  padding: 1.8rem clamp(1rem, 4vw, 2rem);
  border-radius: var(--radius-md);
  background: rgba(17, 24, 39, 0.4);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}
.expertise-title {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}
.expertise-lead {
  color: var(--text-muted);
  margin: 0 0 1rem;
  font-size: 0.95rem;
}

/* ---------- Timeline (R&D) ---------- */
.timeline {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding-inline: 1rem;
}
.timeline::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(to bottom, transparent, rgba(59,130,246,0.6), rgba(139,92,246,0.6), transparent);
  transform: translateX(-50%);
}
.timeline-item {
  position: relative;
  width: 50%;
  padding: 0.6rem 2rem 2.4rem;
}
.timeline-item:nth-child(odd) { left: 0; text-align: right; }
.timeline-item:nth-child(even) { left: 50%; }
.timeline-dot {
  position: absolute;
  top: 1.2rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--grad-primary);
  box-shadow: 0 0 0 4px rgba(59,130,246,0.18), var(--glow-blue);
}
.timeline-item:nth-child(odd) .timeline-dot  { right: -7px; }
.timeline-item:nth-child(even) .timeline-dot { left: -7px; }
.timeline-card { padding: 1.2rem 1.3rem; }

/* ---------- Contact ---------- */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 1.4rem;
  align-items: stretch;
}
.contact-card { padding: 1.8rem; }
.contact-list li {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--glass-border);
}
.contact-list li:last-child { border-bottom: 0; }
.contact-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(6,182,212,0.18), rgba(139,92,246,0.18));
  border: 1px solid var(--glass-border-strong);
  color: #cfe9ff;
  flex-shrink: 0;
}
.contact-label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.contact-value {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--text);
}
a.contact-value:hover { color: var(--accent-cyan); }

/* ---------- Contact form ---------- */
.contact-form { padding: 1.8rem; display: flex; flex-direction: column; gap: 1rem; }
.form-title { margin: 0 0 0.25rem; }
.form-sub {
  margin: 0 0 0.6rem;
  font-size: 0.92rem;
  color: var(--text-faint);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-field { display: flex; flex-direction: column; gap: 0.4rem; }
.form-field label {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--text);
  background: rgba(5, 8, 22, 0.55);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0.8rem 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  outline: none;
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: rgba(209, 213, 219, 0.45); }

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: rgba(59, 130, 246, 0.55);
  background: rgba(5, 8, 22, 0.75);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.15);
}

.form-field input:invalid:not(:placeholder-shown),
.form-field textarea:invalid:not(:placeholder-shown) {
  border-color: rgba(244, 63, 94, 0.55);
}

.form-field textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.5;
}

/* Custom select with caret */
.select-wrap { position: relative; }
.form-field select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 2.4rem;
  cursor: pointer;
}
.form-field select option {
  background: #0B1020;
  color: var(--text);
}
.select-caret {
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Honeypot — hidden from real users */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.form-submit {
  align-self: flex-start;
  margin-top: 0.4rem;
}
.form-submit[disabled] {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none !important;
}

.form-status {
  margin: 0;
  min-height: 1.4em;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.form-status.success { color: #5eead4; }
.form-status.error   { color: #fda4af; }

.map-card { padding: 0; overflow: hidden; }
.map-placeholder {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 260px;
  display: flex;
  align-items: flex-end;
}
.map-placeholder svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.map-caption {
  position: relative;
  z-index: 1;
  margin: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(5,8,22,0.6);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(8px);
}

/* ---------- Footer ---------- */
.footer {
  position: relative;
  border-top: 1px solid var(--glass-border);
  padding-block: 2.4rem;
  background: rgba(5,8,22,0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  margin-top: 3rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1.4fr 0.8fr;
  align-items: center;
  gap: 1.5rem;
  position: relative;
  z-index: 1;
}
.footer-brand { display: flex; flex-direction: column; gap: 0.4rem; }
.footer-tagline {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  justify-content: center;
}
.footer-nav a {
  color: var(--text-muted);
  font-size: 0.92rem;
}
.footer-nav a:hover { color: var(--text); }

.footer-social {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
}
.social-link {
  width: 38px; height: 38px;
  border-radius: 10px;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.04);
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
}
.social-link:hover {
  color: var(--text);
  border-color: var(--glass-border-strong);
  transform: translateY(-2px);
}

.footer-copy {
  grid-column: 1 / -1;
  text-align: center;
  margin: 0.8rem 0 0;
  font-size: 0.85rem;
  color: var(--text-faint);
  padding-top: 1rem;
  border-top: 1px solid var(--glass-border);
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--grad-primary);
  border: none;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 12px 30px -10px rgba(59,130,246,0.6), var(--glow-blue);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 90;
}
.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover { transform: translateY(-3px); }

/* =================================================================
   LIGHT THEME
   Activated by `data-theme="light"` on <html>.
   Overrides palette variables + the spots that hardcoded dark colors.
   ================================================================ */
:root[data-theme="light"] {
  --bg-1: #F8FAFC;
  --bg-2: #FFFFFF;
  --bg-soft: #F1F5F9;

  --text: #0F172A;
  --text-muted: #475569;
  --text-faint: rgba(15, 23, 42, 0.55);

  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-border: rgba(15, 23, 42, 0.08);
  --glass-border-strong: rgba(15, 23, 42, 0.18);

  --glow-blue: 0 0 28px rgba(59, 130, 246, 0.18);
  --glow-purple: 0 0 28px rgba(139, 92, 246, 0.18);
}

[data-theme="light"] body {
  background:
    radial-gradient(1200px 800px at 80% -10%, rgba(59,130,246,0.10), transparent 60%),
    radial-gradient(900px 700px at -10% 30%, rgba(139,92,246,0.10), transparent 55%),
    linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
}

[data-theme="light"] ::selection {
  background: rgba(59, 130, 246, 0.22);
  color: #0F172A;
}

/* Navbar */
[data-theme="light"] .navbar {
  background: rgba(255, 255, 255, 0.7);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.08);
}
[data-theme="light"] .nav-link.active {
  color: #0F172A;
  background: rgba(59, 130, 246, 0.12);
  box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.35);
}
[data-theme="light"] .hamburger {
  background: rgba(15, 23, 42, 0.04);
}
[data-theme="light"] .theme-toggle {
  background: rgba(15, 23, 42, 0.04);
}

/* Mobile drawer */
@media (max-width: 860px) {
  [data-theme="light"] .nav-menu {
    background: rgba(255, 255, 255, 0.96);
    border-top-color: var(--glass-border);
  }
}

/* Eyebrow chips that used a translucent-white background */
[data-theme="light"] .eyebrow {
  background: rgba(15, 23, 42, 0.04);
  color: #1e293b;
}
[data-theme="light"] .section-tag {
  background: rgba(59, 130, 246, 0.10);
  border-color: rgba(59, 130, 246, 0.35);
  color: #1d4ed8;
}
[data-theme="light"] .section-tag.light {
  background: rgba(15, 23, 42, 0.06);
  border-color: rgba(15, 23, 42, 0.14);
  color: #0F172A;
}

/* Secondary button — was barely visible on white */
[data-theme="light"] .btn-secondary {
  background: rgba(15, 23, 42, 0.04);
  color: var(--text);
  border-color: rgba(15, 23, 42, 0.16);
}
[data-theme="light"] .btn-secondary:hover {
  border-color: rgba(15, 23, 42, 0.4);
  box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.08);
}

/* Glass cards */
[data-theme="light"] .glass-card {
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 10px 30px -20px rgba(15, 23, 42, 0.18);
}
[data-theme="light"] .glass-card:hover {
  box-shadow:
    0 20px 50px -20px rgba(15, 23, 42, 0.18),
    0 0 0 1px rgba(59, 130, 246, 0.18),
    var(--glow-blue);
}
[data-theme="light"] .card-icon {
  background: linear-gradient(135deg, rgba(6,182,212,0.12), rgba(139,92,246,0.12));
  color: #1e3a8a;
}
[data-theme="light"] .card-list li {
  border-bottom-color: rgba(15, 23, 42, 0.08);
}

/* Timeline rail */
[data-theme="light"] .timeline::before {
  background: linear-gradient(to bottom, transparent, rgba(59,130,246,0.45), rgba(139,92,246,0.45), transparent);
}

/* Contact form */
[data-theme="light"] .contact-form input,
[data-theme="light"] .contact-form select,
[data-theme="light"] .contact-form textarea {
  background: rgba(255, 255, 255, 0.9);
  color: #0F172A;
  border-color: rgba(15, 23, 42, 0.12);
}
[data-theme="light"] .form-field input::placeholder,
[data-theme="light"] .form-field textarea::placeholder {
  color: rgba(15, 23, 42, 0.4);
}
[data-theme="light"] .form-field input:focus,
[data-theme="light"] .form-field select:focus,
[data-theme="light"] .form-field textarea:focus {
  background: #fff;
  border-color: rgba(59, 130, 246, 0.55);
}
[data-theme="light"] .form-field select option {
  background: #ffffff;
  color: #0F172A;
}
[data-theme="light"] .form-status.success { color: #047857; }
[data-theme="light"] .form-status.error   { color: #b91c1c; }

/* Contact icon tile */
[data-theme="light"] .contact-icon {
  background: linear-gradient(135deg, rgba(6,182,212,0.14), rgba(139,92,246,0.14));
  color: #1e3a8a;
}
[data-theme="light"] .contact-list li { border-bottom-color: rgba(15, 23, 42, 0.08); }

/* Scroll indicator */
[data-theme="light"] .mouse { border-color: rgba(15, 23, 42, 0.4); }

/* Footer */
[data-theme="light"] .footer {
  background: rgba(255, 255, 255, 0.7);
  border-top-color: var(--glass-border);
}
[data-theme="light"] .social-link {
  background: rgba(15, 23, 42, 0.04);
}
[data-theme="light"] .footer-copy { border-top-color: var(--glass-border); }

/* Background visual effects dimmed for light */
[data-theme="light"] .particle-canvas { opacity: 0.4; }
[data-theme="light"] .blob {
  mix-blend-mode: multiply;
  opacity: 0.35;
  filter: blur(90px);
}
[data-theme="light"] .gradient-mesh { opacity: 0.5; }

/* Scroll progress bar shadow softer on white */
[data-theme="light"] .scroll-progress span {
  box-shadow: 0 0 10px rgba(59,130,246,0.35);
}

/* Card title stays readable on hover (dark-mode rule forces #fff) */
[data-theme="light"] .glass-card:hover .card-title { color: #0F172A; }

/* Portfolio filters + badges */
[data-theme="light"] .portfolio-filter {
  background: rgba(15, 23, 42, 0.04);
  color: #475569;
}
[data-theme="light"] .portfolio-filter:hover {
  color: #0F172A;
  background: rgba(59, 130, 246, 0.10);
}
[data-theme="light"] .portfolio-filter.active {
  background: var(--grad-primary);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 22px -10px rgba(59, 130, 246, 0.5), 0 0 0 4px rgba(59, 130, 246, 0.12);
}
[data-theme="light"] .portfolio-filter.active:hover {
  background: var(--grad-primary);
  color: #fff;
}
[data-theme="light"] .portfolio-badge {
  color: #1d4ed8;
  background: rgba(59, 130, 246, 0.10);
  border-color: rgba(59, 130, 246, 0.32);
}
[data-theme="light"] .portfolio-stats { border-top-color: rgba(15, 23, 42, 0.08); }
[data-theme="light"] .portfolio-panel {
  background: rgba(255, 255, 255, 0.72);
}
[data-theme="light"] .panel-list li { border-bottom-color: rgba(15, 23, 42, 0.08); }
[data-theme="light"] .panel-group h4 { border-bottom-color: rgba(15, 23, 42, 0.10); }

/* Industry Insights */
[data-theme="light"] .insights-selector select {
  background: rgba(255, 255, 255, 0.9);
  color: #0F172A;
  border-color: rgba(15, 23, 42, 0.14);
}
[data-theme="light"] .insights-selector select:focus,
[data-theme="light"] .insights-selector select:hover {
  background: #fff;
  border-color: rgba(59, 130, 246, 0.55);
}
[data-theme="light"] .insights-selector select option {
  background: #ffffff;
  color: #0F172A;
}
[data-theme="light"] .insights-placeholder {
  color: #475569;
  background: rgba(255, 255, 255, 0.7);
}
[data-theme="light"] .insight-block h4 { border-bottom-color: rgba(15, 23, 42, 0.10); }

/* Team chips + expertise band */
[data-theme="light"] .skill-tags li {
  background: rgba(59, 130, 246, 0.10);
  border-color: rgba(59, 130, 246, 0.32);
  color: #1d4ed8;
}
[data-theme="light"] .team-expertise {
  background: rgba(255, 255, 255, 0.7);
}