/* Design system */
:root {
  --bg: #F3EFF8;
  --text: #111827;
  --secondary: #5850EC;
  --accent: #f757ff;
  --accent-hover: #d020d8;
  --border: #E5E7EB;
  --card: #FFFFFF;
  --grid-line: rgba(125, 103, 168, 0.08);
  --text-muted: #374151;
  --radius: 1.25rem;
  --shadow: 0 14px 40px rgba(17, 24, 39, 0.08);
}

[data-theme="dark"] {
  --bg: #0b1020;
  --text: #f3f4f6;
  --secondary: #a5b4fc;
  --accent: #f757ff;
  --accent-hover: #f984ff;
  --border: #30374a;
  --card: #11182a;
  --grid-line: rgba(243, 244, 246, 0.05);
  --text-muted: #d1d5db;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top right, rgba(136, 112, 194, 0.18), transparent 40%), var(--bg);
  background-image: linear-gradient(var(--bg), var(--bg)), linear-gradient(to right, var(--grid-line) 1px, transparent 1px), linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: cover, 48px 48px, 48px 48px;
  min-height: 100vh;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 1rem;
  background: var(--text);
  color: var(--bg);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
}
.skip-link:focus { left: 1rem; z-index: 1000; }

.section {
  padding: 4.5rem 4vw;
}

h1, h2, h3 { line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 1rem; }
h1 { font-size: clamp(2.2rem, 5.5vw, 4.5rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.8rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
p { margin: 0 0 1rem; color: var(--text-muted); }

.eyebrow { color: var(--secondary); font-weight: 700; letter-spacing: 0.12em; font-size: 0.8rem; text-transform: uppercase; }
.hero .eyebrow { color: #f757ff; }
.supporting-text { font-size: clamp(1rem, 2vw, 1.25rem); max-width: 65ch; }

/* Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  padding: 1rem 0;
}

.pill-nav {
  width: min(1200px, 92vw);
  margin: 0 auto;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--card) 85%, transparent);
  backdrop-filter: blur(10px);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  gap: 1rem;
}

.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; font-weight: 700; }
.logo-circle { width: 2.2rem; height: 2.2rem; border-radius: 50%; display: grid; place-items: center; background: #0443f2; color: #fff; }
.brand:hover .logo-circle { transform: scale(1.08) rotate(4deg); }

.nav-links { display: flex; align-items: center; gap: 0.45rem; }
.nav-links a, .nav-links button {
  border: 0;
  background: transparent;
  color: var(--text);
  text-decoration: none;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-weight: 500;
  cursor: pointer;
}

.nav-links a[aria-current="page"], .nav-links a:hover, .nav-links button:hover {
  background: color-mix(in srgb, var(--secondary) 15%, transparent);
  color: var(--secondary);
}

.nav-links a, .nav-links button { transition: background 0.22s ease, color 0.22s ease, transform 0.22s ease; }
.nav-links a:hover, .nav-links button:hover { transform: translateY(-1px); }

.nav-toggle { display: none; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  background: #0443f2;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.72rem 1.2rem;
  overflow: hidden;
  position: relative;
  transition: transform 0.28s ease, box-shadow 0.28s ease, filter 0.28s ease;
}
.btn::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -80%;
  width: 55%;
  height: 200%;
  background: rgba(255, 255, 255, 0.22);
  transform: skewX(-20deg);
  transition: left 0.42s ease;
  pointer-events: none;
}
.btn:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 10px 32px rgba(4, 67, 242, 0.35); filter: saturate(1.3); }
.btn:hover::before { left: 130%; }
.btn:focus-visible, button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent-hover);
  outline-offset: 2px;
}
.btn-small { padding: 0.55rem 0.9rem; font-size: 0.9rem; }
.btn-ghost { border-color: var(--border); background: var(--card); color: var(--text); }

.hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 0.5rem);
  background-color: color-mix(in srgb, var(--card) 82%, #ede6f5);
  background-image:
    linear-gradient(color-mix(in srgb, #9a86ba 18%, transparent) 1px, transparent 1px),
    linear-gradient(to right, color-mix(in srgb, #9a86ba 18%, transparent) 1px, transparent 1px);
  background-size: 48px 48px;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#octopus-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}
.hero > *:not(#octopus-canvas) { position: relative; z-index: 1; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.3rem 0; }
.trust-row { display: flex; flex-wrap: wrap; gap: 0.7rem; list-style: none; padding: 0; margin: 0.5rem 0 0; color: var(--secondary); font-weight: 600; }

.section-heading { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.2rem; }

.feature-grid, .tool-grid, .service-grid, .writing-grid, .discipline-columns {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(12, minmax(0, 1fr));
}

.feature-card, .tool-card, .service-card, .writing-card, .project-card, .panel, .doc-block {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 1.2rem;
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}
.feature-card:hover, .tool-card:hover, .service-card:hover, .writing-card:hover, .project-card:hover, .doc-block:hover { border-color: color-mix(in srgb, var(--accent) 42%, var(--border)); }

/* Distinct card hover animations */
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 45px rgba(247, 87, 255, 0.12);
}
.tool-card:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 0 12px 30px rgba(247, 87, 255, 0.14);
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 22px 50px rgba(247, 87, 255, 0.18), var(--shadow);
}
.writing-card:hover {
  transform: translateY(-4px) translateX(3px);
  border-left-width: 3px;
  border-left-color: var(--accent);
}
.project-card:hover {
  transform: perspective(900px) rotateY(-4deg) translateY(-5px);
  box-shadow: 0 16px 40px color-mix(in srgb, var(--secondary) 22%, transparent);
}
.doc-block:hover {
  transform: translateY(-5px) rotate(-1deg);
}

.feature-card { grid-column: span 4; }
.discipline-card { grid-column: span 4; border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); padding: 1rem; }

.keyword-marquee {
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  white-space: nowrap;
  background: var(--card);
  margin-bottom: 1.3rem;
}
.keyword-track { display: inline-flex; gap: 2rem; padding: 0.9rem 0; animation: marquee 28s linear infinite; }
.keyword-marquee:hover .keyword-track { animation-play-state: paused; }
.keyword-track span { font-weight: 700; color: var(--secondary); }
.keyword-track span:nth-child(4n+1) { color: #FF7300; }
.keyword-track span:nth-child(4n+2) { color: #F757FF; }
.keyword-track span:nth-child(4n+3) { color: #7ED957; }
.keyword-track span:nth-child(4n+4) { color: #00CEC8; }

.filter-group { display: inline-flex; flex-wrap: wrap; gap: 0.5rem; position: relative; }
.tab-indicator {
  position: absolute;
  border-radius: 999px;
  background: color-mix(in srgb, var(--secondary) 14%, transparent);
  border: 1.5px solid var(--secondary);
  transition:
    left 0.32s cubic-bezier(0.34, 1.56, 0.64, 1),
    top 0.32s cubic-bezier(0.34, 1.56, 0.64, 1),
    width 0.32s cubic-bezier(0.34, 1.56, 0.64, 1),
    height 0.32s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
  z-index: 0;
}
.filter-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  position: relative;
  z-index: 1;
  transition: background 0.22s ease, color 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
}
.filter-btn:hover { transform: scale(1.06); border-color: var(--secondary); color: var(--secondary); }
.filter-btn.active { border-color: transparent; background: transparent; color: var(--secondary); font-weight: 600; }

.masonry-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 1rem;
}
.project-card { grid-column: span 4; perspective: 1000px; }
.project-card.tall { grid-row: span 2; }
.project-card.wide { grid-column: span 8; }

/* Image-as-card redesign */
.masonry-grid .project-card {
  padding: 0;
  min-height: 240px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: none;
}
.masonry-grid .project-card:nth-child(1) {
  background: linear-gradient(145deg, #0443f2 0%, #7B2FBE 100%);
}
.masonry-grid .project-card:nth-child(2) {
  background: linear-gradient(135deg, #00CEC8 0%, #0443f2 55%, #1a0547 100%);
}
.masonry-grid .project-card:nth-child(3) {
  background: linear-gradient(145deg, #FF7300 0%, #F757FF 100%);
}
.masonry-grid .project-card:nth-child(4) {
  background: linear-gradient(135deg, #7ED957 0%, #00CEC8 100%);
}
.masonry-grid .project-card:nth-child(5) {
  background: linear-gradient(145deg, #5850EC 0%, #0443f2 50%, #00CEC8 100%);
}
.masonry-grid .project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 75% 20%, rgba(255,255,255,0.14) 0%, transparent 55%),
    radial-gradient(circle at 20% 80%, rgba(0,0,0,0.18) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
  transition: opacity 0.35s ease;
}
.masonry-grid .project-card:hover::before { opacity: 0.5; }

.masonry-grid .project-overlay .category {
  color: rgba(255, 255, 255, 0.8);
}

.project-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(0, 0, 0, 0.55) 55%,
    rgba(0, 0, 0, 0.04) 100%
  );
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.project-card:hover .project-overlay,
.project-card:focus-within .project-overlay {
  opacity: 1;
  transform: translateY(0);
}
.project-overlay .category {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.8rem;
  margin-bottom: 0.3rem;
  text-shadow: 0 1px 3px rgba(0,0,0,0.6);
}
.project-overlay h3 {
  color: #fff;
  font-size: clamp(0.95rem, 1.8vw, 1.2rem);
  margin-bottom: 0.4rem;
  text-shadow: 0 2px 6px rgba(0,0,0,0.55);
}
.project-overlay p:not(.category):not(.tools) {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.875rem;
  margin-bottom: 0.4rem;
  text-shadow: 0 1px 3px rgba(0,0,0,0.45);
}
.project-overlay .tools {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.82rem;
  margin-bottom: 0.55rem;
  text-shadow: none;
}
.project-overlay .text-link {
  color: #fff;
  font-size: 0.88rem;
  background-image: linear-gradient(rgba(255,255,255,0.8), rgba(255,255,255,0.8));
}
.project-overlay .text-link:hover { color: #fff; }

.category { color: var(--secondary); font-weight: 700; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; }
.tools { font-size: 0.92rem; color: color-mix(in srgb, var(--text) 70%, white); }
.text-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: left bottom;
  padding-bottom: 1px;
  transition: color 0.28s ease, background-size 0.32s ease;
}
.text-link:hover { color: var(--accent-hover); background-size: 100% 2px; }

.service-card { grid-column: span 4; position: relative; overflow: hidden; }
.service-card::after {
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  right: -30px;
  bottom: -30px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--secondary) 30%, transparent), transparent 70%);
}

.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.7rem; }
.tag-row span {
  font-size: 0.82rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--secondary) 8%, var(--card));
  padding: 0.35rem 0.68rem;
}

.tool-card { grid-column: span 3; }
.tool-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 0.6rem;
  display: block;
  object-fit: contain;
}
.writing-card { grid-column: span 4; }

.cta-block {
  border-radius: calc(var(--radius) + 0.8rem);
  background: color-mix(in srgb, #0443f2 14%, var(--card));
  border: 1px solid var(--border);
  padding: clamp(1.4rem, 5vw, 3rem);
}

/* Internal page styles */
.page-hero { padding-top: 2.6rem; }
.about-grid { display: grid; gap: 1rem; grid-template-columns: 1fr 1.4fr; align-items: start; }
.profile-image { border: 1px solid var(--border); border-radius: var(--radius); min-height: 300px; object-fit: cover; background: var(--card); }
.split-grid { display: grid; gap: 1rem; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panel { min-height: 100%; }
.list { padding-left: 1.25rem; color: color-mix(in srgb, var(--text) 80%, white); }
.search-input {
  width: min(520px, 100%);
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  background: var(--card);
  color: var(--text);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.doc-garden {
  min-height: 310px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.doc-block { animation: float 6.8s ease-in-out infinite; }
.doc-block:nth-child(2n) { animation-delay: 0.8s; }
.doc-block:nth-child(3n) { animation-delay: 1.6s; }

.contact-form {
  display: grid;
  gap: 0.65rem;
}
input, textarea {
  border: 1px solid var(--border);
  border-radius: 0.8rem;
  background: var(--card);
  color: var(--text);
  padding: 0.68rem 0.75rem;
}

.connect-grid { display: grid; gap: 0.6rem; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); background: var(--card); margin-bottom: 0.6rem; overflow: hidden; }
.faq-question {
  width: 100%;
  border: 0;
  background: transparent;
  text-align: left;
  color: var(--text);
  font-weight: 600;
  padding: 1rem;
  cursor: pointer;
}
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.32s ease; padding: 0 1rem; }
.faq-item.open .faq-answer { max-height: 180px; padding-bottom: 1rem; }

/* Footer + utilities */
.site-footer {
  margin: 2rem 0 3rem;
  border-radius: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--card);
  padding: 1.4rem 4vw;
}
.footer-profile { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; cursor: pointer; }
.footer-profile img { width: 74px; height: 74px; border-radius: 50%; border: 1px solid var(--border); object-fit: cover; }
.footer-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 0.8rem; }
.copyright { font-size: 0.86rem; color: color-mix(in srgb, var(--text) 65%, white); }
.hidden-message { min-height: 1.1rem; color: var(--accent-hover); font-weight: 600; }

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 42px;
  height: 42px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }

#keyboard-playground {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 700;
}
.key-pop {
  position: absolute;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--secondary);
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  transform: translate(-50%, -50%);
  animation: fadePop 1s ease forwards;
}

.reveal {
  opacity: 0;
  transform: translateY(22px) scale(0.985);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view { opacity: 1; transform: translateY(0) scale(1); }

/* Stagger animation for grid children */
.stagger-children > * {
  translate: 0 28px;
  scale: 0.96;
  transition:
    translate 0.55s cubic-bezier(0.16, 1, 0.3, 1),
    scale 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}
.stagger-children > *.stagger-visible {
  translate: 0 0;
  scale: 1;
}

/* Button ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
  transform: scale(0);
  animation: rippleOut 0.65s ease-out forwards;
  pointer-events: none;
}

/* Section heading glow-in */
@keyframes headingGlow {
  0%   { text-shadow: none; }
  40%  { text-shadow: 0 0 22px color-mix(in srgb, var(--secondary) 45%, transparent); }
  100% { text-shadow: none; }
}
.section-heading h2.glow-in {
  animation: headingGlow 1.3s ease forwards;
}

@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-9px) rotate(2deg); }
}
@keyframes fadePop {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(0.8); }
  100% { opacity: 0; transform: translate(-50%, -130%) scale(1.2); }
}
@keyframes rippleOut {
  to { transform: scale(4.5); opacity: 0; }
}
@keyframes pulseGlow {
  0%, 100% { box-shadow: var(--shadow); }
  50% { box-shadow: 0 0 28px 4px color-mix(in srgb, var(--accent) 30%, transparent), var(--shadow); }
}

@media (max-width: 1000px) {
  .feature-card, .discipline-card, .tool-card, .project-card, .service-card, .writing-card { grid-column: span 6; }
  .project-card.wide { grid-column: span 12; }
  .about-grid { grid-template-columns: 1fr; }
  .doc-garden { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
    width: 2.3rem;
    height: 2.3rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--card);
    align-items: center;
    justify-content: center;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 4vw;
    right: 4vw;
    top: calc(100% + 0.5rem);
    flex-direction: column;
    align-items: stretch;
    padding: 0.8rem;
    border-radius: 1rem;
    border: 1px solid var(--border);
    background: var(--card);
  }
  .nav-links.open { display: flex; }
  .brand-name { font-size: 0.92rem; }

  .feature-card, .discipline-card, .tool-card, .project-card, .service-card, .writing-card { grid-column: span 12; }
  .split-grid, .doc-garden { grid-template-columns: 1fr; }
}