/* ============================================================
   LE LABORATOIRE KALKIN — Portfolio Styles
   ============================================================ */


/* === DESIGN SYSTEM: VARIABLES ============================== */
:root {
  --bg-base:       #080c10;
  --bg-surface:    #0d1117;
  --bg-elevated:   #131920;
  --bg-overlay:    #1a2230;

  --cyan:          #00d4ff;
  --cyan-dim:      rgba(0, 212, 255, 0.12);
  --cyan-glow:     rgba(0, 212, 255, 0.35);

  --purple:        #7c3aed;
  --purple-dim:    rgba(124, 58, 237, 0.15);

  --text-primary:  #e2e8f0;
  --text-muted:    #94a3b8;
  --text-dim:      #475569;

  --green-on:      #22d3a5;
  --amber-warn:    #f59e0b;
  --red-off:       #f43f5e;

  --border-dim:    rgba(148, 163, 184, 0.08);
  --border-mid:    rgba(148, 163, 184, 0.15);
  --border-cyan:   rgba(0, 212, 255, 0.25);

  --font-display:  "Space Grotesk", sans-serif;
  --font-body:     "Inter", "Open Sans", sans-serif;
  --font-mono:     "JetBrains Mono", "Courier New", monospace;

  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;

  --shadow-card:   0 0 24px rgba(0, 212, 255, 0.06);
  --shadow-glow:   0 0 40px rgba(0, 212, 255, 0.18);
  --shadow-purple: 0 0 40px rgba(124, 58, 237, 0.18);

  --nav-height:    56px;
  --max-width:     1200px;
}

/* Light theme overrides */
[data-theme="light"] {
  --bg-base:       #f8fafc;
  --bg-surface:    #ffffff;
  --bg-elevated:   #f1f5f9;
  --bg-overlay:    #e2e8f0;

  --cyan:          #0284c7;
  --cyan-dim:      rgba(2, 132, 199, 0.1);
  --cyan-glow:     rgba(2, 132, 199, 0.25);

  --text-primary:  #0f172a;
  --text-muted:    #475569;
  --text-dim:      #94a3b8;

  --border-dim:    rgba(15, 23, 42, 0.08);
  --border-mid:    rgba(15, 23, 42, 0.15);
  --border-cyan:   rgba(2, 132, 199, 0.3);

  --shadow-card:   0 0 24px rgba(2, 132, 199, 0.06);
  --shadow-glow:   0 0 40px rgba(2, 132, 199, 0.12);
}

/* === RESET & BASE ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
}

ul, ol { list-style: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--cyan); border-radius: 10px; }

/* === HERO DOT GRID (CSS-only, replaces canvas particles) == */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(0, 212, 255, 0.14) 1px, transparent 1px);
  background-size: 30px 30px;
  animation: gridDrift 30s linear infinite;
  z-index: -1;
  pointer-events: none;
}
[data-theme="light"] .hero::before {
  background-image: radial-gradient(circle, rgba(2, 132, 199, 0.12) 1px, transparent 1px);
}


/* === LAYOUT: CONTAINER / SECTION ========================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

section {
  padding: 60px 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 48px;
  line-height: 1.2;
}

/* === NAVBAR ================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  background: rgba(8, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-dim);
  z-index: 200;
  transition: background 0.4s ease;
}

[data-theme="light"] .navbar {
  background: rgba(248, 250, 252, 0.85);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.navbar__logo-icon {
  display: flex;
  animation: logoGlow 2.5s ease-in-out infinite;
}
.navbar__logo-icon svg {
  animation: logoSpin 18s linear infinite;
  width: 28px;
  height: 28px;
}
@keyframes logoGlow {
  0%, 100% { filter: drop-shadow(0 0 4px #00d4ff) drop-shadow(0 0 10px rgba(0,212,255,.25)); }
  50%       { filter: drop-shadow(0 0 12px #00d4ff) drop-shadow(0 0 28px rgba(0,212,255,.55)); }
}
@keyframes logoSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.navbar__logo-text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: 0.12em;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.navbar__link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  transition: color 0.2s;
  text-decoration: none;
}
.navbar__link:hover { color: var(--cyan); }

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

#theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 1px solid var(--border-mid);
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
#theme-toggle:hover {
  color: var(--cyan);
  border-color: var(--border-cyan);
  background: var(--cyan-dim);
}
#theme-toggle svg { width: 16px; height: 16px; }

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-mid);
  color: var(--text-muted);
}
.navbar__hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Mobile nav overlay */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-base);
  z-index: 190;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.nav-overlay.open {
  display: flex;
  opacity: 1;
}
.nav-overlay .navbar__link {
  font-size: 1.2rem;
  letter-spacing: 0.1em;
}

/* Hamburger open state */
.navbar--open .navbar__hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.navbar--open .navbar__hamburger span:nth-child(2) {
  opacity: 0;
}
.navbar--open .navbar__hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* === HERO ================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 40px) 32px 80px;
  position: relative;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 20px;
  opacity: 0.85;
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 10rem);
  line-height: 0.9;
  background: linear-gradient(135deg, #ffffff 0%, var(--cyan) 60%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero__tagline {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-muted);
  font-weight: 300;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.hero__sub {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  margin-bottom: 40px;
  max-width: 560px;
}

.hero__cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  font-weight: 500;
  transition: all 0.25s ease;
  cursor: pointer;
}
.btn--primary {
  background: var(--cyan);
  color: #080c10;
  border: 1px solid var(--cyan);
}
.btn--primary:hover {
  background: transparent;
  color: var(--cyan);
  box-shadow: var(--shadow-glow);
}
.btn--outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-mid);
}
.btn--outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.hero__social {
  display: flex;
  gap: 24px;
  justify-content: center;
}
.hero__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-mid);
  color: var(--text-muted);
  font-size: 1.3rem;
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.hero__social a:hover {
  color: var(--cyan);
  border-color: var(--border-cyan);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.2);
}

.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  animation: scrollBounce 2s ease-in-out infinite;
}
.hero__scroll ion-icon { font-size: 1.1rem; }

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* === ABOUT (brief bio) ===================================== */
.about {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
}

.about__inner {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  align-items: center;
}

.about__img img {
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border-cyan);
  box-shadow: var(--shadow-glow);
  filter: grayscale(20%);
  transition: filter 0.3s, box-shadow 0.3s;
}
.about__img img:hover {
  filter: grayscale(0%);
  box-shadow: 0 0 60px rgba(0, 212, 255, 0.25);
}

.about__text p {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 16px;
}
.about__text p em {
  color: var(--cyan);
  font-style: normal;
}

.about__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
  border-bottom: 1px dashed var(--border-cyan);
  padding-bottom: 2px;
  transition: opacity 0.2s;
  margin-top: 8px;
}
.about__link:hover { opacity: 0.75; }

/* === DASHBOARD ============================================= */
.dashboard {
  position: relative;
}

.dashboard__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 16px;
}

/* Module card */
.module-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  cursor: not-allowed;
  transition: box-shadow 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}
.module-card:hover {
  border-color: var(--cyan);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* scanline overlay */
.module-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 212, 255, 0.012) 2px,
    rgba(0, 212, 255, 0.012) 4px
  );
  pointer-events: none;
  z-index: 0;
}

.module-card__header {
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
  z-index: 1;
}
.module-card__icon {
  font-size: 1.4rem;
  line-height: 1;
}
.module-card__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.14em;
  flex: 1;
}
.module-card__status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red-off);
  box-shadow: 0 0 8px var(--red-off);
  flex-shrink: 0;
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}

.module-card__body {
  position: relative;
  z-index: 1;
}
.module-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.module-card__desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.module-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  position: relative;
  z-index: 1;
}
.module-card__badge {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--amber-warn);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.1em;
}
.module-card__version {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dim);
}

.module-card--link {
  text-decoration: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
}
.module-card--link:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(0, 212, 255, 0.2);
}
.module-card__status-dot--on {
  background: var(--green-on);
  box-shadow: 0 0 8px var(--green-on);
}
.module-card__badge--on {
  color: var(--green-on);
  background: rgba(34, 211, 165, 0.1);
  border-color: rgba(34, 211, 165, 0.3);
}

/* === PROJECTS ============================================== */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 16px;
}

.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.2s ease;
  position: relative;
}
.project-card:hover {
  border-color: var(--border-cyan);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}

.project-card__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--cyan);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.project-card__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}
.project-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}
.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.project-card__tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  background: var(--bg-elevated);
  border: 1px solid var(--border-dim);
  padding: 3px 10px;
  border-radius: 100px;
}
.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
  transition: opacity 0.2s;
  margin-top: 4px;
  align-self: flex-start;
}
.project-card__link:hover { opacity: 0.7; }
.project-card__link ion-icon { font-size: 0.9rem; }

/* Canva embed inside a project card */
.project-card__embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-dim);
}
.project-card__embed iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

/* === SERVICES ============================================== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 16px;
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.service-card:hover {
  border-color: var(--border-cyan);
  box-shadow: var(--shadow-card);
}

.service-card__icon {
  font-size: 2rem;
  color: var(--cyan);
  display: flex;
  align-items: center;
}
.service-card__title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}
.service-card__desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}
.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.service-card__list li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  padding-left: 14px;
  position: relative;
}
.service-card__list li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--cyan);
}

/* === TALKS ================================================= */
.talks__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  margin-top: 16px;
}

.talk-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}
.talk-card:hover {
  border-color: var(--border-cyan);
  box-shadow: var(--shadow-card);
}

.talk-card__embed {
  width: 100%;
  aspect-ratio: 16 / 9;
  position: relative;
}
.talk-card__embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}
.talk-card__info {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.talk-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.talk-card__meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

.talk-card--text {
  justify-content: center;
  min-height: 180px;
}
.talk-card__role {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--cyan);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 10px;
}
.talk-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 2px 0 10px;
  line-height: 1.55;
}
.talk-card__link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  text-decoration: none;
  opacity: 0.75;
  transition: opacity 0.2s;
}
.talk-card__link:hover { opacity: 1; }

/* === FOOTER / CONTACT ====================================== */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-dim);
  padding: 80px 0 40px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 64px;
  margin-bottom: 64px;
  align-items: start;
}

.footer__headline {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.footer__tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.footer__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.footer__links-col h5 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.footer__links-col a,
.footer__links-col p {
  display: block;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  transition: color 0.2s;
}
.footer__links-col a:hover { color: var(--text-primary); }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid var(--border-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

/* === MORE ABOUT (about page) =============================== */
.more-about {
  padding-top: calc(var(--nav-height) + 60px);
  padding-bottom: 100px;
}

.more-about__header {
  margin-bottom: 60px;
}
.more-about__header h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-primary);
}
.more-about__header h2 span {
  color: var(--cyan);
}

.more-about__layout {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 64px;
  align-items: start;
}

.more-about__img img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border-cyan);
  box-shadow: var(--shadow-glow);
  position: sticky;
  top: calc(var(--nav-height) + 20px);
}

.more-about__intro {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 48px;
}

/* === AI PHILOSOPHY ========================================= */
.philosophy {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-md);
  padding: 40px;
  margin-bottom: 48px;
}
.philosophy h3 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.philosophy__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.philosophy__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.philosophy__item strong {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}
.philosophy__item p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* === SKILLS ================================================ */
.skills-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 36px 0 16px;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
}

.skills-section h3:first-child { margin-top: 0; }

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 4px;
}
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border-dim);
  padding: 5px 14px;
  border-radius: 100px;
  transition: border-color 0.2s, color 0.2s;
}
.skill-tag:hover {
  border-color: var(--border-cyan);
  color: var(--cyan);
}

/* === TIMELINE (tabs) ======================================= */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 4px;
  margin: 48px 0 32px;
  width: fit-content;
}
.tab-item {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  transition: background 0.2s, color 0.2s;
  border: none;
  background: none;
  cursor: pointer;
}
.tab-item.active {
  background: var(--bg-surface);
  color: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 212, 255, 0.12);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.timeline { display: flex; flex-direction: column; gap: 32px; }

.timeline-item {
  padding: 24px;
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius-md);
  transition: border-color 0.2s;
}
.timeline-item:hover { border-color: var(--border-cyan); }

.timeline-item .date {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  background: var(--cyan-dim);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 10px;
}
.timeline-item h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.timeline-item h4 span {
  color: var(--cyan);
  font-weight: 400;
}
.timeline-item ul {
  padding-left: 4px;
}
.timeline-item ul li {
  list-style: disc;
  list-style-position: inside;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 4px;
}
.timeline-item ul li strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* === CSS ANIMATIONS (replaces GSAP) ======================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes gridDrift {
  0%   { background-position: 0 0; }
  100% { background-position: 30px 30px; }
}

/* Hero entrance sequence */
.hero__eyebrow { animation: fadeUp 0.6s ease 0.15s both; }
.hero__name    { animation: fadeUp 0.8s ease 0.3s  both; }
.hero__tagline { animation: fadeUp 0.6s ease 0.55s both; }
.hero__sub     { animation: fadeUp 0.6s ease 0.7s  both; }
.hero__cta     { animation: fadeUp 0.6s ease 0.85s both; }
.hero__social  { animation: fadeUp 0.6s ease 1.0s  both; }

/* Scroll-reveal — JS adds .visible via IntersectionObserver */
.section-label,
.section-title {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.section-label.visible,
.section-title.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === CANVA CLICK-TO-LOAD =================================== */
.canva-loader {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-elevated);
  border: 1px dashed var(--border-mid);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.canva-loader:hover {
  border-color: var(--border-cyan);
  background: var(--cyan-dim);
}
.canva-loader__icon {
  color: var(--text-dim);
  font-size: 1.8rem;
  line-height: 1;
}
.canva-loader__text {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}
.canva-loader__btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid var(--border-cyan);
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.2s;
}
.canva-loader__btn:hover { background: rgba(0,212,255,0.2); }

.canva-embed-frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
  display: block;
  border-radius: var(--radius-sm);
}

/* === RESPONSIVE: 900px ==================================== */
@media (max-width: 900px) {
  .about__inner {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }
  .about__img {
    display: flex;
    justify-content: center;
  }
  .more-about__layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .more-about__img {
    display: flex;
    justify-content: center;
  }
  .more-about__img img {
    position: static;
  }
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer__links {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* === RESPONSIVE: 768px ==================================== */
@media (max-width: 768px) {
  .navbar__links { display: none; }
  .navbar__hamburger { display: flex; }

  section { padding: 40px 0; }

  .dashboard__grid {
    grid-template-columns: 1fr;
  }
  .projects__grid {
    grid-template-columns: 1fr;
  }
  .services__grid {
    grid-template-columns: 1fr;
  }
  .talks__grid {
    grid-template-columns: 1fr;
  }
}

/* === RESPONSIVE: 600px ==================================== */
@media (max-width: 600px) {
  .container { padding: 0 20px; }

  .hero__name {
    font-size: clamp(3rem, 18vw, 5rem);
  }
  .hero__cta {
    flex-direction: column;
    align-items: center;
  }
  .footer__links {
    grid-template-columns: 1fr;
  }
  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
  .philosophy__grid {
    grid-template-columns: 1fr;
  }
}