/* ==========================================================================
   Design tokens
   ========================================================================== */
:root {
  color-scheme: dark;

  /* Surfaces */
  --bg: #05070d;
  --bg-elevated: #0a0e1a;
  --surface: #10141f;
  --surface-hover: #161c2b;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  /* Text */
  --fg: #f1f5f9;
  --fg-muted: #94a3b8;
  --fg-subtle: #64748b;

  /* Accent */
  --accent: #4f8dff;
  --accent-2: #8b5cf6;
  --accent-3: #22d3ee;
  --success: #22c55e;
  --accent-grad: linear-gradient(135deg, var(--accent), var(--accent-2));

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;

  /* Spacing scale (spacious, marketing/portfolio density) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 450ms;

  /* Layout */
  --container-max: 1200px;
  --header-h: 76px;

  /* z-index scale */
  --z-header: 100;
  --z-overlay: 200;
  --z-top: 1000;
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, p, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }

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

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

.font-mono { font-family: var(--font-mono); }
.muted { color: var(--fg-muted); }

/* Focus states, visible everywhere, never removed */
a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent-3);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Touch affordance */
a, button, .tab-btn, .accordion-toggle { cursor: pointer; }

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  z-index: var(--z-top);
  transition: top var(--dur-base) var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

@media (min-width: 768px) {
  .container { padding-inline: 2rem; }
}

/* Icons */
.icon {
  width: 20px;
  height: 20px;
  color: currentColor;
  flex-shrink: 0;
}
.icon-sm { width: 16px; height: 16px; }
.icon-xs { width: 13px; height: 13px; }
.icon-lg { width: 32px; height: 32px; }

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

/* ==========================================================================
   Reveal-on-scroll (JS toggles .is-visible)
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
[data-reveal-delay="1"] { transition-delay: 90ms; }
[data-reveal-delay="2"] { transition-delay: 180ms; }
[data-reveal-delay="3"] { transition-delay: 270ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out), border-color var(--dur-base) var(--ease-out);
  min-height: 44px;
}
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: 0 8px 24px -8px rgba(79, 141, 255, 0.5);
}
.btn-primary:hover { box-shadow: 0 10px 30px -6px rgba(139, 92, 246, 0.55); transform: translateY(-2px); }

.btn-secondary {
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--fg);
}
.btn-secondary:hover { background: var(--surface-hover); border-color: var(--accent); transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-muted);
}
.btn-ghost:hover { color: var(--fg); border-color: var(--border-strong); }

.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.85rem; }

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(5, 7, 13, 0.5);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: rgba(5, 7, 13, 0.78);
}

.nav {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
@media (min-width: 768px) { .nav { padding-inline: 2rem; } }

.nav-logo { display: inline-flex; }
.logo-mark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.logo-dot { color: var(--accent-3); }

.nav-toggle {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  z-index: var(--z-overlay);
}
.nav-toggle .icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--fg-muted);
  position: relative;
  padding: 0.4rem 0.1rem;
  transition: color var(--dur-fast) ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; right: 100%; bottom: -2px;
  height: 2px;
  background: var(--accent-grad);
  border-radius: 2px;
  transition: right var(--dur-base) var(--ease-out);
}
.nav-link:hover { color: var(--fg); }
.nav-link:hover::after, .nav-link.is-active::after { right: 0; }
.nav-link.is-active { color: var(--fg); }

.nav-cta { display: inline-flex; }

@media (max-width: 899px) {
  .nav-toggle { display: grid; }
  .nav-menu {
    position: fixed;
    inset: 0;
    top: var(--header-h);
    height: calc(100dvh - var(--header-h));
    background: var(--bg-elevated);
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    padding: var(--space-6) 1.5rem;
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease-out);
    overflow-y: auto;
  }
  .nav-menu.is-open { transform: translateX(0); }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-5);
    margin-bottom: var(--space-6);
  }
  .nav-link { font-size: 1.4rem; }
  .nav-cta { justify-content: center; }
}
@media (min-width: 900px) {
  .nav-toggle { display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  z-index: 0;
  pointer-events: none;
}
.hero-glow-1 {
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(79, 141, 255, 0.35), transparent 70%);
  top: -120px; right: -100px;
  animation: drift1 18s ease-in-out infinite;
}
.hero-glow-2 {
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.3), transparent 70%);
  bottom: -140px; left: -120px;
  animation: drift2 22s ease-in-out infinite;
}
@keyframes drift1 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-40px, 30px); }
}
@keyframes drift2 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -40px); }
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 40%, transparent 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-7);
  padding-block: var(--space-8) var(--space-7);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-3);
  margin-bottom: var(--space-4);
}
.eyebrow-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-3);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.18);
}

.hero-title {
  font-size: clamp(2.2rem, 6.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.hero-role {
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  font-weight: 500;
  color: var(--fg);
  margin-bottom: var(--space-5);
  min-height: 1.6em;
}
.hero-role-prefix { color: var(--accent); margin-right: 0.5rem; }
.hero-role-text { color: var(--accent-3); }
.typewriter-cursor {
  color: var(--accent-3);
  animation: blink 1s step-start infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-desc {
  max-width: 56ch;
  color: var(--fg-muted);
  font-size: 1.05rem;
  margin-bottom: var(--space-6);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.hero-socials {
  display: flex;
  gap: var(--space-3);
}
.hero-socials a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out);
}
.hero-socials a:hover { color: var(--fg); border-color: var(--accent); transform: translateY(-3px); }

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-avatar-ring {
  position: relative;
  width: min(70vw, 300px);
  aspect-ratio: 1;
  border-radius: 50%;
  padding: 6px;
  background: conic-gradient(from 180deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  animation: spin 12s linear infinite;
}
.hero-avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg);
  border: 6px solid var(--bg);
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero-badge {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: rgba(16, 20, 31, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  animation: float 5s ease-in-out infinite;
}
.hero-badge svg { color: var(--accent-3); }
.hero-badge-1 { top: 8%; left: -4%; animation-delay: 0s; }
.hero-badge-2 { bottom: 10%; right: -6%; animation-delay: 1.5s; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.scroll-cue {
  position: absolute;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  z-index: 1;
  animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 6px); }
}

@media (min-width: 900px) {
  .hero-inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    padding-block: var(--space-7);
  }
  .hero-visual { justify-content: flex-end; }
}

/* ==========================================================================
   Sections (shared)
   ========================================================================== */
.section { padding-block: var(--space-9); position: relative; }
.section-alt { background: var(--bg-elevated); }

.section-head { max-width: 62ch; margin-bottom: var(--space-7); }
.section-title {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.section-sub {
  margin-top: var(--space-3);
  color: var(--fg-muted);
  font-size: 1.05rem;
}

/* ==========================================================================
   Academics
   ========================================================================== */
.academics-grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 720px) {
  .academics-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}

.academic-standout {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}
.standout-number {
  font-family: var(--font-mono);
  font-size: clamp(3rem, 9vw, 4.5rem);
  font-weight: 800;
  line-height: 1;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  flex-shrink: 0;
}
.standout-label {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.4;
  max-width: 22ch;
}

.school-activities-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: var(--space-5);
}

.stat-number {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.8rem, 4vw, 2.3rem);
  font-weight: 700;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat-label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ==========================================================================
   Skills
   ========================================================================== */
.skills-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .skills-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1024px) { .skills-grid { grid-template-columns: repeat(4, 1fr); } }

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) ease, background var(--dur-base) ease;
}
.skill-card:hover { transform: translateY(-4px); border-color: var(--accent); background: var(--surface-hover); }
.skill-card-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: var(--space-4);
}
.skill-card-head svg { color: var(--accent-3); }
.skill-card-head h3 { font-size: 1.02rem; font-weight: 600; }

.chip-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  padding: 0.45rem 0.85rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.chip-ghost {
  color: var(--fg-subtle);
  border-style: dashed;
  background: transparent;
}
.chip-list-sm { margin-block: var(--space-4); }

/* ==========================================================================
   Projects
   ========================================================================== */
.projects-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .projects-grid { grid-template-columns: 1fr 1fr; } }

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) ease, box-shadow var(--dur-base) ease;
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.6);
}
.project-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.project-media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}
.project-card:hover .project-media img { transform: scale(1.05); }
.project-media.is-photo { background: var(--bg-elevated); }
.project-media.is-photo img { object-fit: contain; padding: var(--space-6); box-sizing: border-box; }
.project-media img.obj-top { object-position: center 25%; }
.project-media.is-photo-netzero { background: #427971; }
.project-media.is-photo-netzero img { object-fit: contain; }
.project-tag {
  position: absolute;
  top: var(--space-4); left: var(--space-4);
  padding: 0.4rem 0.85rem;
  background: rgba(5, 7, 13, 0.75);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
}
.project-status {
  position: absolute;
  top: var(--space-4); right: var(--space-4);
  padding: 0.4rem 0.85rem;
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #4ade80;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
}
.project-body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }
.project-body h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: var(--space-3); }
.project-body p { color: var(--fg-muted); font-size: 0.95rem; }
.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg-muted);
  transition: color var(--dur-fast) ease;
}
.project-link:hover { color: var(--accent-3); }

/* ==========================================================================
   Education card (Academics) + shared timeline (Academics, Leadership)
   ========================================================================== */
.education-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.education-card-head {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  margin-bottom: var(--space-4);
}
.education-card-head svg { color: var(--accent); margin-top: 0.2rem; }
.education-card-head h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 0.25rem; }
.education-card-head p { color: var(--fg-muted); font-size: 0.92rem; }

.accordion-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.92rem;
  min-height: 44px;
}
.accordion-toggle .chevron { transition: transform var(--dur-base) var(--ease-out); }
.accordion-toggle[aria-expanded="true"] .chevron { transform: rotate(180deg); }

.accordion-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-slow) var(--ease-out);
}
.accordion-panel.is-open { grid-template-rows: 1fr; }
.accordion-inner { overflow: hidden; }
.accordion-panel .accordion-inner { padding-top: var(--space-4); }
.award-batch + .award-batch { margin-top: var(--space-4); }
.award-batch-title { color: var(--accent-3); font-size: 0.78rem; letter-spacing: 0.04em; margin-bottom: var(--space-2); }
.simple-list li {
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.simple-list li:last-child { border-bottom: none; }

.activity-list { display: grid; gap: var(--space-3); }
.activity-list li {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--dur-fast) ease, background var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out);
}
.activity-list li:hover { border-color: var(--border-strong); background: var(--surface-hover); transform: translateX(4px); }

.activity-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  flex-shrink: 0;
}
.activity-icon svg { width: 17px; height: 17px; }
.activity-icon-blue { background: rgba(79, 141, 255, 0.15); color: #4f8dff; }
.activity-icon-violet { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.activity-icon-cyan { background: rgba(34, 211, 238, 0.15); color: #22d3ee; }
.activity-icon-green { background: rgba(34, 197, 94, 0.15); color: #22c55e; }

.activity-name { font-size: 0.98rem; font-weight: 700; color: var(--fg); line-height: 1.3; }
.activity-org { font-weight: 500; color: var(--fg-muted); font-size: 0.88rem; }

.org-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
  align-items: stretch;
}
@media (min-width: 640px) {
  .org-grid { grid-template-columns: 1fr 1fr; }
}
.org-card {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) ease;
}
.org-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.org-logo {
  flex-shrink: 0;
  width: 96px;
  height: 76px;
  display: grid;
  place-items: center;
  background: #f8fafc;
  border-radius: var(--radius-md);
  padding: 0.65rem;
  overflow: hidden;
}
.org-logo img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.org-info-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.35rem;
}
.org-info h4 { font-size: 1.08rem; font-weight: 700; line-height: 1.3; }
.org-info p { color: var(--fg-muted); font-size: 0.92rem; }
.org-since {
  flex-shrink: 0;
  padding: 0.2rem 0.6rem;
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid rgba(34, 211, 238, 0.3);
  color: var(--accent-3);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-radius: var(--radius-full);
}

.volunteer-standout {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  text-align: center;
  padding: var(--space-7) var(--space-6);
  margin-bottom: var(--space-6);
  background: linear-gradient(135deg, rgba(79, 141, 255, 0.12), rgba(139, 92, 246, 0.12));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
}
.volunteer-standout .standout-label { max-width: none; text-align: left; }

/* ==========================================================================
   Awards
   ========================================================================== */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-7);
}
@media (min-width: 720px) { .stats-strip { grid-template-columns: repeat(4, 1fr); } }

.strip-stat {
  position: relative;
  text-align: center;
  padding: var(--space-7) var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) ease, box-shadow var(--dur-base) ease;
}
.strip-stat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
}
.strip-stat:hover { transform: translateY(-8px); }
.strip-stat svg { width: 30px; height: 30px; margin-bottom: var(--space-4); }
.strip-stat .stat-number { font-size: clamp(2.6rem, 7vw, 3.4rem); font-weight: 800; }
.strip-stat .stat-label {
  display: block;
  margin-top: var(--space-3);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: 0.01em;
  line-height: 1.35;
}

.strip-stat:nth-child(1)::before { background: #4f8dff; }
.strip-stat:nth-child(2)::before { background: #8b5cf6; }
.strip-stat:nth-child(3)::before { background: #22d3ee; }
.strip-stat:nth-child(4)::before { background: #22c55e; }
.strip-stat:nth-child(1) svg { color: #4f8dff; }
.strip-stat:nth-child(2) svg { color: #8b5cf6; }
.strip-stat:nth-child(3) svg { color: #22d3ee; }
.strip-stat:nth-child(4) svg { color: #22c55e; }
.strip-stat:nth-child(1):hover { border-color: #4f8dff; box-shadow: 0 24px 48px -20px rgba(79, 141, 255, 0.45); }
.strip-stat:nth-child(2):hover { border-color: #8b5cf6; box-shadow: 0 24px 48px -20px rgba(139, 92, 246, 0.45); }
.strip-stat:nth-child(3):hover { border-color: #22d3ee; box-shadow: 0 24px 48px -20px rgba(34, 211, 238, 0.45); }
.strip-stat:nth-child(4):hover { border-color: #22c55e; box-shadow: 0 24px 48px -20px rgba(34, 197, 94, 0.45); }

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-4);
}
.tab-btn {
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg-muted);
  border: 1px solid transparent;
  min-height: 40px;
  transition: color var(--dur-fast) ease, background var(--dur-fast) ease, border-color var(--dur-fast) ease;
}
.tab-btn:hover { color: var(--fg); }
.tab-btn.is-active {
  background: var(--accent-grad);
  color: #fff;
}

.tab-panel { display: none; }
.tab-panel.is-active {
  display: block;
  animation: fadeIn var(--dur-base) var(--ease-out);
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.panel-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-subtle);
  margin-bottom: var(--space-4);
}
.panel-source { margin-top: var(--space-4); font-size: 0.85rem; color: var(--fg-muted); }
.panel-source a { color: var(--accent-3); text-decoration: underline; text-underline-offset: 3px; }

.award-list { display: grid; gap: var(--space-3); }
.award-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out);
}
.award-list li:hover { border-color: var(--border-strong); transform: translateX(4px); }
.award-list li svg { color: var(--accent-3); margin-top: 0.15rem; }
.award-list li strong { display: block; font-size: 0.95rem; font-weight: 600; }
.award-list li span { display: block; font-size: 0.82rem; color: var(--fg-muted); margin-top: 0.2rem; }
.award-list li.is-ghost { border-style: dashed; }
.award-list li.is-ghost strong, .award-list li.is-ghost span { color: var(--fg-subtle); }
.award-list li.is-ghost svg { color: var(--fg-subtle); }

/* ==========================================================================
   Testimonials
   ========================================================================== */
.testimonials-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .testimonials-grid { grid-template-columns: repeat(3, 1fr); } }

.testimonial-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5) var(--space-5);
}
.testimonial-card.testimonial-placeholder { border-style: dashed; }
.placeholder-badge {
  position: absolute;
  top: var(--space-4); right: var(--space-4);
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-3);
  background: rgba(34, 211, 238, 0.12);
  border: 1px solid rgba(34, 211, 238, 0.3);
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}
.quote-icon { color: var(--accent-3); margin-bottom: var(--space-3); }
.testimonial-placeholder .quote-icon { color: var(--fg-subtle); }
.testimonial-card blockquote {
  color: var(--fg);
  font-size: 0.98rem;
  font-style: italic;
  line-height: 1.6;
}
.testimonial-placeholder blockquote { color: var(--fg-muted); }
.testimonial-card figcaption {
  margin-top: var(--space-4);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg);
}
.testimonial-placeholder figcaption { color: var(--fg-subtle); }
.testimonial-source { margin-top: var(--space-3); font-size: 0.78rem; color: var(--fg-muted); }
.testimonial-source a { color: var(--accent-3); text-decoration: underline; text-underline-offset: 3px; }

/* ==========================================================================
   Press
   ========================================================================== */
.press-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .press-grid { grid-template-columns: 1fr 1fr; } }

.press-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: transform var(--dur-base) var(--ease-out), border-color var(--dur-base) ease;
}
.press-card:hover { transform: translateY(-3px); border-color: var(--accent-3); }
.press-card > svg:first-child { color: var(--accent); margin-top: 0.15rem; }
.press-source { font-size: 0.75rem; color: var(--accent-3); margin-bottom: 0.35rem; letter-spacing: 0.03em; }
.press-card h3 { font-size: 1rem; font-weight: 600; line-height: 1.4; }
.press-external { margin-left: auto; color: var(--fg-subtle); flex-shrink: 0; }
.press-card-ghost { border-style: dashed; cursor: default; }
.press-card-ghost:hover { transform: none; border-color: var(--border); }
.press-card-ghost svg:first-child { color: var(--fg-subtle); }
.press-card-ghost .press-source { color: var(--fg-subtle); }
.press-card-ghost h3 { color: var(--fg-muted); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: var(--space-7) var(--space-5);
  background: var(--bg-elevated);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: var(--space-6);
}
.footer-brand p { color: var(--fg-muted); font-size: 0.9rem; margin-top: 0.4rem; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.footer-links a:hover { color: var(--fg); }
.footer-socials { display: flex; gap: var(--space-3); }
.footer-socials a {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}
.footer-socials a:hover { color: var(--fg); border-color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: var(--space-5);
  font-size: 0.82rem;
  color: var(--fg-subtle);
}

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out), border-color var(--dur-fast) ease;
  z-index: var(--z-overlay);
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.back-to-top:hover { border-color: var(--accent); }

/* ==========================================================================
   Large screens
   ========================================================================== */
@media (min-width: 1440px) {
  :root { --container-max: 1280px; }
  .hero-title { font-size: 4rem; }
}