@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,200..800;1,6..72,200..800&display=swap');

:root {
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  --color-bg-1: rgba(59, 130, 246, 0.08);
  --color-bg-2: rgba(245, 158, 11, 0.08);
  --color-bg-3: rgba(34, 197, 94, 0.08);
  --color-bg-4: rgba(239, 68, 68, 0.08);
  --color-bg-5: rgba(147, 51, 234, 0.08);
  --color-bg-6: rgba(249, 115, 22, 0.08);
  --color-bg-7: rgba(236, 72, 153, 0.08);
  --color-bg-8: rgba(6, 182, 212, 0.08);

  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);
  --color-select-caret: rgba(var(--color-slate-900-rgb), 0.8);

  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  --color-success-rgb: 33, 128, 141;
  --color-error-rgb: 192, 21, 47;
  --color-warning-rgb: 168, 75, 47;
  --color-info-rgb: 98, 108, 113;

  --font-family-base: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-serif: "Newsreader", "EB Garamond", serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15), inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;

  /* Adaptive Themes */
  --theme-water-primary: #38bdf8;
  --theme-water-bg: rgba(56, 189, 248, 0.1);
  --theme-pixel-primary: #fbbf24;
  --theme-pixel-bg: rgba(251, 191, 36, 0.1);
  --theme-gym-primary: #f87171;
  --theme-gym-bg: rgba(248, 113, 113, 0.1);
  --theme-mun-primary: #a78bfa;
  --theme-mun-bg: rgba(167, 139, 250, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-gray-400-rgb: 119, 124, 124;
    --color-teal-300-rgb: 50, 184, 198;
    --color-gray-300-rgb: 167, 169, 169;
    --color-gray-200-rgb: 245, 245, 245;

    --color-bg-1: rgba(29, 78, 216, 0.15);
    --color-bg-2: rgba(180, 83, 9, 0.15);
    --color-bg-3: rgba(21, 128, 61, 0.15);
    --color-bg-4: rgba(185, 28, 28, 0.15);
    --color-bg-5: rgba(107, 33, 168, 0.15);
    --color-bg-6: rgba(194, 65, 12, 0.15);
    --color-bg-7: rgba(190, 24, 93, 0.15);
    --color-bg-8: rgba(8, 145, 178, 0.15);

    --color-background: var(--color-charcoal-700);
    --color-surface: var(--color-charcoal-800);
    --color-text: var(--color-gray-200);
    --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
    --color-primary: var(--color-teal-300);
    --color-primary-hover: var(--color-teal-400);
    --color-primary-active: var(--color-teal-800);
    --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
    --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
    --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
    --color-border: rgba(var(--color-gray-400-rgb), 0.3);
    --color-error: var(--color-red-400);
    --color-success: var(--color-teal-300);
    --color-warning: var(--color-orange-400);
    --color-info: var(--color-gray-300);
    --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
    --color-btn-primary-text: var(--color-slate-900);
    --color-card-border: rgba(var(--color-gray-400-rgb), 0.2);
    --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
    --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1), inset 0 -1px 0 rgba(0, 0, 0, 0.15);
    --button-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
    --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

    --focus-ring: 0 0 0 3px var(--color-focus-ring);
    --focus-outline: 2px solid var(--color-primary);
    --status-bg-opacity: 0.15;
    --status-border-opacity: 0.25;

    --color-success-rgb: var(--color-teal-300-rgb);
    --color-error-rgb: var(--color-red-400-rgb);
    --color-warning-rgb: var(--color-orange-400-rgb);
    --color-info-rgb: var(--color-gray-300-rgb);
  }
}

[data-color-scheme="dark"] {
  --color-gray-400-rgb: 119, 124, 124;
  --color-teal-300-rgb: 50, 184, 198;
  --color-gray-300-rgb: 167, 169, 169;
  --color-gray-200-rgb: 245, 245, 245;

  --color-bg-1: rgba(29, 78, 216, 0.15);
  --color-bg-2: rgba(180, 83, 9, 0.15);
  --color-bg-3: rgba(21, 128, 61, 0.15);
  --color-bg-4: rgba(185, 28, 28, 0.15);
  --color-bg-5: rgba(107, 33, 168, 0.15);
  --color-bg-6: rgba(194, 65, 12, 0.15);
  --color-bg-7: rgba(190, 24, 93, 0.15);
  --color-bg-8: rgba(8, 145, 178, 0.15);

  --color-background: #0f172a; /* Slightly warmer dark blue-gray */
  --color-surface: #1e293b;
  --color-text: var(--color-gray-200);
  --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
  --color-primary: var(--color-teal-300);
  --color-primary-hover: var(--color-teal-400);
  --color-primary-active: var(--color-teal-800);
  --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
  --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
  --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
  --color-border: rgba(var(--color-gray-400-rgb), 0.3);
  --color-error: var(--color-red-400);
  --color-success: var(--color-teal-300);
  --color-warning: var(--color-orange-400);
  --color-info: var(--color-gray-300);
  --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
  --color-btn-primary-text: var(--color-slate-900);
  --color-card-border: rgba(var(--color-gray-400-rgb), 0.15);
  --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.1), inset 0 -1px 0 rgba(0, 0, 0, 0.15);
  --color-border-secondary: rgba(var(--color-gray-400-rgb), 0.2);
  --color-select-caret: rgba(var(--color-gray-200-rgb), 0.8);

  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;

  --color-success-rgb: var(--color-teal-300-rgb);
  --color-error-rgb: var(--color-red-400-rgb);
  --color-warning-rgb: var(--color-orange-400-rgb);
  --color-info-rgb: var(--color-gray-300-rgb);
}

[data-color-scheme="light"] {
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;

  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);

  --color-success-rgb: var(--color-teal-500-rgb);
  --color-error-rgb: var(--color-red-500-rgb);
  --color-warning-rgb: var(--color-orange-500-rgb);
  --color-info-rgb: var(--color-slate-500-rgb);
}

html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  color: var(--color-text);
  background:
    radial-gradient(circle at top left, rgba(50,184,198,0.12), transparent 40%),
    radial-gradient(circle at bottom right, rgba(192,21,47,0.14), transparent 45%),
    linear-gradient(to bottom, rgba(255,255,255,0.02) 1px, transparent 1px),
    var(--color-background);
  background-size: 100% 100%, 100% 100%, 100% 24px, 100% 100%;
}

*, *::before, *::after {
  box-sizing: inherit;
}

h1,h2,h3,h4,h5,h6 {
  margin: 0;
  font-family: var(--font-family-serif);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 { font-size: 40px; }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }

p { margin: 0 0 var(--space-16) 0; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover { color: var(--color-primary-hover); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
  gap: 6px;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-teal-500), var(--color-teal-300));
  color: var(--color-btn-primary-text);
  box-shadow: 0 10px 30px rgba(var(--color-teal-500-rgb), 0.4);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-teal-600), var(--color-teal-400));
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(var(--color-teal-500-rgb), 0.5);
}

.btn--ghost {
  background: rgba(15,23,42,0.6);
  color: var(--color-text-secondary);
  border: 1px solid rgba(148,163,184,0.5);
  backdrop-filter: blur(10px);
}

.btn--ghost:hover {
  background: rgba(15,23,42,0.9);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.container {
  width: 100%;
  margin: 0 auto;
  padding: 24px 16px 64px;
  max-width: 1120px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: var(--space-16);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.logo-badge {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: radial-gradient(circle at 20% 0, rgba(56,189,248,0.9), transparent 55%),
              radial-gradient(circle at 80% 100%, rgba(248,113,113,0.9), transparent 60%),
              rgba(15,23,42,1);
  border: 1px solid rgba(148,163,184,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(15,23,42,0.9);
}

.logo-badge span {
  font-family: var(--font-family-mono);
  font-size: 16px;
  color: var(--color-cream-50);
}

.nav-links {
  display: flex;
  gap: 20px;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  align-items: center;
}

.nav-links a {
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-teal-300), var(--color-orange-400));
  transition: width var(--duration-normal) var(--ease-standard);
}

.nav-links a:hover::after {
  width: 100%;
}

.theme-toggle {
  width: 44px;
  height: 24px;
  border-radius: 12px;
  background: rgba(148,163,184,0.3);
  border: 1px solid rgba(148,163,184,0.5);
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 2px;
  transition: all var(--duration-normal) var(--ease-standard);
  position: relative;
}

.theme-toggle:hover {
  background: rgba(148,163,184,0.4);
}

.theme-toggle-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  transition: transform var(--duration-normal) var(--ease-standard);
}

.interests-page .easter-egg-trigger {
    cursor: pointer;
    border-bottom: 1px dashed var(--color-primary);
    color: var(--color-primary);
    position: relative;
    display: inline-block;
    transition: all 0.2s;
}

.interests-page .easter-egg-trigger:hover {
    color: var(--color-primary-hover);
    border-bottom-style: solid;
}

[data-color-scheme="light"] .theme-toggle-dot {
  transform: translateX(0);
}

[data-color-scheme="dark"] .theme-toggle-dot {
  transform: translateX(20px);
}

@media (max-width: 880px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .nav-links {
    width: 100%;
    justify-content: flex-start;
    overflow-x: auto;
  }
}

.section {
  margin-top: 40px;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.section-title {
  font-size: var(--font-size-xl);
  color: var(--color-cream-50);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-title span.badge-num {
  font-family: var(--font-family-mono);
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.6);
  color: var(--color-text-secondary);
}

.section-subtitle {
  font-size: 12px;
  color: var(--color-text-secondary);
  max-width: 420px;
}

.card {
  background-color: rgba(15,23,42,0.9);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148,163,184,0.5);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  position: relative;
}

.card-header {
  padding: 14px 16px 10px;
  border-bottom: 1px solid rgba(148,163,184,0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-header h3 {
  font-size: 14px;
  color: #e5e7eb;
}

.card-tag {
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(56,189,248,0.6);
  color: #bae6fd;
  background: rgba(15,23,42,0.95);
  white-space: nowrap;
}

.card-body {
  padding: 10px 16px 14px;
  font-size: 12px;
  color: var(--color-text-secondary);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-footer {
  padding: 10px 16px 12px;
  border-top: 1px solid rgba(148,163,184,0.4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--color-text-secondary);
}

.card-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-links a {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #bfdbfe;
}

.badge-status {
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 10px;
  border: 1px solid rgba(248,250,252,0.12);
}

.badge-status--active {
  background: rgba(22,163,74,0.18);
  border-color: rgba(74,222,128,0.6);
  color: #bbf7d0;
}

.badge-status--ongoing {
  background: rgba(56,189,248,0.16);
  border-color: rgba(56,189,248,0.6);
  color: #e0f2fe;
}

.badge-status--research {
  background: rgba(129,140,248,0.18);
  border-color: rgba(129,140,248,0.6);
  color: #e0e7ff;
}

footer {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid rgba(148,163,184,0.4);
  font-size: 11px;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2') format('woff2');
}

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

img.project-hero {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148,163,184,0.3);
  margin-bottom: 12px;
}