:root {
  /* Light theme (default) */
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --surface-alt: #EEF2FF;

  --text-primary: #0F172A;
  --text-secondary: #334155;

  --accent-primary: #6366F1;
  --accent-secondary: #06B6D4;
  --accent-tertiary: #22C55E;
}

/* Language visibility */
.lang {
  display: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}

/* English */
#lang-en:checked ~ .container .lang-en {
  display: inline;
  opacity: 1;
}

/* Spanish */
#lang-es:checked ~ .container .lang-es {
  display: inline;
  opacity: 1;
}

/* Block-level spans (for paragraphs) */
.lang.block {
  display: none;
}

#lang-en:checked ~ .container .lang-en.block,
#lang-es:checked ~ .container .lang-es.block {
  display: block;
}


.lang-switch {
  position: fixed;
  top: 1rem;
  right: 6.5rem; /* leaves space for theme toggle */
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.25rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  z-index: 1000;
}

.lang-switch label {
  padding: 0.35rem 0.6rem;
  font-size: 0.75rem;
  cursor: pointer;
  border-radius: 999px;
  color: var(--muted);
}
#lang-es, #lang-en { display:none; }
#lang-en:checked ~ .lang-switch label[for="lang-en"],
#lang-es:checked ~ .lang-switch label[for="lang-es"] {
  background: var(--accent-soft);
  color: var(--text);
}



/* Dark theme overrides */
[data-theme="dark"] {
  --bg: #0B1020;
  --surface: #0F172A;
  --surface-alt: #111827;

  --text-primary: #E5E7EB;
  --text-secondary: #94A3B8;

  --accent-primary: #818CF8;
  --accent-secondary: #22D3EE;
  --accent-tertiary: #34D399;

  /* Dark mode gradient boost */
  --bg-gradient-strength-1: 0.32;
  --bg-gradient-strength-2: 0.28;
  --bg-gradient-strength-3: 0.24;
}

/* Dark-only section glow */
[data-theme="dark"] section {
  background:
    linear-gradient(180deg, rgba(15,23,42,0.96), rgba(15,23,42,1)),
    radial-gradient(400px 200px at 90% -20%, rgba(129,140,248,0.18), transparent);
}

[data-theme="dark"] section:nth-of-type(even) {
  background:
    linear-gradient(180deg, rgba(17,24,39,0.96), rgba(17,24,39,1)),
    radial-gradient(400px 200px at -10% 120%, rgba(34,211,238,0.2), transparent);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  background:
    radial-gradient(900px 500px at 15% -10%, color-mix(in srgb, var(--accent-primary) var(--bg-gradient-strength-1, 0.14), transparent), transparent),
    radial-gradient(800px 400px at 85% 20%, color-mix(in srgb, var(--accent-secondary) var(--bg-gradient-strength-2, 0.12), transparent), transparent),
    radial-gradient(700px 400px at 50% 120%, color-mix(in srgb, var(--accent-tertiary) var(--bg-gradient-strength-3, 0.1), transparent), transparent),
    var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] body {
  background:
    radial-gradient(900px 500px at 15% -10%, color-mix(in srgb, var(--accent-primary) 32%, transparent), transparent),
    radial-gradient(800px 400px at 85% 20%, color-mix(in srgb, var(--accent-secondary) 28%, transparent), transparent),
    radial-gradient(700px 400px at 50% 120%, color-mix(in srgb, var(--accent-tertiary) 24%, transparent), transparent),
    var(--bg);
}

/* Hero layout */
.hero {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
  align-items: center;
}

/* Stack on small screens */
@media (max-width: 720px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-media {
    justify-self: center;
  }
}

/* Headshot */
.hero-headshot {
  width: 25vw;
  object-fit: cover;
  border-radius: 16px;
}

/* Hero text container */
.hero-content {
  max-width: 640px;
}


a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

[data-theme="dark"] a {
  color: var(--accent-secondary);
}

a:hover {
  color: var(--accent-tertiary);
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 96px 24px;
}

section {
  margin-bottom: 96px;
  padding: 64px 48px;
  border-radius: 20px;
  background: var(--surface);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.3s ease;
  transition: opacity 0.2s ease;
}

section:nth-of-type(even) {
  background: var(--surface-alt);
}

section:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 16px;
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 10px;
}

h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 56px;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--accent-primary),
    var(--accent-secondary),
    var(--accent-tertiary)
  );
  border-radius: 4px;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--accent-primary);
}

p {
  max-width: 800px;
  margin-bottom: 16px;
}

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

.hero-links {
  margin-top: 24px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.badge {
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent-primary) 30%, transparent),
    color-mix(in srgb, var(--accent-secondary) 30%, transparent)
  );
  color: var(--text-primary);
  padding: 6px 14px;
  font-size: 13px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.3s ease, color 0.3s ease;
}

.badge:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(129,140,248,0.4);
}

ul {
  padding-left: 18px;
  margin: 0;
}

li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--accent-primary),
    transparent
  );
  margin: 48px 0;
}

.cta-link {
  display: inline-block;
  margin-top: 16px;
  font-weight: 600;
  color: var(--accent-primary);
  transition: transform 0.2s ease, color 0.2s ease;
}

.cta-link:hover {
  transform: translateX(6px);
  color: var(--accent-tertiary);
}

footer {
  margin-top: 96px;
  padding-top: 32px;
  border-top: 1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);
  color: var(--text-secondary);
}

footer p {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

@media (max-width: 600px) {
  h1 {
    font-size: 30px;
  }

  section {
    padding: 48px 24px;
  }

  .container {
    padding: 64px 20px;
  }
}

/* Theme toggle button */
#theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--accent-primary) 30%, transparent);
  background: var(--surface);
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  transition:
    background 0.3s ease,
    color 0.3s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
  z-index: 1000;
}

#theme-toggle:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
}

#theme-toggle:active {
  transform: scale(0.95);
}

#theme-toggle:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--accent-secondary) 40%, transparent),
    0 8px 20px rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] #theme-toggle {
  background: var(--surface);
  border-color: color-mix(in srgb, var(--accent-secondary) 35%, transparent);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.4);
}

section {
  padding: 48px 24px;
}

.container {
  padding: 64px 20px;
}

/* Gallery grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.gallery-item {
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--accent-primary) 18%, var(--surface)),
      color-mix(in srgb, var(--accent-secondary) 18%, var(--surface))
    );
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.2);
}