*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --color-bg: #fafaf8;
  --color-surface: #f2f1ed;
  --color-text: #1a1a18;
  --color-muted: #6b6b67;
  --color-hint: #a8a8a3;
  --color-border: rgba(26,26,24,0.1);
  --color-border-hover: rgba(26,26,24,0.22);
  --accent: #1a6ef5;
  --accent-hover: #0f56d4;
  --accent-light: rgba(26,110,245,0.1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 100px;
  --nav-h: 62px;
  --max-w: 960px;
  --transition: 0.22s ease;
}

[data-theme="dark"] {
  --color-bg: #0f0f0e;
  --color-surface: #1a1a18;
  --color-text: #f0ede8;
  --color-muted: #9a9994;
  --color-hint: #5a5a56;
  --color-border: rgba(240,237,232,0.1);
  --color-border-hover: rgba(240,237,232,0.22);
  --accent-light: rgba(26,110,245,0.15);
}

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background var(--transition), color var(--transition);
}

a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; }

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 2.5rem);
}

/* --- NAV --- */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(250,250,248,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 0.5px solid var(--color-border);
  transition: background var(--transition);
}

[data-theme="dark"] nav {
  background: rgba(15,15,14,0.88);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 2.5rem);
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: -0.3px;
  cursor: pointer;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  margin-right: 0.5rem;
}

.nav-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  flex-shrink: 0;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex: 1;
}

.nav-link {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-muted);
  padding: 6px 13px;
  border-radius: var(--radius-pill);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover { color: var(--color-text); background: var(--color-surface); }
.nav-link.active { color: var(--color-text); font-weight: 500; }

.nav-link.nav-cta {
  color: var(--color-text);
  border: 0.5px solid var(--color-border-hover);
  margin-left: 0.25rem;
}

.nav-link.nav-cta:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.nav-controls { display: flex; align-items: center; gap: 8px; margin-left: auto; flex-shrink: 0; }

.lang-toggle, .theme-toggle {
  background: none;
  border: 0.5px solid var(--color-border-hover);
  color: var(--color-muted);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lang-toggle { font-size: 11px; font-weight: 500; letter-spacing: 0.5px; padding: 5px 10px; font-family: var(--font-body); }
.theme-toggle { width: 32px; height: 32px; }

.lang-toggle:hover, .theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
}

.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Pages --- */
.page { display: none; }
.page.active { display: block; animation: fadeUp 0.32s ease both; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

main { flex: 1; }

.eyebrow {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-hint);
  margin-bottom: 1.25rem;
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 11px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
  white-space: nowrap;
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  background: none;
  color: var(--color-text);
  border: 0.5px solid var(--color-border-hover);
  padding: 11px 24px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 400;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.btn-ghost:hover { background: var(--color-surface); border-color: var(--accent); color: var(--accent); }

/* --- Tags --- */
.tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-muted);
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  padding: 5px 13px;
  border-radius: var(--radius-pill);
}

/* --- HOME --- */
#page-home .container { padding-top: clamp(3rem, 8vh, 5rem); padding-bottom: 3rem; }

.home-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 3rem;
  align-items: start;
}

.hero { display: flex; flex-direction: column; gap: 1.5rem; padding-top: 1rem; }

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -1.5px;
  max-width: 600px;
}

.hero-title em { font-style: italic; color: var(--accent); }

.hero-sub {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 480px;
  line-height: 1.65;
  font-weight: 300;
}

.hero-cta { display: flex; gap: 10px; flex-wrap: wrap; }

.hero-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-top: 1.5rem;
  border-top: 0.5px solid var(--color-border);
}

/* Home newsletter block */
.home-newsletter {
  position: sticky;
  top: calc(var(--nav-h) + 1.5rem);
}

.home-nl-inner {
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  border-top: 3px solid var(--accent);
}

.home-nl-label {
  font-size: 10px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0;
}

.home-nl-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.3px;
  line-height: 1.2;
}

.home-nl-sub { font-size: 13px; color: var(--color-muted); font-weight: 300; line-height: 1.6; }

.nl-form { display: flex; flex-direction: column; gap: 8px; }

.nl-input {
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  border: 0.5px solid var(--color-border-hover);
  background: var(--color-bg);
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}

.nl-input:focus { border-color: var(--accent); }
.nl-input::placeholder { color: var(--color-hint); }

.nl-btn { width: 100%; justify-content: center; }

.nl-success {
  display: none;
  font-size: 13px;
  color: var(--accent);
  padding: 8px 0;
}

/* --- ABOUT --- */
#page-about .container { padding-top: clamp(3rem, 7vh, 5rem); padding-bottom: 3rem; }

.about-grid {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.about-photo-wrap {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 0.5px solid var(--color-border);
  overflow: hidden;
}

.about-photo-wrap img { width: 100%; height: 100%; object-fit: cover; }

.about-content { display: flex; flex-direction: column; gap: 1.25rem; padding-top: 0.5rem; }

.about-name {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.8px;
  line-height: 1.15;
}

.about-bio { font-size: 15px; color: var(--color-muted); line-height: 1.8; font-weight: 300; }
.about-bio strong { color: var(--color-text); font-weight: 500; }

.about-tags { display: flex; gap: 8px; flex-wrap: wrap; }

/* Social links */
.social-links { display: flex; gap: 10px; margin-top: 0.5rem; }

.social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 0.5px solid var(--color-border-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  transition: all var(--transition);
}

.social-btn:hover { color: #fff; background: var(--accent); border-color: var(--accent); }

/* Page newsletter block (about & projects) */
.page-newsletter-block {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 0.5px solid var(--color-border);
}

.pnl-inner {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--color-border);
  border-top: 3px solid var(--accent);
  padding: 2rem 2.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

.pnl-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  letter-spacing: -0.3px;
  line-height: 1.2;
  margin-top: 6px;
}

.pnl-sub { font-size: 14px; color: var(--color-muted); font-weight: 300; margin-top: 6px; }

.pnl-form { display: flex; gap: 10px; align-items: flex-start; flex-wrap: wrap; }
.pnl-form .nl-input { flex: 1; min-width: 180px; }

/* --- PROYECTOS --- */
#page-projects .container { padding-top: clamp(3rem, 7vh, 5rem); padding-bottom: 3rem; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.project-card {
  border-radius: var(--radius-md);
  border: 0.5px solid var(--color-border);
  background: var(--color-bg);
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.project-card:hover { border-color: var(--accent); transform: translateY(-3px); }

.project-img {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border-bottom: 0.5px solid var(--color-border);
}

.project-img img { width: 100%; height: 100%; object-fit: cover; }
.project-body { padding: 1.1rem 1.2rem 1.4rem; }
.project-cat { font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px; color: var(--color-hint); margin-bottom: 6px; }
.project-name { font-size: 15px; font-weight: 500; margin-bottom: 7px; line-height: 1.3; }
.project-desc { font-size: 13px; color: var(--color-muted); line-height: 1.6; font-weight: 300; }

.project-link {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  margin-top: 12px;
  border-bottom: 0.5px solid var(--accent);
  padding-bottom: 1px;
  transition: opacity var(--transition);
}

.project-link:hover { opacity: 0.7; }

/* --- NEWSLETTER PAGE --- */
#page-newsletter .container { padding-top: clamp(3rem, 7vh, 5rem); padding-bottom: 3rem; }

.newsletter-wrap { max-width: 560px; }

.newsletter-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.8px;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.newsletter-sub { font-size: 15px; color: var(--color-muted); font-weight: 300; line-height: 1.7; margin-bottom: 2rem; }

.newsletter-form { display: flex; gap: 10px; flex-wrap: wrap; }

.newsletter-input {
  flex: 1;
  min-width: 200px;
  padding: 11px 18px;
  border-radius: var(--radius-pill);
  border: 0.5px solid var(--color-border-hover);
  background: var(--color-bg);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-text);
  outline: none;
  transition: border-color var(--transition);
}

.newsletter-input:focus { border-color: var(--accent); }
.newsletter-input::placeholder { color: var(--color-hint); }

.success-msg {
  display: none;
  padding: 14px 18px;
  background: var(--accent-light);
  border-radius: var(--radius-md);
  border: 0.5px solid var(--accent);
  font-size: 14px;
  color: var(--accent);
  margin-top: 1rem;
}

.newsletter-note { font-size: 12px; color: var(--color-hint); margin-top: 1rem; }

.topic-list { margin-top: 2.5rem; border-top: 0.5px solid var(--color-border); }

.topic-row { display: flex; align-items: center; gap: 14px; padding: 14px 0; border-bottom: 0.5px solid var(--color-border); }

.topic-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

.topic-text { font-size: 14px; color: var(--color-muted); font-weight: 300; }
.topic-text strong { color: var(--color-text); font-weight: 500; }

/* --- FOOTER --- */
footer { border-top: 0.5px solid var(--color-border); padding: 1.5rem 0; margin-top: auto; }

.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

.footer-logo { font-family: var(--font-display); font-size: 16px; }

.footer-social { display: flex; gap: 16px; }

.footer-social a { color: var(--color-hint); transition: color var(--transition); display: flex; }
.footer-social a:hover { color: var(--accent); }

.footer-copy { font-size: 12px; color: var(--color-hint); }

/* --- RESPONSIVE --- */
@media (max-width: 780px) {
  .home-grid { grid-template-columns: 1fr; }
  .home-newsletter { position: static; }
  .pnl-inner { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .about-photo-wrap { max-width: 200px; aspect-ratio: 1/1; border-radius: 50%; }
}

@media (max-width: 620px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 0.5px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem;
    gap: 0.25rem;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-controls { margin-left: 0; }
  .nav-link { padding: 10px 14px; font-size: 15px; }
  .nav-link.nav-cta { margin-left: 0; margin-top: 0.5rem; }
}