/* ---------------------------------
   Base + theme
--------------------------------- */

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

:root {
  --bg-main: #050816;
  --bg-elevated: rgba(15, 23, 42, 0.96);
  --bg-soft: rgba(15, 23, 42, 0.85);

  --surface: rgba(15, 23, 42, 0.96);
  --surface-soft: rgba(15, 23, 42, 0.9);

  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --text-soft: #6b7280;

  --accent: #0ea5e9;
  --accent-soft: rgba(56, 189, 248, 0.18);
  --accent-strong: #16a34a;

  --border-subtle: rgba(148, 163, 184, 0.3);

  --radius-lg: 1.6rem;
  --radius-md: 1rem;
  --radius-pill: 999px;

  --shadow-soft: 0 22px 60px rgba(15, 23, 42, 0.9);

  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Inter",
    "Segoe UI", sans-serif;

  --section-padding: clamp(4rem, 8vw, 6rem);
  --container-max: 1120px;

  --transition-fast: 160ms ease-out;
  --transition-med: 220ms ease;
}

html[data-theme="light"] {
  --bg-main: #f5f7ff;
  --bg-elevated: rgba(255, 255, 255, 0.96);
  --bg-soft: rgba(255, 255, 255, 0.9);

  --surface: #ffffff;
  --surface-soft: #f8fafc;

  --text-main: #0f172a;
  --text-muted: #4b5563;
  --text-soft: #6b7280;

  --accent: #0ea5e9;
  --accent-soft: rgba(14, 165, 233, 0.12);
  --accent-strong: #16a34a;

  --border-subtle: rgba(148, 163, 184, 0.35);

  --shadow-soft: 0 18px 50px rgba(15, 23, 42, 0.18);
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #08152f 0, #050816 55%, #020617 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

/* Light mode background fix */
html[data-theme="light"] body {
  background: radial-gradient(circle at top, #e0f2ff 0, #f5f7ff 55%, #e5edf8 100%);
}

/* Background particles canvas */

#bg-particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: screen;
}

/* Layout helpers */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.section {
  position: relative;
  z-index: 1;
}

.section--padded {
  padding-block: var(--section-padding);
}

.section-header {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-kicker {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-soft);
  margin: 0 0 0.6rem;
}

.section-title {
  font-size: clamp(1.9rem, 3vw, 2.4rem);
  line-height: 1.1;
  margin: 0 0 0.8rem;
}

.section-subtitle {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* Typography */

.hero-title {
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  line-height: 1.05;
  margin: 0 0 0.75rem;
}

.hero-subtitle {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  font-weight: 500;
}

.hero-body {
  margin: 0 0 1.5rem;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--text-muted);
}

.about-paragraph {
  margin: 0 0 1rem;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* Tags, pills, badges */

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.45);
  font-size: 0.75rem;
  color: var(--text-soft);
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(10px);
}

html[data-theme="light"] .tag {
  background: rgba(255, 255, 255, 0.9);
}

.tag--solid {
  background: var(--accent-soft);
  border-color: transparent;
  color: var(--accent);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  color: var(--text-soft);
  background: rgba(15, 23, 42, 0.9);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast), transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

html[data-theme="light"] .pill {
  background: rgba(255, 255, 255, 0.9);
}

.pill--outline {
  background: transparent;
}

.pill--soft {
  background: var(--accent-soft);
  border-color: transparent;
  color: var(--accent);
}

.projects-filter--active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.4);
}

/* Badges */

.badge {
  position: absolute;
  inset-block-start: 0.75rem;
  inset-inline-end: 0.75rem;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 500;
}

.badge--soon {
  background: rgba(24, 181, 58, 0.16);
  color: var(--accent-strong);
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.3rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast), border-color var(--transition-fast),
    color var(--transition-fast);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(160deg, var(--accent), var(--accent-strong));
  color: #0b1120;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.35);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(15, 23, 42, 0.45);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.5);
  color: var(--text-main);
}

.btn--ghost:hover {
  background: rgba(15, 23, 42, 0.75);
  border-color: rgba(148, 163, 184, 0.8);
}

html[data-theme="light"] .btn--ghost:hover {
  background: rgba(15, 23, 42, 0.06);
}

.btn--outline {
  background: transparent;
  border-color: rgba(148, 163, 184, 0.65);
  color: var(--text-main);
}

.btn--outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--link {
  padding-inline: 0;
  padding-block: 0;
  border-radius: 0;
  border: none;
  background: none;
  color: var(--accent);
  box-shadow: none;
}

.btn--link::after {
  content: "↗";
  font-size: 0.8em;
  margin-left: 0.15rem;
}

.btn--link:hover {
  text-decoration: underline;
}

.btn--sm {
  padding-block: 0.35rem;
  padding-inline: 0.95rem;
  font-size: 0.82rem;
}

.btn--disabled {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-soft);
  border-color: rgba(148, 163, 184, 0.3);
  cursor: default;
}

/* Header & nav */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: linear-gradient(
    to bottom,
    rgba(5, 8, 22, 0.95),
    rgba(5, 8, 22, 0.9),
    transparent
  );
  border-bottom: 1px solid rgba(15, 23, 42, 0.8);
}

html[data-theme="light"] .site-header {
  background: linear-gradient(
    to bottom,
    rgba(248, 250, 252, 0.96),
    rgba(248, 250, 252, 0.9),
    transparent
  );
  border-bottom-color: rgba(148, 163, 184, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.85rem;
  gap: 1.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(148, 163, 184, 0.10); /* círculo muy suave */
  box-shadow: none; /* sin glow exagerado */
}
.brand-icon i {
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1;
}
/* Ajuste para dark mode */
[data-theme="dark"] .brand-icon {
  background: rgba(15, 23, 42, 0.8);
}

.brand-icon .lucide {
  font-size: 18px;
  line-height: 1;
  color: var(--accent-strong);
}

.brand-text {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-main);
}

.site-nav {
  display: flex;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.3rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-link {
  position: relative;
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--text-muted);
  padding-block: 0.1rem;
}

.nav-link::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  inset-block-end: -0.3rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transform-origin: center;
  transform: scaleX(0);
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

/* Header actions */

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.lang-switcher {
  display: inline-flex;
  padding: 0.15rem;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.45);
}

html[data-theme="light"] .lang-switcher {
  background: rgba(255, 255, 255, 0.9);
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-soft);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lang-btn--active {
  background: var(--accent-soft);
  color: var(--accent);
}

.icon-button {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(15, 23, 42, 0.85);
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast),
    transform var(--transition-fast);
}

.icon-button:hover {
  background: rgba(15, 23, 42, 1);
  border-color: rgba(148, 163, 184, 0.9);
  transform: translateY(-1px);
}
.icon-button-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
  transform: translateY(-1.5px); /* o -0.5px según lo veas */
}
html[data-theme="light"] .icon-button {
  background: rgba(255, 255, 255, 0.9);
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(232, 235, 242, 0.9);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--text-main);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Hero */

.hero {
  padding-block: clamp(4.5rem, 8vw, 6rem);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.1fr);
  gap: clamp(2.5rem, 6vw, 3.5rem);
  align-items: center;
}

.hero-kicker {
  margin: 0 0 0.6rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.2rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Hero cards */

.hero-showcase {
  position: relative;
  min-height: 260px;
}

.hero-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  padding: 1.2rem 1.3rem;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.hero-card--main {
  max-width: 360px;
  margin-left: auto;
  padding-bottom: 2.4rem;
}

.hero-card-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 1rem;
}

.hero-card-title {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
}

.hero-card-subtitle {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-soft);
}

.hero-avatar-wrapper {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
}

.hero-avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent-soft);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.75);
  animation: hero-avatar-float 6s ease-in-out infinite;
}

@keyframes hero-avatar-float {
  0% {
    transform: translateY(0);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.75);
  }
  50% {
    transform: translateY(-6px);
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.85);
  }
  100% {
    transform: translateY(0);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.75);
  }
}

.hero-meta {
  margin: 0;
  display: grid;
  gap: 0.45rem;
  font-size: 0.78rem;
}

.hero-meta-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.hero-meta-row dt {
  color: var(--text-soft);
}

.hero-meta-row dd {
  margin: 0;
  font-weight: 500;
}

.hero-floating-card {
  position: absolute;
  max-width: 220px;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  border: 1px solid rgba(56, 189, 248, 0.35);
  font-size: 0.8rem;
  color: var(--text-muted);
  box-shadow: var(--shadow-soft);
}

.hero-floating-card--top {
  inset-block-start: -3.75rem;
  inset-inline-start: 60%;
}

.hero-floating-card--bottom {
  inset-block-end: 8.5rem;
  inset-inline-end: 60%;
}

/* Cards */

.card {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  /*box-shadow: var(--shadow-soft);*/
  display: flex;
  flex-direction: column;
  min-height: 100%;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    border-color var(--transition-fast);
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 2px 5px rgba(15, 23, 42, 0.3);
}

.card-media {
  position: relative;
}
.card-media-actions {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 0.5rem;
  z-index: 2;

  opacity: 0;
  transform: translateY(-6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

/* Aparece al hover (desktop) */
.project-card:hover .card-media-actions {
  opacity: 1;
  transform: translateY(0);
}
.card-media img {
  width: 100%;
  display: block;
  object-fit: cover;
}

.card-media--product img {
  max-height: 220px;
  object-fit: contain;
  margin-inline: auto;
  background: radial-gradient(circle at top, rgba(148, 163, 184, 0.1) 0, transparent 55%);
}

.card-body {
  padding: 1.2rem 1.3rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  flex: 1 1 auto;
}

.card-title {
  margin: 0;
  font-size: 1.05rem;
}

.card-text {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);

}


.card-meta-list {
  list-style: none;
  padding: 0;
  margin: 0.2rem 0 0.8rem;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.card-meta-list li + li {
  margin-top: 0.2rem;
}

.card-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}
/* Tags de tecnologías dentro de las cards */

.card-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.2rem;
}

.pill--xs {
  padding: 0.18rem 0.65rem;
  font-size: 0.72rem;
}

.card-tech-tag {
  background: var(--accent-soft);
  border-color: transparent;
  color: var(--accent);
}

/* Ajuste de la lista de notas para que respire un poco menos */
.card-meta-list {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0.6rem;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.card-meta-list li + li {
  margin-top: 0.15rem;
}
/* Projects */

.projects-controls {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.projects-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.projects-scroller {
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-bottom: 2rem;
  scroll-snap-type: x mandatory;

}

.projects-scroller::-webkit-scrollbar {
  height: 6px;
}

.projects-scroller::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.4);
  border-radius: 999px;
}

.projects-row {
  display: flex;
  gap: 1.6rem;
  padding-bottom: 0.3rem;
  justify-content: flex-start;
}

.project-card {
  flex: 0 0 min(340px, 85vw); 
  max-width: min(340px, 85vw);
  scroll-snap-align: start;
}

/* Resources */

.resources-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 340px));
  justify-content: center;
  gap: 1.5rem;
  margin-inline: auto;
}
.resource-card {
  flex: 0 0 min(340px, 85vw); 
  max-width: min(340px, 85vw);
  scroll-snap-align: start;
}
/* Section footers */

.section-footer {
  display: flex;
  justify-content: center;
}

/* About */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.about-sidebar {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.5rem;
}

.about-list-title {
  margin: 0 0 0.7rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.about-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* dos columnas en desktop para que la columna derecha no se haga tan larga */
@media (min-width: 961px) {
  .about-list {
    columns: 2;
    column-gap: 1.6rem;
    max-width: 420px;
  }
}

.about-list li {
  break-inside: avoid;
  margin-bottom: 0.35rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* Contact */

.contact-inner {
  display: flex;
  justify-content: center;
}

.contact-text {
  max-width: 640px;
  text-align: center;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.contact-note {
  margin-top: 1.3rem;
  font-size: 0.85rem;
  color: var(--text-soft);
}

/* Footer */

.site-footer {
  padding-block: 1.5rem;
  border-top: 1px solid rgba(15, 23, 42, 0.8);
  background: radial-gradient(circle at bottom, #020617 0, #020617 60%, #000 100%);
}

html[data-theme="light"] .site-footer {
  border-top-color: rgba(148, 163, 184, 0.4);
  background: #f8fafc;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--text-soft);
}

/* Scroll reveal */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 420ms ease-out, transform 420ms ease-out;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-showcase {
    order: -1;
  }

  .about-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .header-inner {
    gap: 1rem;
  }

  .site-nav {
    position: absolute;
    inset-inline: 0;
    inset-block-start: 100%;
    transform: translateY(-4px);
    padding-inline: 1.5rem;
    padding-bottom: 0.9rem;
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.6rem 1rem;
    border-radius: var(--radius-lg);
    background: var(--bg-soft);
    border: 1px solid var(--border-subtle);
  }

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

  .projects-row {
    padding-inline-end: 1rem;
  }
}

@media (max-width: 720px) {
  .header-actions {
    gap: 0.6rem;
  }

  .lang-switcher {
    display: inline-flex;
  }
  .brand-text {
    display: none;
  }
  .contact-actions {
    justify-content: stretch;
  }

  .contact-actions .btn {
    flex: 1 1 auto;
  }
}
@media (max-width: 960px) {
  .hero-showcase {
    display: none;
  }
}

/* About – portrait PNG */

.about-photo {
  align-self: flex-end;
}

.about-photo-inner {
  position: relative;
  width: min(280px, 60vw);
  max-width: 320px;
}

/* Respetamos la silueta del PNG y le damos un drop-shadow moderno */
.about-photo-inner img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 22px 40px rgba(15, 23, 42, 0.7));
}

/* En mobile centramos la foto bajo los textos */
@media (max-width: 960px) {
  .about-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .about-photo {
    align-self: center;
  }

  .about-sidebar {
    align-items: center;
    text-align: center;
  }

  .about-list {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .about-photo-inner {
    width: min(240px, 70vw);
  }
}