/* ============================================================
   PORTFOLIO — Federico Iseas
   CSS Design System
   ============================================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200&display=swap');

/* ============================================================
   1. CSS CUSTOM PROPERTIES (Theme Tokens)
   ============================================================ */
:root {
  /* ---- Light mode (default) ---- */
  --bg-primary: #FAFAFA;
  --bg-secondary: #FFFFFF;
  --bg-navbar: rgba(250, 250, 250, 0.82);
  --color-primary: #1E3A8A;
  --color-primary-light: #2563EB;
  --color-accent: #059669;
  --color-accent-light: #10B981;
  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-tertiary: #6B7280;
  --border-color: #E5E7EB;
  --border-color-light: #F3F4F6;
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.08), 0 4px 10px rgba(0, 0, 0, 0.04);
  --navbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --tag-bg: #EFF6FF;
  --tag-text: #1E40AF;
  --tag-accent-bg: #ECFDF5;
  --tag-accent-text: #065F46;
  --badge-featured-bg: #ECFDF5;
  --badge-featured-text: #059669;
  --badge-featured-border: #A7F3D0;
  --timeline-line: #E5E7EB;
  --timeline-dot: #2563EB;
  --timeline-dot-border: #BFDBFE;
  --code-bg: #F3F4F6;
  --overlay-bg: rgba(0, 0, 0, 0.5);
  --btn-primary-bg: #1E3A8A;
  --btn-primary-hover: #1E40AF;
  --btn-secondary-bg: transparent;
  --btn-secondary-border: #D1D5DB;
  --btn-secondary-hover-bg: #F9FAFB;
  --focus-ring: rgba(37, 99, 235, 0.4);
  --scrollbar-track: #F3F4F6;
  --scrollbar-thumb: #D1D5DB;
}

[data-theme="dark"] {
  --bg-primary: #0B1120;
  --bg-secondary: #131C31;
  --bg-navbar: rgba(11, 17, 32, 0.82);
  --color-primary: #3B82F6;
  --color-primary-light: #60A5FA;
  --color-accent: #34D399;
  --color-accent-light: #6EE7B7;
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-tertiary: #64748B;
  --border-color: #1E293B;
  --border-color-light: #1E293B;
  --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15);
  --card-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.3), 0 4px 10px rgba(0, 0, 0, 0.2);
  --navbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.25);
  --tag-bg: rgba(59, 130, 246, 0.12);
  --tag-text: #93C5FD;
  --tag-accent-bg: rgba(52, 211, 153, 0.1);
  --tag-accent-text: #6EE7B7;
  --badge-featured-bg: rgba(52, 211, 153, 0.1);
  --badge-featured-text: #34D399;
  --badge-featured-border: rgba(52, 211, 153, 0.3);
  --timeline-line: #1E293B;
  --timeline-dot: #3B82F6;
  --timeline-dot-border: rgba(59, 130, 246, 0.3);
  --code-bg: #1E293B;
  --overlay-bg: rgba(0, 0, 0, 0.7);
  --btn-primary-bg: #2563EB;
  --btn-primary-hover: #3B82F6;
  --btn-secondary-bg: transparent;
  --btn-secondary-border: #334155;
  --btn-secondary-hover-bg: #1E293B;
  --focus-ring: rgba(59, 130, 246, 0.4);
  --scrollbar-track: #131C31;
  --scrollbar-thumb: #334155;
}

/* ============================================================
   2. RESET & BASE
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  font-size: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

::selection {
  background: var(--color-primary);
  color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

/* ============================================================
   3. TYPOGRAPHY
   ============================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
}

h3 {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

.mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ============================================================
   4. UTILITY CLASSES
   ============================================================ */
.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 60px 0;
}

.section__header {
  text-align: center;
  margin-bottom: 56px;
}

.section__title {
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section__title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-primary);
  margin: 12px auto 0;
  border-radius: 2px;
}

.section__subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   5. BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 4px;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn--primary {
  background: var(--btn-primary-bg);
  color: #fff;
}

.btn--primary:hover {
  background: var(--btn-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn--secondary {
  background: var(--btn-secondary-bg);
  color: var(--text-primary);
  border: 1.5px solid var(--btn-secondary-border);
}

.btn--secondary:hover {
  background: var(--btn-secondary-hover-bg);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.btn--small {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn .material-symbols-rounded {
  font-size: 20px;
}

/* ============================================================
   6. NAVBAR
   ============================================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-navbar);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.navbar--scrolled {
  border-bottom-color: var(--border-color);
  box-shadow: var(--navbar-shadow);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.navbar__logo {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.navbar__logo:hover {
  color: var(--color-primary);
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar__link {
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 4px;
  transition: color 0.2s ease, background 0.2s ease;
  position: relative;
}

.navbar__link:hover,
.navbar__link--active {
  color: var(--color-primary);
  background: var(--tag-bg);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar__icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 4px;
  color: var(--text-secondary);
  transition: color 0.2s ease, background 0.2s ease;
}

.navbar__icon-btn:hover {
  color: var(--color-primary);
  background: var(--tag-bg);
}

.navbar__icon-btn .material-symbols-rounded {
  font-size: 22px;
}

.navbar__lang-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 4px;
  color: var(--text-secondary);
  transition: color 0.2s ease, background 0.2s ease;
}

.navbar__lang-btn:hover {
  color: var(--color-primary);
  background: var(--tag-bg);
}

.navbar__cv-btn {
  margin-left: 8px;
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: 4px;
  transition: background 0.2s ease;
}

.navbar__hamburger:hover {
  background: var(--tag-bg);
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.navbar__hamburger--active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__hamburger--active span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger--active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  z-index: 999;
  padding: 24px;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.navbar__mobile-menu--open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.navbar__mobile-link {
  display: block;
  padding: 14px 16px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 4px;
  transition: color 0.2s ease, background 0.2s ease;
}

.navbar__mobile-link:hover {
  color: var(--color-primary);
  background: var(--tag-bg);
}

.navbar__mobile-actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

/* ============================================================
   7. HERO
   ============================================================ */
.hero {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  padding: 60px 0;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.hero__content {
  order: 2;
  text-align: center;
}

.hero__photo-wrapper {
  order: 1;
  display: flex;
  justify-content: center;
}

.hero__photo {
  width: 220px;
  height: 220px;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid var(--border-color);
  box-shadow: var(--card-shadow-hover);
}

.hero__name {
  font-size: clamp(2.2rem, 6vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subtitle {
  font-family: 'JetBrains Mono', monospace;
  font-size: clamp(0.85rem, 2vw, 1.05rem);
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.hero__description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 24px;
  line-height: 1.75;
}

/* Progress Bars */
.hero__progress-container {
  margin: 0 auto 28px;
  max-width: 540px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 640px) {
  .hero__progress-container {
    grid-template-columns: 1fr;
    gap: 12px;
  }
}

.hero__progress-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
  cursor: pointer;
  text-decoration: none !important;
  color: inherit;
  transition: opacity 0.2s ease;
}

.hero__progress-item:hover {
  opacity: 0.85;
}

.hero__progress-item:hover .hero__progress-title span:not(.material-symbols-rounded) {
  text-decoration: underline;
}

.hero__progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.hero__progress-title {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero__progress-title .material-symbols-rounded {
  font-size: 16px;
  color: var(--color-primary);
}

.hero__progress-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
}

.hero__progress-bar-bg {
  width: 100%;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.hero__progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: 2px;
  width: 0%;
  transition: width 1.5s cubic-bezier(0.1, 0.8, 0.25, 1);
}

/* Modifiers for intermediate title */
.hero__progress-item--inter .hero__progress-title .material-symbols-rounded {
  color: var(--color-accent);
}

.hero__progress-item--inter .hero__progress-val {
  color: var(--color-accent);
}

.hero__progress-item--inter .hero__progress-bar-fill {
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
}

.hero__buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero__socials {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.hero__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 4px;
  color: var(--text-secondary);
  border: 1.5px solid var(--border-color);
  transition: all 0.2s ease;
}

.hero__social-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--tag-bg);
}

.hero__social-link svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* ============================================================
   8. PROJECTS
   ============================================================ */
.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.project-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: var(--card-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

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

.project-card__image-wrapper {
  width: 100%;
  height: 180px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-color);
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.3s ease;
}

.project-card:hover .project-card__image {
  transform: scale(1.03);
}

.project-card__content-wrapper {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

/* Featured project (SignumID) */
.project-card--featured {
  border-color: var(--badge-featured-border);
  grid-column: 1 / -1;
}

.project-card--featured:hover {
  border-color: var(--color-accent);
}

.project-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--badge-featured-text);
  background: var(--badge-featured-bg);
  border: 1px solid var(--badge-featured-border);
  border-radius: 4px;
  margin-bottom: 16px;
}

.project-card__badge .material-symbols-rounded {
  font-size: 16px;
}

.project-card__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.project-card__title-link {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.project-card__title-link:hover {
  color: var(--color-primary-light);
}

.project-card__description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.project-card__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.project-card__tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 10px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 3px;
  letter-spacing: -0.01em;
}

.project-card__links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: color 0.2s ease;
}

.project-card__link:hover {
  color: var(--color-primary-light);
}

.project-card__link .material-symbols-rounded {
  font-size: 18px;
}

/* Accordion for featured project details */
.project-card__toggle-details {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  cursor: pointer;
  transition: color 0.2s ease;
}

.project-card__toggle-details:hover {
  color: var(--color-accent-light);
}

.project-card__toggle-details .material-symbols-rounded {
  font-size: 20px;
  transition: transform 0.3s ease;
}

.project-card__toggle-details--open .material-symbols-rounded {
  transform: rotate(180deg);
}

.project-card__details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease;
  opacity: 0;
}

.project-card__details--open {
  max-height: 800px;
  opacity: 1;
  margin-bottom: 20px;
}

.project-card__highlights {
  list-style: none;
  padding: 16px 0;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-card__highlight {
  display: flex;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.project-card__highlight::before {
  content: '▸';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ============================================================
   9. EXPERIENCE (Timeline)
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--timeline-line);
}

.timeline__item {
  position: relative;
  padding-bottom: 40px;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: -32px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--timeline-dot);
  border: 3px solid var(--timeline-dot-border);
  z-index: 1;
}

.timeline__item--current .timeline__dot {
  box-shadow: 0 0 0 4px var(--timeline-dot-border);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    box-shadow: 0 0 0 4px var(--timeline-dot-border);
  }

  50% {
    box-shadow: 0 0 0 8px transparent;
  }
}

.timeline__header {
  margin-bottom: 12px;
}

.timeline__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline__company {
  font-size: 0.95rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline__meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  font-family: 'JetBrains Mono', monospace;
}

.timeline__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.timeline__meta-item .material-symbols-rounded {
  font-size: 16px;
}

.timeline__bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.timeline__bullet {
  display: flex;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline__bullet::before {
  content: '›';
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
  line-height: 1.4;
}

.timeline__highlight {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  color: var(--color-accent);
  background: var(--tag-accent-bg);
  border-radius: 3px;
}

.timeline__highlight .material-symbols-rounded {
  font-size: 16px;
}

/* ============================================================
   10. SKILLS
   ============================================================ */
.skills__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.skills__category {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 28px;
  box-shadow: var(--card-shadow);
}

.skills__category-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.skills__category-title .material-symbols-rounded {
  font-size: 22px;
  color: var(--color-primary);
}

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

.skills__tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 16px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 4px;
  border: 1px solid transparent;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.skills__tag:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

/* ============================================================
   11. FORMATION (Education + Courses + Languages)
   ============================================================ */
.formation__grid {
  display: flex;
  flex-direction: column;
  gap: 48px;
  max-width: 800px;
  margin: 0 auto;
}

.formation__block-title {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border-color);
}

.formation__block-title .material-symbols-rounded {
  font-size: 24px;
  color: var(--color-primary);
}

/* ---- Education card (inside formation) ---- */
.education__card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.education__degree {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.education__school {
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 4px;
  font-size: 0.95rem;
}

.education__status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent);
}

.education__progress-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-tertiary);
  margin-top: 2px;
}

/* ---- Courses list (inside formation) ---- */
.courses__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.course-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 20px 24px;
  box-shadow: var(--card-shadow);
  display: flex;
  gap: 16px;
  align-items: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.course-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--card-shadow-hover);
}

.course-card__content {
  flex: 1;
}

.course-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.course-card__meta {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.course-card__provider {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.course-card__year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

.course-card__cert-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary);
  flex-shrink: 0;
}

.course-card__cert-link .material-symbols-rounded {
  font-size: 16px;
}

/* ---- Languages list (inside formation) ---- */
.languages__list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.lang-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 16px 20px;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 200px;
}

.lang-card__flag {
  font-size: 1.8rem;
  line-height: 1;
}

.lang-card__info {
  flex: 1;
}

.lang-card__name {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.lang-card__level {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.lang-card__level-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 3px;
}

/* ============================================================
   14. CONTACT / FOOTER
   ============================================================ */
.contact {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  max-width: 800px;
  margin: 0 auto;
}

.contact__info {
  text-align: center;
}

.contact__heading {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact__text {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 1rem;
}

.contact__cta {
  margin-bottom: 32px;
}

.contact__email-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  font-size: 1.1rem;
  border-radius: 6px;
}

.contact__links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: 4px;
  transition: all 0.2s ease;
}

.contact__link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--tag-bg);
}

.contact__link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.contact__link .material-symbols-rounded {
  font-size: 20px;
}

.contact__link--cv {
  border-color: var(--color-primary-light);
  color: var(--color-primary-light);
}

.contact__link--cv:hover {
  background: var(--btn-primary-hover);
  color: #fff;
  border-color: var(--btn-primary-hover);
}

.form__input,
.form__textarea {
  padding: 12px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1.5px solid var(--border-color);
  border-radius: 4px;
  transition: border-color 0.2s ease;
  outline: none;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__submit {
  align-self: flex-start;
}

/* Footer */
.footer {
  padding: 24px 0;
  text-align: center;
  border-top: 1px solid var(--border-color);
  background: var(--bg-secondary);
}

.footer__text {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  font-family: 'JetBrains Mono', monospace;
}

/* ============================================================
   15. EDUCATION PAGE (educacion.html)
   ============================================================ */
/* ============================================================
   15. EDUCATION PAGE (educacion.html)
   ============================================================ */
.edu-page__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 32px;
  font-weight: 600;
  color: var(--color-primary);
}

.edu-page__back .material-symbols-rounded {
  font-size: 20px;
}

/* Stats Progress Widget */
.edu-page__stats-container {
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  margin-bottom: 40px;
}

.edu-stats__wrapper-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .edu-stats__wrapper-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.edu-stats__block {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 24px;
  box-shadow: var(--card-shadow);
}

.edu-stats__block-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1.5px solid var(--border-color);
}

.edu-stats__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.edu-stats__text {
  font-size: 0.95rem;
  color: var(--text-primary);
}

.edu-stats__progress-bar {
  width: 100%;
  height: 10px;
  background: var(--bg-primary);
  border-radius: 5px;
  overflow: hidden;
  margin-bottom: 16px;
  border: 1.5px solid var(--border-color);
}

.edu-stats__progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
  border-radius: 5px;
  transition: width 0.5s ease-out;
}

.edu-stats__badges {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Semester Blocks (Always Open) */
.edu-semester-block {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin-bottom: 24px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.edu-semester-header {
  padding: 16px 24px;
  background-color: var(--border-color-light);
  border-bottom: 1px solid var(--border-color);
}

.edu-semester-title-group {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
}

.edu-semester-icon {
  color: var(--color-primary);
  font-size: 20px;
}

.edu-semester-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
}

.edu-semester-counter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

.edu-semester-body {
  padding: 24px;
}

/* Milestone separator (EFIP) */
.edu-page__milestone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 32px 0;
  padding: 12px 0;
}

.edu-page__milestone-line {
  flex: 1;
  height: 1.5px;
  background: repeating-linear-gradient(90deg, var(--border-color), var(--border-color) 4px, transparent 4px, transparent 8px);
}

.edu-page__milestone-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
}

/* Subjects list within semester block */
.edu-page__subjects {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Individual Subject Card Layout */
.edu-subject-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 16px 20px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.edu-subject-card:hover {
  transform: translateX(2px);
  border-color: var(--border-color);
}

.edu-subject-card__main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.edu-subject-card__title-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  flex-wrap: wrap;
  gap: 12px;
}

.edu-subject-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.edu-subject-card__badges {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

/* Badge styles */
.edu-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 3px;
  white-space: nowrap;
}

/* APPROVED status style */
.edu-subject-card--approved {
  border-left: 4px solid var(--color-accent);
  background-color: var(--tag-accent-bg);
}

.edu-badge--approved,
.edu-badge--approved-pill {
  background: var(--bg-secondary);
  border: 1.5px solid var(--badge-featured-border);
  color: var(--tag-accent-text);
}

.edu-badge--grade {
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
}

.edu-badge--type {
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--border-color);
}

/* IN PROGRESS status style */
.edu-subject-card--in_progress {
  border-left: 4px solid var(--color-primary);
}

.edu-badge--in_progress,
.edu-badge--progress-pill {
  background: var(--tag-bg);
  color: var(--tag-text);
}

/* PENDING status style */
.edu-subject-card--pending {
  border-left: 4px solid var(--text-tertiary);
  opacity: 0.75;
}

.edu-badge--pending,
.edu-badge--pending-pill {
  background: var(--code-bg);
  color: var(--text-secondary);
}

/* Summary styles */
.edu-subject-card__summary {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-color-light);
}

.edu-subject-card__summary .material-symbols-rounded {
  font-size: 16px;
  color: var(--text-tertiary);
  margin-top: 2px;
  flex-shrink: 0;
}

.edu-subject-card__summary-text {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================================
   16. SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 {
  transition-delay: 0.1s;
}

.reveal--delay-2 {
  transition-delay: 0.2s;
}

.reveal--delay-3 {
  transition-delay: 0.3s;
}

.reveal--delay-4 {
  transition-delay: 0.4s;
}

/* ============================================================
   17. RESPONSIVE
   ============================================================ */

/* Tablet (≥640px) */
@media (min-width: 640px) {
  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .project-card--featured {
    grid-column: 1 / -1;
  }

  .skills__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .edu-page__subjects {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop (≥1024px) */
@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr auto;
    gap: 64px;
    text-align: left;
  }

  .hero__content {
    order: 1;
    text-align: left;
  }

  .hero__photo-wrapper {
    order: 2;
  }

  .hero__photo {
    width: 280px;
    height: 280px;
  }

  .hero__description {
    margin-left: 0;
  }

  .hero__progress-container {
    margin-left: 0;
  }

  .hero__buttons {
    justify-content: flex-start;
  }

  .hero__socials {
    justify-content: flex-start;
  }

  .project-card--featured .project-card__image-wrapper {
    height: 240px;
  }

  .section {
    padding: 70px 0;
  }
}

/* Mobile (<768px) — Nav adaptation */
@media (max-width: 767px) {

  .navbar__nav,
  .navbar__cv-btn {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }
}

/* Large desktop (≥768px) — hide mobile menu toggle */
@media (min-width: 768px) {
  .navbar__mobile-menu {
    display: none !important;
  }
}