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

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f5f7;
  --color-surface: #e8ecef;
  --color-border: #d2d2d7;
  --color-text: #1d1d1f;
  --color-text-muted: #636368;
  --color-accent: #0077B6;
  --color-accent-hover: #005F8A;
  --color-heading: #1d1d1f;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --max-width: 1100px;
  --transition: 0.3s ease;
}

html.dark {
  --color-bg: #111113;
  --color-bg-alt: #1a1a1e;
  --color-surface: #2a2a2e;
  --color-border: #3a3a3e;
  --color-text: #e4e4e7;
  --color-text-muted: #9a9a9f;
  --color-accent: #38b6ff;
  --color-accent-hover: #6dcbff;
  --color-heading: #f0f0f2;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  color-scheme: light;
}

html.dark {
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3 {
  font-family: var(--font-serif);
}

h1 {
  font-size: clamp(1.8rem, 1.2rem + 2vw, 2.8rem);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(1.5rem, 1.1rem + 1.2vw, 2rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.3;
}

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

/* ===== LAYOUT ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
}

/* ===== DARK MODE OVERRIDES ===== */
html.dark .nav {
  background: rgba(17, 17, 19, 0.85);
}

html.dark .hero {
  background-color: var(--color-bg);
}

html.dark #hero-canvas {
  background: var(--color-bg);
}

@media (pointer: coarse) {
  html.dark .hero {
    background-image: url('/img/neural-bg-dark.svg');
  }
}

html.dark .hero-gradient-text {
  background: radial-gradient(ellipse at 50% 50%, #5cc8f5 0%, #00B4D8 40%, #0077B6 75%);
  -webkit-background-clip: text;
  background-clip: text;
}

html.dark .hero-sub {
  color: #c8c8cc;
}

html.dark .project-feature:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

html.dark .contact-link {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

html.dark .contact-link:hover {
  box-shadow: 0 2px 8px rgba(56, 182, 255, 0.15);
}

html.dark .project-stat {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

html.dark .press-link {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

html.dark .press-link:hover {
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.3);
}

html.dark .nav-dropdown-menu {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

html.dark .nav-dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.06);
}

html.dark .nav-dropdown-menu a.active {
  background: rgba(255, 255, 255, 0.06);
}

html.dark .lang-selector__dropdown {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

html.dark .video-play-btn {
  background: rgba(255, 255, 255, 0.15);
}

html.dark .video-play-btn:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Skip navigation (accessibility) */
.skip-nav {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 0 0 6px 6px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 200;
  transition: top 0.2s ease;
}

.skip-nav:focus {
  top: 0;
}

/* Dark mode toggle button */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  margin-right: 0.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: color var(--transition);
  -webkit-tap-highlight-color: transparent;
}

.theme-toggle:hover {
  color: var(--color-heading);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun { display: none; }
html.dark .theme-toggle .icon-moon { display: none; }
html.dark .theme-toggle .icon-sun { display: block; }

/* ===== NAVIGATION ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--color-border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-heading);
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links > li {
  display: flex;
  align-items: center;
}

.nav-links > li > a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 400;
  transition: color var(--transition);
  position: relative;
}

.nav-links > li > a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width 0.3s ease, left 0.3s ease;
}

.nav-links > li > a:hover::after {
  width: 100%;
  left: 0;
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
  color: var(--color-heading);
}

.nav-dropdown-menu a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 400;
  transition: color var(--transition);
}

.nav-dropdown-menu a:hover {
  color: var(--color-heading);
}

.nav-dropdown-menu a.active {
  background: rgba(0, 0, 0, 0.04);
  color: var(--color-heading);
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  cursor: pointer;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 400;
  transition: color var(--transition);
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  position: relative;
}

.nav-dropdown-toggle::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width 0.3s ease, left 0.3s ease;
}

.nav-dropdown:hover .nav-dropdown-toggle::after {
  width: 100%;
  left: 0;
}

.nav-dropdown-toggle:hover {
  color: var(--color-heading);
}

.nav-dropdown-toggle svg {
  width: 8px;
  height: 8px;
  stroke-width: 2;
  transition: transform var(--transition);
}

.nav-dropdown:hover .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.75rem);
  left: 50%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 0.5rem;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: all 0.2s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
  display: block;
  padding: 0.6rem 1rem;
  border-radius: 6px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  transition: all 0.15s ease;
}

.nav-dropdown-menu a:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--color-heading);
}

/* Mobile menu */
.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  -webkit-tap-highlight-color: transparent;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: all var(--transition);
  border-radius: 2px;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Language selector */
.lang-selector {
  position: relative;
  margin-left: 0.5rem;
}

.lang-selector__btn {
  display: flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: 1.5px solid var(--color-border);
  border-radius: 20px;
  padding: 8px 12px;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-muted);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: all var(--transition);
}

.lang-selector__btn:hover {
  border-color: var(--color-accent);
  color: var(--color-heading);
}

.lang-selector__btn svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition);
}

.lang-selector.active .lang-selector__btn svg {
  transform: rotate(180deg);
}

.lang-selector__dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  min-width: 130px;
  overflow: hidden;
  z-index: 120;
}

.lang-selector.active .lang-selector__dropdown {
  display: block;
}

.lang-selector__link {
  display: block;
  padding: 8px 14px;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--color-text-muted);
  transition: background var(--transition);
}

.lang-selector__link:hover {
  background: var(--color-bg-alt);
  color: var(--color-heading);
}

.lang-selector__link--active {
  font-weight: 600;
  color: var(--color-heading);
  background: var(--color-bg-alt);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg);
}

#hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  background: var(--color-bg);
}

@media (pointer: coarse) {
  .hero {
    background: var(--color-bg) url('/img/neural-bg.svg') center / cover no-repeat;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
  }
  #hero-canvas {
    display: none;
  }
}

.hero-claim {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 3rem;
}

.hero h1 {
  font-size: clamp(3.5rem, 3rem + 6vw, 9rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 2.5rem;
  color: var(--color-heading);
  font-weight: 400;
}


.hero-gradient-text {
  background: radial-gradient(ellipse at 50% 50%, #0096D6 0%, #0077B6 40%, #023E8A 75%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  padding: 0 0.05em;
}


.hero-sub {
  font-size: clamp(1.1rem, 1rem + 0.5vw, 1.4rem);
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--color-accent);
  color: #ffffff;
  padding: 0.85rem 1.8rem;
  min-width: 160px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
}

.hero-cta:hover {
  background: var(--color-accent-hover);
  color: #ffffff;
  transform: translateY(-1px);
}

.hero-cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--color-bg);
  color: var(--color-text);
  padding: 0.85rem 1.8rem;
  min-width: 160px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.hero-cta-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px);
}

.scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  transition: opacity 0.5s ease;
  cursor: pointer;
  color: inherit;
}

.scroll-hint span {
  display: block;
  width: 16px;
  height: 16px;
  border-right: 2.5px solid var(--color-text);
  border-bottom: 2.5px solid var(--color-text);
  transform: rotate(45deg);
  position: relative;
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { opacity: 0.5; top: 0; }
  50% { opacity: 1; top: 10px; }
}

/* ===== PROJECT FEATURES (index) ===== */
.project-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 5rem;
  text-decoration: none;
  color: inherit;
  padding: 2rem;
  border-radius: 16px;
  border: 1px solid transparent;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.4s cubic-bezier(0.22, 1, 0.36, 1),
              border-color 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.project-feature:hover {
  color: inherit;
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
  border-color: var(--color-border);
}

.project-feature--reverse .project-feature-img {
  order: 2;
}

.project-feature--reverse .project-feature-text {
  order: 1;
}

.project-feature-img {
  border-radius: 14px;
  overflow: hidden;
}

.project-feature-img img,
.project-feature-img video {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 14px;
  transition: transform var(--transition);
}

.project-feature:hover .project-feature-img img,
.project-feature:hover .project-feature-img video {
  transform: scale(1.02);
}

.project-feature-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: block;
}

.project-feature-text h3 {
  color: var(--color-heading);
  font-size: 1.6rem;
  margin-bottom: 0.75rem;
}

.project-feature-text p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.project-card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 0.5rem;
  color: var(--color-accent);
}

.project-card-link svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition);
}

.project-feature:hover .project-card-link svg {
  transform: translateX(4px);
}

/* ===== ABOUT SECTION ===== */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}

.about-photo img {
  width: 100%;
  height: auto;
  border-radius: 14px;
  object-fit: cover;
}

.about-text h2 {
  color: var(--color-heading);
  margin-bottom: 1.5rem;
}

.about-text p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
  line-height: 1.8;
}

.about-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-accent);
}

.about-linkedin:hover {
  color: var(--color-accent-hover);
}

.section-title {
  color: var(--color-heading);
  margin-bottom: 1rem;
}

/* ===== ALTERNATING SECTION BACKGROUNDS ===== */
#sobre-mi,
#about {
  background-color: var(--color-bg-alt);
}


/* ===== CONTACT ===== */
.contact-section {
  text-align: center;
  padding: 6rem 0;
  background-color: var(--color-bg-alt);
}

.contact-section h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
  color: var(--color-heading);
}

.contact-section p {
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  min-width: 220px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 0.9rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  transition: all var(--transition);
}

.contact-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(0, 119, 182, 0.15);
  transform: translateY(-1px);
}

.contact-link--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.contact-link--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #ffffff;
}

.contact-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

#email-text {
  font-size: 0.85rem;
  letter-spacing: -0.01em;
}

/* ===== PROJECT NAV ===== */
.project-next {
  margin-top: 2.5rem;
}

.project-next a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--color-accent);
  border-radius: 8px;
  transition: all var(--transition);
}

.project-next a:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 1rem 0;
  text-align: center;
}

.footer p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ===== PROJECT DETAIL PAGES ===== */
.project-hero {
  background-color: var(--color-bg-alt);
  padding: 7rem 0 2rem;
}

/* ===== PROJECT HERO IMAGE ===== */
.project-hero-img,
.project-hero-video {
  max-width: 700px;
  width: 100%;
  height: auto;
  border-radius: 14px;
  margin: 2rem 0 0.5rem;
}

.video-player {
  position: relative;
  display: inline-block;
  max-width: 700px;
  width: 100%;
  margin: 2rem 0 0.5rem;
  cursor: pointer;
}

.video-player .project-hero-video {
  margin: 0;
  display: block;
}

.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: none;
  border-radius: 50%;
  width: 72px;
  height: 72px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.25s, background 0.25s;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.video-play-btn svg {
  width: 28px;
  height: 28px;
  margin-left: 3px;
}

.video-play-btn:hover {
  background: rgba(0, 0, 0, 0.65);
  transform: translate(-50%, -50%) scale(1.08);
}

.video-player.is-playing .video-play-btn {
  opacity: 0;
  pointer-events: none;
}

.img-caption {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-bottom: 2rem;
}

.project-hero h1 {
  color: var(--color-heading);
  margin-bottom: 0.5rem;
  max-width: 700px;
}

.project-hero .hero-label {
  display: block;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  font-weight: 600;
}

.project-hero p {
  font-size: 1.15rem;
  max-width: 600px;
}

.project-content {
  background-color: var(--color-bg);
  padding: 3.5rem 0 3rem;
  position: relative;
}

.project-content h2 {
  color: var(--color-heading);
  margin-bottom: 1rem;
  margin-top: 3rem;
}

.project-content h2:first-of-type {
  margin-top: 0;
}

.project-content h3 {
  color: var(--color-heading);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
  margin-top: 2rem;
}

.project-content p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
  max-width: 700px;
}

.project-content ul {
  list-style: none;
  margin-bottom: 1.5rem;
  max-width: 700px;
}

.project-content ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.6rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.project-content ul li strong {
  color: var(--color-heading);
  font-weight: 600;
}

.project-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-border);
}

.project-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 1rem 0 1.5rem;
  max-width: 700px;
}

.project-stat {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.project-stat-value {
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-heading);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.project-stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ===== PRESS SECTION ===== */
.project-press {
  background-color: var(--color-bg);
  padding: 3rem 0;
}

.press-section-title {
  margin-bottom: 1rem;
}

.press-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 700px;
}

.press-link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
  transition: all var(--transition);
}

.press-link:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-alt);
  color: inherit;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.06);
  transform: translateY(-1px);
}

.press-link-source {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-weight: 600;
}

.press-link-title {
  font-size: 0.95rem;
  color: var(--color-text);
}

.press-link:hover .press-link-title {
  color: var(--color-heading);
}

/* ===== FOCUS STYLES ===== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-dropdown:focus-within .nav-dropdown-toggle svg {
  transform: rotate(180deg);
}

/* ===== ANIMATIONS ===== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Stagger fade-in for project cards */
.fade-in:nth-child(2) { transition-delay: 0.1s; }
.fade-in:nth-child(3) { transition-delay: 0.2s; }

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }

  .hero h1 {
    color: var(--color-heading);
  }

  .hero-gradient-text {
    background: none;
    -webkit-text-fill-color: var(--color-accent);
  }

}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  body.nav-open {
    overflow: hidden;
  }  .desktop-br {
    display: none;
  }

  .hero {
    min-height: 100vh;
  }

  .project-feature {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .project-feature--reverse .project-feature-img,
  .project-feature--reverse .project-feature-text {
    order: unset;
  }

  .about-split {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

}

@media (max-width: 640px) {
  .hero-sub {
    max-width: none;
  }

  section {
    padding: 3.5rem 0;
  }

  .container {
    padding: 0 1.25rem;
  }

  /* Mobile nav layout */
  .nav-inner {
    position: relative;
  }

  .nav-links {
    display: flex;
    position: fixed;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 2rem;
    gap: 0;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  }

  .nav-links.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-hamburger {
    display: block;
  }

  /* Disable underline pseudo-elements on mobile */
  .nav-links > li > a::after,
  .nav-dropdown-toggle::after {
    display: none;
  }

  /* Mobile nav link styling */
  .nav-links > li > a {
    display: block;
    padding: 0.6rem 0;
    font-size: 0.95rem;
  }

  /* Flat mobile dropdown: hide label, show items inline */
  .nav-dropdown-toggle {
    display: none;
  }

  .nav-dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border: none;
    padding: 0;
    min-width: auto;
    box-shadow: none;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .nav-dropdown:hover .nav-dropdown-menu,
  .nav-dropdown:focus-within .nav-dropdown-menu {
    transform: none;
  }

  .nav-dropdown-menu a {
    padding: 0.6rem 0;
    border-radius: 0;
    font-size: 0.95rem;
  }

  .nav-dropdown-menu a:hover {
    background: transparent;
  }

  /* Push theme toggle + lang selector to right, next to hamburger */
  .theme-toggle {
    margin-left: auto;
    margin-right: 0.75rem;
  }

  .lang-selector {
    margin-left: 0;
    margin-right: 0.75rem;
  }

  .project-stats {
    grid-template-columns: 1fr 1fr;
  }

  .contact-links {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-link {
    justify-content: center;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-cta,
  .hero-cta-secondary {
    justify-content: center;
    width: 100%;
  }

  .project-feature-text h3 {
    font-size: 1.3rem;
  }

  .hero {
    min-height: 100svh;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 2rem + 5vw, 5rem);
  }

  .project-hero {
    padding: 6.5rem 0 1.5rem;
  }
}