/* ==========================================================
   Sebastian Orjuela — Portfolio Styles
   Dark theme · Blue-purple accent · Modern & Minimal
   ========================================================== */

/* ─── Reset & Base ──────────────────────────────────────── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Palette */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #16161e;
  --bg-card-hover: #1c1c28;
  --border: #23232f;
  --border-hover: #3a3a4e;
  --text-primary: #e4e4e9;
  --text-secondary: #94949e;
  --text-muted: #6b6b78;
  --accent: #6c63ff;
  --accent-light: #8b83ff;
  --accent-glow: rgba(108, 99, 255, 0.15);
  --accent-secondary: #00b4d8;
  --success: #4ade80;
  --error: #f87171;

  /* Typography */
  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "Fira Code", monospace;

  /* Sizing */
  --container: 1100px;
  --radius: 10px;
  --radius-sm: 6px;

  /* Transitions */
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-light);
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

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

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

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

/* ─── Container ────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Navbar ───────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}

/* ─── Navbar Brand (logo + lang toggle) ────────────────── */
.navbar__brand {
  display: flex;
  align-items: center;
  gap: 20px;
  /* separación entre SOG y el botón */
}

/* ─── Language Toggle ───────────────────────────────────── */
.lang-toggle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  cursor: pointer;
  letter-spacing: 0.5px;
  transition: background 0.3s var(--ease),
    color 0.3s var(--ease),
    transform 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
  line-height: 1;
  flex-shrink: 0;
  /* nunca se encoge en responsive */
}

.lang-toggle:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--accent-glow);
}

.lang-toggle:active {
  transform: translateY(0);
}

.navbar.scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 10, 15, 0.95);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.navbar__logo {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

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

.logo-bracket {
  color: var(--accent);
}

.navbar__menu {
  display: flex;
  gap: 32px;
}

.navbar__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
  transition: color 0.3s var(--ease);
}

.navbar__link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  transition: width 0.3s var(--ease);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--accent-light);
}

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

/* Hamburger */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

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

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

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

/* ─── Hero ─────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: 120px 0 80px;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, var(--accent-glow), transparent),
    var(--bg-primary);
}

.hero__inner {
  max-width: 700px;
}

.hero__greeting {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  margin-bottom: 12px;
}

.hero__name {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__title {
  font-size: clamp(1.2rem, 3vw, 1.75rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.hero__description {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 40px;
}

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

/* Scroll indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
}

.mouse {
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
  opacity: 0.5;
}

.mouse__wheel {
  width: 3px;
  height: 8px;
  background: var(--text-muted);
  border-radius: 2px;
  animation: scroll-wheel 1.8s ease-in-out infinite;
}

@keyframes scroll-wheel {
  0% {
    opacity: 1;
    transform: translateY(0);
  }

  100% {
    opacity: 0;
    transform: translateY(10px);
  }
}

/* ─── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--ease);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn--primary:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 30px rgba(108, 99, 255, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--accent-light);
  border: 1.5px solid var(--accent);
}

.btn--outline:hover {
  background: var(--accent-glow);
  color: var(--accent-light);
  transform: translateY(-2px);
}

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

.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
  pointer-events: none;
  /* evita hover effects */
}

/* ─── Sections (shared) ────────────────────────────────── */
.section {
  padding: 100px 0;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 60px;
  position: relative;
}

.section__title::after {
  content: "";
  display: block;
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 12px auto 0;
}

/* ─── About ────────────────────────────────────────────── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

/* Code window */
.code-window {
  background: #0d0d14;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.code-window__header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 18px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot--red {
  background: #ff5f57;
}

.code-dot--yellow {
  background: #febc2e;
}

.code-dot--green {
  background: #28c840;
}

.code-window__filename {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.code-window__body {
  margin: 0;
  padding: 20px 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  overflow-x: auto;
  color: var(--text-secondary);
}

.code-window__body code {
  display: block;
}

/* Syntax tokens */
.cw-comment {
  color: #636e7b;
  font-style: italic;
}

.cw-keyword {
  color: #c792ea;
}

.cw-class {
  color: #82aaff;
}

.cw-string {
  color: #c3e88d;
}

/* Right column */
.about__right {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.about__text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about__card-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.about__card-item i {
  font-size: 1.1rem;
  color: var(--accent);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.about__card-item div {
  display: flex;
  flex-direction: column;
}

.about__card-item strong {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.about__card-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ─── Skills ───────────────────────────────────────────── */
.skills {
  background: var(--bg-secondary);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.skills__group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.skills__group:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.skills__group-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
}

.skills__group-title i {
  color: var(--accent);
  font-size: 1rem;
}

.skills__list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skills__list li {
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  font-family: var(--font-mono);
  transition: all 0.3s var(--ease);
}

.skills__list li:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: var(--accent-glow);
}

/* ─── Experience / Timeline ─────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 36px;
}

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

.timeline__item {
  position: relative;
  padding-bottom: 0;
}

.timeline__marker {
  position: absolute;
  left: -36px;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-primary);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline__content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s var(--ease);
}

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

.timeline__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
}

.timeline__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 6px;
  color: var(--text-primary);
}

.timeline__company {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
  display: block;
  margin-bottom: 12px;
}

.timeline__content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}


/* ─── Project status badge ──────────────────────────────── */
.project-card__status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 10px;
  width: fit-content;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Complete — green */
.project-card__status--complete {
  background: rgba(74, 222, 128, 0.1);
  color: #4ade80;
  border: 1px solid rgba(74, 222, 128, 0.25);
}

.project-card__status--complete .status-dot {
  background: #4ade80;
  box-shadow: 0 0 6px rgba(74, 222, 128, 0.6);
}

/* In Progress — orange */
.project-card__status--progress {
  background: rgba(251, 146, 60, 0.1);
  color: #fb923c;
  border: 1px solid rgba(251, 146, 60, 0.25);
}

.project-card__status--progress .status-dot {
  background: #fb923c;
  box-shadow: 0 0 6px rgba(251, 146, 60, 0.6);
  animation: pulse-dot 1.8s ease-in-out infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(0.75);
  }
}

/* ─── Projects ─────────────────────────────────────────── */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), 0 0 20px var(--accent-glow);
}

.project-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.project-card__header i {
  font-size: 2rem;
  color: var(--accent);
}

.project-card__links {
  display: flex;
  gap: 14px;
}

.project-card__links a {
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}

.project-card__links a:hover {
  color: var(--accent-light);
  transform: translateY(-2px);
}

.project-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
  transition: color 0.3s var(--ease);
}

.project-card:hover .project-card__title {
  color: var(--accent-light);
}

.project-card__description {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex: 1;
  margin-bottom: 20px;
  line-height: 1.6;
}

.project-card__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.project-card__tags li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-secondary);
  background: rgba(0, 180, 216, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
}

/* ─── Contact ──────────────────────────────────────────── */
.contact {
  background: var(--bg-secondary);
  text-align: center;
}

.contact__subtitle {
  color: var(--text-muted);
  max-width: 480px;
  margin: -40px auto 40px;
  font-size: 1rem;
}

.contact__form {
  max-width: 560px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.1);
}

.form-error {
  font-size: 0.75rem;
  color: var(--error);
  min-height: 18px;
  margin-top: 4px;
}

.form-status {
  grid-column: 1 / -1;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 12px;
  border-radius: var(--radius-sm);
  margin-top: 4px;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(74, 222, 128, 0.08);
  color: var(--success);
  border: 1px solid rgba(74, 222, 128, 0.2);
}

.form-status.error {
  display: block;
  background: rgba(248, 113, 113, 0.08);
  color: var(--error);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

#contact-form .btn--full {
  grid-column: 1 / -1;
}

/* ─── Footer ───────────────────────────────────────────── */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.footer__socials {
  display: flex;
  gap: 20px;
}

.footer__socials a {
  font-size: 1.15rem;
  color: var(--text-muted);
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}

.footer__socials a:hover {
  color: var(--accent-light);
  transform: translateY(-2px);
}

/* ─── Animations (fade-up on scroll) ───────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

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

/* stagger children */
.fade-up:nth-child(2) {
  transition-delay: 0.08s;
}

.fade-up:nth-child(3) {
  transition-delay: 0.16s;
}

.fade-up:nth-child(4) {
  transition-delay: 0.24s;
}

.fade-up:nth-child(5) {
  transition-delay: 0.32s;
}


/* ─── Education ─────────────────────────────────────────── */
.education {
  background: var(--bg-secondary);
}

.education__block {
  margin-bottom: 60px;
}

.education__block:last-child {
  margin-bottom: 0;
}

.education__block-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.education__block-title i {
  color: var(--accent);
  font-size: 1.05rem;
}

/* Degree cards — horizontal list */
.education__cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.education__card {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 28px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.education__card:hover {
  border-color: var(--accent);
  transform: translateX(6px);
}

.education__card-year {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
  min-width: 110px;
}

.education__card-body h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.education__institution {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Cert cards — grid */
.education__certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.education__cert-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s;
}

.education__cert-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25), 0 0 14px var(--accent-glow);
}

.education__cert-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-glow);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  font-size: 1.2rem;
  color: var(--accent);
}

.education__cert-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.education__cert-body h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

.education__cert-issuer {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.education__cert-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
}

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
  .navbar__toggle {
    display: flex;
  }

  .navbar__menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.35s var(--ease), opacity 0.35s;
    pointer-events: none;
  }

  .navbar__menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .navbar__link {
    padding: 12px 0;
    font-size: 1rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  /* Hide code window on mobile — text content takes priority */
  .about__code {
    display: none;
  }

  .about__right {
    gap: 20px;
  }

  .education__card {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .education__card-year {
    min-width: unset;
  }

  .education__certs-grid {
    grid-template-columns: 1fr;
  }

  .skills__grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }

  .projects__grid {
    grid-template-columns: 1fr;
  }

  .contact__form {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .hero__scroll-indicator {
    display: none;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 64px 0;
  }

  .about__right {
    gap: 16px;
  }

  .about__card {
    padding: 16px;
  }

  .about__card-item {
    gap: 12px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

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