/* =============================================================
   rootXdeb — portfolio stylesheet
   Theme: terminal / network-ops console
   ============================================================= */

:root {
  /* --- Color tokens --- */
  --bg-void:        #05080c;
  --bg-panel:       #0b1119;
  --bg-panel-alt:   #0e1621;
  --line:           rgba(120, 170, 160, 0.16);
  --line-strong:    rgba(120, 170, 160, 0.32);

  --text-primary:   #d8e6e0;
  --text-muted:     #7d94a0;
  --text-dim:       #4c5e68;

  --phosphor:       #3ef29c;   /* primary accent — terminal green */
  --phosphor-dim:   #279a68;
  --amber:          #f2b93e;   /* warning / secondary accent */
  --cyan:           #4fd8e0;   /* data / link accent */
  --red-alert:      #f2543e;

  /* --- Type --- */
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-sans: 'Space Grotesk', system-ui, sans-serif;

  /* --- Layout --- */
  --maxw: 1160px;
  --radius: 6px;
  --radius-lg: 10px;
}

/* ============ RESET ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p, figure { margin: 0; }
button, input, textarea { font-family: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

::selection { background: var(--phosphor); color: #04140c; }

:focus-visible {
  outline: 2px solid var(--phosphor);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ============ BACKGROUND TEXTURE ============ */
body {
  background-image:
    radial-gradient(ellipse 900px 500px at 15% -5%, rgba(62, 242, 156, 0.08), transparent 60%),
    radial-gradient(ellipse 700px 500px at 90% 10%, rgba(79, 216, 224, 0.06), transparent 55%);
  background-attachment: fixed;
}

.crt-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.018) 0px,
    rgba(255, 255, 255, 0.018) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
  opacity: 0.5;
}

/* ============ UTILITIES ============ */
.accent { color: var(--phosphor); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--primary {
  background: var(--phosphor);
  color: #04140c;
  box-shadow: 0 0 0 0 rgba(62, 242, 156, 0.5);
}
.btn--primary:hover { box-shadow: 0 6px 24px -6px rgba(62, 242, 156, 0.55); }
.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--line-strong);
}
.btn--ghost:hover { border-color: var(--phosphor); color: var(--phosphor); }
.btn--wide { width: 100%; justify-content: center; }

.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 8px;
}
.dot--online {
  background: var(--phosphor);
  box-shadow: 0 0 0 3px rgba(62, 242, 156, 0.18);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 8, 12, 0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  margin-right: auto;
}
.nav__avatar {
  border-radius: 50%;
  border: 1.5px solid var(--phosphor-dim);
  object-fit: cover;
}
.nav__prompt { color: var(--phosphor); }
.nav__tilde { color: var(--text-muted); }

.nav__links {
  display: flex;
  gap: 26px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.nav__links a { position: relative; padding: 4px 0; transition: color 0.15s ease; }
.nav__links a::before { content: '/'; margin-right: 4px; color: var(--text-dim); }
.nav__links a:hover, .nav__links a.active { color: var(--phosphor); }

.nav__cta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--phosphor);
  border: 1px solid var(--phosphor-dim);
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease;
}
.nav__cta:hover { background: var(--phosphor); color: #04140c; }

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav__toggle span {
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO ============ */
.hero {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 90px 24px 70px;
  overflow: hidden;
}
.hero__grid {
  position: absolute;
  inset: -10% -5%;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 20%, black 20%, transparent 75%);
  opacity: 0.5;
  z-index: -1;
}
.hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 56px;
  align-items: start;
}
.hero__content { max-width: 720px; min-width: 0; }

/* --- ID card (profile) --- */
.id-card {
  position: sticky;
  top: 100px;
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 26px 22px 24px;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.75);
}
.id-card__glow {
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(62, 242, 156, 0.22), transparent 70%);
  pointer-events: none;
}
.id-card__top {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.id-card__status {
  display: flex;
  align-items: center;
  color: var(--phosphor);
}

.id-card__photo-wrap {
  position: relative;
  width: 132px;
  height: 132px;
  margin: 0 auto 18px;
}
.id-card__photo {
  width: 100%;
  height: 100%;
  border-radius: 14px;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
  border: 1px solid var(--line-strong);
}
.id-card__corner {
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--phosphor);
}
.id-card__corner--tl { top: -6px; left: -6px; border-right: none; border-bottom: none; }
.id-card__corner--tr { top: -6px; right: -6px; border-left: none; border-bottom: none; }
.id-card__corner--bl { bottom: -6px; left: -6px; border-right: none; border-top: none; }
.id-card__corner--br { bottom: -6px; right: -6px; border-left: none; border-top: none; }

.id-card__name {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.id-card__role {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.id-card__meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 16px 0;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  margin-bottom: 20px;
}
.id-card__meta li { display: flex; justify-content: space-between; gap: 10px; }
.id-card__meta li span:first-child { color: var(--text-dim); }
.id-card__meta li span:last-child { color: var(--text-primary); text-align: right; }

.id-card__links {
  display: flex;
  justify-content: center;
  gap: 14px;
}
.id-card__links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  color: var(--text-muted);
  transition: color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}
.id-card__links a:hover {
  color: var(--phosphor);
  border-color: var(--phosphor-dim);
  transform: translateY(-2px);
}

.hero__tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--phosphor);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.hero__title {
  font-family: var(--font-mono);
  font-weight: 800;
  line-height: 1.05;
  margin-bottom: 28px;
}
.hero__title-line {
  display: block;
  font-size: clamp(2.4rem, 6vw, 4rem);
  color: var(--text-primary);
}
.hero__title-handle {
  display: block;
  font-size: clamp(1.1rem, 2.6vw, 1.4rem);
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 10px;
}

/* Terminal window */
.terminal {
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px -25px rgba(0, 0, 0, 0.7);
  margin-bottom: 30px;
  overflow: hidden;
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-panel-alt);
  border-bottom: 1px solid var(--line);
}
.terminal__dots { display: flex; gap: 7px; }
.terminal__dots span {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--text-dim);
}
.terminal__dots span:nth-child(1) { background: #f2543e; }
.terminal__dots span:nth-child(2) { background: #f2b93e; }
.terminal__dots span:nth-child(3) { background: #3ef29c; }
.terminal__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin: 0 auto;
}
.terminal__body {
  padding: 20px 18px 22px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  min-height: 96px;
}
.terminal__line { color: var(--text-primary); word-break: break-word; }
.prompt { color: var(--phosphor); }
.colon { color: var(--text-dim); }
.path { color: var(--cyan); }
.dollar { color: var(--text-dim); margin-right: 2px; }
.cursor {
  display: inline-block;
  color: var(--phosphor);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.terminal__output {
  margin-top: 10px;
  color: var(--text-muted);
  white-space: pre-wrap;
}
.terminal__output .ok { color: var(--phosphor); }
.terminal__output .warn { color: var(--amber); }

.hero__desc {
  color: var(--text-muted);
  font-size: 1.02rem;
  max-width: 600px;
  margin-bottom: 32px;
}
.hero__desc strong { color: var(--text-primary); font-weight: 600; }

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  border-top: 1px solid var(--line);
  padding-top: 28px;
}
.stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--phosphor);
}
.stat__label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============ SECTION SHELL ============ */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 90px 24px;
  border-top: 1px solid var(--line);
}
.section__head { margin-bottom: 44px; }
.section__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--phosphor-dim);
  margin-bottom: 10px;
}
.section__eyebrow::before { content: '// '; color: var(--text-dim); }
.section__title {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3.4vw, 2.2rem);
  font-weight: 700;
  color: var(--text-primary);
}

/* ============ ABOUT ============ */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 56px;
  align-items: start;
}
.about__text p {
  color: var(--text-muted);
  margin-bottom: 18px;
  max-width: 58ch;
}
.about__text strong { color: var(--text-primary); font-weight: 600; }

.about__facts {
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.88rem;
}
.about__facts li {
  display: flex;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line);
}
.fact__key { color: var(--text-dim); width: 90px; flex-shrink: 0; }
.fact__val { color: var(--text-primary); display: flex; align-items: center; }

.scan-card {
  background: var(--bg-panel);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 22px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.scan-card__row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 9px 0;
  color: var(--text-dim);
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--line);
}
.scan-card__row--data {
  color: var(--text-primary);
  text-transform: none;
  font-size: 0.85rem;
}
.scan-card__row .ok { color: var(--phosphor); }
.scan-card__row .filtered { color: var(--amber); }
.scan-card__footer {
  margin-top: 14px;
  color: var(--text-dim);
  font-size: 0.75rem;
}

/* ============ EDUCATION ============ */
.edu-card {
  display: flex;
  align-items: flex-start;
  gap: 22px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.edu-card:hover { border-color: var(--phosphor-dim); transform: translateY(-3px); }
.edu-card__icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(62, 242, 156, 0.08);
  border: 1px solid rgba(62, 242, 156, 0.28);
  color: var(--phosphor);
}
.edu-card__body { flex: 1; min-width: 0; }
.edu-card__degree {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}
.edu-card__school {
  color: var(--cyan);
  font-size: 0.92rem;
  margin-bottom: 16px;
}
.edu-card__tags { display: flex; flex-wrap: wrap; gap: 8px; }
.edu-card__tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  border: 1px solid var(--line-strong);
  padding: 5px 10px;
  border-radius: 4px;
}
.edu-card__status {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--phosphor);
  white-space: nowrap;
}

/* ============ SKILLS ============ */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.skill-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 22px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.skill-card:hover {
  border-color: var(--phosphor-dim);
  transform: translateY(-4px);
}
.skill-card h3 {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.skill-card__desc {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 18px;
}
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  border: 1px solid rgba(79, 216, 224, 0.28);
  background: rgba(79, 216, 224, 0.06);
  padding: 5px 10px;
  border-radius: 4px;
}

/* ============ PROJECTS ============ */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.project-card {
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.project-card:hover {
  border-color: var(--phosphor-dim);
  box-shadow: 0 18px 40px -20px rgba(62, 242, 156, 0.25);
  transform: translateY(-4px);
}
.project-card__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.project-card__icon { font-size: 1.4rem; }
.project-card__lang {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.project-card__title {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.project-card__desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex-grow: 1;
  margin-bottom: 20px;
}
.project-card__link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--phosphor);
  align-self: flex-start;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease;
}
.project-card__link:hover { border-color: var(--phosphor); }

/* ============ EXPERIENCE / TIMELINE ============ */
.timeline {
  position: relative;
  padding-left: 30px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--line-strong);
}
.timeline__item {
  position: relative;
  padding-bottom: 40px;
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__marker {
  position: absolute;
  left: -30px;
  top: 4px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg-void);
  border: 2px solid var(--phosphor);
}
.timeline__content h3 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.timeline__meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--phosphor-dim);
  margin-bottom: 10px;
}
.timeline__content p:last-child {
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 60ch;
}

/* ============ CONTACT ============ */
.contact__box {
  max-width: 640px;
  margin: 0 auto;
  text-align: left;
}
.contact__desc {
  color: var(--text-muted);
  margin: 16px 0 34px;
  max-width: 52ch;
}
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px;
}
.form__row { display: flex; flex-direction: column; gap: 8px; }
.form__row label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form__row input, .form__row textarea {
  background: var(--bg-void);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 0.92rem;
  resize: vertical;
  transition: border-color 0.15s ease;
}
.form__row input:focus, .form__row textarea:focus {
  border-color: var(--phosphor);
  outline: none;
}
.form__row input::placeholder, .form__row textarea::placeholder { color: var(--text-dim); }

.form__status {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--phosphor);
  min-height: 1.2em;
  margin: 0;
}
.form__status.is-error { color: var(--red-alert); }

.contact__socials {
  display: flex;
  gap: 16px;
  margin-top: 26px;
  flex-wrap: wrap;
}
.social-link {
  flex: 1;
  min-width: 200px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 18px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.social-link:hover { border-color: var(--cyan); transform: translateY(-2px); }
.social-link__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.social-link__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--cyan);
}

/* ============ FOOTER ============ */
.footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 30px 24px 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  flex-wrap: wrap;
  gap: 10px;
}
.footer__top { color: var(--text-muted); transition: color 0.15s ease; }
.footer__top:hover { color: var(--phosphor); }

/* ============ SCROLL REVEAL (JS-toggled) ============ */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1000px) {
  .hero__layout { grid-template-columns: 1fr; }
  .id-card {
    position: static;
    max-width: 340px;
    margin: 0 auto;
  }
}

@media (max-width: 900px) {
  .about__grid { grid-template-columns: 1fr; }
  .skills__grid { grid-template-columns: repeat(2, 1fr); }
  .projects__grid { grid-template-columns: 1fr; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); row-gap: 24px; }
  .edu-card { flex-wrap: wrap; }
  .edu-card__status { margin-left: 74px; }
}

@media (max-width: 720px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }

  .nav__links.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--line);
    padding: 18px 24px;
    gap: 16px;
    z-index: 50;
  }

  .section { padding: 64px 20px; }
  .hero { padding: 64px 20px 50px; }
  .skills__grid { grid-template-columns: 1fr; }
  .edu-card { flex-direction: column; align-items: flex-start; gap: 14px; }
  .edu-card__status { margin-left: 0; }
}

@media (max-width: 420px) {
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { justify-content: center; }
  .hero__stats { grid-template-columns: 1fr 1fr; }
}