/* ============================================================
   SUMIT DABAS — PORTFOLIO STYLESHEET
   Modern dark-themed premium portfolio
   Design System: HSL-based palette, Inter typeface, fluid layout
   ============================================================ */

/* ── Google Fonts ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── Design Tokens ────────────────────────────────────────── */
:root {
  /* Brand palette */
  --clr-bg-primary:    hsl(222, 25%, 7%);
  --clr-bg-secondary:  hsl(222, 22%, 10%);
  --clr-bg-card:       hsl(222, 20%, 12%);
  --clr-bg-card-hover: hsl(222, 20%, 15%);
  --clr-border:        hsl(222, 15%, 18%);
  --clr-border-hover:  hsl(222, 15%, 28%);

  /* Accent — vivid electric blue */
  --clr-accent:        hsl(217, 91%, 60%);
  --clr-accent-glow:   hsla(217, 91%, 60%, .25);
  --clr-accent-soft:   hsla(217, 91%, 60%, .08);

  /* Secondary accent — warm amber */
  --clr-accent-2:      hsl(38, 92%, 55%);
  --clr-accent-2-glow: hsla(38, 92%, 55%, .20);

  /* Text */
  --clr-text-primary:   hsl(0, 0%, 95%);
  --clr-text-secondary: hsl(222, 10%, 62%);
  --clr-text-muted:     hsl(222, 10%, 42%);

  /* Gradients */
  --grad-hero:  linear-gradient(135deg, hsl(217,91%,60%) 0%, hsl(265,80%,60%) 50%, hsl(330,80%,60%) 100%);
  --grad-card:  linear-gradient(135deg, hsla(217,91%,60%,.12) 0%, hsla(265,80%,60%,.06) 100%);
  --grad-glow:  radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
                  hsla(217,91%,60%,.06), transparent 40%);

  /* Spacing scale */
  --sp-xs:  .25rem;
  --sp-sm:  .5rem;
  --sp-md:  1rem;
  --sp-lg:  1.5rem;
  --sp-xl:  2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 4rem;
  --sp-4xl: 6rem;

  /* Typography */
  --ff-sans:  'Inter', system-ui, -apple-system, sans-serif;
  --ff-mono:  'JetBrains Mono', 'Fira Code', monospace;
  --fs-xs:    .75rem;
  --fs-sm:    .875rem;
  --fs-base:  1rem;
  --fs-md:    1.125rem;
  --fs-lg:    1.25rem;
  --fs-xl:    1.5rem;
  --fs-2xl:   2rem;
  --fs-3xl:   2.5rem;
  --fs-4xl:   3.25rem;
  --fs-hero:  clamp(2.5rem, 6vw, 4.5rem);

  /* Radii */
  --radius-sm:  .375rem;
  --radius-md:  .625rem;
  --radius-lg:  1rem;
  --radius-xl:  1.25rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-card: 0 1px 3px hsla(0,0%,0%,.12), 0 4px 12px hsla(0,0%,0%,.08);
  --shadow-card-hover: 0 8px 30px hsla(0,0%,0%,.25);
  --shadow-glow: 0 0 40px var(--clr-accent-glow);

  /* Transitions */
  --ease-out: cubic-bezier(.22,1,.36,1);
  --dur-fast: 180ms;
  --dur-normal: 320ms;
  --dur-slow: 500ms;

  /* Layout */
  --container-max: 1100px;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--clr-border) transparent;
}

body {
  font-family: var(--ff-sans);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--clr-text-primary);
  background: var(--clr-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--clr-accent);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

a:hover { color: hsl(217, 91%, 72%); }

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

/* ── Selection ────────────────────────────────────────────── */
::selection {
  background: var(--clr-accent);
  color: #fff;
}

/* ── Utility ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--sp-lg);
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

/* ── Animated Background Orbs ─────────────────────────────── */
.bg-orbs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.bg-orbs .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: .18;
  animation: orbFloat 20s ease-in-out infinite alternate;
}

.bg-orbs .orb:nth-child(1) {
  width: 600px; height: 600px;
  background: var(--clr-accent);
  top: -10%; left: -10%;
  animation-duration: 25s;
}

.bg-orbs .orb:nth-child(2) {
  width: 500px; height: 500px;
  background: hsl(265, 80%, 60%);
  top: 40%; right: -8%;
  animation-duration: 30s;
  animation-delay: -5s;
}

.bg-orbs .orb:nth-child(3) {
  width: 400px; height: 400px;
  background: hsl(330, 80%, 60%);
  bottom: -5%; left: 30%;
  animation-duration: 22s;
  animation-delay: -10s;
}

@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(30px, -50px) scale(1.05); }
  66%  { transform: translate(-20px, 20px) scale(.95); }
  100% { transform: translate(10px, -30px) scale(1.02); }
}

/* ── Navigation ───────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  background: hsla(222, 25%, 7%, .72);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out);
}

.navbar.scrolled {
  background: hsla(222, 25%, 7%, .92);
  box-shadow: 0 4px 30px hsla(0,0%,0%,.3);
}

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

.nav-logo {
  font-size: var(--fs-lg);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--clr-text-primary);
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

.nav-logo .logo-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--clr-accent);
  box-shadow: 0 0 12px var(--clr-accent-glow);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .6; transform: scale(.85); }
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--sp-xs);
}

.nav-links a {
  display: inline-block;
  padding: var(--sp-sm) var(--sp-md);
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-text-primary);
  background: var(--clr-accent-soft);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-sm);
}

.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--clr-text-primary);
  border-radius: 2px;
  transition: transform var(--dur-normal) var(--ease-out),
              opacity var(--dur-fast);
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Hero Section ─────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
}

.hero-content {
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: var(--sp-xs) var(--sp-md);
  background: var(--clr-accent-soft);
  border: 1px solid hsla(217,91%,60%,.15);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: var(--sp-xl);
  animation: fadeInUp .8s var(--ease-out) both;
}

.hero-badge::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: pulse 2s ease-in-out infinite;
}

.hero h1 {
  font-size: var(--fs-hero);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.03em;
  margin-bottom: var(--sp-lg);
  animation: fadeInUp .8s var(--ease-out) .15s both;
}

.hero h1 .gradient-text {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: var(--fs-md);
  color: var(--clr-text-secondary);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: var(--sp-2xl);
  animation: fadeInUp .8s var(--ease-out) .3s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-md);
  animation: fadeInUp .8s var(--ease-out) .45s both;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-sm);
  padding: .8rem 1.6rem;
  font-family: var(--ff-sans);
  font-size: var(--fs-sm);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--dur-normal) var(--ease-out);
  text-decoration: none;
}

.btn-primary {
  background: var(--clr-accent);
  color: #fff;
  box-shadow: 0 4px 14px var(--clr-accent-glow);
}

.btn-primary:hover {
  background: hsl(217, 91%, 55%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--clr-accent-glow);
  color: #fff;
}

.btn-secondary {
  background: var(--clr-bg-card);
  color: var(--clr-text-primary);
  border: 1px solid var(--clr-border);
}

.btn-secondary:hover {
  background: var(--clr-bg-card-hover);
  border-color: var(--clr-border-hover);
  transform: translateY(-2px);
  color: var(--clr-text-primary);
}

.btn-icon {
  font-size: var(--fs-md);
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn:hover .btn-icon { transform: translateX(3px); }

/* ── Section Styling ──────────────────────────────────────── */
.section {
  padding: var(--sp-4xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--sp-3xl);
}

.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-sm);
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: 800;
  letter-spacing: -.02em;
  margin-bottom: var(--sp-md);
}

.section-subtitle {
  font-size: var(--fs-md);
  color: var(--clr-text-secondary);
  max-width: 520px;
  margin-inline: auto;
}

/* ── About / Bio Cards ────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--sp-xl);
}

.bio-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-2xl);
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-normal) var(--ease-out),
              border-color var(--dur-normal) var(--ease-out),
              box-shadow var(--dur-normal) var(--ease-out);
}

.bio-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-glow);
  opacity: 0;
  transition: opacity var(--dur-slow);
  pointer-events: none;
}

.bio-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.bio-card:hover::before { opacity: 1; }

.bio-card-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md);
  background: var(--clr-accent-soft);
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-lg);
}

.bio-card h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--sp-sm);
}

.bio-card p {
  color: var(--clr-text-secondary);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

.bio-card .meta {
  margin-top: var(--sp-md);
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-weight: 500;
}

/* ── Timeline (Experience & Education) ────────────────────── */
.timeline {
  position: relative;
  max-width: 700px;
  margin-inline: auto;
  padding-left: 36px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-accent), var(--clr-border));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-bottom: var(--sp-2xl);
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -41px; top: 6px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--clr-accent);
  border: 3px solid var(--clr-bg-primary);
  box-shadow: 0 0 0 3px var(--clr-accent-glow);
}

.timeline-item h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--sp-xs);
}

.timeline-item .org {
  font-size: var(--fs-sm);
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: var(--sp-xs);
}

.timeline-item .date {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-xs);
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-weight: 500;
  margin-bottom: var(--sp-sm);
}

.timeline-item p {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  line-height: 1.7;
}

/* ── Skills Matrix ────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: var(--sp-md);
}

.skill-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-lg) var(--sp-md);
  text-align: center;
  transition: all var(--dur-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-hero);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-normal) var(--ease-out);
}

.skill-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-glow);
}

.skill-card:hover::after { transform: scaleX(1); }

.skill-icon {
  font-size: 2rem;
  margin-bottom: var(--sp-sm);
  display: block;
}

.skill-card h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  margin-bottom: var(--sp-xs);
}

.skill-card .skill-level {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-weight: 500;
}

/* ── Projects ─────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--sp-xl);
}

.project-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--dur-normal) var(--ease-out);
  position: relative;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.project-card-visual {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  position: relative;
  overflow: hidden;
}

.project-card-visual.fly-fly {
  background: linear-gradient(135deg, hsl(200,80%,20%) 0%, hsl(240,60%,15%) 100%);
}

.project-card-visual.bublo-visual {
  background: linear-gradient(135deg, hsl(217,80%,22%) 0%, hsl(265,60%,18%) 100%);
}

.project-card-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, var(--clr-bg-card));
}

.project-card-body {
  padding: var(--sp-xl);
}

.project-card-body h3 {
  font-size: var(--fs-lg);
  font-weight: 700;
  margin-bottom: var(--sp-sm);
}

.project-card-body p {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--sp-lg);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm);
}

.project-tag {
  padding: var(--sp-xs) var(--sp-sm);
  font-size: var(--fs-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  background: var(--clr-accent-soft);
  color: var(--clr-accent);
  border: 1px solid hsla(217,91%,60%,.12);
}

/* ── Contact Section ──────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--sp-lg);
  max-width: 800px;
  margin-inline: auto;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-xl) var(--sp-2xl);
  text-decoration: none;
  color: var(--clr-text-primary);
  transition: all var(--dur-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-glow);
  opacity: 0;
  transition: opacity var(--dur-slow);
  pointer-events: none;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-card-hover);
  color: var(--clr-text-primary);
}

.contact-card:hover::before { opacity: 1; }

.contact-card-icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  color: #fff;
}

.contact-card-icon.linkedin-icon {
  background: linear-gradient(135deg, hsl(210,80%,45%), hsl(210,80%,55%));
}

.contact-card-icon.email-icon {
  background: linear-gradient(135deg, hsl(0,75%,50%), hsl(20,90%,55%));
}

.contact-card-icon.telegram-icon {
  background: linear-gradient(135deg, hsl(200,80%,48%), hsl(210,85%,58%));
}

.contact-card-body {
  flex: 1;
  min-width: 0;
}

.contact-card-body h3 {
  font-size: var(--fs-base);
  font-weight: 700;
  margin-bottom: 2px;
}

.contact-card-body p {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-arrow {
  font-size: var(--fs-xl);
  color: var(--clr-text-muted);
  transition: transform var(--dur-normal) var(--ease-out),
              color var(--dur-normal) var(--ease-out);
  flex-shrink: 0;
}

.contact-card:hover .contact-arrow {
  transform: translateX(4px);
  color: var(--clr-accent);
}

/* ── CTA Section ──────────────────────────────────────────── */
.cta-section {
  text-align: center;
  padding: var(--sp-4xl) 0;
}

.cta-box {
  background: var(--grad-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--sp-3xl) var(--sp-xl);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, var(--clr-accent-glow) 0%, transparent 50%);
  animation: rotateSlow 15s linear infinite;
  opacity: .4;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.cta-box h2 {
  font-size: var(--fs-2xl);
  font-weight: 800;
  margin-bottom: var(--sp-md);
  position: relative;
}

.cta-box p {
  font-size: var(--fs-md);
  color: var(--clr-text-secondary);
  margin-bottom: var(--sp-2xl);
  max-width: 480px;
  margin-inline: auto;
  position: relative;
}

.cta-box .btn { position: relative; }

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--clr-border);
  padding: var(--sp-2xl) 0;
  text-align: center;
}

.footer p {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--sp-lg);
  margin-bottom: var(--sp-md);
}

.footer-links a {
  font-size: var(--fs-sm);
  color: var(--clr-text-secondary);
  font-weight: 500;
}

.footer-links a:hover { color: var(--clr-accent); }

/* ── Animations ───────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Scroll-reveal utility */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

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

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
    --fs-hero: 2.2rem;
    --fs-3xl: 1.8rem;
    --fs-2xl: 1.5rem;
    --sp-4xl: 3.5rem;
  }

  /* Mobile nav */
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0; bottom: 0;
    flex-direction: column;
    background: hsla(222,25%,7%,.96);
    backdrop-filter: blur(20px);
    padding: var(--sp-xl);
    gap: var(--sp-xs);
    transform: translateX(100%);
    transition: transform var(--dur-normal) var(--ease-out);
  }

  .nav-links.open { transform: translateX(0); }

  .nav-links a {
    font-size: var(--fs-md);
    padding: var(--sp-md);
    border-radius: var(--radius-md);
  }

  .about-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }

  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }
  .container { padding-inline: var(--sp-md); }
  .contact-card { padding: var(--sp-lg); }
}