/* ═══════════════════════════════════════════════════════
   DESIGN SYSTEM — lukke.dev Personal Landing
═══════════════════════════════════════════════════════ */
:root, [data-theme="dark"] {
  --brand: #0EA5E9;
  --brand-glow: rgba(14, 165, 233, 0.3);
  --brand-light: rgba(14, 165, 233, 0.15);
  --bg-deep: #030712;
  --bg-surface: #0a0f1e;
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-card-hover: rgba(20, 30, 55, 0.8);
  --border: rgba(56, 189, 248, 0.08);
  --border-hover: rgba(56, 189, 248, 0.2);
  --text: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --success: #22c55e;
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-bg: rgba(3, 7, 18, 0.85);
  --nav-bg-scroll: rgba(3, 7, 18, 0.96);
  --scroll-anim-duration: 0.7s;
}

[data-theme="light"] {
  --bg-deep: #f8fafc;
  --bg-surface: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-hover: rgba(241, 245, 249, 0.95);
  --border: rgba(14, 165, 233, 0.12);
  --border-hover: rgba(14, 165, 233, 0.3);
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --nav-bg: rgba(248, 250, 252, 0.85);
  --nav-bg-scroll: rgba(248, 250, 252, 0.96);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

/* Mesh Background */
body.bg-mesh::before, body.bg-mesh::after {
  content: none;
}
body.bg-mesh {
  background: 
    radial-gradient(at 0% 0%, var(--brand-light) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(167, 139, 250, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(236, 72, 153, 0.15) 0px, transparent 50%),
    radial-gradient(at 0% 100%, var(--brand-light) 0px, transparent 50%),
    var(--bg-deep);
  background-size: 200% 200%;
  animation: meshFlow 15s ease infinite;
}
@keyframes meshFlow {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Particles Background */
.particles-bg {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 1s ease;
}
body.bg-particles .particles-bg {
  opacity: 1;
}

/* ═══════ NAVBAR ═══════ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem; height: 64px;
  background: var(--nav-bg);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled { background: var(--nav-bg-scroll); box-shadow: 0 4px 30px rgba(0,0,0,0.15); }
.navbar__brand { display: flex; align-items: center; gap: 0.625rem; }
.navbar__logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--brand), #6366f1);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.75rem; color: #fff;
  overflow: hidden; flex-shrink: 0;
}
.navbar__logo--has-photo {
  background: none; border: 1.5px solid var(--border-hover);
  border-radius: 50%;
}
.navbar__logo img {
  width: 100%; height: 100%; object-fit: cover;
  border-radius: 50%;
}
.navbar__name { font-weight: 700; font-size: 0.9375rem; color: var(--text); }
.navbar__right { display: flex; align-items: center; gap: 0.5rem; }
.navbar__links { display: flex; gap: 0.25rem; }
.theme-toggle {
  width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition); flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-light); }
.theme-toggle i { width: 18px; height: 18px; }
.navbar__links a {
  color: var(--text-muted); text-decoration: none; font-size: 0.8125rem;
  font-weight: 500; padding: 0.375rem 0.75rem; border-radius: 8px;
  transition: var(--transition);
}
.navbar__links a:hover, .navbar__links a.active {
  color: var(--brand); background: var(--brand-light);
}
.navbar__toggle {
  display: none; background: none; border: none; color: var(--text-muted);
  cursor: pointer; padding: 0.5rem;
}

/* Mobile nav */
@media (max-width: 768px) {
  .navbar__links {
    position: fixed; top: 64px; left: 0; right: 0;
    flex-direction: column; padding: 1rem;
    background: var(--nav-bg-scroll); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-100%); opacity: 0;
    transition: var(--transition); pointer-events: none;
  }
  .navbar__links.open { transform: translateY(0); opacity: 1; pointer-events: all; }
  .navbar__links a { padding: 0.75rem 1rem; font-size: 0.9375rem; }
  .navbar__toggle { display: block; }
}

/* ═══════ HERO ═══════ */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse at center top, rgba(14,165,233,0.08) 0%, transparent 60%),
              var(--bg-deep);
}
.hero__particles { position: absolute; inset: 0; pointer-events: none; }
.hero__particle {
  position: absolute; border-radius: 50%;
  background: var(--brand); opacity: 0.15;
  animation: float 8s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.15; }
  50% { transform: translateY(-30px) scale(1.2); opacity: 0.3; }
}
.hero__content {
  text-align: center; position: relative; z-index: 2;
  padding: 0 1.5rem; max-width: 700px;
}
.hero__status {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.375rem 1rem; border-radius: 100px;
  background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.25);
  font-size: 0.75rem; font-weight: 600; color: var(--success);
  margin-bottom: 1.5rem; animation: fadeInDown 0.8s ease;
}
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--success); animation: pulse-dot 2s ease infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}
.hero__avatar {
  width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 1.5rem;
  background: linear-gradient(135deg, var(--brand), #6366f1);
  display: flex; align-items: center; justify-content: center;
  border: 3px solid rgba(14, 165, 233, 0.3);
  box-shadow: 0 0 40px var(--brand-glow);
  animation: fadeInUp 0.8s ease 0.1s both;
  overflow: hidden;
}
.hero__avatar img { width: 100%; height: 100%; object-fit: cover; }
.hero__initials { font-size: 2.5rem; font-weight: 800; color: #fff; }
.hero__name {
  font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 900;
  background: linear-gradient(135deg, #fff 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; line-height: 1.2; margin-bottom: 0.5rem;
  animation: fadeInUp 0.8s ease 0.2s both;
}
.hero__title-wrap {
  display: flex; align-items: center; justify-content: center; gap: 2px;
  margin-bottom: 1rem; animation: fadeInUp 0.8s ease 0.3s both;
}
.hero__title {
  font-size: clamp(1rem, 2.5vw, 1.375rem); font-weight: 500;
  color: var(--brand);
}
.hero__cursor {
  font-weight: 300; color: var(--brand); animation: blink 1s step-end infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.hero__bio {
  font-size: 1rem; color: var(--text-secondary); max-width: 500px;
  margin: 0 auto 2rem; animation: fadeInUp 0.8s ease 0.4s both;
}
.hero__cta {
  display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.5s both;
}
.hero__scroll {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  color: var(--text-muted); animation: bounce 2s ease infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* Buttons */
.btn { 
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; border-radius: 12px; font-weight: 600;
  font-size: 0.875rem; text-decoration: none; cursor: pointer;
  transition: var(--transition); border: none; font-family: var(--font);
}
.btn--primary {
  background: linear-gradient(135deg, var(--brand), #3b82f6);
  color: #fff; box-shadow: 0 4px 20px var(--brand-glow);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--brand-glow); }
.btn--outline {
  background: transparent; color: var(--text);
  border: 1px solid var(--border-hover);
}
.btn--outline:hover { background: var(--brand-light); border-color: var(--brand); color: var(--brand); }

/* ═══════ SECTIONS ═══════ */
.section {
  padding: 5rem 2rem; position: relative;
}
.section--alt { background: var(--bg-surface); }
.section--contact {
  background: radial-gradient(ellipse at center, rgba(14,165,233,0.06) 0%, transparent 60%),
              var(--bg-deep);
}
.section__container { max-width: 1000px; margin: 0 auto; }
.section__label {
  display: inline-block; font-size: 0.75rem; font-weight: 700;
  color: var(--brand); text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.section__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 800;
  color: var(--text); margin-bottom: 2.5rem;
}

/* Reveal animations — configurable */
.reveal {
  opacity: 0;
  transition: opacity var(--scroll-anim-duration) ease, transform var(--scroll-anim-duration) ease;
}
.reveal.visible { opacity: 1; transform: none !important; }

/* Animation types */
.reveal--fade-up { transform: translateY(40px); }
.reveal--fade-down { transform: translateY(-40px); }
.reveal--slide-left { transform: translateX(-60px); }
.reveal--slide-right { transform: translateX(60px); }
.reveal--zoom-in { transform: scale(0.85); }
.reveal--flip { transform: perspective(600px) rotateX(15deg); }

/* Stagger delay for children */
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal[data-delay="4"] { transition-delay: 0.4s; }
.reveal[data-delay="5"] { transition-delay: 0.5s; }

/* ═══════ ABOUT ═══════ */
.about__layout {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 2rem;
  align-items: start;
}
.about__left { /* foto + texto na mesma coluna */ }
.about__photo-wrap {
  border-radius: var(--radius); overflow: hidden;
  margin-bottom: 1rem;
}
.about__photo {
  width: 100%; height: auto; max-height: 340px;
  object-fit: cover; border-radius: var(--radius);
  border: 1px solid var(--border); display: block;
}
.about__text {
  font-size: 1rem; color: var(--text-secondary); line-height: 1.8;
  white-space: pre-line;
}
.about__highlights { display: flex; flex-direction: column; gap: 0.75rem; }
.highlight-card {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.25rem; border-radius: var(--radius-sm);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: var(--transition);
}
.highlight-card:hover { border-color: var(--border-hover); transform: translateX(4px); }
.highlight-card__icon {
  width: 44px; height: 44px; border-radius: 10px;
  background: var(--brand-light); color: var(--brand);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.highlight-card__value { font-size: 1.5rem; font-weight: 800; color: var(--text); line-height: 1; }
.highlight-card__label { font-size: 0.8125rem; color: var(--text-muted); margin-top: 0.125rem; }

@media (max-width: 768px) {
  .about__layout { grid-template-columns: 1fr; }
  .about__photo { max-height: 240px; }
}

/* ═══════ TECH STACK ═══════ */
.tech__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.tech-category {
  padding: 1.5rem; border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
}
.tech-category__header {
  display: flex; align-items: center; gap: 0.75rem;
  margin-bottom: 1rem; padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.tech-category__icon {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--brand-light); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
}
.tech-category__name { font-weight: 700; font-size: 0.9375rem; }
.tech-category__items { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tech-item {
  display: inline-flex; align-items: center; gap: 0.375rem;
  padding: 0.375rem 0.75rem; border-radius: 8px;
  background: rgba(14, 165, 233, 0.06); border: 1px solid var(--border);
  font-size: 0.8125rem; font-weight: 500; color: var(--text-secondary);
  transition: var(--transition);
}
.tech-item:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-light); }
.tech-item i { width: 14px; height: 14px; }

/* ═══════ PROJECTS ═══════ */
.projects-grid {
  display: grid; gap: 1.5rem;
}
.projects-grid--cols-3 { grid-template-columns: repeat(3, 1fr); }

.projects-filter {
  display: flex; flex-wrap: wrap; gap: 0.5rem; justify-content: center;
  margin-bottom: 2rem;
}
.projects-filter__btn {
  padding: 0.5rem 1.25rem; border-radius: 100px;
  background: var(--bg-card); color: var(--text-muted);
  border: 1px solid var(--border); cursor: pointer;
  font-weight: 600; font-size: 0.8125rem; font-family: var(--font);
  transition: var(--transition);
}
.projects-filter__btn:hover { border-color: var(--brand); color: var(--brand); }
.projects-filter__btn.active {
  background: var(--brand-light); border-color: var(--brand); color: var(--brand);
}
.project-card {
  border-radius: var(--radius);
  background: var(--bg-card); border: 1px solid var(--border);
  transition: var(--transition); position: relative; overflow: hidden;
  display: flex; flex-direction: column;
}
.project-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); }
.project-card--featured { border-color: var(--brand); }
.project-card--wide { grid-column: span 2; }
.project-card--featured::before {
  content: '★ Destaque'; position: absolute; top: 0.75rem; right: 0.75rem;
  font-size: 0.6875rem; font-weight: 700; color: var(--brand); z-index: 2;
  background: var(--brand-light); padding: 0.25rem 0.5rem; border-radius: 6px;
}
.project-card__img-wrap {
  width: 100%; height: 180px; flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  background: rgba(0,0,0,0.2);
}
.project-card__img {
  width: 100%; height: 100%; object-fit: cover;
  display: block;
}
.project-card__img-placeholder {
  width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); opacity: 0.5;
}
.project-card__img-placeholder i { width: 32px; height: 32px; }

/* Em breve state */
.project-card--soon::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(3, 7, 18, 0.4);
  backdrop-filter: blur(var(--soon-blur, 4px)); -webkit-backdrop-filter: blur(var(--soon-blur, 4px));
  z-index: 3; border-radius: var(--radius); pointer-events: none;
}
.project-card--soon-foco .project-card__soon-badge {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff; font-weight: 700; font-size: 0.875rem;
  padding: 0.5rem 1.25rem; border-radius: 100px;
  z-index: 4; box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}
.project-card--soon-badge .project-card__soon-badge {
  position: absolute; top: 0.75rem; right: 0.75rem;
  background: rgba(14, 165, 233, 0.15); border: 1px solid rgba(14, 165, 233, 0.3);
  color: var(--brand, #0EA5E9); font-weight: 700; font-size: 0.6875rem;
  padding: 0.25rem 0.5rem; border-radius: 6px;
  z-index: 4;
}
.project-card__body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.project-card__name { font-size: 1.125rem; font-weight: 700; margin-bottom: 0.5rem; }
.project-card__desc { font-size: 0.875rem; color: var(--text-secondary); margin-bottom: 1rem; line-height: 1.6; flex: 1; }
.project-card__tags { display: flex; flex-wrap: wrap; gap: 0.375rem; margin-bottom: 1rem; }
.project-tag {
  padding: 0.25rem 0.5rem; border-radius: 6px; font-size: 0.6875rem;
  font-weight: 600; color: var(--brand); background: var(--brand-light);
}
.project-card__btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem; border-radius: 10px;
  background: var(--brand-light); color: var(--brand);
  font-size: 0.8125rem; font-weight: 600; text-decoration: none;
  border: 1px solid transparent; transition: var(--transition);
  width: fit-content;
}
.project-card__btn:hover {
  background: var(--brand); color: #fff;
  border-color: var(--brand);
}
.project-card__btn i { width: 14px; height: 14px; }
.project-card__link {
  display: inline-flex; align-items: center; gap: 0.375rem;
  color: var(--brand); font-size: 0.8125rem; font-weight: 600;
  text-decoration: none; transition: var(--transition);
}
.project-card__link:hover { gap: 0.625rem; }
.project-card__link i { width: 14px; height: 14px; }

/* Carousel */
.projects-carousel { position: relative; overflow: hidden; }
.projects-carousel__track {
  display: flex; gap: 1.5rem; transition: transform 0.5s ease;
}
.projects-carousel__track .project-card { min-width: calc(33.333% - 1rem); flex-shrink: 0; }
.projects-carousel__nav {
  display: flex; gap: 0.5rem; justify-content: center; margin-top: 1.5rem;
}
.carousel-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--bg-card); color: var(--text-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.carousel-btn:hover { border-color: var(--brand); color: var(--brand); }

@media (max-width: 768px) {
  .projects-grid--cols-2, .projects-grid--cols-3 { grid-template-columns: 1fr; }
  .project-card--wide { grid-column: span 1; }
  .project-card__img-wrap { height: 160px; }
  .projects-carousel__track .project-card { min-width: calc(100% - 1rem); }
}

/* ═══════ TIMELINE ═══════ */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(to bottom, var(--brand), transparent);
}
.timeline-item { position: relative; margin-bottom: 2rem; padding-left: 1.5rem; }
.timeline-item::before {
  content: ''; position: absolute; left: -2rem; top: 0.5rem;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--bg-deep); border: 3px solid var(--brand);
  z-index: 1;
}
.timeline-item--current::before {
  background: var(--brand); box-shadow: 0 0 12px var(--brand-glow);
}
.timeline-item__header {
  display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.375rem;
}
.timeline-item__icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--brand-light); color: var(--brand);
  display: flex; align-items: center; justify-content: center;
}
.timeline-item__icon i { width: 16px; height: 16px; }
.timeline-item__company { font-weight: 700; font-size: 1rem; }
.timeline-item__badge {
  font-size: 0.6875rem; font-weight: 700; color: var(--success);
  background: rgba(34, 197, 94, 0.1); padding: 0.125rem 0.5rem;
  border-radius: 100px; border: 1px solid rgba(34, 197, 94, 0.25);
}
.timeline-item__role { font-size: 0.9375rem; color: var(--brand); font-weight: 600; margin-bottom: 0.125rem; }
.timeline-item__period { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; margin-bottom: 0.375rem; }
.timeline-item__desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.6; }

/* ═══════ CONTACT ═══════ */
.contact__desc { font-size: 1rem; color: var(--text-secondary); margin-bottom: 2rem; }
.contact__email-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.875rem 2rem; border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), #3b82f6);
  color: #fff; font-weight: 700; font-size: 1rem;
  text-decoration: none; transition: var(--transition);
  box-shadow: 0 4px 24px var(--brand-glow);
}
.contact__email-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 32px var(--brand-glow); }
.contact__email-btn i { width: 20px; height: 20px; }
.contact__social {
  display: flex; gap: 0.75rem; justify-content: center; margin-top: 2rem;
}
.social-link {
  width: 44px; height: 44px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--bg-card);
  color: var(--text-muted); display: flex; align-items: center;
  justify-content: center; transition: var(--transition);
  text-decoration: none;
}
.social-link:hover { border-color: var(--brand); color: var(--brand); background: var(--brand-light); transform: translateY(-2px); }
.social-link i { width: 20px; height: 20px; }

/* ═══════ FOOTER ═══════ */
.footer {
  padding: 2rem; text-align: center;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem; color: var(--text-muted);
}

/* ═══════ ANIMATIONS ═══════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ═══════ SCROLLBAR ═══════ */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(14, 165, 233, 0.2); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(14, 165, 233, 0.4); }

/* ═══════ FULL RESPONSIVE ═══════ */
@media (max-width: 768px) {
  .section { padding: 3rem 1.25rem; }
  .section__title { font-size: 1.5rem; margin-bottom: 1.5rem; }
  .hero__avatar { width: 90px; height: 90px; }
  .hero__initials { font-size: 2rem; }
  .hero__cta { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; max-width: 280px; }
  .tech__grid { grid-template-columns: 1fr; }
  .timeline { padding-left: 1.5rem; }
  .timeline-item { padding-left: 1rem; }
  .timeline-item__header { flex-wrap: wrap; gap: 0.5rem; }
  .contact__social { flex-wrap: wrap; }
  .contact__email-btn { font-size: 0.875rem; padding: 0.75rem 1.5rem; }
  .navbar { padding: 0 1rem; }
}

@media (max-width: 480px) {
  .hero__name { font-size: 1.75rem; }
  .hero__title { font-size: 0.9375rem; }
  .hero__bio { font-size: 0.875rem; }
  .section { padding: 2.5rem 1rem; }
  .highlight-card { padding: 1rem; gap: 0.75rem; }
  .highlight-card__icon { width: 36px; height: 36px; }
  .highlight-card__value { font-size: 1.25rem; }
  .project-card__img { height: 140px; }
  .project-card__body { padding: 1rem; }
  .timeline-item::before { left: -1.5rem; width: 12px; height: 12px; }
}