/* ============================================================
   PORTFOLIO.CSS — Angel Payan
   Design: Clean, technical, minimal. No glassmorphism.
   Inspired by: GitHub Dark, Linear.app
   ============================================================ */

/* ── TOKENS ── */
:root {
  --bg:          #0d1117;
  --bg-surface:  #161b22;
  --bg-card:     #1c2128;
  --bg-hover:    #22272e;
  --border:      rgba(240, 246, 252, 0.10);
  --border-mid:  rgba(240, 246, 252, 0.16);

  --text:        #e6edf3;
  --text-muted:  #8b949e;
  --text-subtle: #484f58;

  --accent:      #10b981;
  --accent-dim:  rgba(16, 185, 129, 0.12);
  --accent-glow: rgba(16, 185, 129, 0.25);

  --blue:        #58a6ff;
  --purple:      #a371f7;
  --red:         #f85149;
  --orange:      #e3b341;

  --sidebar-w:   260px;
  --radius:      8px;
  --radius-lg:   12px;
  --font:        'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono:        'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --transition:  0.18s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #34d399; }

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

ul { list-style: none; }

h1, h2, h3, h4, h5 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}

p { color: var(--text-muted); line-height: 1.75; }

strong { color: var(--text); font-weight: 600; }

/* ── LAYOUT ── */
#page-wraper {
  display: flex;
  min-height: 100vh;
}

#main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
}

.section:last-of-type { border-bottom: none; }

/* ── SIDEBAR ── */
.responsive-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  z-index: 1000;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.menu { flex: 1; }

.sidebar-content {
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 100vh;
}

/* Profile */
.profile-section { margin-bottom: 28px; }

.profile-info { display: flex; flex-direction: column; gap: 6px; }

.profile-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.profile-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-dim);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 13px;
}

.name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.role {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 42px;
}

.role-text {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.status-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  animation: pulse-dot 2.5s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Nav */
.main-nav { margin-bottom: 20px; }

.main-menu { display: flex; flex-direction: column; gap: 2px; }

.main-menu li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
  position: relative;
}

.main-menu li a:hover,
.main-menu li.active a {
  color: var(--text);
  background: var(--bg-hover);
}

.main-menu li.active a {
  color: var(--accent);
}

.main-menu li.active a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 16px;
  background: var(--accent);
  border-radius: 2px;
}

/* Social Links */
.social-links {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.social-link {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
  transition: all var(--transition);
}

.social-link:hover {
  color: var(--accent);
  border-color: rgba(16, 185, 129, 0.3);
  background: var(--accent-dim);
}

/* Sidebar Controls */
.sidebar-controls {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sidebar-language-switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.language-label {
  font-size: 11px;
  color: var(--text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.language-options { display: flex; gap: 4px; }

.lang-btn {
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
}

.lang-btn:hover,
.lang-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.theme-toggle { display: flex; justify-content: flex-end; }

.theme-switch {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 13px;
  transition: all var(--transition);
}

.theme-switch:hover { color: var(--orange); border-color: var(--orange); }

.theme-switch .fa-sun { display: none; }

/* Mobile menu */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 1100;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}

.hamburger-line {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 999;
}

.mobile-menu-overlay.active { display: block; }

/* ── SECTION HEADER ── */
.section-header {
  margin-bottom: 48px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.section-subtitle {
  font-size: 14px;
  color: var(--text-muted);
}

/* ── SECTION LABEL (small tag above title) ── */
.section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

/* ── HERO SECTION ── */
.hero-block {
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
}

.hero-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-label::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-name {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  line-height: 1.1;
}

.hero-titles {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-title-badge {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 12px;
}

.hero-title-sep {
  color: var(--text-subtle);
  font-size: 14px;
}

.hero-tagline {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-tagline br { display: inline; }

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── BUTTONS ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  background: var(--accent);
  color: #0d1117 !important;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  background: #34d399;
  color: #0d1117 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  background: transparent;
  color: var(--text) !important;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border-mid);
  transition: all var(--transition);
}

.btn-secondary:hover {
  border-color: var(--border-mid);
  background: var(--bg-hover);
  color: var(--text) !important;
}

/* ── ABOUT GRID ── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 48px;
  align-items: start;
}

.about-block p {
  margin-bottom: 16px;
  font-size: 14.5px;
}

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

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 12px;
  text-align: center;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.stat-card.visible { opacity: 1; transform: none; }

.stat-number {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ── PRODUCTS SECTION ── */
.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 48px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease, transform 0.4s ease, border-color var(--transition);
}

.product-card.visible { opacity: 1; transform: none; }

.product-card:hover {
  border-color: var(--border-mid);
  background: var(--bg-hover);
}

.product-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.product-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.product-icon-blue  { background: rgba(88, 166, 255, 0.12); color: var(--blue); border: 1px solid rgba(88,166,255,0.2); }
.product-icon-purple { background: rgba(163, 113, 247, 0.12); color: var(--purple); border: 1px solid rgba(163,113,247,0.2); }
.product-icon-green { background: rgba(16, 185, 129, 0.12); color: var(--accent); border: 1px solid rgba(16,185,129,0.2); }
.product-icon-red   { background: rgba(248, 81, 73, 0.10); color: var(--red); border: 1px solid rgba(248,81,73,0.2); }

.product-status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 20px;
  padding: 3px 10px;
  border: 1px solid;
}

.product-status.live {
  color: var(--accent);
  border-color: rgba(16,185,129,0.25);
  background: rgba(16,185,129,0.08);
}

.product-status.commercial {
  color: var(--orange);
  border-color: rgba(227,179,65,0.25);
  background: rgba(227,179,65,0.08);
}

.status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.product-status.live .status-dot { animation: pulse-dot 2s infinite; }

.product-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

.product-type {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0;
}

.product-desc {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.product-highlights {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0;
}

.product-highlights li {
  font-size: 12.5px;
  color: var(--text-muted);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.product-highlights li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.product-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.stack-tag {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-family: var(--mono);
}

.product-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.product-btn-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: var(--accent-dim);
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent) !important;
  transition: all var(--transition);
}

.product-btn-live:hover {
  background: rgba(16,185,129,0.2);
  color: var(--accent) !important;
}

.product-btn-case {
  font-size: 12px;
  font-weight: 500;
  color: var(--text) !important;
  transition: all var(--transition);
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.product-btn-case:hover { 
  color: var(--text) !important; 
  background: var(--bg-hover);
  border-color: var(--border-mid);
}

/* Additional work */
.additional-work {
  border-top: 1px solid var(--border);
  padding-top: 40px;
}

.additional-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 24px;
}

.additional-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.additional-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.additional-item > i {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 2px;
  flex-shrink: 0;
  width: 16px;
  text-align: center;
}

.additional-item strong {
  display: block;
  font-size: 13px;
  color: var(--text);
  margin-bottom: 4px;
}

.additional-item p {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ── PROJECTS ── */
.filters-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.filter-btn {
  padding: 5px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
}

.filter-btn:hover { border-color: var(--border-mid); color: var(--text); }

.filter-btn.active {
  background: var(--accent-dim);
  border-color: rgba(16,185,129,0.3);
  color: var(--accent);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.projects-mobile-ui { display: none; }
.projects-mobile-hint { display: none; }
.projects-mobile-dots { display: none; }

.proj-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease, border-color var(--transition), background var(--transition);
}

.proj-card.visible { opacity: 1; transform: none; }

.proj-card:hover {
  border-color: var(--border-mid);
  background: var(--bg-hover);
}

.proj-icon {
  width: 34px;
  height: 34px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--text-muted);
}

.proj-card h4 {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.proj-card p {
  font-size: 12.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.proj-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.proj-stack span {
  font-size: 10.5px;
  padding: 2px 7px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-family: var(--mono);
}

.proj-link {
  font-size: 12px;
  font-weight: 500;
  color: var(--accent) !important;
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  width: fit-content;
}

.proj-link:hover { color: #34d399 !important; }

/* ── SKILLS ── */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.skill-group {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.skill-group.visible { opacity: 1; transform: none; }

.skill-group-title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.skill-tags span {
  font-size: 12px;
  padding: 4px 12px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-weight: 400;
  transition: all var(--transition);
}

.skill-tags span:hover {
  border-color: var(--border-mid);
  background: var(--bg-hover);
}

/* ── CONTACT ── */
.contact-block { max-width: 800px; }

.contact-grid {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: start;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text) !important;
  transition: all var(--transition);
}

.contact-link:hover {
  border-color: var(--border-mid);
  background: var(--bg-hover);
  color: var(--text) !important;
}

.contact-link-icon {
  width: 34px;
  height: 34px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.contact-link-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.contact-link-value {
  font-size: 12.5px;
  color: var(--text);
  font-weight: 500;
}

/* ── Contact CTA Block ── */
.contact-cta-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-cta-intro {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0 0 4px;
}

.cta-channel {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  text-decoration: none;
  transition: all var(--transition);
  color: var(--text) !important;
}

.cta-channel:hover {
  transform: translateY(-2px);
  background: var(--bg-hover);
}

.cta-channel.whatsapp { border-color: rgba(37, 211, 102, 0.35); }
.cta-channel.whatsapp:hover {
  border-color: rgba(37, 211, 102, 0.7);
  box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.08);
}

.cta-channel.email { border-color: rgba(59, 130, 246, 0.3); }
.cta-channel.email:hover {
  border-color: rgba(59, 130, 246, 0.6);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.08);
}

.cta-channel-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.whatsapp .cta-channel-icon { background: rgba(37, 211, 102, 0.12); color: #25d366; }
.email    .cta-channel-icon { background: rgba(59, 130, 246, 0.1);  color: #3b82f6; }

.cta-channel-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 2px;
}

.cta-channel-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.cta-channel-arrow {
  margin-left: auto;
  color: var(--text-subtle);
  font-size: 13px;
  transition: transform var(--transition);
}

.cta-channel:hover .cta-channel-arrow {
  transform: translateX(4px);
  color: var(--text-muted);
}

.contact-cta-note {
  font-size: 12px;
  color: var(--text-subtle);
  margin: 4px 0 0;
  display: flex;
  align-items: center;
  gap: 6px;
}


/* ── FOOTER ── */
.site-footer {
  padding: 24px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-surface);
}

.site-footer p {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
  text-align: center;
}

.site-footer a {
  color: var(--text-muted);
}

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

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  #main-content { margin-left: 0; }

  .responsive-nav {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .responsive-nav.mobile-active {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,0.5);
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .hero-block { padding: 80px 0 48px; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-stats {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

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

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

  .contact-grid { grid-template-columns: 1fr; gap: 32px; }

  .contact-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .container { padding: 0 20px; }

  .section { padding: 56px 0; }

  .projects-grid { 
    position: relative;
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 20px;
    padding-right: 28px;
    -ms-overflow-style: none;
    scrollbar-width: none;
    mask-image: linear-gradient(to right, black 0%, black 84%, transparent 100%);
  }
  .projects-grid::-webkit-scrollbar {
    display: none;
  }
  .proj-card { 
    min-width: 82vw;
    scroll-snap-align: center;
  }

  .projects-mobile-ui {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 2px;
  }

  .projects-mobile-hint {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-subtle);
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .projects-mobile-hint i {
    color: var(--accent);
    animation: projectsHintPulse 1.8s ease-in-out infinite;
  }

  .projects-mobile-dots {
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .projects-mobile-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    border: none;
    background: var(--border-mid);
    padding: 0;
    cursor: pointer;
    transition: transform var(--transition), background var(--transition), width var(--transition);
  }

  .projects-mobile-dot.active {
    width: 22px;
    background: var(--accent);
  }

  .form-row { grid-template-columns: 1fr; }

  .hero-titles { flex-direction: column; align-items: flex-start; gap: 6px; }

  .hero-title-sep { display: none; }

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

  .contact-links { grid-template-columns: 1fr; }
}

@keyframes projectsHintPulse {
  0%, 100% { transform: translateX(0); opacity: 0.7; }
  50% { transform: translateX(4px); opacity: 1; }
}