/* ============================================================
   VARIABLES
   ============================================================ */
:root {
  /* Colors */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;

  --primary: #1a56db;
  --primary-dark: #1340b0;
  --primary-light: #e8f0fe;

  --accent: #7c3aed;
  --accent-light: #f0ebff;

  --success: #059669;
  --success-light: #ecfdf5;

  --text-heading: #0f172a;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --border: #e2e8f0;
  --border-focus: #1a56db;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12), 0 4px 16px rgba(0,0,0,0.06);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;

  --t: 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  --sidebar-w: 290px;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--gray-50);
  color: var(--text-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
address { font-style: normal; }
ul, ol { list-style: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }

/* ============================================================
   LAYOUT
   ============================================================ */
main {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px;
  gap: 22px;
  align-items: start;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar {
  position: sticky;
  top: 28px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.sidebar-top {
  padding: 28px 22px 22px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}

.avatar-wrap {
  position: relative;
  width: 90px; height: 90px;
}

.profile_img {
  width: 90px; height: 90px;
  border-radius: 50%;
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary), var(--shadow-sm);
  object-fit: cover;
}

.status-dot {
  position: absolute;
  bottom: 4px; right: 4px;
  width: 13px; height: 13px;
  background: var(--success);
  border-radius: 50%;
  border: 2px solid var(--white);
}

.sidebar-name {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.sidebar-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 12px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.tag {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--gray-100);
  padding: 2px 9px;
  border-radius: 20px;
  border: 1px solid var(--border);
  font-weight: 500;
}

.btn-cv {
  display: flex;
  align-items: center;
  gap: 7px;
  width: 100%;
  justify-content: center;
  padding: 10px 18px;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: var(--t);
  margin-top: 4px;
}

.btn-cv:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(26,86,219,0.35);
}

/* Contacts toggle (mobile) */
.contacts-toggle {
  display: none;
  width: 100%;
  padding: 12px 22px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  transition: var(--t);
}

.contacts-toggle:hover { background: var(--gray-50); }
.toggle-icon { transition: transform 0.3s; font-size: 16px; }
.contacts-toggle.open .toggle-icon { transform: rotate(180deg); }

.sidebar-contacts {
  padding: 18px 22px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 11px;
}

.contact-icon {
  width: 32px; height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-sm);
  font-size: 15px;
  margin-top: 2px;
}

.clabel {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1px;
}

.cval {
  font-size: 12px;
  color: var(--text-body);
  word-break: break-word;
  transition: color var(--t);
  font-weight: 400;
}

.cval:hover { color: var(--primary); }

.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

.social-row {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.social-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gray-100);
  color: var(--gray-600);
  border-radius: var(--radius-sm);
  font-size: 16px;
  border: 1px solid var(--border);
  transition: var(--t);
}

.social-btn:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-2px);
}

/* ============================================================
   MAIN WRAP
   ============================================================ */
.main-wrap {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
  overflow: visible;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 8px 10px 8px 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 14px;
  z-index: 100;
}

.nav-list {
  display: flex;
  gap: 2px;
}

.nav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 7px 16px;
  border-radius: var(--radius-md);
  transition: var(--t);
}

.nav-link:hover { background: var(--gray-100); color: var(--text-heading); }

.nav-link.active {
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
}

.btn-inquiry {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius-md);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: var(--t);
  white-space: nowrap;
}

.btn-inquiry:hover {
  background: var(--primary-dark);
  box-shadow: 0 4px 12px rgba(26,86,219,0.3);
}

.btn-outline {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  transition: var(--t);
  background: var(--white);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
}

/* ============================================================
   PAGES
   ============================================================ */
.page {
  display: none;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  animation: pageIn 0.28s ease both;
}

.page.active { display: block; }

@keyframes pageIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
  padding-bottom: 22px;
  border-bottom: 2px solid var(--gray-100);
}

.page-title {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--text-heading);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 3px;
}

.section { margin-top: 32px; }

.section-heading {
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--text-heading);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-heading::before {
  content: '';
  display: inline-block;
  width: 3px; height: 18px;
  background: var(--primary);
  border-radius: 2px;
  flex-shrink: 0;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 28px;
  align-items: start;
}

.profile-summary {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.85;
}

.profile-summary strong {
  color: var(--primary);
  font-weight: 600;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stat-card {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 12px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: var(--t);
}

.stat-card:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 26px;
  color: var(--primary);
  line-height: 1;
}

.stat-label {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.service-card {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: var(--t);
}

.service-card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(26,86,219,0.08);
  transform: translateY(-2px);
}

.service-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}

.service-card-title {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text-heading);
  margin-bottom: 5px;
}

.service-card-text {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Tech Cloud */
.tech-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-pill {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-body);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 5px 14px;
  border-radius: 20px;
  transition: var(--t);
}

.tech-pill:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* ============================================================
   RESUME
   ============================================================ */
.resume-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 36px;
}

.timeline-section { margin-bottom: 32px; }

.timeline-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.timeline-icon {
  width: 32px; height: 32px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text-heading);
}

.timeline {
  border-left: 2px solid var(--gray-200);
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  position: relative;
  padding-bottom: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px; top: 5px;
  width: 10px; height: 10px;
  background: var(--primary);
  border-radius: 50%;
  border: 2px solid var(--white);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.tl-title {
  font-weight: 700;
  font-size: 14px;
  color: var(--text-heading);
  margin-bottom: 2px;
}

.tl-company {
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  display: block;
  margin-bottom: 3px;
}

.tl-year {
  font-size: 11px;
  color: var(--text-light);
  font-weight: 500;
  display: block;
  margin-bottom: 8px;
}

.tl-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 0;
}

.tl-points li {
  font-size: 12px;
  color: var(--text-muted);
  padding-left: 14px;
  position: relative;
  line-height: 1.55;
}

.tl-points li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--gray-300);
}

/* Skills */
.skills-heading {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text-heading);
  margin-bottom: 18px;
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.skill-item {}

.skill-top {
  display: flex;
  justify-content: space-between;
  margin-bottom: 5px;
}

.skill-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-body);
}

.skill-pct {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.skill-bar-bg {
  height: 5px;
  background: var(--gray-100);
  border-radius: 5px;
  overflow: hidden;
  border: 1px solid var(--gray-200);
}

.skill-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 5px;
  width: 0;
  transition: width 1.1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   PORTFOLIO
   ============================================================ */
.filter-row {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.filter-btn {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 18px;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  background: var(--white);
  transition: var(--t);
  letter-spacing: 0.01em;
}

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

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.project-card {
  display: none;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: var(--t);
  box-shadow: var(--shadow-sm);
}

.project-card.active { display: block; }

.project-card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 28px rgba(26,86,219,0.12);
  transform: translateY(-3px);
}

.project-thumb {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--gray-100);
}

.project-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.project-card:hover .project-thumb img { transform: scale(1.04); }

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26, 86, 219, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--t);
  gap: 8px;
  color: white;
  font-size: 14px;
  font-weight: 600;
}

.project-card:hover .project-overlay { opacity: 1; }

.project-overlay ion-icon { font-size: 22px; }

.project-cat-badge {
  position: absolute;
  top: 10px; left: 10px;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border-radius: 20px;
  background: rgba(255,255,255,0.92);
  color: var(--primary);
  border: 1px solid rgba(26,86,219,0.2);
}

.project-body {
  padding: 14px 16px 16px;
}

.project-name {
  font-weight: 700;
  font-size: 13px;
  color: var(--text-heading);
  line-height: 1.4;
  margin-bottom: 6px;
}

.project-short {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 10px;
}

.project-role-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 600;
  color: var(--success);
  background: var(--success-light);
  padding: 3px 9px;
  border-radius: 20px;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 28px;
}

.contact-info-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-card {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px;
  display: flex;
  align-items: flex-start;
  gap: 11px;
  transition: var(--t);
}

.contact-card:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.contact-card-icon {
  width: 32px; height: 32px; flex-shrink: 0;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
}

.inquiry-box {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.inquiry-title {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.inquiry-title ion-icon { color: var(--primary); font-size: 20px; }

.inquiry-sub {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* ============================================================
   FORM ELEMENTS
   ============================================================ */
.inquiry-form { display: flex; flex-direction: column; gap: 14px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-field { display: flex; flex-direction: column; gap: 5px; }

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-body);
  letter-spacing: 0.01em;
}

.req { color: var(--primary); }

.form-input {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 13px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-heading);
  outline: none;
  transition: var(--t);
  resize: none;
  width: 100%;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

.form-input::placeholder { color: var(--text-light); }

.form-textarea { min-height: 120px; }

.form-select { cursor: pointer; }

.btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: var(--t);
  width: 100%;
}

.btn-submit:hover:not([disabled]) {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,86,219,0.35);
}

.btn-submit[disabled] { opacity: 0.45; cursor: not-allowed; }

.form-note {
  font-size: 11px;
  color: var(--text-light);
  text-align: center;
}

/* ============================================================
   MODALS
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-overlay.open { display: flex; }

.modal-container {
  background: var(--white);
  border-radius: var(--radius-xl);
  max-width: 780px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.28s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}

.modal-sm { max-width: 460px; }

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 24px 28px 18px;
  border-bottom: 1px solid var(--border);
  gap: 16px;
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 2;
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.modal-category {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 4px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-heading);
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.modal-close-btn {
  width: 34px; height: 34px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--gray-100);
  border-radius: 50%;
  color: var(--gray-500);
  font-size: 20px;
  transition: var(--t);
  margin-top: 2px;
}

.modal-close-btn:hover { background: var(--gray-200); color: var(--text-heading); }

.modal-body { padding: 24px 28px 28px; }

.modal-image {
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin-bottom: 22px;
  max-height: 220px;
  object-fit: cover;
  background: var(--gray-50);
}

.modal-meta-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  margin-bottom: 22px;
}

.modal-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.modal-meta-item ion-icon {
  color: var(--primary);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 2px;
}

.meta-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  display: block;
  margin-bottom: 2px;
}

.meta-val {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-body);
  display: block;
  line-height: 1.3;
}

.meta-link { color: var(--primary); }
.meta-link:hover { text-decoration: underline; }

.modal-section { margin-bottom: 20px; }

.modal-section-title {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--text-heading);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gray-100);
}

.modal-desc {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.8;
}

.modal-responsibilities {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.modal-responsibilities li {
  font-size: 13px;
  color: var(--text-body);
  padding-left: 18px;
  position: relative;
  line-height: 1.6;
}

.modal-responsibilities li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
  font-size: 12px;
}

.modal-tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.modal-tech-pill {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid rgba(26,86,219,0.2);
  padding: 4px 12px;
  border-radius: 20px;
}

/* CV Modal */
.cv-intro {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 18px;
}

.cv-form { display: flex; flex-direction: column; gap: 14px; }

.cv-success {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--success);
  font-weight: 600;
  background: var(--success-light);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-top: 12px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(4, 1fr); }
  .resume-grid { grid-template-columns: 1fr; }
  .modal-meta-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  main { grid-template-columns: 1fr; padding: 14px; gap: 14px; }

  .sidebar { position: static; }
  .sidebar-contacts { display: none; }
  .sidebar-contacts.open { display: block; }
  .contacts-toggle { display: flex; }

  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .page { padding: 24px 20px; }
}

@media (max-width: 560px) {
  .project-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .nav-link { font-size: 11px; padding: 6px 8px; }
  .btn-inquiry { display: none; }
  .modal-meta-row { grid-template-columns: 1fr 1fr; }
  .nav-list { gap: 0; flex-wrap: nowrap; }
  .navbar { padding: 6px 8px; top: 10px; overflow: visible; }
}


#profileSummary {
  display: -webkit-box;
  -webkit-line-clamp: 10;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: all 0.4s ease;
}

#profileSummary.expanded {
  display: block;
  -webkit-line-clamp: unset;
}

.read-more-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: var(--t);
}

.read-more-btn:hover { opacity: 0.75; }

.read-more-btn ion-icon {
  font-size: 16px;
  transition: transform 0.3s ease;
}

.read-more-btn.expanded ion-icon {
  transform: rotate(180deg);
}

.tl-location {
  font-size: 11px;
  color: var(--text-light);
  display: block;
  margin-bottom: 6px;
}

.tl-skills {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-body);
  margin-top: 10px;
  padding: 8px 12px;
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.tl-skills ion-icon {
  color: var(--primary);
  font-size: 14px;
  flex-shrink: 0;
}
/* ============================================================
   T1: HERO SECTION
   ============================================================ */
.hero-section {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 32px;
  align-items: center;
  padding: 32px 0 36px;
  border-bottom: 2px solid var(--gray-100);
  margin-bottom: 32px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  font-weight: 700;
  color: var(--success);
  background: var(--success-light);
  border: 1px solid rgba(5,150,105,0.2);
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: 0.03em;
  margin-bottom: 16px;
}

.hero-badge-dot {
  width: 7px; height: 7px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.hero-title {
  font-size: 42px;
  color: var(--text-heading);
  line-height: 1.1;
  margin-bottom: 14px;
}

.hero-title em {
  color: var(--primary);
}

.hero-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 520px;
  margin-bottom: 22px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 28px;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: var(--t);
  border: none;
  font-family: var(--font-body);
  text-decoration: none;
}

.hero-btn ion-icon { font-size: 16px; }

.hero-btn-primary {
  background: var(--primary);
  color: var(--white);
}
.hero-btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 14px rgba(26,86,219,0.3); }

.hero-btn-secondary {
  background: var(--accent-light);
  color: var(--accent);
  border: 1.5px solid rgba(124,58,237,0.2);
}
.hero-btn-secondary:hover { background: var(--accent); color: var(--white); transform: translateY(-1px); }

.hero-btn-ghost {
  background: var(--white);
  color: var(--text-body);
  border: 1.5px solid var(--border);
}
.hero-btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-stat { text-align: center; }
.hero-stat-num { display: block; font-family: var(--font-display); font-size: 22px; color: var(--primary); line-height: 1; }
.hero-stat-label { font-size: 10px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.hero-stat-div { width: 1px; height: 32px; background: var(--border); }

/* AI Diagram */
.hero-visual { display: flex; align-items: center; justify-content: center; }

.ai-diagram {
  position: relative;
  width: 200px; height: 200px;
}

.ai-lines {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}

.ai-node {
  position: absolute;
  width: 52px; height: 52px;
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  font-size: 9px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  box-shadow: var(--shadow-sm);
  transition: var(--t);
}

.ai-node ion-icon { font-size: 18px; }
.ai-node span { font-size: 8px; }

.ai-node:hover { border-color: var(--primary); color: var(--primary); box-shadow: 0 4px 12px rgba(26,86,219,0.12); }

.ai-node-center {
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 64px; height: 64px;
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  border-width: 2px;
  z-index: 2;
}

.ai-node-center ion-icon { font-size: 22px; }
.ai-node-center span { font-size: 9px; }

.ai-node-1 { top: 8px; left: 8px; }
.ai-node-2 { top: 8px; right: 8px; }
.ai-node-3 { bottom: 8px; left: 8px; }
.ai-node-4 { bottom: 8px; right: 8px; }

/* ============================================================
   T2: AI SYSTEMS GRID
   ============================================================ */
.ai-systems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  list-style: none;
}

.ai-system-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: var(--t);
}

.ai-system-card:hover {
  border-color: var(--primary);
  box-shadow: 0 6px 24px rgba(26,86,219,0.08);
  transform: translateY(-2px);
}

.ai-sys-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.ai-sys-badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
  background: var(--primary-light);
  padding: 3px 9px;
  border-radius: 20px;
  border: 1px solid rgba(26,86,219,0.15);
}

.ai-sys-metric {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 600;
  color: var(--success);
  background: var(--success-light);
  padding: 3px 9px;
  border-radius: 20px;
}

.ai-sys-metric ion-icon { font-size: 12px; }

.ai-sys-title {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-heading);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.ai-sys-problem {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

.ai-sys-problem strong { color: var(--text-body); }

.ai-sys-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
}

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

.ai-sys-pill {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--gray-100);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 20px;
}

.ai-sys-actions {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.ai-sys-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 13px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--t);
  text-decoration: none;
  font-family: var(--font-body);
  border: none;
}

.ai-sys-btn ion-icon { font-size: 13px; }

.ai-sys-btn-primary {
  background: var(--primary);
  color: var(--white);
}
.ai-sys-btn-primary:hover { background: var(--primary-dark); }

.ai-sys-btn-live {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid #6ee7b7 !important;
}
.ai-sys-btn-live:hover {
  background: var(--success);
  color: var(--white);
  border-color: var(--success) !important;
}

.ai-sys-btn-secondary {
  background: var(--accent-light);
  color: var(--accent);
}
.ai-sys-btn-secondary:hover { background: var(--accent); color: var(--white); }

.ai-sys-btn-ghost {
  background: var(--gray-100);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.ai-sys-btn-ghost:hover { background: var(--gray-200); color: var(--text-body); }

/* ============================================================
   T3: ARCHITECTURE MODAL CONTENT (Rich Version)
   ============================================================ */
.modal-arch { max-width: 920px; }

/* Sections */
.arch-section {
  margin-bottom: 26px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--gray-100);
}
.arch-section:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.arch-section-hero { background: var(--gray-50); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 20px 22px; }

.arch-section-title {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-heading);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.arch-section-title ion-icon { color: var(--primary); font-size: 17px; }

.arch-text {
  font-size: 13px;
  color: var(--text-body);
  line-height: 1.8;
}

/* Metrics row */
.arch-metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-top: 16px;
}
.arch-metric-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 10px;
  text-align: center;
  transition: var(--t);
}
.arch-metric-card:hover { border-color: var(--primary); background: var(--primary-light); }
.arch-metric-num {
  display: block;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}
.arch-metric-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

/* Diagram */
.arch-diagram-wrap {
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.arch-diagram-label {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px dashed var(--gray-200);
}
.arch-diagram-label:first-child { margin-top: 0; padding-top: 0; border-top: none; }

.arch-flow-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
}
.arch-flow-node {
  background: var(--white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 9px 13px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-body);
  text-align: center;
  line-height: 1.3;
  min-width: 80px;
}
.arch-flow-node small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: var(--text-muted);
  margin-top: 2px;
}
.arch-flow-node-ai {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}
.arch-flow-node-accent {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}
.arch-flow-arrow {
  font-size: 16px;
  color: var(--gray-300);
  font-weight: 400;
  flex-shrink: 0;
}
.arch-pills { display: flex; flex-wrap: wrap; gap: 7px; }

/* Workflow steps */
.arch-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  counter-reset: step;
  padding-left: 0;
  list-style: none;
}
.arch-steps li {
  font-size: 13px;
  color: var(--text-body);
  padding: 10px 14px 10px 46px;
  position: relative;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary);
  counter-increment: step;
  line-height: 1.65;
}
.arch-steps li::before {
  content: counter(step);
  position: absolute;
  left: 13px;
  top: 13px;
  width: 20px; height: 20px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.arch-steps li strong { color: var(--text-heading); }

/* Engineering challenges */
.arch-challenges-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.arch-challenge-card {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--gray-50);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 13px 15px;
  transition: var(--t);
}
.arch-challenge-card:hover { border-color: var(--primary); background: var(--primary-light); }
.arch-challenge-icon {
  width: 30px; height: 30px;
  flex-shrink: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 15px;
  margin-top: 1px;
}
.arch-challenge-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 4px;
}
.arch-challenge-body {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Scaling */
.arch-scaling {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 0;
  list-style: none;
}
.arch-scaling li {
  font-size: 13px;
  color: var(--text-body);
  padding-left: 22px;
  position: relative;
  line-height: 1.65;
}
.arch-scaling li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
  font-size: 13px;
}

/* Outcome */
.arch-outcome {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--success-light);
  border: 1px solid rgba(5,150,105,0.2);
  border-radius: var(--radius-lg);
  padding: 20px;
  border-bottom: none !important;
  margin-bottom: 0 !important;
  padding-bottom: 20px !important;
}
.arch-outcome ion-icon { color: var(--success); font-size: 24px; flex-shrink: 0; margin-top: 2px; }
.arch-outcome-title {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--success);
  margin-bottom: 6px;
}
.arch-outcome-body {
  font-size: 13px;
  color: var(--success);
  line-height: 1.75;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 700px) {
  .arch-metrics-row { grid-template-columns: repeat(2, 1fr); }
  .arch-flow-row { gap: 5px; }
  .arch-flow-node { min-width: 60px; font-size: 10px; padding: 7px 9px; }
}

/* ============================================================
   T4: LIVE DEMOS
   ============================================================ */
.section-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
  margin-top: -8px;
}

.demos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.demo-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--t);
  display: flex;
  flex-direction: column;
}

.demo-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.08); transform: translateY(-2px); }

.demo-card-top {
  padding: 16px 18px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.demo-platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}

.demo-soon-badge {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--gray-100);
  padding: 3px 9px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.demo-card-body { padding: 16px 18px; flex: 1; }

.demo-title {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-heading);
  margin-bottom: 8px;
}

.demo-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 12px;
}

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

.demo-pill {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--gray-100);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.demo-card-footer {
  padding: 12px 18px 16px;
  border-top: 1px solid var(--gray-100);
}

.demo-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  transition: var(--t);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
}

.demo-btn:hover:not(.demo-btn-disabled) { background: var(--primary); color: var(--white); }

.demo-btn-disabled {
  color: var(--text-muted);
  background: var(--gray-100);
  cursor: default;
}

/* ============================================================
   T5: CASE STUDIES
   ============================================================ */
.case-studies-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.case-study-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--t);
}

.case-study-card:hover { box-shadow: 0 8px 28px rgba(0,0,0,0.08); border-color: var(--primary); }

.cs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 0;
  flex-wrap: wrap;
  gap: 8px;
}

.cs-tags { display: flex; gap: 5px; flex-wrap: wrap; }

.cs-tag {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-light);
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid rgba(124,58,237,0.15);
}

.cs-read-time {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.cs-read-time ion-icon { font-size: 12px; }

.cs-title {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--text-heading);
  padding: 12px 20px 0;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.cs-body { padding: 14px 20px 20px; display: flex; flex-direction: column; gap: 13px; }

.cs-section { }

.cs-section-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.cs-section-label ion-icon { font-size: 13px; }

.cs-section p {
  font-size: 12px;
  color: var(--text-body);
  line-height: 1.7;
}

.cs-decisions {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding-left: 0;
}

.cs-decisions li {
  font-size: 12px;
  color: var(--text-body);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}

.cs-decisions li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 11px;
}

.cs-outcome {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--success-light);
  border: 1px solid rgba(5,150,105,0.2);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-top: 4px;
}

.cs-outcome ion-icon {
  color: var(--success);
  font-size: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

.cs-outcome span { font-size: 12px; color: var(--success); font-weight: 600; line-height: 1.5; }

/* ============================================================
   T6: GITHUB REPOS
   ============================================================ */
.github-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.github-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  transition: var(--t);
}

.github-card:hover { border-color: var(--gray-400); box-shadow: 0 4px 16px rgba(0,0,0,0.06); transform: translateY(-1px); }

.gh-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.gh-icon { font-size: 16px; color: var(--text-muted); flex-shrink: 0; }

.gh-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  flex: 1;
  transition: var(--t);
}
.gh-name:hover { text-decoration: underline; }

.gh-stars {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.gh-stars ion-icon { font-size: 13px; color: #d97706; }

.gh-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
  flex: 1;
}

.gh-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.gh-topics { display: flex; gap: 5px; flex-wrap: wrap; }

.gh-topic {
  font-size: 10px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 7px;
  border-radius: 20px;
}

.gh-lang {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.gh-lang-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ============================================================
   T7: BLOG POSTS
   ============================================================ */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.blog-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--t);
}

.blog-card:hover { border-color: var(--primary); box-shadow: 0 6px 20px rgba(26,86,219,0.07); transform: translateY(-2px); }

.blog-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.blog-tags { display: flex; gap: 5px; flex-wrap: wrap; }

.blog-tag {
  font-size: 10px;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 2px 8px;
  border-radius: 20px;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  color: var(--text-light);
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.blog-meta span { display: flex; align-items: center; gap: 3px; }
.blog-meta ion-icon { font-size: 12px; }

.blog-title {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--text-heading);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.blog-excerpt {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

.blog-read-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  transition: var(--t);
}
.blog-read-link ion-icon { font-size: 14px; transition: transform var(--t); }
.blog-read-link:hover { opacity: 0.75; }
.blog-read-link:hover ion-icon { transform: translateX(3px); }

.blog-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--gray-100);
  flex-wrap: wrap;
}

.blog-platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 700;
  color: #0077b5;
  background: #e8f4fb;
  border: 1px solid rgba(0,119,181,0.2);
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}
.blog-platform-badge ion-icon { font-size: 12px; }

/* ============================================================
   T8: SKILL CATEGORIES
   ============================================================ */
.skill-categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.skill-cat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--t);
}

.skill-cat-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); transform: translateY(-1px); }

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 2px solid;
}

.skill-cat-icon {
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.skill-cat-title {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.skill-cat-items {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding: 12px 14px 14px;
}

.skill-cat-item {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--gray-50);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 20px;
  transition: var(--t);
}

.skill-cat-item:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* ============================================================
   T9: CONTACT IMPROVEMENTS
   ============================================================ */
.contact-cta-banner {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-light) 100%);
  border: 1px solid rgba(26,86,219,0.15);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.contact-cta-text h3 {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-heading);
  margin-bottom: 6px;
}

.contact-cta-text p {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 460px;
  line-height: 1.65;
}

.contact-cta-links { display: flex; gap: 10px; flex-wrap: wrap; flex-shrink: 0; }

.contact-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--t);
}

.contact-cta-linkedin {
  background: #0077b5;
  color: var(--white);
}
.contact-cta-linkedin:hover { background: #005f8e; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(0,119,181,0.35); }

.contact-cta-email {
  background: var(--white);
  color: var(--text-body);
  border: 1.5px solid var(--border);
}
.contact-cta-email:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }

/* ============================================================
   RESPONSIVE ADDITIONS
   ============================================================ */
@media (max-width: 1024px) {
  .ai-systems-grid { grid-template-columns: repeat(2, 1fr); }
  .skill-categories-grid { grid-template-columns: repeat(2, 1fr); }
  .github-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-section { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
}

@media (max-width: 860px) {
  .demos-grid { grid-template-columns: repeat(2, 1fr); }
  .case-studies-grid { grid-template-columns: 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
  .contact-cta-banner { flex-direction: column; }
  .hero-title { font-size: 32px; }
}

@media (max-width: 560px) {
  .ai-systems-grid { grid-template-columns: 1fr; }
  .demos-grid { grid-template-columns: 1fr; }
  .github-grid { grid-template-columns: 1fr; }
  .skill-categories-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 12px; }
  .hero-stat-div { display: none; }
}

.sidebar-visitor-count {
  padding: 12px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
}

.sidebar-visitor-count img {
  height: 20px;
  border-radius: 4px;
}
/* ============================================================
   OPEN SOURCE CONTRIBUTIONS
   ============================================================ */

/* Stats bar */
.oss-stats-row {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 28px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  justify-content: center;
}
.oss-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 0 28px;
}
.oss-stat-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}
.oss-stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.oss-stat-div {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Grid */
.oss-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* Card */
.oss-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--t), border-color var(--t), transform var(--t);
  position: relative;
  overflow: hidden;
}
.oss-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
  opacity: 0;
  transition: opacity var(--t);
}
.oss-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.oss-card:hover::before { opacity: 1; }

.oss-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}
.oss-card-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.oss-card-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-heading);
  font-family: 'Courier New', monospace;
}
.oss-badge {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
.oss-badge-pypi {
  background: #fff4e5;
  color: #b45309;
  border: 1px solid #fde68a;
}
.oss-badge-platform {
  background: var(--success-light);
  color: var(--success);
  border: 1px solid #6ee7b7;
}
.oss-status-pill {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}
.oss-status-pill::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
}
.oss-status-stable { background: var(--success-light); color: var(--success); }
.oss-status-stable::before { background: var(--success); }
.oss-status-beta { background: #fff7ed; color: #c2410c; }
.oss-status-beta::before { background: #f97316; }
.oss-status-live { background: #eff6ff; color: var(--primary); }
.oss-status-live::before { background: var(--primary); animation: pulse 1.5s infinite; }

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

.oss-version {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  background: var(--gray-100);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.oss-desc {
  font-size: 0.875rem;
  color: var(--text-body);
  line-height: 1.6;
  flex: 1;
}

.oss-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.oss-tag {
  font-size: 0.68rem;
  padding: 3px 8px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 100px;
  font-weight: 500;
}

.oss-install {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--gray-900);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  color: #86efac;
  position: relative;
}
.oss-install-prompt { color: #94a3b8; margin-right: 4px; }
.oss-copy-btn {
  position: absolute;
  right: 10px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-400);
  display: flex;
  align-items: center;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--t), background var(--t);
  font-size: 14px;
}
.oss-copy-btn:hover { color: var(--white); background: var(--gray-700); }

.oss-card-footer {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 2px;
}
.oss-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-md);
  transition: all var(--t);
  border: 1px solid transparent;
  text-decoration: none;
}
.oss-link-pypi {
  background: #fff4e5;
  color: #b45309;
  border-color: #fde68a;
}
.oss-link-pypi:hover { background: #fde68a; color: #92400e; }
.oss-link-github {
  background: var(--gray-100);
  color: var(--text-heading);
  border-color: var(--border);
}
.oss-link-github:hover { background: var(--gray-900); color: var(--white); border-color: var(--gray-900); }
.oss-link-live {
  background: var(--primary-light);
  color: var(--primary);
  border-color: #bfdbfe;
}
.oss-link-live:hover { background: var(--primary); color: var(--white); }

@media (max-width: 600px) {
  .oss-grid { grid-template-columns: 1fr; }
  .oss-stats-row { padding: 14px 10px; gap: 4px; }
  .oss-stat { padding: 0 12px; }
  .oss-stat-div { height: 28px; }
}