/* ── DESIGN TOKENS ──────────────────────────────────────────────── */
:root {
  --ms-blue:       #2079C7;
  --ms-blue-dark:  #1558a0;
  --ms-blue-light: #4d9de0;
  --ms-dark:       #0f1724;
  --ms-dark-2:     #162233;
  --ms-dark-card:  #1a2b3c;
  --ms-dark-border:rgba(255,255,255,.10);
  --ms-gray-100:   #f4f7fb;
  --ms-gray-200:   #e8edf4;
  --ms-gray-600:   #6b7280;
  --ms-text:       #1a2332;
  --ms-text-muted: #6b7280;
  --ms-white:      #ffffff;

  --ms-radius:     12px;
  --ms-radius-sm:  8px;
  --ms-transition: .25s ease;
  --ms-font:       'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--ms-font);
  color: var(--ms-text);
  background: var(--ms-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { text-decoration: none; }

/* ── NAV ────────────────────────────────────────────────────────── */
#ms-nav {
  padding: 18px 0;
  transition: background var(--ms-transition), box-shadow var(--ms-transition), padding var(--ms-transition);
  background: transparent;
  border-bottom: 1px solid transparent;
}

#ms-nav.scrolled {
  background: var(--ms-dark);
  box-shadow: 0 2px 20px rgba(0,0,0,.4);
  padding: 12px 0;
  border-bottom-color: var(--ms-dark-border);
}

.ms-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ms-white) !important;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.ms-brand:hover { opacity: .85; }
.ms-brand-img  { height: 32px; object-fit: contain; }
.ms-brand-name { color: var(--ms-white); }

#navbarMain .nav-link {
  color: rgba(255,255,255,.8);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: var(--ms-radius-sm);
  transition: color var(--ms-transition), background var(--ms-transition);
}
#navbarMain .nav-link:hover { color: var(--ms-white); background: rgba(255,255,255,.08); }

.ms-resume-btn {
  color: var(--ms-blue-light) !important;
  border: 1px solid rgba(77,157,224,.4) !important;
}
.ms-resume-btn:hover {
  background: rgba(77,157,224,.12) !important;
  color: var(--ms-white) !important;
}

.navbar-toggler {
  border-color: rgba(255,255,255,.3);
  padding: 4px 8px;
}
.navbar-toggler-icon { filter: invert(1); }

/* ── HERO ───────────────────────────────────────────────────────── */
.ms-hero {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(150deg, var(--ms-dark) 0%, var(--ms-dark-2) 60%, #0d2240 100%);
  color: var(--ms-white);
  padding: 120px 0 80px;
  overflow: hidden;
}

.ms-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 110%, rgba(32,121,199,.18) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 30% -10%, rgba(77,157,224,.12) 0%, transparent 60%);
  pointer-events: none;
}

.ms-hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ms-blue-light);
  margin-bottom: 16px;
}

.ms-hero-name {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 12px;
  color: var(--ms-white);
}

.ms-hero-title {
  font-size: clamp(1.2rem, 2.5vw, 1.7rem);
  font-weight: 400;
  color: rgba(255,255,255,.75);
  margin-bottom: 24px;
  line-height: 1.4;
}

.ms-hero-sub {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255,255,255,.6);
  max-width: 560px;
  margin-bottom: 36px;
}

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

.ms-btn-primary {
  background: var(--ms-blue);
  color: var(--ms-white) !important;
  border: none;
  padding: 13px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: background var(--ms-transition), transform var(--ms-transition);
}
.ms-btn-primary:hover { background: var(--ms-blue-dark); transform: translateY(-1px); }

.ms-btn-ghost {
  color: var(--ms-white) !important;
  border: 1px solid rgba(255,255,255,.3);
  padding: 13px 28px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 15px;
  transition: border-color var(--ms-transition), background var(--ms-transition);
}
.ms-btn-ghost:hover { border-color: rgba(255,255,255,.6); background: rgba(255,255,255,.06); }

.ms-hero-logo {
  width: 280px;
  opacity: .15;
  filter: brightness(10);
  animation: hero-float 6s ease-in-out infinite;
}

@keyframes hero-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

.ms-hero-scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2.5s ease-in-out infinite;
}
.ms-hero-scroll-hint a { color: rgba(255,255,255,.4); font-size: 22px; }
.ms-hero-scroll-hint a:hover { color: rgba(255,255,255,.7); }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── SECTIONS ───────────────────────────────────────────────────── */
.ms-section { padding: 100px 0; }

.ms-section-light { background: var(--ms-gray-100); }

.ms-section-dark {
  background: var(--ms-dark);
  color: var(--ms-white);
}

.ms-section-contact {
  background: var(--ms-dark-2);
  color: var(--ms-white);
}

.ms-section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ms-blue);
  margin-bottom: 12px;
}

.ms-section-dark .ms-section-label,
.ms-section-contact .ms-section-label { color: var(--ms-blue-light); }

.ms-section-heading {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 48px;
  color: inherit;
}

.ms-body-text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ms-text-muted);
  margin-bottom: 20px;
}

.ms-section-dark .ms-body-text,
.ms-section-contact .ms-body-text { color: rgba(255,255,255,.65); }

/* ── STATS GRID ─────────────────────────────────────────────────── */
.ms-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--ms-gray-200);
  border-radius: var(--ms-radius);
  overflow: hidden;
}

.ms-stat {
  background: var(--ms-white);
  padding: 28px 24px;
  text-align: center;
}

.ms-stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--ms-blue);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 6px;
}

.ms-stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--ms-text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

/* ── TIMELINE ───────────────────────────────────────────────────── */
.ms-timeline {
  position: relative;
  padding-left: 28px;
}

.ms-timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--ms-blue) 0%, rgba(32,121,199,.15) 100%);
}

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

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

.ms-timeline-marker {
  position: absolute;
  left: -34px;
  top: 20px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ms-blue);
  border: 2px solid var(--ms-dark);
  box-shadow: 0 0 0 3px rgba(32,121,199,.3);
  transition: box-shadow var(--ms-transition);
}

.ms-timeline-item:hover .ms-timeline-marker {
  box-shadow: 0 0 0 5px rgba(32,121,199,.25);
}

.ms-timeline-content {
  background: var(--ms-dark-card);
  border: 1px solid var(--ms-dark-border);
  border-radius: var(--ms-radius);
  overflow: hidden;
  transition: border-color var(--ms-transition);
}

.ms-timeline-content:hover { border-color: rgba(32,121,199,.35); }

.ms-timeline-header {
  padding: 24px 28px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

.ms-tl-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 6px;
}

.ms-tl-company {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ms-blue-light);
}

.ms-tl-dates {
  font-size: 13px;
  color: rgba(255,255,255,.4);
  font-weight: 400;
}

.ms-tl-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ms-white);
  margin-bottom: 4px;
  line-height: 1.3;
}

.ms-tl-location {
  font-size: 13px;
  color: rgba(255,255,255,.4);
  margin-bottom: 14px;
}

.ms-tl-toggle {
  font-size: 13px;
  font-weight: 500;
  color: var(--ms-blue-light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.ms-tl-toggle i { font-size: 15px; transition: transform var(--ms-transition); }
.ms-timeline-item.open .ms-tl-toggle i { transform: rotate(45deg); }

.ms-timeline-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s cubic-bezier(.4,0,.2,1), padding .35s ease;
  padding: 0 28px;
}

.ms-timeline-item.open .ms-timeline-body {
  max-height: 600px;
  padding: 0 28px 24px;
}

.ms-bullets {
  margin: 0;
  padding-left: 20px;
}

.ms-bullets li {
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(255,255,255,.65);
  margin-bottom: 8px;
}

.ms-bullets li::marker { color: var(--ms-blue-light); }

/* ── SKILL CARDS ────────────────────────────────────────────────── */
.ms-skill-card {
  background: var(--ms-white);
  border: 1px solid var(--ms-gray-200);
  border-radius: var(--ms-radius);
  padding: 28px 24px;
  height: 100%;
  transition: border-color var(--ms-transition), transform var(--ms-transition), box-shadow var(--ms-transition);
}

.ms-skill-card:hover {
  border-color: rgba(32,121,199,.3);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(32,121,199,.08);
}

.ms-skill-icon {
  font-size: 28px;
  color: var(--ms-blue);
  margin-bottom: 14px;
  line-height: 1;
}

.ms-skill-category {
  font-size: 14px;
  font-weight: 700;
  color: var(--ms-text);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 14px;
}

.ms-skill-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ms-skill-list li {
  font-size: 14px;
  color: var(--ms-text-muted);
  padding: 5px 0;
  border-bottom: 1px solid var(--ms-gray-200);
  line-height: 1.5;
}

.ms-skill-list li:last-child { border-bottom: none; }

/* ── PROJECT CARDS ──────────────────────────────────────────────── */
.ms-project-card {
  background: var(--ms-dark-card);
  border: 1px solid var(--ms-dark-border);
  border-radius: var(--ms-radius);
  padding: 28px 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: border-color var(--ms-transition), transform var(--ms-transition);
}

.ms-project-card:hover {
  border-color: rgba(32,121,199,.4);
  transform: translateY(-3px);
}

.ms-project-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ms-blue-light);
  margin-bottom: 10px;
}

.ms-project-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ms-white);
  margin-bottom: 10px;
}

.ms-project-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,.55);
  flex: 1;
  margin-bottom: 18px;
}

.ms-project-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--ms-blue-light);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--ms-transition);
}
.ms-project-link:hover { color: var(--ms-white); }

.ms-project-link-private {
  color: rgba(255,255,255,.3) !important;
  cursor: default;
}

/* ── CONTACT ────────────────────────────────────────────────────── */
.ms-contact-sub {
  max-width: 520px;
  margin-bottom: 48px;
}

.ms-contact-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ms-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 16px;
  font-weight: 500;
  color: rgba(255,255,255,.75);
  transition: color var(--ms-transition);
}

.ms-contact-item i {
  font-size: 20px;
  color: var(--ms-blue-light);
  width: 28px;
  text-align: center;
  flex-shrink: 0;
}

.ms-contact-item:hover { color: var(--ms-white); }

/* ── FOOTER ─────────────────────────────────────────────────────── */
.ms-footer {
  background: var(--ms-dark);
  padding: 28px 0;
  border-top: 1px solid var(--ms-dark-border);
}

.ms-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.ms-footer-logo { height: 24px; opacity: .5; filter: brightness(10); }

.ms-footer-copy { font-size: 13px; color: rgba(255,255,255,.3); }

/* ── SCROLL REVEAL ──────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .55s ease, transform .55s ease;
}

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

/* ── RESPONSIVE ─────────────────────────────────────────────────── */
@media (max-width: 767px) {
  .ms-section { padding: 72px 0; }
  .ms-timeline { padding-left: 20px; }
  .ms-timeline-marker { left: -26px; }
  .ms-stat { padding: 20px 16px; }
  .ms-stat-number { font-size: 1.7rem; }
}