/* ============================================================
   P-TC | Persyn-Technical Consultancy — Shared Stylesheet
   Clean minimal, strong accent, professional
   ============================================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@300;400;500;600&family=DM+Serif+Display&display=swap');

/* --- Variables --- */
:root {
  --c-bg:        #F8F7F4;
  --c-surface:   #FFFFFF;
  --c-text:      #1A1A1A;
  --c-muted:     #6B6B6B;
  --c-border:    #E4E2DC;
  --c-accent:    #1B4FBF;
  --c-accent-lt: #EAF0FC;
  --c-accent-dk: #0F3291;
  --font-head:   'DM Serif Display', serif;
  --font-body:   'DM Sans', sans-serif;
  --radius:      10px;
  --shadow:      0 2px 16px rgba(0,0,0,0.07);
  --max-w:       1100px;
  --nav-h:       68px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { display: block; max-width: 100%; }

/* --- Layout helpers --- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 28px; }
.section { padding: 80px 0; }
.section--alt { background: var(--c-surface); }

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(248,247,244,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  color: var(--c-text);
  letter-spacing: 0.02em;
  text-decoration: none;
}
.nav__brand:hover { text-decoration: none; }
.nav__logo {
  height: 42px;
  width: auto;
}
.nav__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.nav__brand-short {
  display: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: 0.04em;
}
.nav__brand-full {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav__links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-muted);
  padding: 6px 14px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
}
.nav__links a:hover,
.nav__links a.active {
  color: var(--c-accent);
  background: var(--c-accent-lt);
}
.nav__right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-toggle {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-muted);
  background: var(--c-border);
  border: none;
  border-radius: 5px;
  padding: 5px 10px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.lang-toggle:hover { background: var(--c-accent-lt); color: var(--c-accent); }

/* Mobile nav toggle */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Hero --- */
.hero {
  padding: 90px 0 80px;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -60px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, var(--c-accent-lt) 0%, transparent 70%);
  pointer-events: none;
}
.hero__eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 16px;
}
.hero__title {
  font-family: var(--font-head);
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.15;
  color: var(--c-text);
  max-width: 680px;
  margin-bottom: 20px;
}
.hero__sub {
  font-size: 18px;
  color: var(--c-muted);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.6;
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all 0.18s;
  text-decoration: none;
  white-space: nowrap;
}
.btn--primary {
  background: var(--c-accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--c-accent-dk);
  text-decoration: none;
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(27,79,191,0.25);
}
.btn--ghost {
  background: transparent;
  color: var(--c-accent);
  border: 1.5px solid var(--c-accent);
}
.btn--ghost:hover {
  background: var(--c-accent-lt);
  text-decoration: none;
  transform: translateY(-1px);
}

/* --- Section headings --- */
.section-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 10px;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(26px, 3.5vw, 38px);
  line-height: 1.2;
  color: var(--c-text);
  margin-bottom: 14px;
}
.section-sub {
  font-size: 16px;
  color: var(--c-muted);
  max-width: 560px;
  margin-bottom: 48px;
}

/* --- Skills grid --- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.skill-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px 26px;
  transition: box-shadow 0.18s, transform 0.18s;
}
.skill-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.skill-card__icon {
  width: 42px;
  height: 42px;
  background: var(--c-accent-lt);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 20px;
}
.skill-card__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 8px;
}
.skill-card__desc {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.6;
}

/* --- Tags / pills --- */
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag {
  font-size: 12px;
  font-weight: 500;
  background: var(--c-accent-lt);
  color: var(--c-accent);
  padding: 4px 10px;
  border-radius: 20px;
}

/* --- Stats row --- */
.stats-row {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  padding: 40px 0;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  margin: 48px 0;
  justify-content: space-between;
}
.stat__number {
  font-family: var(--font-head);
  font-size: 42px;
  color: var(--c-accent);
  line-height: 1;
  margin-bottom: 4px;
}
.stat__label {
  font-size: 13px;
  color: var(--c-muted);
  font-weight: 500;
}

/* --- About page --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.about-text p { color: var(--c-muted); margin-bottom: 18px; font-size: 15px; }
.about-text p strong { color: var(--c-text); font-weight: 600; }

.timeline { list-style: none; position: relative; }
.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--c-border);
}
.timeline li {
  position: relative;
  padding: 0 0 32px 34px;
}
.timeline li::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 2px solid var(--c-bg);
  box-shadow: 0 0 0 2px var(--c-accent);
}
.timeline__year {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 3px;
}
.timeline__role {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 3px;
}
.timeline__company {
  font-size: 13px;
  color: var(--c-muted);
}
.timeline__detail {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.55;
  margin-top: 5px;
  opacity: 0.85;
}

/* --- Projects grid --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}
.project-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.18s, transform 0.18s;
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.project-card--featured {
  border-color: var(--c-accent);
  border-width: 1.5px;
}
.project-card--featured .project-card__img--placeholder {
  background: linear-gradient(135deg, var(--c-accent-lt) 0%, rgba(27,79,191,0.12) 100%);
}
.project-card__img--robot {
  font-size: 52px;
}
.project-card__img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--c-accent-lt);
}
.project-card__img--placeholder {
  height: 180px;
  background: linear-gradient(135deg, var(--c-accent-lt) 0%, var(--c-border) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
}
.project-card__body { padding: 22px 22px 26px; flex: 1; display: flex; flex-direction: column; }
.project-card__cat {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: 8px;
}
.project-card__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 8px;
}
.project-card__desc {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.6;
  flex: 1;
}

/* --- Contact page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 22px;
}
.contact-info__icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: var(--c-accent-lt);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.contact-info__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 2px;
}
.contact-info__value {
  font-size: 15px;
  color: var(--c-text);
  font-weight: 500;
}
.contact-info__value a { color: var(--c-accent); }
.contact-info__maplink {
  color: var(--c-text) !important;
  text-decoration: none;
  border-bottom: 1px dashed var(--c-border);
  transition: border-color 0.15s;
}
.contact-info__maplink:hover {
  border-color: var(--c-accent);
  color: var(--c-accent) !important;
  text-decoration: none;
}

.contact-map {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-border);
  height: 280px;
}
.contact-map iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--c-border);
  padding: 32px 0;
  background: var(--c-surface);
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__copy {
  font-size: 13px;
  color: var(--c-muted);
}
.footer__links {
  display: flex;
  gap: 20px;
  list-style: none;
}
.footer__links a {
  font-size: 13px;
  color: var(--c-muted);
}
.footer__links a:hover { color: var(--c-accent); text-decoration: none; }

/* --- Availability badge --- */
.availability {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: #1a6b3a;
  background: #eaf6ee;
  border: 1px solid #b6e0c4;
  border-radius: 20px;
  padding: 5px 14px 5px 10px;
  margin-bottom: 24px;
}
.availability__dot {
  width: 8px;
  height: 8px;
  background: #28a85a;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

/* --- Language toggle logic --- */
[data-lang="en"] { display: none; }
body.lang-en [data-lang="en"] { display: revert; }
body.lang-en [data-lang="nl"] { display: none; }

/* --- Software philosophy section --- */
.software-philosophy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-top: 8px;
}
.software-philosophy__text p {
  color: var(--c-muted);
  font-size: 15px;
  margin-bottom: 18px;
  line-height: 1.7;
}
.software-philosophy__text p strong {
  color: var(--c-text);
  font-weight: 600;
}
.software-philosophy__pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.pillar {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 20px 18px;
}
.pillar__icon {
  font-size: 22px;
  margin-bottom: 10px;
}
.pillar__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 6px;
}
.pillar__desc {
  font-size: 13px;
  color: var(--c-muted);
  line-height: 1.55;
}

/* --- Responsive --- */

/* Tablet (≤ 991px) */
@media (max-width: 991px) {
  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
  .stats-row {
    gap: 32px;
  }
  .stat__number {
    font-size: 34px;
  }
}

/* Mobile (≤ 768px) */
@media (max-width: 768px) {
  /* Nav */
  .nav__links { display: none; flex-direction: column; }
  .nav__brand-full { display: none; }
  .nav__brand-short { display: block; }
  .nav__links.open {
    display: flex;
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    padding: 12px 28px 20px;
    box-shadow: var(--shadow);
    z-index: 99;
  }
  .nav__links li { width: 100%; }
  .nav__links a { display: block; padding: 12px 8px; font-size: 15px; }
  .nav__hamburger { display: flex; }

  /* Layout */
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .software-philosophy { grid-template-columns: 1fr; }
  .software-philosophy__pillars { grid-template-columns: 1fr 1fr; }
  .hero { padding: 52px 0 44px; }
  .hero::after { display: none; }
  .section { padding: 56px 0; }
  .container { padding: 0 18px; }

  /* Hero */
  .hero__title { font-size: clamp(28px, 7vw, 42px); }
  .hero__sub { font-size: 16px; }
  .hero__actions { flex-direction: column; gap: 10px; }
  .hero__actions .btn { width: 100%; justify-content: center; padding: 14px 24px; }

  /* Stats */
  .stats-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px 16px;
    padding: 28px 0;
    margin: 32px 0;
  }
  .stat__number { font-size: 32px; }
  .stat__label { font-size: 12px; }

  /* Skills grid */
  .skills-grid { grid-template-columns: 1fr; gap: 14px; }
  .skill-card { padding: 22px 18px; }

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

  /* Section headings */
  .section-title { font-size: clamp(22px, 5vw, 30px); }

  /* Timeline */
  .timeline::before { left: 8px; }
  .timeline li { padding-left: 28px; padding-bottom: 24px; }
  .timeline li::before { left: 3px; width: 9px; height: 9px; }
  .timeline__detail { font-size: 12px; }

  /* Contact */
  .contact-map { height: 220px; }
  .contact-info__item { gap: 12px; }
  .contact-info__icon { width: 36px; height: 36px; min-width: 36px; font-size: 16px; }
  .contact-info__value { font-size: 14px; }
  /* Make phone/email/address links easy to tap */
  .contact-info__value a {
    display: inline-block;
    padding: 2px 0;
    min-height: 36px;
    line-height: 36px;
  }

  /* Footer */
  .footer__inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer__links { flex-wrap: wrap; gap: 12px; }

  /* Pillar grid */
  .software-philosophy__pillars { grid-template-columns: 1fr; }

  /* Tags */
  .tags { gap: 6px; }
  .tag { font-size: 11px; padding: 3px 9px; }

  /* Buttons */
  .btn { font-size: 14px; padding: 12px 20px; }
}

/* Small phones (≤ 480px) */
@media (max-width: 480px) {
  .hero__title { font-size: clamp(24px, 8vw, 34px); }
  .stats-row { grid-template-columns: 1fr 1fr; gap: 20px; }
  .stat__number { font-size: 28px; }
  .nav__logo { height: 30px; }
  .section-title { font-size: clamp(20px, 6vw, 26px); }
  .software-philosophy__pillars { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
}