/* =========================================================
   SWISS SIGNAL PORTFOLIO THEME
   clean editorial layout, matte surfaces, controlled cyber accent
   ========================================================= */

:root {
  color-scheme: dark;
  --font-main: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 6px;
  --nav-h: 72px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

body.dark {
  --bg: #050608;
  --paper: #0b0d10;
  --panel: #10141a;
  --panel-2: #161b22;
  --text: #f4f6f5;
  --muted: #98a1aa;
  --line: rgba(244,246,245,.13);
  --line-strong: rgba(244,246,245,.25);
  --accent: #b7ff3c;
  --accent-soft: rgba(183,255,60,.12);
  --blue: #7aa7ff;
  --red: #ff6b6b;
  --shadow: rgba(0,0,0,.45);
}

body.light {
  color-scheme: light;
  --bg: #f2f3f1;
  --paper: #fbfbf8;
  --panel: #ffffff;
  --panel-2: #ecefeb;
  --text: #101214;
  --muted: #626b72;
  --line: rgba(16,18,20,.12);
  --line-strong: rgba(16,18,20,.23);
  --accent: #4f7d00;
  --accent-soft: rgba(79,125,0,.12);
  --blue: #255aa8;
  --red: #b93434;
  --shadow: rgba(16,18,20,.12);
}

* { box-sizing: border-box; }

html,
body {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--text);
  background: var(--bg);
  overflow-y: auto;
  scroll-snap-type: y proximity;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0 7%, var(--line) 7% calc(7% + 1px), transparent calc(7% + 1px) 93%, var(--line) 93% calc(93% + 1px), transparent calc(93% + 1px)),
    linear-gradient(180deg, rgba(255,255,255,.04), transparent 32rem),
    radial-gradient(circle at 74% 12%, var(--accent-soft), transparent 24rem);
}

body.light::before {
  background:
    linear-gradient(90deg, transparent 0 7%, var(--line) 7% calc(7% + 1px), transparent calc(7% + 1px) 93%, var(--line) 93% calc(93% + 1px), transparent calc(93% + 1px)),
    linear-gradient(180deg, rgba(16,18,20,.035), transparent 34rem),
    radial-gradient(circle at 74% 12%, var(--accent-soft), transparent 24rem);
}

body::after {
  content: "";
  position: fixed;
  right: 7%;
  top: 0;
  bottom: 0;
  width: 1px;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(transparent, var(--accent), transparent);
  opacity: .45;
}

::selection {
  background: var(--accent);
  color: var(--bg);
}

h1, h2, h3, h4, h5, h6, p, li, small, span:not(.section-dots span) {
  color: var(--text);
}

.text-muted { color: var(--muted) !important; }

/* ================= NAV ================= */
.navbar {
  min-height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.navbar-brand {
  color: var(--text) !important;
  font-size: .95rem;
  font-weight: 900;
  letter-spacing: .18em;
}

.navbar-brand::before {
  content: "";
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 10px;
  background: var(--accent);
  vertical-align: 1px;
}

.navbar-toggler {
  border: 1px solid var(--line-strong);
  border-radius: 0;
  box-shadow: none !important;
}

body.dark .navbar-toggler-icon { filter: invert(1); }

.nav-link {
  position: relative;
  color: var(--muted) !important;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
  transition: color .2s ease;
}

.nav-link:hover,
.nav-link.active { color: var(--text) !important; }

.nav-link::after {
  content: "";
  position: absolute;
  left: .5rem;
  right: .5rem;
  bottom: .15rem;
  height: 5px;
  background: var(--accent);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .2s ease, transform .2s var(--ease);
}

.nav-link:hover::after,
.nav-link.active::after {
  opacity: .85;
  transform: translateY(0);
}

.theme-toggle {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}

.theme-toggle:hover {
  background: var(--accent);
  color: var(--bg);
}

/* ================= SECTIONS ================= */
.section {
  min-height: 100svh;
  width: 100%;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 56px;
  position: relative;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease, transform .55s var(--ease);
  scroll-snap-align: start;
}

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

.section .container {
  max-width: 1160px;
}

.section-title {
  margin: 0 0 42px;
  text-align: left;
  color: var(--text);
  font-size: clamp(2.4rem, 6.3vw, 6.8rem);
  font-weight: 900;
  line-height: .88;
  letter-spacing: 0;
}

.section-title::after {
  content: "";
  display: block;
  width: clamp(70px, 12vw, 150px);
  height: 8px;
  margin-top: 20px;
  background: var(--accent);
}

.content h3,
.section .container > h3,
.hero h4 {
  max-width: 860px;
  margin-inline: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.55vw, 1.22rem);
  font-weight: 520;
  line-height: 1.75;
}

/* ================= HERO ================= */
.hero .container { text-align: left !important; }

.hero-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(170px, 240px);
  gap: clamp(30px, 6vw, 74px);
  align-items: end;
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(28px, 5vw, 64px) 0 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-align: left;
}

.hero-card::before {
  content: "Available for security operations, analysis, and infrastructure defense";
  grid-column: 1 / -1;
  width: fit-content;
  max-width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  color: var(--accent);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .1em;
  line-height: 1.5;
  text-transform: uppercase;
}

.hero-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -34px;
  height: 1px;
  background: var(--line-strong);
}

.hero img {
  grid-column: 2;
  grid-row: 2 / span 3;
  width: 100%;
  max-width: 240px;
  aspect-ratio: 1;
  height: auto;
  object-fit: cover;
  border-radius: 0;
  border: 1px solid var(--line-strong);
  filter: grayscale(.12) contrast(1.08);
  box-shadow: 18px 18px 0 var(--panel-2);
  justify-self: end;
}

.hero h1 {
  grid-column: 1;
  margin: 0;
  color: var(--text);
  font-size: clamp(4rem, 11vw, 10rem);
  font-weight: 900;
  line-height: .78;
  letter-spacing: -.04em;
  max-width: 900px;
}

.role {
  grid-column: 1;
  display: inline-flex;
  width: fit-content;
  max-width: 100%;
  margin: 28px 0 0;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  color: var(--text);
  font-size: .8rem;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.desc {
  grid-column: 1 / -1;
  margin: 22px 0 0;
  max-width: 940px;
}

/* ================= SKILLS ================= */
.row.g-4 { --bs-gutter-x: 1rem; --bs-gutter-y: 1rem; }

.glass-card,
.experience-card,
.cert-item,
.contact-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 0;
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  box-shadow: none;
  transition: transform .22s var(--ease), border-color .22s ease, background .22s ease;
}

.glass-card:hover,
.experience-card:hover,
.cert-item:hover,
.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  background: var(--panel-2);
}

.glass-card {
  min-height: 220px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
  font-size: clamp(1.1rem, 1.8vw, 1.38rem);
  font-weight: 900;
  line-height: 1.05;
}

.glass-card::before {
  content: "";
  width: 12px;
  height: 12px;
  margin-bottom: 28px;
  background: var(--accent);
}

.glass-card small {
  display: block;
  margin-top: 18px;
  color: var(--muted);
  font-size: .92rem;
  font-weight: 520;
  line-height: 1.55;
}

/* ================= PROJECTS / CERTS ================= */
.experience-grid,
.cert-list,
.contact-wrap {
  max-width: none;
  margin: 0;
  display: grid;
  gap: 12px;
}

.experience-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.experience-card,
.cert-item {
  padding: 24px;
  color: var(--text);
  font-size: clamp(.98rem, 1.25vw, 1.08rem);
  font-weight: 650;
  line-height: 1.62;
}

.experience-card::before,
.cert-item::before {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  margin-bottom: 18px;
  background: var(--accent);
}

.cert-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cert-item span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* ================= CONTACT ================= */
.contact-wrap {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.contact-card {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 16px;
  padding: 18px;
  text-decoration: none;
  color: var(--text);
}

.contact-card:first-child { grid-column: 1 / -1; }

.contact-ico {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  color: transparent;
  font-size: 0;
  background: var(--paper);
}

.contact-ico::before {
  color: var(--accent);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .08em;
}

.contact-card:nth-child(1) .contact-ico::before { content: "@"; }
.contact-card:nth-child(2) .contact-ico::before { content: "LDN"; }
.contact-card:nth-child(3) .contact-ico::before { content: "NUM"; }
.contact-card:nth-child(4) .contact-ico::before { content: "GIT"; }
.contact-card:nth-child(5) .contact-ico::before { content: "IG"; }

.contact-label {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: .74rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.contact-value {
  color: var(--text);
  font-size: clamp(.98rem, 2vw, 1.15rem);
  font-weight: 850;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.contact-arrow {
  color: transparent;
  font-size: 0;
}

.contact-arrow::before {
  content: "+";
  color: var(--accent);
  font-size: 1.4rem;
  font-weight: 900;
}

/* ================= DOTS / CV / FOOTER ================= */
.section-dots {
  position: fixed;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.section-dots span {
  width: 8px;
  height: 22px;
  display: block;
  border: 1px solid var(--line-strong);
  background: transparent;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease, height .2s var(--ease);
}

.section-dots span:hover,
.section-dots span.active {
  height: 34px;
  background: var(--accent);
  border-color: var(--accent);
}

.cv-btn {
  position: fixed;
  left: 24px;
  bottom: 24px;
  z-index: 50;
  min-height: 46px;
  max-width: calc(100vw - 48px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 0;
  background: var(--accent);
  color: var(--bg);
  font-weight: 900;
  text-decoration: none;
  transition: transform .22s var(--ease), background .22s ease, color .22s ease;
}

.cv-btn:hover {
  transform: translateY(-3px);
  background: transparent;
  color: var(--accent);
}

footer {
  min-height: auto;
  padding: 18px 0;
  text-align: center;
  color: var(--muted);
  background: transparent;
  scroll-snap-align: none;
}

/* ================= RESPONSIVE ================= */
@media (max-width: 991px) {
  .navbar-collapse {
    margin-top: 12px;
    padding: 12px;
    border: 1px solid var(--line);
    background: var(--panel);
  }

  .nav-link { padding: 11px 4px; }

  .hero-card,
  .experience-grid,
  .cert-list,
  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .hero img {
    grid-column: 1;
    grid-row: auto;
    justify-self: start;
    max-width: 180px;
  }

  .role,
  .desc,
  .hero h1 { grid-column: 1; }
}

@media (max-width: 768px) {
  body { scroll-snap-type: none; }

  body::before {
    background:
      linear-gradient(180deg, rgba(255,255,255,.04), transparent 28rem),
      radial-gradient(circle at 78% 6%, var(--accent-soft), transparent 18rem);
  }

  .section {
    min-height: auto;
    padding: 104px 0 54px;
  }

  .hero { min-height: 100svh; }

  .hero h1 {
    font-size: clamp(3.2rem, 18vw, 5.2rem);
    letter-spacing: -.05em;
  }

  .section-title {
    font-size: clamp(2.5rem, 15vw, 4.5rem);
  }

  .glass-card { min-height: 0; }

  .section-dots { display: none; }

  .contact-card:first-child { grid-column: auto; }

  .cv-btn {
    left: 14px;
    bottom: 14px;
    min-height: 43px;
    padding-inline: 14px;
    font-size: .9rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}