/* ==========================================================================
   45 Nord SEC — Stylesheet
   Aesthetic: Nordic-tech. Arctic night base, aurora accent, monospace tech labels.
   ========================================================================== */

:root {
  /* Color */
  --bg: #0b0f14;
  --bg-elev: #0f1520;
  --surface: #131a26;
  --surface-2: #1a2333;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8ecef;
  --text-dim: #9aa4b3;
  --text-mute: #5d6878;
  --accent: #5fd0d4;       /* aurora cyan */
  --accent-glow: rgba(95, 208, 212, 0.18);
  --accent-warm: #d4a25f;  /* amber, used sparingly */
  --danger: #e87171;
  --success: #7ec98f;

  /* Type */
  --font-display: 'Fraunces', 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'JetBrains Mono', ui-monospace, monospace;

  /* Layout */
  --container: 1200px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 4px;
  --radius-lg: 8px;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* Background grid texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.018) 1px, transparent 1px);
  background-size: 64px 64px;
  z-index: 0;
  mask-image: radial-gradient(ellipse at top, black 30%, transparent 80%);
}

/* Aurora glow at top */
body::after {
  content: '';
  position: fixed;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 1200px; height: 600px;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  opacity: 0.6;
}

main, header, footer, section { position: relative; z-index: 1; }

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-variation-settings: "opsz" 144, "SOFT" 50;
}
h1 { font-size: clamp(2.5rem, 6.5vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.5rem); letter-spacing: -0.025em; }
h3 { font-size: clamp(1.25rem, 1.8vw, 1.5rem); letter-spacing: -0.015em; font-variation-settings: "opsz" 36; }
h4 { font-size: 1.0625rem; letter-spacing: -0.01em; font-variation-settings: "opsz" 24; }
p { color: var(--text-dim); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.eyebrow::before {
  content: '';
  width: 8px; height: 1px;
  background: var(--accent);
}

.mono { font-family: var(--font-mono); font-size: 0.8125rem; letter-spacing: 0.02em; }

/* =========================================================================
   Top bar / coordinates strip
   ========================================================================= */
.topbar {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 15, 20, 0.6);
  backdrop-filter: blur(8px);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.625rem var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
}
.topbar-inner > div { display: flex; gap: 1.5rem; align-items: center; }
.topbar .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); display: inline-block; margin-right: 0.5rem; box-shadow: 0 0 8px var(--success); }
.topbar .lang a { color: var(--text-mute); transition: color 0.2s; }
.topbar .lang a:hover, .topbar .lang a.active { color: var(--accent); }
.topbar .lang span { color: var(--text-mute); opacity: 0.4; margin: 0 0.5rem; }

@media (max-width: 720px) {
  .topbar-inner > div:first-child .hide-sm { display: none; }
}

/* =========================================================================
   Navigation
   ========================================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: var(--text);
}
.brand-mark {
  width: 32px; height: 32px;
  border: 1px solid var(--accent);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--accent);
  letter-spacing: 0;
}
.brand-mark::before, .brand-mark::after {
  content: '';
  position: absolute;
  background: var(--accent);
}
.brand-mark::before { top: -3px; left: -3px; width: 6px; height: 1px; }
.brand-mark::after { top: -3px; left: -3px; width: 1px; height: 6px; }
.brand strong { font-weight: 400; color: var(--text); }
.brand em { color: var(--text-mute); font-style: normal; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; }

.nav-links {
  display: flex;
  list-style: none;
  padding: 0;
  gap: 2rem;
  align-items: center;
  font-size: 0.9375rem;
}
.nav-links a { color: var(--text-dim); transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  transition: all 0.2s;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.btn:hover {
  background: var(--accent);
  color: var(--bg);
  transform: translateY(-1px);
}
.btn.btn-solid {
  background: var(--accent);
  color: var(--bg);
}
.btn.btn-solid:hover {
  background: transparent;
  color: var(--accent);
}
.btn.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
}
.btn.btn-ghost:hover {
  background: var(--surface);
  border-color: var(--text-dim);
  color: var(--text);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  width: 40px; height: 40px;
  color: var(--text);
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 18px; height: 18px; }

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    padding: 1.5rem var(--gutter);
    gap: 1.25rem;
    align-items: flex-start;
  }
}

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  padding: clamp(4rem, 10vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: end;
}
@media (min-width: 960px) {
  .hero-grid { grid-template-columns: 1.4fr 1fr; gap: 5rem; }
}

.hero h1 {
  font-variation-settings: "opsz" 144, "SOFT" 50, "wght" 300;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
  font-variation-settings: "opsz" 144, "SOFT" 100;
}
.hero p.lead {
  font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
  color: var(--text-dim);
  max-width: 38ch;
  margin-top: 1.5rem;
  line-height: 1.55;
}
.hero-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 2.25rem;
  flex-wrap: wrap;
}

/* Hero side panel — technical signature */
.hero-side {
  padding: 1.5rem;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface) 0%, transparent 100%);
  border-radius: var(--radius-lg);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  position: relative;
  overflow: hidden;
}
.hero-side::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}
.hero-side .label {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-mute);
  font-size: 0.625rem;
  margin-bottom: 0.5rem;
}
.hero-side .value {
  color: var(--text);
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
}
.hero-side .value:last-child { margin-bottom: 0; }
.hero-side .accent { color: var(--accent); }

/* Hero corners */
.corner {
  position: absolute;
  width: 12px; height: 12px;
  border: 1px solid var(--accent);
  opacity: 0.5;
}
.corner.tl { top: 0; left: 0; border-right: none; border-bottom: none; }
.corner.tr { top: 0; right: 0; border-left: none; border-bottom: none; }
.corner.bl { bottom: 0; left: 0; border-right: none; border-top: none; }
.corner.br { bottom: 0; right: 0; border-left: none; border-top: none; }

/* =========================================================================
   Sections
   ========================================================================= */
.section {
  padding: clamp(4rem, 8vw, 7rem) 0;
  border-top: 1px solid var(--border);
}
.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  align-items: end;
}
@media (min-width: 880px) {
  .section-head { grid-template-columns: 1fr 1fr; gap: 4rem; }
}
.section-head .eyebrow { margin-bottom: 1rem; }
.section-head p { max-width: 50ch; }

/* =========================================================================
   Service cards
   ========================================================================= */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.service {
  background: var(--bg);
  padding: 2rem 1.75rem;
  position: relative;
  transition: background 0.3s;
}
.service:hover { background: var(--surface); }
.service .num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  color: var(--text-mute);
  margin-bottom: 1.5rem;
  display: block;
}
.service h3 {
  margin-bottom: 0.75rem;
  color: var(--text);
}
.service p {
  font-size: 0.9375rem;
  color: var(--text-dim);
  line-height: 1.6;
}
.service .icon {
  width: 32px; height: 32px;
  color: var(--accent);
  margin-bottom: 1.25rem;
  stroke-width: 1.25;
}

/* =========================================================================
   Solution grid (Microsoft 365)
   ========================================================================= */
.solutions {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.solution {
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
  transition: all 0.2s;
}
.solution:hover {
  border-color: var(--accent);
  background: var(--surface);
  transform: translateY(-2px);
}
.solution h4 {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.625rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.solution h4::before {
  content: '';
  width: 4px; height: 4px;
  background: var(--accent);
  display: inline-block;
}
.solution p { font-size: 0.875rem; line-height: 1.55; }

/* =========================================================================
   Stats / mission block
   ========================================================================= */
.mission {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 880px) {
  .mission { grid-template-columns: 1.2fr 1fr; gap: 4rem; }
}
.mission-text p {
  font-size: 1.125rem;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
  max-width: 60ch;
  line-height: 1.65;
}
.mission-text p:last-child { margin-bottom: 0; }

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
.stat {
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  padding: 1.5rem 1.25rem;
  background: var(--surface);
}
.stat .num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--text);
  font-variation-settings: "opsz" 96, "wght" 300;
}
.stat .label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-mute);
  margin-top: 0.625rem;
  display: block;
  line-height: 1.4;
}

/* =========================================================================
   Tools / CTA block
   ========================================================================= */
.tools {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1rem;
}
.tool {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  background: linear-gradient(135deg, var(--surface) 0%, var(--bg-elev) 100%);
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}
.tool:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}
.tool .tool-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.tool h3 { margin-bottom: 0.75rem; }
.tool p { font-size: 0.9375rem; margin-bottom: 1.5rem; flex-grow: 1; }
.tool .tool-link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.2s;
}
.tool:hover .tool-link { gap: 0.75rem; }

/* =========================================================================
   CTA strip
   ========================================================================= */
.cta-strip {
  padding: clamp(3rem, 6vw, 4.5rem) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 70%);
  text-align: center;
}
.cta-strip h2 {
  font-style: italic;
  margin-bottom: 1.5rem;
  font-variation-settings: "opsz" 144, "SOFT" 100, "wght" 300;
}
.cta-strip .eyebrow { justify-content: center; display: flex; margin-bottom: 1.5rem; }

/* =========================================================================
   FAQ
   ========================================================================= */
.faq { max-width: 880px; }
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  letter-spacing: -0.01em;
  color: var(--text);
  font-variation-settings: "opsz" 36;
  transition: color 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--accent); }
.faq-item summary::after {
  content: '+';
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--accent);
  font-weight: 300;
  transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .answer {
  padding: 0 0 1.5rem 0;
  color: var(--text-dim);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 70ch;
}
.faq-item .answer p { margin-bottom: 0.75rem; }
.faq-item .answer p:last-child { margin-bottom: 0; }

/* =========================================================================
   Contact / Footer
   ========================================================================= */
.contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 880px) {
  .contact { grid-template-columns: 1fr 1.2fr; gap: 4rem; }
}
.contact h2 { margin-bottom: 1rem; }
.contact-info {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-dim);
}
.contact-info strong { color: var(--text); font-weight: 500; }
.contact-info a { color: var(--accent); transition: opacity 0.2s; }
.contact-info a:hover { opacity: 0.7; }
.contact-block {
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}
.contact-block:last-child { border-bottom: none; }
.contact-block .k {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-mute);
  display: block;
  margin-bottom: 0.375rem;
}

footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  margin-top: 0;
}
.foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}
@media (min-width: 720px) {
  .foot { grid-template-columns: 2fr 1fr 1fr; gap: 3rem; }
}
.foot h5 {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-mute);
  margin-bottom: 1rem;
  font-weight: 500;
}
.foot ul { list-style: none; padding: 0; }
.foot li { margin-bottom: 0.625rem; font-size: 0.875rem; }
.foot a { color: var(--text-dim); transition: color 0.2s; }
.foot a:hover { color: var(--accent); }
.foot-meta {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-mute);
}

/* =========================================================================
   Reveal animation on scroll
   ========================================================================= */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Hero entry animation */
.hero h1, .hero p.lead, .hero-actions, .hero-side {
  opacity: 0;
  transform: translateY(20px);
  animation: rise 0.9s ease forwards;
}
.hero h1 { animation-delay: 0.05s; }
.hero p.lead { animation-delay: 0.2s; }
.hero-actions { animation-delay: 0.35s; }
.hero-side { animation-delay: 0.5s; }
@keyframes rise {
  to { opacity: 1; transform: translateY(0); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* Focus styles */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

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