/* ═══════════════════════════════════════════════════════════════════════════
   Salmon Design System — main.css
   Brand: dark-first, salmon accent, Karla font, pill buttons
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Fonts ────────────────────────────────────────────────────────────────── */
@font-face {
  font-family: 'Karla Variable';
  src: url('../fonts/Karla-VariableFont_wght.woff2') format('woff2');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Karla Variable';
  src: url('../fonts/Karla-Italic-VariableFont_wght.woff2') format('woff2');
  font-weight: 200 800;
  font-style: italic;
  font-display: swap;
}

/* ── Tokens ───────────────────────────────────────────────────────────────── */
:root {
  /* Brand colors */
  --dark:        #1f1f1f;
  --darker:      #181818;
  --dark-2:      #222;
  --surface:     #2a2a2a;
  --border:      #303030;
  --border-2:    #3a3a3a;

  /* Accent */
  --salmon:      #fc7869;
  --salmon-light:#ff9a8b;
  --salmon-dim:  rgba(252,120,105,0.08);
  --salmon-bdr:  rgba(252,120,105,0.25);
  --salmon-grad: linear-gradient(135deg, #fc7869 0%, #ff9a8b 100%);

  /* Secondary accent (subtle blue) */
  --blue:        #4a9eff;
  --blue-dim:    rgba(74,158,255,0.08);
  --blue-bdr:    rgba(74,158,255,0.25);

  /* Status */
  --green:       #5ab46e;
  --green-dim:   rgba(90,180,110,0.1);
  --red:         #d95040;
  --red-dim:     rgba(217,80,64,0.1);

  /* Text */
  --charcoal:    #a3a3a3;
  --grey:        #d4d4d4;
  --light-grey:  #e5e5e5;
  --white:       #fff;

  /* Typography */
  --f:           'Karla Variable', 'Karla', Arial, Helvetica, sans-serif;
  --f-mono:      'SF Mono', 'Fira Code', 'Fira Mono', Menlo, monospace;

  /* Layout */
  --max-w:       80rem;
  --max-w-md:    64rem;
  --max-w-sm:    48rem;
  --pad:         2.5rem;
  --pad-sm:      1.25rem;

  /* Radius */
  --r-pill:      0.375rem;
  --r-card:      0.75rem;
  --r-sm:        0.375rem;
}

/* ── Reset ────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--f);
  font-size: 1.1875rem;
  line-height: 1.6;
  color: var(--grey);
  background: var(--dark);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* ── Typography ───────────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 { color: var(--white); line-height: 1.1; }
h1 { font-size: clamp(2.5rem, 5.5vw, 4rem); letter-spacing: -0.03em; font-weight: 300; }
h2 { font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; font-weight: 300; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); letter-spacing: -0.01em; font-weight: 500; }
h4 { font-weight: 600; }
h4 { font-size: 1.25rem; }
.eyebrow {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--salmon);
  display: block;
  margin-bottom: 0.75rem;
}
/* ── Layout ───────────────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
}
.section {
  padding: 5rem 0;
}
.section-lg {
  padding: 5.5rem 0;
}
.section-sm {
  padding: 3rem 0;
}
.section-bordered {
  border-bottom: 1px solid var(--border);
}
.section-surface {
  background: var(--dark-2);
}
/* ── Grid ─────────────────────────────────────────────────────────────────── */
.grid      { display: grid; gap: 1.5rem; }
.grid-2    { grid-template-columns: repeat(2, 1fr); }
.grid-3    { grid-template-columns: repeat(3, 1fr); }
.grid-4    { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.flex      { display: flex; }
.flex-col  { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-xs  { gap: 0.5rem; }
.gap-sm  { gap: 1rem; }
.gap-md  { gap: 1.5rem; }
.gap-lg  { gap: 2.5rem; }
.gap-xl  { gap: 4rem; }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--r-pill);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--salmon);
  color: var(--dark);
}
.btn-primary:hover {
  background: var(--salmon);
  color: var(--dark);
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 4px 20px rgba(252,120,105,0.25);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid var(--border-2);
}
.btn-outline:hover {
  border-color: var(--salmon-bdr);
  color: var(--salmon);
  background: var(--salmon-dim);
}
.btn-ghost {
  background: transparent;
  color: var(--grey);
  padding: 0.75rem 1.25rem;
}
.btn-ghost:hover {
  color: var(--white);
}
.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.8125rem;
}
.btn-lg {
  padding: 0.8rem 1.75rem;
  font-size: 1rem;
}
/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover {
  border-color: var(--border-2);
  transform: translateY(-2px);
}
/* ── Badges / Pills ───────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: var(--r-pill);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-salmon {
  background: var(--salmon-dim);
  color: var(--salmon);
  border: 1px solid var(--salmon-bdr);
}
.badge-green {
  background: var(--green-dim);
  color: var(--green);
  border: 1px solid rgba(90,180,110,0.25);
}
.badge-blue {
  background: var(--blue-dim);
  color: var(--blue);
  border: 1px solid var(--blue-bdr);
}

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(31,31,31,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad);
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo img {
  height: 1.75rem;
  width: auto;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--grey);
  padding: 0.5rem 0.875rem;
  border-radius: var(--r-sm);
  transition: color 0.15s, background 0.15s;
}
.nav-link:hover {
  color: var(--white);
  background: rgba(255,255,255,0.04);
}
.nav-link.active {
  color: var(--white);
}

/* Nav dropdowns */
.nav-dropdown {
  position: relative;
}
.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-dropdown-trigger::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: 0.5;
  transition: transform 0.2s;
}
.nav-dropdown:hover .nav-dropdown-trigger::after {
  transform: rotate(180deg);
}
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%);
  min-width: 14rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(8px);
  transition: all 0.2s ease;
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}
.nav-dropdown:hover .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown-item {
  display: block;
  padding: 0.625rem 0.875rem;
  font-size: 0.8125rem;
  color: var(--grey);
  border-radius: var(--r-sm);
  transition: all 0.15s;
}
.nav-dropdown-item:hover {
  background: rgba(255,255,255,0.05);
  color: var(--white);
}

.nav-cta-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: 0.75rem;
}
.nav-cta {
  margin-left: 0;
}
.nav-cta.btn-outline {
  border-color: var(--salmon-bdr);
  color: var(--salmon-light);
}
.nav-cta.btn-outline:hover {
  border-color: var(--salmon);
  color: var(--white);
  background: rgba(252,120,105,0.12);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  cursor: pointer;
}
.nav-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--white);
  border-radius: 1px;
  transition: all 0.3s;
}
.nav-mobile-overlay {
  display: none;
}

/* ── Footer ───────────────────────────────────────────────────────────────── */
.footer {
  background: var(--darker);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: 2rem;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.footer-brand img {
  height: 1.75rem;
  width: auto;
}
.footer-brand p {
  font-size: 0.8125rem;
  color: var(--charcoal);
  line-height: 1.6;
  max-width: 16rem;
}
.footer-col h4 {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--light-grey);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}
.footer-col a {
  display: block;
  font-size: 0.8125rem;
  color: var(--charcoal);
  padding: 0.3rem 0;
  transition: color 0.15s;
}
.footer-col a:hover {
  color: var(--light-grey);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  margin-top: 3rem;
  border-top: 1px solid var(--border);
}
.footer-bottom p {
  font-size: 0.75rem;
  color: var(--charcoal);
}
/* ── Utilities ────────────────────────────────────────────────────────────── */
.mt-xs { margin-top: 0.5rem; }
.mt-sm { margin-top: 1rem; }
.mt-md { margin-top: 1.5rem; }
.mt-lg { margin-top: 2.5rem; }
.mt-xl { margin-top: 4rem; }
.mb-xs { margin-bottom: 0.5rem; }
.mb-sm { margin-bottom: 1rem; }
.mb-md { margin-bottom: 1.5rem; }
.mb-lg { margin-bottom: 2.5rem; }
.mb-xl { margin-bottom: 4rem; }
.mx-auto { margin-left: auto; margin-right: auto; }
.text-center { text-align: center; }
.max-w-prose { max-width: 36rem; }

/* ── Animations ───────────────────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: none; }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0; }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.anim-fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.anim-fade-up.visible {
  opacity: 1;
  transform: none;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 991px) {
  :root { --pad: 1.5rem; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr repeat(2, 1fr); gap: 2rem 1.5rem; }
  .footer-brand { grid-row: 1 / 3; }

  /* Mobile nav */
  .nav-links { display: none; }
  .nav-cta.hide-mobile { display: none; }
  .nav-cta-group.hide-mobile { display: none; }
  .nav-toggle { display: flex; }
  .nav-mobile-overlay {
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(31,31,31,0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    padding: 1.5rem var(--pad);
    overflow-y: auto;
  }
  .nav-mobile-overlay.active { display: block; }
  .nav-mobile-overlay .nav-link {
    display: block;
    font-size: 1rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }
  .nav-mobile-overlay .nav-dropdown-menu {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0 0 0 1rem;
    min-width: 0;
  }
  .nav-mobile-overlay .nav-dropdown-item {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
  }
}

@media (max-width: 767px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
  .section-lg { padding: 4.5rem 0; }
  .footer-grid { grid-template-columns: 1fr repeat(2, 1fr); gap: 1.5rem 1.25rem; }
}

@media (max-width: 479px) {
  :root { --pad: 1rem; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem 1rem; }
  .footer-brand { grid-column: 1 / -1; grid-row: auto; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}