/* ============================================
   Plasmoid X — Design System
   ============================================ */

:root {
  --dark-green: #123524;
  --teal: #2d848a;
  --blue-green: #3c98b9;
  --carolina-blue: #6bb2db;
  --uranian-blue: #a4d8f4;
  --ink: #0b1a15;
  --paper: #f7faf9;
  --white: #ffffff;
  --muted: #5b6c66;
  --line: rgba(11, 26, 21, 0.1);
  --accent: var(--teal);
  --accent-strong: var(--dark-green);
  --focus: var(--blue-green);
  --max: 1180px;
  --radius: 10px;
  --shadow: 0 12px 32px rgba(11, 26, 21, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Plus Jakarta Sans", "Inter", sans-serif;
  color: var(--dark-green);
  line-height: 1.15;
  margin: 0 0 0.6em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
h3 { font-size: 1.25rem; }

.hero h1 {
  font-family: "Chakra Petch", "Plus Jakarta Sans", sans-serif;
  font-weight: 600;
}

p { margin: 0 0 1em; color: var(--muted); }
a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--dark-green); }
img { max-width: 100%; display: block; }

.shell {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(247, 250, 249, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--dark-green);
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--teal);
  position: relative;
  flex-shrink: 0;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--uranian-blue), var(--blue-green));
  box-shadow: 0 0 10px rgba(60, 152, 185, 0.6);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a.active,
.nav-links a:hover { color: var(--teal); }

.nav-cta {
  background: var(--dark-green);
  color: var(--white) !important;
  padding: 0.6rem 1.3rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
}
.nav-cta:hover { background: var(--teal); }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  color: var(--dark-green);
  cursor: pointer;
}

.hero {
  padding: 168px 0 96px;
  background:
    radial-gradient(1200px 500px at 20% -10%, rgba(164, 216, 244, 0.35), transparent 60%),
    linear-gradient(160deg, var(--dark-green) 0%, var(--teal) 55%, var(--blue-green) 100%);
  color: var(--white);
}
.hero .section-label { color: var(--uranian-blue); }
.hero h1 { color: var(--white); }
.hero p.lead {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.2rem;
  max-width: 620px;
}

.section-label {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--teal);
  margin-bottom: 0.9rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-primary { background: var(--white); color: var(--dark-green); }
.btn-primary:hover { transform: translateY(-2px); color: var(--dark-green); }
.btn-outline { border-color: var(--white); color: var(--white); }
.btn-outline:hover { background: rgba(255,255,255,0.12); color: var(--white); }
.btn-dark { background: var(--dark-green); color: var(--white); }
.btn-dark:hover { background: var(--teal); transform: translateY(-2px); color: var(--white); }

section { padding: 5.5rem 0; }
.section-alt { background: var(--white); }
.section-header { max-width: 680px; margin: 0 0 3rem; }
.section-header.center { margin-inline: auto; text-align: center; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
}
.card .icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--blue-green));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  color: var(--white);
  font-size: 1.4rem;
}
.card h3 { margin-bottom: 0.5rem; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.5rem;
  counter-reset: step;
}
.step {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
}
.step .step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--dark-green);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 700;
  margin-bottom: 1rem;
}
.step h3 { font-size: 1.05rem; margin-bottom: 0.4rem; }
.step p { font-size: 0.9rem; margin-bottom: 0; }

.steps-3 { grid-template-columns: repeat(3, 1fr); }

.system-figure {
  margin: 0 auto;
  max-width: 600px;
  background: #f7f9f8;
  border-radius: 16px;
  padding: 1.5rem;
}
.system-figure img { width: 100%; height: auto; }
.system-figure.wide { margin-bottom: 3rem; }

.note-band {
  background: rgba(45, 132, 138, 0.08);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  margin-top: 2rem;
}
.note-band p { margin: 0; color: var(--ink); }

.diagram {
  background: linear-gradient(160deg, var(--dark-green), var(--teal));
  border-radius: 16px;
  padding: 3rem 2rem;
  color: var(--white);
  text-align: center;
}

.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.value-card { border-left: 3px solid var(--teal); padding: 0.2rem 0 0.2rem 1.4rem; }
.value-card h3 { margin-bottom: 0.4rem; }
.value-card p { font-size: 0.95rem; margin-bottom: 0; }

.founder {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 2.5rem;
  align-items: start;
}
.founder-photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--uranian-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-family: "Plus Jakarta Sans", sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-align: center;
  padding: 1rem;
}

.placeholder-media {
  background: repeating-linear-gradient(135deg, rgba(45, 132, 138, 0.08), rgba(45, 132, 138, 0.08) 10px, rgba(45, 132, 138, 0.14) 10px, rgba(45, 132, 138, 0.14) 20px);
  border: 1px dashed var(--blue-green);
  border-radius: var(--radius);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  padding: 1rem;
}

.cta-band {
  background: linear-gradient(135deg, var(--teal), var(--blue-green));
  color: var(--white);
  text-align: center;
  border-radius: 20px;
  padding: 4rem 2rem;
}
.cta-band h2 { color: var(--white); }
.cta-band p { color: rgba(255,255,255,0.9); max-width: 520px; margin-inline: auto; }
.cta-band .btn-row { margin-top: 1.5rem; display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.form-grid { display: grid; gap: 1.1rem; max-width: 640px; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--dark-green);
  margin-bottom: 0.4rem;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--white);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
}
.field input:focus,
.field select:focus,
.field textarea:focus { outline: 2px solid var(--focus); outline-offset: 1px; }
.field textarea { min-height: 140px; resize: vertical; }
.form-note { font-size: 0.85rem; color: var(--muted); }

.site-footer { background: var(--ink); color: rgba(255,255,255,0.7); padding: 3rem 0 2rem; }
.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand { color: var(--white); font-family: "Plus Jakarta Sans", sans-serif; font-weight: 700; }
.footer-links { display: flex; gap: 1.5rem; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.footer-links a { color: rgba(255,255,255,0.75); font-size: 0.9rem; }
.footer-links a:hover { color: var(--uranian-blue); }
.footer-bottom {
  padding-top: 1.5rem;
  font-size: 0.82rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: rgba(45, 132, 138, 0.12);
  color: var(--teal);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; gap: 2rem; }
  .steps, .steps-3 { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .founder { grid-template-columns: 1fr; }
  .founder-photo { width: 140px; }
}

@media (max-width: 720px) {
  .menu-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    padding: 1rem 24px 1.5rem;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-cta { align-self: flex-start; }
  .steps, .steps-3 { grid-template-columns: 1fr; }
  .hero { padding: 140px 0 72px; }
  .system-figure { padding: 0.75rem; }
}