/* ========================================================
   NEXOVANT — styles.css
   Static landing page — Vercel-ready
   ======================================================== */

/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --bg:            #07101f;
  --bg-2:          #0c1830;
  --panel:         rgba(14, 23, 46, 0.78);
  --panel-hover:   rgba(18, 30, 60, 0.88);
  --panel-border:  rgba(122, 199, 255, 0.14);
  --panel-border-h:rgba(122, 199, 255, 0.28);
  --text:          #eef4ff;
  --muted:         #9aaec8;
  --muted-2:       #6b80a0;
  --accent:        #7ac7ff;
  --accent-2:      #91f2c3;
  --accent-glow:   rgba(122, 199, 255, 0.18);
  --shadow:        0 20px 56px rgba(0, 0, 0, 0.38);
  --shadow-sm:     0 8px 24px rgba(0, 0, 0, 0.24);
  --radius:        20px;
  --radius-sm:     14px;
  --max:           1180px;
  --transition:    0.18s ease;
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system,
               BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  background:
    radial-gradient(ellipse 60% 40% at 15% 0%,  rgba(122,199,255,0.13) 0%, transparent 60%),
    radial-gradient(ellipse 50% 35% at 85% 8%,  rgba(145,242,195,0.10) 0%, transparent 55%),
    radial-gradient(ellipse 80% 60% at 50% 100%,rgba(60, 90,180, 0.08) 0%, transparent 60%),
    linear-gradient(180deg, #060d1a 0%, #081122 60%, #060e1e 100%);
  color: var(--text);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

img { display: block; max-width: 100%; }

/* ── Layout shell ───────────────────────────────────────── */
.page-shell {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 18px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}

.site-header.scrolled {
  background: rgba(6, 13, 26, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 rgba(122,199,255,0.10);
  padding: 13px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.brand-mark { width: 36px; height: 36px; }

.site-nav {
  display: flex;
  gap: 28px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
}

.site-nav a {
  transition: color var(--transition);
  padding: 4px 0;
  position: relative;
}
.site-nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}
.site-nav a:hover, .site-nav a:focus-visible { color: var(--text); }
.site-nav a:hover::after, .site-nav a:focus-visible::after { width: 100%; }

/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3 { margin-top: 0; font-weight: 700; line-height: 1.06; }
p { margin-top: 0; color: var(--muted); line-height: 1.72; }

h1 {
  font-size: clamp(2.1rem, 4.5vw, 4.4rem);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

h2 {
  font-size: clamp(1.55rem, 2.4vw, 2.5rem);
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}

h3 {
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
  color: var(--text);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  font-weight: 700;
}

/* ── Reveal animation ───────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay { transition-delay: 0.15s; }

/* ── Buttons ─────────────────────────────────────────────── */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition),
              background var(--transition), border-color var(--transition), filter var(--transition);
}

.button-primary {
  background: linear-gradient(135deg, #7ac7ff 0%, #5b9aff 100%);
  color: #03101e;
  border: 1px solid rgba(145, 216, 255, 0.28);
}
.button-primary:hover,
.button-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(122, 199, 255, 0.38);
  filter: brightness(1.06);
}

.button-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(91, 154, 255, 0.26);
  filter: brightness(0.97);
}

.button-secondary {
  border: 1px solid rgba(255,255,255,0.16);
  color: var(--text);
  background: rgba(255,255,255,0.04);
}
.button-secondary:hover,
.button-secondary:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(122,199,255,0.36);
  background: rgba(122,199,255,0.07);
}

.button-large {
  min-height: 54px;
  padding: 0 34px;
  font-size: 1rem;
}

/* ── Panel cards (shared base) ──────────────────────────── */
.hero-copy,
.hero-card,
.info-card,
.band,
.contact-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1.4fr 0.75fr;
  gap: 24px;
  align-items: stretch;
  padding: 60px 0 30px;
}

.hero-copy { padding: 44px 44px 40px; }

.hero-text {
  font-size: 1.06rem;
  max-width: 58ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 30px;
}

.hero-points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 9px;
}

.hero-points li {
  color: var(--muted);
  font-size: 0.94rem;
  padding-left: 18px;
  position: relative;
}
.hero-points li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  opacity: 0.7;
}

/* Hero card */
.hero-card { padding: 30px; }

.hero-card-title {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.hero-dl { display: grid; gap: 20px; margin: 24px 0 0; }

.hero-dl-row dt {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 5px;
}
.hero-dl-row dd {
  margin: 0;
  color: var(--text);
  font-size: 0.97rem;
  line-height: 1.5;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  background: rgba(145, 242, 195, 0.10);
  border: 1px solid rgba(145, 242, 195, 0.20);
  color: var(--accent-2);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.status-dot {
  display: block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(145,242,195,0.22);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(145,242,195,0.22); }
  50%       { box-shadow: 0 0 0 6px rgba(145,242,195,0.08); }
}

/* ── Sections ────────────────────────────────────────────── */
.section { padding: 32px 0; }

.section-heading { max-width: 760px; margin-bottom: 28px; }
.section-heading.narrow { max-width: 640px; }

/* ── Focus area cards ────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.info-card {
  padding: 26px;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.info-card:hover {
  border-color: var(--panel-border-h);
  background: var(--panel-hover);
  transform: translateY(-3px);
}

.card-icon {
  color: var(--accent);
  margin-bottom: 16px;
  display: flex;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  background: rgba(122,199,255,0.08);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(122,199,255,0.12);
}

/* ── About / split section ───────────────────────────────── */
.split-section {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 28px;
  align-items: start;
}

.split-lead { padding-top: 4px; }

.split-copy { display: grid; gap: 14px; }

.split-copy p { font-size: 1.04rem; }

/* ── Band / stage ────────────────────────────────────────── */
.band {
  padding: 32px 36px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}

.band-copy p { max-width: 52ch; }

.band-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(108px, 1fr));
  gap: 12px;
}

.band-step {
  padding: 18px 20px;
  background: rgba(255,255,255,0.025);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-sm);
  display: grid;
  gap: 7px;
}

.step-num {
  display: block;
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
}

.step-label {
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.35;
}

/* ── Why Nexovant ────────────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.why-item {
  padding: 26px 24px;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: rgba(14,23,46,0.5);
  transition: border-color var(--transition), background var(--transition);
}
.why-item:hover { border-color: var(--panel-border-h); background: var(--panel); }

.why-item h3 { font-size: 1rem; margin-bottom: 10px; }

/* ── Contact section ─────────────────────────────────────── */
.contact-section { text-align: center; }
.contact-section .section-heading { margin: 0 auto 28px; }

.contact-card {
  padding: 28px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: left;
  margin-bottom: 28px;
}

.contact-field p {
  color: var(--text);
  margin: 0;
  font-size: 0.97rem;
}

.label {
  display: inline-block;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.cta-action { display: flex; justify-content: center; }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding: 34px 0 44px;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 16px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.footer-nav {
  display: flex;
  gap: 22px;
  font-size: 0.88rem;
  color: var(--muted-2);
}
.footer-nav a { transition: color var(--transition); }
.footer-nav a:hover { color: var(--text); }

.footer-copy {
  font-size: 0.82rem;
  color: var(--muted-2);
  margin: 0;
}

/* ── Responsive: 980px ───────────────────────────────────── */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }

  .hero-copy { padding: 36px; }

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

  .split-section {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .band {
    grid-template-columns: 1fr;
    gap: 26px;
  }

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

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

  .contact-card { grid-template-columns: repeat(2, 1fr); }
}

/* ── Responsive: 680px ───────────────────────────────────── */
@media (max-width: 680px) {
  .page-shell { width: min(calc(100% - 24px), var(--max)); }

  .site-header {
    flex-wrap: wrap;
    gap: 12px;
  }

  .site-nav { gap: 20px; }

  .hero { padding: 36px 0 20px; }

  .hero-copy { padding: 26px; }

  .hero-card,
  .info-card,
  .why-item,
  .band { padding: 22px; }

  .band.band { padding: 22px; }

  h1 { font-size: clamp(1.9rem, 8vw, 2.6rem); }

  .card-grid { grid-template-columns: 1fr; }

  .band-steps { grid-template-columns: 1fr; }

  .why-grid { grid-template-columns: 1fr; }

  .contact-card {
    grid-template-columns: 1fr;
    padding: 22px;
    gap: 18px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .footer-nav { flex-wrap: wrap; gap: 16px; }
}

/* ── Focus-visible outline ───────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Button element reset (for <button> using .button class) */
button.button {
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
}

button.button:disabled {
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
  filter: none !important;
}

/* ── Contact form ────────────────────────────────────────── */
.contact-form {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 36px 40px;
  max-width: 780px;
  margin: 0 auto;
  text-align: left;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 28px;
}

.form-row-full { grid-column: 1 / -1; }

.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  margin-bottom: 8px;
}

.form-req    { color: var(--accent); margin-left: 2px; }

.form-optional {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.78rem;
  color: var(--muted-2);
}

.form-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(122, 199, 255, 0.16);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.97rem;
  line-height: 1.5;
  padding: 12px 16px;
  transition: border-color var(--transition), background var(--transition);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder { color: var(--muted-2); opacity: 1; }

.form-input:focus {
  border-color: rgba(122, 199, 255, 0.45);
  background: rgba(122, 199, 255, 0.04);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.cf-turnstile {
  min-height: 65px;
}

#form-submit {
  min-width: 184px;
  background: linear-gradient(135deg, #7ac7ff 0%, #5b9aff 100%);
  color: #03101e;
  border: 1px solid rgba(145, 216, 255, 0.28);
  box-shadow: 0 6px 18px rgba(91, 154, 255, 0.28);
}

#form-submit:focus-visible {
  outline: 2px solid #ffffff;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px rgba(122, 199, 255, 0.30), 0 8px 28px rgba(122, 199, 255, 0.38);
}

#form-submit:disabled {
  opacity: 1;
  background: linear-gradient(135deg, #6e8cad 0%, #567294 100%);
  border-color: rgba(154, 180, 209, 0.34);
  color: rgba(224, 236, 252, 0.88);
}

/* Honeypot: off-screen, invisible to real users */
.form-hp {
  position: absolute;
  left: -9999px;
  top: -9999px;
  opacity: 0;
  pointer-events: none;
}

.form-msg {
  margin: 0;
  padding: 14px 18px;
  border-radius: 10px;
  font-size: 0.95rem;
  line-height: 1.5;
}

.form-success {
  background: rgba(145, 242, 195, 0.10);
  border: 1px solid rgba(145, 242, 195, 0.22);
  color: var(--accent-2);
}

.form-error {
  background: rgba(255, 100, 100, 0.09);
  border: 1px solid rgba(255, 100, 100, 0.22);
  color: #ff9999;
}

@media (max-width: 680px) {
  .contact-form  { padding: 24px 20px; }
  .form-grid     { grid-template-columns: 1fr; }
  .form-footer   { flex-direction: column; align-items: flex-start; }
  #form-submit   { width: 100%; min-height: 56px; }
  .cf-turnstile  { width: 100%; }
}