/* ==========================================================================
   Novacendia — site styles
   Dark-first, single stylesheet, no build step.
   ========================================================================== */

/* --- Tokens ------------------------------------------------------------- */

:root {
  --bg:            #06070b;
  --bg-raised:     #0c0e15;
  --bg-sunken:     #040508;
  --line:          rgba(255, 255, 255, 0.09);
  --line-strong:   rgba(255, 255, 255, 0.16);

  --text:          #eef0f6;
  --text-muted:    #9aa1b4;
  --text-faint:    #6b7286;

  --accent:        #7c6cff;
  --accent-2:      #35d6e6;
  --accent-warm:   #ff9d6c;
  --accent-soft:   rgba(124, 108, 255, 0.14);

  --grad: linear-gradient(115deg, var(--accent) 0%, #a78bfa 40%, var(--accent-2) 100%);

  --radius:    14px;
  --radius-lg: 22px;

  --gutter: 1.25rem;
  --shell:  min(1180px, 100% - 2.5rem);
  --shell-narrow: min(760px, 100% - 2.5rem);

  --step--1: clamp(0.82rem, 0.79rem + 0.14vw, 0.9rem);
  --step-0:  clamp(1rem, 0.96rem + 0.2vw, 1.09rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.5vw, 1.45rem);
  --step-2:  clamp(1.55rem, 1.35rem + 1vw, 2.1rem);
  --step-3:  clamp(2rem, 1.6rem + 2vw, 3.1rem);
  --step-4:  clamp(2.6rem, 1.8rem + 3.6vw, 4.6rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- Base --------------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  font-size: var(--step-0);
  line-height: 1.65;
  font-feature-settings: "ss01", "cv05";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Ambient light behind everything. */
body::before {
  content: "";
  position: fixed;
  inset: -30% -10% auto -10%;
  height: 90vh;
  background:
    radial-gradient(50% 55% at 22% 8%, rgba(124, 108, 255, 0.20), transparent 70%),
    radial-gradient(42% 50% at 82% 0%, rgba(53, 214, 230, 0.13), transparent 72%);
  filter: blur(20px);
  pointer-events: none;
  z-index: 0;
}

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

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

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.028em;
  font-weight: 600;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }

::selection { background: rgba(124, 108, 255, 0.35); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 6px;
}

/* --- Layout primitives -------------------------------------------------- */

.shell { width: var(--shell); margin-inline: auto; }
.shell-narrow { width: var(--shell-narrow); margin-inline: auto; }

main { position: relative; z-index: 1; }

section { padding-block: clamp(4.5rem, 9vw, 8rem); }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.7rem 1.1rem;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* --- Header ------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
    backdrop-filter 0.3s var(--ease);
}

.site-header.is-stuck {
  background: rgba(6, 7, 11, 0.72);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom-color: var(--line);
}

.site-header .shell {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  font-size: 1.06rem;
  margin-right: auto;
}

.brand-mark { width: 28px; height: 28px; flex: none; }

.nav { display: flex; align-items: center; gap: 0.35rem; }

.nav a {
  padding: 0.5rem 0.85rem;
  border-radius: 9px;
  font-size: var(--step--1);
  color: var(--text-muted);
  transition: color 0.2s, background 0.2s;
}
.nav a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.nav a[aria-current="page"] { color: var(--text); }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 17px;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.28s var(--ease), opacity 0.2s;
}
.nav-toggle span { margin-inline: auto; position: relative; }
.nav-toggle span::before,
.nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -5.5px; }
.nav-toggle span::after  { top:  5.5px; }

.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { transform: translateY(-5.5px) rotate(-45deg); }

@media (max-width: 820px) {
  .nav-toggle { display: grid; place-items: center; }

  .nav {
    position: fixed;
    inset: 74px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem var(--gutter) 1.5rem;
    background: rgba(8, 9, 14, 0.97);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.24s var(--ease), transform 0.24s var(--ease),
      visibility 0.24s;
  }
  .nav[data-open="true"] { opacity: 1; transform: none; visibility: visible; }
  .nav a { padding: 0.85rem 0.5rem; font-size: var(--step-0); border-radius: 0; }
  .nav .btn { margin-top: 0.75rem; justify-content: center; }
}

/* --- Buttons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.3rem;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: var(--step--1);
  font-weight: 550;
  letter-spacing: -0.01em;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.18s var(--ease), background 0.2s, border-color 0.2s,
    box-shadow 0.25s, color 0.2s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--grad);
  color: #08090d;
  font-weight: 600;
  box-shadow: 0 8px 28px -12px rgba(124, 108, 255, 0.9);
}
.btn-primary:hover { box-shadow: 0 14px 38px -12px rgba(124, 108, 255, 1); }

.btn-ghost {
  border-color: var(--line-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.02);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.07); border-color: rgba(255, 255, 255, 0.3); }

.btn-lg { padding: 0.9rem 1.6rem; font-size: var(--step-0); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--accent-2);
  font-size: var(--step--1);
  font-weight: 550;
}
.link-arrow svg { transition: transform 0.22s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* --- Type helpers ------------------------------------------------------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.lede { font-size: var(--step-1); color: var(--text-muted); line-height: 1.55; }
.muted { color: var(--text-muted); }

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-head { max-width: 62ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head h2 { font-size: var(--step-3); margin-block: 1rem 1.1rem; }

/* --- Hero --------------------------------------------------------------- */

.hero { padding-block: clamp(5rem, 12vw, 9.5rem) clamp(4rem, 8vw, 7rem); }

.hero h1 {
  font-size: var(--step-4);
  margin-block: 1.4rem 1.6rem;
  max-width: 16ch;
}

.hero .lede { max-width: 54ch; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.4rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2.2rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  font-size: var(--step--1);
  color: var(--text-faint);
}
.hero-meta > * { display: inline-flex; align-items: center; gap: 0.5rem; }

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 4px rgba(53, 214, 230, 0.14);
}

/* --- Marquee / logos ---------------------------------------------------- */

.strip {
  border-block: 1px solid var(--line);
  padding-block: 1.6rem;
  overflow: hidden;
  background: var(--bg-sunken);
}
.strip-inner {
  display: flex;
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  font-size: var(--step--1);
  color: var(--text-faint);
  letter-spacing: 0.02em;
  white-space: nowrap;
  animation: drift 38s linear infinite;
  width: max-content;
}
.strip:hover .strip-inner { animation-play-state: paused; }
@keyframes drift {
  to { transform: translateX(-50%); }
}

/* --- Cards / grids ------------------------------------------------------ */

.grid { display: grid; gap: 1.15rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.card {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.1rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.008));
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease), background 0.3s;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    360px circle at var(--mx, 50%) var(--my, 0%),
    rgba(124, 108, 255, 0.13),
    transparent 60%
  );
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); }
.card:hover::after { opacity: 1; }

.card h3 { font-size: var(--step-1); margin-bottom: 0.7rem; }
.card p { color: var(--text-muted); font-size: 0.96rem; }

.card-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 1.35rem;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: var(--accent-soft);
  color: var(--accent-2);
}
.card-icon svg { width: 21px; height: 21px; }

.card-index {
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--text-faint);
  margin-bottom: 1.1rem;
}

.tag-row { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-top: 1.3rem; }
.tag {
  padding: 0.28rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 100px;
  font-size: 0.74rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

/* Feature card that spans wide on large screens. */
.card-wide { grid-column: 1 / -1; }
@media (min-width: 900px) {
  .grid-feature { grid-template-columns: 1.35fr 1fr 1fr; }
  .grid-feature .card-wide { grid-column: auto; }
  .grid-feature > :first-child { grid-row: span 2; }
}

/* --- Stats -------------------------------------------------------------- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.stat {
  display: flex;
  flex-direction: column;
  padding: 1.9rem 1.6rem;
  background: var(--bg-raised);
}
.stat dt { font-size: var(--step--1); color: var(--text-faint); order: 2; }
.stat dd {
  margin: 0 0 0.35rem;
  font-size: var(--step-3);
  font-weight: 600;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

/* --- Process steps ------------------------------------------------------ */

.steps { counter-reset: step; display: grid; gap: 0; }
.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem 1.8rem;
  padding-block: clamp(1.8rem, 3.5vw, 2.6rem);
  border-top: 1px solid var(--line);
  align-items: start;
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step::before {
  content: counter(step, decimal-leading-zero);
  font-variant-numeric: tabular-nums;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--accent);
  padding-top: 0.42rem;
}
.step h3 { font-size: var(--step-2); margin-bottom: 0.6rem; }
.step p { color: var(--text-muted); max-width: 62ch; }

@media (min-width: 820px) {
  .step { grid-template-columns: auto 26ch 1fr; }
  .step h3 { margin-bottom: 0; }
}

/* --- Quote -------------------------------------------------------------- */

.quote {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 5vw, 3.5rem);
  background:
    linear-gradient(180deg, rgba(124, 108, 255, 0.07), rgba(255, 255, 255, 0.01));
}
.quote blockquote {
  margin: 0;
  font-size: var(--step-2);
  line-height: 1.35;
  letter-spacing: -0.025em;
  text-wrap: balance;
}
.quote figcaption {
  margin-top: 1.6rem;
  font-size: var(--step--1);
  color: var(--text-faint);
}
.quote figcaption strong { color: var(--text); font-weight: 550; }

/* --- CTA band ----------------------------------------------------------- */

.cta {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  text-align: center;
  overflow: hidden;
  background: var(--bg-raised);
}
.cta::before {
  content: "";
  position: absolute;
  inset: -60% -20% auto -20%;
  height: 200%;
  background: radial-gradient(45% 45% at 50% 30%, rgba(124, 108, 255, 0.28), transparent 70%);
  pointer-events: none;
}
.cta > * { position: relative; }
.cta h2 { font-size: var(--step-3); margin-bottom: 1rem; }
.cta p { color: var(--text-muted); max-width: 48ch; margin-inline: auto; }
.cta .hero-actions { justify-content: center; margin-top: 2rem; }

/* --- Forms -------------------------------------------------------------- */

.form { display: grid; gap: 1.15rem; }
.field { display: grid; gap: 0.5rem; }
.field label { font-size: var(--step--1); font-weight: 550; }
.field .hint { font-size: 0.78rem; color: var(--text-faint); }

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font: inherit;
  font-size: 0.96rem;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; min-height: 140px; }
.field input::placeholder,
.field textarea::placeholder { color: var(--text-faint); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(124, 108, 255, 0.18);
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239aa1b4' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 17px;
  padding-right: 2.5rem;
}
.field-row { display: grid; gap: 1.15rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.field[data-invalid="true"] input,
.field[data-invalid="true"] textarea,
.field[data-invalid="true"] select { border-color: #ff7a7a; }
.error-text { font-size: 0.78rem; color: #ff9b9b; }

.form-note { font-size: 0.8rem; color: var(--text-faint); }

.form-status {
  padding: 0.85rem 1.05rem;
  border-radius: 11px;
  border: 1px solid var(--line-strong);
  background: rgba(53, 214, 230, 0.08);
  font-size: var(--step--1);
}
.form-status[hidden] { display: none; }

/* Honeypot */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* --- Split layout ------------------------------------------------------- */

.split {
  display: grid;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}
@media (min-width: 900px) {
  .split { grid-template-columns: 1fr 1.1fr; }
  .split-sticky { position: sticky; top: 7rem; }
}

.detail-list { display: grid; gap: 0; margin: 0; }
.detail-list > div {
  display: grid;
  gap: 0.2rem 1.5rem;
  padding-block: 1.1rem;
  border-top: 1px solid var(--line);
}
.detail-list > div:last-child { border-bottom: 1px solid var(--line); }
.detail-list dt { font-size: var(--step--1); color: var(--text-faint); }
.detail-list dd { margin: 0; }
@media (min-width: 600px) {
  .detail-list > div { grid-template-columns: 12rem 1fr; }
}

.prose > * + * { margin-top: 1.15rem; }
.prose h3 { font-size: var(--step-1); margin-top: 2.4rem; }
.prose p { color: var(--text-muted); }
.prose ul { margin: 0; padding-left: 1.15rem; color: var(--text-muted); }
.prose li + li { margin-top: 0.5rem; }
.prose li::marker { color: var(--accent); }

/* --- Page header (inner pages) ------------------------------------------ */

.page-head { padding-block: clamp(4rem, 9vw, 7rem) clamp(2.5rem, 5vw, 4rem); }
.page-head h1 { font-size: var(--step-4); margin-block: 1.3rem 1.4rem; max-width: 18ch; }
.page-head .lede { max-width: 58ch; }

/* --- Footer ------------------------------------------------------------- */

.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  background: var(--bg-sunken);
  margin-top: clamp(3rem, 8vw, 6rem);
}
.footer-grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.footer-grid > :first-child { grid-column: 1 / -1; max-width: 34ch; }
@media (min-width: 860px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .footer-grid > :first-child { grid-column: auto; }
}
.footer-col h4 {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  margin-bottom: 1.1rem;
  font-weight: 600;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.65rem; }
.footer-col a { font-size: var(--step--1); color: var(--text-muted); transition: color 0.2s; }
.footer-col a:hover { color: var(--text); }

.footer-base {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  margin-top: 3rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* --- Reveal animation --------------------------------------------------- */

/* Scoped to .js so content stays visible when scripting is off. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--delay, 0ms);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}