/* ============================================
   Qbidr — design system
   Dark, electric, fast. Zero dependencies.
   ============================================ */

:root {
  --bg: #05060f;
  --bg-2: #090b18;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.05);
  --line: rgba(255, 255, 255, 0.08);
  --text: #eef0ff;
  --muted: #98a0c2;
  --violet: #8b5cff;
  --cyan: #2dd9ff;
  --pink: #ff4d8d;
  --grad: linear-gradient(120deg, #8b5cff 0%, #5c8bff 48%, #2dd9ff 100%);
  --radius: 20px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(139, 92, 255, 0.4); color: #fff; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: rgba(139, 92, 255, 0.35);
  border-radius: 6px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: rgba(139, 92, 255, 0.6); }

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; background: none; border: none; color: inherit; }
input { font: inherit; }

.container {
  width: min(1160px, calc(100% - 48px));
  margin-inline: auto;
}

/* ---------- Typography helpers ---------- */

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

h2 { font-size: clamp(2rem, 4.4vw, 3.4rem); }
h3 { font-size: 1.25rem; letter-spacing: -0.01em; }

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

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 18px;
}

.section__lead {
  color: var(--muted);
  font-size: 1.075rem;
  max-width: 620px;
}

/* ---------- Scroll progress ---------- */

.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 100%;
  background: var(--grad);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 200;
}

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

.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}

.header.is-scrolled {
  background: rgba(5, 6, 15, 0.72);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 34px;
  font-size: 0.95rem;
}

.nav a {
  color: var(--muted);
  position: relative;
  transition: color 0.25s ease;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -6px;
  height: 1.5px;
  background: var(--grad);
  transition: right 0.3s var(--ease);
}

.nav a:hover { color: var(--text); }
.nav a:hover::after { right: 0; }

.header__cta { display: flex; align-items: center; gap: 14px; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.burger span {
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}

.burger.is-open span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.burger.is-open span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  position: relative;
  transition: transform 0.25s var(--ease), box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  will-change: transform;
}

.btn--primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 32px rgba(109, 92, 255, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 44px rgba(109, 92, 255, 0.5);
}

.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  border-color: rgba(139, 92, 255, 0.55);
  background: var(--surface-2);
  transform: translateY(-2px);
}

.btn--small { padding: 10px 20px; font-size: 0.9rem; }

.btn--small.btn--primary, .btn--small {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 18px rgba(109, 92, 255, 0.3);
}

.btn--small:hover { transform: translateY(-1px); box-shadow: 0 8px 26px rgba(109, 92, 255, 0.45); }

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

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 140px 0 120px;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.9;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 92, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 255, 0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 75%);
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  will-change: transform;
}

.orb--1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, rgba(139, 92, 255, 0.32), transparent 65%);
  top: -12%; left: -8%;
  animation: drift 14s ease-in-out infinite alternate;
}

.orb--2 {
  width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(45, 217, 255, 0.22), transparent 65%);
  bottom: -6%; right: -6%;
  animation: drift 18s ease-in-out infinite alternate-reverse;
}

.orb--3 {
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(139, 92, 255, 0.25), transparent 65%);
  top: -30%; left: 50%;
  transform: translateX(-50%);
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(40px, 30px, 0) scale(1.12); }
}

.hero__content { position: relative; z-index: 2; max-width: 860px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(139, 92, 255, 0.35);
  background: rgba(139, 92, 255, 0.08);
  font-size: 0.85rem;
  color: #cdc4ff;
  margin-bottom: 30px;
  backdrop-filter: blur(6px);
}

.badge__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.8); }
}

.hero__title {
  font-size: clamp(2.9rem, 7.2vw, 5.4rem);
  margin-bottom: 26px;
}

.hero__sub {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  max-width: 560px;
  margin-bottom: 40px;
}

.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 34px; }

.hero__meta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.88rem;
}

.hero__meta i {
  width: 4px; height: 4px;
  border-radius: 50%;
  background: rgba(139, 92, 255, 0.7);
}

.hero__fade {
  position: absolute;
  inset: auto 0 0 0;
  height: 160px;
  background: linear-gradient(transparent, var(--bg));
  z-index: 1;
}

/* ---------- Reveal on scroll ---------- */

.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible { opacity: 1; transform: translateY(0); }

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

.marquee-section {
  padding: 34px 0 44px;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.012);
}

.marquee-section__label {
  text-align: center;
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 26px;
}

.marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.marquee__track {
  display: flex;
  gap: 64px;
  width: max-content;
  padding-inline: 32px;
  animation: marquee 36s linear infinite;
}

.marquee:hover .marquee__track { animation-play-state: paused; }

.marquee__track span {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: rgba(238, 240, 255, 0.38);
  white-space: nowrap;
  transition: color 0.3s ease;
}

.marquee__track span:hover { color: var(--text); }

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ---------- Sections ---------- */

.section { padding: 130px 0; position: relative; }
.section--tight { padding: 90px 0; }

.section__head { max-width: 720px; margin-bottom: 64px; }
.section__head h2 { margin-bottom: 20px; }

/* ---------- Feature cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  position: relative;
  padding: 34px 30px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s ease, background 0.35s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    320px circle at var(--mx, 50%) var(--my, 50%),
    rgba(139, 92, 255, 0.14),
    transparent 65%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(139, 92, 255, 0.4);
  background: var(--surface-2);
}

.card:hover::before { opacity: 1; }

.card__icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  color: var(--cyan);
  background: linear-gradient(140deg, rgba(139, 92, 255, 0.18), rgba(45, 217, 255, 0.1));
  border: 1px solid rgba(139, 92, 255, 0.3);
  transition: transform 0.35s var(--ease);
}

.card:hover .card__icon { transform: scale(1.08) rotate(-4deg); }

.card__icon svg { width: 26px; height: 26px; }

.card h3 { margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Numbers ---------- */

.section--numbers {
  background:
    radial-gradient(ellipse 60% 90% at 50% 110%, rgba(139, 92, 255, 0.12), transparent 70%),
    var(--bg-2);
  border-block: 1px solid var(--line);
  padding: 90px 0;
}

.numbers {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.number__value {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4.6vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}

.number p { color: var(--muted); font-size: 0.92rem; max-width: 220px; margin-inline: auto; }

/* ---------- Technology ---------- */

.tech {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 70px;
  align-items: center;
}

.tech__copy h2 { margin-bottom: 20px; }

.tech__list {
  list-style: none;
  margin-top: 36px;
  display: grid;
  gap: 22px;
}

.tech__list li {
  position: relative;
  padding-left: 30px;
  color: var(--muted);
  font-size: 0.98rem;
}

.tech__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 12px; height: 12px;
  border-radius: 4px;
  background: var(--grad);
  box-shadow: 0 0 14px rgba(139, 92, 255, 0.55);
}

.tech__list strong { color: var(--text); font-weight: 600; }

/* Bid stream panel */

.panel {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 20, 40, 0.9), rgba(8, 10, 22, 0.95));
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(139, 92, 255, 0.06), 0 0 60px rgba(139, 92, 255, 0.08);
  overflow: hidden;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.5s var(--ease);
}

.panel:hover { transform: perspective(1200px) rotateY(0) rotateX(0); }

.panel__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.panel__dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.14); }
.panel__dot:first-child { background: rgba(255, 77, 141, 0.7); }
.panel__dot:nth-child(2) { background: rgba(255, 190, 77, 0.7); }
.panel__dot:nth-child(3) { background: rgba(77, 255, 158, 0.7); }

.panel__title {
  margin-left: 10px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.panel__live {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: #4dff9e;
}

.panel__live i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4dff9e;
  box-shadow: 0 0 10px #4dff9e;
  animation: pulse 1.4s ease-in-out infinite;
}

.panel__body {
  height: 300px;
  padding: 14px 18px;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.76rem;
  line-height: 1.9;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.bid-row {
  display: flex;
  gap: 12px;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(8px);
  animation: rowIn 0.4s var(--ease) forwards;
}

@keyframes rowIn {
  to { opacity: 1; transform: translateY(0); }
}

.bid-row .t { color: rgba(238, 240, 255, 0.35); }
.bid-row .ex { color: var(--cyan); }
.bid-row .ch { color: #b79aff; }
.bid-row .pr { color: #4dff9e; }
.bid-row .ms { color: rgba(238, 240, 255, 0.5); margin-left: auto; }
.bid-row--skip .pr { color: rgba(238, 240, 255, 0.35); }

.panel__foot {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.panel__foot > div {
  padding: 16px 10px;
  text-align: center;
  display: grid;
  gap: 2px;
}

.panel__foot span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.panel__foot small {
  color: var(--muted);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ---------- Steps ---------- */

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  counter-reset: step;
  position: relative;
}

.steps::before {
  content: "";
  position: absolute;
  top: 44px; left: 8%; right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 255, 0.5), rgba(45, 217, 255, 0.5), transparent);
}

.step {
  position: relative;
  padding: 34px 30px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  transition: transform 0.35s var(--ease), border-color 0.35s ease;
}

.step:hover { transform: translateY(-6px); border-color: rgba(45, 217, 255, 0.4); }

.step__num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--grad);
  color: #fff;
  margin-bottom: 22px;
  box-shadow: 0 6px 22px rgba(109, 92, 255, 0.4);
}

.step h3 { margin-bottom: 12px; }
.step p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Chips ---------- */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.chip {
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.3s var(--ease), border-color 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
  cursor: default;
}

.chip:hover {
  transform: translateY(-4px) scale(1.04);
  border-color: rgba(139, 92, 255, 0.55);
  background: rgba(139, 92, 255, 0.1);
  box-shadow: 0 10px 30px rgba(109, 92, 255, 0.25);
}

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

.cta {
  position: relative;
  overflow: hidden;
  background: var(--bg-2);
  border-top: 1px solid var(--line);
}

.cta__inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
}

.cta h2 { margin-bottom: 20px; }
.cta p { color: var(--muted); font-size: 1.08rem; margin-bottom: 38px; }

.cta__form {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta__form input {
  width: min(340px, 100%);
  padding: 15px 22px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  outline: none;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.cta__form input::placeholder { color: rgba(152, 160, 194, 0.7); }

.cta__form input:focus {
  border-color: rgba(139, 92, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(139, 92, 255, 0.15);
}

.cta__form input.is-error {
  border-color: rgba(255, 77, 109, 0.8);
  box-shadow: 0 0 0 4px rgba(255, 77, 109, 0.12);
}

.cta__note {
  margin-top: 20px;
  font-size: 0.85rem;
  color: var(--muted);
}

.cta__note.is-success { color: #4dff9e; }

.cta__form .btn:disabled { opacity: 0.6; cursor: wait; transform: none; }

.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px; height: 1px;
  opacity: 0;
  pointer-events: none;
}

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

.footer {
  border-top: 1px solid var(--line);
  padding: 70px 0 34px;
  background: var(--bg);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 44px;
  flex-wrap: wrap;
  margin-bottom: 54px;
}

.footer__brand p {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 14px 56px;
  align-content: start;
  font-size: 0.95rem;
}

.footer__links a { color: var(--muted); transition: color 0.25s ease; }
.footer__links a:hover { color: var(--text); }

.footer__base {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  color: rgba(152, 160, 194, 0.6);
  font-size: 0.85rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 980px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .numbers { grid-template-columns: repeat(2, 1fr); gap: 44px 20px; }
  .tech { grid-template-columns: 1fr; gap: 50px; }
  .panel { transform: none; }
  .steps { grid-template-columns: 1fr; }
  .steps::before { display: none; }
}

@media (max-width: 760px) {
  .nav {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    gap: 4px;
    padding: 18px 24px 26px;
    background: rgba(5, 6, 15, 0.96);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-130%);
    transition: transform 0.4s var(--ease);
  }
  .nav.is-open { transform: translateY(0); }
  .nav a { padding: 12px 0; font-size: 1.05rem; }
  .burger { display: flex; }
  .header__cta .btn { display: none; }
  .section { padding: 90px 0; }
  .hero { padding: 120px 0 90px; }
}

@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .numbers { grid-template-columns: 1fr 1fr; gap: 36px 12px; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .cta__form { flex-direction: column; align-items: stretch; }
  .cta__form input { width: 100%; }
  .footer__links { grid-template-columns: 1fr; gap: 12px; }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__canvas { display: none; }
}