/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #12131a;
  --bg2:       #1a1b28;
  --bg3:       #232533;
  --border:    rgba(255,255,255,.08);
  --text:      #e2e8f0;
  --text-dim:  #6b7a99;
  --accent:    #4F46E5;   /* indigo — from logo box outline */
  --accent2:   #9333EA;  /* purple — from logo box outline end */
  --cyan:      #06b6d4;  /* cyan — from logo arrows */
  --green:     #10b981;  /* emerald — from logo arrows end */
  --radius:    10px;
  --font-mono: 'JetBrains Mono', monospace;
  --font-sans: 'Inter', system-ui, sans-serif;
  --max-w:     1100px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(6,182,212,.1);
  color: var(--cyan);
  padding: 1px 6px;
  border-radius: 4px;
}

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15,17,23,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.nav__logo-img {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.logo-accent { color: var(--accent); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav__links a {
  color: var(--text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav__links a:hover { color: var(--text); text-decoration: none; }

.nav__gh {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border);
  padding: 0.3rem 0.85rem;
  border-radius: 6px;
  transition: border-color 0.2s, color 0.2s !important;
}

.nav__gh:hover {
  border-color: rgba(255,255,255,.2) !important;
  color: var(--text) !important;
}

/* ── Hero ── */
.hero {
  padding-top: 5rem;
  padding-bottom: 0;
}

.hero__inner {
  text-align: center;
}

.hero__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  background: rgba(6,182,212,.1);
  border: 1px solid rgba(6,182,212,.25);
  padding: 0.25rem 0.9rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.03em;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 50%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  max-width: 520px;
  margin-inline: auto;
  color: var(--text-dim);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.hero__cta {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  transition: transform 0.15s, opacity 0.15s, box-shadow 0.15s;
  cursor: pointer;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn--primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(79,70,229,.4);
}

.btn--primary:hover {
  opacity: 0.92;
  box-shadow: 0 6px 28px rgba(147,51,234,.5);
}

.btn__arrow { transition: transform 0.2s; }
.btn--primary:hover .btn__arrow { transform: translateX(3px); }

.btn--ghost {
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.btn--ghost:hover { color: var(--text); border-color: rgba(255,255,255,.18); }

.hero__meta {
  color: var(--text-dim);
  font-size: 0.82rem;
  margin-bottom: 3.5rem;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  align-items: center;
}

.dot { color: var(--border); }

/* ── Terminal Demo ── */
.hero__terminal-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: stretch;
  margin-bottom: 0;
  position: relative;
}

@media (max-width: 640px) {
  .hero__terminal-wrap { grid-template-columns: 1fr; }
}

.terminal {
  background: #0a0d14;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: left;
  position: relative;
}

.terminal--light {
  background: var(--bg2);
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 0.9rem;
  background: #111520;
  border-bottom: 1px solid var(--border);
}

.terminal__bar--light {
  background: var(--bg3);
}

.terminal__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.terminal__dot--red    { background: #ff5f57; }
.terminal__dot--yellow { background: #febc2e; }
.terminal__dot--green  { background: #28c840; }

.terminal__title {
  flex: 1;
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-dim);
  font-family: var(--font-sans);
}

.terminal__title--light { color: var(--text); }

.terminal__body {
  padding: 1.2rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: #a8b4c8;
  white-space: pre-wrap;
  word-break: break-all;
}

.t-dim    { color: var(--text-dim); }
.t-cursor {
  display: inline-block;
  width: 8px;
  height: 1em;
  background: var(--cyan);
  vertical-align: text-bottom;
  animation: blink 1.1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.terminal__vs {
  position: absolute;
  top: 50%;
  right: -1.5rem;
  transform: translate(50%, -50%);
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  letter-spacing: 0.05em;
  z-index: 1;
}

@media (max-width: 640px) { .terminal__vs { display: none; } }

/* ── FFBox Mock ── */
.ffbox-mock {
  padding: 1.2rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.mock-step {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.mock-num {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background: rgba(6,182,212,.15);
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 5px;
}

.mock-check {
  margin-left: auto;
  color: var(--green);
  font-size: 0.9rem;
}

.mock-check--spin {
  color: var(--cyan);
  display: inline-block;
  animation: spin 1.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ── Section Shared ── */
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  text-align: center;
}

.section-sub {
  text-align: center;
  color: var(--text-dim);
  margin-bottom: 3rem;
}

/* ── Features ── */
.features {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 3rem;
}

.feature-card {
  background: var(--bg);
  padding: 1.75rem 1.5rem;
  transition: background 0.2s;
}

.feature-card:hover { background: var(--bg2); }

.feature-card__icon {
  width: 42px;
  height: 42px;
  background: rgba(79,70,229,.12);
  border: 1px solid rgba(79,70,229,.25);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ── How It Works ── */
.how {
  padding: 5rem 0;
  border-top: 1px solid var(--border);
}

.steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: steps;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  left: 2.25rem;
  top: 3rem;
  bottom: 1rem;
  width: 1px;
  background: var(--border);
}

.step {
  display: flex;
  gap: 1.5rem;
  padding: 1.75rem 0;
  position: relative;
}

.step__num {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  background: var(--bg3);
  border: 1px solid rgba(79,70,229,.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--cyan);
  position: relative;
  z-index: 1;
}

.step__body h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  padding-top: 0.65rem;
}

.step__body p {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.step__body a {
  color: var(--accent);
}


/* ── Footer ── */
.footer {
  padding: 2.25rem 0;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer__logo { font-size: 1rem; }

.footer__copy {
  color: var(--text-dim);
  font-size: 0.82rem;
}

.footer__copy a {
  color: var(--text-dim);
  text-decoration: underline;
}

.footer__copy a:hover { color: var(--text); }

/* ── Responsive ── */
@media (max-width: 480px) {
  .nav__links a:not(.nav__gh) { display: none; }
  .steps::before { display: none; }
}