/* Volta marketing site styles — depends on ../../colors_and_type.css */

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg-page); color: var(--fg-1); font-family: var(--font-body); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Buttons ---------- */
.vlf-btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-body); font-weight: 600; font-size: 14px; padding: 10px 18px; border-radius: 10px; border: 1px solid transparent; transition: background 120ms var(--ease-out), color 120ms var(--ease-out); white-space: nowrap; }
.vlf-btn-lg { padding: 14px 22px; font-size: 16px; }
.vlf-btn-primary { background: var(--voltgreen-500); color: white; }
.vlf-btn-primary:hover { background: var(--voltgreen-700); }
.vlf-btn-secondary { background: white; color: var(--voltgreen-700); border-color: var(--grey-200); }
.vlf-btn-secondary:hover { background: var(--mint-100); }
.vlf-btn-bolt { background: var(--bolt-yellow); color: var(--voltgreen-900); border-color: var(--voltgreen-900); }
.vlf-btn-bolt:hover { background: var(--bolt-yellow-deep); }
.vlf-btn-ghost-on-dark { background: transparent; color: var(--mint-50); border-color: rgba(244, 250, 246, 0.25); }
.vlf-btn-ghost-on-dark:hover { background: rgba(244, 250, 246, 0.06); }

/* ---------- Nav ---------- */
.vlf-nav { position: sticky; top: 0; z-index: 50; transition: background 200ms var(--ease-out), backdrop-filter 200ms var(--ease-out), border-color 200ms var(--ease-out); border-bottom: 1px solid transparent; }
.vlf-nav.solid { background: rgba(244, 250, 246, 0.84); backdrop-filter: blur(12px); border-bottom-color: var(--grey-200); }
.vlf-nav-inner { max-width: 1200px; margin: 0 auto; padding: 14px 32px; display: flex; align-items: center; gap: 24px; }
.vlf-logo { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 700; font-size: 18px; color: var(--voltgreen-900); letter-spacing: -0.01em; }
.vlf-logo img { width: 28px; height: 28px; }
.vlf-logo-dark { color: var(--mint-50); }
.vlf-nav-links { display: flex; align-items: center; gap: 4px; }
.vlf-nav-links a { font-size: 14px; font-weight: 500; color: var(--fg-1); padding: 6px 12px; border-radius: 8px; transition: background 120ms var(--ease-out); white-space: nowrap; }
.vlf-nav-links a:hover { background: var(--mint-100); }
.vlf-nav-extlink { display: inline-flex; align-items: center; gap: 4px; color: var(--fg-2); }
.vlf-nav-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.vlf-nav-link { font-size: 14px; font-weight: 500; color: var(--fg-2); }
.vlf-nav-link:hover { color: var(--fg-1); }

/* ---------- Hero ---------- */
.vlf-hero { position: relative; overflow: hidden; }
.vlf-hero-inner { max-width: 1200px; margin: 0 auto; padding: 96px 32px 80px; position: relative; z-index: 2; }
.vlf-hero-radial { position: absolute; right: -240px; top: -160px; width: 720px; height: 720px; background: radial-gradient(circle, rgba(31, 110, 55, 0.18), transparent 60%); z-index: 1; pointer-events: none; }
.vlf-hero-mark { position: absolute; right: -120px; top: -40px; width: 520px; height: 520px; z-index: 1; transform: rotate(-12deg); opacity: 0.92; }
.vlf-eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: var(--mint-100); border: 1px solid var(--voltgreen-200); color: var(--voltgreen-700); font-family: var(--font-body); font-size: 12px; font-weight: 600; letter-spacing: 0.02em; margin-bottom: 24px; }
.vlf-eyebrow-dot { width: 7px; height: 7px; border-radius: 999px; background: var(--voltgreen-500); }
.vlf-hero-title { font-family: var(--font-display); font-weight: 700; font-size: 80px; line-height: 84px; letter-spacing: -0.03em; color: var(--voltgreen-900); margin-bottom: 24px; max-width: 760px; }
.vlf-hero-sub { font-family: var(--font-body); font-size: 19px; line-height: 28px; color: var(--fg-2); max-width: 560px; margin-bottom: 32px; }
.vlf-hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Stats row ---------- */
.vlf-stats { max-width: 1200px; margin: 0 auto; padding: 24px 32px 80px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; border-bottom: 1px solid var(--grey-200); }
.vlf-stat { display: flex; flex-direction: column; gap: 6px; }
.vlf-stat-num { font-family: var(--font-display); font-weight: 700; font-size: 56px; line-height: 1; letter-spacing: -0.03em; color: var(--voltgreen-900); }
.vlf-stat-num .unit { font-size: 28px; color: var(--fg-2); margin-left: 4px; letter-spacing: -0.01em; }
.vlf-stat-num .prefix { color: var(--voltgreen-500); font-family: var(--font-mono); font-size: 38px; font-weight: 500; }
.vlf-stat-label { font-family: var(--font-body); font-size: 14px; color: var(--fg-2); }

/* ---------- Section heads ---------- */
.vlf-section-head { max-width: 1200px; margin: 0 auto; padding: 0 32px; margin-bottom: 40px; }
.vlf-caption { font-family: var(--font-body); font-size: 12px; font-weight: 600; color: var(--voltgreen-700); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 8px; }
.vlf-caption-on-dark { font-family: var(--font-body); font-size: 12px; font-weight: 600; color: var(--voltgreen-200); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 12px; }
.vlf-h2 { font-family: var(--font-display); font-weight: 700; font-size: 44px; line-height: 1.1; letter-spacing: -0.02em; color: var(--voltgreen-900); max-width: 720px; }
.vlf-h2-on-dark { color: var(--mint-50); }
.vlf-body { font-family: var(--font-body); font-size: 17px; line-height: 26px; color: var(--fg-2); max-width: 520px; }
.vlf-body-on-dark { color: var(--voltgreen-200); font-size: 17px; line-height: 26px; max-width: 540px; }

/* ---------- HowItWorks ---------- */
.vlf-how { max-width: 1200px; margin: 0 auto; padding: 96px 32px; position: relative; }
.vlf-how-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.vlf-step { background: white; border: 1px solid var(--grey-200); border-radius: 16px; padding: 28px; transition: background 120ms var(--ease-out); }
.vlf-step:hover { background: var(--mint-50); }
.vlf-step-head { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.vlf-step-n { font-family: var(--font-mono); font-size: 12px; color: var(--fg-3); font-weight: 500; }
.vlf-step-title { font-family: var(--font-display); font-weight: 600; font-size: 22px; letter-spacing: -0.01em; color: var(--voltgreen-900); margin-bottom: 8px; }
.vlf-step-body { font-family: var(--font-body); font-size: 15px; line-height: 24px; color: var(--fg-2); }
.vlf-how-board { position: absolute; right: 32px; top: 8px; width: 200px; opacity: 0.5; }

/* ---------- SpecGrid ---------- */
.vlf-spec { background: var(--bg-page); padding: 96px 0; border-top: 1px solid var(--grey-200); }
.vlf-spec-grid { max-width: 1200px; margin: 0 auto; padding: 0 32px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.vlf-spec-tile { background: white; border: 1px solid var(--grey-200); border-radius: 12px; padding: 22px; display: flex; flex-direction: column; gap: 6px; }
.vlf-spec-k { font-family: var(--font-body); font-size: 12px; color: var(--voltgreen-700); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.vlf-spec-v { font-family: var(--font-display); font-weight: 600; font-size: 24px; letter-spacing: -0.01em; color: var(--voltgreen-900); }
.vlf-spec-sub { font-family: var(--font-body); font-size: 13px; line-height: 20px; color: var(--fg-2); }

/* ---------- MinerPreview ---------- */
.vlf-mine { background: var(--cream-50); padding: 96px 0; border-top: 1px solid var(--grey-200); border-bottom: 1px solid var(--grey-200); }
.vlf-mine-grid { max-width: 1200px; margin: 0 auto; padding: 0 32px; display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: center; }
.vlf-mine-copy { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.vlf-mine-panel { background: var(--voltgreen-900); color: var(--mint-50); border-radius: 16px; padding: 24px; display: flex; flex-direction: column; gap: 18px; box-shadow: 0 24px 48px -16px rgba(14, 31, 18, 0.28); }
.vlf-mine-panel-top { display: flex; justify-content: space-between; align-items: center; }
.vlf-mine-status { display: flex; align-items: center; gap: 12px; }
.vlf-mono { font-family: var(--font-mono); font-size: 12px; color: var(--voltgreen-200); }
.vlf-pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-family: var(--font-body); font-size: 12px; font-weight: 600; border: 1px solid; }
.vlf-pill-dot { width: 6px; height: 6px; border-radius: 999px; }
.vlf-pill-success { background: rgba(47, 168, 79, 0.15); color: var(--voltgreen-200); border-color: rgba(47, 168, 79, 0.4); }
.vlf-pill-success .vlf-pill-dot { background: var(--voltgreen-500); }

.vlf-mine-readout { display: flex; flex-direction: column; gap: 8px; }
.vlf-readout-row { display: flex; align-items: baseline; gap: 8px; }
.vlf-readout-num { font-family: var(--font-display); font-weight: 700; font-size: 64px; line-height: 1; letter-spacing: -0.03em; color: var(--mint-50); }
.vlf-readout-unit { font-family: var(--font-body); font-size: 18px; color: var(--voltgreen-200); }
.vlf-bar { width: 100%; height: 6px; background: rgba(244, 250, 246, 0.1); border-radius: 999px; overflow: hidden; }
.vlf-bar-fill { height: 100%; background: linear-gradient(90deg, var(--voltgreen-500), var(--bolt-yellow)); border-radius: 999px; transition: width 600ms var(--ease-out); }
.vlf-readout-meta { display: flex; gap: 16px; font-family: var(--font-mono); font-size: 12px; color: var(--voltgreen-200); }
.vlf-mine-log { font-family: var(--font-mono); font-size: 12px; line-height: 20px; color: var(--mint-50); background: rgba(0,0,0, 0.25); padding: 12px 14px; border-radius: 8px; }
.vlf-mine-log .g { color: var(--voltgreen-300); }
.vlf-mine-log .y { color: var(--bolt-yellow); }

/* ---------- CTA banner ---------- */
.vlf-cta-banner { background: var(--voltgreen-900); padding: 96px 32px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 18px; position: relative; overflow: hidden; }
.vlf-cta-banner::before { content: ""; position: absolute; right: -120px; bottom: -120px; width: 360px; height: 360px; background: radial-gradient(circle, rgba(47,168,79, 0.18), transparent 60%); }
.vlf-cta-banner .vlf-h2 { max-width: 800px; }

/* ---------- Footer ---------- */
.vlf-footer { background: var(--voltgreen-900); color: var(--mint-50); padding: 64px 32px 24px; border-top: 1px solid rgba(255,255,255, 0.06); }
.vlf-footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1.4fr; gap: 32px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255, 0.08); }
.vlf-footer-brand p { font-family: var(--font-body); font-size: 14px; color: var(--voltgreen-200); margin: 14px 0 8px; max-width: 280px; line-height: 22px; }
.vlf-mono-dim { color: rgba(244, 250, 246, 0.4); }
.vlf-footer-col { display: flex; flex-direction: column; gap: 6px; }
.vlf-footer-col a { font-family: var(--font-body); font-size: 14px; color: var(--mint-50); padding: 4px 0; }
.vlf-footer-col a:hover { color: var(--bolt-yellow); }
.vlf-countdown { display: flex; gap: 14px; font-family: var(--font-display); font-weight: 700; font-size: 22px; color: var(--mint-50); margin-bottom: 14px; }
.vlf-countdown em { font-style: normal; font-size: 11px; color: var(--voltgreen-200); margin-left: 2px; letter-spacing: 0.04em; }
.vlf-footer-socials { display: flex; gap: 10px; }
.vlf-footer-socials a { width: 36px; height: 36px; border-radius: 8px; background: rgba(244, 250, 246, 0.06); display: inline-flex; align-items: center; justify-content: center; color: var(--mint-50); }
.vlf-footer-bottom { max-width: 1200px; margin: 0 auto; padding-top: 24px; display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 12px; color: rgba(244, 250, 246, 0.5); }

/* ---------- Responsiveness (cheap) ---------- */
@media (max-width: 980px) {
  .vlf-hero-title { font-size: 56px; line-height: 60px; }
  .vlf-stats { grid-template-columns: 1fr 1fr; }
  .vlf-how-grid, .vlf-spec-grid { grid-template-columns: 1fr; }
  .vlf-mine-grid { grid-template-columns: 1fr; }
  .vlf-footer-grid { grid-template-columns: 1fr 1fr; }
  .vlf-hero-mark { width: 360px; right: -120px; }
}