/* ==========================================================================
   LArrow - base.css
   Design tokens, reset, shared components (buttons, footer, support prompt).
   Loaded by every page. Page-specific rules live in home.css / legal.css.
   ========================================================================== */

:root {
  --green: #1db954;
  --green-hover: #1ed760;
  --bg: #121212;
  --bg-elevated: #181818;
  --bg-elevated-2: #1f1f1f;
  --text: #ffffff;
  --text-muted: #b3b3b3;
  --text-dim: #7a7a7a;
  --border: #2a2a2a;
  --radius: 16px;
  --radius-pill: 999px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--green);
  text-decoration: none;
}

a:hover {
  color: var(--green-hover);
}

img {
  max-width: 100%;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 22px;
}

/* Buttons ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  font-size: 15px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  transition: transform 0.12s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--green);
  color: #000;
}

.btn-primary:hover {
  background: var(--green-hover);
  color: #000;
}

.btn-ghost {
  border: 1px solid #535353;
  color: #fff;
  background: transparent;
}

.btn-ghost:hover {
  border-color: #fff;
  color: #fff;
}

/* Footer ------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 34px 0 50px;
  color: var(--text-dim);
  font-size: 13px;
}

.site-footer-inner {
  display: flex;
  gap: 18px;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.site-footer-copy,
.site-footer-note {
  margin: 0;
  color: var(--text-dim);
}

.site-footer-note {
  margin-top: 16px;
}

.site-footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.site-footer-links a {
  color: var(--text-muted);
}

.site-footer-links a:hover {
  color: #fff;
}

/* Support button + modal --------------------------------------------------- */
.support-fab {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--green);
  color: #000;
  border: none;
  font-family: inherit;
  font-weight: 700;
  font-size: 13px;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45);
  animation: support-breathe 7s ease-in-out infinite;
  transition: background 0.15s ease, transform 0.12s ease;
}

.support-fab:hover {
  background: var(--green-hover);
  animation: none;
  transform: scale(1.04);
}

.support-fab:active {
  transform: scale(0.97);
}

.support-fab svg {
  width: 16px;
  height: 16px;
  display: block;
  animation: support-wave 9s ease-in-out infinite;
}

@keyframes support-breathe {
  0%, 72%, 100% {
    transform: scale(1);
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.45), 0 0 0 0 rgba(29, 185, 84, 0);
  }
  84% {
    transform: scale(1.035);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45), 0 0 0 7px rgba(29, 185, 84, 0.12);
  }
}

@keyframes support-wave {
  0%, 86%, 100% { transform: rotate(0); }
  89% { transform: rotate(-12deg); }
  93% { transform: rotate(10deg); }
  97% { transform: rotate(-5deg); }
}

.support-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.72);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.support-overlay.open {
  display: flex;
}

.support-modal {
  position: relative;
  width: 100%;
  max-width: 390px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px 26px;
  text-align: center;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.7);
  animation: support-pop 0.25s ease;
}

@keyframes support-pop {
  from { opacity: 0; transform: scale(0.94); }
  to { opacity: 1; transform: scale(1); }
}

.support-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: transparent;
  border: none;
  border-radius: 10px;
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.support-close:hover {
  background: #242424;
  color: #fff;
}

.support-ico {
  width: 58px;
  height: 58px;
  margin: 0 auto 14px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--green);
  background: rgba(29, 185, 84, 0.14);
  border: 1px solid rgba(29, 185, 84, 0.4);
}

.support-ico svg {
  width: 28px;
  height: 28px;
}

.support-modal h3 {
  margin: 0 0 8px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #fff;
}

.support-modal p {
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--text-muted);
}

.support-qr {
  width: 212px;
  max-width: 100%;
  margin: 0 auto 14px;
  background: #fff;
  border-radius: var(--radius);
  padding: 12px;
}

.support-qr img {
  width: 100%;
  display: block;
  border-radius: 8px;
}

.support-qr-fallback {
  display: block;
  padding: 36px 8px;
  color: #555;
  font-size: 13px;
  font-weight: 600;
}

.support-hint {
  font-size: 12.5px;
  color: #8a8a8a;
  margin: 0 0 18px;
}

.support-btn {
  display: inline-block;
  width: 100%;
  background: var(--green);
  color: #000;
  border: none;
  font-family: inherit;
  font-weight: 700;
  font-size: 15px;
  padding: 13px 20px;
  border-radius: var(--radius-pill);
  cursor: pointer;
}

.support-btn:hover {
  background: var(--green-hover);
}

.support-skip {
  display: inline-block;
  margin-top: 14px;
  background: none;
  border: none;
  color: #8a8a8a;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
}

.support-skip:hover {
  color: #fff;
}

@media (prefers-reduced-motion: reduce) {
  .support-fab,
  .support-fab svg {
    animation: none;
  }
}

@media (max-width: 520px) {
  .support-modal {
    padding: 28px 20px 22px;
  }

  .support-qr {
    width: min(212px, 62vw);
  }
}