/* ========== RESET & BASE ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0f;
  --bg2: #111118;
  --bg3: #1a1a24;
  --border: rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.15);
  --text: #e8e8f0;
  --text-sub: #7878a0;
  --accent: #7c6dfa;
  --accent2: #fa6d9a;
  --accent-glow: rgba(124,109,250,0.25);
  --green: #4ade80;
  --red: #f87171;
  --yellow: #fbbf24;
  --radius: 14px;
  --radius-sm: 8px;
  --font-main: 'Syne', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ========== BACKGROUND ========== */
.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,109,250,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,109,250,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
}
.orb-1 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #7c6dfa, transparent 70%);
  top: -100px; right: -100px;
}
.orb-2 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #fa6d9a, transparent 70%);
  bottom: -80px; left: -80px;
}

/* ========== HEADER ========== */
.header {
  position: relative; z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  background: rgba(10,10,15,0.6);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-main);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.5px;
}
.logo-icon { color: var(--accent); font-size: 1.1rem; }
.logo-accent { color: var(--accent); }

.brand-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-sub);
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}

/* ========== APP CONTAINER ========== */
.app-container {
  position: relative; z-index: 10;
  max-width: 480px;
  margin: 32px auto;
  padding: 0 16px 60px;
}

/* ========== TAB NAV ========== */
.tab-nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px;
  margin-bottom: 24px;
}

.tab-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 8px;
  border: none;
  background: transparent;
  color: var(--text-sub);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--text); background: var(--bg3); }
.tab-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.tab-btn svg { flex-shrink: 0; }

/* ========== TAB PANEL ========== */
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp 0.3s ease; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.panel-inner {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.panel-sub {
  font-size: 0.82rem;
  color: var(--text-sub);
}
.highlight { color: var(--accent2); font-weight: 700; }

/* ========== FORM ========== */
.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.form-input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
  -webkit-appearance: none;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-input::placeholder { color: var(--text-sub); opacity: 0.6; }

.form-select { cursor: pointer; }
.form-select option { background: var(--bg3); }

.input-wrap { position: relative; }
.input-prefix {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--text-sub);
  font-size: 0.9rem;
  pointer-events: none;
}
.has-prefix { padding-left: 38px; }

/* ========== FEE BOX ========== */
.fee-box {
  background: rgba(124,109,250,0.06);
  border: 1px solid rgba(124,109,250,0.2);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeUp 0.25s ease;
}
.fee-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  color: var(--text-sub);
}
.fee-row span:last-child { font-family: var(--font-mono); color: var(--text); }
.total-row {
  padding-top: 8px;
  border-top: 1px solid var(--border);
  font-weight: 700;
  color: var(--text) !important;
}
.total-row span { color: var(--text) !important; }
.accent-text { color: var(--accent2) !important; }

/* ========== BUTTONS ========== */
.btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.3px;
}
.btn-primary:hover {
  background: #9181fc;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px var(--accent-glow);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary.loading { opacity: 0.7; pointer-events: none; }

.btn-danger { background: var(--accent2); }
.btn-danger:hover { background: #fb89b0; box-shadow: 0 6px 24px rgba(250,109,154,0.3); }

.btn-icon { font-size: 1.1rem; transition: transform 0.2s; }
.btn-primary:hover .btn-icon { transform: translateX(3px); }

.btn-copy {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text-sub);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-copy:hover { border-color: var(--accent); color: var(--accent); }

/* ========== QR RESULT ========== */
.qr-result {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  animation: fadeUp 0.3s ease;
}

.qr-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
#qr-canvas {
  border-radius: 8px;
  border: 3px solid var(--accent);
  padding: 8px;
  background: #fff;
}
.qr-label {
  font-size: 0.72rem;
  color: var(--text-sub);
  text-align: center;
}

.order-info {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.order-id-label { font-size: 0.72rem; color: var(--text-sub); }
.order-id-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  background: rgba(124,109,250,0.1);
  padding: 3px 8px;
  border-radius: 4px;
}

/* ========== COUNTDOWN ========== */
.countdown-bar { width: 100%; }
.countdown-label {
  font-size: 0.75rem;
  color: var(--text-sub);
  text-align: center;
  margin-bottom: 6px;
}
.countdown-label span { color: var(--yellow); font-family: var(--font-mono); font-weight: 700; }
.countdown-track {
  width: 100%;
  height: 4px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
}
.countdown-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 4px;
  transition: width 1s linear;
}

/* ========== STATUS ========== */
.status-result { animation: fadeUp 0.3s ease; display: flex; flex-direction: column; gap: 12px; }

.status-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
}
.status-icon-wrap {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
  background: var(--bg);
  border: 2px solid var(--border);
}
.status-label { font-weight: 700; font-size: 0.95rem; }
.status-detail { font-size: 0.78rem; color: var(--text-sub); margin-top: 2px; }

.status-icon-wrap.pending { border-color: var(--yellow); background: rgba(251,191,36,0.1); }
.status-icon-wrap.success { border-color: var(--green); background: rgba(74,222,128,0.1); }
.status-icon-wrap.failed  { border-color: var(--red);   background: rgba(248,113,113,0.1); }

.status-meta {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.meta-row {
  display: flex; justify-content: space-between;
  font-size: 0.83rem;
  color: var(--text-sub);
}
.meta-row span:last-child {
  font-family: var(--font-mono);
  color: var(--text);
  font-size: 0.8rem;
}

/* ========== WITHDRAW RESULT ========== */
.success-banner {
  display: flex; align-items: center; gap: 14px;
  background: rgba(74,222,128,0.08);
  border: 1px solid rgba(74,222,128,0.25);
  border-radius: var(--radius-sm);
  padding: 16px;
  animation: fadeUp 0.3s ease;
}
.success-icon {
  width: 40px; height: 40px;
  background: rgba(74,222,128,0.15);
  border: 2px solid var(--green);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: var(--green);
  flex-shrink: 0;
}
.success-title { font-weight: 700; font-size: 0.95rem; color: var(--green); }
.success-sub { font-size: 0.78rem; color: var(--text-sub); margin-top: 2px; }

/* ========== TOAST ========== */
.toast {
  position: fixed;
  bottom: 28px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 10px 20px;
  border-radius: 20px;
  z-index: 999;
  opacity: 0;
  transition: all 0.3s ease;
  white-space: nowrap;
  pointer-events: none;
  backdrop-filter: blur(10px);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error   { border-color: var(--red);   color: var(--red); }

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 4px; }

/* ========== MOBILE ========== */
@media (max-width: 480px) {
  .panel-inner { padding: 20px 16px; }
  .header { padding: 16px; }
}