/* ============================================================
   BLOCKCHAIN TRANSACTION REPORTS — High-Tech Design Framework
   ============================================================ */

/* ---- CSS Custom Properties / Design Tokens ---- */
:root {
  /* Core Brand Palette */
  --btr-black:        #050810;
  --btr-dark:         #0a0d1a;
  --btr-navy:         #0d1224;
  --btr-card:         #111828;
  --btr-card-hover:   #161f35;
  --btr-border:       rgba(99,179,237,0.15);
  --btr-border-glow:  rgba(99,179,237,0.40);

  /* Accent – Electric Cyan */
  --accent-cyan:      #00e5ff;
  --accent-cyan-dim:  rgba(0,229,255,0.12);
  --accent-cyan-glow: 0 0 20px rgba(0,229,255,0.4);

  /* Accent – Violet */
  --accent-violet:    #7c3aed;
  --accent-violet-lg: linear-gradient(135deg,#7c3aed,#a855f7);
  --accent-violet-dim:rgba(124,58,237,0.15);

  /* Accent – Emerald (success) */
  --accent-green:     #10b981;
  --accent-green-dim: rgba(16,185,129,0.15);

  /* Accent – Amber (warning / trial) */
  --accent-amber:     #f59e0b;
  --accent-amber-dim: rgba(245,158,11,0.15);

  /* Accent – Rose (danger) */
  --accent-rose:      #f43f5e;
  --accent-rose-dim:  rgba(244,63,94,0.15);

  /* Primary gradient (buttons, hero) */
  --grad-primary:     linear-gradient(135deg, #00e5ff 0%, #7c3aed 100%);
  --grad-primary-rev: linear-gradient(135deg, #7c3aed 0%, #00e5ff 100%);
  --grad-dark:        linear-gradient(135deg, #0a0d1a 0%, #0d1224 100%);
  --grad-card:        linear-gradient(145deg, #111828, #0d1224);

  /* Text */
  --text-primary:   #f0f4ff;
  --text-secondary: #8899bb;
  --text-muted:     #4a5680;
  --text-inverse:   #050810;

  /* Typography */
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Spacing scale */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
  --sp-5: 20px; --sp-6: 24px; --sp-8: 32px; --sp-10: 40px;
  --sp-12: 48px; --sp-16: 64px; --sp-20: 80px;

  /* Radius */
  --r-sm: 6px; --r-md: 10px; --r-lg: 16px; --r-xl: 24px; --r-full: 9999px;

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4);
  --shadow-md:  0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg:  0 8px 48px rgba(0,0,0,0.6);
  --shadow-cyan:0 0 30px rgba(0,229,255,0.25);
  --shadow-vlt: 0 0 30px rgba(124,58,237,0.35);

  /* Transitions */
  --t-fast: 150ms ease;
  --t-base: 250ms ease;
  --t-slow: 400ms ease;

  /* Z-index layers */
  --z-below:   -1;
  --z-base:     1;
  --z-card:    10;
  --z-sticky:  100;
  --z-modal:   1000;
  --z-toast:   2000;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--btr-black);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--btr-dark); }
::-webkit-scrollbar-thumb { background: rgba(99,179,237,0.3); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-cyan); }

/* ---- Selection ---- */
::selection { background: rgba(0,229,255,0.25); color: var(--text-primary); }

/* ---- Typography ---- */
h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }

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

.text-muted    { color: var(--text-muted); }
.text-secondary{ color: var(--text-secondary); }
.text-cyan     { color: var(--accent-cyan); }
.text-violet   { color: #a855f7; }
.text-green    { color: var(--accent-green); }
.text-amber    { color: var(--accent-amber); }
.text-rose     { color: var(--accent-rose); }
.font-mono     { font-family: var(--font-mono); }

/* ---- Layout ---- */
.container     { max-width: 1280px; margin: 0 auto; padding: 0 var(--sp-6); }
.container-sm  { max-width: 800px;  margin: 0 auto; padding: 0 var(--sp-6); }
.container-xs  { max-width: 480px;  margin: 0 auto; padding: 0 var(--sp-6); }
.section       { padding: var(--sp-20) 0; }
.section-sm    { padding: var(--sp-12) 0; }

/* Grid */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-6); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-6); }
@media(max-width:1024px){ .grid-4{grid-template-columns:repeat(2,1fr);} }
@media(max-width:768px) { .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;} }

/* Flex helpers */
.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col     { display: flex; flex-direction: column; }
.flex-wrap    { flex-wrap: wrap; }
.gap-2  { gap: var(--sp-2); }
.gap-3  { gap: var(--sp-3); }
.gap-4  { gap: var(--sp-4); }
.gap-6  { gap: var(--sp-6); }
.gap-8  { gap: var(--sp-8); }

/* ---- Card ---- */
.card {
  background: var(--grad-card);
  border: 1px solid var(--btr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-base);
}
.card:hover {
  border-color: var(--btr-border-glow);
  box-shadow: var(--shadow-cyan);
  transform: translateY(-2px);
}
.card-flat {
  background: var(--btr-card);
  border: 1px solid var(--btr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
}
.card-glow {
  background: var(--grad-card);
  border: 1px solid rgba(0,229,255,0.3);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow-cyan);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 10px 22px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: none;
  border-radius: var(--r-full);
  cursor: pointer;
  transition: all var(--t-base);
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--t-fast);
}
.btn:hover::before  { background: rgba(255,255,255,0.07); }
.btn:active::before { background: rgba(255,255,255,0.12); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  background: var(--grad-primary);
  color: var(--text-inverse);
  box-shadow: 0 4px 20px rgba(0,229,255,0.3);
}
.btn-primary:hover { box-shadow: 0 6px 28px rgba(0,229,255,0.5); transform: translateY(-1px); }

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--btr-border-glow);
}
.btn-secondary:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }

.btn-violet {
  background: var(--accent-violet-lg);
  color: white;
  box-shadow: 0 4px 20px rgba(124,58,237,0.35);
}
.btn-violet:hover { box-shadow: 0 6px 28px rgba(124,58,237,0.55); transform: translateY(-1px); }

.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  border: 1px solid var(--btr-border);
}
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }

.btn-danger {
  background: var(--accent-rose-dim);
  color: var(--accent-rose);
  border: 1px solid rgba(244,63,94,0.3);
}
.btn-danger:hover { background: var(--accent-rose); color: white; }

.btn-success {
  background: var(--accent-green-dim);
  color: var(--accent-green);
  border: 1px solid rgba(16,185,129,0.3);
}
.btn-success:hover { background: var(--accent-green); color: white; }

.btn-sm { padding: 7px 16px; font-size: 0.8rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-xl { padding: 18px 44px; font-size: 1.1rem; font-weight: 700; }
.btn-block { width: 100%; }

/* Loading spinner inside button */
.btn .spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}
.btn.loading .spinner { display: block; }
.btn.loading .btn-text { opacity: 0.6; }

/* ---- Badges ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  border-radius: var(--r-full);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-cyan    { background: var(--accent-cyan-dim);   color: var(--accent-cyan); border: 1px solid rgba(0,229,255,0.2); }
.badge-violet  { background: var(--accent-violet-dim); color: #a855f7; border: 1px solid rgba(124,58,237,0.3); }
.badge-green   { background: var(--accent-green-dim);  color: var(--accent-green); border: 1px solid rgba(16,185,129,0.3); }
.badge-amber   { background: var(--accent-amber-dim);  color: var(--accent-amber); border: 1px solid rgba(245,158,11,0.3); }
.badge-rose    { background: var(--accent-rose-dim);   color: var(--accent-rose);  border: 1px solid rgba(244,63,94,0.3); }
.badge-muted   { background: rgba(255,255,255,0.05);   color: var(--text-secondary); }

/* ---- Form elements ---- */
.form-group { margin-bottom: var(--sp-5); }
.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--sp-2);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.form-control {
  width: 100%;
  padding: 11px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--btr-border);
  border-radius: var(--r-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: border-color var(--t-base), box-shadow var(--t-base);
  outline: none;
}
.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.12);
}
.form-control::placeholder { color: var(--text-muted); }
.form-control.has-icon-left  { padding-left: 42px; }
.form-control.has-icon-right { padding-right: 42px; }

.form-input-wrap { position: relative; }
.form-input-icon {
  position: absolute; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none; font-size: 1rem;
}
.form-input-icon.left  { left: 14px; }
.form-input-icon.right { right: 14px; pointer-events: auto; cursor: pointer; }

.form-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: var(--sp-1); }
.form-error{ font-size: 0.78rem; color: var(--accent-rose); margin-top: var(--sp-1); }

/* Password strength */
.strength-bar { height: 4px; border-radius: 2px; background: rgba(255,255,255,0.08); margin-top: 8px; overflow: hidden; }
.strength-bar-fill { height: 100%; border-radius: 2px; transition: width 0.4s ease, background 0.4s ease; }

/* Select */
select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%238899bb' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}
select.form-control option { background: var(--btr-card); }

/* Textarea */
textarea.form-control { resize: vertical; min-height: 90px; }

/* Checkbox / Radio */
.check-group { display: flex; align-items: center; gap: var(--sp-3); cursor: pointer; }
.check-group input[type=checkbox], .check-group input[type=radio] {
  width: 18px; height: 18px;
  accent-color: var(--accent-cyan);
  cursor: pointer;
}

/* ---- Navbar ---- */
.navbar {
  position: sticky; top: 0; z-index: var(--z-sticky);
  background: rgba(5,8,16,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--btr-border);
  padding: 0 var(--sp-6);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-brand {
  display: flex; align-items: center; gap: var(--sp-3);
  text-decoration: none;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.navbar-brand-icon {
  width: 34px; height: 34px;
  background: var(--grad-primary);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-cyan);
}
.navbar-brand-text { color: var(--text-primary); }
.navbar-brand-text span { color: var(--accent-cyan); }
.navbar-nav { display: flex; align-items: center; gap: var(--sp-1); }
.nav-link {
  padding: 8px 14px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.87rem;
  font-weight: 500;
  border-radius: var(--r-md);
  transition: all var(--t-base);
  display: flex; align-items: center; gap: 6px;
}
.nav-link:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
.nav-link.active { color: var(--accent-cyan); background: var(--accent-cyan-dim); }
.nav-link.admin-only { color: var(--accent-amber); }
.nav-link.admin-only:hover { color: #fcd34d; background: var(--accent-amber-dim); }

/* Mobile nav toggle */
.nav-toggle { display: none; background: none; border: none; color: var(--text-primary); font-size: 1.4rem; cursor: pointer; }
@media(max-width:768px){
  .nav-toggle { display: block; }
  .navbar-nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: var(--btr-dark); border-bottom: 1px solid var(--btr-border);
    flex-direction: column; padding: var(--sp-4); gap: var(--sp-1);
  }
  .navbar-nav.open { display: flex; }
  .nav-link { width: 100%; }
}

/* ---- Hero background ---- */
.hero-bg {
  position: relative;
  overflow: hidden;
  background: radial-gradient(ellipse at 20% 50%, rgba(0,229,255,0.05) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(124,58,237,0.08) 0%, transparent 60%),
              var(--btr-black);
}
.hero-bg::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.hero-particles {
  position: absolute; inset: 0; pointer-events: none; overflow: hidden;
}
.particle {
  position: absolute;
  width: 2px; height: 2px;
  background: var(--accent-cyan);
  border-radius: 50%;
  animation: float-particle 8s linear infinite;
  opacity: 0.6;
}

/* ---- Stat card ---- */
.stat-card {
  background: var(--grad-card);
  border: 1px solid var(--btr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  display: flex; flex-direction: column; gap: var(--sp-2);
}
.stat-icon { font-size: 1.8rem; }
.stat-value { font-size: 2rem; font-weight: 800; font-family: var(--font-mono); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.07em; }
.stat-change { font-size: 0.8rem; display: flex; align-items: center; gap: 4px; }
.stat-change.up   { color: var(--accent-green); }
.stat-change.down { color: var(--accent-rose); }

/* ---- Progress bar ---- */
.progress { height: 6px; background: rgba(255,255,255,0.07); border-radius: 3px; overflow: hidden; }
.progress-bar {
  height: 100%;
  background: var(--grad-primary);
  border-radius: 3px;
  transition: width 0.6s ease;
  position: relative;
  overflow: hidden;
}
.progress-bar::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  animation: shimmer 1.5s infinite;
}

/* ---- Table ---- */
.table-wrapper { overflow-x: auto; border-radius: var(--r-lg); border: 1px solid var(--btr-border); }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
thead { background: rgba(0,229,255,0.05); }
thead th {
  padding: 12px 14px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  border-bottom: 1px solid var(--btr-border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: color var(--t-fast);
}
thead th:hover { color: var(--text-primary); }
thead th.sort-asc,
thead th.sort-desc { color: var(--accent-cyan); }
.sort-icon { display: inline-flex; flex-direction: column; margin-left: 4px; gap: 1px; vertical-align: middle; }
.sort-icon svg { width: 8px; height: 8px; opacity: 0.4; }
.sort-asc .sort-icon svg:first-child  { opacity: 1; fill: var(--accent-cyan); }
.sort-desc .sort-icon svg:last-child  { opacity: 1; fill: var(--accent-cyan); }
tbody tr { border-bottom: 1px solid rgba(255,255,255,0.04); transition: background var(--t-fast); }
tbody tr:hover { background: rgba(0,229,255,0.03); }
tbody tr:last-child { border-bottom: none; }
td { padding: 11px 14px; color: var(--text-secondary); vertical-align: middle; }
td.hash { font-family: var(--font-mono); font-size: 0.78rem; color: var(--accent-cyan); cursor: pointer; }
td.hash:hover { text-decoration: underline; }
td.value-pos { color: var(--accent-green); font-weight: 600; }
td.value-neg { color: var(--accent-rose); font-weight: 600; }

/* ---- Modal ---- */
.modal-overlay {
  position: fixed; inset: 0; z-index: var(--z-modal);
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
  animation: fade-in 0.2s ease;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--btr-navy);
  border: 1px solid var(--btr-border-glow);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: scale-in 0.25s ease;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--sp-6);
}
.modal-title { font-size: 1.2rem; font-weight: 700; }
.modal-close {
  background: none; border: none; color: var(--text-muted);
  font-size: 1.3rem; cursor: pointer; padding: 4px; border-radius: var(--r-sm);
  transition: color var(--t-fast);
}
.modal-close:hover { color: var(--accent-rose); }
.modal-footer { display: flex; gap: var(--sp-3); justify-content: flex-end; margin-top: var(--sp-6); }

/* ---- Toast ---- */
.toast-container {
  position: fixed; bottom: 24px; right: 24px;
  z-index: var(--z-toast);
  display: flex; flex-direction: column; gap: var(--sp-3);
  pointer-events: none;
}
.toast {
  background: var(--btr-card);
  border: 1px solid var(--btr-border-glow);
  border-radius: var(--r-lg);
  padding: 14px 18px;
  display: flex; align-items: center; gap: var(--sp-3);
  min-width: 280px; max-width: 400px;
  box-shadow: var(--shadow-lg);
  animation: slide-in-right 0.3s ease;
  pointer-events: auto;
  font-size: 0.87rem;
}
.toast-icon { font-size: 1.1rem; flex-shrink: 0; }
.toast-text { flex: 1; color: var(--text-primary); font-weight: 500; }
.toast-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1rem; padding: 0 0 0 8px; }
.toast.success { border-color: rgba(16,185,129,0.4); }
.toast.error   { border-color: rgba(244,63,94,0.4); }
.toast.warning { border-color: rgba(245,158,11,0.4); }
.toast.info    { border-color: rgba(0,229,255,0.4); }
.toast.hiding  { animation: slide-out-right 0.3s ease forwards; }

/* ---- Divider ---- */
.divider { border: none; border-top: 1px solid var(--btr-border); margin: var(--sp-6) 0; }
.divider-text {
  position: relative; text-align: center; color: var(--text-muted);
  font-size: 0.8rem; margin: var(--sp-5) 0;
}
.divider-text::before, .divider-text::after {
  content: ''; position: absolute; top: 50%;
  width: calc(50% - 20px); height: 1px;
  background: var(--btr-border);
}
.divider-text::before { left: 0; }
.divider-text::after  { right: 0; }

/* ---- Glow effects ---- */
.glow-cyan   { box-shadow: var(--shadow-cyan); }
.glow-violet { box-shadow: var(--shadow-vlt); }
.glow-text-cyan   { text-shadow: 0 0 20px rgba(0,229,255,0.6); }
.glow-text-violet { text-shadow: 0 0 20px rgba(168,85,247,0.6); }

/* ---- Paywall badge ---- */
.paywall-lock {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px;
  background: var(--accent-amber-dim);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: var(--r-full);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-amber);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---- Subscription plan card ---- */
.plan-card {
  background: var(--grad-card);
  border: 1px solid var(--btr-border);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  display: flex; flex-direction: column;
  position: relative;
  transition: all var(--t-base);
}
.plan-card:hover {
  border-color: var(--btr-border-glow);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.plan-card.featured {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-cyan);
}
.plan-card.featured::before {
  content: 'Most Popular';
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--grad-primary);
  color: var(--text-inverse);
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
  padding: 4px 14px; border-radius: var(--r-full);
}
.plan-name  { font-size: 1rem; font-weight: 700; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.08em; }
.plan-price { margin: var(--sp-3) 0; }
.plan-price .amount { font-size: 2.8rem; font-weight: 800; font-family: var(--font-mono); color: var(--text-primary); }
.plan-price .period { font-size: 0.9rem; color: var(--text-muted); }
.plan-desc  { font-size: 0.85rem; color: var(--text-muted); margin-bottom: var(--sp-5); }
.plan-features { list-style: none; flex: 1; margin-bottom: var(--sp-6); }
.plan-features li {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-2) 0; font-size: 0.87rem; color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.plan-features li:last-child { border-bottom: none; }
.plan-features .feat-icon { width: 18px; flex-shrink: 0; }
.feat-yes { color: var(--accent-green); }
.feat-no  { color: var(--text-muted); text-decoration: line-through; }

/* ---- Payment methods ---- */
.payment-methods { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-3); }
.payment-option {
  border: 2px solid var(--btr-border);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  cursor: pointer;
  transition: all var(--t-base);
  display: flex; align-items: center; justify-content: center; gap: var(--sp-3);
  font-size: 0.87rem; font-weight: 600; color: var(--text-secondary);
  background: rgba(255,255,255,0.02);
}
.payment-option:hover { border-color: var(--btr-border-glow); color: var(--text-primary); background: rgba(255,255,255,0.05); }
.payment-option.selected { border-color: var(--accent-cyan); color: var(--text-primary); background: var(--accent-cyan-dim); box-shadow: 0 0 0 3px rgba(0,229,255,0.1); }
.payment-option img { height: 22px; object-fit: contain; }

/* ---- Animations ---- */
@keyframes spin       { to { transform: rotate(360deg); } }
@keyframes fade-in    { from { opacity: 0; } to { opacity: 1; } }
@keyframes scale-in   { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
@keyframes slide-in-right   { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slide-out-right  { to { opacity: 0; transform: translateX(30px); } }
@keyframes float-particle {
  0%   { transform: translateY(100vh) translateX(0); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.6; }
  100% { transform: translateY(-10vh) translateX(40px); opacity: 0; }
}
@keyframes shimmer { from { transform: translateX(-100%); } to { transform: translateX(100%); } }
@keyframes pulse-glow {
  0%, 100% { box-shadow: var(--shadow-cyan); }
  50%       { box-shadow: 0 0 50px rgba(0,229,255,0.6); }
}
@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes count-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.animate-pulse-glow    { animation: pulse-glow 2.5s ease-in-out infinite; }
.animate-gradient      { background-size: 200% 200%; animation: gradient-shift 4s ease infinite; }
.animate-fade-in       { animation: fade-in 0.5s ease both; }
.animate-count-up      { animation: count-up 0.5s ease both; }

/* ---- Utility ---- */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cursor-pointer { cursor: pointer; }
.w-full { width: 100%; }
.mt-1 { margin-top: var(--sp-1); }
.mt-2 { margin-top: var(--sp-2); }
.mt-4 { margin-top: var(--sp-4); }
.mt-6 { margin-top: var(--sp-6); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-6 { margin-bottom: var(--sp-6); }
.p-4  { padding: var(--sp-4); }
.p-6  { padding: var(--sp-6); }
.rounded { border-radius: var(--r-md); }
.rounded-full { border-radius: var(--r-full); }
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-sm     { font-size: 0.85rem; }
.text-xs     { font-size: 0.75rem; }
.font-bold   { font-weight: 700; }
.font-semibold { font-weight: 600; }
.opacity-50  { opacity: 0.5; }
.relative    { position: relative; }
.pointer-events-none { pointer-events: none; }

/* ---- Responsive helpers ---- */
@media(max-width:768px) {
  .hide-mobile { display: none !important; }
  .modal { padding: var(--sp-6); }
  .payment-methods { grid-template-columns: 1fr; }
}
@media(min-width:769px) {
  .hide-desktop { display: none !important; }
}