:root {
  --bg: #0b1120;
  --bg-elevated: #111827;
  --surface: rgba(17, 24, 39, 0.85);
  --surface-hover: rgba(30, 41, 59, 0.9);
  --border: rgba(148, 163, 184, 0.14);
  --border-strong: rgba(148, 163, 184, 0.28);
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --accent-glow: rgba(56, 189, 248, 0.18);
  --success: #34d399;
  --success-glow: rgba(52, 211, 153, 0.12);
  --gradient: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
  --transition: 0.2s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(14, 165, 233, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(99, 102, 241, 0.1), transparent),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

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

/* ── Layout ── */
.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}

.topbar-link {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: var(--transition);
  white-space: nowrap;
}
.topbar-link:hover {
  color: var(--text);
  border-color: var(--border-strong);
  background: var(--surface);
  text-decoration: none;
}

/* ── Header ── */
header {
  text-align: center;
  margin-bottom: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--gradient);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.3);
}

header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

header p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* ── Document tabs ── */
.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
}

.tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.tab-icon { font-size: 1.4rem; line-height: 1; }

.tab:hover {
  color: var(--text);
  background: var(--surface-hover);
}

.tab.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.35);
}

.tab.active .tab-desc { color: rgba(255, 255, 255, 0.75); }

.tab-desc {
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-dim);
}

/* ── Form ── */
form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.form-section {
  margin-bottom: 24px;
}

.form-section:last-of-type { margin-bottom: 0; }

.form-section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.form-section-title span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
}

label.full { grid-column: 1 / -1; }

input, textarea {
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
}

input::placeholder, textarea::placeholder { color: var(--text-dim); }

input:hover, textarea:hover {
  border-color: rgba(148, 163, 184, 0.4);
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

textarea { resize: vertical; min-height: 80px; }

/* ── Items table ── */
.items-block { margin-top: 4px; }

.items-header {
  display: grid;
  grid-template-columns: 2fr 0.7fr 1fr 36px;
  gap: 8px;
  padding: 0 0 6px 0;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.item-row {
  display: grid;
  grid-template-columns: 2fr 0.7fr 1fr 36px;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}

.item-row input { width: 100%; }

.btn-remove {
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  transition: var(--transition);
  display: grid;
  place-items: center;
}

.btn-remove:hover {
  color: #f87171;
  border-color: rgba(248, 113, 113, 0.4);
  background: rgba(248, 113, 113, 0.08);
}

.btn-remove:disabled {
  opacity: 0.25;
  cursor: not-allowed;
  pointer-events: none;
}

.items-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  gap: 12px;
  flex-wrap: wrap;
}

.total-preview {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.total-preview strong {
  color: var(--success);
  font-size: 1.1rem;
  margin-left: 4px;
}

.btn-ghost {
  padding: 9px 16px;
  background: transparent;
  border: 1px dashed var(--border-strong);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: var(--transition);
}

.btn-ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* ── Submit ── */
.btn-main {
  width: 100%;
  margin-top: 24px;
  padding: 15px 24px;
  font-size: 1rem;
  font-weight: 700;
  background: var(--gradient);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.3);
}

.btn-main:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(14, 165, 233, 0.4);
}

.btn-main:active:not(:disabled) { transform: translateY(0); }

.btn-main:disabled {
  opacity: 0.7;
  cursor: wait;
}

.btn-main .spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}

.btn-main.loading .spinner { display: block; }
.btn-main.loading .btn-text { opacity: 0.85; }

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

/* ── Portfolio ── */
.portfolio {
  margin-top: 32px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.portfolio h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.portfolio > p {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.portfolio-card {
  padding: 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.portfolio-card:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.portfolio-card .doc-type {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 6px;
}

.doc-type.kp { background: rgba(56, 189, 248, 0.15); color: var(--accent); }
.doc-type.invoice { background: rgba(52, 211, 153, 0.15); color: var(--success); }
.doc-type.act { background: rgba(167, 139, 250, 0.15); color: #a78bfa; }

/* ── Earn section ── */
.earn {
  margin-top: 24px;
  padding: 24px;
  background: var(--success-glow);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-lg);
}

.earn h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--success);
  display: flex;
  align-items: center;
  gap: 8px;
}

.earn ol {
  padding-left: 20px;
  line-height: 1.8;
  color: #cbd5e1;
  font-size: 0.9rem;
}

.earn ol li { margin-bottom: 4px; }

.earn .hint {
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-dim);
  padding-top: 12px;
  border-top: 1px solid rgba(52, 211, 153, 0.15);
}

code {
  background: var(--bg-elevated);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 0.85em;
  border: 1px solid var(--border);
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 12px 20px;
  background: #1e293b;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: 0.3s ease;
  z-index: 100;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error { border-color: rgba(248, 113, 113, 0.4); color: #fca5a5; }

/* ── Landing page ── */
.landing {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 20px;
  text-align: center;
}

.landing h1 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.3;
  background: linear-gradient(135deg, #fff 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.landing .subtitle {
  color: var(--text-muted);
  margin-top: 12px;
  font-size: 1rem;
}

.price {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 32px 0;
}

.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 28px;
  min-width: 140px;
  transition: var(--transition);
}

.price-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.price-card strong {
  font-size: 1.5rem;
  color: var(--success);
  display: block;
  margin-bottom: 4px;
}

.price-card span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.kaspi {
  font-size: 1.1rem;
  background: var(--bg-elevated);
  padding: 20px 24px;
  border-radius: var(--radius);
  border: 2px solid rgba(52, 211, 153, 0.35);
  margin: 24px 0;
  box-shadow: 0 0 32px var(--success-glow);
}

.kaspi strong {
  font-size: 1.4rem;
  color: var(--success);
  display: block;
  margin-top: 4px;
}

.landing-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--gradient);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: 0 8px 24px rgba(14, 165, 233, 0.25);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(14, 165, 233, 0.35);
  text-decoration: none;
}

.btn-wa {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  box-shadow: 0 8px 24px rgba(34, 197, 94, 0.25);
}

.btn-wa:hover { box-shadow: 0 12px 32px rgba(34, 197, 94, 0.35); }

.landing-footer {
  margin-top: 36px;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
}

/* ── Viral page (/schet) ── */
.viral-body {
  background:
    radial-gradient(ellipse 100% 60% at 50% -10%, rgba(34, 197, 94, 0.18), transparent),
    radial-gradient(ellipse 50% 40% at 100% 50%, rgba(14, 165, 233, 0.12), transparent),
    var(--bg);
}

.viral-wrap {
  max-width: 420px;
  margin: 0 auto;
  padding: 20px 16px 40px;
  min-height: 100vh;
}

.viral-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--success);
  margin-bottom: 20px;
}

.viral-hero h1 {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text);
}

.viral-hero h1 span {
  background: linear-gradient(135deg, #22c55e, #0ea5e9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.viral-hero p {
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.viral-proof {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 18px 0 22px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.viral-proof .pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 1.5s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.viral-proof #counter {
  font-weight: 700;
  color: var(--success);
}

.viral-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.viral-form label span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: block;
}

.viral-form label small {
  font-weight: 400;
  color: var(--text-dim);
}

.viral-form input {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  border-radius: 12px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elevated);
  color: var(--text);
}

.viral-form input:focus {
  outline: none;
  border-color: var(--success);
  box-shadow: 0 0 0 3px var(--success-glow);
}

.viral-cta {
  margin-top: 8px;
  width: 100%;
  padding: 18px 24px;
  font-size: 1.1rem;
  font-weight: 800;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  color: #fff;
  background: linear-gradient(135deg, #22c55e, #16a34a);
  box-shadow: 0 12px 32px rgba(34, 197, 94, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: var(--transition);
}

.viral-cta:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(34, 197, 94, 0.45);
}

.viral-cta:disabled { opacity: 0.75; cursor: wait; }
.viral-cta .spinner {
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: none;
}
.viral-cta.loading .spinner { display: block; }

.viral-success {
  text-align: center;
  padding: 32px 16px;
  animation: fadeUp 0.4s ease;
}

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

.success-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--success-glow);
  border: 2px solid rgba(34, 197, 94, 0.4);
  color: var(--success);
  font-size: 2rem;
  line-height: 64px;
}

.viral-success h2 { font-size: 1.5rem; margin-bottom: 8px; }
.viral-success p { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 20px; }

.share-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 16px;
}

.share-btns button {
  flex: 1;
  max-width: 160px;
  padding: 14px;
  border: none;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  color: #fff;
}

.share-wa { background: #22c55e; }
.share-tg { background: #0ea5e9; }

.viral-again {
  background: transparent;
  border: 1px dashed var(--border-strong);
  color: var(--text-muted);
  padding: 12px 24px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 0.9rem;
}

.viral-why { margin-top: 32px; }

.why-card {
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.why-card strong { color: var(--text); display: block; margin-bottom: 6px; }

.viral-upsell {
  margin-top: 28px;
}

.upsell-inner {
  padding: 22px 20px;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.12), rgba(167, 139, 250, 0.1));
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: var(--radius);
  text-align: center;
}

.upsell-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.upsell-inner h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.upsell-inner p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.upsell-btn {
  display: inline-block;
  padding: 12px 20px;
  background: linear-gradient(135deg, #22d3ee, #6366f1);
  color: #000;
  font-weight: 700;
  border-radius: 10px;
  font-size: 0.9rem;
}

.upsell-btn:hover { opacity: 0.9; }

.viral-footer {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: center;
  font-size: 0.82rem;
}

.viral-footer a { color: var(--text-dim); }

/* ── Responsive ── */
@media (max-width: 640px) {
  .wrap { padding: 20px 16px 40px; }
  header h1 { font-size: 1.6rem; }
  .grid { grid-template-columns: 1fr; }
  .items-header { display: none; }
  .item-row { grid-template-columns: 1fr 1fr 36px; }
  .item-row input:first-child { grid-column: 1 / -1; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .tabs { grid-template-columns: 1fr; }
  .tab { flex-direction: row; justify-content: flex-start; padding: 12px 16px; }
  form { padding: 20px; }
}