:root {
  --bg: #0f0f0f;
  --card: #171717;
  --card-2: #1d1d1d;
  --text: #ffffff;
  --muted: #b4b4b4;
  --accent: #5d5fef;
  --accent-2: #8a5bff;
  --border: #2a2a2a;
  --shadow: 0 14px 35px rgba(0, 0, 0, 0.45);
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(circle at top right, #1e1235 0%, var(--bg) 35%);
  color: var(--text);
  min-height: 100vh;
}

.topbar,
.hero,
.app-grid,
.footer {
  width: min(1180px, 92vw);
  margin-inline: auto;
}

.topbar {
  margin-top: 18px;
  padding: 14px 20px;
  background: rgba(23, 23, 23, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 9px;
}

.main-link,
.footer a {
  color: #bfc1ff;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.25s ease;
}

.main-link:hover,
.footer a:hover {
  color: #ffffff;
}

.hero {
  margin-top: 24px;
  margin-bottom: 16px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
}

.hero p {
  margin: 8px 0 0;
  color: var(--muted);
}

.app-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(360px, 1.1fr);
  gap: 20px;
  margin-top: 20px;
  margin-bottom: 26px;
}

.panel {
  background: rgba(23, 23, 23, 0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card-glow {
  box-shadow: var(--shadow);
}

.form-panel {
  max-height: 76vh;
  overflow: auto;
}

h2,
h3,
h4 {
  margin: 0 0 14px;
}

.field-group {
  margin-bottom: 14px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

label {
  display: block;
  margin-bottom: 6px;
  color: #e6e6e6;
  font-size: 0.9rem;
}

input,
textarea,
select,
button {
  width: 100%;
  border: 1px solid #333;
  background: var(--card-2);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(93, 95, 239, 0.25);
}

.package-form {
  border: 1px solid #2f2f2f;
  background: linear-gradient(180deg, #1a1a1a, #151515);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 16px;
}

.package-form h4 {
  color: #dbdcff;
}

.hint {
  margin-top: -6px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.download-btn {
  width: auto;
  padding: 10px 16px;
  border: 1px solid transparent;
  background: linear-gradient(130deg, var(--accent), var(--accent-2));
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(103, 75, 255, 0.35);
}

.download-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.07);
}

.offer-preview {
  border: 1px solid #313131;
  border-radius: 14px;
  padding: 18px;
  background: #121212;
  position: relative;
  overflow: hidden;
}

.preview-meta h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.preview-meta p {
  margin: 3px 0;
  color: #e6e6e6;
}

.project-line {
  margin-top: 8px;
}

.preview-packages {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.preview-card {
  background: #191919;
  border: 1px solid #343434;
  border-radius: 12px;
  padding: 14px;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.preview-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.25);
}

.preview-card.recommended {
  border-color: #7b78ff;
  box-shadow: 0 12px 30px rgba(123, 120, 255, 0.22);
  background: linear-gradient(180deg, rgba(93, 95, 239, 0.24), rgba(24, 24, 24, 0.95));
}

.badge {
  position: absolute;
  top: -10px;
  right: 10px;
  background: linear-gradient(120deg, #5d5fef, #8a5bff);
  color: #fff;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}

.preview-card h4 {
  margin-bottom: 6px;
}

.preview-card .pkg-desc {
  color: var(--muted);
  font-size: 0.88rem;
  min-height: 36px;
}

.preview-card .pkg-price {
  margin: 10px 0;
  font-weight: 800;
  font-size: 1.35rem;
  color: #d9daff;
}

.preview-card ul {
  margin: 0;
  padding-left: 18px;
  color: #e4e4e4;
  font-size: 0.9rem;
}

.preview-card li + li {
  margin-top: 4px;
}

.watermark {
  margin-top: 14px;
  text-align: right;
  color: #a9a9a9;
  font-size: 0.82rem;
  opacity: 0.85;
}

.footer {
  margin-bottom: 22px;
  color: var(--muted);
  text-align: center;
  font-size: 0.92rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(10px);
  animation: fadeIn 0.6s ease forwards;
}

.delay-1 {
  animation-delay: 0.08s;
}

.delay-2 {
  animation-delay: 0.15s;
}

.delay-3 {
  animation-delay: 0.2s;
}

@keyframes fadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1000px) {
  .app-grid {
    grid-template-columns: 1fr;
  }

  .form-panel {
    max-height: none;
  }
}

@media (max-width: 760px) {
  .field-row,
  .preview-packages {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .preview-head {
    flex-direction: column;
    align-items: stretch;
  }
}