:root {
  --bg: #07111f;
  --bg-2: #0b1728;
  --panel: rgba(255, 255, 255, 0.08);
  --panel-strong: rgba(255, 255, 255, 0.12);
  --border: rgba(255, 255, 255, 0.14);
  --text: #f8fafc;
  --muted: #b6c2d1;
  --primary: #7c3aed;
  --primary-2: #a855f7;
  --accent: #22c55e;
  --danger: #ef4444;
  --warning: #f59e0b;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(124, 58, 237, 0.25), transparent 30%),
    radial-gradient(circle at top right, rgba(34, 197, 94, 0.12), transparent 22%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
}

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(7, 17, 31, 0.7);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.2px;
}

.brand-badge {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.35);
  font-size: 20px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-weight: 600;
  transition: 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: white;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn,
button {
  border: 0;
  cursor: pointer;
  font-weight: 700;
  border-radius: 14px;
  transition: 0.2s ease;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
}

.btn-primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.btn-secondary {
  color: white;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
}

.btn-danger {
  color: white;
  background: linear-gradient(135deg, #dc2626, #ef4444);
}

.hero {
  padding: 72px 0 30px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.hero-card,
.glass-card,
.feature-card,
.tool-card,
.pricing-card,
.form-card,
.dashboard-card,
.output-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 42px;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(124, 58, 237, 0.18);
  color: #e9d5ff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 18px;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(36px, 5vw, 66px);
  line-height: 1.02;
  letter-spacing: -1px;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 26px;
  flex-wrap: wrap;
}

.hero-stats {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.stat {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.stat strong {
  display: block;
  font-size: 24px;
  margin-bottom: 6px;
}

.hero-side {
  padding: 24px;
}

.hero-preview {
  display: grid;
  gap: 14px;
}

.preview-bubble {
  padding: 18px 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}

.preview-bubble small {
  display: block;
  color: #c4b5fd;
  margin-bottom: 8px;
  font-weight: 700;
}

.section {
  padding: 34px 0;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: clamp(28px, 3vw, 42px);
}

.section-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.grid-4,
.grid-3,
.grid-2 {
  display: grid;
  gap: 18px;
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.tool-card,
.feature-card,
.pricing-card {
  padding: 24px;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(168,85,247,0.18));
  border: 1px solid rgba(255,255,255,0.12);
  font-size: 24px;
  margin-bottom: 16px;
}

.tool-card h3,
.feature-card h3,
.pricing-card h3 {
  margin: 0 0 10px;
  font-size: 24px;
}

.tool-card p,
.feature-card p,
.pricing-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.card-actions {
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.list li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
  margin-bottom: 10px;
  line-height: 1.6;
}

.list li::before {
  content: "•";
  position: absolute;
  left: 0;
  top: 0;
  color: #c4b5fd;
  font-size: 18px;
}

.price {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 18px 0 8px;
}

.price strong {
  font-size: 42px;
}

.price span {
  color: var(--muted);
  font-weight: 600;
}

.pricing-card.highlight {
  border-color: rgba(168,85,247,0.4);
  background: linear-gradient(180deg, rgba(124,58,237,0.14), rgba(255,255,255,0.06));
}

.footer {
  padding: 34px 0 50px;
  color: var(--muted);
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.page-hero {
  padding: 56px 0 18px;
}

.page-hero-inner {
  padding: 34px;
}

.page-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 52px);
}

.page-hero p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  max-width: 820px;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 22px;
  padding-bottom: 36px;
}

.panel {
  padding: 24px;
}

.panel h2,
.panel h3 {
  margin-top: 0;
}

.label {
  display: block;
  margin-bottom: 10px;
  color: #e2e8f0;
  font-weight: 700;
}

.input,
.textarea,
.select {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: white;
  border-radius: 16px;
  padding: 15px 16px;
  outline: none;
  font: inherit;
}

.input::placeholder,
.textarea::placeholder {
  color: #93a4ba;
}

.textarea {
  min-height: 190px;
  resize: vertical;
}

.form-row {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, 1fr);
}

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.tip-box,
.status-box {
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--muted);
  line-height: 1.7;
}

.output-box {
  min-height: 300px;
  white-space: pre-wrap;
  line-height: 1.8;
  color: #f8fafc;
}

.output-placeholder {
  color: #93a4ba;
}

.badge-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 14px 0 18px;
}

.badge {
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  font-size: 13px;
  color: #dbeafe;
  font-weight: 700;
}

.auth-wrap {
  min-height: calc(100vh - 78px);
  display: grid;
  place-items: center;
  padding: 36px 0 46px;
}

.form-card {
  width: min(100%, 520px);
  padding: 30px;
}

.form-card h1 {
  margin: 0 0 10px;
  font-size: 34px;
}

.form-card p {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.7;
}

.form-stack {
  display: grid;
  gap: 14px;
}

.form-note {
  margin-top: 16px;
  color: var(--muted);
  line-height: 1.7;
}

.form-error,
.form-success {
  margin-top: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  font-weight: 700;
}

.form-error {
  background: rgba(239,68,68,0.14);
  color: #fecaca;
  border: 1px solid rgba(239,68,68,0.3);
}

.form-success {
  background: rgba(34,197,94,0.12);
  color: #bbf7d0;
  border: 1px solid rgba(34,197,94,0.3);
}

.hidden {
  display: none !important;
}

.dashboard-hero {
  padding: 48px 0 22px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 22px;
  padding-bottom: 40px;
}

.sidebar {
  padding: 22px;
  position: sticky;
  top: 100px;
  height: fit-content;
}

.user-chip {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 16px;
}

.user-chip strong {
  display: block;
  font-size: 18px;
  margin-bottom: 6px;
}

.side-menu {
  display: grid;
  gap: 10px;
}

.side-link {
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.05);
  color: #dbe7f5;
  border: 1px solid transparent;
  font-weight: 700;
}

.side-link:hover,
.side-link.active {
  background: rgba(124,58,237,0.18);
  border-color: rgba(168,85,247,0.28);
}

.dashboard-main {
  display: grid;
  gap: 18px;
}

.stats-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, 1fr);
}

.dashboard-card {
  padding: 22px;
}

.dashboard-card h3 {
  margin-top: 0;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 14px;
}

.credit-pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(34,197,94,0.14);
  color: #bbf7d0;
  font-weight: 800;
  border: 1px solid rgba(34,197,94,0.25);
}

.history-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.history-item {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.history-item strong {
  display: block;
  margin-bottom: 6px;
}

.notice {
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(245,158,11,0.12);
  color: #fde68a;
  border: 1px solid rgba(245,158,11,0.28);
  line-height: 1.7;
}

.center {
  text-align: center;
}

.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-24 { margin-top: 24px; }

@media (max-width: 1100px) {
  .hero-grid,
  .tool-layout,
  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 720px) {
  .nav {
    min-height: auto;
    padding: 14px 0;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links,
  .nav-actions {
    width: 100%;
  }

  .hero-card,
  .hero-side,
  .panel,
  .pricing-card,
  .feature-card,
  .tool-card,
  .dashboard-card,
  .form-card {
    padding: 20px;
  }

  .hero-stats,
  .grid-4,
  .grid-3,
  .grid-2,
  .form-row {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    letter-spacing: -0.5px;
  }

  .section-head {
    flex-direction: column;
    align-items: start;
  }
}