:root {
  --bg: #071224;
  --bg-2: #0b1f3d;
  --card: rgba(13, 27, 54, 0.76);
  --line: rgba(147, 197, 253, 0.18);
  --text: #e5eefc;
  --muted: #a9b8d1;
  --primary: #7dd3fc;
  --primary-2: #60a5fa;
  --accent: #78ffd6;
  --shadow: 0 20px 60px rgba(3, 10, 24, 0.45);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(67, 97, 238, 0.18), transparent 30%),
    radial-gradient(circle at top right, rgba(125, 211, 252, 0.14), transparent 24%),
    linear-gradient(180deg, #071224 0%, #08172d 35%, #09152a 100%);
}

a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(7, 18, 36, 0.82);
  border-bottom: 1px solid rgba(125, 211, 252, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0;
}

.logo {
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: -0.04em;
}
.logo span { color: var(--primary); }
nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-weight: 600;
}
nav a { color: #d8e3f8; }
.nav-btn {
  padding: 14px 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), #9bf3d7);
  color: #08203c;
}

.hero { padding: 88px 0 56px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 42px;
  align-items: center;
}
.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.92rem;
  font-weight: 700;
  margin: 0 0 18px;
}
.hero h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.94;
  letter-spacing: -0.06em;
  max-width: 720px;
}
.hero-text {
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 1.3rem;
  line-height: 1.7;
  max-width: 820px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.hero-points {
  list-style: none;
  display: flex;
  gap: 16px;
  margin: 28px 0 0;
  padding: 0;
  flex-wrap: wrap;
}
.hero-points li {
  padding: 12px 18px;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.08);
  border: 1px solid rgba(125, 211, 252, 0.14);
  color: #d6e5ff;
}

.glass-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card { padding: 22px; }
.window-bar { display: flex; gap: 10px; margin-bottom: 22px; }
.window-bar span {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
}
.mini-label {
  margin: 0 0 12px;
  color: #b6c7e6;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
}
.hero-card h3, .output-top h3 { margin: 0 0 18px; font-size: 1.95rem; letter-spacing: -0.04em; }
.preview-box {
  border-radius: 20px;
  background: rgba(7, 18, 36, 0.52);
  border: 1px solid rgba(147, 197, 253, 0.1);
  padding: 26px;
  line-height: 1.6;
  color: #e4edff;
  font-size: 1.08rem;
}

.section { padding: 34px 0 34px; }
.alt { background: rgba(9, 18, 35, 0.48); }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.05em;
}
.section-head p { margin: 0; color: var(--muted); font-size: 1.1rem; line-height: 1.7; }

.tool-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.tool-card { padding: 24px; }
label {
  display: block;
  font-weight: 600;
  color: #dbe7fb;
  margin-bottom: 16px;
}
input, select, textarea {
  width: 100%;
  margin-top: 10px;
  border-radius: 18px;
  border: 1px solid rgba(147, 197, 253, 0.16);
  background: rgba(6, 14, 28, 0.72);
  color: #f2f7ff;
  font: inherit;
  padding: 16px 18px;
  outline: none;
}
input::placeholder, textarea::placeholder { color: #8fa3c5; }
textarea { min-height: 128px; resize: vertical; }
#generatedPrompt, #improvedPrompt { min-height: 360px; }
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  padding: 15px 24px;
  font: inherit;
  font-weight: 700;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #9bf3d7);
  color: #08203c;
}
.btn-secondary {
  background: transparent;
  color: #dbe7fb;
  border: 1px solid rgba(147, 197, 253, 0.2);
}
.full-width { width: 100%; }

.output-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.copy-btn {
  border: 1px solid rgba(147, 197, 253, 0.2);
  background: rgba(125, 211, 252, 0.08);
  color: #dbe7fb;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.helper-text, .form-note {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.filter-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.filter-btn {
  border: 1px solid rgba(147, 197, 253, 0.18);
  background: rgba(125, 211, 252, 0.06);
  color: #dbe7fb;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  cursor: pointer;
}
.filter-btn.active {
  background: linear-gradient(135deg, var(--primary), #9bf3d7);
  color: #08203c;
  border-color: transparent;
}
.library-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.library-card {
  padding: 22px;
  border-radius: 24px;
  background: rgba(12, 25, 49, 0.74);
  border: 1px solid rgba(147, 197, 253, 0.12);
  box-shadow: var(--shadow);
}
.library-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.library-tag {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(125, 211, 252, 0.08);
  color: #cfe6ff;
  text-transform: capitalize;
  font-size: 0.92rem;
}
.library-card h3 { margin: 0 0 10px; font-size: 1.35rem; letter-spacing: -0.03em; }
.library-card p { margin: 0 0 14px; color: var(--muted); line-height: 1.6; }
.prompt-snippet {
  color: #dce8fd;
  line-height: 1.7;
  border-top: 1px solid rgba(147, 197, 253, 0.1);
  padding-top: 14px;
}

.capture-card {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 24px;
  padding: 28px;
}
.capture-copy h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.05em;
}
.capture-copy p { color: var(--muted); line-height: 1.8; font-size: 1.08rem; }
.capture-points {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}
.capture-points li::before {
  content: '•';
  color: var(--accent);
  display: inline-block;
  width: 16px;
}
.capture-form {
  padding: 22px;
  border-radius: 24px;
  background: rgba(6, 14, 28, 0.64);
  border: 1px solid rgba(147, 197, 253, 0.12);
}
.hidden-field { display: none; }

.site-footer {
  padding: 34px 0 40px;
  border-top: 1px solid rgba(147, 197, 253, 0.08);
}
.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  flex-wrap: wrap;
}

@media (max-width: 980px) {
  nav { display: none; }
  .hero-grid, .tool-grid, .capture-card, .library-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 26px, 1180px); }
  .logo { font-size: 1.45rem; }
  .hero-text { font-size: 1.05rem; }
  .tool-card, .capture-card { padding: 18px; }
  .two-col { grid-template-columns: 1fr; }
  .hero-points li { width: 100%; }
  .output-top { flex-direction: column; align-items: stretch; }
  .copy-btn { width: 100%; }
}