/* ============================================================
   PromptKit — Unified Stylesheet
   Rename "PromptKit" anywhere you see it once you settle
   on a final brand name. Every color lives in :root below so a
   full rebrand is a find-and-replace of hex values, not markup.
   ============================================================ */

:root {
  --color-bg-primary: #0a1128;
  --color-bg-secondary: #0f1a3d;
  --color-bg-card: #111d42;
  --color-border: rgba(255, 255, 255, 0.08);

  --color-brand-blue: #2f7cff;
  --color-brand-blue-dark: #1a4fd6;
  --color-brand-blue-light: #6fa8ff;

  --color-accent-yellow: #ffd700;
  --color-accent-yellow-hover: #ffe14d;
  --color-accent-yellow-dark: #e6c200;

  --color-text-primary: #f5f7ff;
  --color-text-secondary: #aab4d4;
  --color-text-muted: #7885ad;
  --color-text-on-yellow: #0a1128;

  --color-success: #2ecc71;
  --color-error: #ff6161;

  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --max-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-yellow-glow: 0 0 0 3px rgba(255, 215, 0, 0.25);
  --transition-fast: 0.18s ease;
  --transition-base: 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-base);
  background: radial-gradient(circle at top, var(--color-bg-secondary) 0%, var(--color-bg-primary) 55%);
  color: var(--color-text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-brand-blue-light); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent-yellow); }
h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 var(--space-sm); font-weight: 800; letter-spacing: -0.02em; }
p { margin: 0 0 var(--space-sm); color: var(--color-text-secondary); }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--space-md); }
section { padding: var(--space-2xl) 0; }
.eyebrow {
  display: inline-block; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.14em;
  font-weight: 700; color: var(--color-brand-blue-light); background: rgba(47, 124, 255, 0.12);
  border: 1px solid rgba(47, 124, 255, 0.35); padding: 0.35rem 0.85rem; border-radius: 999px; margin-bottom: var(--space-sm);
}
.section-heading { text-align: center; max-width: 640px; margin: 0 auto var(--space-lg); }
.section-heading h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; font-family: inherit;
  font-weight: 700; font-size: 1rem; padding: 0.9rem 1.75rem; border-radius: var(--radius-sm); border: none;
  cursor: pointer; transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-cta { background: var(--color-accent-yellow); color: var(--color-text-on-yellow); box-shadow: 0 8px 24px rgba(255, 215, 0, 0.25); }
.btn-cta:hover { background: var(--color-accent-yellow-hover); box-shadow: 0 10px 30px rgba(255, 215, 0, 0.4); color: var(--color-text-on-yellow); }
.btn-secondary { background: transparent; color: var(--color-text-primary); border: 1.5px solid var(--color-border); }
.btn-secondary:hover { border-color: var(--color-brand-blue-light); color: var(--color-brand-blue-light); }
.btn-block { width: 100%; }
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.9rem; }
.site-header { position: sticky; top: 0; z-index: 100; backdrop-filter: blur(14px); background: rgba(10, 17, 40, 0.78); border-bottom: 1px solid var(--color-border); }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 1rem var(--space-md); max-width: var(--max-width); margin: 0 auto; }
.nav-logo { display: flex; align-items: center; gap: 0.6rem; font-weight: 800; font-size: 1.15rem; color: var(--color-text-primary); }
.nav-logo .logo-mark { width: 34px; height: 34px; border-radius: 9px; background: linear-gradient(135deg, var(--color-brand-blue), var(--color-accent-yellow)); display: flex; align-items: center; justify-content: center; font-weight: 900; color: var(--color-bg-primary); font-size: 1rem; }
.nav-logo:hover { color: var(--color-text-primary); }
.nav-links { display: flex; align-items: center; gap: var(--space-lg); list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--color-text-secondary); font-weight: 600; font-size: 0.95rem; }
.nav-links a.active, .nav-links a:hover { color: var(--color-text-primary); }
.nav-actions { display: flex; align-items: center; gap: var(--space-sm); }
.nav-toggle { display: none; background: none; border: none; color: var(--color-text-primary); font-size: 1.5rem; cursor: pointer; }
.hero { padding-top: var(--space-2xl); padding-bottom: var(--space-xl); position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -20%; right: -10%; width: 560px; height: 560px; background: radial-gradient(circle, rgba(47, 124, 255, 0.35), transparent 70%); filter: blur(10px); pointer-events: none; }
.hero::after { content: ''; position: absolute; bottom: -25%; left: -10%; width: 480px; height: 480px; background: radial-gradient(circle, rgba(255, 215, 0, 0.16), transparent 70%); filter: blur(10px); pointer-events: none; }
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--space-xl); align-items: center; }
.hero-content h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); margin-bottom: var(--space-md); }
.hero-content h1 span { background: linear-gradient(90deg, var(--color-brand-blue-light), var(--color-accent-yellow)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-content p { font-size: 1.1rem; max-width: 520px; }
.hero-cta-row { display: flex; align-items: center; gap: var(--space-md); margin-top: var(--space-lg); flex-wrap: wrap; }
.hero-microcopy { font-size: 0.85rem; color: var(--color-text-muted); margin-top: var(--space-sm); }
.hero-visual { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-lg); box-shadow: var(--shadow-card); }
.hero-visual .mock-window { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-border); }
.mock-window-bar { display: flex; gap: 6px; padding: 0.7rem 0.9rem; background: rgba(255, 255, 255, 0.04); }
.mock-window-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--color-text-muted); opacity: 0.5; }
.mock-window-body { padding: var(--space-md); font-family: var(--font-mono); font-size: 0.85rem; color: var(--color-brand-blue-light); }
.mock-window-body .line { margin-bottom: 0.6rem; opacity: 0.9; }
.mock-window-body .line.yellow { color: var(--color-accent-yellow); }
.stat-row { display: flex; gap: var(--space-lg); margin-top: var(--space-md); }
.stat { flex: 1; }
.stat strong { display: block; font-size: 1.5rem; color: var(--color-accent-yellow); }
.stat span { font-size: 0.8rem; color: var(--color-text-muted); }
.newsletter-panel { background: linear-gradient(135deg, var(--color-bg-card), var(--color-bg-secondary)); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-xl) var(--space-lg); display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-lg); align-items: center; }
.newsletter-panel h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
.form-row { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.form-input { flex: 1; min-width: 200px; padding: 0.9rem 1.1rem; border-radius: var(--radius-sm); border: 1.5px solid var(--color-border); background: rgba(255, 255, 255, 0.04); color: var(--color-text-primary); font-family: inherit; font-size: 0.95rem; transition: border-color var(--transition-fast), box-shadow var(--transition-fast); }
.form-input::placeholder { color: var(--color-text-muted); }
.form-input:focus { outline: none; border-color: var(--color-brand-blue-light); box-shadow: 0 0 0 3px rgba(47, 124, 255, 0.25); }
.form-note { font-size: 0.8rem; color: var(--color-text-muted); margin-top: var(--space-xs); }
.form-note a { color: var(--color-text-muted); text-decoration: underline; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-md); }
.card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; display: flex; flex-direction: column; transition: transform var(--transition-base), border-color var(--transition-base); }
.card:hover { transform: translateY(-4px); border-color: rgba(47, 124, 255, 0.4); }
.card-cover { aspect-ratio: 16 / 10; background: linear-gradient(135deg, var(--color-brand-blue-dark), var(--color-bg-secondary) 60%); position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.card-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(255, 215, 0, 0.18), transparent 55%); }
.card-cover .cover-icon { font-size: 2.6rem; z-index: 1; filter: drop-shadow(0 4px 10px rgba(0,0,0,0.4)); }
.card-cover .cover-tag { position: absolute; top: 0.75rem; left: 0.75rem; background: var(--color-accent-yellow); color: var(--color-text-on-yellow); font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.05em; padding: 0.3rem 0.6rem; border-radius: 999px; z-index: 1; }
.card-body { padding: var(--space-md); display: flex; flex-direction: column; gap: 0.6rem; flex: 1; }
.card-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.tag { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-brand-blue-light); background: rgba(47, 124, 255, 0.12); border: 1px solid rgba(47, 124, 255, 0.3); padding: 0.25rem 0.6rem; border-radius: 999px; }
.card-body h3 { font-size: 1.15rem; margin-bottom: 0; }
.card-body p { font-size: 0.92rem; margin-bottom: 0; }
.card-footer { padding: var(--space-md); padding-top: 0; margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); }
.card-meta { font-size: 0.8rem; color: var(--color-text-muted); }
.search-bar { display: flex; gap: var(--space-sm); margin-bottom: var(--space-lg); flex-wrap: wrap; }
.search-bar .form-input { flex: 2; min-width: 240px; }
.filter-select { flex: 1; min-width: 160px; padding: 0.9rem 1.1rem; border-radius: var(--radius-sm); border: 1.5px solid var(--color-border); background: rgba(255, 255, 255, 0.04); color: var(--color-text-primary); font-family: inherit; font-size: 0.95rem; }
.modal-overlay { position: fixed; inset: 0; background: rgba(5, 9, 22, 0.72); backdrop-filter: blur(4px); display: none; align-items: center; justify-content: center; z-index: 1000; padding: var(--space-md); }
.modal-overlay.is-open { display: flex; animation: fadeIn var(--transition-base); }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-box { background: var(--color-bg-card); border: 1px solid rgba(255, 215, 0, 0.25); border-radius: var(--radius-lg); max-width: 440px; width: 100%; padding: var(--space-lg); position: relative; box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255,255,255,0.02); animation: popIn var(--transition-base); }
@keyframes popIn { from { opacity: 0; transform: translateY(12px) scale(0.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-close { position: absolute; top: 1rem; right: 1rem; background: rgba(255, 255, 255, 0.06); border: none; color: var(--color-text-secondary); width: 32px; height: 32px; border-radius: 50%; cursor: pointer; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; transition: background var(--transition-fast), color var(--transition-fast); }
.modal-close:hover { background: rgba(255, 255, 255, 0.14); color: var(--color-text-primary); }
.modal-icon { width: 52px; height: 52px; border-radius: 14px; background: linear-gradient(135deg, var(--color-brand-blue), var(--color-accent-yellow)); display: flex; align-items: center; justify-content: center; font-size: 1.4rem; margin-bottom: var(--space-sm); }
.modal-box h3 { font-size: 1.4rem; }
.modal-box .modal-guide-name { color: var(--color-accent-yellow); }
.modal-form { margin-top: var(--space-md); display: flex; flex-direction: column; gap: 0.8rem; }
.notification { position: fixed; bottom: var(--space-lg); right: var(--space-lg); left: auto; max-width: 380px; background: var(--color-bg-card); border: 1px solid var(--color-accent-yellow); border-radius: var(--radius-md); padding: var(--space-md); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5); display: flex; gap: 0.8rem; align-items: flex-start; z-index: 1200; transform: translateY(20px); opacity: 0; pointer-events: none; transition: transform var(--transition-base), opacity var(--transition-base); }
.notification.is-visible { transform: translateY(0); opacity: 1; pointer-events: auto; }
.notification.is-error { border-color: var(--color-error); }
.notification-icon { width: 34px; height: 34px; min-width: 34px; border-radius: 50%; background: var(--color-accent-yellow); color: var(--color-text-on-yellow); display: flex; align-items: center; justify-content: center; font-weight: 900; }
.notification.is-error .notification-icon { background: var(--color-error); color: #fff; }
.notification-body strong { display: block; margin-bottom: 0.15rem; font-size: 0.95rem; }
.notification-body p { margin: 0; font-size: 0.85rem; color: var(--color-text-secondary); }
.notification-inline-form-slot { margin-top: var(--space-sm); }
.inline-success { display: none; align-items: center; gap: 0.6rem; background: rgba(255, 215, 0, 0.1); border: 1px solid rgba(255, 215, 0, 0.4); color: var(--color-accent-yellow); padding: 0.8rem 1rem; border-radius: var(--radius-sm); font-size: 0.88rem; font-weight: 600; margin-top: 0.6rem; }
.inline-success.is-visible { display: flex; }
.post-layout { display: grid; grid-template-columns: 1fr 320px; gap: var(--space-xl); align-items: start; }
.post-header .eyebrow { margin-bottom: var(--space-sm); }
.post-header h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
.post-meta { display: flex; align-items: center; gap: var(--space-sm); color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: var(--space-lg); }
.post-meta .avatar { width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--color-brand-blue), var(--color-accent-yellow)); }
.post-cover { aspect-ratio: 21 / 9; border-radius: var(--radius-lg); background: linear-gradient(135deg, var(--color-brand-blue-dark), var(--color-bg-secondary) 70%); margin-bottom: var(--space-lg); position: relative; overflow: hidden; }
.post-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(255, 215, 0, 0.16), transparent 60%); }
.post-body h2 { font-size: 1.5rem; margin-top: var(--space-lg); }
.post-body h3 { font-size: 1.2rem; margin-top: var(--space-md); }
.post-body p, .post-body li { color: var(--color-text-secondary); font-size: 1.02rem; }
.post-body ul, .post-body ol { padding-left: 1.3rem; }
.post-body code { font-family: var(--font-mono); background: rgba(47, 124, 255, 0.12); color: var(--color-brand-blue-light); padding: 0.15rem 0.4rem; border-radius: 4px; font-size: 0.9em; }
.post-body pre { background: #050912; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-md); overflow-x: auto; }
.post-body pre code { background: none; padding: 0; color: var(--color-text-primary); }
.post-body blockquote { border-left: 3px solid var(--color-accent-yellow); margin: var(--space-md) 0; padding: 0.6rem 0 0.6rem var(--space-md); color: var(--color-text-primary); font-style: italic; }
.callout { background: rgba(47, 124, 255, 0.08); border: 1px solid rgba(47, 124, 255, 0.3); border-radius: var(--radius-md); padding: var(--space-md); margin: var(--space-lg) 0; }
.callout strong { color: var(--color-brand-blue-light); }
.post-sidebar { position: sticky; top: 96px; display: flex; flex-direction: column; gap: var(--space-md); }
.sidebar-card { background: var(--color-bg-card); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-md); }
.sidebar-card h4 { font-size: 1rem; }
.sidebar-card p { font-size: 0.88rem; }
.share-row { display: flex; gap: 0.6rem; }
.share-btn { flex: 1; padding: 0.6rem; border-radius: var(--radius-sm); border: 1px solid var(--color-border); background: rgba(255, 255, 255, 0.03); color: var(--color-text-secondary); text-align: center; font-size: 0.85rem; cursor: pointer; }
.share-btn:hover { border-color: var(--color-brand-blue-light); color: var(--color-brand-blue-light); }
.site-footer { border-top: 1px solid var(--color-border); padding: var(--space-xl) 0 var(--space-lg); margin-top: var(--space-xl); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-lg); margin-bottom: var(--space-lg); }
.footer-brand p { font-size: 0.9rem; max-width: 320px; }
.footer-col h5 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-muted); margin-bottom: var(--space-sm); }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col a { color: var(--color-text-secondary); font-size: 0.9rem; }
.footer-disclosure { border-top: 1px solid var(--color-border); padding-top: var(--space-md); font-size: 0.78rem; color: var(--color-text-muted); line-height: 1.7; }
.footer-disclosure p { color: var(--color-text-muted); font-size: 0.78rem; margin-bottom: 0.6rem; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: var(--space-md); font-size: 0.8rem; color: var(--color-text-muted); flex-wrap: wrap; gap: 0.5rem; }
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mb-0 { margin-bottom: 0; }
.hidden { display: none !important; }
.affiliate-disclosure-inline { font-size: 0.78rem; color: var(--color-text-muted); border: 1px dashed var(--color-border); border-radius: var(--radius-sm); padding: 0.6rem 0.8rem; margin-top: 0.6rem; }
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .newsletter-panel { grid-template-columns: 1fr; }
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links { position: fixed; top: 68px; left: 0; right: 0; background: var(--color-bg-secondary); flex-direction: column; align-items: flex-start; padding: var(--space-md); border-bottom: 1px solid var(--color-border); display: none; gap: var(--space-md); }
  .nav-links.is-open { display: flex; }
  .nav-toggle { display: block; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  section { padding: var(--space-xl) 0; }
  .modal-box { padding: var(--space-md); }
}