/* ── RESET & BASE ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --ink:     #0D0B14;
  --ink2:    #2E2A3D;
  --muted:   #6B6780;
  --border:  #E4E1F0;
  --surface: #F7F5FF;
  --white:   #FFFFFF;
  --accent:  #534AB7;
  --accent2: #7F77DD;
  --accent3: #AFA9EC;
  --teal:    #0F6E56;
  --teal2:   #1D9E75;
  --radius:  16px;
  --nav-h:   64px;
}
html { scroll-behavior: smooth; }
body {
  font-family: 'Instrument Sans', sans-serif;
  background: var(--white);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── LOGO ICON (SVG inline) ───────────────────────────────── */
.logo-icon {
  width: 32px; height: 32px; flex-shrink: 0;
}
.logo-wordmark {
  font-family: 'DM Mono', monospace;
  font-weight: 500;
  font-size: 17px;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.logo-wordmark span { color: var(--accent); }

/* ── NAV ─────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-h);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-links {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--muted);
  transition: color .15s;
  position: relative;
}
.nav-links a:hover { color: var(--ink); }
.nav-links a::after {
  content: ''; position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1.5px; background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .2s;
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta {
  background: var(--ink); color: var(--white) !important;
  padding: 8px 18px; border-radius: 40px;
  font-size: 13px !important; font-weight: 600 !important;
  transition: background .15s !important;
}
.nav-cta:hover { background: var(--accent) !important; }
.nav-cta::after { display: none !important; }
.hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: .2s; }
.mobile-menu {
  display: none; position: fixed; inset: var(--nav-h) 0 0 0;
  background: var(--white); z-index: 99;
  flex-direction: column; align-items: center; justify-content: center; gap: 32px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 22px; font-weight: 500; color: var(--ink); }

/* ── HERO ─────────────────────────────────────────────────── */
#home {
  max-width: 1100px; margin: 0 auto;
  padding: 96px 24px 80px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  padding: 6px 14px; border-radius: 40px;
  font-size: 12px; font-weight: 500; color: var(--accent);
  margin-bottom: 24px;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.hero-tag-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--teal2); animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 20px;
}
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-desc {
  font-size: 17px; color: var(--muted); line-height: 1.7;
  margin-bottom: 36px; max-width: 480px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-primary {
  background: var(--ink); color: var(--white);
  padding: 13px 26px; border-radius: 40px;
  font-size: 14px; font-weight: 600;
  transition: background .15s, transform .1s;
  display: inline-block;
}
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }
.btn-ghost {
  border: 1.5px solid var(--border); color: var(--ink2);
  padding: 12px 24px; border-radius: 40px;
  font-size: 14px; font-weight: 500;
  transition: border-color .15s, transform .1s;
  display: inline-block;
}
.btn-ghost:hover { border-color: var(--accent2); transform: translateY(-1px); }

/* Hero visual: the logo mark, large */
.hero-visual {
  display: flex; align-items: center; justify-content: center;
}
.hero-mark {
  width: 280px; height: 280px;
  background: var(--ink); border-radius: 56px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 32px 80px rgba(83,74,183,0.18), 0 8px 24px rgba(13,11,20,0.12);
  animation: float 5s ease-in-out infinite;
}
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }

/* ── SECTION BASE ─────────────────────────────────────────── */
section { padding: 80px 24px; }
.section-inner { max-width: 1100px; margin: 0 auto; }
.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 11px; font-weight: 500; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 12px;
}
.section-title {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.15; letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-desc { font-size: 16px; color: var(--muted); max-width: 520px; line-height: 1.7; }

/* ── DIVIDER ─────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ── APPS GRID ───────────────────────────────────────────── */
#apps { background: var(--surface); }
.apps-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 48px; flex-wrap: wrap; gap: 16px;
}
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* ── APP CARD ─────────────────────────────────────────────── */
.app-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex; flex-direction: column; gap: 16px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
  position: relative; overflow: hidden;
  cursor: pointer;
}
.app-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: var(--card-color, var(--accent));
  transform: scaleX(0); transform-origin: left;
  transition: transform .25s;
}
.app-card:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(83,74,183,0.1); border-color: var(--accent3); }
.app-card:hover::before { transform: scaleX(1); }
.app-icon-wrap {
  width: 64px; height: 64px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  background: var(--card-bg, var(--surface));
  flex-shrink: 0;
}
.app-icon-svg { width: 36px; height: 36px; }
.app-meta { flex: 1; }
.app-name {
  font-family: 'DM Mono', monospace;
  font-size: 15px; font-weight: 500;
  color: var(--ink); margin-bottom: 6px;
}
.app-desc { font-size: 14px; color: var(--muted); line-height: 1.6; }
.app-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.app-tag {
  font-size: 11px; font-weight: 500;
  padding: 3px 10px; border-radius: 20px;
  background: var(--surface); color: var(--muted);
  border: 1px solid var(--border);
}
.app-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--card-color, var(--accent));
  margin-top: auto; padding-top: 8px;
  border-top: 1px solid var(--border);
  transition: gap .15s;
}
.app-card:hover .app-link { gap: 10px; }
.app-badge {
  position: absolute; top: 16px; right: 16px;
  font-size: 10px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 3px 8px; border-radius: 10px;
  background: var(--teal2); color: var(--white);
}

/* ── ABOUT ───────────────────────────────────────────────── */
#about {
  background: var(--ink);
  color: var(--white);
}
#about .section-label { color: var(--accent3); }
#about .section-title { color: var(--white); }
#about .section-desc { color: rgba(255,255,255,0.55); max-width: 100%; }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start;
  margin-top: 48px;
}
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px; padding: 24px;
}
.stat-num {
  font-family: 'DM Serif Display', serif;
  font-size: 36px; color: var(--white);
  line-height: 1; margin-bottom: 6px;
}
.stat-label { font-size: 13px; color: rgba(255,255,255,0.45); }
.about-text p { color: rgba(255,255,255,0.7); font-size: 16px; line-height: 1.8; margin-bottom: 20px; }
.about-text p:last-child { margin-bottom: 0; }

/* ── BLOG PREVIEW ────────────────────────────────────────── */
#blog { background: var(--white); }
.blog-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px; margin-top: 48px;
}
.blog-card {
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .2s, box-shadow .2s;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(83,74,183,0.08); }
.blog-card-top {
  height: 180px; display: flex; align-items: center; justify-content: center;
  font-size: 48px;
  background: var(--surface);
}
.blog-card-body { padding: 24px; }
.blog-date {
  font-family: 'DM Mono', monospace; font-size: 11px;
  color: var(--muted); margin-bottom: 10px; letter-spacing: 0.05em;
}
.blog-title {
  font-family: 'DM Serif Display', serif;
  font-size: 20px; line-height: 1.25; margin-bottom: 10px;
}
.blog-excerpt { font-size: 14px; color: var(--muted); line-height: 1.65; }
.blog-read {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--accent);
  margin-top: 16px;
}

/* ── CONTACT ─────────────────────────────────────────────── */
#contact { background: var(--surface); }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  margin-top: 48px; align-items: start;
}
.contact-info p { color: var(--muted); margin-bottom: 24px; font-size: 16px; line-height: 1.7; }
.contact-item {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px; font-size: 15px;
}
.contact-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--white); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-form {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--ink2); margin-bottom: 8px;
}
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px;
  border: 1.5px solid var(--border); border-radius: 10px;
  font-family: 'Instrument Sans', sans-serif; font-size: 14px;
  color: var(--ink); background: var(--surface);
  transition: border-color .15s;
  outline: none; resize: vertical;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  border-color: var(--accent2); background: var(--white);
}
.form-group textarea { min-height: 120px; }
.form-submit {
  width: 100%; background: var(--ink); color: var(--white);
  border: none; padding: 14px; border-radius: 40px;
  font-family: 'Instrument Sans', sans-serif;
  font-size: 14px; font-weight: 600; cursor: pointer;
  transition: background .15s;
}
.form-submit:hover { background: var(--accent); }
#form-success {
  display: none; text-align: center; padding: 20px;
  color: var(--teal2); font-weight: 500; font-size: 15px;
}

/* ── FOOTER ──────────────────────────────────────────────── */
footer {
  background: var(--ink); color: rgba(255,255,255,0.45);
  padding: 48px 24px;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 24px;
}
.footer-logo { display: flex; align-items: center; gap: 10px; }
.footer-logo .logo-wordmark { color: rgba(255,255,255,0.8); }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer-links a {
  font-size: 13px; color: rgba(255,255,255,0.4);
  transition: color .15s;
}
.footer-links a:hover { color: rgba(255,255,255,0.8); }
.footer-copy { font-size: 13px; width: 100%; text-align: center; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.08); }

/* ── PRIVACY / TERMS PAGE ────────────────────────────────── */
.page-section {
  max-width: 720px; margin: 0 auto;
  padding: 80px 24px;
}
.page-section h1 {
  font-family: 'DM Serif Display', serif;
  font-size: 36px; margin-bottom: 8px;
}
.page-section .page-date { font-size: 13px; color: var(--muted); margin-bottom: 40px; }
.page-section h2 {
  font-family: 'DM Serif Display', serif; font-size: 22px;
  margin: 32px 0 12px;
}
.page-section p, .page-section li {
  font-size: 15px; color: var(--muted); line-height: 1.8; margin-bottom: 12px;
}
.page-section ul { padding-left: 20px; }
.page-section a { color: var(--accent); }

/* ── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  #home { grid-template-columns: 1fr; padding-top: 48px; }
  .hero-visual { order: -1; }
  .hero-mark { width: 180px; height: 180px; border-radius: 36px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* ── ANIMATIONS ──────────────────────────────────────────── */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity .5s ease, transform .5s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── ADSENSE SLOT ────────────────────────────────────────── */
.ad-slot {
  max-width: 1100px; margin: 0 auto;
  padding: 0 24px 40px;
  display: flex; justify-content: center;
}

/* ── SITE HERO (simplified homepage) ─────────────────────── */
.site-hero {
  background: var(--ink);
  padding: 88px 24px 80px;
  text-align: center;
}
.site-hero-inner {
  max-width: 640px;
  margin: 0 auto;
}
.site-hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(36px, 5vw, 54px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 20px;
}
.site-hero h1 em { font-style: italic; color: var(--accent2); }
.site-hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 36px;
}
.site-hero .hero-tag {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.12);
  color: var(--accent3);
  margin-bottom: 24px;
}
.site-hero .btn-primary {
  background: var(--accent);
}
.site-hero .btn-primary:hover { background: var(--accent2); }
.site-hero .btn-ghost {
  border-color: rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.7);
}
.site-hero .btn-ghost:hover {
  border-color: rgba(255,255,255,0.5);
  color: var(--white);
}

/* ── SECTION HEAD ─────────────────────────────────────────── */
.section-head { margin-bottom: 40px; }

/* ── POST GRID ────────────────────────────────────────────── */
#posts { background: var(--surface); }
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .2s, box-shadow .2s;
  color: var(--ink);
}
.post-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(83,74,183,0.1);
}
.post-card-icon {
  height: 140px;
  display: flex; align-items: center; justify-content: center;
  font-size: 40px;
  flex-shrink: 0;
}
.post-card-body {
  padding: 24px;
  display: flex; flex-direction: column; flex: 1;
}
.post-tag {
  font-family: 'DM Mono', monospace;
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.post-title {
  font-family: 'DM Serif Display', serif;
  font-size: 18px; line-height: 1.3;
  margin-bottom: 10px; color: var(--ink);
}
.post-excerpt {
  font-size: 14px; color: var(--muted);
  line-height: 1.65; flex: 1;
  margin-bottom: 16px;
}
.post-meta {
  font-family: 'DM Mono', monospace;
  font-size: 11px; color: var(--muted);
  letter-spacing: 0.04em;
  border-top: 1px solid var(--border);
  padding-top: 12px; margin-top: auto;
}

/* ── ARTICLE PAGE ─────────────────────────────────────────── */
.article-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}
.article-tag-row {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 20px;
}
.article-category {
  font-family: 'DM Mono', monospace;
  font-size: 11px; font-weight: 500;
  letter-spacing: 0.1em; text-transform: uppercase;
  padding: 4px 12px; border-radius: 20px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--accent);
}
.article-wrap h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15; letter-spacing: -0.02em;
  margin-bottom: 16px; color: var(--ink);
}
.article-meta {
  font-family: 'DM Mono', monospace;
  font-size: 12px; color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.article-body { font-size: 16px; line-height: 1.8; color: var(--ink2); }
.article-body p { margin-bottom: 20px; }
.article-body h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 24px; line-height: 1.2;
  color: var(--ink); margin: 40px 0 14px;
}
.article-body h3 {
  font-size: 16px; font-weight: 600;
  color: var(--ink); margin: 28px 0 10px;
}
.article-body ul, .article-body ol {
  padding-left: 24px; margin-bottom: 20px;
}
.article-body li { margin-bottom: 8px; }
.article-body strong { color: var(--ink); font-weight: 600; }
.article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* App CTA box — at end of each article */
.app-cta-box {
  margin-top: 48px;
  padding: 28px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex; align-items: center; gap: 20px;
  flex-wrap: wrap;
}
.app-cta-box-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0;
}
.app-cta-box-text { flex: 1; min-width: 200px; }
.app-cta-box-text strong {
  display: block; font-size: 15px;
  color: var(--ink); margin-bottom: 4px;
}
.app-cta-box-text span {
  font-size: 13px; color: var(--muted); line-height: 1.5;
}
.app-cta-box .btn-primary {
  font-size: 13px; padding: 10px 20px; flex-shrink: 0;
}

/* More posts row */
.more-posts { margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--border); }
.more-posts-label {
  font-family: 'DM Mono', monospace;
  font-size: 11px; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 20px;
}
.more-posts-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
}
.more-post-link {
  padding: 16px 20px;
  border: 1px solid var(--border); border-radius: 12px;
  display: block; transition: border-color .15s, background .15s;
}
.more-post-link:hover { border-color: var(--accent3); background: var(--surface); }
.more-post-link .post-tag { margin-bottom: 6px; }
.more-post-link h4 {
  font-family: 'DM Serif Display', serif;
  font-size: 15px; line-height: 1.3; color: var(--ink);
}

/* ── ABOUT PAGE ───────────────────────────────────────────── */
.about-wrap {
  max-width: 760px; margin: 0 auto;
  padding: 64px 24px 80px;
}
.about-wrap h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.15; letter-spacing: -0.02em;
  margin-bottom: 24px;
}
.about-wrap .lead {
  font-size: 18px; color: var(--muted);
  line-height: 1.75; margin-bottom: 40px;
  padding-bottom: 40px; border-bottom: 1px solid var(--border);
}
.about-body p {
  font-size: 16px; line-height: 1.8;
  color: var(--ink2); margin-bottom: 20px;
}
.about-apps-row {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px; margin-top: 40px;
}
.about-app-pill {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 18px; border: 1px solid var(--border);
  border-radius: 12px; transition: border-color .15s;
  font-size: 14px; font-weight: 500; color: var(--ink);
}
.about-app-pill:hover { border-color: var(--accent3); }
.about-app-pill-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
}

/* ── RESPONSIVE ADDITIONS ─────────────────────────────────── */
@media (max-width: 768px) {
  .more-posts-grid { grid-template-columns: 1fr; }
  .app-cta-box { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
  .post-grid { grid-template-columns: 1fr; }
}