:root {
  --primary: #e1306c;
  --primary-dark: #c1285a;
  --bg: #fafafa;
  --text: #222;
  --border: #e5e5e5;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; }
.container { max-width: 1000px; margin: 0 auto; padding: 0 16px; }
a { color: var(--primary); text-decoration: none; }

/* Header */
.site-header { background: #fff; border-bottom: 1px solid var(--border); padding: 14px 0; }
.site-header .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.logo { font-weight: 700; font-size: 20px; color: var(--primary); }
.main-nav a { margin-left: 16px; font-size: 14px; font-weight: 500; }

/* Hero */
.hero { text-align: center; padding: 50px 16px; }
.hero h1 { font-size: 32px; margin-bottom: 10px; }
.hero p { color: #666; margin-bottom: 24px; }

/* Download form */
.download-form { display: flex; max-width: 600px; margin: 0 auto; gap: 8px; }
.download-form input { flex: 1; padding: 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; }
.download-form button { padding: 14px 28px; background: var(--primary); color: #fff; border: none; border-radius: 8px; font-weight: 600; cursor: pointer; }
.download-form button:hover { background: var(--primary-dark); }

/* Tools grid */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin: 40px 0; }
.tool-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 24px; text-align: center; font-weight: 600; color: var(--text); }
.tool-card:hover { border-color: var(--primary); color: var(--primary); }

/* Tool page */
.tool-page { padding: 30px 0; }
.tool-page h1 { font-size: 28px; margin-bottom: 8px; }
.subtitle { color: #666; margin-bottom: 24px; }
.result-box { margin-top: 16px; }
.btn-download { display: inline-block; background: var(--primary); color: #fff; padding: 12px 24px; border-radius: 8px; font-weight: 600; }
.error { color: #d32f2f; }
.tool-content { margin-top: 40px; }
.tool-content h2 { margin: 24px 0 12px; font-size: 20px; }
.tool-content h3 { margin: 16px 0 6px; font-size: 16px; }
.tool-content ol, .tool-content ul { padding-left: 20px; margin-bottom: 12px; }

/* Blog */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-top: 20px; }
.blog-card { background: #fff; border: 1px solid var(--border); border-radius: 10px; padding: 18px; display: block; }
.blog-card h2, .blog-card h3 { color: var(--text); font-size: 18px; margin-bottom: 6px; }
.blog-card:hover h2, .blog-card:hover h3 { color: var(--primary); }
.blog-single { padding: 30px 0; max-width: 720px; margin: 0 auto; }
.blog-single .meta { color: #888; font-size: 14px; margin: 8px 0 20px; }

/* Ad slots */
.ad-slot { text-align: center; margin: 20px auto; max-width: 728px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 50px; padding: 24px 0; text-align: center; font-size: 14px; color: #777; }
.footer-links a { margin: 0 8px; }

/* Static pages */
.static-page { padding: 30px 0; max-width: 720px; margin: 0 auto; }
.static-page h1 { margin-bottom: 16px; }
.static-page h2 { margin: 20px 0 8px; }

/* Admin */
.admin-body { background: #f4f4f6; }
.admin-login-box { max-width: 360px; margin: 100px auto; background: #fff; padding: 30px; border-radius: 10px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.admin-login-box label { display: block; margin-top: 12px; font-size: 14px; }
.admin-login-box input { width: 100%; padding: 10px; margin-top: 4px; border: 1px solid var(--border); border-radius: 6px; }
.admin-login-box button { width: 100%; margin-top: 18px; padding: 12px; background: var(--primary); color: #fff; border: none; border-radius: 6px; font-weight: 600; cursor: pointer; }

.admin-wrap { display: flex; min-height: 100vh; }
.admin-sidebar { width: 220px; background: #1a1a2e; color: #fff; padding: 20px; }
.admin-sidebar h3 { margin-bottom: 20px; }
.admin-sidebar nav a { display: block; color: #ccc; padding: 10px 0; border-bottom: 1px solid #2a2a40; }
.admin-sidebar nav a:hover { color: #fff; }
.admin-content { flex: 1; padding: 30px; }

.stat-cards { display: flex; gap: 16px; margin: 20px 0; }
.stat-card { background: #fff; padding: 20px; border-radius: 10px; flex: 1; text-align: center; box-shadow: 0 1px 4px rgba(0,0,0,0.05); }
.stat-card h3 { font-size: 28px; color: var(--primary); }

.admin-table { width: 100%; border-collapse: collapse; margin-top: 10px; background: #fff; }
.admin-table th, .admin-table td { padding: 10px; border-bottom: 1px solid var(--border); text-align: left; font-size: 14px; }

.settings-form { background: #fff; padding: 24px; border-radius: 10px; max-width: 700px; }
.settings-form label { display: block; margin-top: 14px; font-weight: 600; font-size: 14px; }
.settings-form input, .settings-form textarea, .settings-form select { width: 100%; padding: 10px; margin-top: 6px; border: 1px solid var(--border); border-radius: 6px; font-family: monospace; font-size: 13px; }
.settings-form .hint { color: #777; font-size: 13px; margin-top: 4px; }
.settings-form button { margin-top: 20px; padding: 12px 24px; background: var(--primary); color: #fff; border: none; border-radius: 6px; font-weight: 600; cursor: pointer; }
.success { color: #2e7d32; background: #e8f5e9; padding: 10px; border-radius: 6px; margin: 10px 0; }