/* ===== The TCM Home — Design System ===== */
:root {
  --green:#4A7C59; --green-dark:#3A5F45; --green-light:#6B9E7A;
  --brown:#8B5E3C; --brown-light:#C4A882;
  --bg:#FAF7F2; --bg2:#F0EBE3; --bg3:#EDE5DA;
  --ink:#2C2825; --muted:#7A6F65; --rule:#D9CFC2;
  --blue:#3D6B8E; --red:#B4423E; --gold:#C68A3E;
  --white:#FFFFFF;
  --maxw:1200px; --maxw-read:780px;
  --radius:8px; --radius-sm:4px; --radius-lg:14px;
  --shadow:0 2px 8px rgba(44,40,37,.08);
  --shadow-lg:0 8px 30px rgba(44,40,37,.12);
  --serif:Georgia,'Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --mono:'SF Mono','Fira Code',Consolas,monospace;
}

/* ===== Reset ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--green);text-decoration:none;transition:color .2s}
a:hover{color:var(--green-dark);text-decoration:underline}
ul,ol{padding-left:1.4rem}
li{margin-bottom:.4rem}

/* ===== Layout ===== */
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.container-read{max-width:var(--maxw-read);margin:0 auto;padding:0 24px}
section{padding:56px 0}
section.tight{padding:32px 0}

/* ===== Typography ===== */
h1,h2,h3,h4{font-family:var(--serif);line-height:1.25;color:var(--ink);font-weight:700}
h1{font-size:2.2rem;letter-spacing:-.02em}
h2{font-size:1.7rem;margin-bottom:8px}
h3{font-size:1.3rem;margin-top:28px;margin-bottom:10px}
h4{font-size:1.1rem;margin-top:20px;margin-bottom:8px}
p{margin-bottom:14px}
strong{font-weight:700}
mark{background:rgba(74,124,89,.12);color:var(--green-dark);padding:1px 4px;border-radius:2px}

.section-eyebrow{display:inline-block;font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--green);margin-bottom:8px}
.section-header{text-align:center;margin-bottom:36px}
.section-header h2{margin-bottom:8px}
.section-header p{color:var(--muted);max-width:560px;margin:0 auto}
.divider{width:48px;height:3px;background:var(--green);margin:12px auto 0;border-radius:2px}

/* ===== Navigation ===== */
.nav{position:sticky;top:0;z-index:100;background:var(--white);border-bottom:1px solid var(--rule);box-shadow:0 1px 4px rgba(44,40,37,.04)}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-logo{font-family:var(--serif);font-size:1.4rem;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:6px}
.nav-logo:hover{text-decoration:none}
.nav-logo .leaf{font-size:1.3rem}
.nav-logo .accent{color:var(--green)}
.nav-links{display:flex;gap:4px;list-style:none;align-items:center}
.nav-links a{display:block;padding:8px 14px;font-size:.9rem;font-weight:600;color:var(--ink);border-radius:var(--radius-sm);transition:all .2s}
.nav-links a:hover{background:var(--bg2);color:var(--green);text-decoration:none}
.nav-links .nav-cta{background:var(--green);color:var(--white);padding:8px 18px;border-radius:20px}
.nav-links .nav-cta:hover{background:var(--green-dark);color:var(--white)}
.nav-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;padding:4px 8px;color:var(--ink)}

/* ===== Hero ===== */
.hero{background:linear-gradient(135deg,var(--green-dark) 0%,var(--green) 60%,#5A8E6B 100%);color:var(--white);padding:72px 0 64px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="60" height="60" viewBox="0 0 60 60"%3E%3Cg fill="none" stroke="rgba(255,255,255,0.04)" stroke-width="1"%3E%3Cpath d="M30 5 Q15 15 15 30 Q15 45 30 55 Q45 45 45 30 Q45 15 30 5Z"/%3E%3C/g%3E%3C/svg%3E');opacity:.5}
.hero .container{position:relative;z-index:1;max-width:760px;text-align:center}
.hero h1{color:var(--white);font-size:2.6rem;margin-bottom:16px}
.hero .hero-sub{font-size:1.15rem;opacity:.9;margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto}
.hero-search{display:flex;max-width:500px;margin:0 auto;gap:0}
.hero-search input{flex:1;padding:14px 20px;border:none;border-radius:24px 0 0 24px;font-size:1rem;outline:none}
.hero-search button{padding:14px 24px;background:var(--brown);color:var(--white);border:none;border-radius:0 24px 24px 0;font-weight:700;cursor:pointer;font-size:.95rem;transition:background .2s}
.hero-search button:hover{background:var(--ink)}

/* ===== Symptom Cards (Homepage) ===== */
.symptom-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:16px}
.symptom-card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius-lg);padding:24px 16px;text-align:center;transition:all .25s;cursor:pointer}
.symptom-card:hover{border-color:var(--green);box-shadow:var(--shadow-lg);transform:translateY(-2px);text-decoration:none}
.symptom-card .icon{font-size:2rem;margin-bottom:10px;display:block}
.symptom-card h3{font-size:1rem;margin-top:0;margin-bottom:4px;color:var(--ink)}
.symptom-card p{font-size:.82rem;color:var(--muted);margin:0}
.symptom-card .count{display:inline-block;margin-top:8px;font-size:.75rem;color:var(--green);font-weight:700}

/* ===== Article Cards ===== */
.article-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.article-card{background:var(--white);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;transition:all .25s}
.article-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:var(--green-light)}
.article-card-img{height:180px;background:linear-gradient(135deg,var(--bg2),var(--bg3));display:flex;align-items:center;justify-content:center;font-size:2.5rem}
.article-card-body{padding:20px}
.article-card-cat{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--green);margin-bottom:6px;display:block}
.article-card h3{font-size:1.15rem;margin-top:0;margin-bottom:8px;font-family:var(--serif)}
.article-card h3 a{color:var(--ink)}
.article-card h3 a:hover{text-decoration:none;color:var(--green)}
.article-card p{font-size:.9rem;color:var(--muted);margin-bottom:10px}
.article-card-meta{font-size:.8rem;color:var(--muted);display:flex;gap:12px;align-items:center}
.article-card-meta .tag{background:var(--bg2);padding:2px 8px;border-radius:3px;font-weight:600;color:var(--muted)}

/* ===== Method Cards (Homepage) ===== */
.method-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
.method-card{background:var(--bg2);border-radius:var(--radius-lg);padding:28px 20px;text-align:center;transition:all .25s;border:2px solid transparent}
.method-card:hover{border-color:var(--green);background:var(--white);box-shadow:var(--shadow);text-decoration:none}
.method-card .icon{font-size:2.2rem;margin-bottom:10px;display:block}
.method-card h3{font-size:1.1rem;margin-top:0;margin-bottom:4px;color:var(--ink)}
.method-card p{font-size:.85rem;color:var(--muted);margin:0}

/* ===== Buttons ===== */
.btn{display:inline-block;padding:12px 28px;border-radius:24px;font-weight:700;font-size:.95rem;cursor:pointer;transition:all .2s;border:none;text-decoration:none}
.btn-primary{background:var(--green);color:var(--white)}
.btn-primary:hover{background:var(--green-dark);color:var(--white);text-decoration:none;transform:translateY(-1px)}
.btn-brown{background:var(--brown);color:var(--white)}
.btn-brown:hover{background:var(--ink);color:var(--white);text-decoration:none}
.btn-ghost{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:var(--white);text-decoration:none;border-color:var(--white)}
.btn-outline{background:transparent;color:var(--green);border:2px solid var(--green)}
.btn-outline:hover{background:var(--green);color:var(--white);text-decoration:none}

/* ===== Breadcrumbs ===== */
.breadcrumbs{padding:16px 0;font-size:.85rem;color:var(--muted)}
.breadcrumbs a{color:var(--muted)}
.breadcrumbs a:hover{color:var(--green)}
.breadcrumbs span{margin:0 8px;color:var(--rule)}
.breadcrumbs .current{color:var(--ink);font-weight:600}

/* ===== Article Page ===== */
.article-header{background:var(--bg2);padding:40px 0 32px;border-bottom:1px solid var(--rule)}
.article-header .container-read{text-align:center}
.article-header .cat-badge{display:inline-block;background:var(--green);color:var(--white);padding:4px 14px;border-radius:14px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:14px}
.article-header h1{font-size:2rem;margin-bottom:12px;line-height:1.3}
.article-header .subtitle{font-size:1.05rem;color:var(--muted);max-width:600px;margin:0 auto 16px}
.article-meta{font-size:.82rem;color:var(--muted);display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.article-meta span{display:flex;align-items:center;gap:4px}

.article-body{padding:40px 0}
.article-body h2{font-size:1.5rem;margin-top:36px;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--rule)}
.article-body h3{font-size:1.2rem;color:var(--brown)}
.article-body p{font-size:1.05rem;line-height:1.8;margin-bottom:16px}
.article-body ul,.article-body ol{margin-bottom:16px}
.article-body li{margin-bottom:8px}
.article-body img{border-radius:var(--radius);margin:20px 0}
.article-body blockquote{border-left:4px solid var(--green);background:var(--bg2);padding:16px 20px;margin:20px 0;border-radius:0 var(--radius) var(--radius) 0;font-style:italic}

/* ===== Callouts ===== */
.callout{padding:16px 20px;margin:20px 0;border-radius:var(--radius);border-left:4px solid var(--green);background:var(--bg2)}
.callout-title{font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:6px;color:var(--green)}
.callout.warn{border-left-color:var(--gold);background:#FBF3E8}
.callout.warn .callout-title{color:var(--gold)}
.callout.danger{border-left-color:var(--red);background:#FBEEED}
.callout.danger .callout-title{color:var(--red)}
.callout.info{border-left-color:var(--blue);background:#EDF2F7}
.callout.info .callout-title{color:var(--blue)}
.callout p:last-child{margin-bottom:0}

/* ===== Key Takeaways Box ===== */
.takeaways{background:var(--bg2);border:1px solid var(--rule);border-radius:var(--radius);padding:20px 24px;margin:24px 0}
.takeaways h4{color:var(--green);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;margin-top:0;margin-bottom:10px}
.takeaways ul{margin-bottom:0}
.takeaways li{font-size:.95rem;margin-bottom:6px}

/* ===== Table ===== */
.table-wrap{overflow-x:auto;margin:20px 0;border:1px solid var(--rule);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th{background:var(--green);color:var(--white);padding:10px 14px;text-align:left;font-weight:700;font-size:.82rem}
td{padding:9px 14px;border-bottom:1px solid var(--rule);vertical-align:top}
tbody tr:nth-child(even){background:var(--bg2)}
tbody tr:hover{background:var(--bg3)}

/* ===== Tags & Badges ===== */
.tag{display:inline-block;font-size:.75rem;padding:2px 8px;border-radius:3px;font-weight:600}
.tag.green{background:var(--green);color:var(--white)}
.tag.brown{background:var(--brown);color:var(--white)}
.tag.outline{background:var(--bg2);color:var(--muted);border:1px solid var(--rule)}

/* ===== Related Articles (Article Page) ===== */
.related-articles{background:var(--bg2);padding:48px 0}
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}

/* ===== Ad Zone ===== */
.ad-zone{max-width:728px;margin:24px auto;text-align:center;min-height:90px;display:flex;align-items:center;justify-content:center;background:var(--bg2);border:1px dashed var(--rule);border-radius:var(--radius);color:var(--muted);font-size:.8rem}
.ad-zone::after{content:'Advertisement'}

/* ===== Hub Page (Symptom Category) ===== */
.hub-hero{background:linear-gradient(135deg,var(--green-dark),var(--green));color:var(--white);padding:56px 0 48px;text-align:center}
.hub-hero h1{color:var(--white);font-size:2.2rem;margin-bottom:12px}
.hub-hero p{font-size:1.1rem;opacity:.9;max-width:560px;margin:0 auto}
.hub-section{padding:48px 0}
.hub-section h2{margin-bottom:24px}

/* ===== Seasonal Banner ===== */
.seasonal-banner{background:linear-gradient(90deg,var(--brown),var(--brown-light));color:var(--white);padding:14px 0;text-align:center;font-size:.9rem}
.seasonal-banner strong{color:var(--white)}
.seasonal-banner a{color:var(--white);text-decoration:underline}

/* ===== Footer ===== */
footer{background:var(--ink);color:var(--bg);padding:48px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand h3{font-family:var(--serif);font-size:1.3rem;color:var(--white);margin-bottom:8px}
.footer-brand p{font-size:.85rem;opacity:.7;margin-bottom:12px}
.footer-col h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--green-light);margin-bottom:12px}
.footer-col ul{list-style:none;padding:0}
.footer-col li{margin-bottom:6px}
.footer-col a{font-size:.85rem;color:var(--bg);opacity:.7}
.footer-col a:hover{opacity:1;color:var(--green-light);text-decoration:none}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;display:flex;justify-content:space-between;align-items:center;font-size:.8rem;opacity:.6}
.footer-bottom a{color:var(--bg);opacity:.7}

/* ===== Legal Pages ===== */
.legal-page{padding:48px 0}
.legal-page h1{margin-bottom:8px}
.legal-page .updated{font-size:.82rem;color:var(--muted);margin-bottom:24px}
.legal-page h2{font-size:1.3rem;margin-top:32px;margin-bottom:10px}
.legal-page p{margin-bottom:14px}

/* ===== Responsive ===== */
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--white);flex-direction:column;padding:16px;box-shadow:var(--shadow-lg);border-top:1px solid var(--rule)}
  .nav-links.active{display:flex}
  .nav-links a{padding:12px 16px;width:100%}
  .nav-toggle{display:block}
  .hero h1{font-size:1.8rem}
  .hero .hero-sub{font-size:1rem}
  .hero-search{flex-direction:column;max-width:100%}
  .hero-search input{border-radius:8px 8px 0 0}
  .hero-search button{border-radius:0 0 8px 8px}
  h1{font-size:1.7rem}
  h2{font-size:1.4rem}
  section{padding:36px 0}
  .container,.container-read{padding:0 16px}
  .article-header h1{font-size:1.5rem}
  .article-body p{font-size:1rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:20px}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}
  .symptom-grid{grid-template-columns:repeat(2,1fr)}
  .article-grid{grid-template-columns:1fr}
  .method-grid{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:480px){
  .symptom-grid{grid-template-columns:1fr}
  .method-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}