/* ===================================================================
   สำนักงานบัญชีเทียนพรรณ — shared stylesheet
   ใช้ร่วมทุกหน้า (index / knowledge / training)
=================================================================== */
:root{
  --navy:#0f2b46;
  --navy-2:#16395c;
  --gold:#c8a24b;
  --gold-light:#e3c982;
  --bg:#f7f9fb;
  --text:#27323d;
  --muted:#5d6b78;
  --white:#ffffff;
  --line-green:#06c755;
  --green:#1f9d6b;
  --radius:16px;
  --shadow:0 10px 40px rgba(15,43,70,.10);
  --shadow-sm:0 4px 16px rgba(15,43,70,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Prompt',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  color:var(--text);background:var(--bg);line-height:1.7;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:880px;margin:0 auto;padding:0 24px}
a{text-decoration:none;color:inherit}
img{max-width:100%}
section{padding:80px 0}
h1,h2,h3,h4{font-weight:600;line-height:1.3;color:var(--navy)}
.eyebrow{color:var(--gold);font-weight:600;letter-spacing:1px;font-size:.85rem;text-transform:uppercase;margin-bottom:12px}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;
  font-weight:600;font-size:.95rem;transition:transform .15s,box-shadow .2s;cursor:pointer;border:none}
.btn-primary{background:var(--gold);color:var(--navy)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,162,75,.4)}
.btn-line{background:var(--line-green);color:#fff}
.btn-line:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(6,199,85,.35)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(15,43,70,.3)}
.btn-outline{background:transparent;color:var(--navy);border:1.5px solid rgba(15,43,70,.2)}
.btn-outline:hover{border-color:var(--gold);color:var(--gold)}

/* ===== Header / Nav ===== */
header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid rgba(15,43,70,.07)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.12rem;color:var(--navy)}
.logo-img{height:40px;width:auto;display:block}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--muted);font-weight:500;font-size:.95rem;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--navy)}
.nav-links a.active{position:relative}
.nav-links a.active::after{content:"";position:absolute;left:0;bottom:-6px;width:100%;height:2px;background:var(--gold);border-radius:2px}
.nav .btn{padding:10px 18px}
@media(max-width:880px){.nav-links a:not(.btn){display:none}}

/* ===== Hero (home) ===== */
.hero{background:radial-gradient(1200px 500px at 80% -10%,rgba(200,162,75,.18),transparent 60%),
  linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;padding:90px 0 86px;position:relative;overflow:hidden}
.hero h1{color:#fff;font-size:clamp(2rem,5vw,3.2rem);font-weight:700;letter-spacing:-.5px}
.hero .tagline{color:var(--gold-light);font-size:clamp(1.05rem,2.3vw,1.4rem);font-weight:500;margin-top:14px}
.hero p.lead{color:rgba(255,255,255,.82);font-size:1.08rem;margin-top:22px;max-width:620px}
.hero-cta{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-badge{display:inline-block;background:rgba(200,162,75,.15);border:1px solid rgba(200,162,75,.35);
  color:var(--gold-light);padding:7px 16px;border-radius:999px;font-size:.88rem;font-weight:500;margin-bottom:24px}

/* ===== Page hero (inner pages) ===== */
.page-hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff;padding:64px 0;text-align:center}
.page-hero h1{color:#fff;font-size:clamp(1.8rem,4vw,2.6rem)}
.page-hero p{color:rgba(255,255,255,.82);margin-top:14px;max-width:640px;margin-left:auto;margin-right:auto}
.breadcrumb{color:var(--gold-light);font-size:.9rem;margin-bottom:14px}
.breadcrumb a{color:rgba(255,255,255,.7)}

/* ===== Stats ===== */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:52px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:26px 20px;text-align:center}
.stat .num{font-size:2.3rem;font-weight:700;color:var(--gold);line-height:1}
.stat .label{color:rgba(255,255,255,.8);margin-top:8px;font-size:.95rem}
@media(max-width:620px){.stats{grid-template-columns:1fr;gap:14px}}

/* ===== Section heads ===== */
.section-head{text-align:center;max-width:680px;margin:0 auto 48px}
.section-head h2{font-size:clamp(1.6rem,3.5vw,2.2rem)}
.section-head p{color:var(--muted);margin-top:14px}

/* ===== 3 Paths (home) ===== */
.paths{background:#fff}
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.path{display:flex;flex-direction:column;background:var(--bg);border:1px solid rgba(15,43,70,.06);
  border-radius:var(--radius);padding:32px 28px;transition:transform .18s,box-shadow .2s}
.path:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.path .ic{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--navy-2));
  color:var(--gold);display:grid;place-items:center;font-size:1.6rem;margin-bottom:18px}
.path h3{font-size:1.25rem}
.path p{color:var(--muted);margin-top:10px;font-size:.96rem;flex:1}
.path .go{margin-top:18px;color:var(--gold);font-weight:600;font-size:.95rem}
.path:hover .go{color:var(--navy)}
@media(max-width:820px){.path-grid{grid-template-columns:1fr}}

/* ===== Generic card grids ===== */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:#fff;border-radius:var(--radius);padding:28px 26px;box-shadow:var(--shadow-sm);
  border:1px solid rgba(15,43,70,.05);transition:transform .18s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card .ic{width:50px;height:50px;border-radius:13px;background:linear-gradient(135deg,var(--navy),var(--navy-2));
  color:var(--gold);display:grid;place-items:center;font-size:1.45rem;margin-bottom:16px}
.card h3{font-size:1.12rem}
.card p{color:var(--muted);margin-top:10px;font-size:.95rem}
.card ul{margin-top:12px;padding-left:0;list-style:none;display:grid;gap:8px}
.card ul li{display:flex;gap:9px;color:var(--text);font-size:.94rem}
.card ul li::before{content:"›";color:var(--gold);font-weight:700}
@media(max-width:820px){.card-grid-3,.card-grid-2{grid-template-columns:1fr}}

/* Course curriculum cards — horizontal header + divider (จัดให้แน่นขึ้น) */
.course-card{display:flex;flex-direction:column}
.course-card .course-head{display:flex;align-items:center;gap:14px}
.course-card .course-head .ic{margin-bottom:0;flex-shrink:0}
.course-card .course-head h3{margin:0}
.course-card ul{margin-top:16px;padding-top:16px;border-top:1px solid rgba(15,43,70,.08)}

/* From → To transformation (จากแค่เซ็น → เข้าใจงบ) */
.transform{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:stretch;max-width:840px;margin:0 auto}
.transform .t-box{background:#fff;border:1px solid rgba(15,43,70,.08);border-radius:var(--radius);padding:24px 26px;box-shadow:var(--shadow-sm)}
.transform .t-box.from{border-top:4px solid #d9534f}
.transform .t-box.to{border-top:4px solid var(--green)}
.transform .t-label{font-weight:600;margin-bottom:8px;font-size:1.05rem}
.transform .t-box.from .t-label{color:#c0392b}
.transform .t-box.to .t-label{color:var(--green)}
.transform .t-box p{color:var(--muted);font-size:.95rem;margin:0;line-height:1.6}
.transform .arrow{display:grid;place-items:center;font-size:1.8rem;color:var(--gold);font-weight:700}
@media(max-width:680px){.transform{grid-template-columns:1fr;gap:14px}.transform .arrow{transform:rotate(90deg)}}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about p{color:var(--muted);margin-top:18px}
.checklist{list-style:none;margin-top:24px;display:grid;gap:12px}
.checklist li{display:flex;gap:12px;align-items:flex-start;color:var(--text)}
.checklist .ic{color:var(--gold);font-weight:700;flex-shrink:0}
.about-card{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#fff;border-radius:24px;padding:40px;box-shadow:var(--shadow)}
.about-card h3{color:#fff;font-size:1.4rem}
.about-card p{color:rgba(255,255,255,.8)}
.about-card .quote{font-size:1.05rem;font-style:italic;color:var(--gold-light);border-left:3px solid var(--gold);padding-left:18px;margin-top:20px}
@media(max-width:820px){.about-grid{grid-template-columns:1fr;gap:34px}}

/* ===== Problems / services ===== */
.problem-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.problem{display:flex;gap:14px;align-items:flex-start;background:var(--bg);border:1px solid rgba(15,43,70,.06);
  border-radius:14px;padding:20px 22px;transition:transform .15s,box-shadow .2s}
.problem:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.problem .ic{width:34px;height:34px;border-radius:9px;flex-shrink:0;background:rgba(200,162,75,.15);
  color:var(--gold);display:grid;place-items:center;font-size:1.1rem}
.problem span{color:var(--text);font-size:.97rem;line-height:1.55}
@media(max-width:720px){.problem-grid{grid-template-columns:1fr}}

/* ===== Monthly routine timeline ===== */
.timeline{display:grid;gap:0;max-width:760px;margin:0 auto;position:relative}
.tl-item{display:grid;grid-template-columns:54px 1fr;gap:20px;padding-bottom:28px;position:relative}
.tl-item:not(:last-child)::before{content:"";position:absolute;left:26px;top:50px;bottom:-4px;width:2px;background:rgba(200,162,75,.3)}
.tl-num{width:52px;height:52px;border-radius:50%;background:var(--navy);color:var(--gold);
  display:grid;place-items:center;font-weight:700;font-size:1.1rem;flex-shrink:0;z-index:1}
.tl-body{background:#fff;border:1px solid rgba(15,43,70,.06);border-radius:14px;padding:18px 22px;box-shadow:var(--shadow-sm)}
.tl-body h4{font-size:1.05rem}
.tl-body p{color:var(--muted);margin-top:6px;font-size:.94rem}

/* ===== Checklist accordion (knowledge) ===== */
.acc{display:grid;gap:14px;max-width:860px;margin:0 auto}
.acc-item{background:#fff;border:1px solid rgba(15,43,70,.08);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm)}
.acc-head{display:flex;align-items:center;gap:16px;padding:20px 24px;cursor:pointer;user-select:none}
.acc-head .no{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--navy),var(--navy-2));
  color:var(--gold);display:grid;place-items:center;font-weight:700;flex-shrink:0}
.acc-head h3{font-size:1.08rem;flex:1}
.acc-head .arrow{color:var(--gold);font-size:1.3rem;transition:transform .25s;flex-shrink:0}
.acc-item.open .acc-head .arrow{transform:rotate(180deg)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 24px}
.acc-item.open .acc-body{max-height:900px;padding:0 24px 22px 78px}
.acc-body ul{list-style:none;display:grid;gap:10px}
.acc-body ul li{display:flex;gap:10px;color:var(--text);font-size:.96rem;line-height:1.5}
.acc-body ul li::before{content:"✓";color:var(--green);font-weight:700;flex-shrink:0}
.acc-body .sub{margin:6px 0 2px 26px;color:var(--muted);font-size:.9rem;display:grid;gap:6px}
.acc-body .sub li::before{content:"–";color:var(--muted)}
.acc-body .note{margin-left:26px;color:var(--muted);font-size:.88rem;font-style:italic}

/* ===== Tax calendar table ===== */
.table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid rgba(15,43,70,.06);max-width:860px;margin:0 auto}
table.data{width:100%;border-collapse:collapse;background:#fff;min-width:540px}
table.data th{background:var(--navy);color:#fff;text-align:left;padding:15px 20px;font-weight:600;font-size:.95rem}
table.data td{padding:14px 20px;border-top:1px solid rgba(15,43,70,.07);font-size:.95rem;vertical-align:top}
table.data tr:hover td{background:rgba(200,162,75,.06)}
table.data .badge{display:inline-block;background:rgba(200,162,75,.15);color:#9a7a2e;border-radius:6px;padding:2px 9px;font-weight:600;font-size:.85rem}
.table-note{max-width:860px;margin:14px auto 0;color:var(--muted);font-size:.88rem;text-align:center}

/* ===== Pricing (training) ===== */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:920px;margin:0 auto}
.price{background:#fff;border:1px solid rgba(15,43,70,.08);border-radius:var(--radius);padding:32px 26px;text-align:center;box-shadow:var(--shadow-sm);position:relative}
.price.featured{border:2px solid var(--gold);box-shadow:var(--shadow)}
.price .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--gold);color:var(--navy);
  font-size:.78rem;font-weight:700;padding:4px 14px;border-radius:999px}
.price .who{color:var(--muted);font-weight:500}
.price .amt{font-size:2.4rem;font-weight:700;color:var(--navy);margin:10px 0 2px}
.price .amt small{font-size:1rem;color:var(--muted);font-weight:500}
.price .per{color:var(--muted);font-size:.9rem}
.price .save{display:inline-block;margin-top:10px;background:rgba(31,157,107,.12);color:var(--green);font-weight:600;font-size:.85rem;padding:3px 12px;border-radius:999px}
@media(max-width:820px){.price-grid{grid-template-columns:1fr;max-width:420px}}
.price-example{max-width:560px;margin:34px auto 0;background:#fff;border:1px dashed rgba(200,162,75,.5);border-radius:14px;padding:20px 24px;text-align:center;color:var(--muted)}
.price-example b{color:var(--navy)}

/* ===== Booking embed (Google Appointment Schedule) ===== */
.booking-embed{max-width:880px;margin:0 auto;background:#fff;border:1px solid rgba(15,43,70,.08);
  border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;padding:8px}
.booking-embed iframe{display:block;width:100%;border-radius:10px;min-height:620px}
@media(max-width:600px){.booking-embed iframe{min-height:560px}}

/* ===== Map embed (หน้าติดต่อ) ===== */
.map-wrap{max-width:980px;margin:30px auto 0;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.15)}
.map-wrap iframe{display:block;width:100%;height:380px;border:0}
@media(max-width:600px){.map-wrap iframe{height:320px}}
.office-info{max-width:700px;margin:32px auto 0;text-align:center;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.13);border-radius:var(--radius);padding:26px 30px}
.office-info h3{color:#fff;font-size:1.25rem}
.office-info h3 span{color:var(--gold-light);font-weight:500;font-size:.95rem}
.office-info p{color:rgba(255,255,255,.85);margin-top:10px;font-size:1rem}

/* ===== CTA band ===== */
.cta-band{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#fff;text-align:center}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,3.5vw,2rem)}
.cta-band p{color:rgba(255,255,255,.8);margin-top:12px;max-width:560px;margin-left:auto;margin-right:auto}
.cta-band .hero-cta{justify-content:center}

/* ===== Contact ===== */
.contact{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 100%);color:#fff}
.contact .section-head h2{color:#fff}
.contact .section-head p{color:rgba(255,255,255,.8)}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.contact-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);border-radius:var(--radius);
  padding:30px 24px;text-align:center;transition:transform .15s,background .2s}
.contact-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.contact-card .ic{font-size:2rem;margin-bottom:14px}
.contact-card .label{color:rgba(255,255,255,.65);font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}
.contact-card .value{color:#fff;font-size:1.3rem;font-weight:600;margin-top:6px;word-break:break-word}
.contact-card .value.email{font-size:1rem}
.contact .person{text-align:center;margin-top:40px;color:var(--gold-light);font-size:1.05rem}
@media(max-width:780px){.contact-grid{grid-template-columns:1fr}}

/* ===== Footer ===== */
footer{background:#0a1f33;color:rgba(255,255,255,.6);padding:40px 0;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;text-align:left}
footer .logo{color:#fff;margin-bottom:12px}
footer .logo-img{height:44px;background:#fff;border-radius:10px;padding:5px}
footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
footer a{display:block;color:rgba(255,255,255,.6);padding:4px 0;transition:color .2s}
footer a:hover{color:var(--gold-light)}
.footer-bottom{text-align:center;margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1)}
@media(max-width:720px){.footer-grid{grid-template-columns:1fr;gap:24px;text-align:center}footer .logo{justify-content:center}}

/* ===== Floating CTA ===== */
.float-cta{position:fixed;right:18px;bottom:18px;z-index:200;display:flex;flex-direction:column;gap:12px}
.float-cta a{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-size:1.5rem;
  box-shadow:0 6px 20px rgba(0,0,0,.25);transition:transform .15s}
.float-cta a:hover{transform:scale(1.08)}
.float-cta .fc-call{background:var(--gold);color:var(--navy)}
.float-cta .fc-line{background:var(--line-green);color:#fff}

/* ===== Utilities ===== */
.text-center{text-align:center}
.mt-32{margin-top:32px}
.lead-muted{color:var(--muted);max-width:720px;margin:0 auto;text-align:center}