/* ── Reset & Variables ──────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --green:#1a7e3f;--green2:#145c2e;--gold:#c9a227;
  --bg:#f0f4f8;--surface:#fff;--border:#e5e7eb;
  --text:#1a1a2e;--muted:#6b7280;--red:#dc2626;
  --r:12px;--sh:0 2px 12px rgba(0,0,0,.08);--sh-lg:0 8px 32px rgba(0,0,0,.14)
}
html{scroll-behavior:smooth}
body{font-family:'Sarabun',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:15px;line-height:1.65}

/* ── NAV ────────────────────────────────────────────────────── */
nav{position:sticky;top:0;z-index:200;background:var(--green);color:#fff;
    display:flex;align-items:center;gap:10px;padding:0 20px;height:56px;
    box-shadow:0 2px 8px rgba(0,0,0,.25)}
.nav-logo{font-size:1.05rem;font-weight:800;white-space:nowrap}
.nav-logo span{color:var(--gold)}
.nav-tabs{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{padding:6px 14px;border-radius:6px;cursor:pointer;font-size:.82rem;font-weight:500;
         white-space:nowrap;transition:all .2s;color:rgba(255,255,255,.75);border:none;background:transparent;font-family:inherit}
.nav-tab:hover{background:rgba(255,255,255,.15);color:#fff}
.nav-tab.active{background:var(--gold);color:#1a1a2e;font-weight:700}
.nav-tab .close-tab{margin-left:6px;opacity:.6;font-size:.8rem}
.nav-tab .close-tab:hover{opacity:1}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:8px;white-space:nowrap}
.nav-right .user-name{font-size:.8rem;color:rgba(255,255,255,.8)}
.nav-right a{color:rgba(255,255,255,.75);text-decoration:none;font-size:.82rem;
             padding:4px 10px;border-radius:6px;transition:background .2s}
.nav-right a:hover{background:rgba(255,255,255,.15)}

/* ── Views ──────────────────────────────────────────────────── */
.view{display:none}
.view.active{display:block;animation:fadeUp .3s ease-out}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

/* ── OVERVIEW ───────────────────────────────────────────────── */
.overview{padding:28px 24px 56px}
.page-title{text-align:center;margin-bottom:28px}
.page-title h1{font-size:1.9rem;font-weight:800;color:var(--green);line-height:1.25}
.page-title p{color:var(--muted);font-size:.95rem;margin-top:5px}
.summary-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-bottom:32px}
.strip-card{background:var(--surface);border-radius:var(--r);padding:18px 14px;text-align:center;
            box-shadow:var(--sh);border-bottom:4px solid var(--green)}
.strip-card .big{font-size:2rem;font-weight:800;color:var(--green);line-height:1}
.strip-card .lbl{font-size:.8rem;color:var(--muted);margin-top:5px}
/*.areas-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}*/
/* โค้ดที่แก้ไขแล้ว */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* กำหนดให้มี 3 คอลัมน์ที่ขนาดเท่ากัน */
    gap: 18px;
}
.area-card{background:var(--surface);border-radius:var(--r);box-shadow:var(--sh);cursor:pointer;
    transition:all .25s cubic-bezier(.4,0,.2,1);overflow:hidden;border:2px solid transparent}
.area-card:hover{transform:translateY(-6px);box-shadow:var(--sh-lg)}
.area-card-head{padding:18px 18px 12px;display:flex;align-items:flex-start;gap:12px}
.area-icon{width:50px;height:50px;border-radius:12px;display:flex;align-items:center;
           justify-content:center;font-size:1.6rem;flex-shrink:0}
.area-card-head .info h3{font-size:1.15rem;font-weight:700;line-height:1.2}
.area-card-head .info .strat{font-size:.77rem;color:var(--muted);margin-top:2px}
.area-card-stats{padding:0 18px 14px;display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.stat-pill{text-align:center;padding:8px 2px;border-radius:8px;background:var(--bg)}
.stat-pill .num{font-size:1.2rem;font-weight:700}
.stat-pill .lbl{font-size:.7rem;color:var(--muted);margin-top:1px}
.area-card-foot{padding:8px 18px 14px;border-top:1px solid var(--border)}
.kr-preview .kr-item{display:flex;gap:5px;align-items:flex-start;margin-bottom:3px;font-size:.8rem;color:var(--muted)}
.kr-dot{width:5px;height:5px;border-radius:50%;background:currentColor;margin-top:7px;flex-shrink:0}

/* ── AREA DETAIL ────────────────────────────────────────────── */
.area-detail{padding:0 0 60px}
.area-hero{padding:28px 24px 20px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:flex-start;gap:18px}
.hero-icon{width:68px;height:68px;border-radius:16px;display:flex;align-items:center;
           justify-content:center;font-size:2.4rem;flex-shrink:0}
.hero-text h1{font-size:1.7rem;font-weight:800}
.hero-text .strategy{font-size:.88rem;color:var(--muted);margin-top:3px}
.hero-stats{display:flex;gap:12px;margin-top:12px;flex-wrap:wrap}
.h-stat{display:flex;align-items:center;gap:5px;background:var(--bg);padding:5px 12px;border-radius:16px;font-size:.82rem;font-weight:600}
.sect{margin:24px 24px 0}
.sect-head{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.sect-head::after{content:'';flex:1;height:2px;background:var(--border)}
.sect-head .edit-btn{font-size:.78rem;font-weight:600;padding:3px 10px;border-radius:6px;
    border:1px solid;cursor:pointer;white-space:nowrap;font-family:inherit;transition:all .2s}

/* ── CONCEPT ────────────────────────────────────────────────── */
.concept-box{background:linear-gradient(135deg,#f0f9f4,#e8f5e9);border-radius:var(--r);
    border-left:5px solid var(--green);padding:18px 22px}
.concept-box .label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;
    color:var(--green);margin-bottom:7px}
.concept-box p{font-size:.88rem;color:#2d4a3e;line-height:1.8}

/* ── TABLE ──────────────────────────────────────────────────── */
.tbl-wrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;background:var(--surface);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh);font-size:.83rem}
.tbl th{padding:10px 11px;text-align:left;font-weight:600}
.tbl td{padding:9px 11px;border-bottom:1px solid var(--border);vertical-align:top}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:nth-child(even) td{background:#f9fafb}
.num-b{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;
    font-size:.7rem;font-weight:700;color:#fff;flex-shrink:0}
.dept-tag{display:inline-block;background:#e5e7eb;padding:2px 8px;border-radius:10px;font-size:.73rem;color:#374151;font-weight:500}
.target{text-align:center;font-size:.77rem;color:var(--muted)}
.target.v{color:var(--green);font-weight:600}
.add-row-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;font-size:.82rem;font-weight:600;
    color:var(--green);background:#f0f9f4;border:2px dashed var(--green);border-radius:8px;
    cursor:pointer;width:100%;justify-content:center;margin-top:10px;font-family:inherit;transition:all .2s}
.add-row-btn:hover{background:#d1fae5}

/* ── ISSUES ACCORDION ───────────────────────────────────────── */
.issue-card{background:var(--surface);border-radius:var(--r);margin-bottom:14px;
    box-shadow:var(--sh);overflow:hidden;border:1px solid var(--border)}
.issue-hdr{padding:15px 18px;cursor:pointer;display:flex;align-items:center;gap:11px;
    transition:background .2s;user-select:none}
.issue-hdr:hover{background:#f9fafb}
.issue-num{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;
    justify-content:center;font-size:.95rem;font-weight:700;color:#fff;flex-shrink:0}
.issue-hdr h3{font-size:.97rem;font-weight:700;flex:1;line-height:1.3}
.chevron{transition:transform .3s;color:var(--muted);font-size:1.1rem}
.issue-hdr.open .chevron{transform:rotate(180deg)}
.issue-body{display:none;padding:4px 18px 18px;border-top:1px solid var(--border)}
.issue-body.open{display:block}
.goal-text{padding:10px 0 12px;font-size:.85rem;color:var(--muted);border-bottom:1px dashed var(--border);margin-bottom:4px}

/* ── PLAN ───────────────────────────────────────────────────── */
.plan-item{margin-top:12px;background:#f8fafc;border-radius:10px;border:1px solid #e2e8f0;overflow:hidden}
.plan-hdr{padding:11px 15px;cursor:pointer;display:flex;align-items:flex-start;gap:9px;
    transition:background .2s;user-select:none}
.plan-hdr:hover{background:#f1f5f9}
.plan-num{width:27px;height:27px;border-radius:7px;display:flex;align-items:center;
    justify-content:center;font-size:.76rem;font-weight:700;flex-shrink:0}
.plan-hdr h4{font-size:.88rem;font-weight:600;flex:1;line-height:1.4;padding-top:2px}
.p-chevron{transition:transform .3s;color:var(--muted);padding-top:3px;flex-shrink:0}
.plan-hdr.open .p-chevron{transform:rotate(180deg)}
.plan-krs{display:none;padding:6px 15px 12px;border-top:1px solid #e2e8f0}
.plan-krs.open{display:block}

/* ── EDIT BUTTONS ───────────────────────────────────────────── */
.edit-btn-sm{font-size:.75rem;padding:3px 9px;border-radius:5px;border:1px solid;cursor:pointer;
    font-family:inherit;font-weight:600;transition:all .2s;white-space:nowrap}
.eb-edit{border-color:#d1d5db;background:#f3f4f6;color:#374151}
.eb-edit:hover{background:#e5e7eb}
.eb-del{border-color:#fecaca;background:#fff;color:var(--red)}
.eb-del:hover{background:#fee2e2}
.eb-add{border-color:var(--green);background:#f0f9f4;color:var(--green)}
.eb-add:hover{background:#d1fae5}
.row-actions{display:flex;gap:4px;flex-shrink:0}

/* ── MODAL ──────────────────────────────────────────────────── */
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:300;
    align-items:center;justify-content:center;padding:20px}
.overlay.open{display:flex;animation:fadeIn .2s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{background:#fff;border-radius:16px;padding:32px;width:100%;max-width:620px;
    max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.3);animation:slideUp .3s ease-out}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal h2{font-size:1.3rem;font-weight:700;margin-bottom:18px;color:var(--green)}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.85rem;font-weight:600;color:#374151;margin-bottom:4px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:9px 12px;
    border:2px solid var(--border);border-radius:7px;font-size:.9rem;font-family:inherit;
    outline:none;transition:border-color .2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--green)}
.form-group textarea{resize:vertical;min-height:80px}
.targets-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px;
    padding-top:16px;border-top:1px solid var(--border)}
.btn{padding:9px 20px;border-radius:8px;border:none;cursor:pointer;font-family:inherit;
    font-size:.9rem;font-weight:600;transition:all .2s}
.btn-primary{background:var(--green);color:#fff}.btn-primary:hover{background:var(--green2)}
.btn-cancel{background:#e5e7eb;color:#374151}.btn-cancel:hover{background:#d1d5db}
.btn-danger{background:var(--red);color:#fff}.btn-danger:hover{background:#b91c1c}

/* ── TOAST ──────────────────────────────────────────────────── */
.toast{position:fixed;bottom:24px;right:24px;background:var(--green);color:#fff;
    padding:12px 20px;border-radius:10px;font-weight:600;font-size:.9rem;
    box-shadow:0 4px 16px rgba(0,0,0,.2);z-index:999;
    transform:translateX(140%);transition:transform .35s cubic-bezier(.4,0,.2,1)}
.toast.show{transform:translateX(0)}
.toast.err{background:var(--red)}
.toast.warn{background:#d97706}

/* ── Loading ────────────────────────────────────────────────── */
.loader{text-align:center;padding:60px 20px;color:var(--muted);font-size:1rem}
.spinner{display:inline-block;width:32px;height:32px;border:3px solid var(--border);
    border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:10px}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media(max-width:768px){
  .areas-grid{grid-template-columns:1fr}
  .summary-strip{grid-template-columns:repeat(2,1fr)}
  .area-hero,.sect{padding-left:14px;padding-right:14px}
  .hero-stats{gap:7px}
  .targets-grid{grid-template-columns:repeat(3,1fr)}
}

/* เพิ่มเติม: สำหรับแท็บเล็ต ถ้าอยากให้แสดง 2 คอลัมน์ */
@media(min-width: 769px) and (max-width: 1024px) {
  .areas-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-thumb{background:var(--green);border-radius:3px}