/* ============================================================
   m4-theme.css — Maintenance 4 Professional Theme
   ชั้น override: โหลด "หลัง" style.css เดิม
   โทน: Slate Navy + Teal · ฟอนต์: IBM Plex Sans Thai (TH/EN/VI)
   Responsive: Desktop ≥1280 / Laptop / iPad 1024 / Tablet 768 / Mobile ≤480
   ============================================================ */

:root {
    /* สีแบรนด์ — ค่าจริงถูก override จาก config.php ใน header */
    --m4-ink:         #0F2432;   /* navy เข้ม: header, หัวข้อ */
    --m4-ink-soft:    #1B3A4B;
    --m4-accent:      #0E7C7B;   /* teal: ปุ่ม, ลิงก์, ไฮไลต์ */
    --m4-accent-deep: #0A5C5B;
    --m4-accent-tint: #E6F2F1;

    --m4-surface:     #F5F7F9;   /* พื้นหลังหน้า */
    --m4-card:        #FFFFFF;
    --m4-line:        #DFE7EC;   /* เส้นแบ่ง hairline */

    --m4-text:        #1C2B33;
    --m4-muted:       #5B6B74;

    /* สีสถานะ (สากล) */
    --m4-pending:     #B45309;   /* amber-700 */
    --m4-pending-bg:  #FEF5E7;
    --m4-progress:    #0369A1;   /* sky-700 */
    --m4-progress-bg: #EAF4FB;
    --m4-done:        #15803D;   /* green-700 */
    --m4-done-bg:     #EAF6EE;
    --m4-cancel:      #64748B;
    --m4-cancel-bg:   #EEF1F4;

    --m4-radius:      10px;
    --m4-shadow:      0 1px 2px rgba(15,36,50,.06), 0 4px 16px rgba(15,36,50,.06);
    --m4-shadow-hover:0 4px 8px rgba(15,36,50,.08), 0 12px 28px rgba(15,36,50,.10);
}

/* ============ ฐาน: ฟอนต์และพื้น ============ */
html { scroll-behavior: smooth; }
body {
    font-family: 'IBM Plex Sans Thai', 'Segoe UI', Tahoma, sans-serif !important;
    background: var(--m4-surface) !important;
    color: var(--m4-text) !important;
    font-size: 15px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
    font-family: 'IBM Plex Sans Thai', sans-serif;
    color: var(--m4-ink);
    letter-spacing: -0.01em;
    line-height: 1.3;
}
a { color: var(--m4-accent); }
a:hover { color: var(--m4-accent-deep); }

/* ตัวเลขในตาราง/KPI เรียงตรงกัน */
table, .kpi-value, .noti-badge { font-variant-numeric: tabular-nums; }

/* ============ HEADER ============ */
.site-header {
    background: var(--m4-ink) !important;
    border-bottom: 2px solid var(--m4-accent) !important;   /* keyline ลายเซ็นแบรนด์ */
    box-shadow: 0 2px 12px rgba(15,36,50,.25);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.site-header-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 0 20px;
    min-height: 58px;
}

/* โลโก้: โมโนแกรมสี่เหลี่ยม + ชื่อระบบ */
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand::before {
    content: attr(data-initial);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: var(--m4-accent);
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: .02em;
    flex-shrink: 0;
}
.brand-title {
    color: #fff !important;
    font-size: 15px !important;
    font-weight: 700 !important;
    letter-spacing: .06em !important;
    white-space: nowrap;
}

/* เมนูไอคอน */
.main-nav { display: flex; align-items: center; gap: 2px; flex: 1; }
.main-nav .nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 8px;
    position: relative;
    transition: background .15s;
}
.main-nav .nav-icon i {
    color: #B9CBD4 !important;
    font-size: 16px !important;
    transition: color .15s;
}
.main-nav .nav-icon:hover { background: rgba(255,255,255,.08); }
.main-nav .nav-icon:hover i { color: #fff !important; }
.main-nav .nav-icon:focus-visible {
    outline: 2px solid var(--m4-accent);
    outline-offset: 2px;
}

/* badge จำนวนงานเปิด */
.noti-badge {
    position: absolute;
    top: 3px;
    right: 2px;
    min-width: 17px;
    height: 17px;
    padding: 0 4px;
    border-radius: 9px;
    background: #E4572E;
    color: #fff;
    font-size: 10.5px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--m4-ink);
}

/* ชื่อผู้ใช้ + logout */
.main-nav .user-info {
    color: #B9CBD4 !important;
    font-size: 12.5px !important;
    white-space: nowrap;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
}
.main-nav .logout-link {
    background: rgba(255,255,255,.10) !important;
    color: #fff !important;
    border: 1px solid rgba(255,255,255,.22) !important;
    border-radius: 8px !important;
    padding: 6px 14px !important;
    font-size: 12.5px !important;
    font-weight: 600;
    transition: background .15s;
}
.main-nav .logout-link:hover { background: var(--m4-accent) !important; border-color: var(--m4-accent) !important; }

/* ปุ่มภาษา */
.lang-switcher { display: flex; gap: 4px; align-items: center; margin-right: 8px; }
.lang-item {
    font-size: 11.5px;
    font-weight: 600;
    color: #B9CBD4;
    text-decoration: none;
    padding: 4px 11px;
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 14px;
    white-space: nowrap;
    transition: all .15s;
}
.lang-item:hover { border-color: #fff; color: #fff; }
.lang-active { background: var(--m4-accent); color: #fff !important; border-color: var(--m4-accent); }

/* ปุ่มเมนูมือถือ */
.nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid rgba(255,255,255,.25);
    border-radius: 8px;
    width: 40px;
    height: 40px;
    color: #fff;
    cursor: pointer;
    margin-left: auto;
}
.nav-toggle i { color: #fff !important; font-size: 16px; }

/* ============ FOOTER (อยู่ในโฟลว์ปกติ ไม่ลอยทับ) ============ */
.site-footer {
    position: static !important;
    background: var(--m4-ink) !important;
    border-top: 2px solid var(--m4-accent);
    margin-top: 48px;
    padding: 22px 20px !important;
}
body.has-fixed-footer { padding-bottom: 0 !important; }
.site-footer .footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 6px 24px;
}
.site-footer .footer-inner p { margin: 0 !important; }
.site-footer .footer-main {
    color: #fff !important;
    font-size: 13px !important;
    font-weight: 600;
}
.site-footer .footer-sub {
    color: #8FA6B2 !important;
    font-size: 12px !important;
}

/* ============ การ์ด KPI (dashboard) ============ */
.dashboard-kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 16px;
}
.kpi-card {
    background: var(--m4-card) !important;
    border: 1px solid var(--m4-line) !important;
    border-left: 4px solid var(--m4-line) !important;   /* status rail ลายเซ็น */
    border-radius: var(--m4-radius) !important;
    box-shadow: var(--m4-shadow) !important;
    padding: 18px 18px 16px !important;
    transition: transform .16s ease, box-shadow .16s ease;
}
.kpi-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--m4-shadow-hover) !important;
}
.kpi-label {
    font-size: 11px !important;
    font-weight: 700 !important;
    letter-spacing: .08em !important;
    text-transform: uppercase;
    color: var(--m4-muted) !important;
}
.kpi-value { font-size: 30px !important; font-weight: 700 !important; color: var(--m4-ink) !important; }
.kpi-unit  { font-size: 12px !important; color: var(--m4-muted) !important; }
.kpi-desc  { font-size: 12.5px !important; color: var(--m4-muted) !important; line-height: 1.55; }

/* rail สีตามประเภทการ์ด */
.kpi-warning  { border-left-color: var(--m4-pending) !important; }
.kpi-warning .kpi-value { color: var(--m4-pending) !important; }
.kpi-primary  { border-left-color: var(--m4-progress) !important; }
.kpi-primary .kpi-value { color: var(--m4-progress) !important; }
.kpi-success  { border-left-color: var(--m4-done) !important; }
.kpi-success .kpi-value { color: var(--m4-done) !important; }
.kpi-ac       { border-left-color: var(--m4-accent) !important; }
.kpi-ac .kpi-value { color: var(--m4-accent) !important; }
.kpi-project  { border-left-color: var(--m4-ink-soft) !important; }
.kpi-muted    { border-left-color: var(--m4-cancel) !important; }

/* ============ ปุ่ม ============ */
.btn, .pm-btn, button[type=submit], input[type=submit] {
    font-family: inherit;
    border-radius: 8px !important;
    font-weight: 600 !important;
    transition: background .15s, box-shadow .15s;
}
.btn-primary, .pm-btn-primary, button[type=submit], input[type=submit] {
    background: var(--m4-accent) !important;
    border: 1px solid var(--m4-accent) !important;
    color: #fff !important;
}
.btn-primary:hover, .pm-btn-primary:hover,
button[type=submit]:hover, input[type=submit]:hover {
    background: var(--m4-accent-deep) !important;
    border-color: var(--m4-accent-deep) !important;
}
.btn-secondary, .pm-btn-outline {
    background: #fff !important;
    border: 1px solid var(--m4-line) !important;
    color: var(--m4-text) !important;
}
.btn-secondary:hover, .pm-btn-outline:hover { border-color: var(--m4-accent) !important; color: var(--m4-accent) !important; }

/* ============ ฟอร์ม ============ */
.form-control, input[type=text], input[type=password], input[type=date],
input[type=number], input[type=email], input[type=time], select, textarea {
    font-family: inherit !important;
    border: 1px solid var(--m4-line) !important;
    border-radius: 8px !important;
    padding: 9px 12px !important;
    font-size: 14px !important;
    background: #fff;
    color: var(--m4-text);
    transition: border-color .15s, box-shadow .15s;
}
.form-control:focus, input:focus, select:focus, textarea:focus {
    outline: none !important;
    border-color: var(--m4-accent) !important;
    box-shadow: 0 0 0 3px rgba(14,124,123,.15) !important;
}
.form-label, label { font-weight: 600; color: var(--m4-ink); font-size: 13px; }

/* ============ ตาราง ============ */
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--m4-radius); }
table {
    background: #fff;
    border-collapse: collapse;
    width: 100%;
    box-shadow: var(--m4-shadow);
    border-radius: var(--m4-radius);
    overflow: hidden;
}
table thead th {
    background: var(--m4-ink) !important;
    color: #fff !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    letter-spacing: .04em;
    text-transform: uppercase;
    padding: 11px 14px !important;
    white-space: nowrap;
}
table tbody td {
    padding: 11px 14px !important;
    border-bottom: 1px solid var(--m4-line) !important;
    font-size: 13.5px;
    color: var(--m4-text);
}
table tbody tr:hover { background: var(--m4-accent-tint); }
table tbody tr:last-child td { border-bottom: none !important; }

/* ============ Badge สถานะ ============ */
.badge-status {
    display: inline-block;
    padding: 3px 12px !important;
    border-radius: 14px !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    white-space: nowrap;
}
.badge-waiting, .badge-new { background: var(--m4-pending-bg) !important; color: var(--m4-pending) !important; }
.badge-inprogress          { background: var(--m4-progress-bg) !important; color: var(--m4-progress) !important; }
.badge-done                { background: var(--m4-done-bg) !important; color: var(--m4-done) !important; }

/* ============ RESPONSIVE ============ */

/* iPad แนวนอน / laptop เล็ก */
@media (max-width: 1180px) {
    .main-nav .user-info { display: none; }   /* พื้นที่ไม่พอ: ซ่อนชื่อ เหลือปุ่ม logout */
}

/* iPad แนวตั้ง / tablet */
@media (max-width: 1024px) {
    .site-header-inner { min-height: 54px; }
    .main-nav .nav-icon { width: 38px; height: 38px; }
    .dashboard-kpi-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 13px; }
}

/* มือถือ + tablet เล็ก: เมนูสไลด์ลง */
@media (max-width: 820px) {
    .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

    .main-nav {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--m4-ink);
        border-bottom: 2px solid var(--m4-accent);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 8px 14px 16px;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height .28s ease, opacity .2s ease;
        box-shadow: 0 16px 32px rgba(15,36,50,.35);
    }
    body.nav-open .main-nav {
        max-height: calc(100vh - 56px);
        overflow-y: auto;
        opacity: 1;
    }

    /* เมนูเป็นแถวเต็ม แตะง่าย (สูง ≥44px ตามมาตรฐาน touch) */
    .main-nav .nav-icon {
        width: 100% !important;
        height: auto !important;
        justify-content: flex-start;
        gap: 12px;
        padding: 12px 10px;
        border-radius: 8px;
        border-bottom: 1px solid rgba(255,255,255,.07);
    }
    .main-nav .nav-icon i { font-size: 17px !important; width: 22px; text-align: center; }
    /* โชว์ชื่อเมนูจาก title ของลิงก์ */
    .main-nav .nav-icon::after {
        content: attr(title);
        color: #DCE7EC;
        font-size: 14px;
        font-weight: 500;
    }
    .noti-badge { position: static; margin-left: auto; border: none; }

    .main-nav .nav-spacer { display: none; }
    .main-nav .user-info {
        display: block;
        max-width: none;
        padding: 12px 10px 4px;
        font-size: 13px !important;
        border-top: 1px solid rgba(255,255,255,.12);
        margin-top: 6px;
    }
    .lang-switcher { margin: 10px 10px 4px; }
    .main-nav .logout-link {
        display: block;
        text-align: center;
        margin: 8px 10px 0;
        padding: 11px !important;
    }

    .site-footer .footer-inner { flex-direction: column; align-items: flex-start; gap: 3px; }
}

/* มือถือเล็ก */
@media (max-width: 480px) {
    body { font-size: 14px; }
    .brand-title { font-size: 13px !important; letter-spacing: .04em !important; }
    .dashboard-kpi-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .kpi-card { padding: 14px 13px 12px !important; }
    .kpi-value { font-size: 24px !important; }
    table thead th, table tbody td { padding: 9px 10px !important; font-size: 12.5px !important; }
    h1 { font-size: 21px; }
}

/* ============ Accessibility & Print ============ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media print {
    .site-header, .site-footer, .nav-toggle, .lang-switcher { display: none !important; }
    body { background: #fff !important; }
    .kpi-card, table { box-shadow: none !important; }
}