/* ==========================================================
   Smartwork Edutainment IR Website — Public Site Stylesheet
   ========================================================== */
:root {
    --color-primary: #0b2545;      /* navy */
    --color-primary-light: #133a6b;
    --color-accent: #c9a24b;       /* gold */
    --color-accent-dark: #a9822f;
    --color-bg: #f5f7fa;
    --color-card: #ffffff;
    --color-text: #1c2733;
    --color-text-muted: #5b6b7c;
    --color-border: #e3e8ee;
    --radius: 10px;
    --shadow: 0 2px 10px rgba(11, 37, 69, 0.08);
    --font-th: 'Sarabun', 'Noto Sans Thai', sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-th);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.65;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent-dark); }

img { max-width: 100%; display: block; }

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- Top bar ---------- */
.topbar {
    background: var(--color-primary);
    color: #dbe4f0;
    font-size: 13px;
}
.topbar .container {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 18px;
    padding-top: 6px;
    padding-bottom: 6px;
}
.topbar a { color: #dbe4f0; }
.lang-switch a {
    padding: 2px 8px;
    border-radius: 4px;
}
.lang-switch a.active {
    background: var(--color-accent);
    color: var(--color-primary);
    font-weight: 700;
}

/* ---------- Header / Nav ---------- */
header.site-header {
    background: #fff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 20px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    color: var(--color-primary);
}
.brand img { height: 44px; width: auto; }
.brand .brand-text { line-height: 1.2; }
.brand .brand-text small {
    display: block;
    font-weight: 400;
    font-size: 12px;
    color: var(--color-text-muted);
}

nav.main-nav { flex: 1; }
nav.main-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 4px;
    margin: 0;
    padding: 0;
}
nav.main-nav a {
    display: block;
    padding: 10px 14px;
    color: var(--color-text);
    font-size: 15px;
    font-weight: 600;
    border-radius: 6px;
    white-space: nowrap;
}
nav.main-nav a:hover,
nav.main-nav a.active {
    background: var(--color-primary);
    color: #fff;
}
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 60%, #1c4d8f 100%);
    color: #fff;
    padding: 70px 0 90px;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: "";
    position: absolute;
    right: -80px; top: -80px;
    width: 340px; height: 340px;
    border-radius: 50%;
    background: rgba(201, 162, 75, 0.18);
}
.hero .tag {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-primary);
    padding: 5px 14px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 13px;
    margin-bottom: 18px;
}
.hero h1 {
    font-size: 38px;
    margin: 0 0 14px;
    max-width: 720px;
}
.hero p { max-width: 600px; color: #dbe4f0; font-size: 16px; }

/* ---------- Section ---------- */
.section { padding: 56px 0; }
.section-alt { background: #fff; }
.section-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 26px;
    flex-wrap: wrap;
    gap: 10px;
}
.section-head h2 {
    font-size: 24px;
    color: var(--color-primary);
    margin: 0;
    border-left: 5px solid var(--color-accent);
    padding-left: 12px;
}
.section-head .more { font-size: 14px; font-weight: 700; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 20px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}

.kpi-card { text-align: center; }
.kpi-card .value { font-size: 28px; font-weight: 800; color: var(--color-primary); }
.kpi-card .unit { font-size: 13px; color: var(--color-text-muted); margin-left: 4px; }
.kpi-card .label { margin-top: 6px; font-size: 14px; color: var(--color-text-muted); }

.news-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
}
.news-item:last-child { border-bottom: none; }
.news-item .date-box {
    flex: 0 0 70px;
    text-align: center;
    background: var(--color-primary);
    color: #fff;
    border-radius: 8px;
    padding: 8px 4px;
    font-size: 13px;
    height: fit-content;
}
.news-item .date-box .d { font-size: 20px; font-weight: 800; display: block; }
.news-item .tag-badge {
    display: inline-block;
    font-size: 12px;
    padding: 2px 9px;
    border-radius: 999px;
    background: #eef3fa;
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 4px;
}
.news-item h3 { margin: 4px 0; font-size: 16px; }
.news-item p { margin: 0; color: var(--color-text-muted); font-size: 14px; }

.doc-list { list-style: none; margin: 0; padding: 0; }
.doc-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: 10px;
    background: #fff;
}
.doc-row .icon {
    flex: 0 0 40px;
    height: 40px;
    border-radius: 8px;
    background: #eef3fa;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 12px;
}
.doc-row .cover {
    flex: 0 0 46px;
    width: 46px;
    height: 62px;
    object-fit: cover;
    border-radius: 4px;
    box-shadow: 0 2px 6px rgba(11, 37, 69, 0.35);
    border: 1px solid rgba(11, 37, 69, 0.1);
}
.doc-row .meta { flex: 1; }
.doc-row .meta small { color: var(--color-text-muted); }
.btn {
    display: inline-block;
    background: var(--color-primary);
    color: #fff !important;
    padding: 9px 18px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 14px;
    border: none;
    cursor: pointer;
}
.btn:hover { background: var(--color-primary-light); }
.btn-accent { background: var(--color-accent); color: var(--color-primary) !important; }
.btn-accent:hover { background: var(--color-accent-dark); }
.btn-outline {
    background: transparent;
    color: var(--color-primary) !important;
    border: 1px solid var(--color-primary);
}
.btn-sm { padding: 6px 12px; font-size: 13px; }

table.data-table { width: 100%; border-collapse: collapse; background: #fff; }
table.data-table th, table.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    font-size: 14px;
}
table.data-table th { background: var(--color-primary); color: #fff; }
table.data-table tr:nth-child(even) { background: #f7f9fc; }

.breadcrumb { font-size: 13px; color: var(--color-text-muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--color-text-muted); }

.page-title { color: var(--color-primary); font-size: 28px; margin-bottom: 6px; }
.page-subtitle { color: var(--color-text-muted); margin-bottom: 30px; }

.notice-box {
    background: #fff7e6;
    border: 1px solid #f0d999;
    color: #7a5c00;
    padding: 14px 18px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 24px;
}

.people-card { text-align: center; }
.people-card img {
    width: 120px; height: 120px;
    object-fit: cover;
    border-radius: 50%;
    margin: 0 auto 12px;
    border: 3px solid var(--color-accent);
}
.people-card h4 { margin: 4px 0 2px; font-size: 15px; }
.people-card p { margin: 0; font-size: 13px; color: var(--color-text-muted); }

form.form-box .form-row { margin-bottom: 16px; }
form.form-box label { display: block; font-weight: 700; margin-bottom: 6px; font-size: 14px; }
form.form-box input[type=text],
form.form-box input[type=email],
form.form-box input[type=tel],
form.form-box select,
form.form-box textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
}
form.form-box textarea { min-height: 120px; resize: vertical; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }

.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 20px; font-size: 14px; }
.alert-success { background: #e7f6ec; color: #1e7a3e; border: 1px solid #b7e3c4; }
.alert-error { background: #fdeaea; color: #a31f1f; border: 1px solid #f3bcbc; }

/* ---------- Footer ---------- */
footer.site-footer {
    background: var(--color-primary);
    color: #c6d3e6;
    padding: 46px 0 20px;
    margin-top: 40px;
    font-size: 14px;
}
footer.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
footer.site-footer a { color: #c6d3e6; }
footer.site-footer a:hover { color: var(--color-accent); }
footer.site-footer ul { list-style: none; margin: 0; padding: 0; }
footer.site-footer li { margin-bottom: 8px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 26px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    margin-top: 30px;
    padding-top: 16px;
    font-size: 13px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    color: #9db0c9;
}

/* ---------- Pagination ---------- */
.pagination { display: flex; gap: 6px; margin-top: 26px; flex-wrap: wrap; }
.pagination a, .pagination span {
    padding: 7px 12px;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    font-size: 14px;
    background: #fff;
}
.pagination .current { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
    nav.main-nav {
        display: none;
        width: 100%;
        order: 3;
    }
    nav.main-nav.open { display: block; }
    nav.main-nav ul { flex-direction: column; }
    .header-inner { flex-wrap: wrap; }
    .nav-toggle {
        display: block;
        margin-left: auto;
        background: var(--color-primary);
        color: #fff;
        border: none;
        border-radius: 6px;
        padding: 8px 12px;
        font-size: 18px;
    }
    .hero h1 { font-size: 28px; }
    .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
}