/* ==========================================================================
   Daosheng Technical Consulting — site styles (rebuild of the Elementor look)
   ========================================================================== */

:root {
    --primary: #0e9f8f;
    --primary-dark: #0b7a6e;
    --primary-tint: #e6f4f1;
    --ink: #22313f;
    --muted: #64757f;
    --bg: #f6f9f8;
    --border: #e2eae8;
    --danger: #c0392b;
    --footer-bg: #16303c;
    --radius: 12px;
    --shadow: 0 2px 10px rgba(24, 58, 67, .07);
    --font-head: 'Roboto Slab', Georgia, 'Times New Roman', 'Noto Serif SC', serif;
    --font-body: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--ink);
    background: #fff;
    line-height: 1.65;
    font-size: 16px;
}

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

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

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.3; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* ---- Buttons ---- */

.btn {
    display: inline-block;
    padding: 11px 26px;
    border-radius: 999px;
    font-weight: 500;
    font-size: 15px;
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none !important;
    transition: background .2s, color .2s, border-color .2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-light { background: #fff; color: var(--primary-dark); }
.btn-light:hover { background: var(--primary-tint); }
.btn-outline { border-color: rgba(255,255,255,.75); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); }
.btn-ghost { background: var(--primary-tint); color: var(--primary-dark); }
.btn-ghost:hover { background: #d6ece7; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 7px 16px; font-size: 13px; }
.btn-block { width: 100%; }

/* ---- Header / nav ---- */

.site-header {
    position: sticky; top: 0; z-index: 50;
    background: #fff;
    border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 70px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none !important; }
.brand-mark {
    display: grid; place-items: center;
    width: 42px; height: 42px; border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; font-family: var(--font-head); font-weight: 700;
}
.brand-logo { display: block; height: 42px; width: auto; border-radius: 6px; object-fit: contain; }
.brand-text { font-family: var(--font-head); font-weight: 700; font-size: 19px; color: var(--ink); display: flex; flex-direction: column; line-height: 1.1; }
.brand-text small { font-family: var(--font-body); font-weight: 400; font-size: 11px; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; }
.main-nav { display: flex; align-items: center; gap: 22px; }
.main-nav > a { color: var(--ink); font-weight: 500; font-size: 15px; }
.main-nav > a:hover { color: var(--primary-dark); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 26px; color: var(--ink); cursor: pointer; }

/* ---- Hero ---- */

.hero {
    position: relative;
    color: #fff;
    background:
        radial-gradient(900px 420px at 85% -10%, rgba(255,255,255,.14), transparent 60%),
        linear-gradient(135deg, #0b7a6e, #0e9f8f 55%, #0f8d80);
    padding: 96px 0 104px;
    text-align: center;
    overflow: hidden;
}
.hero::after {
    content: ""; position: absolute; inset: auto -10% -60px -10%; height: 140px;
    background: #fff; border-radius: 50% 50% 0 0;
}
.hero-kicker { text-transform: uppercase; letter-spacing: .14em; font-size: 13px; opacity: .85; margin-bottom: 14px; }
.hero h1 { font-size: clamp(30px, 5vw, 50px); margin-bottom: 18px; }
.hero-sub { max-width: 640px; margin: 0 auto 30px; font-size: 18px; opacity: .92; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ---- Sections ---- */

.section { padding: 72px 0; }
.section-alt { background: var(--bg); }
.section-title { text-align: center; font-size: 32px; margin-bottom: 8px; }
.section-sub { text-align: center; color: var(--muted); margin-bottom: 44px; }
.section-more { text-align: center; margin-top: 36px; }

/* ---- Cards / grids ---- */

.card-grid { display: grid; gap: 26px; }
.card-grid.three { grid-template-columns: repeat(3, 1fr); }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }

.service-card { padding: 34px 26px; text-align: center; }
.service-icon {
    width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%;
    display: grid; place-items: center;
    background: var(--primary-tint); color: var(--primary-dark);
}
.service-icon svg { width: 30px; height: 30px; }
.service-card h3 { font-size: 20px; margin-bottom: 10px; }
.service-card p { color: var(--muted); font-size: 15px; }

/* ---- Experts ---- */

.expert-card { padding: 30px 20px; text-align: center; }
.expert-photo {
    width: 92px; height: 92px; border-radius: 50%;
    margin: 0 auto 16px; object-fit: cover;
}
.expert-initials {
    display: grid; place-items: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff; font-family: var(--font-head); font-size: 26px; font-weight: 700;
}
.expert-card h3 { font-size: 18px; }
.expert-credential { color: var(--primary-dark); font-weight: 500; font-size: 14px; }
.expert-title { color: var(--muted); font-size: 14px; }

/* ---- Article cards ---- */

.article-card { overflow: hidden; display: flex; flex-direction: column; }
.article-cover { display: block; aspect-ratio: 16 / 9; background: var(--primary-tint); }
.article-cover img { width: 100%; height: 100%; object-fit: cover; }
.article-cover-placeholder { display: grid; place-items: center; height: 100%; font-family: var(--font-head); font-size: 30px; color: var(--primary-dark); opacity: .6; }
.article-card-body { padding: 20px 22px 24px; }
.article-card-body h3 { font-size: 18px; margin: 4px 0 8px; }
.article-card-body p { color: var(--muted); font-size: 14.5px; }
.article-date { font-size: 13px; color: var(--primary-dark); text-transform: uppercase; letter-spacing: .06em; }
.article-author { color: var(--muted); font-size: 13.5px; margin-top: 10px; }

/* ---- Single article ---- */

.page-head { background: var(--primary-tint); padding: 48px 0; text-align: center; }
.page-head h1 { font-size: 34px; }
.page-head p { color: var(--muted); }

.article-hero { height: 320px; background-size: cover; background-position: center; }
.article-body { max-width: 820px; padding-top: 44px; padding-bottom: 72px; }
.article-body h1 { font-size: clamp(26px, 4vw, 38px); margin: 6px 0 10px; }
.article-content { margin-top: 26px; font-size: 17px; }
.article-content h2 { margin: 28px 0 12px; font-size: 24px; }
.article-content h3 { margin: 22px 0 10px; }
.article-content p { margin-bottom: 16px; }
.article-content ul, .article-content ol { margin: 0 0 16px 24px; }
.article-content img { border-radius: var(--radius); margin: 18px 0; }
.article-content blockquote { border-left: 4px solid var(--primary); padding: 6px 18px; background: var(--bg); border-radius: 0 8px 8px 0; margin-bottom: 16px; }
.article-back { margin-top: 34px; }

/* ---- Testimonials ---- */

.testimonial-slider { overflow: hidden; }
.testimonial-track { display: flex; transition: transform .6s ease; }
.testimonial {
    flex: 0 0 100%; text-align: center; padding: 10px 8%;
    font-size: 18px; font-style: italic; color: var(--ink);
}
.testimonial footer { margin-top: 18px; font-style: normal; display: flex; align-items: center; justify-content: center; gap: 12px; }
.testimonial-avatar {
    width: 46px; height: 46px; border-radius: 50%;
    display: grid; place-items: center;
    background: var(--primary); color: #fff; font-weight: 700; font-size: 15px;
}
.testimonial footer span:last-child { text-align: left; font-size: 14px; line-height: 1.35; }

/* ---- Footer ---- */

.site-footer { background: var(--footer-bg); color: #c8d6dc; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 40px; padding: 56px 20px 40px; }
.site-footer h4 { color: #fff; margin-bottom: 14px; }
.site-footer a { color: #9fc3bd; }
.site-footer p { font-size: 14.5px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.09); padding: 18px 0; font-size: 13.5px; }

/* ---- Flash messages ---- */

.flash { padding: 12px 20px; border-radius: 0 0 10px 10px; margin: 0 auto 18px; max-width: 1100px; font-size: 14.5px; }
.flash-success { background: #e2f5ec; color: #17643a; }
.flash-error { background: #fdecea; color: #8f2a20; }

/* ---- Forms ---- */

.form-card {
    max-width: 460px; margin: 0 auto;
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow); padding: 36px 34px;
}
.form-card h1 { font-size: 24px; margin-bottom: 6px; }
.form-sub { color: var(--muted); font-size: 14px; margin-bottom: 22px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-weight: 500; font-size: 14px; margin-bottom: 6px; }
.form-group label small { color: var(--muted); font-weight: 400; }
.form-group input, .form-group textarea, .form-group select {
    width: 100%; padding: 10px 14px;
    border: 1px solid var(--border); border-radius: 8px;
    font: inherit; color: var(--ink); background: #fff;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: 2px solid var(--primary); outline-offset: -1px; border-color: var(--primary);
}
.form-foot { margin-top: 18px; text-align: center; font-size: 14px; color: var(--muted); }
.form-wide { max-width: 860px; padding: 32px; }
.form-row { display: grid; grid-template-columns: 1fr 220px; gap: 18px; }
.form-actions { display: flex; gap: 12px; margin-top: 8px; }

/* ---- Tables / admin ---- */

.page-tools { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; gap: 16px; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 14.5px; vertical-align: middle; }
.table thead th { color: var(--muted); font-size: 12.5px; text-transform: uppercase; letter-spacing: .05em; }
.table tbody tr:hover { background: var(--bg); }
.table-actions { display: flex; gap: 8px; justify-content: flex-end; align-items: center; }
.table-actions form { display: inline; }
.table-empty { text-align: center; color: var(--muted); padding: 30px 0 !important; }

.badge { display: inline-block; padding: 3px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 500; }
.badge-published { background: #e2f5ec; color: #17643a; }
.badge-draft { background: #eef1f3; color: #5b6a74; }
.badge-role-admin { background: #fdf0d8; color: #8a5a12; }
.badge-role-expert { background: #e3eefb; color: #27548f; }
.badge-role-member { background: #eef1f3; color: #5b6a74; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 24px; margin: 26px 0; }
.stat { padding: 26px; text-align: center; }
.stat-num { display: block; font-family: var(--font-head); font-size: 38px; color: var(--primary-dark); }
.stat-label { display: block; color: var(--muted); font-size: 14px; margin: 4px 0 12px; }
.stat-link { font-size: 14px; }
.stat-link.muted { color: var(--muted); pointer-events: none; }

/* ---- Pagination ---- */

.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 40px; }
.pagination a {
    min-width: 40px; padding: 8px 12px; text-align: center;
    border: 1px solid var(--border); border-radius: 8px; color: var(--ink); font-size: 14.5px;
}
.pagination a:hover { border-color: var(--primary); text-decoration: none; }
.pagination a.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---- Misc ---- */

.error-page { text-align: center; padding: 60px 0; }
.error-page h1 { font-size: 84px; color: var(--primary-dark); }

/* ---- Responsive ---- */

@media (max-width: 960px) {
    .card-grid.three, .card-grid.four { grid-template-columns: repeat(2, 1fr); }
    .stat-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
    .nav-toggle { display: block; }
    .main-nav {
        display: none;
        position: absolute; top: 100%; left: 0; right: 0;
        background: #fff; border-bottom: 1px solid var(--border);
        flex-direction: column; align-items: flex-start;
        padding: 18px 22px; gap: 14px;
        box-shadow: 0 12px 18px rgba(24,58,67,.08);
    }
    .main-nav.open { display: flex; }
    .card-grid.three, .card-grid.four { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 26px; }
    .form-row { grid-template-columns: 1fr; }
    .hero { padding: 68px 0 84px; }
    .section { padding: 54px 0; }
    .page-tools { flex-direction: column; align-items: flex-start; }
}

/* ---- Account area ---- */

.account-wrap { display: grid; grid-template-columns: 260px 1fr; gap: 28px; align-items: start; padding-top: 40px; padding-bottom: 72px; }
.account-user { padding: 24px 20px; text-align: center; }
.account-avatar { width: 84px; height: 84px; border-radius: 50%; object-fit: cover; margin: 0 auto 12px; }
.account-avatar-initials { display: grid; place-items: center; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; font-family: var(--font-head); font-size: 24px; font-weight: 700; }
.account-user strong { display: block; }
.account-user small { color: var(--muted); word-break: break-all; }
.account-menu { margin-top: 18px; padding: 10px; display: flex; flex-direction: column; }
.account-menu a { padding: 11px 14px; border-radius: 8px; color: var(--ink); font-size: 14.5px; }
.account-menu a:hover { background: var(--bg); text-decoration: none; }
.account-menu a.active { background: var(--primary-tint); color: var(--primary-dark); font-weight: 500; }
.account-main h1 { margin-bottom: 20px; }
.account-main .card { padding: 24px; }
.account-form { max-width: 640px; }
.h-sm { font-size: 20px; margin: 30px 0 14px; }
.muted { color: var(--muted); }

.plan-current { display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap; }
.plan-current h2 { font-size: 24px; margin: 8px 0 4px; }

.plan-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.plan-card { padding: 26px 22px; display: flex; flex-direction: column; gap: 8px; }
.plan-card.plan-featured { border-color: var(--primary); box-shadow: 0 6px 18px rgba(14, 159, 143, .15); }
.plan-card h3 { font-size: 19px; }
.plan-price { font-family: var(--font-head); font-size: 30px; color: var(--primary-dark); }
.plan-price small { font-size: 13px; color: var(--muted); font-family: var(--font-body); }
.plan-desc { color: var(--muted); font-size: 14px; flex-grow: 1; }
.plan-feats { list-style: none; margin: 4px 0 14px; font-size: 14px; }
.plan-feats li { padding: 4px 0 4px 22px; position: relative; }
.plan-feats li::before { content: "\2713"; position: absolute; left: 0; color: var(--primary); font-weight: 700; }
.plan-card .btn { margin-top: auto; align-self: flex-start; }
.plan-badge-current { margin-top: auto; align-self: flex-start; }

.plan-cards-sm { grid-template-columns: 1fr; gap: 10px; margin-bottom: 4px; }
.plan-pick { display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; cursor: pointer; box-shadow: none; }
.plan-pick:hover { border-color: var(--primary); }
.plan-pick input { margin-top: 5px; }
.plan-pick-body strong { display: block; }
.plan-pick-body small { color: var(--muted); display: block; }
.plan-price-sm { color: var(--primary-dark); font-weight: 500; font-size: 14px; }
.form-note { font-size: 13.5px; color: var(--muted); margin-top: 10px; }

.badge-pending { background: #fdf0d8; color: #8a5a12; }
.badge-paid { background: #e2f5ec; color: #17643a; }
.badge-cancelled { background: #fdecea; color: #8f2a20; }
.badge-level-0 { background: #eef1f3; color: #5b6a74; }
.badge-level-1 { background: #e3eefb; color: #27548f; }
.badge-level-2 { background: #fdf0d8; color: #8a5a12; }

.locked-card { text-align: center; padding: 46px 30px; margin-top: 30px; }
.lock-icon { font-size: 40px; margin-bottom: 10px; }
.locked-plans { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin: 22px 0; }
.locked-plan { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 22px; font-size: 14.5px; }
.locked-plan strong { display: block; color: var(--primary-dark); }
.locked-card .btn { margin: 4px 6px 0; }

.form-card-wide { max-width: 560px; }

.upload-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
.upload-row input[type="file"] { max-width: 320px; padding: 6px 0; border: 0; }
.upload-status { font-size: 13px; color: var(--muted); }

/* ---- Admin tab bar ---- */

.admin-tabs { background: var(--primary-tint); border-bottom: 1px solid var(--border); }
.admin-tabs .container { display: flex; gap: 4px; flex-wrap: wrap; }
.admin-tabs a { padding: 12px 18px; font-size: 14.5px; font-weight: 500; color: var(--ink); border-bottom: 2px solid transparent; }
.admin-tabs a:hover { text-decoration: none; color: var(--primary-dark); }
.admin-tabs a.active { color: var(--primary-dark); border-bottom-color: var(--primary); }

@media (max-width: 960px) {
    .account-wrap { grid-template-columns: 1fr; }
    .plan-cards { grid-template-columns: 1fr; }
}