:root {
    --bg: #0b1220;
    --panel: #111a2b;
    --panel-2: #17233a;
    --line: #2b3a58;
    --text: #eaf1ff;
    --muted: #9fb0cf;
    --brand: #4da3ff;
    --brand-2: #86c5ff;
    --success: #19c37d;
    --warn: #ffb648;
    --danger: #ff6b6b;
    --paper: #ffffff;
    --paper-text: #162033;
    --paper-muted: #5c6b86;
    --paper-line: #dde5f2;
    --shadow: 0 18px 50px rgba(8, 18, 38, 0.18);
    --radius-xl: 24px;
    --radius-lg: 18px;
    --radius-md: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background:
        radial-gradient(circle at top right, rgba(77, 163, 255, 0.18), transparent 20%),
        linear-gradient(180deg, #08101d, #0d1626 45%, #0f1a2e);
    color: var(--text);
}

a { color: inherit; text-decoration: none; }
.container {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: 28px 0 40px;
}

.hero {
    background: linear-gradient(145deg, rgba(23,35,58,.96), rgba(12,20,36,.96));
    border: 1px solid rgba(134,197,255,.14);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    padding: 28px;
    position: relative;
    overflow: hidden;
}
.hero::after {
    content: "";
    position: absolute;
    inset: auto -40px -40px auto;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(77,163,255,.20), transparent 65%);
    pointer-events: none;
}
.hero-top {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: flex-start;
    flex-wrap: wrap;
}
.kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(77,163,255,.12);
    border: 1px solid rgba(134,197,255,.18);
    color: var(--brand-2);
    font-size: 13px;
    letter-spacing: .04em;
    text-transform: uppercase;
    font-weight: 700;
}
.hero h1 {
    margin: 14px 0 10px;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.05;
}
.hero p {
    margin: 0;
    max-width: 760px;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.6;
}
.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 18px;
}
.btn, button, input[type="submit"] {
    appearance: none;
    border: none;
    cursor: pointer;
    border-radius: 14px;
    padding: 14px 18px;
    font-weight: 700;
    transition: .2s ease;
}
.btn-primary, input[type="submit"] {
    background: linear-gradient(135deg, var(--brand), #2f79ff);
    color: #fff;
    box-shadow: 0 10px 25px rgba(77,163,255,.26);
}
.btn-secondary, .btn {
    background: rgba(255,255,255,.04);
    color: var(--text);
    border: 1px solid rgba(255,255,255,.10);
}
.btn:hover, button:hover, input[type="submit"]:hover { transform: translateY(-1px); }

.grid {
    display: grid;
    gap: 20px;
    margin-top: 24px;
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.card {
    background: linear-gradient(145deg, rgba(17,26,43,.96), rgba(11,18,32,.96));
    border: 1px solid rgba(255,255,255,.08);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 22px;
}
.card h2, .card h3 {
    margin: 0 0 16px;
    line-height: 1.2;
}
.card p { color: var(--muted); }
.label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--muted);
    font-weight: 700;
    margin-bottom: 8px;
}
.stat-value {
    font-size: clamp(1.5rem, 3vw, 2.3rem);
    font-weight: 800;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .06em;
}
.badge-success { background: rgba(25,195,125,.15); color: #8ff1c6; border: 1px solid rgba(25,195,125,.25); }
.badge-warn { background: rgba(255,182,72,.15); color: #ffd89a; border: 1px solid rgba(255,182,72,.25); }
.badge-danger { background: rgba(255,107,107,.15); color: #ffbbbb; border: 1px solid rgba(255,107,107,.25); }
.badge-brand { background: rgba(77,163,255,.15); color: var(--brand-2); border: 1px solid rgba(77,163,255,.25); }

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 16px;
}
.form-grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
    font-size: 13px;
    color: var(--muted);
    font-weight: 700;
}
input[type="text"], input[type="email"], input[type="number"], input[type="date"], textarea, select {
    width: 100%;
    border-radius: 14px;
    border: 1px solid rgba(255,255,255,.10);
    background: rgba(255,255,255,.03);
    color: var(--text);
    padding: 14px 15px;
    outline: none;
    font: inherit;
}
textarea { min-height: 120px; resize: vertical; }
input::placeholder, textarea::placeholder { color: #7f91b3; }
input:focus, textarea:focus, select:focus {
    border-color: rgba(77,163,255,.60);
    box-shadow: 0 0 0 4px rgba(77,163,255,.12);
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid rgba(255,255,255,.08);
    border-radius: 16px;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,.06);
}
th { color: var(--brand-2); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
td { color: var(--text); }

.alert {
    padding: 14px 16px;
    border-radius: 14px;
    margin-bottom: 16px;
    font-weight: 600;
}
.alert-success { background: rgba(25,195,125,.12); border: 1px solid rgba(25,195,125,.25); color: #b3ffd8; }
.alert-error { background: rgba(255,107,107,.12); border: 1px solid rgba(255,107,107,.25); color: #ffd0d0; }

.certificate-page {
    background: linear-gradient(180deg, #f9fbff, #eef4ff);
    color: var(--paper-text);
    min-height: 100vh;
    padding: 32px 16px;
}
.certificate-shell {
    width: min(1100px, 100%);
    margin: 0 auto;
    background: var(--paper);
    border-radius: 30px;
    box-shadow: 0 18px 55px rgba(17, 35, 70, 0.12);
    overflow: hidden;
    border: 1px solid #e7eef9;
}
.certificate-header {
    padding: 34px 34px 24px;
    background:
        radial-gradient(circle at top right, rgba(77,163,255,.24), transparent 22%),
        linear-gradient(135deg, #10274b, #173f73 58%, #21589e);
    color: white;
}
.certificate-header h1 {
    margin: 14px 0 6px;
    font-size: clamp(2rem, 3vw, 2.8rem);
}
.certificate-header p { margin: 0; color: rgba(255,255,255,.82); line-height: 1.6; }
.certificate-meta {
    margin-top: 22px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0,1fr));
    gap: 14px;
}
.meta-box {
    padding: 16px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 18px;
}
.meta-box .meta-label {
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: .08em;
    color: rgba(255,255,255,.72);
    font-weight: 700;
}
.meta-box .meta-value {
    margin-top: 8px;
    font-size: 1.1rem;
    font-weight: 800;
}
.certificate-body { padding: 30px 34px 36px; }
.paper-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(12, minmax(0,1fr));
}
.paper-card {
    background: #f8fbff;
    border: 1px solid var(--paper-line);
    border-radius: 22px;
    padding: 22px;
}
.paper-card h3 {
    margin: 0 0 14px;
    color: #193764;
    font-size: 1.15rem;
}
.paper-card p, .paper-card li { color: var(--paper-muted); }
.span-4 { grid-column: span 4; }
.span-6 { grid-column: span 6; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }
.metric {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--paper-line);
}
.metric:last-child { border-bottom: 0; padding-bottom: 0; }
.metric-label { color: var(--paper-muted); font-weight: 700; }
.metric-value { color: var(--paper-text); font-weight: 800; text-align: right; }
.soh-ring {
    width: 180px;
    aspect-ratio: 1;
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin: 8px auto 20px;
    background: conic-gradient(#2f79ff calc(var(--soh) * 1%), #d9e6fb 0);
    padding: 14px;
}
.soh-ring-inner {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: white;
    display: grid;
    place-items: center;
    text-align: center;
}
.soh-ring-inner strong { display: block; font-size: 2rem; color: #173f73; }
.soh-ring-inner span { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--paper-muted); font-weight: 700; }
.grade-pill {
    display: inline-flex;
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .06em;
    font-size: 12px;
}
.grade-excellent { background: #e7fbf1; color: #138c59; }
.grade-good { background: #e9f3ff; color: #1b67d8; }
.grade-fair { background: #fff5e7; color: #c57c10; }
.grade-attention_required { background: #fff0f0; color: #d43b3b; }
.sign-off {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 18px;
}
.signature-line {
    margin-top: 32px;
    border-top: 2px solid #c8d6ef;
    padding-top: 10px;
    color: var(--paper-muted);
    font-weight: 700;
}
.search-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.search-row input { flex: 1 1 320px; }
.footer-note {
    color: var(--muted);
    font-size: 13px;
    margin-top: 18px;
}

@media (max-width: 900px) {
    .grid-2, .grid-3, .grid-4, .form-grid, .form-grid-3, .certificate-meta, .sign-off { grid-template-columns: 1fr; }
    .paper-grid { grid-template-columns: 1fr; }
    .span-4, .span-6, .span-8, .span-12 { grid-column: span 1; }
}

@media print {
    body, .certificate-page { background: white !important; }
    .no-print { display: none !important; }
    .certificate-shell {
        box-shadow: none;
        border: 0;
        border-radius: 0;
        width: 100%;
    }
    .certificate-header { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}