:root {
    --bg: #edf5fb;
    --surface: #ffffff;
    --surface-soft: #f7fbfe;
    --text: #10263d;
    --muted: #5d7288;
    --border: #d7e5f0;
    --primary: #0095da;
    --primary-dark: #0078b3;
    --primary-soft: rgba(0, 149, 218, 0.12);
    --accent: #a6ce38;
    --danger: #c2410c;
    --success: #15803d;
    --shadow: 0 18px 42px rgba(16, 38, 61, 0.10);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background:
    radial-gradient(circle at top left, rgba(0, 149, 218, 0.10), transparent 28%),
    radial-gradient(circle at top right, rgba(166, 206, 56, 0.11), transparent 24%),
    linear-gradient(180deg, #edf5fb 0%, #f9fcfe 100%); color: var(--text); font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: inherit; text-decoration: none; }
body { min-height: 100vh; }

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 290px 1fr;
}

.sidebar {
    background: linear-gradient(180deg, #081421 0%, #0c2740 100%);
    color: #eff6ff;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.brand, .sidebar-user, .sidebar-foot {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 18px;
    padding: 16px;
    backdrop-filter: blur(10px);
}

.brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
}
.brand-logo {
    width: min(180px, 100%);
    height: auto;
    max-height: 64px;
    object-fit: contain;
    display: block;
    background: transparent;
    border: 0;
    padding: 0;
    box-shadow: none;
}
.brand-copy { display: grid; gap: 6px; }
.brand strong, .sidebar-user strong, .sidebar-foot strong { display: block; }
.brand span, .sidebar-user span, .sidebar-foot small, .sidebar-user small { color: rgba(239,246,255,0.72); }

.menu { display: grid; gap: 8px; }
.menu a {
    padding: 12px 14px;
    border-radius: 14px;
    color: rgba(239,246,255,0.9);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
}
.menu a.active, .menu a:hover { background: rgba(0,149,218,0.18); border-color: rgba(0,149,218,0.34); }

.main-area {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.main-area--auth { grid-column: 1 / -1; }

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
}
.topbar h1 { margin: 0; font-size: 30px; }
.topbar p { margin: 6px 0 0; color: var(--muted); }
.topbar-actions { display: flex; gap: 10px; }

.content { display: grid; gap: 20px; }
.panel, .card, .hero-card, .stat-card, .note-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    box-shadow: var(--shadow);
}
.panel, .card, .hero-card { padding: 22px; }
.panel-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
    margin-bottom: 18px;
}
.panel-head h3, .form-card h3, .hero-card h2 { margin: 0; }
.panel-head span { color: var(--muted); }

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}
.stat-card {
    padding: 18px;
    display: grid;
    gap: 8px;
}
.stat-card span { color: var(--muted); font-size: 14px; }
.stat-card strong { font-size: 34px; }

.auth-grid {
    min-height: 100%;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 20px;
    align-items: center;
    padding: 20px 0;
}
.hero-card {
    background:
        radial-gradient(circle at top right, rgba(0,149,218,0.12), transparent 28%),
        radial-gradient(circle at bottom left, rgba(166,206,56,0.10), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #f8fcff 100%);
    overflow: hidden;
}
.eyebrow {
    display: inline-block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--primary);
    margin-bottom: 12px;
    font-weight: 800;
}
.hero-card p { color: var(--muted); max-width: 56ch; }
.hero-logo, .form-logo {
    display: block;
    max-width: 100%;
}
.hero-logo {
    width: min(320px, 100%);
    height: auto;
    max-height: 110px;
    object-fit: contain;
    margin-bottom: 18px;
}
.form-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 6px;
}
.form-logo {
    width: min(180px, 100%);
    height: auto;
    max-height: 60px;
    object-fit: contain;
    background: transparent;
    border: 0;
    padding: 0;
}
.form-brand h3 { margin: 0; }
.feature-list { margin: 18px 0 0; padding-left: 18px; color: var(--text); line-height: 1.6; }

.stack, .form-grid { display: grid; gap: 14px; }
.form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
label { display: grid; gap: 7px; }
label span { font-weight: 600; font-size: 14px; }
input, textarea {
    width: 100%;
    padding: 13px 14px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    font: inherit;
}
input:focus, textarea:focus {
    outline: none;
    border-color: rgba(0,149,218,0.45);
    box-shadow: 0 0 0 4px rgba(0,149,218,0.10);
}
input:disabled { opacity: 0.78; background: #eef3f8; }
textarea { resize: vertical; min-height: 120px; }

.form-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 16px;
    border: 1px solid transparent;
    border-radius: 14px;
    cursor: pointer;
    font-weight: 700;
    font: inherit;
    transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--primary), #007ec1); color: #fff; box-shadow: 0 12px 24px rgba(0, 149, 218, 0.18); }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-dark), #006ea8); }
.btn-secondary { background: rgba(0, 149, 218, 0.08); color: #006ea8; border-color: rgba(0, 149, 218, 0.18); }
.btn-sm { padding: 8px 12px; border-radius: 12px; font-size: 14px; }
.btn-block { width: 100%; }

.alert {
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: #fff;
}
.alert-success { border-color: rgba(21, 128, 61, 0.28); background: rgba(21, 128, 61, 0.06); }
.alert-error { border-color: rgba(194, 65, 12, 0.28); background: rgba(194, 65, 12, 0.06); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.muted { color: var(--muted); }

.detail-grid { display: grid; grid-template-columns: 1fr 0.9fr; gap: 20px; }
.detail-list { display: grid; gap: 14px; margin: 0; }
.detail-list div { padding: 14px; background: var(--surface-soft); border: 1px solid var(--border); border-radius: 16px; }
.detail-list dt { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.detail-list dd { margin: 0; font-weight: 600; }
.note-box { padding: 16px; margin-top: 18px; background: #f8fbfd; }
.note-box p { margin: 8px 0 0; color: var(--muted); }

@media (max-width: 1100px) {
    .app-shell, .auth-grid, .detail-grid, .stats-grid, .form-grid { grid-template-columns: 1fr; }
    .sidebar { display: none; }
    .main-area { padding: 18px; }
}

@media (max-width: 640px) {
    .topbar { flex-direction: column; }
    .topbar-actions { width: 100%; }
    .btn { width: 100%; }
}