:root {
    --bg: #fafaf9;
    --surface: #ffffff;
    --border: #e8e8e5;
    --border-subtle: #f0f0ed;
    --text: #1a1a18;
    --text-2: #6b6b67;
    --text-3: #a8a8a4;
    --accent: #dc2f2f;
    --accent-soft: #fdf2f2;
    --accent-border: #f5c5c5;
    --radius: 8px;
    --radius-sm: 5px;
}

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.nav {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    height: 52px;
    display: flex;
    align-items: center;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand {
    display: flex; align-items: center; gap: 8px;
    text-decoration: none; color: var(--text);
    font-weight: 600; font-size: 14px;
    letter-spacing: -0.01em; margin-right: auto;
}
.nav-brand-icon {
    width: 26px; height: 26px; background: var(--text);
    border-radius: 6px; display: flex; align-items: center;
    justify-content: center; font-size: 13px;
}
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-link {
    text-decoration: none; color: var(--text-2);
    font-size: 13.5px; font-weight: 450;
    padding: 5px 10px; border-radius: var(--radius-sm);
    transition: color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--text); background: var(--border-subtle); }
.nav-link.primary { background: var(--text); color: white; font-weight: 500; margin-left: 6px; }
.nav-link.primary:hover { background: #333; }
.nav-divider { width: 1px; height: 16px; background: var(--border); margin: 0 6px; }

.page { max-width: 900px; margin: 0 auto; padding: 40px 24px 80px; }
.page-sm { max-width: 440px; margin: 0 auto; padding: 64px 24px 80px; }

h1 { font-size: 22px; font-weight: 600; letter-spacing: -0.025em; line-height: 1.3; }
h2 { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }

.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px; border-radius: var(--radius-sm);
    font-size: 13.5px; font-weight: 500; font-family: inherit;
    cursor: pointer; border: 1px solid transparent;
    text-decoration: none; transition: all 0.15s; white-space: nowrap;
}
.btn-primary { background: var(--text); color: white; border-color: var(--text); }
.btn-primary:hover { background: #333; border-color: #333; }
.btn-ghost { background: transparent; color: var(--text-2); border-color: var(--border); }
.btn-ghost:hover { background: var(--border-subtle); color: var(--text); }
.btn-danger { background: transparent; color: var(--accent); border-color: var(--accent-border); font-size: 12.5px; padding: 4px 10px; }
.btn-danger:hover { background: var(--accent-soft); }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-label { font-size: 13px; font-weight: 500; color: var(--text-2); letter-spacing: 0.01em; }
.form-input {
    padding: 8px 11px; border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-size: 14.5px;
    font-family: inherit; color: var(--text); background: var(--surface);
    outline: none; transition: border-color 0.15s, box-shadow 0.15s;
    width: 100%;
}
.form-input:focus { border-color: var(--text); box-shadow: 0 0 0 3px rgba(26,26,24,0.06); }
.form-input::placeholder { color: var(--text-3); }
textarea.form-input { resize: vertical; min-height: 100px; line-height: 1.6; }
.form-hint { font-size: 12px; color: var(--text-3); }

.alert { padding: 10px 14px; border-radius: var(--radius-sm); font-size: 13.5px; line-height: 1.5; border: 1px solid; }
.alert-error { background: var(--accent-soft); color: #991b1b; border-color: var(--accent-border); }
.alert-success { background: #f0fdf4; color: #14532d; border-color: #bbf7d0; }

.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 999px; font-size: 11.5px; font-weight: 500; font-family: 'DM Mono', monospace; }
.badge-red { background: var(--accent-soft); color: var(--accent); border: 1px solid var(--accent-border); }
.badge-gray { background: var(--border-subtle); color: var(--text-3); border: 1px solid var(--border); }
.badge-blue { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }

.table-wrap { overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
th {
    text-align: left; font-size: 11.5px; font-weight: 500;
    color: var(--text-3); letter-spacing: 0.06em; text-transform: uppercase;
    padding: 10px 16px; border-bottom: 1px solid var(--border); background: var(--bg);
}
td { padding: 12px 16px; border-bottom: 1px solid var(--border-subtle); font-size: 14px; vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg); }
.td-mono { font-family: 'DM Mono', monospace; font-size: 12.5px; color: var(--text-2); }

.text-muted { color: var(--text-2); }
.text-xs { font-size: 12px; }
.text-sm { font-size: 13.5px; }

.search-wrap { display: flex; gap: 8px; margin-bottom: 24px; }
.search-input {
    flex: 1; padding: 9px 13px; border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-size: 14px; font-family: inherit;
    color: var(--text); background: var(--surface); outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.search-input:focus { border-color: var(--text); box-shadow: 0 0 0 3px rgba(26,26,24,0.06); }
.search-input::placeholder { color: var(--text-3); }

.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }

.empty { padding: 56px 24px; text-align: center; }
.empty-icon { font-size: 28px; margin-bottom: 12px; opacity: 0.4; }
.empty p { color: var(--text-2); font-size: 14px; }
.empty a { color: var(--text); font-weight: 500; }

.section-header { padding: 14px 16px; border-bottom: 1px solid var(--border); }

.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 32px; }
.stat-card { padding: 20px; }
.stat-value { font-size: 28px; font-weight: 600; letter-spacing: -0.04em; line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: 12.5px; color: var(--text-3); }

.back-link {
    display: inline-flex; align-items: center; gap: 5px;
    font-size: 13px; color: var(--text-2); text-decoration: none;
    margin-bottom: 24px; transition: color 0.15s;
}
.back-link:hover { color: var(--text); }

.company-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 20px; padding: 20px; }
.meta-label { font-size: 11px; font-weight: 500; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.07em; margin-bottom: 3px; }
.meta-value { font-size: 14px; font-family: 'DM Mono', monospace; color: var(--text); }
.meta-value.empty-val { color: var(--text-3); font-family: inherit; font-style: italic; }

.report-card { padding: 16px 20px; border-bottom: 1px solid var(--border-subtle); }
.report-card:last-child { border-bottom: none; }
.report-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.report-meta { display: flex; align-items: center; gap: 10px; }
.report-hotel { font-size: 13.5px; font-weight: 500; }
.report-date { font-size: 12px; color: var(--text-3); font-family: 'DM Mono', monospace; }
.report-body { font-size: 14px; color: var(--text-2); line-height: 1.65; }

.auth-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; }
.auth-logo-icon { width: 32px; height: 32px; background: var(--text); border-radius: 7px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.auth-logo-text { font-size: 15px; font-weight: 600; letter-spacing: -0.02em; }
.auth-subtitle { font-size: 13px; color: var(--text-2); margin-top: 2px; }

@media (max-width: 640px) {
    .stats-grid { grid-template-columns: 1fr; }
    .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
    .nav { padding: 0 16px; }
    .page { padding: 24px 16px 60px; }
}