/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #f8f9fa;
    --surface: #fff;
    --border: #dee2e6;
    --text: #212529;
    --text-muted: #6c757d;
    --primary: #2d6a4f;
    --primary-hover: #1b4332;
    --danger: #c92a2a;
    --success: #2b8a3e;
    --radius: 6px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

/* Nav */
nav {
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    height: 3.5rem;
    gap: 2rem;
}

nav .nav-brand {
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff;
    text-decoration: none;
}

nav .nav-links { display: flex; gap: 1rem; margin-left: auto; }

nav .nav-links a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
}

nav .nav-links a:hover,
nav .nav-links a.active {
    color: #fff;
    background: rgba(255,255,255,0.15);
}

nav .nav-logout { opacity: 0.7; }

/* Main */
main {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

/* Page header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.page-header h1 { font-size: 1.5rem; }

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

th, td {
    padding: 0.6rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--bg);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-good { background: #d3f9d8; color: #2b8a3e; }
.badge-fair { background: #fff3bf; color: #855d00; }
.badge-poor { background: #ffe3e3; color: #c92a2a; }
.badge-dead { background: #e9ecef; color: #495057; }
.badge-stump { background: #e9ecef; color: #6c757d; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: var(--radius);
    font-size: 0.875rem;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover { background: var(--bg); }

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.btn-primary:hover { background: var(--primary-hover); }

.btn-sm { padding: 0.25rem 0.6rem; font-size: 0.8rem; }

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
    outline: 2px solid var(--primary);
    outline-offset: -1px;
    border-color: var(--primary);
}

.inline-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 1rem;
}

.inline-form input,
.inline-form select {
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
}

.filter-bar {
    margin-bottom: 1rem;
}

/* Detail grid */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.detail-section {
    background: var(--surface);
    padding: 1.25rem;
    border-radius: var(--radius);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.detail-section.full-width { grid-column: 1 / -1; }

.detail-section h2 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

dl { display: grid; grid-template-columns: auto 1fr; gap: 0.4rem 1rem; }
dt { font-weight: 600; font-size: 0.9rem; }
dd { font-size: 0.9rem; }

/* Login */
.login-container {
    max-width: 360px;
    margin: 6rem auto;
    padding: 2rem;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.login-container h1 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.login-container .btn { width: 100%; text-align: center; }

/* Alerts */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-error {
    background: #ffe3e3;
    color: var(--danger);
    border: 1px solid #ffc9c9;
}

/* Empty state */
.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 2rem;
    font-style: italic;
}

.text-muted { color: var(--text-muted); }