:root {
    --primary: #1e7d32;
    --primary-dark: #145a24;
    --bg: #f4f6f5;
    --card-bg: #ffffff;
    --text: #1c1c1c;
    --muted: #6b7280;
    --danger: #c62828;
    --taken: #e0e0e0;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.topbar {
    background: var(--primary);
    color: white;
}

.topbar-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.brand { font-weight: bold; font-size: 1.1rem; }

nav a {
    color: white;
    margin-left: 12px;
    text-decoration: none;
    font-size: 0.9rem;
}

nav a:hover { text-decoration: underline; }

.user-info { font-size: 0.9rem; margin-right: 8px; }

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 16px;
}

.card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

.auth-card {
    max-width: 380px;
    margin: 40px auto;
}

form label {
    display: block;
    margin-top: 14px;
    font-size: 1rem;
    color: var(--muted);
}

input[type="text"], input[type="email"], input[type="password"] {
    width: 100%;
    padding: 14px;
    margin-top: 6px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1.1rem;
}

button {
    cursor: pointer;
    border: none;
    border-radius: 8px;
    font-size: 1.05rem;
}

.auth-card button, form > button[type="submit"] {
    margin-top: 20px;
    background: var(--primary);
    color: white;
    padding: 14px 16px;
    width: 100%;
    font-weight: 600;
}

.contact-btn {
    display: block;
    text-align: center;
    margin-top: 18px;
    padding: 14px 16px;
    background: #eef2f0;
    color: var(--primary-dark);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
}
.contact-btn:hover { background: #dfe8e2; }

@media (max-width: 480px) {
    .auth-card {
        margin: 16px auto;
        padding: 20px;
    }
    .auth-card h1 { font-size: 1.4rem; }
    .brand { font-size: 1rem; }
}

.error { color: var(--danger); font-weight: 600; }
.muted { color: var(--muted); font-size: 0.9rem; }

.table-scroll { overflow-x: auto; }

table.schedule {
    border-collapse: collapse;
    width: 100%;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

table.schedule th, table.schedule td {
    border: 1px solid #e5e7eb;
    padding: 6px;
    text-align: center;
    font-size: 0.85rem;
}

table.schedule th { background: #eef2f0; }

.hour-label { font-weight: 600; background: #eef2f0; }

.slot {
    display: block;
    width: 100%;
    padding: 8px 4px;
    border-radius: 6px;
    font-size: 0.8rem;
}

.slot.free { background: #d9f0dd; color: var(--primary-dark); }
.slot.free:hover { background: var(--primary); color: white; }
.slot.mine { background: var(--primary); color: white; }
.slot.taken {
    display: inline-block;
    width: 100%;
    padding: 8px 4px;
    background: var(--taken);
    color: var(--muted);
    border-radius: 6px;
}

table.admin-table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 30px;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

table.admin-table th, table.admin-table td {
    border: 1px solid #e5e7eb;
    padding: 8px 10px;
    text-align: left;
    font-size: 0.9rem;
}

table.admin-table th { background: #eef2f0; }

button.danger {
    background: var(--danger);
    color: white;
    padding: 6px 10px;
}

.inline-form {
    display: flex;
    gap: 6px;
    margin-bottom: 6px;
}

.inline-form input {
    padding: 6px 8px;
    font-size: 0.85rem;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    width: 140px;
}

button.secondary {
    background: #e5e7eb;
    color: var(--text);
    padding: 6px 10px;
}