/* Small, dependency-free stylesheet — no build step, no Tailwind/Vite.
   Deliberate choice: a shared-hosting PHP app shouldn't need Node just to
   render its own pages. See docs/ARCHITECTURE.md. */

:root {
    --ink: #1f2430;
    --muted: #667085;
    --border: #e2e5ea;
    --bg: #f7f8fa;
    --card: #ffffff;
    --brand: #2c5f8a;
    --brand-dark: #204a6d;
    --ok: #1c7d4d;
    --warn: #b45309;
    --danger: #b3261e;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.5;
}

a { color: var(--brand); }

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Top nav */
.nav {
    background: var(--card);
    border-bottom: 1px solid var(--border);
}
.nav .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: .9rem;
    padding-bottom: .9rem;
}
.nav .brand { font-weight: 700; color: var(--ink); text-decoration: none; }
.nav .links { display: flex; gap: 1.25rem; align-items: center; }
.nav .links a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav .links a.active, .nav .links a:hover { color: var(--brand); }

main { padding: 2rem 0 4rem; }

/* Guest (auth) layout */
.guest-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
}
.guest-card { width: 100%; max-width: 400px; }
.guest-card h1 { font-size: 1.25rem; margin: 0 0 1.25rem; }

/* Forms */
label { display: block; font-size: .875rem; font-weight: 600; margin-bottom: .3rem; }
input[type=text], input[type=email], input[type=password], input[type=date],
input[type=number], input[type=url], select, textarea {
    width: 100%;
    padding: .55rem .7rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: .95rem;
    background: #fff;
    color: var(--ink);
}
textarea { min-height: 5rem; }
.field { margin-bottom: 1rem; }
.field-error { color: var(--danger); font-size: .825rem; margin-top: .3rem; }
.hint { color: var(--muted); font-size: .825rem; margin-top: .3rem; }
.checkbox-row { display: flex; align-items: center; gap: .5rem; font-weight: 400; }

button, .btn {
    display: inline-block;
    background: var(--brand);
    color: #fff;
    border: none;
    padding: .6rem 1.1rem;
    border-radius: 6px;
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
button:hover, .btn:hover { background: var(--brand-dark); }
.btn-secondary { background: #fff; color: var(--ink); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-danger { background: #fff; color: var(--danger); border: 1px solid var(--danger); }
.btn-danger:hover { background: #fdf1f0; }
.btn-sm { padding: .35rem .7rem; font-size: .85rem; }

/* Alerts */
.alert { padding: .75rem 1rem; border-radius: 8px; margin-bottom: 1.25rem; font-size: .9rem; }
.alert-status { background: #eaf6ee; color: var(--ok); border: 1px solid #c9e9d4; }
.alert-error { background: #fdf1f0; color: var(--danger); border: 1px solid #f5cfcb; }

/* Cards / grid */
.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.stat-label { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 1.5rem; font-weight: 700; margin: .2rem 0; }

/* Hours bar */
.hours-bar-track {
    background: #eef0f3;
    border-radius: 999px;
    height: 12px;
    overflow: hidden;
    margin: .5rem 0 .35rem;
}
.hours-bar-fill { height: 100%; background: var(--brand); }
.hours-bar-fill.is-over { background: var(--warn); }

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: .65rem .85rem; border-bottom: 1px solid var(--border); font-size: .9rem; }
th { background: var(--bg); color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
tr:last-child td { border-bottom: none; }

.badge { display: inline-block; padding: .15rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; }
.badge-upcoming { background: #e7eef8; color: var(--brand-dark); }
.badge-completed { background: #eaf6ee; color: var(--ok); }
.badge-cancelled { background: #f2f2f3; color: var(--muted); }

.section { margin-bottom: 2rem; }
.section h2 { font-size: 1.05rem; margin: 0 0 .75rem; }
.empty { color: var(--muted); font-size: .9rem; padding: 1rem; }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.toolbar form { display: flex; gap: .5rem; align-items: center; }