/* style.css — how the page looks (colours, sizes, layout). */

/* Colours and sizes kept in one place so they're easy to change.
   "--name" defines a variable; var(--name) uses it. */
:root {
  --hour-height: 40px;      /* height of one hour row in the grid */
  --time-col-width: 60px;   /* width of the hours column on the left */
  --bg: #f6f7f9;
  --panel: #ffffff;
  --line: #e2e5ea;
  --line-strong: #c9ced6;
  --text: #1f2430;
  --muted: #6b7280;
  --today: #fff7d6;
  --outside: #eceef1;
  --accent: #3b6fd8;
}

* { box-sizing: border-box; }

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

/* ---- Top bar ---- */
.top-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  padding: 12px 68px 12px 20px; /* extra room on the right for the "?" button */
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: relative; /* lets the "?" button be pinned to this bar's corner */
}
.top-bar h1 { font-size: 20px; margin: 0; }
.zone-switch select { font-size: 14px; padding: 4px 6px; margin-left: 4px; }
.zone-status { margin: 0; color: var(--muted); font-size: 13px; }

/* Storage status label: colour depends on the mode. */
.storage-status {
  margin-left: auto; /* pushes this and the help button to the right */
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}
.status-live { background: #e3f5e8; color: #1a7f37; }
.status-test { background: #fff1d6; color: #9a5b00; }
.status-connecting { background: #eceef1; color: var(--muted); }
.status-error { background: #fde7e7; color: #c62828; }

/* The round "?" help button, pinned to the top-right corner. */
.help-button {
  position: absolute;
  top: 10px;
  right: 20px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  color: var(--accent);
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
}
.help-button:hover { background: var(--accent); color: #fff; }

/* ---- "plogenius in use / free" banner ---- */
/* Big on purpose: it's the first thing you should see. */
.presence-banner {
  margin: 14px 20px 0;
  padding: 18px 24px;
  border-radius: 12px;
  font-size: 34px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
}
.presence-in-use { background: #1a7f37; color: #fff; border: 2px solid #146c2e; }
.presence-free { background: #eef1f5; color: #3a4150; border: 2px solid var(--line-strong); }

/* ---- Add-booking form ---- */
.add-form {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin: 12px 20px 0;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 14px;
}
.add-form select { font-size: 14px; padding: 3px 4px; margin-left: 4px; }
.add-form button {
  font-size: 14px;
  padding: 5px 14px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
.next-day-hint { color: var(--muted); font-size: 13px; }
/* Small zone label like "CEST" next to times. */
.zone-tag { font-size: 12px; font-weight: 600; color: var(--muted); }
.zone-corner {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-align: center;
  align-self: end;
  padding-bottom: 8px;
}
.add-message { font-size: 13px; color: #1a7f37; }
.add-message.is-error { color: #c62828; font-weight: 600; }

/* ---- Week buttons ---- */
.week-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
}
.week-nav button {
  font-size: 14px;
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  border-radius: 6px;
  cursor: pointer;
}
.week-nav button:disabled { opacity: 0.4; cursor: default; }
.week-label { font-weight: 600; }
.tip { margin-left: auto; color: var(--muted); font-size: 12px; }

/* ---- Edit window ---- */
.edit-dialog {
  border: none;
  border-radius: 10px;
  padding: 18px 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  font-size: 14px;
  min-width: 360px;
}
.edit-dialog::backdrop { background: rgba(0, 0, 0, 0.35); } /* dims the page behind */
.edit-dialog h2 { margin: 0 0 12px; font-size: 18px; }
.edit-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  margin-bottom: 10px;
}
.edit-dialog select { font-size: 14px; padding: 3px 4px; margin-left: 4px; }
.edit-dialog button {
  font-size: 14px;
  padding: 5px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--panel);
  cursor: pointer;
}
.edit-dialog button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.edit-dialog button.danger { margin-left: auto; color: #c62828; border-color: #e3a5a5; }
.edit-buttons { display: flex; gap: 8px; }
.edit-dialog hr { border: none; border-top: 1px solid var(--line); margin: 14px 0 12px; }
.edit-dialog .add-message { min-height: 1em; margin: 0 0 10px; }

/* ---- Help window ---- */
.help-dialog { max-width: 560px; max-height: 85vh; line-height: 1.45; }
.help-dialog h3 { font-size: 15px; margin: 14px 0 4px; }
.help-dialog p, .help-dialog ul { margin: 0 0 6px; }
.help-dialog ul, .help-dialog ol { padding-left: 20px; margin: 0 0 6px; }
.help-dialog .edit-buttons { justify-content: flex-end; margin-top: 14px; }

/* ---- Planner grid ---- */
.planner {
  margin: 0 20px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

/* Header row and body both use the same columns:
   one narrow time column + 7 equal day columns. */
.planner-head,
.planner-body {
  display: grid;
  grid-template-columns: var(--time-col-width) repeat(7, 1fr);
}

/* The header row stays visible at the top while you scroll down. */
.planner-head {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--panel);
  border-bottom: 1px solid var(--line-strong);
  border-radius: 8px 8px 0 0;
}
.day-header {
  padding: 8px 6px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  border-left: 1px solid var(--line);
}

.hour-label {
  height: var(--hour-height);
  font-size: 11px;
  color: var(--muted);
  text-align: right;
  padding-right: 6px;
  transform: translateY(-7px); /* lines the label up with the hour line */
}
.hour-label:first-child { transform: none; }

/* position: relative lets us place booking blocks inside a day later. */
.day-column {
  position: relative;
  border-left: 1px solid var(--line);
}
.hour-cell {
  height: var(--hour-height);
  border-top: 1px solid var(--line);
}
.hour-cell:first-child { border-top: none; }

/* A booking block. "absolute" means it's placed by exact position inside
   its day column (top/height are set by app.js). */
.booking {
  position: absolute;
  left: 3px;
  right: 3px;
  z-index: 1;
  padding: 1px 5px;
  border-radius: 4px;
  color: #fff;
  font-size: 11px;
  line-height: 1.3;
  overflow: hidden;       /* text that doesn't fit is cut off (hover to see it all) */
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  cursor: grab;          /* the "hand" cursor hints that it can be dragged */
  user-select: none;     /* don't highlight text while dragging */
}
.booking:hover { filter: brightness(1.08); }

/* While dragging: the preview is see-through and on top. */
.booking.is-preview {
  opacity: 0.8;
  z-index: 3;
  cursor: grabbing;
  outline: 2px dashed #fff;
}
/* Can't drop here (clash or outside the window): red striped warning. */
.booking.is-preview.has-problem {
  outline: 3px solid #c62828;
  background-image: repeating-linear-gradient(45deg,
    rgba(0, 0, 0, 0.25) 0 6px, transparent 6px 12px);
}

/* The red "now" line across today's column (placed by app.js). */
.now-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: #e53935;
  z-index: 2;            /* above booking blocks */
  pointer-events: none;  /* clicks go through it to the booking underneath */
}
.now-line::before {      /* the small red dot at the left end */
  content: "";
  position: absolute;
  left: -5px;
  top: -4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e53935;
}

/* Today is highlighted; days outside the 14-day window are greyed out. */
.is-today { background: var(--today); }
.outside-window { background: var(--outside); color: var(--muted); }