:root {
  --bg:          var(--tg-theme-bg-color,          #1c1c1e);
  --bg2:         var(--tg-theme-secondary-bg-color, #2c2c2e);
  --text:        var(--tg-theme-text-color,         #ffffff);
  --hint:        var(--tg-theme-hint-color,         #8e8e93);
  --accent:      var(--tg-theme-button-color,       #0a84ff);
  --accent-text: var(--tg-theme-button-text-color,  #ffffff);
  --green: #34c759;
  --red:   #ff453a;
  --radius: 14px;
  --radius-sm: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ---- Screens ---- */
.screen { display: none; padding: 16px; max-width: 480px; margin: 0 auto; }
.screen.active { display: block; }

/* ---- Header ---- */
.header { text-align: center; margin-bottom: 20px; padding-top: 8px; }
.header h1 { font-size: 24px; font-weight: 700; }
.sheet-name { color: var(--hint); font-size: 13px; margin-top: 4px; }

/* ---- Summary bar ---- */
.summary-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 14px 12px;
}
.summary-item { flex: 1; text-align: center; }
.summary-label { display: block; font-size: 11px; color: var(--hint); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.5px; }
.summary-value { font-size: 15px; font-weight: 600; }
.summary-value.green { color: var(--green); }
.summary-value.red   { color: var(--red); }

/* ---- Action grid ---- */
.action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.action-btn {
  background: var(--bg2);
  border: none;
  border-radius: var(--radius);
  padding: 20px 12px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: opacity .15s, transform .1s;
}
.action-btn:active { opacity: .7; transform: scale(.97); }
.action-icon { font-size: 28px; }

/* ---- Screen header ---- */
.screen-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-top: 4px;
}
.screen-header h2 { font-size: 18px; font-weight: 600; }
.back-btn {
  background: var(--bg2);
  border: none;
  border-radius: 50%;
  width: 36px; height: 36px;
  font-size: 18px;
  color: var(--text);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: opacity .15s;
}
.back-btn:active { opacity: .6; }

/* ---- Form ---- */
.form { display: flex; flex-direction: column; gap: 12px; }
.field-label { font-size: 12px; font-weight: 500; color: var(--hint); text-transform: uppercase; letter-spacing: 0.5px; }

.input {
  width: 100%;
  background: var(--bg2);
  border: none;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  font-size: 16px;
  outline: none;
  -webkit-appearance: none;
}
.input::placeholder { color: var(--hint); }
.input:focus { box-shadow: 0 0 0 2px var(--accent); }

.date-row { display: flex; gap: 8px; }
.date-row .input { flex: 1; }
.today-btn {
  background: var(--bg2);
  border: none;
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 14px;
  padding: 0 14px;
  cursor: pointer;
  white-space: nowrap;
}

/* ---- Chip grid ---- */
.chip-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  background: var(--bg2);
  border: 2px solid transparent;
  border-radius: 20px;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  transition: border-color .15s, background .15s;
  white-space: nowrap;
}
.chip:active { opacity: .7; }
.chip.selected {
  border-color: var(--accent);
  background: rgba(10, 132, 255, 0.15);
}

/* ---- Toggle row ---- */
.toggle-row { display: flex; gap: 8px; }
.toggle-btn {
  flex: 1;
  background: var(--bg2);
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--hint);
  padding: 10px;
  font-size: 14px;
  cursor: pointer;
  transition: all .15s;
}
.toggle-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(10, 132, 255, 0.1);
}

/* ---- Submit buttons ---- */
.submit-btn {
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: var(--accent-text);
  font-size: 16px;
  font-weight: 600;
  padding: 15px;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  margin-top: 4px;
}
.submit-btn:active { opacity: .8; transform: scale(.98); }
.submit-btn.secondary {
  background: var(--bg2);
  color: var(--accent);
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #333;
  color: #fff;
  padding: 12px 20px;
  border-radius: 20px;
  font-size: 14px;
  pointer-events: none;
  opacity: 0;
  transition: opacity .3s, transform .3s;
  max-width: 90vw;
  text-align: center;
  z-index: 999;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.error { background: var(--red); }
.toast.success { background: #1c5e2e; }