/* ==========================================================================
   Rang Mitra Painting — Painting Calculator + Modal system (calculator.css)
   Reusable modal shell (used by Calculator & Book Appointment popups) plus
   the multi-step calculator UI.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Generic modal shell (shared by calculator & appointment popups)
   -------------------------------------------------------------------------- */
.modal {
  position: fixed; inset: 0;
  z-index: 300;
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-4);
  background: rgba(31, 41, 55, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.modal.is-open { opacity: 1; visibility: visible; }

.modal__dialog {
  width: 100%;
  max-width: 560px;
  max-height: 92vh;
  overflow-y: auto;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transform: translateY(24px) scale(0.98);
  transition: transform var(--transition);
}
.modal.is-open .modal__dialog { transform: none; }

.modal__head {
  position: sticky; top: 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5) var(--space-4);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  z-index: 2;
}
.modal__title { font-size: 1.25rem; }
.modal__close {
  width: 38px; height: 38px; border-radius: 10px;
  display: grid; place-items: center; color: var(--color-text-muted);
  transition: background var(--transition);
}
.modal__close:hover { background: var(--color-bg); }
.modal__close svg { width: 22px; height: 22px; }
.modal__body { padding: var(--space-5); }

/* --------------------------------------------------------------------------
   "Standard rates" banner shown above the calculator
   -------------------------------------------------------------------------- */
.calc-note {
  display: flex; align-items: flex-start; gap: var(--space-3);
  background: rgba(79, 156, 249, 0.10);
  border: 1px solid rgba(79, 156, 249, 0.30);
  color: #1f4e79;
  border-radius: 12px;
  padding: var(--space-3) var(--space-4);
  font-size: 0.86rem;
  margin-bottom: var(--space-5);
}
.calc-note svg { width: 20px; height: 20px; flex: none; color: var(--color-secondary); }

/* --------------------------------------------------------------------------
   Calculator steps & fields
   -------------------------------------------------------------------------- */
.calc-step { margin-bottom: var(--space-5); }
.calc-step__label {
  display: block;
  font-weight: 700; font-size: 0.9rem;
  margin-bottom: var(--space-3);
}
.calc-step__label span { color: var(--color-primary); font-weight: 800; margin-right: 6px; }

/* Interior / Exterior big toggle */
.calc-type-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.calc-type {
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  padding: var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  font-weight: 600;
  transition: all var(--transition);
}
.calc-type svg { width: 28px; height: 28px; color: var(--color-text-muted); }
.calc-type small { font-weight: 500; color: var(--color-text-muted); font-size: 0.74rem; }
.calc-type:hover { border-color: var(--color-primary-light); }
.calc-type.is-active { border-color: var(--color-primary); background: rgba(108,76,241,.06); }
.calc-type.is-active svg { color: var(--color-primary); }

/* BHK pills */
.calc-bhk-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.calc-bhk {
  padding: 10px 18px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-border); background: var(--color-bg);
  font-weight: 600; color: var(--color-text-muted);
  transition: all var(--transition);
}
.calc-bhk:hover { border-color: var(--color-primary); color: var(--color-primary); }
.calc-bhk.is-active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; }

/* Area input with unit */
.calc-input-wrap { position: relative; }
.calc-input {
  width: 100%;
  padding: 14px 64px 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
  transition: border-color var(--transition), background var(--transition);
}
.calc-input:focus { outline: none; border-color: var(--color-primary); background: #fff; }
.calc-input-wrap__unit {
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  color: var(--color-text-muted); font-size: 0.85rem; font-weight: 600;
}
.calc-hint { font-size: 0.78rem; color: var(--color-text-muted); margin-top: var(--space-2); }

/* Paint category cards */
.calc-categories { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.calc-cat {
  text-align: left;
  padding: var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  transition: all var(--transition);
}
.calc-cat:hover { border-color: var(--color-primary-light); transform: translateY(-2px); }
.calc-cat.is-active { border-color: var(--color-primary); background: rgba(108,76,241,.05); }
.calc-cat__name { font-weight: 700; font-size: 0.92rem; display: flex; justify-content: space-between; gap: 6px; }
.calc-cat__rate { color: var(--color-accent); font-weight: 800; white-space: nowrap; }
.calc-cat__brands { font-size: 0.74rem; color: var(--color-text-muted); margin-top: 4px; line-height: 1.4; }

/* Included-by-default checklist */
.calc-included {
  display: flex; flex-wrap: wrap; gap: var(--space-2) var(--space-4);
  background: rgba(34,197,94,.07);
  border: 1px solid rgba(34,197,94,.25);
  border-radius: 12px;
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-5);
}
.calc-included li { display: flex; align-items: center; gap: 6px; font-size: 0.82rem; font-weight: 600; color: #15803d; }
.calc-included svg { width: 16px; height: 16px; }

/* Result block */
.calc-result {
  margin-top: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--gradient-brand);
  color: #fff;
  padding: var(--space-5);
  text-align: center;
}
.calc-result__label { font-size: 0.85rem; opacity: 0.9; }
.calc-result__value { font-size: 2rem; font-weight: 800; margin: 4px 0; }
.calc-result__meta { font-size: 0.82rem; opacity: 0.92; }
.calc-result__cta { margin-top: var(--space-4); }

/* Disabled steps before prerequisites are met */
.calc-step.is-disabled { opacity: 0.45; pointer-events: none; }