/* ===== USE SAME DESIGN TOKENS ===== */

:root {
  --primary: #064db6;
  --primary-light: #0b5ed7;
  --primary-dark: #0f172a;
  --primary-soft: #e0e7ff;

  --danger: #dc2626;
  --danger-dark: #b91c1c;
  --danger-light: #fee2e2;

  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --background: #f8fafc;
  --card-bg: #ffffff;

  --success: #16a34a;
  --success-light: #dcfce7;
}

/* ===== PAGE ===== */

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

/* ===== MAIN CONTAINER ===== */

.calculator-form {
  max-width: 900px;
  margin: 40px auto;
  padding: 30px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

/* ===== HEADINGS ===== */

.calculator-form h2 {
  text-align: center;
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 30px;
}

/* ===== FORM LABELS ===== */

.calculator-form .form-label {
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

/* ===== INPUTS ===== */

.calculator-form input,
.calculator-form select,
.calculator-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #ffffff;
  font-size: 16px; /* fixes iOS zoom */
  transition: all 0.2s ease;
}

/* Focus (same feel as cart page) */
.calculator-form input:focus,
.calculator-form select:focus,
.calculator-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(6, 77, 182, 0.1);
  outline: none;
}

/* ===== GRID SPACING ===== */

.calculator-form .row {
  margin-bottom: 10px;
}

/* ===== BUTTON (MATCH CART STYLE) ===== */

.calculator-form button {
  border: none;
  border-radius: 12px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Primary CTA */
.calculator-form button[type="submit"] {
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 4px 12px rgba(6, 77, 182, 0.3);
}

.calculator-form button[type="submit"]:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(6, 77, 182, 0.4);
}

.calculator-form button[type="submit"]:active {
  transform: translateY(-1px);
}

/* Disabled state */
.calculator-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* ===== STATUS MESSAGES ===== */

#form-status {
  margin-top: 15px;
  font-size: 0.95rem;
  text-align: center;
}

#form-status .text-success {
  color: var(--success);
  background: var(--success-light);
  padding: 10px;
  border-radius: 8px;
}

#form-status .text-danger {
  color: var(--danger);
  background: var(--danger-light);
  padding: 10px;
  border-radius: 8px;
}

/* ===== AD BANNER ===== */

.ad-banner {
  text-align: center;
  font-weight: 700;
  padding: 12px;
  background: linear-gradient(135deg, var(--primary-soft), #f1f5ff);
  border-bottom: 1px solid var(--border);
  color: var(--primary-dark);
}

/* ===== MOBILE ===== */

@media (max-width: 768px) {
  .calculator-form {
    margin: 20px 10px;
    padding: 20px 15px;
    border-radius: 16px;
  }

  .calculator-form h2 {
    font-size: 1.5rem;
  }

  /* Stack inputs cleanly */
  .calculator-form .row > div {
    margin-bottom: 12px;
  }

  /* Full width inputs */
  .calculator-form input,
  .calculator-form select,
  .calculator-form textarea {
    font-size: 16px;
  }

  /* Button mobile consistency */
  .calculator-form button {
    width: 100%;
    min-height: 48px;
    padding: 14px 20px;
    font-size: 0.95rem;
  }
}

@media (max-width: 500px) {
  .calculator-form {
    padding: 15px 10px;
  }

  .calculator-form h2 {
    font-size: 1.3rem;
  }
}

@media (max-width: 400px) {
  .calculator-form {
    padding: 12px 8px;
    border-radius: 12px;
  }

  .calculator-form h2 {
    font-size: 1.2rem;
  }

  .calculator-form button {
    font-size: 0.85rem;
    padding: 12px;
  }
}