* { box-sizing: border-box; }

:root {
  --blue: #1a73e8;
  --blue-dark: #1558b0;
  --blue-light: #eaf2fe;
  --ink: #14181f;
  --muted: #667085;
  --border: #dde3ec;
  --bg: #eef2f7;
  --radius: 16px;
  --success: #1e7e34;
  --success-bg: #e6f4ea;
  --error: #b3261e;
  --error-bg: #fdecea;
}

* { font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; }

body {
  margin: 0;
  padding: 0 0 48px;
  background: linear-gradient(180deg, #e8f0fe 0%, #eef2f7 260px);
  color: var(--ink);
}

.app-container {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.app-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 36px 16px 28px;
}

.brand-logo {
  height: 40px;
  width: auto;
}

.main-title {
  font-size: 24px;
  font-weight: 700;
  margin: 4px 0 0;
  color: var(--ink);
}

.coverage-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--muted);
  box-shadow: 0 1px 3px rgba(20, 40, 80, 0.06);
}

.coverage-pill strong { color: var(--ink); }

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2fb344;
  box-shadow: 0 0 0 3px rgba(47, 179, 68, 0.18);
  flex-shrink: 0;
}

/* Wrapper / Card */
.form-wrapper {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(20, 40, 80, 0.08);
  padding: 8px 0 0;
  overflow: hidden;
}

/* Alerts */
.alert {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 24px;
  margin: 24px 24px 0;
  border-radius: 12px;
}
.alert-icon { width: 22px; height: 22px; flex-shrink: 0; margin-top: 1px; }
.alert h4 { margin: 0 0 2px; font-size: 14px; }
.alert p { margin: 0; font-size: 13px; line-height: 1.5; }
.alert-success { background: var(--success-bg); color: var(--success); }
.alert-error { background: var(--error-bg); color: var(--error); }

/* Sections */
.form-section {
  padding: 28px 24px;
  border-bottom: 1px solid #f0f2f6;
}
.form-footer-action {
  padding: 24px;
}

.section-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 20px;
}

.section-num {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-light);
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 700;
  border-radius: 9px;
}

.section-title {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 3px;
  color: var(--ink);
}

.section-desc {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
  line-height: 1.4;
}

/* Form fields */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.col-span-2 { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; }
.form-group label {
  font-size: 13px;
  font-weight: 600;
  margin: 0 0 6px;
  color: var(--ink);
}
.req { color: var(--error); }

input[type=text], input[type=tel], textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  background: #fbfcfe;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
input[type=text]:focus, input[type=tel]:focus, textarea:focus {
  outline: none;
  border-color: var(--blue);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.15);
}
textarea { resize: vertical; }

.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }

/* Checkbox rows */
.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.checkbox-container input[type=checkbox] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--blue);
  flex-shrink: 0;
  cursor: pointer;
}
.checkbox-container label {
  font-size: 14px;
  font-weight: 400;
  color: var(--ink);
  cursor: pointer;
  line-height: 1.45;
}

.consent-box {
  padding: 14px 16px;
  background: #f8fafc;
  border: 1px solid #eef1f5;
  border-radius: 12px;
  margin-bottom: 20px;
}

/* Collapsible alamat penagihan */
.collapsible-content {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, opacity 0.2s ease;
}

/* Paket cards */
.paket-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.paket-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 16px;
  border: 1.5px solid var(--border);
  border-radius: 13px;
  cursor: pointer;
  background: #fbfcfe;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s, transform 0.1s;
}
.paket-card:hover { border-color: #b7cef6; }
.paket-card input[type=radio] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.paket-badge {
  position: absolute;
  top: -9px;
  right: 12px;
  background: var(--blue);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 999px;
}

.paket-speed {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.paket-price {
  font-size: 14px;
  font-weight: 600;
  color: var(--blue-dark);
}
.paket-price span { font-size: 11px; font-weight: 400; color: var(--muted); }

.paket-desc {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
  line-height: 1.4;
}

.paket-card.active {
  border-color: var(--blue);
  background: var(--blue-light);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.12);
}

/* Submit button */
.btn-primary {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
}
.btn-primary:hover { background: var(--blue-dark); }
.btn-primary:active { transform: translateY(1px); }
.btn-arrow {
  width: 18px;
  height: 18px;
  transition: transform 0.15s;
}
.btn-primary:hover .btn-arrow { transform: translateX(3px); }

/* Footer */
.app-copyright {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  padding: 24px 16px 0;
}

.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

@media (max-width: 480px) {
  .app-header { padding: 28px 12px 22px; }
  .main-title { font-size: 20px; }
  .form-section, .form-footer-action { padding: 22px 18px; }
  .grid-2, .paket-grid { grid-template-columns: 1fr; }
  .col-span-2 { grid-column: auto; }
}