/* Tampilan seperti WhatsApp. Mobile-first, responsif. */
:root {
  --wa-header: #075E54;
  --wa-header-ikon: #AEBAC1;
  --wa-bg: #ECE5DD;
  --wa-bubble-masuk: #FFFFFF;
  --wa-bubble-keluar: #DCF8C6;
  --wa-hijau: #00A884;
  --wa-hijau-tua: #008069;
  --wa-teks: #111B21;
  --wa-muted: #667781;
  --wa-input-bg: #F0F2F5;
  --wa-centang: #53BDEB;
  --wa-garis: #E9EDEF;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
  background: #EFEAE2;
  color: var(--wa-teks);
}
button { font-family: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--wa-hijau); outline-offset: 1px; }

/* Bingkai aplikasi: penuh di HP, seperti WhatsApp Web di desktop. */
.wa-app {
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  max-width: 1000px;
  margin: 0 auto;
  background: var(--wa-bg);
  box-shadow: 0 0 0 1px rgba(0,0,0,.06), 0 2px 12px rgba(0,0,0,.12);
}

/* ===== Header ===== */
.wa-header {
  background: var(--wa-header);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  flex-shrink: 0;
  z-index: 5;
}
.wa-back {
  background: none; border: none; color: #fff;
  font-size: 1.4rem; line-height: 1; padding: 4px 6px 4px 0;
}
.wa-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: #8696A0;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.wa-identitas { flex: 1; min-width: 0; }
.wa-nama { font-size: 1.02rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.wa-status { font-size: .8rem; color: #D1E7DD; }
.wa-aksi { display: flex; align-items: center; gap: 2px; }
.wa-ikon {
  background: none; border: none; color: var(--wa-header-ikon);
  padding: 8px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.wa-ikon:hover { background: rgba(255,255,255,.08); color: #fff; }
.wa-ikon svg { display: block; }

/* ===== Area utama ===== */
.wa-main { flex: 1; min-height: 0; display: flex; flex-direction: column; }

/* ===== Form identitas ===== */
.wa-identitas-panel {
  flex: 1; min-height: 0; overflow-y: auto;
  display: flex; flex-direction: column; align-items: center;
  padding: 16px 16px calc(20px + env(safe-area-inset-bottom, 0px));
  background: var(--wa-bg);
  -webkit-overflow-scrolling: touch;
}
.wa-kartu-identitas {
  background: #fff; width: 100%; max-width: 420px;
  border-radius: 12px; padding: 20px 20px 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.15);
  text-align: center;
  margin: auto;
}
.wa-logo-bulat {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--wa-hijau);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 10px;
}
.wa-kartu-identitas h1 { margin: 0 0 4px; font-size: 1.2rem; font-weight: 600; }
.wa-sub { margin: 0 0 4px; color: var(--wa-muted); font-size: .92rem; }
.wa-kartu-identitas label {
  display: block; text-align: left;
  font-weight: 600; font-size: .9rem; margin-top: 12px;
}
.wa-kartu-identitas input {
  width: 100%; padding: 10px 12px; margin-top: 5px;
  border: 1px solid #D1D7DB; border-radius: 8px; font-size: 1rem;
  background: #fff; color: var(--wa-teks);
}
.wa-kartu-identitas input:focus { outline: 2px solid var(--wa-hijau); outline-offset: 0; border-color: var(--wa-hijau); }
.wa-btn {
  width: 100%; margin-top: 18px;
  background: var(--wa-hijau); color: #fff; border: none; border-radius: 8px;
  padding: 12px; font-size: 1rem; font-weight: 600;
}
.wa-btn:hover { background: var(--wa-hijau-tua); }
.wa-btn:active { transform: translateY(1px); }
.wa-btn-teks {
  background: none; border: none; color: var(--wa-hijau-tua);
  font-size: .9rem; font-weight: 600; margin-top: 12px; padding: 6px;
}
.wa-btn-teks:hover { text-decoration: underline; }
.wa-error {
  color: #B3261E; background: #FDECEA; border: 1px solid #F5C6C2;
  border-radius: 8px; padding: 9px 10px; font-size: .9rem; text-align: left;
}
.wa-catatan { color: var(--wa-muted); font-size: .8rem; margin: 14px 0 0; }

/* ===== Ruang chat ===== */
.wa-chat {
  flex: 1; min-height: 0;
  display: flex; flex-direction: column;
  background-color: var(--wa-bg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cg fill='none' stroke='%23000' stroke-opacity='0.045' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='22' cy='22' r='6'/%3E%3Cpath d='M62 14l4 9 9 1-6.5 6.5L70 38l-8-4.5L54 38l1.5-8.5L49 23l9-1z'/%3E%3Cpath d='M112 58q7-7 14 0-7 7-14 0z'/%3E%3Ccircle cx='32' cy='98' r='4'/%3E%3Cpath d='M74 104h16M82 96v16'/%3E%3Cpath d='M118 112c4-3 8 0 8 4s-4 7-8 4-4-5 0-8z'/%3E%3C/g%3E%3C/svg%3E");
}
.wa-pesan {
  flex: 1; overflow-y: auto;
  display: flex; flex-direction: column; gap: 3px;
  padding: 14px 16px 8px;
  scrollbar-width: thin;
}
.wa-chip-tanggal {
  align-self: center;
  background: #FFFFFF; color: var(--wa-muted);
  font-size: .78rem; font-weight: 500;
  padding: 6px 12px; border-radius: 8px;
  box-shadow: 0 1px 1px rgba(0,0,0,.12);
  margin: 6px 0 10px;
}
.wa-info {
  align-self: center;
  background: #FFF3C4; color: #4A3F00;
  font-size: .78rem; text-align: center;
  padding: 6px 12px; border-radius: 8px;
  box-shadow: 0 1px 1px rgba(0,0,0,.12);
  margin: 6px 0; max-width: 90%;
}
.wa-gelembung {
  position: relative;
  max-width: 78%;
  padding: 7px 9px 6px 10px;
  border-radius: 8px;
  line-height: 1.45; font-size: .95rem;
  white-space: pre-wrap; word-break: break-word;
  box-shadow: 0 1px 1px rgba(0,0,0,.13);
  margin-bottom: 3px;
}
.wa-gelembung.wa-masuk {
  align-self: flex-start;
  background: var(--wa-bubble-masuk);
  border-top-left-radius: 0;
}
.wa-gelembung.wa-keluar {
  align-self: flex-end;
  background: var(--wa-bubble-keluar);
  border-top-right-radius: 0;
}
.wa-isi { display: block; }
.wa-meta {
  float: right;
  display: inline-flex; align-items: center; gap: 3px;
  font-size: .68rem; color: var(--wa-muted);
  margin: 8px -2px -3px 8px;
  user-select: none;
}
.wa-centang { color: var(--wa-centang); font-size: .78rem; letter-spacing: -2px; }
.wa-mengetik { padding: 2px 16px 8px; }
.wa-bubble-mengetik { display: inline-flex; gap: 5px; padding: 12px 14px; }
.wa-bubble-mengetik span {
  width: 8px; height: 8px; border-radius: 50%; background: #8696A0;
  animation: wa-denyut 1.2s infinite;
}
.wa-bubble-mengetik span:nth-child(2) { animation-delay: .2s; }
.wa-bubble-mengetik span:nth-child(3) { animation-delay: .4s; }
@keyframes wa-denyut {
  0%, 60%, 100% { transform: translateY(0); opacity: .45; }
  30% { transform: translateY(-4px); opacity: 1; }
}

/* ===== Bar input ===== */
.wa-inputbar {
  background: var(--wa-input-bg);
  display: flex; align-items: flex-end; gap: 6px;
  padding: 8px 10px calc(8px + env(safe-area-inset-bottom, 0px));
  flex-shrink: 0;
}
.wa-kotak-input {
  flex: 1; min-width: 0;
  background: #fff; border-radius: 24px;
  display: flex; align-items: flex-end;
  padding: 2px 4px;
  box-shadow: 0 1px 1px rgba(0,0,0,.08);
}
#input-pesan {
  flex: 1; min-width: 0;
  border: none; outline: none; background: transparent;
  font-size: 1rem; color: var(--wa-teks);
  padding: 9px 8px;
  line-height: 1.35;
  max-height: 120px; overflow-y: auto;
  word-break: break-word; white-space: pre-wrap;
}
#input-pesan:empty:before {
  content: attr(data-placeholder);
  color: var(--wa-muted);
  pointer-events: none;
}
#input-pesan:focus { outline: none; }
.wa-ikon-input { color: #8696A0; padding: 7px; }
.wa-ikon-input:hover { background: #F0F2F5; color: var(--wa-teks); }
.wa-kirim {
  width: 46px; height: 46px; border: none; border-radius: 50%;
  background: var(--wa-hijau); color: #fff; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 1px 2px rgba(0,0,0,.2);
}
.wa-kirim:hover { background: var(--wa-hijau-tua); }
.wa-kirim:active { transform: scale(.96); }

/* ===== Menu lainnya (dropdown) ===== */
.wa-aksi { position: relative; }
.wa-menu-lainnya {
  position: absolute; top: calc(100% + 6px); right: 0;
  background: #fff; border-radius: 8px; min-width: 180px;
  box-shadow: 0 4px 16px rgba(0,0,0,.22);
  padding: 6px; z-index: 20;
}
.wa-menu-lainnya button {
  display: block; width: 100%; text-align: left;
  background: none; border: none; color: var(--wa-teks);
  font-size: .95rem; padding: 10px 12px; border-radius: 6px;
}
.wa-menu-lainnya button:hover { background: #F0F2F5; }

/* ===== Dialog modal (konfirmasi keluar / layar penuh) ===== */
.wa-modal {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(17, 27, 33, .55);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.wa-modal-kartu {
  background: #fff; width: 100%; max-width: 360px;
  border-radius: 12px; padding: 22px 20px 18px;
  box-shadow: 0 8px 32px rgba(0,0,0,.28);
  text-align: left;
}
.wa-modal-kartu h2 { margin: 0 0 8px; font-size: 1.15rem; font-weight: 600; }
.wa-modal-kartu p { margin: 0 0 16px; color: var(--wa-muted); font-size: .93rem; line-height: 1.5; }
.wa-modal-aksi { display: flex; gap: 10px; justify-content: flex-end; }
.wa-btn-modal {
  border: none; border-radius: 8px; padding: 10px 16px;
  font-size: .95rem; font-weight: 600;
}
.wa-btn-batal { background: #F0F2F5; color: var(--wa-teks); }
.wa-btn-batal:hover { background: #E4E6E9; }
.wa-btn-keluar { background: var(--wa-hijau); color: #fff; }
.wa-btn-keluar:hover { background: var(--wa-hijau-tua); }

/* ===== Overlay loading saat masuk chat ===== */
.wa-loading {
  position: fixed; inset: 0; z-index: 60;
  background: rgba(17, 27, 33, .55);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.wa-loading-kartu {
  background: #fff; border-radius: 12px; padding: 22px 28px;
  box-shadow: 0 8px 32px rgba(0,0,0,.28);
  text-align: center;
}
.wa-loading-titik { display: inline-flex; gap: 6px; margin-bottom: 10px; }
.wa-loading-titik span {
  width: 10px; height: 10px; border-radius: 50%; background: var(--wa-hijau);
  animation: wa-denyut 1.2s infinite;
}
.wa-loading-titik span:nth-child(2) { animation-delay: .2s; }
.wa-loading-titik span:nth-child(3) { animation-delay: .4s; }
.wa-loading-kartu p { margin: 0; color: var(--wa-teks); font-size: .95rem; }

/* ===== Desktop ===== */
@media (min-width: 720px) {
  body { background: #EFEAE2; }
  .wa-app { height: calc(100vh - 32px); height: calc(100dvh - 32px); margin: 16px auto; border-radius: 4px; overflow: hidden; }
  .wa-gelembung { max-width: 65%; }
  .wa-ikon { padding: 9px; }
}
@media (max-width: 480px) {
  .wa-header { padding: 8px 10px; }
  .wa-aksi .wa-ikon { padding: 6px; }
  .wa-gelembung { max-width: 85%; font-size: .93rem; }
  .wa-pesan { padding: 10px 10px 6px; }
}