:root{
  --wa-green:#00a884;
  --wa-green-dark:#008069;
  --wa-panel:#ffffff;
  --wa-rail:#f0f2f5;
  --wa-bg:#efeae2;
  --wa-text:#111b21;
  --wa-muted:#667781;
  --wa-line:#e9edef;
  --wa-hover:#f5f6f6;
  --wa-selected:#f0f2f5;
  --wa-mine:#d9fdd3;
  --wa-danger:#d93025;
  --wa-sidebar:clamp(390px,35vw,520px);
}
*{box-sizing:border-box}
html,body{margin:0;width:100%;min-height:100%;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--wa-text);background:#fff}
button,input,textarea,select{font:inherit}button{color:inherit}a{color:inherit;text-decoration:none}
body.wa-only-body{overflow:hidden}

/* Login, registrasi, dan form lama tetap kompatibel */
.auth-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:#f0f2f5}
.auth-card{width:min(420px,100%);background:#fff;border-radius:16px;padding:26px;box-shadow:0 8px 30px #00000012}
.auth-card-wide{width:min(620px,100%)}
.auth-logo{width:58px;height:58px;border-radius:50%;background:var(--wa-green-dark);display:grid;place-items:center;color:#fff;font-weight:800;font-size:26px}
.auth-card h1{margin:16px 0 5px;font-size:24px}.auth-card p,.auth-card small{color:var(--wa-muted)}
label{display:block;font-weight:650;margin:15px 0 6px}
.auth-card input,.auth-card select{width:100%;padding:13px 14px;border:1px solid #d8dcdf;border-radius:10px;background:#fff;outline:none}
.auth-card input:focus,.auth-card select:focus{border-color:var(--wa-green);box-shadow:0 0 0 2px #00a88418}
.auth-card button{width:100%;padding:13px;border:0;border-radius:10px;background:var(--wa-green-dark);color:#fff;font-weight:750;margin:18px 0 9px;cursor:pointer}
.alert{background:#ffebe9;color:#b42318;padding:10px 12px;border-radius:9px;margin-top:14px}
.success-alert{background:#e7f8f2;color:#06705d;padding:10px 12px;border-radius:9px;margin-top:14px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.form-grid .full{grid-column:1/-1}
.auth-note{margin-top:14px;padding:11px;border-radius:9px;background:#f0fdf9;color:#0b6b5a;font-size:12px;line-height:1.5}
.auth-switch{text-align:center;margin:8px 0 12px;color:var(--wa-muted);font-size:13px}
.auth-switch a,.back-link{color:var(--wa-green-dark);font-weight:700;text-decoration:none}
.auth-link-button{display:block;text-align:center;margin-top:18px;padding:13px;border-radius:10px;background:var(--wa-green-dark);color:#fff;text-decoration:none;font-weight:750}
.back-link{display:inline-block;margin-bottom:10px}

/* WA shell */
.app{height:100dvh;background:#fff;display:grid;grid-template-rows:64px 1fr 64px;overflow:hidden}
.topbar{min-height:64px;background:#f0f2f5;padding:8px 12px;display:flex;align-items:center;justify-content:space-between;gap:10px;border-bottom:1px solid var(--wa-line)}
.header-person{display:flex;align-items:center;gap:10px;min-width:0}
.header-avatar{width:40px!important;height:40px!important;background:#dfe5e7!important;color:#54656f!important}
.brand-title{min-width:0;display:flex;flex-direction:column}
.brand-title strong{font-size:16px;line-height:1.15;font-weight:650}
.brand-title small{font-size:11px;color:var(--wa-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:48vw;margin-top:3px}
.top-actions{display:flex;align-items:center;gap:4px}
.icon-btn{border:0;cursor:pointer;display:grid;place-items:center;background:transparent}
.header-action{width:40px;height:40px;border-radius:50%;font-size:18px;color:#54656f}
.header-action:hover{background:#e4e7e9}
.content{min-height:0;overflow:auto;background:#fff}
.page{display:none;min-height:100%;position:relative}.page.active{display:block}
.mini-success{margin:8px 12px;padding:9px 11px;border-radius:9px;background:#d9fdd3;color:#06705d;font-size:12px}

/* Search dan filter */
.conversation-tools{background:#fff;padding:8px 12px 6px;position:sticky;top:0;z-index:5}
.conversation-search{height:42px;margin:0;display:flex;align-items:center;gap:12px;background:#f0f2f5;border-radius:10px;padding:0 14px;font-weight:400;color:#54656f}
.conversation-search i{font-size:14px}
.conversation-search input{min-width:0;flex:1;border:0;outline:0;background:transparent;color:var(--wa-text);font-size:13px;padding:0}
.conversation-search input::placeholder{color:#667781}
.filter-row{display:flex;gap:7px;padding:10px 0 2px;overflow:auto}
.filter-chip{border:1px solid #d8dcdf;background:#fff;border-radius:999px;padding:6px 13px;font-size:12px;color:#54656f;cursor:pointer;white-space:nowrap}
.filter-chip.active{background:#e7fce8;border-color:#b9e8c2;color:#087b5e}

/* Lists */
.list{display:flex;flex-direction:column}
.list-item{display:flex;align-items:center;gap:12px;padding:10px 12px;background:#fff;border:0;border-bottom:1px solid var(--wa-line);cursor:pointer;text-decoration:none;min-height:72px}
.list-item:hover{background:var(--wa-hover)}.list-item.selected{background:var(--wa-selected)}
.avatar{width:49px;height:49px;border-radius:50%;background:#dfe5e7;color:#54656f;display:grid;place-items:center;font-weight:800;flex:0 0 auto;overflow:hidden}
.list-main{flex:1;min-width:0}
.list-main strong{display:block;font-size:15px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.list-main span{display:block;margin-top:3px;color:var(--wa-muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.list-time{font-size:11px;color:var(--wa-muted);align-self:flex-start;padding-top:3px;white-space:nowrap}
.badge{display:inline-grid;place-items:center;float:right;margin-top:7px;background:#25d366;color:#fff;border-radius:999px;min-width:18px;height:18px;padding:0 5px;font-size:10px;font-weight:800}
.empty{text-align:center;color:var(--wa-muted);padding:44px 12px}.empty.compact{padding:34px 12px;font-size:13px}
.notification.unread{background:#f0fbf8}
.notification .type{font-size:10px;text-transform:uppercase;color:var(--wa-green-dark);font-weight:800;letter-spacing:.03em}
.child-avatar{background:#e7f8f2;color:var(--wa-green-dark)}
.chevron{font-size:28px;font-weight:300;color:#b2b9bd;padding-left:6px}
.panel-title{min-height:78px;padding:16px 15px 12px;display:flex;align-items:flex-start;justify-content:space-between;gap:10px;border-bottom:1px solid var(--wa-line);background:#fff}
.panel-title h2{font-size:20px;margin:0}.panel-title p{font-size:12px;color:var(--wa-muted);margin:4px 0 0;line-height:1.4}
.text-action{border:0;background:transparent;color:var(--wa-green-dark);text-decoration:none;font-weight:700;font-size:12px;padding:5px;cursor:pointer;white-space:nowrap}

/* Profil */
.profile-simple{text-align:center;padding:26px 16px 22px;border-bottom:8px solid #f0f2f5}
.profile-avatar{width:88px;height:88px;margin:0 auto 12px;background:#dfe5e7;color:#54656f;font-size:30px}
.profile-simple h2{margin:0;font-size:20px}.profile-simple p{margin:4px 0 0;color:var(--wa-muted);font-size:13px}
.settings-list{background:#fff}
.setting-row{width:100%;min-height:70px;display:grid;grid-template-columns:42px 1fr auto;align-items:center;gap:10px;padding:10px 15px;border:0;border-bottom:1px solid var(--wa-line);text-decoration:none;background:#fff;text-align:left;cursor:pointer}
.setting-row:hover{background:var(--wa-hover)}
.setting-row>span:nth-child(2){min-width:0}
.setting-row strong,.setting-row small{display:block}.setting-row strong{font-size:14px}.setting-row small{font-size:12px;color:var(--wa-muted);margin-top:3px;line-height:1.35}
.setting-row>b{font-size:24px;font-weight:300;color:#aeb6ba}.setting-icon{width:38px;height:38px;border-radius:50%;background:#f0f2f5;display:grid;place-items:center;color:#54656f}
.danger-row strong{color:var(--wa-danger)}.no-link{cursor:default}.setting-button{font:inherit;color:inherit}

/* Mobile nav */
.bottomnav{border-top:1px solid var(--wa-line);background:#fff;display:grid;grid-template-columns:repeat(4,1fr);padding:4px 3px max(5px,env(safe-area-inset-bottom));z-index:9}
.navbtn{position:relative;border:0;background:#fff;color:#667781;padding:5px 3px 4px;cursor:pointer;font-size:10px}
.navbtn>i{position:relative;font-style:normal;font-size:19px;display:block;line-height:25px}
.navbtn>span{display:block}.navbtn.active{color:var(--wa-green-dark);font-weight:700}
.profile-mini{width:27px;height:27px;margin:auto;border-radius:50%;background:#dfe5e7;display:grid!important;place-items:center;color:#54656f;font-size:12px!important;font-style:normal!important}
.dot{position:absolute;top:-4px;right:-10px;display:grid;place-items:center;background:#25d366;color:#fff;border:2px solid #fff;border-radius:999px;min-width:18px;height:18px;padding:0 3px;font-size:9px;font-style:normal}
.fab-chat{position:fixed;right:18px;bottom:82px;width:54px;height:54px;border-radius:16px;border:0;background:var(--wa-green-dark);color:#fff;font-size:21px;box-shadow:0 5px 16px #0000002b;cursor:pointer;z-index:8}

/* Chat */
.chat-screen{position:fixed;inset:0;background:var(--wa-bg);z-index:20;display:none;grid-template-rows:64px 1fr 64px}
.chat-screen.open{display:grid}.chat-placeholder{display:none}
.chat-head{min-height:64px;background:#f0f2f5;padding:7px 12px;display:flex;align-items:center;gap:5px;border-bottom:1px solid #dfe3e5}
.chat-back,.chat-action{width:40px;height:40px;border-radius:50%;background:transparent;color:#54656f;font-size:17px}
.chat-back:hover,.chat-action:hover{background:#e4e7e9}.chat-avatar{width:40px;height:40px;background:#dfe5e7}
.chat-peer{flex:1;min-width:0;margin-left:5px}.chat-peer strong,.chat-peer small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-peer strong{font-size:14px;font-weight:600}.chat-peer small{font-size:11px;color:#667781;margin-top:2px}
.messages{overflow:auto;padding:14px 7.5%;background-color:#efeae2;background-image:
radial-gradient(circle at 20px 20px,#fff5 1px,transparent 1.5px),
radial-gradient(circle at 55px 60px,#fff4 1px,transparent 1.5px);
background-size:80px 80px}
.msg{max-width:min(72%,620px);margin:4px 0;padding:7px 9px 5px;border-radius:8px;background:#fff;box-shadow:0 1px 1px #00000018;word-wrap:break-word;font-size:14px;line-height:1.35}
.msg.mine{margin-left:auto;background:var(--wa-mine)}.msg .sender{font-size:11px;font-weight:750;color:var(--wa-green-dark);margin-bottom:2px}
.msg .time{font-size:9px;color:#667781;text-align:right;margin-top:3px}.msg img.media{max-width:100%;max-height:420px;border-radius:6px}.msg audio,.msg video{max-width:100%}
.msg .file{display:inline-block;padding:9px;background:#ffffff80;border-radius:6px;text-decoration:none}.sticker-msg{background:transparent!important;box-shadow:none!important}.sticker-msg img{max-width:135px;max-height:135px}
.composer{min-height:64px;background:#f0f2f5;padding:8px 11px;display:flex;align-items:flex-end;gap:7px;border-top:1px solid #dfe3e5}
.composer textarea{flex:1;resize:none;min-height:44px;max-height:115px;padding:11px 14px;border:0;outline:0;border-radius:10px;background:#fff;color:var(--wa-text)}
.round{border:0;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;cursor:pointer;flex:0 0 auto}
.round.subtle{background:transparent;color:#54656f;font-size:18px}.round.subtle:hover{background:#e4e7e9}
.round.send{background:var(--wa-green-dark);color:#fff}.recording{background:#ffe7e7!important;color:#d93025!important;animation:pulse 1s infinite}
@keyframes pulse{50%{transform:scale(.92)}}

/* Placeholder desktop */
.placeholder-inner{max-width:520px;text-align:center;color:#54656f;padding:40px}
.placeholder-logo{width:94px;height:94px;border-radius:50%;display:grid;place-items:center;margin:0 auto 24px;background:#e9edef;color:#8696a0;font-size:38px}
.placeholder-inner h2{font-weight:300;font-size:30px;color:#41525d;margin:0 0 14px}.placeholder-inner p{font-size:14px;line-height:1.6;margin:0 0 24px}.placeholder-inner small{font-size:12px;color:#8696a0}

/* Modal, picker, call */
.picker{display:none;position:fixed;left:12px;right:12px;bottom:75px;max-height:330px;background:#fff;border-radius:14px;box-shadow:0 8px 28px #0003;z-index:40;padding:12px}.picker.open{display:block}
.sheet-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:5px 0 10px}.sheet-head h3{margin:0;font-size:16px}.sticker-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;max-height:250px;overflow:auto}.sticker-grid button{border:0;background:#fff;border-radius:10px;padding:8px;cursor:pointer}.sticker-grid img{width:100%;height:72px;object-fit:contain}
.contact-modal,.call-modal{position:fixed;inset:0;background:#0007;display:none;align-items:flex-end;justify-content:center;z-index:50}.contact-modal.open,.call-modal.open{display:flex}
.sheet{width:min(520px,100%);max-height:82vh;background:#fff;border-radius:18px 18px 0 0;padding:14px;overflow:auto}.search{width:100%;border:0;outline:0;background:#f0f2f5;border-radius:9px;padding:12px;margin-bottom:8px}
.call-box{width:min(430px,94%);background:#111b21;color:#fff;border-radius:18px;padding:18px;text-align:center}.call-video{width:100%;max-height:330px;background:#000;border-radius:12px;margin-top:10px}.call-actions{display:flex;justify-content:center;gap:16px;margin-top:16px}.call-actions button{border:0;width:54px;height:54px;border-radius:50%;color:#fff;font-size:18px}.accept{background:#21c063}.reject{background:#e53935}

/* Pure WhatsApp-like desktop */
@media(min-width:900px){
  html,body{height:100%;overflow:hidden;background:#fff}
  .app{position:fixed;inset:0 auto 0 0;width:var(--wa-sidebar);height:100vh;max-width:none;display:grid;grid-template-columns:64px 1fr;grid-template-rows:64px 1fr;box-shadow:none;border-right:1px solid #dfe3e5;z-index:10}
  .topbar{grid-column:2;grid-row:1;height:64px;padding:8px 12px;background:#f0f2f5}
  .content{grid-column:2;grid-row:2;overflow:auto;border-top:1px solid var(--wa-line)}
  .bottomnav{grid-column:1;grid-row:1/3;display:flex;flex-direction:column;align-items:stretch;padding:8px 5px;background:#f0f2f5;border:0;border-right:1px solid #d8dcdf}
  .navbtn{width:52px;height:52px;min-height:52px;margin:1px auto;border-radius:12px;background:transparent;color:#54656f;display:grid;place-items:center;padding:0}
  .navbtn:hover{background:#e4e7e9}.navbtn.active{background:#dfe3e5;color:#111b21}.navbtn>i{font-size:20px;line-height:1}.navbtn>span{display:none}
  .navbtn.profile-nav{margin-top:auto}.profile-mini{width:32px;height:32px;background:#cfd6d9}.dot{top:-10px;right:-12px;border-color:#f0f2f5}
  .fab-chat{display:none}
  .chat-screen{display:grid;position:fixed;left:var(--wa-sidebar);right:0;top:0;bottom:0;inset:0 0 0 var(--wa-sidebar);z-index:8;border-radius:0;box-shadow:none;grid-template-rows:64px 1fr 64px;background:#efeae2}
  .chat-screen:not(.open) .chat-head,.chat-screen:not(.open) .messages,.chat-screen:not(.open) .composer{display:none}
  .chat-placeholder{grid-row:1/-1;display:flex;align-items:center;justify-content:center;background:#f7f9fa;border-bottom:6px solid var(--wa-green)}
  .chat-screen.open .chat-placeholder{display:none}
  .chat-back{display:none}.chat-head{height:64px}.messages{padding-left:7%;padding-right:7%}.composer{height:64px;align-items:center}
  .picker{left:calc(var(--wa-sidebar) + 18px);right:18px;bottom:76px;width:min(430px,calc(100vw - var(--wa-sidebar) - 36px))}
  .contact-modal,.call-modal{align-items:center}.sheet,.call-box{border-radius:16px}.contact-modal{padding-left:var(--wa-sidebar)}
}

@media(max-width:899px){
  .chat-placeholder{display:none!important}
}
@media(max-width:560px){
  .form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.auth-card{padding:22px}.brand-title small{max-width:42vw}.fab-chat{right:16px}.msg{max-width:84%}
}

/* Subpages tanpa Panel Orang Tua, tetap terasa seperti aplikasi pesan */
.wa-subpage-body{margin:0;background:#f0f2f5;min-height:100vh;color:var(--wa-text)}
.wa-subpage{min-height:100vh;background:#fff;max-width:1040px;margin:0 auto;box-shadow:0 0 30px #0000000d}
.wa-subpage-head{height:64px;background:#f0f2f5;border-bottom:1px solid var(--wa-line);display:flex;align-items:center;gap:12px;padding:0 18px;position:sticky;top:0;z-index:10}
.wa-back{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:#54656f}.wa-back:hover{background:#e4e7e9}
.wa-subpage-title{min-width:0;flex:1}.wa-subpage-title strong,.wa-subpage-title small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.wa-subpage-title strong{font-size:15px}.wa-subpage-title small{font-size:11px;color:var(--wa-muted);margin-top:2px}
.wa-subpage-content{padding:18px;max-width:820px;margin:0 auto}
.wa-child-hero{display:flex;align-items:center;gap:14px;padding:18px;background:#fff;border:1px solid var(--wa-line);border-radius:14px}
.wa-child-hero .avatar{width:58px;height:58px;background:#e7f8f2;color:var(--wa-green-dark);font-size:20px}
.wa-child-hero h1{margin:0;font-size:20px}.wa-child-hero p{margin:4px 0 0;font-size:12px;color:var(--wa-muted)}
.wa-tabs{display:flex;gap:7px;overflow:auto;padding:14px 0}.wa-tabs a{white-space:nowrap;padding:8px 13px;border-radius:999px;border:1px solid #d8dcdf;background:#fff;color:#54656f;font-size:12px}.wa-tabs a.active{background:#e7fce8;border-color:#b9e8c2;color:#087b5e;font-weight:700}
.wa-stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:12px}.wa-stat{background:#fff;border:1px solid var(--wa-line);border-radius:12px;padding:14px}.wa-stat b{display:block;font-size:24px;color:var(--wa-green-dark)}.wa-stat span{font-size:11px;color:var(--wa-muted)}
.wa-data-card{background:#fff;border:1px solid var(--wa-line);border-radius:12px;padding:13px;margin-bottom:8px}.wa-data-card h3{font-size:14px;margin:0 0 5px}.wa-meta{font-size:11px;color:var(--wa-muted)}.wa-status{display:inline-flex;margin-top:8px;padding:5px 9px;border-radius:999px;background:#e7fce8;color:#087b5e;font-size:10px;font-weight:750}
.wa-section-title{font-size:14px;margin:16px 0 8px}
.wa-form-card{background:#fff;border:1px solid var(--wa-line);border-radius:14px;padding:18px}.wa-form-card h1{font-size:20px;margin:0}.wa-form-card>p{font-size:12px;color:var(--wa-muted);line-height:1.5}
.wa-form label{font-size:12px;margin:14px 0 6px}.wa-form input,.wa-form select{width:100%;padding:12px 13px;border:1px solid #d8dcdf;border-radius:10px;outline:0;background:#fff}.wa-form input:focus,.wa-form select:focus{border-color:var(--wa-green);box-shadow:0 0 0 3px #00a88418}
.wa-form button{margin-top:18px;border:0;border-radius:10px;padding:12px 16px;background:var(--wa-green-dark);color:#fff;font-weight:750;cursor:pointer}
.wa-info{padding:11px 12px;border-radius:10px;background:#f0fbf8;color:#35675d;font-size:11px;line-height:1.5;margin-top:14px}
@media(max-width:620px){.wa-subpage-content{padding:12px}.wa-stat-grid{gap:7px}.wa-stat{padding:11px}.wa-child-hero{padding:14px}.wa-child-hero h1{font-size:18px}}


/* =========================================================
   V12 - RESPONSIVE MOBILE / TABLET
   WhatsApp-only parent portal
   ========================================================= */
:root{
  --app-height:100dvh;
  --mobile-top:58px;
  --mobile-bottom:62px;
}

/* Prevent horizontal overflow on every device */
html,body,.app,.content,.page,.chat-screen{max-width:100%}
img,video,audio{max-width:100%}

/* Tablet/mobile: one-screen flow just like WhatsApp mobile */
@media (max-width:899px){
  html,body{width:100%;height:100%;overflow:hidden;background:#fff;overscroll-behavior:none}
  body.wa-only-body{height:var(--app-height,100dvh);min-height:0;overflow:hidden}

  .app{
    width:100%;
    height:var(--app-height,100dvh);
    min-height:0;
    display:grid;
    grid-template-columns:1fr;
    grid-template-rows:var(--mobile-top) minmax(0,1fr) var(--mobile-bottom);
    position:fixed;
    inset:0;
    overflow:hidden;
    background:#fff;
  }
  .topbar{
    grid-row:1;
    min-height:var(--mobile-top);
    height:var(--mobile-top);
    padding:7px 10px;
    position:relative;
    z-index:12;
  }
  .header-avatar{width:39px!important;height:39px!important;font-size:13px}
  .brand-title strong{font-size:15px}
  .brand-title small{font-size:10px;max-width:44vw}
  .header-action{width:42px;height:42px;font-size:18px}

  .content{
    grid-row:2;
    min-height:0;
    height:auto;
    overflow-y:auto;
    overflow-x:hidden;
    -webkit-overflow-scrolling:touch;
    overscroll-behavior-y:contain;
  }
  .page{min-height:100%;padding-bottom:0}

  .bottomnav{
    grid-row:3;
    min-height:var(--mobile-bottom);
    height:var(--mobile-bottom);
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    align-items:start;
    padding:3px 3px max(5px,env(safe-area-inset-bottom));
    position:relative;
    z-index:13;
    border-top:1px solid var(--wa-line);
  }
  .navbtn{
    min-width:0;
    min-height:52px;
    padding:4px 2px 2px;
    border-radius:0;
    touch-action:manipulation;
  }
  .navbtn>i{font-size:19px;line-height:26px}
  .navbtn>span{font-size:10px;line-height:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .profile-mini{width:27px;height:27px}

  .conversation-tools{padding:7px 10px 5px;top:0}
  .conversation-search{height:40px;border-radius:10px;padding:0 12px}
  .filter-row{padding:8px 0 3px;gap:6px;scrollbar-width:none}
  .filter-row::-webkit-scrollbar{display:none}
  .filter-chip{min-height:34px;padding:7px 13px}

  .list-item{min-height:68px;padding:9px 11px;gap:11px}
  .avatar{width:46px;height:46px;font-size:13px}
  .list-main strong{font-size:14px}
  .list-main span{font-size:12px;margin-top:2px}
  .list-time{font-size:10px}
  .badge{min-width:18px;height:18px;font-size:9px}

  .fab-chat{
    display:grid;
    place-items:center;
    position:fixed;
    right:16px;
    bottom:calc(var(--mobile-bottom) + 14px + env(safe-area-inset-bottom));
    width:52px;
    height:52px;
    border-radius:16px;
    z-index:14;
    touch-action:manipulation;
  }

  /* Open conversation becomes the entire phone screen */
  .chat-screen{
    display:none;
    position:fixed;
    z-index:100;
    top:0;
    left:0;
    right:0;
    bottom:auto;
    width:100%;
    height:var(--app-height,100dvh);
    min-height:0;
    grid-template-columns:1fr;
    grid-template-rows:var(--mobile-top) minmax(0,1fr) auto;
    background:var(--wa-bg);
    overflow:hidden;
  }
  .chat-screen.open{display:grid}
  .chat-placeholder{display:none!important}
  .chat-head{
    grid-row:1;
    height:var(--mobile-top);
    min-height:var(--mobile-top);
    padding:6px 5px;
    gap:2px;
    padding-top:max(6px,env(safe-area-inset-top));
  }
  .chat-back{display:grid;width:40px;height:40px;flex:0 0 40px;font-size:18px}
  .chat-avatar{width:38px;height:38px;flex:0 0 38px}
  .chat-peer{margin-left:4px}
  .chat-peer strong{font-size:14px}
  .chat-peer small{font-size:10px}
  .chat-action{width:38px;height:38px;flex:0 0 38px;font-size:16px}

  .messages{
    grid-row:2;
    min-height:0;
    padding:10px 11px 12px;
    overflow-y:auto;
    overflow-x:hidden;
    -webkit-overflow-scrolling:touch;
    overscroll-behavior:contain;
    scroll-behavior:smooth;
  }
  .msg{max-width:86%;font-size:13.5px;line-height:1.35;padding:7px 8px 5px}
  .msg img.media{max-height:52vh;object-fit:contain}
  .sticker-msg img{max-width:120px;max-height:120px}

  .composer{
    grid-row:3;
    min-height:58px;
    height:auto;
    padding:7px 7px max(7px,env(safe-area-inset-bottom));
    gap:3px;
    align-items:flex-end;
    background:#f0f2f5;
  }
  .composer textarea{
    min-width:0;
    min-height:42px;
    max-height:112px;
    padding:10px 12px;
    font-size:14px;
    line-height:20px;
    border-radius:22px;
  }
  .round{width:40px;height:40px;flex:0 0 40px}
  .round.subtle{font-size:17px}
  .round.send{font-size:15px}

  /* Bottom sheets on phones */
  .picker{
    left:7px;
    right:7px;
    bottom:max(65px,calc(env(safe-area-inset-bottom) + 62px));
    width:auto;
    max-height:min(46vh,360px);
    border-radius:16px;
    padding:10px;
    z-index:120;
  }
  .sticker-grid{grid-template-columns:repeat(4,minmax(0,1fr));max-height:34vh}
  .sticker-grid img{height:64px}

  .contact-modal{
    align-items:stretch;
    justify-content:stretch;
    padding:0;
    background:#fff;
    z-index:130;
  }
  .contact-modal .sheet{
    width:100%;
    height:var(--app-height,100dvh);
    max-height:none;
    border-radius:0;
    padding:10px 11px max(10px,env(safe-area-inset-bottom));
    overflow:auto;
  }
  .contact-modal .sheet-head{
    position:sticky;
    top:0;
    z-index:2;
    background:#fff;
    padding:8px 0 12px;
  }
  .contact-modal .search{height:42px;position:sticky;top:54px;z-index:2}

  .call-modal{z-index:150;align-items:stretch;padding:0;background:#111b21}
  .call-box{
    width:100%;
    max-width:none;
    min-height:var(--app-height,100dvh);
    border-radius:0;
    padding:max(18px,env(safe-area-inset-top)) 14px max(18px,env(safe-area-inset-bottom));
    display:flex;
    flex-direction:column;
    justify-content:center;
  }
  .call-video{max-height:58vh;object-fit:cover}

  .panel-title{min-height:70px;padding:13px 13px 10px}
  .panel-title h2{font-size:18px}
  .panel-title p{font-size:11px;max-width:70vw}
  .text-action{min-height:36px;display:inline-flex;align-items:center;gap:5px}
  .profile-simple{padding:22px 14px 18px}
  .profile-avatar{width:78px;height:78px;font-size:26px}
  .setting-row{min-height:66px;padding:9px 13px}
}

/* Small phones: 320-420px */
@media (max-width:480px){
  :root{--mobile-top:56px;--mobile-bottom:60px}
  .topbar{padding-left:8px;padding-right:6px}
  .header-avatar{width:37px!important;height:37px!important}
  .brand-title small{max-width:35vw}
  .top-actions{gap:0}
  .header-action{width:38px;height:38px}
  .list-item{min-height:66px;padding-left:9px;padding-right:9px}
  .avatar{width:44px;height:44px}
  .conversation-tools{padding-left:8px;padding-right:8px}
  .filter-chip{padding-left:11px;padding-right:11px}
  .chat-head{padding-left:2px;padding-right:2px}
  .chat-back{width:36px;flex-basis:36px}
  .chat-action{width:36px;height:36px;flex-basis:36px}
  .chat-avatar{width:36px;height:36px;flex-basis:36px}
  .messages{padding-left:8px;padding-right:8px}
  .msg{max-width:89%;font-size:13px}
  .composer{padding-left:4px;padding-right:4px;gap:1px}
  .round{width:36px;height:40px;flex-basis:36px}
  .composer textarea{padding-left:11px;padding-right:11px}
  .sticker-grid{grid-template-columns:repeat(4,1fr)}
  .sticker-grid img{height:58px}
}

/* Very narrow phones: keep input usable by hiding one less-critical button */
@media (max-width:360px){
  #stickerBtn{display:none}
  .brand-title small{display:none}
  .chat-peer small{display:none}
  .msg{max-width:92%}
}

/* Landscape phone: maximize message area */
@media (max-width:899px) and (orientation:landscape) and (max-height:520px){
  :root{--mobile-top:50px;--mobile-bottom:52px}
  .topbar,.chat-head{padding-top:3px;padding-bottom:3px}
  .header-avatar,.chat-avatar{width:34px!important;height:34px!important;flex-basis:34px}
  .chat-action,.chat-back{height:36px}
  .composer{min-height:50px;padding-top:4px;padding-bottom:max(4px,env(safe-area-inset-bottom))}
  .composer textarea{min-height:38px;max-height:76px;padding-top:8px;padding-bottom:8px}
  .round{height:38px}
  .messages{padding-top:7px;padding-bottom:7px}
}

/* Tablet portrait: still single-pane, roomier list */
@media (min-width:600px) and (max-width:899px){
  .list-item{padding-left:18px;padding-right:18px}
  .conversation-tools{padding-left:18px;padding-right:18px}
  .messages{padding-left:8%;padding-right:8%}
  .msg{max-width:76%}
  .panel-title{padding-left:18px;padding-right:18px}
}

/* Responsive subpages */
@media (max-width:620px){
  .wa-subpage{width:100%;min-height:100dvh;box-shadow:none}
  .wa-subpage-head{height:58px;padding:0 10px}
  .wa-subpage-content{padding:10px}
  .wa-child-hero{padding:12px;border-radius:11px;gap:10px}
  .wa-child-hero .avatar{width:50px;height:50px}
  .wa-child-hero h1{font-size:17px}
  .wa-tabs{padding:10px 0;gap:6px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .wa-tabs::-webkit-scrollbar{display:none}
  .wa-tabs a{padding:7px 11px}
  .wa-stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
  .wa-stat{padding:11px;border-radius:10px}
  .wa-stat b{font-size:21px}
  .wa-data-card{padding:11px;border-radius:10px}
  .wa-form-card{padding:14px;border-radius:12px}
}