:root{
  --bg:#f4f7fb; --card:#ffffff; --ink:#101828; --muted:#667085; --soft:#eef4ff; --line:#dfe7f2;
  --blue:#2563eb; --violet:#7c3aed; --cyan:#06b6d4; --green:#10b981; --red:#ef4444; --orange:#f97316;
  --shadow:0 24px 70px rgba(16,24,40,.14); --radius:28px;
}
*{box-sizing:border-box} html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}
button,input{font:inherit} button{user-select:none}.hidden{display:none!important}.release-watermark{position:fixed;right:12px;bottom:10px;z-index:99999;padding:8px 11px;border-radius:999px;background:rgba(255,255,255,.9);border:1px solid #d8e3f2;color:#2563eb;font-size:11px;font-weight:1000;letter-spacing:.16em;box-shadow:0 12px 30px rgba(16,24,40,.12)}
.logo,.side-brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-weight:1000}.logo small,.side-brand small{display:block;font-size:11px;color:var(--muted);font-weight:800}.logo-icon{width:40px;height:40px;border-radius:15px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--blue),var(--violet));box-shadow:0 18px 35px rgba(37,99,235,.22);font-weight:1000}.btn{border:0;border-radius:16px;padding:13px 18px;font-weight:1000;cursor:pointer;transition:.2s transform,.2s box-shadow,.2s background}.btn:hover{transform:translateY(-1px)}.btn.primary{background:linear-gradient(135deg,var(--blue),var(--violet));color:#fff;box-shadow:0 18px 32px rgba(37,99,235,.25)}.btn.light{background:#fff;color:#344054;border:1px solid var(--line);box-shadow:0 10px 25px rgba(16,24,40,.06)}.btn.full{width:100%;margin-top:12px}.btn.big{padding:16px 22px}.btn.small{padding:10px 13px;border-radius:13px}.eyebrow{font-size:12px;font-weight:1000;letter-spacing:.16em;text-transform:uppercase;color:var(--blue);margin:0 0 10px}.form-message{min-height:20px;color:var(--red);font-weight:900;font-size:13px}.status-pill{display:inline-flex;align-items:center;gap:8px;border-radius:999px;padding:9px 12px;font-size:12px;font-weight:1000;border:1px solid}.status-pill:before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}.status-pill.ok{background:#ecfdf3;color:#027a48;border-color:#abefc6}.status-pill.warning{background:#fff7ed;color:#c2410c;border-color:#fed7aa}.status-pill.neutral{background:#f8fafc;color:#475467;border-color:#d0d5dd}
/* Login */
.login-page{background:radial-gradient(circle at 10% 8%,#dbeafe 0,#f8fbff 36%,#eef2ff 78%,#f8fafc 100%);overflow-x:hidden}.login-shell{max-width:1200px;margin:auto;padding:24px 22px 60px}.top-nav,.dash-nav{display:flex;align-items:center;justify-content:space-between;gap:20px}.nav-pill{border:1px solid #d6e2f2;border-radius:999px;padding:10px 14px;color:#344054;text-decoration:none;background:rgba(255,255,255,.75);font-weight:900}.login-grid{min-height:calc(100vh - 95px);display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}.login-copy h1{font-size:clamp(42px,7vw,82px);line-height:.94;letter-spacing:-.065em;margin:0 0 20px;color:#0f172a}.lead{font-size:19px;line-height:1.7;color:#475467;max-width:680px}.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0}.hero-badges span{background:rgba(255,255,255,.8);border:1px solid #d9e7fb;border-radius:999px;padding:11px 14px;font-weight:900;color:#344054}.phone-preview{max-width:390px;margin-top:26px;background:#fff;border:1px solid #dbe4f0;border-radius:34px;padding:18px;box-shadow:var(--shadow);transform:rotate(-2deg)}.phone-head{display:flex;align-items:center;gap:9px;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:14px}.phone-head span{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--blue))}.phone-head em{margin-left:auto;color:#027a48;font-size:12px;font-style:normal;font-weight:900}.bubble{max-width:82%;padding:12px 14px;border-radius:20px;margin:10px 0;font-weight:800;line-height:1.35}.bubble.in{background:#f2f4f7}.bubble.out{background:linear-gradient(135deg,var(--blue),var(--violet));color:white;margin-left:auto}.typing-preview,.typing-dots{display:inline-flex;gap:4px;background:#f2f4f7;border-radius:999px;padding:11px 13px}.typing-preview i,.typing-dots span{width:6px;height:6px;border-radius:50%;background:#98a2b3;animation:typing 1s infinite}.typing-preview i:nth-child(2),.typing-dots span:nth-child(2){animation-delay:.14s}.typing-preview i:nth-child(3),.typing-dots span:nth-child(3){animation-delay:.28s}@keyframes typing{0%,80%,100%{transform:translateY(0);opacity:.45}40%{transform:translateY(-5px);opacity:1}}
.login-card,.connect-modal,.white-panel,.welcome-panel,.feature-grid article{background:rgba(255,255,255,.92);border:1px solid #dce7f5;border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(16px)}.login-card{padding:30px}.lock-orb,.modal-icon{width:58px;height:58px;border-radius:21px;display:grid;place-items:center;background:linear-gradient(135deg,#e0f2fe,#eef2ff);font-size:26px;margin-bottom:18px}.login-card h2,.connect-modal h2{font-size:34px;line-height:1;margin:0 0 10px;letter-spacing:-.04em}.login-card p{color:var(--muted);line-height:1.5}.login-card label{display:block;margin:15px 0 8px;font-size:13px;font-weight:1000;color:#344054}.login-card input{width:100%;border:1px solid var(--line);background:#f8fafc;border-radius:16px;padding:15px 16px;outline:none}.login-card input:focus,.composer input:focus{border-color:#93c5fd;box-shadow:0 0 0 4px rgba(37,99,235,.12);background:#fff}.demo-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.demo-row button{border:1px solid var(--line);background:#f8fafc;border-radius:14px;padding:11px;font-weight:900;cursor:pointer}
.modal-backdrop{position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:18px;background:rgba(15,23,42,.25);backdrop-filter:blur(12px)}.connect-modal{width:min(560px,100%);padding:28px;position:relative}.modal-close{position:absolute;right:17px;top:15px;width:36px;height:36px;border:0;border-radius:50%;background:#f2f4f7;font-size:24px;cursor:pointer}.modal-text{color:var(--muted);line-height:1.55}.connect-list{display:grid;gap:10px;margin:18px 0}.connect-option{display:flex;align-items:center;gap:12px;border:1px solid var(--line);background:#f8fafc;border-radius:18px;padding:13px;cursor:pointer}.connect-option.active{background:#eff6ff;border-color:#93c5fd;box-shadow:0 0 0 4px rgba(37,99,235,.08)}.connect-option b{display:block}.connect-option span{display:block;color:var(--muted);font-size:13px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap}.avatar{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:1000;background:linear-gradient(135deg,var(--cyan),var(--blue))}.avatar.large{width:54px;height:54px}
/* Dashboard */
.dashboard-page{background:linear-gradient(180deg,#f8fbff,#eef2ff)}.dash-nav{height:76px;padding:0 28px;background:rgba(255,255,255,.88);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30;backdrop-filter:blur(14px)}.nav-actions{display:flex;align-items:center;gap:10px}.dash-wrap{max-width:1180px;margin:auto;padding:32px 22px 70px}.welcome-panel{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:30px;background:linear-gradient(135deg,#fff,#eff6ff)}.welcome-panel h1{font-size:clamp(34px,5vw,58px);letter-spacing:-.055em;margin:0 0 8px}.welcome-panel p{color:#475467;line-height:1.6;max-width:690px}.white-panel{margin-top:22px;padding:26px}.panel-title-row{display:flex;align-items:center;justify-content:space-between;gap:18px}.panel-title-row h2{font-size:30px;margin:0}.contacts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;margin-top:18px}.contact-card{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:17px;box-shadow:0 14px 35px rgba(16,24,40,.07)}.contact-card b{display:block}.contact-card span{display:block;color:var(--muted);font-size:13px}.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}.feature-grid article{padding:20px;box-shadow:none}.feature-grid b{display:block;margin-bottom:8px}.feature-grid span{color:var(--muted);font-size:14px;line-height:1.5}
/* Chat */
.chat-page{height:100vh;overflow:hidden;background:#edf3fb}.messenger-app{height:100vh;display:grid;grid-template-columns:330px 1fr}.sidebar{background:#fff;border-right:1px solid var(--line);padding:22px;display:flex;flex-direction:column;gap:16px}.side-search{background:#f2f4f7;border-radius:16px;padding:14px;color:#667085;font-weight:900}.thread-card{display:flex;align-items:center;gap:12px;border-radius:20px;padding:14px;background:#f8fafc;border:1px solid var(--line)}.thread-card.active{background:#eff6ff;border-color:#bfdbfe}.thread-card b{display:block}.thread-card span,.side-tip span{display:block;color:var(--muted);font-size:13px;line-height:1.45}.side-tip{margin-top:auto;background:#f8fafc;border:1px dashed #cbd5e1;border-radius:18px;padding:16px}.side-tip b{display:block;margin-bottom:6px}.chat-panel{height:100vh;display:flex;flex-direction:column;background:linear-gradient(180deg,#f8fbff,#edf3fb)}.chat-header{height:84px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 22px;backdrop-filter:blur(14px);z-index:5}.chat-person{display:flex;align-items:center;gap:13px}.chat-person h1{font-size:22px;margin:0;letter-spacing:-.02em}.chat-person p{margin:3px 0 0;color:var(--muted);font-size:13px}.chat-actions{display:flex;align-items:center;gap:10px}.mobile-back{display:none;border:0;background:#f2f4f7;width:38px;height:38px;border-radius:50%;font-size:28px;line-height:1}.message-list{flex:1;overflow:auto;padding:26px;display:flex;flex-direction:column;gap:10px;background-image:radial-gradient(circle at 18px 18px,rgba(37,99,235,.045) 0 2px,transparent 2px);background-size:34px 34px}.empty-state{margin:auto;text-align:center;max-width:410px;color:#667085}.empty-state b{display:block;color:#1d2939;font-size:24px;margin-bottom:8px}.message{max-width:min(680px,76%);border-radius:23px;padding:11px 13px;box-shadow:0 10px 24px rgba(16,24,40,.08);word-wrap:break-word}.message.in{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:8px}.message.out{align-self:flex-end;background:linear-gradient(135deg,var(--blue),var(--violet));color:#fff;border-bottom-right-radius:8px}.message .msg-meta{display:flex;gap:8px;justify-content:flex-end;margin-top:7px;font-size:11px;opacity:.78;font-weight:900}.message img,.message video{max-width:min(310px,100%);border-radius:16px;display:block;background:#000}.message audio{max-width:280px}.file-tile{display:flex;align-items:center;gap:10px;min-width:220px;padding:9px;border-radius:14px;background:rgba(255,255,255,.2)}.message.in .file-tile{background:#f2f4f7}.file-tile b{display:block}.file-tile small{display:block;opacity:.8}.typing-line{height:34px;display:flex;align-items:center;gap:9px;padding:0 26px;color:#667085;font-size:13px}.composer{min-height:82px;background:#fff;border-top:1px solid var(--line);display:flex;align-items:center;gap:9px;padding:14px 18px}.composer input{flex:1;min-width:80px;border:1px solid var(--line);background:#f8fafc;border-radius:999px;padding:14px 17px;outline:none}.tool-btn,.voice-btn,.send-btn{border:0;cursor:pointer;font-weight:1000}.tool-btn{width:44px;height:44px;border-radius:50%;background:#f2f4f7;color:#344054}.voice-btn{width:46px;height:46px;border-radius:50%;background:#eef2ff;color:#3730a3}.send-btn{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--green),#14b8a6);color:#fff;box-shadow:0 12px 25px rgba(16,185,129,.25)}.recording-bar{position:fixed;left:358px;right:22px;bottom:96px;background:#fff7ed;border:1px solid #fed7aa;border-radius:20px;padding:13px 15px;display:flex;align-items:center;gap:12px;box-shadow:var(--shadow);z-index:20;color:#9a3412}.recording-bar small{display:block}.recording-bar button{margin-left:auto;border:0;background:#ffedd5;color:#9a3412;border-radius:12px;padding:9px 12px;font-weight:1000}.pulse-dot{width:12px;height:12px;border-radius:50%;background:#ef4444;animation:pulse 1s infinite}@keyframes pulse{50%{transform:scale(1.55);opacity:.45}}
@media(max-width:900px){.login-grid{grid-template-columns:1fr;gap:20px}.login-copy h1{font-size:44px}.phone-preview{display:none}.dash-nav{padding:0 14px}.nav-actions .status-pill{display:none}.welcome-panel{display:block}.welcome-panel .btn{width:100%;margin-top:16px}.feature-grid{grid-template-columns:1fr}.panel-title-row{display:block}.messenger-app{grid-template-columns:1fr}.sidebar{display:none}.chat-header{height:76px;padding:0 12px}.mobile-back{display:block}.desktop-only{display:none!important}.message-list{padding:16px}.message{max-width:88%}.composer{padding:10px;gap:6px}.tool-btn{width:38px;height:38px}.voice-btn{width:40px;height:40px}.send-btn{width:42px;height:42px}.recording-bar{left:12px;right:12px}.connect-modal{padding:22px}.modal-actions .btn{flex:1}.release-watermark{font-size:9px}}
@media(max-width:520px){.login-shell{padding:18px 14px 40px}.top-nav .nav-pill{display:none}.login-copy h1{font-size:38px}.lead{font-size:16px}.login-card{padding:22px;border-radius:24px}.demo-row{grid-template-columns:1fr}.dash-wrap{padding:22px 12px 60px}.white-panel,.welcome-panel{padding:20px;border-radius:24px}.contacts-grid{grid-template-columns:1fr}.contact-card{display:block}.contact-card .btn{width:100%;margin-top:12px}.chat-person h1{font-size:18px}.chat-person p{font-size:12px}.avatar.large{width:46px;height:46px}.composer input{padding:12px 14px}.message img,.message video{max-width:245px}}


/* === V10.2 HARD FIX: mobile composer visible + hide sidebar option === */
html,body{height:100%;margin:0;overflow:hidden}.chat-page{height:var(--app-height,100dvh);min-height:var(--app-height,100dvh);overflow:hidden;position:fixed;inset:0;width:100%;background:#edf3fb}.messenger-app{height:var(--app-height,100dvh);min-height:0;display:grid;grid-template-columns:330px minmax(0,1fr);overflow:hidden}.chat-panel{height:var(--app-height,100dvh);min-height:0;display:grid;grid-template-rows:84px minmax(0,1fr) auto auto;overflow:hidden;background:linear-gradient(180deg,#f8fbff,#edf3fb)}.message-list{min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:18px}.typing-line{min-height:34px;height:auto}.composer{position:relative;z-index:35;flex:0 0 auto;min-height:76px;padding-bottom:calc(14px + env(safe-area-inset-bottom));box-shadow:0 -18px 40px rgba(15,23,42,.08)}.sidebar{min-width:0;overflow:hidden;transition:transform .24s ease,opacity .2s ease,width .24s ease,padding .24s ease}.chat-page.sidebar-collapsed .messenger-app{grid-template-columns:0 minmax(0,1fr)}.chat-page.sidebar-collapsed .sidebar{width:0;padding-left:0;padding-right:0;opacity:0;pointer-events:none;transform:translateX(-100%)}.sidebar-toggle,.side-close{border:0;cursor:pointer;display:grid;place-items:center;font-weight:1000}.sidebar-toggle{width:42px;height:42px;border-radius:14px;background:#f2f4f7;color:#344054;font-size:22px;flex:0 0 auto}.side-close{margin-left:auto;width:34px;height:34px;border-radius:50%;background:#f2f4f7;color:#344054;font-size:20px}.side-brand{display:flex;align-items:center;gap:10px}.composer input{height:48px}.tool-btn,.voice-btn,.send-btn{flex:0 0 auto;display:grid;place-items:center}.empty-state{pointer-events:none}.mobile-back{flex:0 0 auto}
@media(max-width:1180px){.messenger-app{grid-template-columns:minmax(0,1fr)}.sidebar{position:fixed;left:0;top:0;bottom:0;height:var(--app-height,100dvh);width:min(330px,86vw);z-index:90;transform:translateX(-110%);box-shadow:28px 0 60px rgba(15,23,42,.18);opacity:1;pointer-events:auto}.chat-page.sidebar-open .sidebar{transform:translateX(0)}.chat-page.sidebar-open:before{content:"";position:fixed;inset:0;background:rgba(15,23,42,.35);z-index:70}.chat-page.sidebar-collapsed .messenger-app{grid-template-columns:minmax(0,1fr)}.chat-page.sidebar-collapsed .sidebar{width:min(330px,86vw);padding:22px;opacity:1;pointer-events:auto}.chat-header{height:70px;padding:0 12px}.chat-panel{grid-template-rows:70px minmax(0,1fr) auto auto}.chat-person{min-width:0}.chat-person h1,.chat-person p{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:42vw}.message-list{padding:14px}.composer{display:grid;grid-template-columns:42px 42px 42px minmax(0,1fr) 42px 44px;gap:7px;align-items:center;min-height:70px;padding:10px 10px calc(10px + env(safe-area-inset-bottom))}.composer input{width:100%;min-width:0}.tool-btn{width:42px;height:42px}.voice-btn{width:42px;height:42px}.send-btn{width:44px;height:44px}.recording-bar{left:10px;right:10px;bottom:calc(82px + env(safe-area-inset-bottom))}.mobile-back{display:grid}.desktop-only{display:none!important}}
@media(max-width:560px){.chat-header{height:66px}.chat-panel{grid-template-rows:66px minmax(0,1fr) auto auto}.avatar.large{width:42px;height:42px}.chat-person{gap:7px}.chat-actions{gap:6px}.chat-actions .status-pill{font-size:10px;padding:7px 9px}.chat-person h1{font-size:16px}.chat-person p{font-size:11px;max-width:30vw}.message-list{padding:12px 9px}.message{max-width:92%;font-size:14px}.composer{grid-template-columns:36px 36px 36px minmax(0,1fr) 38px 40px;gap:5px;padding:9px 7px calc(9px + env(safe-area-inset-bottom));min-height:66px}.tool-btn{width:36px;height:36px;font-size:14px}.voice-btn{width:38px;height:38px;font-size:14px}.send-btn{width:40px;height:40px;font-size:14px}.composer input{height:42px;padding:10px 12px;font-size:14px}.sidebar-toggle{width:38px;height:38px;border-radius:12px}.mobile-back{display:none}.message img,.message video{max-width:230px}.recording-bar{bottom:calc(74px + env(safe-area-inset-bottom));border-radius:16px}}
@supports(height:100svh){.chat-page,.messenger-app,.chat-panel,.sidebar{height:var(--app-height,100svh)}}