@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700;800&display=swap');

:root{--ink:#10221e;--muted:#71817b;--forest:#0d1d1a;--forest-soft:#17332b;--emerald:#0c8f70;--emerald-dark:#08745b;--mint:#c9f5e2;--paper:#f7fbf9;--canvas:#eaf2ee;--line:#dbe7e1;--shadow:0 22px 60px #06140f3d}
*{box-sizing:border-box}body{margin:0;font-family:'DM Sans',Arial,sans-serif;color:var(--ink);background:var(--canvas)}button,input{font:inherit}button{transition:transform .16s ease,background .16s ease,box-shadow .16s ease}button:active{transform:scale(.97)}

/* Authentication, settings, and policy */
.auth-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 78% 8%,#197456 0,transparent 27%),radial-gradient(circle at 10% 92%,#0b624f 0,transparent 32%),var(--forest)}
.auth-card,.policy-card{width:min(430px,calc(100% - 32px));padding:clamp(28px,5vw,42px);background:var(--paper);border:1px solid #ffffff8c;border-radius:30px;box-shadow:var(--shadow);text-align:center}
.auth-card:not(.settings-card) h1::before{content:'NITCHAT MESSENGER';display:block;margin-bottom:6px;color:#57907e;font-size:10px;font-weight:800;letter-spacing:1.7px}
.brand-mark,.welcome-icon{display:grid;place-items:center;background:#08765d url('logo.png') center/cover no-repeat;color:transparent;border-radius:19px;font-size:30px;width:64px;height:64px;margin:0 auto 17px;box-shadow:0 10px 22px #08745b45}.auth-card h1{margin:0;font-size:32px;letter-spacing:-1px}.muted,.switch{color:var(--muted)}.muted{line-height:1.5}.error{padding:11px 13px;color:#a63028;background:#fff0ef;border-radius:12px;font-size:14px;text-align:left}.success{border-radius:12px!important}.auth-card form{margin-top:25px;text-align:left}.auth-card label{display:block;font-size:13px;font-weight:700;margin:17px 0;color:#30453d}.auth-card input,.auth-card select{display:block;width:100%;padding:14px;margin-top:8px;border:1px solid #d5e4dd;border-radius:13px;outline-color:var(--emerald);background:#fff;color:var(--ink)}.auth-card input:focus,.auth-card select:focus{border-color:var(--emerald);box-shadow:0 0 0 3px #0c8f701c}.auth-card button,.composer button{border:0;background:var(--emerald);color:#fff;font-weight:800;cursor:pointer}.auth-card button{width:100%;padding:14px;border-radius:14px;margin-top:9px;box-shadow:0 8px 17px #08745b35}.auth-card button:hover,.composer button:hover{background:var(--emerald-dark);box-shadow:0 10px 20px #08745b42}.auth-card a,.policy-home{color:#087d62;font-weight:800;text-decoration:none}.switch{font-size:14px;margin:20px 0 0}.switch+.switch{margin-top:10px}

/* Messaging shell */
.chat-page{min-height:100vh;padding:24px;background:radial-gradient(circle at 86% 0,#1a7859 0,transparent 23%),linear-gradient(135deg,#0b1b17,#14372d)}.app-shell{display:flex;max-width:1440px;height:calc(100vh - 48px);margin:auto;overflow:hidden;background:var(--paper);border:1px solid #ffffff42;border-radius:24px;box-shadow:0 24px 70px #00000045}.sidebar{width:380px;flex:none;border-right:1px solid var(--line);background:var(--paper)}.side-header,.chat-header{height:78px;display:flex;align-items:center;gap:11px;padding:14px 18px;background:var(--forest);color:#fff}.avatar{display:grid;place-items:center;width:43px;height:43px;flex:none;border:2px solid #ffffffb3;border-radius:50%;overflow:hidden;color:#fff;font-size:14px;font-weight:800;box-shadow:0 3px 9px #06140f2b}.avatar img{width:100%;height:100%;object-fit:cover}.side-header strong,.chat-header strong,.contact strong{display:block;font-size:15px}.side-header small,.chat-header small{display:block;color:#93b5a8;font-size:12px;margin-top:3px}.contact small{display:block;color:var(--muted);font-size:12px;margin-top:3px}.logout{margin-left:auto;color:#daf8ec;font-size:22px;text-decoration:none}.search{display:flex;align-items:center;gap:10px;margin:13px 12px 10px;padding:0 13px;background:#eaf2ee;border:1px solid #dce8e3;border-radius:14px;color:#6c7c76}.search input{width:100%;border:0;outline:0;background:transparent;padding:12px 0;font-size:13px;color:var(--ink)}.contact{width:calc(100% - 16px);display:flex;align-items:center;gap:12px;padding:12px 13px;margin:4px 8px;border:0;border-radius:16px;background:transparent;text-align:left;cursor:pointer}.contact:hover,.contact.active{background:#d9f7ea}.contact-copy{min-width:0}.contact .avatar{width:47px;height:47px}.empty{padding:24px;color:var(--muted);text-align:center;font-size:14px}.conversation{flex:1;position:relative;min-width:0;background:#eaf2ee}.empty-state{height:100%;display:grid;place-content:center;text-align:center;color:#71817b;padding:20px;background:radial-gradient(circle at 50% 36%,#fafdfe,transparent 35%),#eaf2ee}.empty-state h1{color:var(--ink);font-weight:800;letter-spacing:-.6px;margin:10px}.welcome-icon{width:82px;height:82px;font-size:40px;border-radius:24px}.chat-view{height:100%;display:flex;flex-direction:column}.chat-header{background:var(--forest)}.back{display:none;border:0;background:#1c3930;font-size:32px;line-height:32px;color:#e7fff5;border-radius:50%;width:37px;height:37px}.messages{flex:1;overflow-y:auto;padding:28px 7%;background-color:#eaf2ee;background-image:radial-gradient(#cbdcd4 .65px,transparent .65px);background-size:16px 16px}.message{display:flex;align-items:end;gap:8px;max-width:min(78%,540px);width:max-content;margin:5px 0 16px;padding:10px 10px 7px 13px;background:#fff;border-radius:18px;border-bottom-left-radius:5px;font-size:14px;line-height:1.45;box-shadow:0 4px 12px #17352b12;white-space:pre-wrap;overflow-wrap:anywhere}.message.mine{margin-left:auto;background:var(--mint);border-bottom-left-radius:18px;border-bottom-right-radius:5px}.message time{font-size:10px;color:#668077;white-space:nowrap}.composer{display:flex;gap:10px;padding:12px 5%;background:#f7fbf9;border-top:1px solid var(--line)}.composer input{min-width:0;flex:1;border:1px solid #dce8e3;border-radius:24px;padding:12px 17px;outline-color:var(--emerald);background:#fff;color:var(--ink)}.composer button{width:43px;height:43px;border-radius:50%;font-size:17px;box-shadow:0 6px 14px #08745b35}.hidden{display:none!important}

.contact-copy{flex:1}.contact-copy small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.unread-badge{min-width:21px;height:21px;padding:3px 6px;border-radius:11px;background:#0c9b76;color:#fff;font-size:11px;font-weight:800;text-align:center}.message i{color:#71817b}.ticks{margin-left:3px;color:#709187}.ticks.read{color:#168fc3}.delete-message,.edit-message{border:0;background:none;color:#5b756b;font-size:17px;line-height:1;cursor:pointer;padding:0}.edited{font-size:10px;color:#668077;font-style:normal}.composer{position:relative}.composer .emoji-button{background:transparent;color:#087d62;font-size:23px;box-shadow:none}.emoji-tray{position:absolute;bottom:67px;left:5%;padding:10px 13px;background:#fff;border:1px solid #dce8e3;border-radius:16px;box-shadow:0 10px 26px #17352b24;z-index:2}.emoji-tray button{border:0;background:transparent;font-size:19px;cursor:pointer;padding:2px;box-shadow:none}.settings-link{margin-left:auto;color:#d9f5ea;text-decoration:none;font-size:19px}.settings-link+.logout{margin-left:0}.reactions{position:absolute;display:flex;gap:3px;bottom:-13px;left:8px}.message.mine .reactions{left:auto;right:8px}.reaction,.reaction-add{border:1px solid #d6e4de;background:#fff;border-radius:12px;padding:2px 7px;font-size:12px;cursor:pointer;box-shadow:0 2px 5px #17352b12}.reaction.mine{border-color:#0c9b76;background:#e4f8f0}.reaction-add{color:#087d62;font-weight:800}.reaction-picker{position:absolute;z-index:3;bottom:28px;left:4px;display:flex;gap:3px;padding:7px;background:#fff;border:1px solid #d6e4de;border-radius:16px;box-shadow:0 10px 26px #17352b29}.message.mine .reaction-picker{left:auto;right:4px}.reaction-picker button{border:0;background:transparent;font-size:19px;cursor:pointer;padding:3px}.reaction-picker button:hover{transform:scale(1.18)}.theme-toggle,.notification-toggle{margin-left:auto;border:0;background:#1c3930;color:#d9f5ea;font-size:18px;cursor:pointer;padding:7px;width:34px;height:34px;border-radius:50%}.notification-toggle{margin-left:0;font-size:16px}.theme-toggle+.notification-toggle,.notification-toggle+.settings-link{margin-left:0}.notification-toggle.enabled{color:#8ff0ce;background:#145e49}.attachment-button{border:0;background:transparent;color:#087d62;font-size:20px;cursor:pointer;padding:0;box-shadow:none}.attachment-preview{max-width:min(320px,100%);max-height:280px;display:block;border-radius:12px;margin-bottom:7px}.attachment-label{display:block;font-size:11px;color:#668077;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

html[data-theme="dark"] .chat-page{background:radial-gradient(circle at 86% 0,#176c50 0,transparent 23%),#081612}html[data-theme="dark"] .app-shell,html[data-theme="dark"] .sidebar,html[data-theme="dark"] .contact{background:#10221e;color:#ecf8f2}html[data-theme="dark"] .sidebar{border-color:#254239}html[data-theme="dark"] .search{background:#1a352d;border-color:#294b40;color:#b7d2c7}html[data-theme="dark"] .search input,html[data-theme="dark"] .composer input{background:#17332b;color:#ecf8f2;border-color:#2b5044}html[data-theme="dark"] .contact:hover,html[data-theme="dark"] .contact.active{background:#1c4538}html[data-theme="dark"] .contact small{color:#9bb8ac}html[data-theme="dark"] .conversation,html[data-theme="dark"] .messages{background-color:#0a1914}html[data-theme="dark"] .empty-state{background:#10221e;color:#b8d2c7}html[data-theme="dark"] .empty-state h1{color:#ecf8f2}html[data-theme="dark"] .message{background:#1a352d;color:#ecf8f2;box-shadow:none}html[data-theme="dark"] .message.mine{background:#08745b}html[data-theme="dark"] .message time,html[data-theme="dark"] .edited{color:#b7d2c7}html[data-theme="dark"] .settings-link,html[data-theme="dark"] .theme-toggle,html[data-theme="dark"] .logout{color:#d8f7eb}html[data-theme="dark"] .messages{background-image:none!important;background-color:#0b141a!important}

.status-link{color:#d9f5ea;text-decoration:none;font-size:19px}.notification-toggle+.status-link,.status-link+.settings-link{margin-left:0}.status-page{min-height:100vh;padding:28px;background:radial-gradient(circle at 86% 0,#1a7859 0,transparent 25%),linear-gradient(135deg,#0b1b17,#14372d)}.status-shell{width:min(760px,100%);margin:auto}.status-header{display:flex;align-items:center;gap:14px;color:#fff;margin:4px 0 20px}.status-header>a{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#1c3930;color:#e7fff5;text-decoration:none;font-size:34px;line-height:34px}.status-header span{font-size:10px;font-weight:800;letter-spacing:1.6px;color:#79d7bd}.status-header h1{font-size:29px;line-height:1;margin:4px 0 0;letter-spacing:-.8px}.status-composer,.status-list{background:var(--paper);border-radius:24px;padding:24px;box-shadow:var(--shadow)}.status-list{margin-top:16px}.status-composer h2,.status-list h2{margin:0;color:var(--ink);font-size:19px}.status-composer>p{margin:7px 0 16px;color:var(--muted);font-size:14px}.status-composer textarea{display:block;width:100%;min-height:92px;resize:vertical;padding:14px;border:1px solid #d9e6e0;border-radius:14px;outline-color:var(--emerald);font:inherit;color:var(--ink)}.status-actions{display:flex;align-items:center;gap:12px;margin-top:13px}.status-actions button{margin-left:auto;border:0;border-radius:13px;padding:12px 18px;background:var(--emerald);color:#fff;font-weight:800;cursor:pointer}.status-photo{position:relative;overflow:hidden;padding:12px 14px;border-radius:13px;background:#dff8ed;color:#087d62;font-size:14px;font-weight:800;cursor:pointer}.status-photo input{position:absolute;inset:0;opacity:0;cursor:pointer}.status-row{width:100%;display:flex;align-items:center;gap:12px;padding:13px 0;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;cursor:pointer}.status-row:last-of-type{border-bottom:0}.status-copy{flex:1;min-width:0}.status-copy strong,.status-copy small{display:block}.status-copy strong{color:var(--ink);font-size:15px}.status-copy small{margin-top:4px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.status-thumbnail{width:48px;height:48px;object-fit:cover;border-radius:13px}.status-empty{padding:20px 0 4px;color:var(--muted);text-align:center}.status-viewer{max-width:min(92vw,640px);padding:0;border:0;border-radius:24px;background:#10221e;color:#fff}.status-viewer::backdrop{background:#06140fd9}.status-viewer>div{padding:22px;text-align:center}.status-viewer strong,.status-viewer small{display:block}.status-viewer img{display:block;max-width:100%;max-height:65vh;margin:16px auto;border-radius:16px}.status-viewer p{white-space:pre-wrap;line-height:1.5}.status-viewer small{color:#a9c5ba}.status-viewer button{margin-top:18px;border:0;border-radius:18px;padding:10px 20px;background:#e5fff3;color:#0c483a;font-weight:800;cursor:pointer}

/* Shared overlays */
dialog{border:0}.chat-photo-viewer::backdrop,.photo-viewer::backdrop{background:#06140fd9}.contact-profile-card{background:var(--paper)!important;border-radius:24px!important;box-shadow:var(--shadow)}
.message-image-button{display:block;max-width:min(320px,100%);padding:0;border:0;background:transparent;cursor:zoom-in}.message-image-button .attachment-preview{margin:0}.message-image-viewer{max-width:100vw;max-height:100vh;margin:auto;padding:24px;background:transparent;color:#fff;text-align:center;overflow:visible}.message-image-viewer::backdrop{background:#020806eb}.message-image-viewer img{display:block;max-width:calc(100vw - 48px);max-height:calc(100vh - 110px);margin:auto;border-radius:14px;object-fit:contain;box-shadow:0 18px 50px #0008}.message-image-viewer p{max-width:80vw;margin:12px auto 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:13px}.message-image-close{position:fixed;top:18px;right:18px;width:42px;height:42px;border:0;border-radius:50%;background:#ffffff24;color:#fff;font-size:30px;line-height:1;cursor:pointer}
.queued-message{opacity:.7}.queued-message time{color:#087d62;font-weight:800}
.passkey-button{width:100%;margin-top:12px!important;padding:13px!important;border:1px solid #a9dfcc!important;border-radius:14px!important;background:#e8fbf2!important;color:#08745b!important;box-shadow:none!important;font-weight:800!important;cursor:pointer}.passkey-button:hover{background:#d5f5e6!important}.passkey-settings{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);text-align:left}.passkey-settings strong{display:block;font-size:15px}.passkey-settings p{margin:6px 0 12px;color:var(--muted);font-size:13px;line-height:1.45}
.passkey-list{margin-top:15px}.passkey-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:1px solid var(--line)}.passkey-row span{min-width:0;flex:1}.passkey-row strong,.passkey-row small{display:block}.passkey-row strong{font-size:13px}.passkey-row small,.passkey-empty{margin:4px 0 0;color:var(--muted);font-size:12px}.passkey-row button{width:auto!important;margin:0!important;padding:7px 11px!important;border:1px solid #e2b5b0!important;border-radius:10px!important;background:#fff4f2!important;color:#a63028!important;box-shadow:none!important;font-size:12px!important}

@media(max-width:700px){.chat-page{padding:0;background:var(--forest)}.app-shell{height:100vh;border-radius:0;border:0;box-shadow:none}.sidebar{width:100%;border:0}.conversation{display:none}.mobile-chat .sidebar{display:none}.mobile-chat .conversation{display:block;width:100%}.back{display:block}.messages{padding:22px 14px}.chat-header,.side-header{height:70px}.app-shell{box-shadow:none}.auth-page{padding:16px}.auth-card{width:min(430px,100%);border-radius:26px}}