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

:root{
    --glass:rgba(16,18,24,.72);--glass-h:rgba(22,24,32,.78);--glass-border:rgba(255,255,255,.07);--glass-border-h:rgba(255,255,255,.12);
    --surface:rgba(255,255,255,.05);--surface-h:rgba(255,255,255,.08);
    --text:#e2e4e8;--muted:rgba(255,255,255,.5);--dim:rgba(255,255,255,.25);
    --accent:#5e9fd0;--accent-bg:rgba(94,159,208,.1);--accent-border:rgba(94,159,208,.2);
    --red:#e74c3c;--red-bg:rgba(231,76,60,.08);--green:#2ecc71;--amber:#f39c12;
    --r:14px;--r-sm:10px;--blur:blur(24px) saturate(1.2);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Inter',sans-serif;color:var(--text);min-height:100vh;user-select:none;
    background:#0c0e12 url('/img/background.jpg') center/cover no-repeat fixed}
body::before{content:'';position:fixed;inset:0;background:rgba(8,10,14,.6);z-index:0}

/* HEADER */
.hdr{position:sticky;top:0;z-index:100;padding:8px 14px;display:flex;align-items:center}
.hdr-bar{flex:1;height:46px;background:var(--glass);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--r);display:flex;align-items:center;padding:0 6px;gap:2px;box-shadow:0 2px 12px rgba(0,0,0,.2)}
.hdr-logo{display:flex;align-items:center;gap:7px;padding:0 10px;font-weight:600;font-size:.88rem;cursor:pointer;text-decoration:none;color:var(--text)}
.hdr-logo svg{width:20px;height:20px;stroke:var(--accent);fill:none;stroke-width:1.8}
.hdr-sp{flex:1}
.hdr-search{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--r-sm);padding:0 12px;height:34px;min-width:240px;max-width:400px;transition:all .2s}
.hdr-search:focus-within{border-color:var(--glass-border-h);background:var(--surface-h)}
.hdr-search svg{width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:1.8;flex-shrink:0}
.hdr-search input{flex:1;border:none;outline:none;background:none;color:var(--text);font-family:'Inter',sans-serif;font-size:.8rem}
.hdr-search input::placeholder{color:var(--dim)}
.hdr-btn{width:38px;height:38px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;color:var(--muted);cursor:pointer;transition:all .15s;text-decoration:none;border:none;background:none}
.hdr-btn:hover{background:var(--surface);color:var(--text)}
.hdr-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8}
.hdr-avatar{width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;font-size:.68rem;font-weight:600;margin:0 4px;cursor:pointer;transition:all .15s;overflow:hidden;border:2px solid transparent;flex-shrink:0}
.hdr-avatar:hover{border-color:rgba(255,255,255,.2)}

/* User dropdown */
.user-dropdown{position:absolute;top:52px;right:14px;width:220px;background:var(--glass);backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--r);padding:6px 0;box-shadow:0 8px 30px rgba(0,0,0,.4);display:none;z-index:200;animation:ctxIn .1s ease}
.user-dropdown.open{display:block}
.ud-header{padding:12px 16px;border-bottom:1px solid var(--glass-border);margin-bottom:4px}
.ud-name{font-size:.85rem;font-weight:600}
.ud-email{font-size:.7rem;color:var(--dim);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ud-item{padding:8px 16px;font-size:.8rem;color:var(--text);cursor:pointer;display:flex;align-items:center;gap:10px;transition:background .1s;text-decoration:none}
.ud-item:hover{background:var(--surface)}
.ud-item svg{width:16px;height:16px;fill:none;stroke:var(--muted);stroke-width:1.8;flex-shrink:0}
.ud-sep{height:1px;background:var(--glass-border);margin:4px 10px}
.ud-item.danger{color:var(--red)}.ud-item.danger svg{stroke:var(--red)}

/* BODY LAYOUT */
.body-wrap{position:relative;z-index:1;display:flex;align-items:flex-start;gap:10px;padding:10px 14px 14px;min-height:calc(100vh - 66px)}

/* SIDEBAR */
.side{width:220px;flex-shrink:0;background:var(--glass);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--r);padding:10px 6px;box-shadow:0 2px 12px rgba(0,0,0,.15);display:flex;flex-direction:column;overflow-y:auto;position:sticky;top:72px}
.si{display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:var(--r-sm);font-size:.82rem;color:var(--muted);cursor:pointer;transition:all .12s;text-decoration:none;position:relative}
.si:hover{background:var(--surface);color:var(--text)}
.si.active{background:rgba(255,255,255,.1);color:#fff}
.si svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;flex-shrink:0}
.si .badge{margin-left:auto;font-size:.65rem;font-weight:600;background:var(--accent-bg);color:var(--accent);border:1px solid var(--accent-border);padding:1px 7px;border-radius:10px;min-width:20px;text-align:center}
.s-sep{height:1px;background:var(--glass-border);margin:6px 8px}
.s-lbl{font-size:.65rem;color:var(--dim);font-weight:600;padding:8px 12px 3px;text-transform:uppercase;letter-spacing:.06em}
.compose-btn{display:flex;align-items:center;gap:8px;padding:10px 14px;margin:4px 6px 8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-sm);color:#fff;font-family:'Inter',sans-serif;font-size:.82rem;font-weight:600;cursor:pointer;transition:all .15s;text-decoration:none}
.compose-btn:hover{background:rgba(255,255,255,.18)}
.compose-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8}

/* MAIN TILE */
.main-tile{flex:1;background:var(--glass);backdrop-filter:var(--blur);-webkit-backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--r);overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.15);display:flex;flex-direction:column;min-height:calc(100vh - 86px)}

/* TOOLBAR */
.toolbar{padding:10px 16px;border-bottom:1px solid var(--glass-border);display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-height:48px}
.tb{padding:7px 14px;background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--r-sm);color:var(--muted);font-family:'Inter',sans-serif;font-size:.78rem;cursor:pointer;display:flex;align-items:center;gap:5px;transition:all .15s;font-weight:500;text-decoration:none}
.tb:hover{background:var(--surface-h);color:var(--text);border-color:var(--glass-border-h)}
.tb.primary{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.12);color:#fff}.tb.primary:hover{background:rgba(255,255,255,.18)}
.tb svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8}
.spacer{flex:1}
.toolbar-info{font-size:.74rem;color:var(--dim)}

/* SELECT ALL CHECKBOX */
.cb-all{display:flex;align-items:center;gap:8px;cursor:pointer;margin-right:6px}
.cb-all input{display:none}
.cb-box{width:18px;height:18px;border:2px solid rgba(255,255,255,.15);border-radius:5px;display:flex;align-items:center;justify-content:center;transition:all .15s}
.cb-all input:checked+.cb-box{background:var(--accent);border-color:var(--accent)}
.cb-box svg{width:12px;height:12px;stroke:#fff;fill:none;stroke-width:3;opacity:0;transition:opacity .1s}
.cb-all input:checked+.cb-box svg{opacity:1}

/* MAIL LIST */
.mail-list{flex:1;overflow-y:auto}
.mail-list::-webkit-scrollbar{width:5px}.mail-list::-webkit-scrollbar-thumb{background:rgba(255,255,255,.06);border-radius:4px}

.mail-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--glass-border);cursor:pointer;transition:background .12s;text-decoration:none;color:var(--text)}
.mail-item:hover{background:var(--surface)}
.mail-item.unread{background:rgba(255,255,255,.03)}
.mail-item.unread .mi-from{font-weight:600;color:#fff}
.mail-item.unread .mi-subject{color:#fff;font-weight:600}
.mail-item.selected{background:var(--accent-bg)}

.mi-cb{flex-shrink:0;cursor:pointer}
.mi-cb input{display:none}
.mi-cb .cb-box{width:16px;height:16px;border-radius:4px}

.mi-avatar{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:.62rem;font-weight:600;flex-shrink:0;color:var(--muted)}
.mi-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.mi-top{display:flex;align-items:center;gap:8px}
.mi-from{font-size:.82rem;font-weight:500;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.mi-date{font-size:.68rem;color:var(--dim);flex-shrink:0;font-family:'JetBrains Mono',monospace}
.mi-bottom{display:flex;align-items:center;gap:6px}
.mi-subject{font-size:.78rem;color:var(--muted);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mi-preview{font-size:.72rem;color:var(--dim);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mi-icons{display:flex;gap:4px;flex-shrink:0;align-items:center}
.mi-icons svg{width:14px;height:14px;stroke:var(--dim);fill:none;stroke-width:1.8}
.mi-star{cursor:pointer;transition:all .15s}
.mi-star:hover svg{stroke:var(--amber)}
.mi-star.starred svg{stroke:var(--amber);fill:var(--amber)}
.mi-att svg{stroke:var(--muted)}
.mi-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);flex-shrink:0}

/* EMPTY STATE */
.empty-mail{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;gap:10px;padding:60px 20px}
.empty-mail svg{width:48px;height:48px;stroke:var(--dim);fill:none;stroke-width:1;opacity:.3}
.empty-mail .et{font-size:.88rem;color:var(--dim)}
.empty-mail .es{font-size:.76rem;color:rgba(255,255,255,.15)}

/* PAGINATION */
.pagination{display:flex;align-items:center;justify-content:center;gap:4px;padding:12px 16px;border-top:1px solid var(--glass-border)}
.page-btn{padding:6px 12px;background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--r-sm);color:var(--muted);font-family:'Inter',sans-serif;font-size:.76rem;cursor:pointer;transition:all .15s;text-decoration:none}
.page-btn:hover{background:var(--surface-h);color:var(--text)}
.page-btn.active{background:rgba(255,255,255,.12);color:#fff}
.page-btn.disabled{opacity:.3;cursor:default;pointer-events:none}
.page-info{font-size:.72rem;color:var(--dim);padding:0 8px}

/* MAIL VIEW */
.mail-view{flex:1;overflow-y:auto;padding:0}
.mail-view::-webkit-scrollbar{width:5px}.mail-view::-webkit-scrollbar-thumb{background:rgba(255,255,255,.06);border-radius:4px}

.mv-header{padding:20px 24px;border-bottom:1px solid var(--glass-border)}
.mv-subject{font-size:1.1rem;font-weight:700;margin-bottom:14px;line-height:1.4}
.mv-meta{display:flex;align-items:flex-start;gap:14px}
.mv-avatar{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:600;flex-shrink:0;color:var(--muted)}
.mv-info{flex:1;min-width:0}
.mv-from{font-size:.88rem;font-weight:600}
.mv-email{font-size:.72rem;color:var(--dim)}
.mv-to{font-size:.72rem;color:var(--dim);margin-top:2px}
.mv-date-full{font-size:.72rem;color:var(--dim);flex-shrink:0;text-align:right}

.mv-body{padding:24px;font-size:.88rem;line-height:1.7;color:var(--text);user-select:text}
.mv-body img{max-width:100%;height:auto;border-radius:6px}
.mv-body a{color:var(--accent)}
.mv-body blockquote{border-left:3px solid var(--glass-border);margin:10px 0;padding:8px 16px;color:var(--muted)}
.mv-body-text{white-space:pre-wrap;word-break:break-word}

.mv-attachments{padding:16px 24px;border-top:1px solid var(--glass-border)}
.mv-att-title{font-size:.72rem;color:var(--dim);text-transform:uppercase;letter-spacing:.05em;margin-bottom:10px;font-weight:600}
.mv-att-list{display:flex;flex-wrap:wrap;gap:8px}
.mv-att-item{display:flex;align-items:center;gap:8px;padding:8px 14px;background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--r-sm);cursor:pointer;transition:all .15s;text-decoration:none;color:var(--text)}
.mv-att-item:hover{background:var(--surface-h);border-color:var(--glass-border-h)}
.mv-att-icon{font-size:1rem}
.mv-att-name{font-size:.78rem;font-weight:500;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mv-att-size{font-size:.66rem;color:var(--dim)}

/* COMPOSE */
.compose-wrap{flex:1;display:flex;flex-direction:column;overflow:hidden}
.compose-fields{padding:16px 20px;display:flex;flex-direction:column;gap:8px;border-bottom:1px solid var(--glass-border)}
.cf-row{display:flex;align-items:center;gap:10px}
.cf-label{font-size:.76rem;color:var(--dim);width:30px;flex-shrink:0;text-align:right}
.cf-input{flex:1;padding:8px 12px;background:rgba(255,255,255,.04);border:1px solid var(--glass-border);border-radius:var(--r-sm);color:var(--text);font-family:'Inter',sans-serif;font-size:.84rem;outline:none;transition:border-color .2s}
.cf-input:focus{border-color:rgba(255,255,255,.2)}
.cf-input::placeholder{color:var(--dim)}

.compose-editor{flex:1;display:flex;flex-direction:column;overflow:hidden}
.compose-textarea{flex:1;resize:none;border:none;outline:none;padding:16px 20px;background:transparent;color:var(--text);font-family:'Inter',sans-serif;font-size:.88rem;line-height:1.7}
.compose-textarea::placeholder{color:var(--dim)}

.compose-attachments{padding:10px 20px;border-top:1px solid var(--glass-border);display:flex;flex-wrap:wrap;gap:6px}
.ca-item{display:flex;align-items:center;gap:6px;padding:5px 10px;background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--r-sm);font-size:.74rem}
.ca-item .ca-name{max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ca-item .ca-size{color:var(--dim)}
.ca-remove{width:16px;height:16px;border-radius:4px;border:none;background:none;color:var(--dim);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.8rem;transition:color .15s}
.ca-remove:hover{color:var(--red)}

.compose-bottom{padding:10px 20px;border-top:1px solid var(--glass-border);display:flex;align-items:center;gap:8px}
.compose-send{padding:9px 22px;background:var(--accent);border:none;border-radius:var(--r-sm);color:#fff;font-family:'Inter',sans-serif;font-size:.82rem;font-weight:600;cursor:pointer;transition:all .15s;display:flex;align-items:center;gap:6px}
.compose-send:hover{filter:brightness(1.1)}
.compose-send:disabled{opacity:.5;cursor:default}
.compose-send svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2}
.compose-att-btn{padding:9px 14px;background:var(--surface);border:1px solid var(--glass-border);border-radius:var(--r-sm);color:var(--muted);font-family:'Inter',sans-serif;font-size:.78rem;cursor:pointer;transition:all .15s;display:flex;align-items:center;gap:5px}
.compose-att-btn:hover{color:var(--text);background:var(--surface-h)}
.compose-att-btn svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.8}

/* LOADING */
.loading{display:flex;align-items:center;justify-content:center;flex:1;padding:40px}
.spinner{width:24px;height:24px;border:2px solid var(--glass-border);border-top-color:var(--accent);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* TOAST */
.toast{position:fixed;bottom:20px;right:20px;padding:12px 20px;background:var(--glass);backdrop-filter:var(--blur);border:1px solid var(--glass-border);border-radius:var(--r);font-size:.82rem;box-shadow:0 6px 20px rgba(0,0,0,.3);transform:translateY(16px);opacity:0;transition:all .3s;z-index:999;pointer-events:none}
.toast.show{transform:translateY(0);opacity:1}
.toast.success{border-color:rgba(46,204,113,.2);color:var(--green)}
.toast.error{border-color:rgba(231,76,60,.2);color:var(--red)}

/* ANIMATIONS */
@keyframes ctxIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}
@keyframes mIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* MOBILE SIDEBAR TOGGLE */
.mobile-menu{display:none}
.side-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:90}

@media(max-width:768px){
    .side{display:none;position:fixed;left:0;top:0;bottom:0;z-index:95;border-radius:0 var(--r) var(--r) 0;width:260px}
    .side.open{display:flex}
    .side-overlay.open{display:block}
    .mobile-menu{display:flex}
    .body-wrap{flex-direction:column}
    .hdr-search{min-width:120px;max-width:200px}
    .mail-item{padding:10px 12px}
    .mv-header{padding:14px 16px}
    .mv-body{padding:16px}
}