/* ============================================================
   MailPro — CSS principal (dark-first, Syne + DM Sans)
   ============================================================ */

:root {
    --bg-base:       #08080e;
    --bg-surface:    #0f0f17;
    --bg-elevated:   #16161f;
    --bg-hover:      #1c1c28;
    --bg-card:       #13131a;
    --border:        rgba(255,255,255,0.07);
    --border-hi:     rgba(255,255,255,0.13);
    --text-1:        #eeeef5;
    --text-2:        #8686a0;
    --text-3:        #50506a;
    --accent:        #7c6fff;
    --accent-dim:    rgba(124,111,255,0.18);
    --accent-glow:   rgba(124,111,255,0.30);
    --accent-hover:  #9488ff;
    --green:         #22c55e;
    --green-dim:     rgba(34,197,94,0.12);
    --red:           #ef4444;
    --red-dim:       rgba(239,68,68,0.12);
    --yellow:        #f59e0b;
    --yellow-dim:    rgba(245,158,11,0.12);
    --blue:          #38bdf8;
    --blue-dim:      rgba(56,189,248,0.12);
    --sidebar-w:     256px;
    --r:             12px;
    --r-sm:          8px;
    --r-lg:          18px;
    --shadow:        0 4px 28px rgba(0,0,0,.45);
    --shadow-lg:     0 8px 48px rgba(0,0,0,.55);
    --font-h:        'Syne', sans-serif;
    --font-b:        'DM Sans', sans-serif;
    --ease:          cubic-bezier(.4,0,.2,1);
}

[data-theme="light"] {
    --bg-base:     #f2f2f7;
    --bg-surface:  #ffffff;
    --bg-elevated: #f8f8fc;
    --bg-hover:    #ededf5;
    --bg-card:     #ffffff;
    --border:      rgba(0,0,0,0.07);
    --border-hi:   rgba(0,0,0,0.13);
    --text-1:      #111120;
    --text-2:      #5a5a78;
    --text-3:      #9898b0;
    --shadow:      0 4px 28px rgba(0,0,0,.08);
    --shadow-lg:   0 8px 48px rgba(0,0,0,.12);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-b);background:var(--bg-base);color:var(--text-1);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}
a{color:var(--accent);text-decoration:none;transition:.2s var(--ease)}
a:hover{color:var(--accent-hover)}

/* ── Layout ── */
.app-layout{display:flex;min-height:100vh}

/* ── Sidebar ── */
.sidebar{
    width:var(--sidebar-w);background:var(--bg-surface);
    border-right:1px solid var(--border);
    display:flex;flex-direction:column;
    position:fixed;top:0;left:0;bottom:0;z-index:100;
    transition:transform .3s var(--ease);
}
.sidebar-header{
    padding:22px 18px 16px;
    display:flex;align-items:center;justify-content:space-between;
    border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-1);font-family:var(--font-h);font-weight:700;font-size:17px}
.brand-icon{font-size:20px;color:var(--accent);filter:drop-shadow(0 0 8px var(--accent-glow))}
.sidebar-nav{flex:1;padding:16px 10px;overflow-y:auto;display:flex;flex-direction:column;gap:20px}
.nav-section{display:flex;flex-direction:column;gap:2px}
.nav-label{font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);padding:0 8px 8px}
.nav-item{
    display:flex;align-items:center;gap:10px;
    padding:9px 12px;border-radius:var(--r-sm);
    color:var(--text-2);font-size:13.5px;font-weight:500;
    transition:.18s var(--ease);position:relative;
}
.nav-item svg{width:16px;height:16px;flex-shrink:0}
.nav-item:hover{background:var(--bg-hover);color:var(--text-1)}
.nav-item.active{background:var(--accent-dim);color:var(--accent)}
.nav-item.active::before{
    content:'';position:absolute;left:0;top:25%;bottom:25%;
    width:3px;background:var(--accent);border-radius:0 3px 3px 0;
    box-shadow:0 0 10px var(--accent-glow);
}
.sidebar-footer{
    padding:14px 10px;border-top:1px solid var(--border);
    display:flex;flex-direction:column;gap:10px;
}
.theme-toggle{
    background:none;border:1px solid var(--border);cursor:pointer;
    color:var(--text-2);width:34px;height:34px;
    display:flex;align-items:center;justify-content:center;
    border-radius:var(--r-sm);transition:.18s var(--ease);align-self:flex-end;
}
.theme-toggle:hover{background:var(--bg-hover);color:var(--text-1);border-color:var(--border-hi)}
.theme-toggle svg{width:15px;height:15px}
[data-theme="dark"] .icon-moon{display:none}
[data-theme="light"] .icon-sun{display:none}
.user-info{
    display:flex;align-items:center;gap:9px;
    padding:8px;border-radius:var(--r-sm);
    background:var(--bg-elevated);border:1px solid var(--border);flex:1;min-width:0;
}
.user-avatar{
    width:30px;height:30px;border-radius:50%;flex-shrink:0;
    background:linear-gradient(135deg,var(--accent),#a78bfa);
    display:flex;align-items:center;justify-content:center;
    font-family:var(--font-h);font-weight:700;font-size:12px;color:#fff;
}
.user-details{display:flex;flex-direction:column;min-width:0}
.user-name{font-size:12.5px;font-weight:600;color:var(--text-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-email{font-size:11px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logout-btn{
    display:flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:var(--r-sm);
    color:var(--text-2);border:1px solid var(--border);transition:.18s var(--ease);flex-shrink:0;
}
.logout-btn svg{width:15px;height:15px}
.logout-btn:hover{background:var(--red-dim);color:var(--red);border-color:var(--red)}

/* ── Main content ── */
.main-content{flex:1;margin-left:var(--sidebar-w);min-height:100vh;background:var(--bg-base)}
.content-wrapper{padding:32px 36px;max-width:1200px}

/* ── Mobile header ── */
.mobile-header{
    display:none;padding:14px 18px;
    background:var(--bg-surface);border-bottom:1px solid var(--border);
    align-items:center;gap:12px;position:sticky;top:0;z-index:50;
}
.mobile-header button{background:none;border:none;cursor:pointer;color:var(--text-1);display:flex;align-items:center}
.mobile-header svg{width:22px;height:22px}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:99}

/* ── Page header ── */
.page-header{margin-bottom:30px}
.page-header h1{font-family:var(--font-h);font-size:27px;font-weight:700;letter-spacing:-.5px;line-height:1.2}
.page-header p{color:var(--text-2);margin-top:5px;font-size:13.5px}

/* ── Cards ── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);padding:22px;transition:.18s var(--ease)}
.card:hover{border-color:var(--border-hi)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.card-title{font-family:var(--font-h);font-size:15px;font-weight:600;color:var(--text-1)}

/* ── Stats grid ── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;margin-bottom:28px}
.stat-card{
    background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);
    padding:20px;display:flex;flex-direction:column;gap:14px;
    transition:.18s var(--ease);position:relative;overflow:hidden;
}
.stat-card::after{content:'';position:absolute;top:0;left:0;right:0;height:2px}
.stat-card.c-accent::after{background:var(--accent)}
.stat-card.c-green::after{background:var(--green)}
.stat-card.c-red::after{background:var(--red)}
.stat-card.c-blue::after{background:var(--blue)}
.stat-card:hover{border-color:var(--border-hi);transform:translateY(-1px);box-shadow:var(--shadow)}
.stat-icon{width:38px;height:38px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:17px}
.stat-card.c-accent .stat-icon{background:var(--accent-dim)}
.stat-card.c-green  .stat-icon{background:var(--green-dim)}
.stat-card.c-red    .stat-icon{background:var(--red-dim)}
.stat-card.c-blue   .stat-icon{background:var(--blue-dim)}
.stat-value{font-family:var(--font-h);font-size:29px;font-weight:700;letter-spacing:-1px;line-height:1}
.stat-label{font-size:11px;color:var(--text-3);font-weight:600;text-transform:uppercase;letter-spacing:.05em}

/* ── Forms ── */
.form-group{display:flex;flex-direction:column;gap:5px;margin-bottom:18px}
.form-group:last-child{margin-bottom:0}
label{font-size:12.5px;font-weight:600;color:var(--text-2);letter-spacing:.02em}
input[type=text],input[type=email],input[type=password],input[type=number],textarea,select{
    background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--r-sm);
    color:var(--text-1);font-family:var(--font-b);font-size:13.5px;
    padding:10px 13px;width:100%;transition:.18s var(--ease);outline:none;appearance:none;
}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
input::placeholder,textarea::placeholder{color:var(--text-3)}
textarea{resize:vertical;min-height:110px;line-height:1.6}
select{
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238686a0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 11px center;background-size:15px;padding-right:34px;cursor:pointer;
}
.form-hint{font-size:11.5px;color:var(--text-3);margin-top:3px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* ── Buttons ── */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:7px;
    padding:9px 18px;border-radius:var(--r-sm);
    font-family:var(--font-b);font-size:13.5px;font-weight:600;
    cursor:pointer;border:1px solid transparent;
    transition:.18s var(--ease);white-space:nowrap;letter-spacing:.01em;text-decoration:none;
}
.btn svg{width:15px;height:15px;flex-shrink:0}
.btn:disabled{opacity:.45;cursor:not-allowed;pointer-events:none}
.btn-primary{
    background:var(--accent);color:#fff;border-color:var(--accent);
    box-shadow:0 2px 14px rgba(124,111,255,.28);
}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:0 4px 22px rgba(124,111,255,.42);transform:translateY(-1px);color:#fff}
.btn-secondary{background:var(--bg-elevated);color:var(--text-1);border-color:var(--border)}
.btn-secondary:hover{background:var(--bg-hover);border-color:var(--border-hi);color:var(--text-1)}
.btn-danger{background:var(--red-dim);color:var(--red);border-color:var(--red)}
.btn-danger:hover{background:var(--red);color:#fff}
.btn-success{background:var(--green-dim);color:var(--green);border-color:var(--green)}
.btn-success:hover{background:var(--green);color:#fff}
.btn-sm{padding:5px 12px;font-size:12px}
.btn-lg{padding:12px 26px;font-size:14.5px}
.btn-icon{padding:7px;width:34px;height:34px}
.btn-group{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* ── Tables ── */
.table-wrapper{overflow-x:auto;border-radius:var(--r);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;font-size:13.5px}
thead tr{background:var(--bg-elevated);border-bottom:1px solid var(--border)}
th{padding:11px 15px;text-align:left;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-3);white-space:nowrap}
td{padding:12px 15px;border-bottom:1px solid var(--border);color:var(--text-1);vertical-align:middle}
tbody tr{background:var(--bg-card);transition:background .14s}
tbody tr:hover{background:var(--bg-hover)}
tbody tr:last-child td{border-bottom:none}

/* ── Badges ── */
.badge{
    display:inline-flex;align-items:center;gap:5px;
    padding:3px 9px;border-radius:999px;
    font-size:11px;font-weight:600;letter-spacing:.03em;
}
.badge::before{content:'';width:5px;height:5px;border-radius:50%}
.badge-success{background:var(--green-dim);color:var(--green)}.badge-success::before{background:var(--green)}
.badge-error  {background:var(--red-dim);  color:var(--red)  }.badge-error::before{background:var(--red)}
.badge-warning{background:var(--yellow-dim);color:var(--yellow)}.badge-warning::before{background:var(--yellow)}
.badge-info   {background:var(--blue-dim); color:var(--blue) }.badge-info::before{background:var(--blue)}

/* ── Progress ── */
.progress-wrap{background:var(--bg-elevated);border-radius:999px;height:7px;overflow:hidden}
.progress-bar{
    height:100%;border-radius:999px;
    background:linear-gradient(90deg,var(--accent),#a78bfa);
    transition:width .4s ease;position:relative;overflow:hidden;
}
.progress-bar::after{
    content:'';position:absolute;inset:0;
    background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);
    animation:shimmer 1.5s infinite;
}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}

/* ── Toasts ── */
.toast-container{position:fixed;top:18px;right:18px;z-index:9999;display:flex;flex-direction:column;gap:9px;pointer-events:none}
.toast{
    display:flex;align-items:center;gap:10px;padding:12px 16px;
    border-radius:var(--r);background:var(--bg-elevated);border:1px solid var(--border);
    box-shadow:var(--shadow-lg);pointer-events:all;max-width:340px;
    animation:toastIn .32s cubic-bezier(.34,1.56,.64,1) forwards;
    position:relative;overflow:hidden;
}
.toast::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px}
.toast.success::before{background:var(--green)}
.toast.error::before{background:var(--red)}
.toast.warning::before{background:var(--yellow)}
.toast.info::before{background:var(--blue)}
.toast-icon{font-size:16px;flex-shrink:0}
.toast-msg{font-size:13px;font-weight:500;color:var(--text-1);flex:1;line-height:1.4}
.toast-close{background:none;border:none;cursor:pointer;color:var(--text-3);font-size:15px;padding:0;line-height:1}
.toast-close:hover{color:var(--text-1)}
.toast.hiding{animation:toastOut .22s ease forwards}
@keyframes toastIn{from{opacity:0;transform:translateX(36px) scale(.95)}to{opacity:1;transform:none}}
@keyframes toastOut{from{opacity:1;transform:none}to{opacity:0;transform:translateX(36px) scale(.95)}}

/* ── Modal ── */
.modal-overlay{
    position:fixed;inset:0;background:rgba(0,0,0,.72);
    backdrop-filter:blur(4px);z-index:200;
    display:flex;align-items:center;justify-content:center;padding:16px;
    animation:fadeIn .18s ease;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{
    background:var(--bg-surface);border:1px solid var(--border-hi);border-radius:var(--r-lg);
    padding:26px;width:100%;max-width:540px;box-shadow:var(--shadow-lg);
    animation:slideUp .28s cubic-bezier(.34,1.56,.64,1);
}
@keyframes slideUp{from{opacity:0;transform:translateY(18px) scale(.97)}to{opacity:1;transform:none}}
.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.modal-title{font-family:var(--font-h);font-size:17px;font-weight:700;color:var(--text-1)}
.modal-close{
    background:none;border:none;cursor:pointer;color:var(--text-3);font-size:18px;
    width:30px;height:30px;display:flex;align-items:center;justify-content:center;
    border-radius:var(--r-sm);transition:.15s;
}
.modal-close:hover{background:var(--bg-hover);color:var(--text-1)}

/* ── Tabs ── */
.tabs{display:flex;gap:2px;background:var(--bg-elevated);padding:4px;border-radius:var(--r-sm);width:fit-content;margin-bottom:22px}
.tab-btn{
    padding:7px 15px;border:none;background:none;cursor:pointer;
    border-radius:6px;font-family:var(--font-b);font-size:13px;font-weight:500;
    color:var(--text-2);transition:.15s var(--ease);
}
.tab-btn.active{background:var(--bg-surface);color:var(--text-1);box-shadow:var(--shadow)}
.tab-btn:hover:not(.active){color:var(--text-1)}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* ── Upload zone ── */
.upload-zone{
    border:2px dashed var(--border);border-radius:var(--r);
    padding:30px;text-align:center;cursor:pointer;
    transition:.18s var(--ease);background:var(--bg-elevated);
}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--accent);background:var(--accent-dim)}
.upload-zone .uz-icon{font-size:30px;margin-bottom:10px}
.upload-zone p{color:var(--text-2);font-size:13px}
.upload-zone strong{color:var(--accent)}

/* ── Empty state ── */
.empty-state{text-align:center;padding:56px 20px;color:var(--text-3)}
.empty-state .icon{font-size:44px;margin-bottom:14px;opacity:.5}
.empty-state h3{font-family:var(--font-h);font-size:15px;color:var(--text-2);margin-bottom:6px}
.empty-state p{font-size:13px}

/* ── Send progress panel ── */
.send-progress{
    background:var(--bg-card);border:1px solid var(--border);
    border-radius:var(--r);padding:22px;margin-top:22px;display:none;
}
.send-progress.visible{display:block}
.progress-stats{display:flex;gap:22px;margin-top:14px;flex-wrap:wrap}
.progress-stat .val{font-family:var(--font-h);font-size:22px;font-weight:700;color:var(--text-1)}
.progress-stat .lbl{font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:.05em}
.send-log{
    margin-top:14px;max-height:190px;overflow-y:auto;
    font-family:'Courier New',monospace;font-size:11.5px;
    background:var(--bg-base);border:1px solid var(--border);border-radius:var(--r-sm);
    padding:10px;display:flex;flex-direction:column;gap:3px;
}
.log-line{display:flex;gap:8px;line-height:1.5}
.log-line .ts{color:var(--text-3);flex-shrink:0}
.log-line .ok{color:var(--green)}
.log-line .err{color:var(--red)}

/* ── Chip email input ── */
.chip-wrap{
    display:flex;flex-wrap:wrap;gap:5px;
    background:var(--bg-elevated);border:1px solid var(--border);
    border-radius:var(--r-sm);padding:7px;min-height:41px;cursor:text;
    transition:.18s var(--ease);
}
.chip-wrap:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.chip{
    display:inline-flex;align-items:center;gap:4px;
    padding:2px 8px 2px 9px;background:var(--accent-dim);
    color:var(--accent);border-radius:999px;font-size:12px;font-weight:500;
    border:1px solid rgba(124,111,255,.25);
}
.chip.invalid{background:var(--red-dim);color:var(--red);border-color:var(--red)}
.chip-rm{background:none;border:none;cursor:pointer;color:inherit;opacity:.7;padding:0;font-size:13px;line-height:1}
.chip-rm:hover{opacity:1}
.chip-input{
    border:none!important;background:none!important;outline:none!important;
    box-shadow:none!important;font-size:13px;color:var(--text-1);
    min-width:120px;padding:2px 4px;flex:1;
}

/* ── Login ── */
.login-page{
    min-height:100vh;display:flex;align-items:center;justify-content:center;
    background:var(--bg-base);padding:20px;position:relative;overflow:hidden;
}
.login-page::before{
    content:'';position:absolute;
    width:580px;height:580px;top:-200px;right:-200px;
    background:radial-gradient(circle,var(--accent-glow) 0%,transparent 70%);
    pointer-events:none;
}
.login-card{
    background:var(--bg-surface);border:1px solid var(--border-hi);
    border-radius:var(--r-lg);padding:42px 38px;width:100%;max-width:400px;
    box-shadow:var(--shadow-lg);animation:slideUp .45s cubic-bezier(.34,1.56,.64,1);
}
.login-brand{text-align:center;margin-bottom:34px}
.login-brand .bi{font-size:38px;display:block;margin-bottom:8px}
.login-brand h1{font-family:var(--font-h);font-size:25px;font-weight:800;letter-spacing:-.4px}
.login-brand p{color:var(--text-2);font-size:13px;margin-top:4px}
.login-err{background:var(--red-dim);border:1px solid var(--red);color:var(--red);padding:10px 14px;border-radius:var(--r-sm);font-size:13px;margin-bottom:18px}
hr.divider{border:none;border-top:1px solid var(--border);margin:22px 0}

/* ── Scrollbar ── */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border-hi);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--text-3)}

/* ── Responsive ── */
@media(max-width:768px){
    .sidebar{transform:translateX(-100%)}
    .sidebar.open{transform:translateX(0)}
    .sidebar-overlay.visible{display:block}
    .main-content{margin-left:0}
    .mobile-header{display:flex}
    .content-wrapper{padding:18px 14px}
    .form-row{grid-template-columns:1fr}
    .stats-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
    .stats-grid{grid-template-columns:1fr}
    .login-card{padding:26px 20px}
}