/* =====================================================
   TeleScheduler — Premium Dark UI
   ===================================================== */
:root {
  --bg:        #07080f;
  --bg-2:      #0d0f1c;
  --bg-3:      #131629;
  --surface:   rgba(255,255,255,0.04);
  --surface-h: rgba(255,255,255,0.07);
  --border:    rgba(255,255,255,0.08);
  --border-h:  rgba(255,255,255,0.16);
  --primary:   #6366f1;
  --primary-h: #818cf8;
  --accent:    #0ea5e9;
  --success:   #10b981;
  --warning:   #f59e0b;
  --danger:    #ef4444;
  --text:      #e8eaf0;
  --text-muted:#7b80a0;
  --sidebar-w: 240px;
  --radius:    14px;
  --radius-sm: 8px;
  --glow:      0 0 40px rgba(99,102,241,0.15);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
}

/* --- Background particles --- */
.bg-particles{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.particle{
  position:absolute;
  border-radius:50%;
  opacity:.12;
  animation:float linear infinite;
}
.particle:nth-child(1){width:300px;height:300px;background:radial-gradient(circle,#6366f1,transparent);top:-5%;left:10%;animation-duration:25s}
.particle:nth-child(2){width:200px;height:200px;background:radial-gradient(circle,#0ea5e9,transparent);top:40%;right:5%;animation-duration:30s;animation-delay:-8s}
.particle:nth-child(3){width:150px;height:150px;background:radial-gradient(circle,#8b5cf6,transparent);bottom:10%;left:30%;animation-duration:22s;animation-delay:-5s}
.particle:nth-child(4){width:100px;height:100px;background:radial-gradient(circle,#10b981,transparent);top:20%;left:60%;animation-duration:35s;animation-delay:-12s}
.particle:nth-child(5){width:250px;height:250px;background:radial-gradient(circle,#f59e0b,transparent);bottom:30%;right:20%;animation-duration:28s;animation-delay:-3s;opacity:.07}
.particle:nth-child(6){width:180px;height:180px;background:radial-gradient(circle,#6366f1,transparent);top:70%;left:5%;animation-duration:32s;animation-delay:-18s}
@keyframes float{
  0%{transform:translate(0,0) scale(1)}
  33%{transform:translate(30px,-20px) scale(1.05)}
  66%{transform:translate(-20px,15px) scale(0.97)}
  100%{transform:translate(0,0) scale(1)}
}

/* --- Sidebar --- */
.sidebar{
  position:fixed;top:0;left:0;height:100vh;width:var(--sidebar-w);
  background:linear-gradient(180deg,rgba(13,15,28,.95) 0%,rgba(7,8,15,.98) 100%);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;z-index:100;
  backdrop-filter:blur(20px);
  transition:transform .3s ease;
}
.sidebar-logo{
  display:flex;align-items:center;gap:12px;
  padding:28px 20px 24px;
  border-bottom:1px solid var(--border);
}
.logo-icon{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:grid;place-items:center;font-size:18px;
  box-shadow:0 0 20px rgba(99,102,241,.4);
}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.3px}
.sidebar-nav{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:4px}
.nav-item{
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:var(--radius-sm);
  color:var(--text-muted);text-decoration:none;font-size:14px;font-weight:500;
  transition:all .2s ease;position:relative;
}
.nav-item:hover{background:var(--surface);color:var(--text)}
.nav-item.active{
  background:linear-gradient(135deg,rgba(99,102,241,.2),rgba(14,165,233,.1));
  color:#fff;
  border:1px solid rgba(99,102,241,.3);
}
.nav-icon{font-size:17px}
.badge{
  margin-left:auto;background:var(--danger);color:#fff;
  font-size:11px;font-weight:700;border-radius:99px;padding:2px 7px;
}
.sidebar-footer{
  padding:16px 20px;border-top:1px solid var(--border);
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--text-muted);
}
.status-dot{width:8px;height:8px;border-radius:50%;background:var(--danger);transition:background .3s}
.status-dot.online{background:var(--success);box-shadow:0 0 8px var(--success)}

/* Mobile header */
.mobile-header{
  display:none;
  position:fixed;top:0;left:0;right:0;z-index:99;
  background:rgba(7,8,15,.9);backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  padding:14px 20px;
  align-items:center;gap:14px;
}
.icon-btn{
  background:var(--surface);border:1px solid var(--border);
  color:var(--text);border-radius:8px;padding:8px 12px;
  cursor:pointer;font-size:16px;transition:background .2s;
}
.icon-btn:hover{background:var(--surface-h)}

/* --- Main content --- */
.main-content{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  position:relative;z-index:1;
  padding:32px;
}

/* --- Pages --- */
.page{display:none;animation:fadein .3s ease}
.page.active{display:block}
@keyframes fadein{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

.page-header{
  display:flex;align-items:flex-start;justify-content:space-between;
  margin-bottom:28px;flex-wrap:wrap;gap:12px;
}
.page-header h1{font-size:26px;font-weight:800;letter-spacing:-.3px}
.subtitle{color:var(--text-muted);font-size:14px;margin-top:4px}

/* --- Stats grid --- */
.stats-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));
  gap:16px;margin-bottom:28px;
}
.stat-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;
  display:flex;align-items:center;gap:16px;
  transition:all .25s ease;cursor:default;
  backdrop-filter:blur(10px);
}
.stat-card:hover{border-color:var(--border-h);transform:translateY(-3px);box-shadow:var(--glow)}
.stat-icon{
  width:48px;height:48px;border-radius:12px;
  display:grid;place-items:center;font-size:20px;flex-shrink:0;
}
.stat-value{font-size:28px;font-weight:800;line-height:1}
.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px;font-weight:500}

/* --- Cards --- */
.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px;
  backdrop-filter:blur(10px);
  transition:border-color .2s;
}
.card:hover{border-color:var(--border-h)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-header h2{font-size:16px;font-weight:700}
.recent-card{margin-top:0}

/* --- Two col layout --- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.two-col h2{font-size:16px;font-weight:700;margin-bottom:16px}

/* --- Buttons --- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 20px;border-radius:var(--radius-sm);font-size:14px;
  font-weight:600;cursor:pointer;border:none;transition:all .2s ease;
  font-family:'Inter',sans-serif;text-decoration:none;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#818cf8);
  color:#fff;box-shadow:0 4px 20px rgba(99,102,241,.35);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(99,102,241,.5)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--surface);border:1px solid var(--border);color:var(--text);
}
.btn-ghost:hover{background:var(--surface-h);border-color:var(--border-h)}
.btn-danger{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.3);color:var(--danger)}
.btn-danger:hover{background:rgba(239,68,68,.25)}
.btn-success{background:rgba(16,185,129,.15);border:1px solid rgba(16,185,129,.3);color:var(--success)}
.btn-success:hover{background:rgba(16,185,129,.25)}
.btn-large{padding:14px 24px;font-size:16px;border-radius:var(--radius)}
.w-full{width:100%}

/* --- Forms --- */
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:7px;text-transform:uppercase;letter-spacing:.5px}
.input{
  width:100%;background:rgba(255,255,255,.04);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  color:var(--text);padding:11px 14px;font-size:14px;
  font-family:'Inter',sans-serif;transition:all .2s;outline:none;
}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.15)}
.textarea{resize:vertical;min-height:100px}
.input-hint{font-size:12px;color:var(--text-muted);margin-top:5px;display:block}
.input-row{display:flex;gap:8px}
.input-row .input{flex:1}
.form-message{font-size:13px;min-height:20px;margin-top:8px;border-radius:6px;padding:0 4px}
.form-message.success{color:var(--success)}
.form-message.error{color:var(--danger)}
.mb-4{margin-bottom:16px}
.mt-2{margin-top:8px}
.text-muted{color:var(--text-muted)}
.small{font-size:12px}

/* --- Contacts --- */
.contacts-list{display:flex;flex-direction:column;gap:8px;max-height:420px;overflow-y:auto}
.contact-item{
  display:flex;align-items:center;gap:12px;
  padding:12px 14px;background:rgba(255,255,255,.03);
  border:1px solid var(--border);border-radius:var(--radius-sm);
  transition:all .2s;
}
.contact-item:hover{background:var(--surface-h)}
.contact-avatar{
  width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  display:grid;place-items:center;font-weight:700;font-size:14px;flex-shrink:0;
}
.contact-details{flex:1;min-width:0}
.contact-name{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.contact-id{font-size:11px;color:var(--text-muted);font-family:monospace}
.btn-icon{
  background:none;border:none;color:var(--text-muted);cursor:pointer;
  padding:6px;border-radius:6px;font-size:15px;transition:all .2s;
}
.btn-icon:hover{background:rgba(239,68,68,.15);color:var(--danger)}
.badge-count{
  background:var(--primary);color:#fff;
  font-size:12px;font-weight:700;border-radius:99px;padding:2px 10px;
}

/* --- Recipients in compose --- */
.recipients-container{
  display:flex;flex-wrap:wrap;gap:8px;
  min-height:44px;padding:8px;
  background:rgba(255,255,255,.03);border:1px solid var(--border);
  border-radius:var(--radius-sm);
}
.recipient-chip{
  display:flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:99px;font-size:13px;cursor:pointer;
  border:1px solid var(--border);background:rgba(255,255,255,.05);
  transition:all .2s;user-select:none;
}
.recipient-chip:hover{border-color:var(--primary);color:var(--primary)}
.recipient-chip.selected{
  background:rgba(99,102,241,.2);border-color:var(--primary);color:var(--primary-h);
}
.chip-check{font-size:11px}

/* --- Drop zone --- */
.drop-zone{
  border:2px dashed var(--border);border-radius:var(--radius);
  transition:all .2s;position:relative;overflow:hidden;
}
.drop-zone.drag-over{border-color:var(--primary);background:rgba(99,102,241,.08)}
.drop-zone-inner{
  padding:28px;text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.drop-icon{font-size:32px;opacity:.5}
.drop-preview{padding:14px}
.preview-info{
  display:flex;align-items:center;gap:10px;
  font-size:13px;font-weight:500;
}
.preview-info span:nth-child(1){font-size:20px}
.preview-info #preview-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.btn-remove{
  background:rgba(239,68,68,.15);border:none;color:var(--danger);
  border-radius:50%;width:24px;height:24px;cursor:pointer;font-size:13px;
  display:grid;place-items:center;
}
.upload-progress{height:4px;background:rgba(255,255,255,.1);border-radius:2px;margin-top:10px;overflow:hidden}
.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),var(--accent));width:0;transition:width .2s;border-radius:2px}

/* --- Schedule toggle --- */
.schedule-toggle{display:flex;gap:8px;background:rgba(255,255,255,.04);border-radius:var(--radius-sm);padding:4px}
.toggle-btn{
  flex:1;padding:9px;border-radius:6px;border:none;
  color:var(--text-muted);font-size:13px;font-weight:600;
  cursor:pointer;background:none;transition:all .2s;font-family:'Inter',sans-serif;
}
.toggle-btn.active{background:var(--primary);color:#fff;box-shadow:0 2px 12px rgba(99,102,241,.4)}

/* --- Compose grid --- */
.compose-grid{display:grid;grid-template-columns:1fr auto;gap:20px}
.compose-card{max-width:600px}
.preview-card{width:280px}

/* Phone mockup */
.phone-mock{
  padding:20px;background:rgba(255,255,255,.02);
  border-radius:var(--radius);border:1px solid var(--border);
}
.phone-screen{
  background:linear-gradient(180deg,#1a1a2e 0%,#16213e 100%);
  border-radius:12px;padding:16px;min-height:200px;
}
.chat-bubble{
  background:linear-gradient(135deg,var(--primary),#818cf8);
  border-radius:16px 16px 4px 16px;
  padding:12px 14px;max-width:90%;margin-left:auto;
  position:relative;
  box-shadow:0 4px 20px rgba(99,102,241,.3);
}
.preview-text-content{font-size:14px;line-height:1.5;word-break:break-word;white-space:pre-wrap}
.msg-time{font-size:10px;opacity:.7;display:block;text-align:right;margin-top:5px}
#preview-media-thumb{margin-bottom:6px}
#preview-media-thumb img,#preview-media-thumb video{
  width:100%;border-radius:8px;max-height:120px;object-fit:cover;
}

/* --- Message list / Queue --- */
.message-list{display:flex;flex-direction:column;gap:10px}
.msg-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 20px;
  display:grid;grid-template-columns:1fr auto;gap:12px;
  align-items:start;transition:all .2s;
}
.msg-card:hover{border-color:var(--border-h)}
.msg-card-body h3{font-size:14px;font-weight:600;margin-bottom:4px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:500px}
.msg-meta{font-size:12px;color:var(--text-muted);display:flex;gap:14px;flex-wrap:wrap;margin-top:6px}
.msg-actions{display:flex;gap:8px;align-items:center}
.status-pill{
  display:inline-flex;align-items:center;gap:5px;
  font-size:11px;font-weight:700;border-radius:99px;padding:3px 10px;
  text-transform:uppercase;letter-spacing:.5px;
}
.status-pending{background:rgba(245,158,11,.15);color:var(--warning);border:1px solid rgba(245,158,11,.3)}
.status-sent{background:rgba(16,185,129,.15);color:var(--success);border:1px solid rgba(16,185,129,.3)}
.status-failed{background:rgba(239,68,68,.15);color:var(--danger);border:1px solid rgba(239,68,68,.3)}
.status-cancelled{background:rgba(123,128,160,.15);color:var(--text-muted);border:1px solid rgba(123,128,160,.3)}

/* --- Filter pills --- */
.filter-pills{display:flex;gap:6px;flex-wrap:wrap}
.pill{
  padding:6px 14px;border-radius:99px;border:1px solid var(--border);
  background:none;color:var(--text-muted);font-size:13px;font-weight:600;
  cursor:pointer;transition:all .2s;font-family:'Inter',sans-serif;
}
.pill.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pill:hover:not(.active){border-color:var(--border-h);color:var(--text)}

/* --- Pagination --- */
.pagination{display:flex;gap:8px;justify-content:center;margin-top:20px}

/* --- Settings --- */
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.settings-grid h2{font-size:16px;font-weight:700;margin-bottom:12px}
.token-banner{
  padding:10px 14px;border-radius:var(--radius-sm);
  font-size:13px;font-weight:500;margin-bottom:14px;
}
.token-banner.success{background:rgba(16,185,129,.15);color:var(--success);border:1px solid rgba(16,185,129,.3)}
.token-banner.warning{background:rgba(245,158,11,.15);color:var(--warning);border:1px solid rgba(245,158,11,.3)}
.about-list{list-style:none;padding:0;color:var(--text-muted);font-size:13px;display:flex;flex-direction:column;gap:8px;margin-top:8px}
.api-link{margin-top:16px}

/* --- Empty state --- */
.empty-state{
  text-align:center;color:var(--text-muted);
  font-size:14px;padding:32px 16px;
}
.empty-state.small{padding:8px}

/* --- Toast --- */
.toast{
  position:fixed;bottom:28px;right:28px;z-index:9999;
  background:var(--bg-3);border:1px solid var(--border-h);
  border-radius:var(--radius-sm);padding:14px 18px;
  font-size:14px;font-weight:500;
  transform:translateY(80px);opacity:0;
  transition:all .3s cubic-bezier(.34,1.56,.64,1);
  max-width:340px;
  backdrop-filter:blur(20px);
}
.toast.show{transform:translateY(0);opacity:1}
.toast.success{border-color:rgba(16,185,129,.4);color:var(--success)}
.toast.error{border-color:rgba(239,68,68,.4);color:var(--danger)}
.toast.info{border-color:rgba(99,102,241,.4);color:var(--primary-h)}

/* --- Link --- */
.link{color:var(--primary);text-decoration:none;font-weight:500}
.link:hover{text-decoration:underline}

/* === Responsive === */
@media(max-width:1100px){
  .compose-grid{grid-template-columns:1fr}
  .preview-card{width:100%;max-width:400px}
  .settings-grid{grid-template-columns:1fr}
}
@media(max-width:860px){
  .two-col{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .mobile-header{display:flex}
  .main-content{margin-left:0;padding:80px 16px 16px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .page-header{flex-direction:column;align-items:flex-start}
  .filter-pills{margin-top:8px}
}

/* Inbox card styles */
.inbox-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    transition: all .2s;
}

.inbox-card:hover {
    border-color: var(--border-h);
    transform: translateX(2px)
}

.inbox-card.unread {
    border-left: 3px solid var(--primary);
    background: rgba(99, 102, 241, .06)
}

.inbox-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 17px;
}

.inbox-body {
    flex: 1;
    min-width: 0
}

.inbox-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px
}

.inbox-sender {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px
}

.inbox-sender strong {
    font-weight: 700
}

.sender-username {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500
}

.inbox-time {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0
}

.inbox-chat-id {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 5px
}

.inbox-chat-id code {
    background: rgba(255, 255, 255, .07);
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 11px;
    letter-spacing: .3px
}

.inbox-text {
    font-size: 13px;
    color: var(--text);
    word-break: break-word
}

.inbox-actions {
    flex-shrink: 0;
    display: flex;
    align-items: center
}

.unread-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
    box-shadow: 0 0 6px var(--primary);
}

.media-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 99px;
    background: rgba(14, 165, 233, .15);
    color: var(--accent);
    border: 1px solid rgba(14, 165, 233, .3);
    margin-right: 6px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 6px
}
/* ── Schedule Mode Picker ── */
.schedule-mode-row{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.smode-btn{
  flex:1;min-width:90px;padding:9px 12px;border-radius:8px;
  background:var(--bg-3);border:1px solid var(--border);
  color:var(--text-muted);font-size:13px;font-weight:500;cursor:pointer;
  transition:all .18s;white-space:nowrap;
}
.smode-btn:hover{border-color:var(--border-h);color:var(--text)}
.smode-btn.active{
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-color:transparent;color:#fff;font-weight:600;
  box-shadow:0 0 12px rgba(99,102,241,.35);
}
.schedule-panel{
  background:var(--bg-3);border:1px solid var(--border);
  border-radius:8px;padding:14px 16px;margin-top:4px;
  animation:fadeIn .2s ease;
}
/* Countdown */
.countdown-presets{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.preset-btn{
  padding:7px 14px;border-radius:7px;background:var(--bg-2);
  border:1px solid var(--border);color:var(--text-muted);
  font-size:13px;font-weight:500;cursor:pointer;transition:all .15s;
}
.preset-btn:hover{border-color:var(--border-h);color:var(--text)}
.preset-btn.active{
  background:var(--primary);border-color:var(--primary);
  color:#fff;font-weight:600;
}
.countdown-custom{display:flex;align-items:center;gap:10px;margin-top:4px}
.countdown-custom .input{flex:1}
#countdown-preview{white-space:nowrap;font-size:12px;color:var(--accent)}
/* Date/Time picker */
.cairo-label{font-size:12px;font-weight:600;color:var(--accent);margin-bottom:10px;letter-spacing:.5px}
.datetime-row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.datetime-row .form-group{flex:1;min-width:90px}
.small-label{font-size:11px;color:var(--text-muted);font-weight:500}
.select-input{appearance:none;cursor:pointer;text-align:center}
.schedule-confirm-time{
  margin-top:10px;font-size:12px;color:var(--success);font-weight:600;
  padding:6px 10px;background:rgba(16,185,129,.08);border-radius:6px;
}
.datetime-cairo-wrap{}
.mb-0{margin-bottom:0!important}