:root{--navy:#0b2d45;--blue:#1769e0;--green:#178a59;--orange:#c77816;--red:#b54040;--gold:#9a6a10;--ink:#172537;--muted:#718195;--line:#e0e8ef;--bg:#f4f7fa;--white:#fff;--shadow:0 18px 45px rgba(20,48,71,.08)}
*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}a{text-decoration:none;color:inherit}button,input,select,textarea{font:inherit}.admin-shell{min-height:100vh;display:flex}.sidebar{position:fixed;inset:0 auto 0 0;width:255px;background:#0a263a;color:#d9e7ef;padding:20px 15px;display:flex;flex-direction:column;z-index:50}.admin-brand{display:flex;align-items:center;gap:11px;padding:7px 7px 20px}.admin-brand>span{width:43px;height:43px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,#195b87,#2879e5);color:#fff;font-weight:900}.admin-brand div{display:flex;flex-direction:column}.admin-brand strong{color:#fff;font-size:13px}.admin-brand small{color:#7fa0b7;font-size:10px;margin-top:3px}.sidebar nav{display:flex;flex-direction:column;gap:5px}.sidebar nav a,.sidebar-bottom a{padding:11px 12px;border-radius:11px;font-weight:730;font-size:13px;color:#aac0cf;display:flex;align-items:center;justify-content:space-between}.sidebar nav a:hover,.sidebar nav a.active{background:rgba(255,255,255,.09);color:#fff}.nav-count{min-width:21px;height:21px;border-radius:999px;display:grid;place-items:center;background:#e34f4f;color:#fff;font-size:10px;padding:0 5px}.sidebar-bottom{margin-top:auto;padding-top:12px;border-top:1px solid rgba(255,255,255,.09)}.admin-main{margin-left:255px;width:calc(100% - 255px);min-width:0}.admin-topbar{height:66px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:flex-end;padding:0 28px;position:sticky;top:0;z-index:30}.admin-topbar>div{display:flex;align-items:center;gap:12px}.admin-topbar strong{font-size:13px}.admin-topbar span{font-size:11px;color:var(--muted)}.menu-btn{display:none;border:0;background:#eef3f7;width:40px;height:40px;border-radius:10px;color:var(--navy);font-size:20px}.admin-content{padding:28px;max-width:1500px;margin:auto}.flash{padding:12px 14px;border-radius:11px;font-weight:700;font-size:12px;margin-bottom:18px;transition:.3s}.flash.success{background:#e9f9f0;color:#176b44}.flash.error{background:#fff0f0;color:#993535}.flash-hide{opacity:0;transform:translateY(-5px)}
.welcome-card{background:linear-gradient(135deg,#0b2d45,#174f73);color:#fff;border-radius:23px;padding:28px 30px;display:flex;align-items:center;justify-content:space-between;gap:25px;box-shadow:var(--shadow);margin-bottom:20px}.welcome-card h1{margin:5px 0 6px;font-size:30px}.welcome-card p{margin:0;color:#c6d8e4}.mini-label{display:block;color:#8fcaff;font-size:10px;font-weight:900;letter-spacing:.13em}.welcome-actions{display:flex;gap:10px;flex-wrap:wrap}.admin-primary,.admin-secondary{border:0;border-radius:11px;padding:11px 15px;font-weight:850;font-size:12px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}.admin-primary{background:#1769e0;color:#fff}.admin-secondary{background:#eef3f8;color:#244058}.welcome-card .admin-secondary{background:rgba(255,255,255,.11);color:#fff;border:1px solid rgba(255,255,255,.14)}.inline{width:auto}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}.stat{background:#fff;border:1px solid var(--line);border-radius:17px;padding:19px;box-shadow:0 8px 26px rgba(22,49,72,.04)}.stat span{display:block;color:#7e8e9f;font-size:11px}.stat strong{display:block;font-size:31px;color:var(--navy);margin:6px 0 2px}.stat small{color:#92a0ae;font-size:10px}.stat.emphasis{border-color:#bcd7fb;background:linear-gradient(145deg,#fff,#f0f6ff)}.panel{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 28px rgba(23,48,70,.04)}.panel-head{padding:19px 20px;border-bottom:1px solid #edf1f4;display:flex;align-items:center;justify-content:space-between;gap:15px}.panel-head h2{margin:0;font-size:17px;color:var(--navy)}.panel-head p{margin:4px 0 0;color:#8795a4;font-size:11px}.panel-head>a{color:var(--blue);font-size:11px;font-weight:850}.dashboard-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:18px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:700px}th,td{text-align:left;padding:13px 16px;border-bottom:1px solid #edf1f4;font-size:12px;vertical-align:middle}th{color:#8291a0;font-size:10px;text-transform:uppercase;letter-spacing:.06em;background:#fbfcfd}tbody tr:last-child td{border-bottom:0}.table-name{font-weight:800;color:#1d3549}.table-sub{display:block;color:#8b99a7;font-size:10px;margin-top:3px}.table-small-strong{font-size:11px;color:#364b5e}.empty-cell,.empty-admin{text-align:center;color:#8493a1;padding:28px}.status{display:inline-flex;align-items:center;padding:5px 8px;border-radius:999px;font-size:9px;font-weight:850;white-space:nowrap}.status.on{background:#e8f8ef;color:#176e45}.status.off{background:#eef2f5;color:#687886}.status.info{background:#eaf3ff;color:#246ac2}.status.warn{background:#fff3dc;color:#9b6713}.status.gold{background:#fff2d5;color:#966511}.availability-admin{display:inline-flex;padding:5px 8px;border-radius:999px;font-size:9px;font-weight:850}.availability-admin.open{background:#e8f8ef;color:#176e45}.availability-admin.limited{background:#fff3dc;color:#9b6713}.availability-admin.full{background:#fff0f0;color:#9f3d3d}.mini-request-list>a{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:14px 18px;border-bottom:1px solid #edf1f4}.mini-request-list>a:last-child{border-bottom:0}.mini-request-list strong{display:block;font-size:12px}.mini-request-list span{display:block;color:#81909f;font-size:10px;margin-top:3px}.mini-request-list>a>div:last-child{text-align:right}.mini-request-list small{display:block;color:#9ba7b3;font-size:9px;margin-top:5px}
.page-actions{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:16px}.search-admin{display:flex;gap:8px}.search-admin input{width:min(360px,60vw)}input,select,textarea{border:1px solid #d9e3eb;background:#fff;border-radius:10px;padding:10px 11px;outline:none;color:#23394c}input:focus,select:focus,textarea:focus{border-color:#80afe9;box-shadow:0 0 0 3px rgba(23,105,224,.08)}.search-admin button{border:0;background:#eaf2fd;color:#2367be;border-radius:10px;padding:10px 13px;font-weight:800}.teacher-admin-cell{display:flex;align-items:center;gap:10px}.teacher-admin-cell img,.teacher-admin-cell>span{width:40px;height:40px;border-radius:11px;object-fit:cover}.teacher-admin-cell>span{display:grid;place-items:center;background:#e9f1f7;color:#617f95;font-weight:900}.teacher-admin-cell strong{display:block;font-size:12px}.teacher-admin-cell small{display:block;color:#8493a1;font-size:10px;margin-top:2px}.row-actions{display:flex;gap:5px;align-items:center;flex-wrap:wrap}.row-actions form{display:inline}.row-actions a,.row-actions button{border:0;background:#f0f4f7;color:#365068;border-radius:8px;padding:6px 8px;font-size:9px;font-weight:800;cursor:pointer}.row-actions button.danger,.danger-btn{background:#fff0f0;color:#a44444;border:0;border-radius:8px;padding:8px 10px;font-weight:800;font-size:10px;cursor:pointer}
.admin-form-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:18px}.form-side{display:flex;flex-direction:column;gap:18px}.form-panel{padding:20px}.form-panel .panel-head{padding:0 0 16px;margin-bottom:16px}.form-panel h2{margin:0 0 14px;font-size:16px;color:var(--navy)}.form-panel label{display:block;margin:12px 0}.form-panel label>span{display:block;font-size:11px;font-weight:800;color:#53677a;margin-bottom:6px}.form-panel label>span em{font-style:normal;color:#9aa7b3;font-weight:600;font-size:9px;margin-left:4px}.form-panel input,.form-panel select,.form-panel textarea{width:100%}.form-panel textarea{min-height:130px;resize:vertical}.field-grid{display:grid;gap:12px}.field-grid.two{grid-template-columns:1fr 1fr}.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.check{display:flex!important;align-items:center;gap:7px;background:#f7f9fb;border:1px solid #e4ebf1;padding:8px;border-radius:9px;margin:0!important}.check input{width:auto!important;accent-color:#1769e0}.check span{margin:0!important;font-size:10px!important}.toggle-row{display:flex;gap:8px;flex-wrap:wrap;margin:11px 0}.toggle-row.stacked{display:grid;grid-template-columns:1fr}.help{display:block;color:#8997a5;font-size:10px;line-height:1.6;margin-top:7px}.image-preview{width:100%;max-height:360px;object-fit:cover;border-radius:14px;margin-bottom:12px;border:1px solid var(--line)}.sticky-save{position:sticky;bottom:14px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:14px;padding:10px;display:flex;align-items:center;justify-content:space-between}.sticky-save>a{font-size:11px;color:#768797}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.settings-grid .full{grid-column:1/-1}.logo-preview{width:110px;height:110px;object-fit:contain;border:1px solid var(--line);border-radius:16px;background:#fff;padding:8px}.logo-placeholder{width:96px;height:96px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(145deg,#0d3652,#1c70d9);color:#fff;font-size:25px;font-weight:900}.banner-preview{width:100%;max-height:290px;object-fit:cover;border-radius:15px;border:1px solid var(--line);margin-bottom:12px}.telegram-help{background:#f5f8fb;border:1px solid #e3eaf0;border-radius:11px;padding:12px;color:#617386;font-size:10px;line-height:1.65}.telegram-help code{background:#e9eef3;padding:2px 5px;border-radius:5px}.save-bar{position:sticky;bottom:0;background:rgba(244,247,250,.94);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:12px 0;margin-top:18px;display:flex;justify-content:flex-end;gap:9px;z-index:10}
.filter-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}.filter-tabs a{padding:9px 12px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:10px;font-weight:850;color:#5d7082}.filter-tabs a.active{background:#0f3956;color:#fff;border-color:#0f3956}.filter-tabs span{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;background:rgba(23,105,224,.1);border-radius:999px;margin-left:4px}.filter-tabs a.active span{background:rgba(255,255,255,.15)}.consult-admin-list{display:flex;flex-direction:column;gap:12px}.consult-admin-card{display:grid;grid-template-columns:1fr auto;gap:16px;padding:18px}.consult-admin-card.new{border-left:4px solid #e1a12f}.consult-admin-card.contacted{border-left:4px solid #4c8bd7}.consult-admin-card.done{border-left:4px solid #4c9a6b}.consult-admin-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.consult-admin-head>div{display:flex;align-items:center;gap:8px}.consult-admin-head h3{margin:0;color:var(--navy);font-size:16px}.request-id{font-size:9px;color:#8896a4;background:#eef2f5;border-radius:7px;padding:4px 6px}.consult-admin-info{display:flex;gap:18px;flex-wrap:wrap;margin-top:12px}.consult-admin-info p{margin:0;min-width:110px}.consult-admin-info span{display:block;color:#8a98a6;font-size:9px}.consult-admin-info strong{display:block;color:#3b5063;font-size:11px;margin-top:3px}.consult-admin-info a{color:#1769e0}.consult-note{margin-top:12px;padding:11px;background:#f7f9fb;border-radius:10px}.consult-note span{color:#8a98a6;font-size:9px}.consult-note p{margin:4px 0 0;color:#4f6476;font-size:11px}.consult-admin-actions{display:flex;align-items:end;gap:8px}.consult-admin-actions form:first-child{display:flex;align-items:center;gap:7px}.consult-admin-actions select{font-size:10px;padding:8px}.empty-admin{padding:35px}.empty-admin strong{color:var(--navy)}.empty-admin p{color:#82909e}
@media(max-width:1100px){.stats-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.admin-form-grid{grid-template-columns:1fr}.form-side{display:grid;grid-template-columns:1fr 1fr}.form-side .sticky-save{grid-column:1/-1}.consult-admin-card{grid-template-columns:1fr}.consult-admin-actions{justify-content:flex-start}.settings-grid{grid-template-columns:1fr}.settings-grid .full{grid-column:auto}}
@media(max-width:800px){.sidebar{transform:translateX(-100%);transition:.25s;width:255px}.menu-open .sidebar{transform:translateX(0);box-shadow:20px 0 50px rgba(0,0,0,.2)}.admin-main{margin-left:0;width:100%}.admin-topbar{justify-content:space-between;padding:0 16px}.menu-btn{display:block}.admin-content{padding:16px}.welcome-card{display:block;padding:22px}.welcome-actions{margin-top:18px}.stats-grid{grid-template-columns:1fr 1fr}.form-side{grid-template-columns:1fr}.field-grid.two{grid-template-columns:1fr}.check-grid{grid-template-columns:repeat(2,1fr)}.page-actions{align-items:stretch}.search-admin{flex:1}.search-admin input{width:100%}.consult-admin-actions{display:block}.consult-admin-actions form{margin-top:8px}.consult-admin-actions form:first-child{display:flex}.settings-grid{gap:12px}}
@media(max-width:520px){.stats-grid{grid-template-columns:1fr}.welcome-card h1{font-size:25px}.page-actions{display:block}.page-actions>a{margin-top:9px;width:100%}.search-admin{width:100%}.check-grid{grid-template-columns:1fr 1fr}.consult-admin-info{display:grid;grid-template-columns:1fr 1fr;gap:11px}.consult-admin-info p{min-width:0}.consult-admin-actions form:first-child{display:grid;grid-template-columns:1fr auto}.save-bar{padding-inline:4px}.save-bar button{flex:1}.form-panel{padding:16px}.admin-content{padding:12px}}

/* ===== Banner & contact admin v3 ===== */
.banner-global-controls{display:grid;grid-template-columns:1fr 1fr 180px;gap:12px;align-items:end;margin-bottom:18px;padding:14px;border:1px solid #e2eaf1;background:#f8fafc;border-radius:14px}
.banner-global-controls>label{margin:0!important}
.banner-slot-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.banner-slot{border:1px solid #e1e9f0;border-radius:15px;padding:14px;background:#fbfcfd}
.banner-slot-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.banner-slot-head strong{color:var(--navy);font-size:13px}
.compact-check{padding:6px 8px!important}.banner-slot-preview{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:11px;border:1px solid #dde7ef;background:#eef3f7}.banner-empty{width:100%;aspect-ratio:16/7;display:grid;place-items:center;border:1px dashed #cad8e3;border-radius:11px;background:#f4f7f9;color:#8b9aa7;font-size:11px}
.danger-check{background:#fff5f5!important;border-color:#f1d4d4!important}.danger-check span{color:#a64a4a!important}
.contact-setting-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.contact-setting-card{display:grid;grid-template-columns:74px 1fr;gap:13px;align-items:start;padding:14px;border:1px solid #e1e9f0;border-radius:14px;background:#fbfcfd}.contact-setting-fields label{margin-top:0!important}.contact-preview{width:66px;height:66px;border-radius:50%;display:grid;place-items:center;background:#0e4f89;color:#fff;border:9px solid #bed5ec;font-weight:900;font-size:21px;box-shadow:0 8px 18px rgba(20,70,110,.12)}.zalo-preview span{display:grid;place-items:center;width:39px;height:29px;border-radius:50%;background:#fff;color:#155890;font-size:11px}.messenger-preview{font-size:31px}.phone-preview{font-size:26px}
@media(max-width:1000px){.banner-global-controls{grid-template-columns:1fr 1fr}.banner-global-controls>label:last-child{grid-column:1/-1}.contact-setting-grid{grid-template-columns:1fr}.banner-slot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){.banner-global-controls{grid-template-columns:1fr}.banner-global-controls>label:last-child{grid-column:auto}.banner-slot-grid{grid-template-columns:1fr}.contact-setting-card{grid-template-columns:64px 1fr}.contact-preview{width:58px;height:58px;border-width:8px}}