:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark-bg: #0a0a0a;
    --dark-surface: #111111;
    --dark-card: #1a1a1a;
    --dark-border: #2a2a2a;
    --dark-text: #ffffff;
    --dark-text-muted: #a1a1aa;
    --light-bg: #fafafa;
    --light-surface: #ffffff;
    --light-card: #ffffff;
    --light-border: #e5e7eb;
    --light-text: #111827;
    --light-text-muted: #6b7280;
}

* {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background: var(--light-bg);
    color: var(--light-text);
    font-size: 14px;
    line-height: 1.5;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.dark-mode {
    background: var(--dark-bg) !important;
    color: var(--dark-text) !important;
}

.dark-mode .navbar {
    background: var(--dark-surface) !important;
    border-color: var(--dark-border) !important;
}

.dark-mode .card {
    background: var(--dark-card) !important;
    border-color: var(--dark-border) !important;
    color: var(--dark-text) !important;
}

.dark-mode .form-control {
    background: var(--dark-surface) !important;
    border-color: var(--dark-border) !important;
    color: var(--dark-text) !important;
}

.dark-mode .form-control:focus {
    background: var(--dark-surface) !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1) !important;
}

.dark-mode .btn-outline-secondary {
    color: var(--dark-text-muted) !important;
    border-color: var(--dark-border) !important;
}

.dark-mode .btn-outline-secondary:hover {
    background: var(--dark-surface) !important;
    color: var(--dark-text) !important;
}

.dark-mode .text-muted {
    color: var(--dark-text-muted) !important;
}

.dark-mode .bg-light {
    background: var(--dark-surface) !important;
}

.dark-mode .border-bottom {
    border-color: var(--dark-border) !important;
}

.dark-mode .dropdown-menu {
    background: var(--dark-card) !important;
    border-color: var(--dark-border) !important;
}

.dark-mode .dropdown-item {
    color: var(--dark-text) !important;
}

.dark-mode .dropdown-item:hover {
    background: var(--dark-surface) !important;
}

.navbar {
    background: var(--light-surface) !important;
    border-bottom: 1px solid var(--light-border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.75rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.25rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card {
    background: var(--light-card);
    border: 1px solid var(--light-border);
    border-radius: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: 10px;
    font-weight: 500;
    font-size: 13px;
    padding: 10px 20px;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.form-control {
    border-radius: 10px;
    border: 1px solid var(--light-border);
    font-size: 13px;
    padding: 12px 16px;
    transition: all 0.2s ease;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.status-online { background: var(--success); }
.status-maintenance { background: var(--warning); }
.status-offline { background: var(--danger); }

.host-item {
    padding: 12px 16px;
    border-radius: 10px;
    background: var(--light-surface);
    border: 1px solid var(--light-border);
    transition: all 0.2s ease;
    margin-bottom: 8px;
}

.host-item:hover {
    background: var(--light-bg);
    transform: translateX(4px);
}

.dark-mode .host-item {
    background: var(--dark-surface);
    border-color: var(--dark-border);
}

.dark-mode .host-item:hover {
    background: var(--dark-card);
}

.premium-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    position: relative;
    overflow: hidden;
}

.premium-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: translate(30px, -30px);
}

.update-item {
    padding: 16px;
    border-radius: 10px;
    background: var(--light-surface);
    border-left: 3px solid var(--primary);
    margin-bottom: 12px;
    transition: all 0.2s ease;
}

.update-item:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.update-item.feature { border-left-color: var(--success); }
.update-item.fix { border-left-color: var(--warning); }
.update-item.security { border-left-color: var(--danger); }

.dark-mode .update-item {
    background: var(--dark-surface);
}

.icon-badge {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 16px;
    margin-bottom: 16px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.stat-item {
    text-align: center;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}

.stat-number {
    font-size: 18px;
    font-weight: 700;
    color: #fbbf24;
}

.stat-label {
    font-size: 11px;
    opacity: 0.8;
    margin-top: 4px;
}
.hero-section {
  background: linear-gradient(135deg,#1e3a8a,#9333ea);
  position:relative; color:#fff; overflow:hidden;
}
.hero-section::before {
  content:""; position:absolute; inset:0;
  background-image: linear-gradient(transparent 95%,rgba(255,255,255,.05) 95%),
                    linear-gradient(90deg,transparent 95%,rgba(255,255,255,.05) 95%);
  background-size: 40px 40px;
}



.hero-content {
    position: relative;
    z-index: 1;
}

.loading-spinner {
    display: none;
}

.loading .loading-spinner {
    display: inline-block;
}

.loading .btn-text {
    display: none;
}

.feature-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
}

.dark-mode .feature-badge {
    background: rgba(16, 185, 129, 0.2);
}

@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .card {
        margin-bottom: 20px;
    }
}

.btn-sm {
    font-size: 12px;
    padding: 6px 12px;
}

.badge {
    font-size: 10px;
    padding: 4px 8px;
}

.small {
    font-size: 12px;
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 1.5rem; font-weight: 600; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 500; }
h5 { font-size: 1rem; font-weight: 500; }
h6 { font-size: 0.9rem; font-weight: 500; }

.lead {
    font-size: 1.1rem;
    font-weight: 400;
    opacity: 0.9;
}

/* Premium hero background + subtle design elements */
.hero--pro{
position:relative; overflow:hidden; color:#fff; padding:72px 0;
background:
radial-gradient(1200px 480px at 85% -10%, rgba(99,102,241,.35), transparent 60%),
radial-gradient(900px 360px at 10% 110%, rgba(20,184,166,.30), transparent 65%),
linear-gradient(135deg, #0f172a 0%, #111827 55%, #1f2937 100%);
}
.hero--pro::before{
content:""; position:absolute; inset:-20%;
background: conic-gradient(from 120deg at 40% 50%,
rgba(78,70,229,.18), rgba(6,182,212,.12), rgba(244,63,94,.10), rgba(78,70,229,.18));
filter: blur(90px); opacity:.55; pointer-events:none;
}
.hero--pro::after{
content:""; position:absolute; inset:0; pointer-events:none; opacity:.10;
background-image:
radial-gradient(#ffffff 1px, transparent 1px),
radial-gradient(#ffffff 1px, transparent 1px);
background-size: 26px 26px, 26px 26px;
background-position: 0 0, 13px 13px; /* subtle dotted lattice */
mix-blend-mode: screen;
}

/* Trust grid spacing on mobile */
.trust-grid .fas{opacity:.9}
@media (max-width: 768px){
.hero--pro{ padding:56px 0; }
}
/* HOW IT WORKS section */
.howit-section{
position: relative;
overflow: hidden;
background:
radial-gradient(800px 300px at 85% -10%, rgba(99,102,241,.18), transparent 60%),
radial-gradient(600px 240px at 10% 110%, rgba(6,182,212,.16), transparent 65%),
linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
}
.dark-mode .howit-section{
background:
radial-gradient(800px 300px at 85% -10%, rgba(99,102,241,.22), transparent 60%),
radial-gradient(600px 240px at 10% 110%, rgba(6,182,212,.20), transparent 65%),
linear-gradient(180deg, #0a0a0a 0%, #111111 100%);
}

/* step cards */
.howit-card{
border: 1px solid var(--light-border);
border-radius: 16px;
background: var(--light-card);
padding: 22px 18px;
box-shadow: 0 4px 18px rgba(0,0,0,.05);
transition: transform .25s ease, box-shadow .25s ease;
}
.howit-card:hover{
transform: translateY(-4px);
box-shadow: 0 10px 30px rgba(0,0,0,.10);
}
.dark-mode .howit-card{
background: var(--dark-card);
border-color: var(--dark-border);
}

/* step icons with number badge */
.howit-icon{
width: 64px; height: 64px; border-radius: 16px;
margin: 0 auto 10px; position: relative;
display: grid; place-items: center;
background: linear-gradient(135deg, var(--primary), var(--secondary));
color:#fff; font-size: 22px;
}
.howit-icon > span{
position: absolute; top:-10px; right:-10px;
width: 26px; height: 26px; border-radius: 50%;
background:#fff; color:#111; display:grid; place-items:center;
font-weight: 700; font-size: 12px; box-shadow: 0 4px 12px rgba(0,0,0,.15);
}
.dark-mode .howit-icon > span{ background:#1a1a1a; color:#fff; }

/* connectors between steps (desktop) */
.howit-steps{ padding-top: 8px; padding-bottom: 8px; }
.howit-connector{
position: absolute; top: 64px; left: 0; right: 0; height: 2px;
background: linear-gradient(90deg, rgba(99,102,241,.3), rgba(6,182,212,.3));
z-index: 0;
}
.howit-steps .col-md-4{ position: relative; z-index: 1; }

/* fancy list bullets */
.fancy-list .list-group-item{
background: transparent; border: 0; padding-left: 0; padding-right: 0; margin-bottom: 10px;
}
.fancy-list .bullet{
width: 36px; height: 36px; border-radius: 10px;
display: grid; place-items: center; margin-right: 12px;
background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff;
flex: 0 0 auto;
}

/* mock window */
.mock-wrap{ position: relative; }
.mock-window{
border-radius: 14px; border: 1px solid var(--light-border);
background: var(--light-card); overflow: hidden;
box-shadow: 0 12px 40px rgba(0,0,0,.08);
}
.dark-mode .mock-window{ background: var(--dark-card); border-color: var(--dark-border); }
.mock-dots{ display: flex; gap: 6px; padding: 10px 12px; border-bottom: 1px solid var(--light-border); }
.dark-mode .mock-dots{ border-color: var(--dark-border); }
.mock-dots span{ width: 8px; height: 8px; border-radius: 50%; background:#e5e7eb; }
.dark-mode .mock-dots span{ background:#2a2a2a; }
.mock-body{ padding: 14px; }
.mini-stats{ display:flex; gap:14px; font-size: 12px; color: var(--light-text-muted); }
.dark-mode .mini-stats{ color: var(--dark-text-muted); }

/* subtle glow under mock */
.mock-glow{
position: absolute; inset: auto 0 -30px 0; height: 60px; filter: blur(24px);
background: radial-gradient(200px 30px at 50% 50%, rgba(99,102,241,.35), transparent 70%),
      radial-gradient(200px 30px at 30% 50%, rgba(6,182,212,.30), transparent 70%);
opacity: .8; pointer-events: none;
}

/* accordion polish */
.accordion-button{ font-weight: 600; }
.accordion-button:focus{ box-shadow: none; }
/* HOSTS list */
.host-list{
display: grid;
grid-template-columns: 1fr 1fr;
gap: 10px 14px;
}
@media (max-width: 768px){
.host-list{ grid-template-columns: 1fr; }
}
.host-row{
display:flex; align-items:center; justify-content:space-between;
border:1px solid var(--light-border);
background: var(--light-surface);
border-radius:12px; padding:10px 12px;
transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.host-row:hover{
transform: translateY(-2px);
box-shadow: 0 10px 24px rgba(0,0,0,.06);
border-color: rgba(99,102,241,.35);
}
.dark-mode .host-row{
background: var(--dark-surface);
border-color: var(--dark-border);
}
.host-brand{
display:flex; align-items:center; gap:10px; min-width:0;
position: relative;
}
.host-logo{
width:28px; height:28px; border-radius:6px; object-fit:contain; display:block;
background:#fff;
}
.dark-mode .host-logo{ background:#111; }
.host-brand.no-logo .host-logo{ display:none; }
.host-monogram{
display:none;
width:28px; height:28px; border-radius:6px;
background:linear-gradient(135deg, var(--primary), var(--secondary));
color:#fff; font-weight:700; font-size:12px; display:grid; place-items:center;
}
.host-brand.no-logo .host-monogram{ display:grid; }
.host-text{ min-width:0; }
.host-name{
font-weight:600; font-size:13px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.host-sub{
font-size:11px; color: var(--light-text-muted);
}
.dark-mode .host-sub{ color: var(--dark-text-muted); }

/* status chip */
.status-chip{
font-size:11px; font-weight:600; padding:6px 10px; border-radius:999px;
display:inline-flex; align-items:center; white-space:nowrap;
border:1px solid transparent;
}
.status-chip--ok{
background: rgba(16,185,129,.12);
color: #059669;
border-color: rgba(16,185,129,.25);
}
.status-chip--maint{
background: rgba(245,158,11,.12);
color: #b45309;
border-color: rgba(245,158,11,.25);
}
.status-chip--down{
background: rgba(239,68,68,.12);
color: #b91c1c;
border-color: rgba(239,68,68,.25);
}
/* Modal polish */
.modal-content { border-radius: 16px; }
.dark-mode .modal-content { background: var(--dark-card); color: var(--dark-text); }
.dark-mode .modal-header, .dark-mode .modal-footer { border-color: var(--dark-border) !important; }

/* Controls */
.filter-btn.active { box-shadow: inset 0 0 0 1px currentColor; }

/* Hosts grid cards */
.hosts-grid{
display:grid;
grid-template-columns: repeat(4, minmax(0, 1fr));
gap:14px;
}
@media (max-width: 1200px){ .hosts-grid{ grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px){ .hosts-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px){ .hosts-grid{ grid-template-columns: 1fr; } }

.host-card{
border:1px solid var(--light-border);
background: var(--light-surface);
border-radius:14px; padding:12px;
display:flex; align-items:center; gap:10px;
transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.host-card:hover{
transform: translateY(-2px);
border-color: rgba(99,102,241,.35);
box-shadow: 0 10px 24px rgba(0,0,0,.06);
}
.dark-mode .host-card{ background: var(--dark-surface); border-color: var(--dark-border); }

.host-card .logo{
width:34px; height:34px; border-radius:8px; object-fit:contain; background:#fff; flex:0 0 auto;
}
.dark-mode .host-card .logo{ background:#111; }
.host-card .mono{
display:none; width:34px; height:34px; border-radius:8px;
background:linear-gradient(135deg, var(--primary), var(--secondary));
color:#fff; font-weight:700; font-size:12px; display:grid; place-items:center;
}
.host-card.no-logo .logo{ display:none; }
.host-card.no-logo .mono{ display:grid; }

.host-card .meta{ min-width:0; }
.host-card .name{ font-weight:600; font-size:13px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.host-card .sub{ font-size:11px; color: var(--light-text-muted); }
.dark-mode .host-card .sub{ color: var(--dark-text-muted); }

.host-card .chip{
margin-left:auto; font-size:11px; font-weight:600; padding:6px 10px; border-radius:999px;
border:1px solid transparent; white-space:nowrap; display:inline-flex; align-items:center;
}
.chip--ok{ background: rgba(16,185,129,.12); color: #059669; border-color: rgba(16,185,129,.25); }
.chip--maint{ background: rgba(245,158,11,.12); color:#b45309; border-color: rgba(245,158,11,.25); }
.chip--down{ background: rgba(239,68,68,.12); color:#b91c1c; border-color: rgba(239,68,68,.25); }