:root {
    --bg-color: #030303;
    --card-bg: rgba(15, 15, 15, 0.7);
    --border: rgba(255, 255, 255, 0.08);
    --accent: #00ffcc;
    --accent-glow: rgba(0, 255, 204, 0.4);
    --blue: #0066ff;
    --text: #ffffff;
    --text-dim: #999999;
    --green: #00ff66;
    --red: #ff3333;
    --purple: #bf00ff;
    --font: 'Outfit', sans-serif;
    --nav-height: 70px;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { width: 100%; overflow-x: hidden; }
body { font-family: var(--font); background: var(--bg-color); color: var(--text); line-height: 1.5; padding-bottom: env(safe-area-inset-bottom); }

/* 3D BG Canvas */
#canvas-container { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1; overflow: hidden; }
#canvas-container canvas { display: block; width: 100% !important; height: 100% !important; }

.dashboard-wrapper { width: 100%; max-width: 1200px; margin: 0 auto; padding: 20px; padding-bottom: calc(var(--nav-height) + 30px); }

/* prevent grid items from forcing horizontal overflow */
.card, .item-card { min-width: 0; }
.overview-grid, .charts-row, .system-grid, .inbound-grid, .client-container { min-width: 0; }

/* Header Styling */
header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 30px; }
.logo { font-size: 1.8rem; font-weight: 800; display: flex; align-items: center; gap: 10px; }
.logo span { color: var(--accent); }
.desktop-nav { display: flex; gap: 10px; background: rgba(255,255,255,0.03); padding: 5px; border-radius: 12px; }
.user-status { display: flex; align-items: center; gap: 10px; font-size: 0.9rem; background: rgba(0,0,0,0.4); padding: 8px 15px; border-radius: 20px; border:1px solid var(--border);}
.status-dot { width: 8px; height: 8px; border-radius: 50%; }
.status-dot.online { background: var(--green); box-shadow: 0 0 10px var(--green); }

/* Card System */
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: 20px; padding: 20px; backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px); transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.card h3 { font-size: 0.9rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 15px; display: flex; align-items: center; gap: 8px; }

/* Overview Grid */
.overview-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 20px; }
.data-card-hero { grid-column: span 2; display: flex; align-items: center; justify-content: space-between; padding: 30px; background: linear-gradient(135deg, rgba(0,255,204,0.05) 0%, rgba(0,102,255,0.05) 100%); }
.main-value { font-size: 3rem; font-weight: 800; margin: 10px 0; }
.unit { font-size: 1rem; color: var(--text-dim); }
.traffic-split { display: flex; gap: 30px; margin-top: 20px; }
.split-item .label { font-size: 0.7rem; color: var(--text-dim); display: block; margin-bottom: 5px; }
.split-item .val { font-size: 1.1rem; font-weight: 600; }
.split-item.down .val { color: var(--blue); }
.split-item.up .val { color: var(--accent); }
.donut-wrapper { width: 140px; height: 140px; }

.resource-card { position: relative; overflow: hidden; }
.percent-val { position: absolute; top: 20px; right: 20px; font-size: 1.5rem; font-weight: 800; color: var(--accent); max-width: 7ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mini-chart-container { height: 100px; margin-top: 10px; }

/* Tabs */
.tab-content { display: none; }
.tab-content.active { display: block; animation: tabFade 0.5s ease; }
@keyframes tabFade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Inbound/Client Grids (Mobile First) */
.inbound-grid, .client-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 15px; }
.item-card { background: rgba(30, 30, 30, 0.4); border: 1px solid var(--border); border-radius: 16px; padding: 15px; }
.item-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 15px; }
.status-badge { padding: 4px 10px; border-radius: 8px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase; }
.status-badge.active { background: rgba(0, 255, 102, 0.1); color: var(--green); }
.item-stats { display: flex; justify-content: space-between; border-top: 1px solid var(--border); padding-top: 15px; }
.stat-box .label { font-size: 0.7rem; color: var(--text-dim); display: block; }
.stat-box .val { font-size: 0.9rem; font-weight: 600; }

/* System Tab Custom */
.system-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.sys-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 15px; }
.sys-btn { background: rgba(255,255,255,0.05); border: 1px solid var(--border); color: #fff; padding: 12px; border-radius: 12px; font-weight: 600; cursor: pointer; transition: 0.2s; display: flex; align-items: center; justify-content: center; gap: 8px; }
.sys-btn:hover { background: var(--accent); color: #000; }
.sys-btn.danger:hover { background: var(--red); color: #fff; }
.info-row { display: flex; justify-content: space-between; margin-bottom: 10px; border-bottom: 1px solid var(--border); padding-bottom: 10px; }

/* Floating Action Button */
.fab { position: fixed; bottom: 90px; right: 25px; width: 60px; height: 60px; border-radius: 50%; background: var(--accent); color: #000; border: none; font-size: 1.5rem; display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 25px var(--accent-glow); z-index: 100; cursor: pointer; transition: 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
.fab:active { transform: scale(0.9) rotate(90deg); }

/* Mobile Navigation */
.mobile-nav { position: fixed; bottom: 0; left: 0; width: 100%; height: var(--nav-height); background: rgba(10, 10, 10, 0.8); backdrop-filter: blur(20px); border-top: 1px solid var(--border); display: none; justify-content: space-around; align-items: center; padding: 0 10px; z-index: 1000; }
.m-nav-btn { background: none; border: none; color: var(--text-dim); display: flex; flex-direction: column; align-items: center; gap: 5px; font-size: 0.7rem; font-family: var(--font); font-weight: 600; transition: 0.3s; width: 25%; }
.m-nav-btn i { font-size: 1.2rem; }
.m-nav-btn.active { color: var(--accent); }
.m-nav-btn.active i { transform: translateY(-5px); transition: 0.3s; }

/* Modal Overlay */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.8); backdrop-filter: blur(10px); z-index: 2000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.active { display: flex; }
.modal-card { background: #111; border: 1px solid var(--border); border-radius: 24px; padding: 30px; width: 100%; max-width: 450px; animation: modalIn 0.3s ease; }
@keyframes modalIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
.input-group { margin-bottom: 20px; }
.input-group label { display: block; font-size: 0.8rem; color: var(--text-dim); margin-bottom: 8px; font-weight: 600; }
.input-group input, .input-group select { width: 100%; background: #1a1a1a; border: 1px solid var(--border); padding: 12px; border-radius: 12px; color: #fff; font-family: var(--font); }
.modal-footer { display: flex; gap: 10px; margin-top: 20px; }
.accent-btn { flex: 2; background: var(--accent); border: none; padding: 15px; border-radius: 12px; color: #000; font-weight: 800; cursor: pointer; }
.close-btn { flex: 1; background: rgba(255,255,255,0.05); border: 1px solid var(--border); color: #fff; border-radius: 12px; cursor: pointer; }

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .desktop-nav { display: none; }
    .mobile-nav { display: flex; }
    .logo { font-size: 1.5rem; }

    /* Full-width container on mobile/tablet */
    .dashboard-wrapper { max-width: none; width: 100%; padding: 12px; padding-bottom: calc(var(--nav-height) + 30px + env(safe-area-inset-bottom)); }

    /* Force single-column layout to remove right-side empty space */
    .overview-grid { grid-template-columns: 1fr; gap: 14px; }
    .charts-row { display: block; }

    /* Prevent other grids from overflowing horizontally */
    .inbound-grid, .client-container, .system-grid { grid-template-columns: 1fr; }

    .data-card-hero { grid-column: span 1; flex-direction: column; text-align: center; gap: 16px; padding: 20px; }
    .traffic-split { justify-content: center; gap: 18px; }
    header { margin-bottom: 18px; }
    .main-value { font-size: 2.0rem; }
    .donut-wrapper { width: 120px; height: 120px; }
    .fab { bottom: calc(90px + env(safe-area-inset-bottom)); right: 18px; }
}

/* Extra small phones */
@media (max-width: 420px) {
    .dashboard-wrapper { padding: 10px; }
    .card { padding: 14px; border-radius: 18px; }
    .overview-grid { grid-template-columns: 1fr; gap: 12px; }

    /* Compact Global Traffic */
    .data-card-hero { padding: 16px; }
    .data-card-hero .main-value { font-size: 1.7rem; margin: 6px 0; }
    .traffic-split { flex-direction: row; gap: 12px; margin-top: 10px; }
    .split-item .label { font-size: 0.65rem; margin-bottom: 2px; }
    .split-item .val { font-size: 0.95rem; }
    .donut-wrapper { width: 104px; height: 104px; }

    .percent-val { top: 14px; right: 14px; font-size: 1.15rem; }
    .mini-chart-container { height: 72px; }
    .user-status { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}

/* Animations */
.nav-btn { background: none; border: none; color: var(--text-dim); padding: 10px 15px; border-radius: 8px; cursor: pointer; font-weight: 600; font-family: var(--font); transition: 0.2s; }
.nav-btn.active { color: var(--accent); background: rgba(0, 255, 204, 0.05); }

/* Toasts */
#toast-container { position: fixed; top: 30px; left: 50%; transform: translateX(-50%); z-index: 5000; pointer-events: none; }
.toast { background: #111; border: 1px solid var(--accent); padding: 12px 25px; border-radius: 50px; box-shadow: 0 10px 40px rgba(0,0,0,0.5); display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 0.9rem; margin-bottom: 10px; animation: toastIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
@keyframes toastIn { from { transform: translateY(-30px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }