@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ── MODERN DARK THEME (dark-only) ───────────────── */
:root {
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --bg-body:         #0a0e17;
  --bg-card:         #121826;
  --bg-card-2:       #161d2e;
  --bg-sidebar:      #080b12;
  --bg-input:        #0e141f;
  --bg-table-alt:    #0e141f;
  --bg-table-hover:  #1a2334;

  /* Cyan / teal accent — modern, no purple */
  --accent:          #22d3ee;
  --accent-hover:    #67e8f9;
  --accent-light:    #67e8f9;
  --accent-2:        #06b6d4;
  --accent-grad:     linear-gradient(135deg, #22d3ee, #0891b2);
  --accent-subtle:   rgba(34,211,238,0.12);

  --text-primary:    #f1f5f9;
  --text-secondary:  #94a3b8;
  --text-muted:      #5b6b82;

  --border:          rgba(148,163,184,0.12);
  --border-strong:   rgba(148,163,184,0.22);
  --border-accent:   rgba(34,211,238,0.45);

  --success:         #34d399;
  --success-bg:      rgba(52,211,153,0.12);
  --warning:         #fbbf24;
  --warning-bg:      rgba(251,191,36,0.12);
  --danger:          #fb7185;
  --danger-bg:       rgba(251,113,133,0.12);
  --danger-border:   rgba(251,113,133,0.30);

  --shadow:          0 18px 44px -18px rgba(0,0,0,0.8);
  --shadow-sm:       0 1px 3px rgba(0,0,0,0.5);
  --glow:            0 0 0 4px rgba(34,211,238,0.16);

  --sidebar-w:       256px;
  --header-h:        64px;
  --r:               16px;
  --r-sm:            10px;
  --ease:            .18s cubic-bezier(.4,0,.2,1);
}

/* ── RESET ───────────────────────────────────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:
    radial-gradient(1200px 600px at 100% -10%, rgba(34,211,238,0.06), transparent 60%),
    radial-gradient(900px 500px at -10% 0%, rgba(8,145,178,0.07), transparent 55%),
    var(--bg-body);
  background-attachment:fixed;
  color:var(--text-primary);
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ── LAYOUT ──────────────────────────────────────── */
.app-layout{display:flex;min-height:100vh;}
.main-content{margin-left:var(--sidebar-w);flex:1;display:flex;flex-direction:column;min-width:0;}

/* ── SIDEBAR ─────────────────────────────────────── */
.sidebar{width:var(--sidebar-w);background:var(--bg-sidebar);border-right:1px solid var(--border);position:fixed;top:0;left:0;height:100vh;display:flex;flex-direction:column;z-index:100;transition:transform .3s ease;}
.sidebar-header{padding:22px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;}
.sidebar-logo{width:38px;height:38px;background:var(--accent-grad);border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;box-shadow:0 6px 18px -4px rgba(34,211,238,0.55);}
.sidebar-brand{font-size:18px;font-weight:700;color:#f8fafc;letter-spacing:-.3px;}
.sidebar-brand span{color:var(--accent);}
.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto;}
.nav-label{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:1.1px;color:var(--text-muted);padding:0 10px;margin:16px 0 6px;}
.nav-label:first-child{margin-top:4px;}
.nav-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:var(--r-sm);cursor:pointer;color:var(--text-secondary);font-size:13.5px;font-weight:500;transition:all var(--ease);margin-bottom:2px;text-decoration:none;position:relative;}
.nav-item:hover{background:rgba(148,163,184,0.08);color:var(--text-primary);}
.nav-item.active{background:rgba(34,211,238,0.12);color:#fff;}
.nav-item.active::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:20px;background:var(--accent-grad);border-radius:0 4px 4px 0;}
.nav-icon{font-size:15px;flex-shrink:0;width:18px;text-align:center;}
.sidebar-footer{padding:16px;border-top:1px solid var(--border);}
.sidebar-tagline{font-size:11.5px;color:var(--text-muted);line-height:1.5;}
.sidebar-tagline strong{color:var(--text-secondary);font-weight:600;}

/* ── TOP HEADER ──────────────────────────────────── */
.top-header{height:var(--header-h);background:rgba(10,14,23,0.7);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:50;}
.page-info h1{font-size:18px;font-weight:700;letter-spacing:-.4px;}
.page-info p{font-size:12px;color:var(--text-secondary);margin-top:1px;}
.header-right{display:flex;align-items:center;gap:10px;}
.tag{font-size:11.5px;font-weight:600;color:var(--accent);background:var(--accent-subtle);border:1px solid var(--border-accent);padding:5px 12px;border-radius:20px;white-space:nowrap;}
.hamburger{display:none;background:none;border:none;cursor:pointer;color:var(--text-primary);font-size:20px;padding:4px;}

/* ── BUTTONS ─────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:7px;padding:9px 17px;border-radius:var(--r-sm);font-size:13.5px;font-weight:600;cursor:pointer;border:none;transition:all var(--ease);font-family:var(--font);white-space:nowrap;}
.btn-primary{background:var(--accent-grad);color:#04252e;box-shadow:0 8px 20px -8px rgba(34,211,238,0.7);}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 12px 26px -8px rgba(34,211,238,0.8);}
.btn-primary:active{transform:translateY(0);}
.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-outline{background:var(--bg-card-2);color:var(--text-primary);border:1px solid var(--border-strong);padding:8px 15px;font-size:13px;}
.btn-outline:hover{background:var(--accent-subtle);border-color:var(--border-accent);color:var(--accent);}

/* ── PAGE BODY ───────────────────────────────────── */
.page-body{padding:26px 28px;flex:1;max-width:1500px;width:100%;}

/* ── KPI CARDS ───────────────────────────────────── */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px;}
.kpi-card{background:linear-gradient(180deg,var(--bg-card-2),var(--bg-card));border:1px solid var(--border);border-radius:var(--r);padding:22px;position:relative;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
.kpi-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#22d3ee,#0891b2);}
.kpi-card.kpi-success::before{background:linear-gradient(90deg,#34d399,#10b981);}
.kpi-card.kpi-warning::before{background:linear-gradient(90deg,#fbbf24,#f59e0b);}
.kpi-card.kpi-danger::before{background:linear-gradient(90deg,#fb7185,#f43f5e);}
.kpi-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--border-strong);}
.kpi-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:14px;background:var(--accent-subtle);}
.kpi-card.kpi-success .kpi-icon{background:var(--success-bg);}
.kpi-card.kpi-warning .kpi-icon{background:var(--warning-bg);}
.kpi-card.kpi-danger .kpi-icon{background:var(--danger-bg);}
.kpi-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.7px;color:var(--text-secondary);margin-bottom:8px;}
.kpi-value{font-size:26px;font-weight:800;letter-spacing:-.6px;line-height:1;margin-bottom:8px;color:var(--text-primary);}
.kpi-sub{font-size:11.5px;color:var(--text-secondary);}
.kpi-badge{display:inline-flex;align-items:center;gap:3px;font-size:11px;font-weight:700;padding:2px 8px;border-radius:20px;}
.kpi-badge.up{background:var(--danger-bg);color:var(--danger);}
.kpi-badge.down{background:var(--success-bg);color:var(--success);}
.kpi-badge.neutral{background:var(--bg-input);color:var(--text-secondary);}

/* ── CARDS ───────────────────────────────────────── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow var(--ease),border-color var(--ease);}
.card:hover{box-shadow:var(--shadow);border-color:var(--border-strong);}
.card-header{padding:18px 22px 15px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);gap:12px;}
.card-title{font-size:14.5px;font-weight:700;display:flex;align-items:center;gap:9px;letter-spacing:-.2px;}
.card-icon{width:28px;height:28px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px;background:var(--accent-subtle);}
.card-actions{display:flex;align-items:center;gap:8px;}
.card-body{padding:20px 22px;}
.card-body.no-pad{padding:0;}

/* ── GRID LAYOUTS ────────────────────────────────── */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:24px;}
.section-gap{margin-bottom:24px;}
.chart-box{height:340px;}

/* ── BILL CHARTS SECTION HEADER ──────────────────── */
.bill-charts-header{margin-bottom:16px;}
.section-title{font-size:18px;font-weight:800;letter-spacing:-.4px;color:var(--text-primary);margin-bottom:4px;}
.section-sub{font-size:12.5px;color:var(--text-secondary);}
.chart-badge{display:inline-flex;align-items:center;padding:3px 11px;border-radius:20px;font-size:11px;font-weight:700;letter-spacing:.3px;}
.chart-badge-current{background:var(--accent-subtle);color:var(--accent);border:1px solid var(--border-accent);}
.chart-badge-5month{background:var(--success-bg);color:var(--success);border:1px solid rgba(52,211,153,0.30);}

/* ── CLOUD PROVIDER BADGES ───────────────────────── */
.provider-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 13px;border-radius:20px;font-size:11.5px;font-weight:700;letter-spacing:.4px;margin-bottom:8px;}
.provider-aws{background:rgba(255,153,0,0.12);color:#ffa726;border:1px solid rgba(255,153,0,0.28);}
.provider-gcp{background:rgba(66,133,244,0.12);color:#69a0f8;border:1px solid rgba(66,133,244,0.28);}
.provider-azure{background:rgba(0,145,213,0.12);color:#4aa3ff;border:1px solid rgba(0,145,213,0.28);}

/* ── TOOLBAR ─────────────────────────────────────── */
.toolbar{padding:14px 22px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);flex-wrap:wrap;}
.search-wrap{flex:1;min-width:200px;position:relative;}
.search-ico{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text-muted);font-size:13px;pointer-events:none;}
.search-input{width:100%;padding:9px 12px 9px 34px;background:var(--bg-input);border:1px solid var(--border-strong);border-radius:var(--r-sm);color:var(--text-primary);font-size:13px;font-family:var(--font);outline:none;transition:border var(--ease),box-shadow var(--ease);}
.search-input:focus{border-color:var(--accent);box-shadow:var(--glow);}
.search-input::placeholder{color:var(--text-muted);}
.filter-select{padding:9px 30px 9px 12px;background:var(--bg-input);border:1px solid var(--border-strong);border-radius:var(--r-sm);color:var(--text-primary);font-size:13px;font-family:var(--font);cursor:pointer;outline:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;transition:border var(--ease),box-shadow var(--ease);}
.filter-select:focus{border-color:var(--accent);box-shadow:var(--glow);}
.filter-select option{background:var(--bg-card);color:var(--text-primary);}

/* ── TABLES ──────────────────────────────────────── */
.table-scroll{overflow-x:auto;max-height:460px;overflow-y:auto;}
table{width:100%;border-collapse:collapse;font-size:13px;}
thead{position:sticky;top:0;z-index:10;}
th{background:var(--bg-input);color:var(--text-secondary);font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.6px;padding:12px 16px;text-align:left;border-bottom:1px solid var(--border-strong);white-space:nowrap;cursor:pointer;user-select:none;transition:color var(--ease);}
th:hover{color:var(--text-primary);}
th.sort-asc::after{content:' ↑';color:var(--accent);}
th.sort-desc::after{content:' ↓';color:var(--accent);}
td{padding:12px 16px;border-bottom:1px solid var(--border);vertical-align:middle;}
tbody tr{transition:background var(--ease);}
tbody tr:nth-child(even){background:var(--bg-table-alt);}
tbody tr:hover{background:var(--bg-table-hover);}
tbody tr:last-child td{border-bottom:none;}
.text-right{text-align:right;}

/* ── BADGES ──────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:8px;font-size:11px;font-weight:600;}
.badge-acct{background:var(--accent-subtle);color:var(--accent);border:1px solid var(--border-accent);}
.badge-region{background:rgba(148,163,184,0.12);color:#cbd5e1;border:1px solid var(--border-strong);}
.badge-ccy{background:var(--bg-input);color:var(--text-secondary);border:1px solid var(--border-strong);font-size:10px;}
.badge-alert{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger-border);font-size:10px;}

/* ── AMOUNT ──────────────────────────────────────── */
.amount{font-weight:700;font-variant-numeric:tabular-nums;}
.amt-high{color:var(--danger);}
.amt-med{color:var(--warning);}
.amt-low{color:var(--success);}

/* ── PROGRESS BAR ────────────────────────────────── */
.prog-wrap{width:100%;background:var(--bg-input);border:1px solid var(--border);border-radius:6px;height:7px;overflow:hidden;margin-top:5px;}
.prog-fill{height:100%;border-radius:6px;background:var(--accent-grad);transition:width .8s cubic-bezier(.4,0,.2,1);}

/* ── PAGINATION ──────────────────────────────────── */
.pagination{display:flex;align-items:center;justify-content:space-between;padding:14px 22px;border-top:1px solid var(--border);flex-wrap:wrap;gap:10px;}
.pag-info{font-size:12px;color:var(--text-secondary);}
.pag-controls{display:flex;align-items:center;gap:4px;}
.pag-btn{min-width:32px;height:32px;padding:0 8px;border-radius:8px;border:1px solid var(--border-strong);background:var(--bg-card-2);color:var(--text-secondary);font-size:12px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--ease);font-family:var(--font);}
.pag-btn:hover:not(:disabled):not(.active){border-color:var(--border-accent);color:var(--accent);background:var(--accent-subtle);}
.pag-btn.active{background:var(--accent-grad);border-color:transparent;color:#04252e;box-shadow:0 4px 12px -4px rgba(34,211,238,0.7);}
.pag-btn:disabled{opacity:.4;cursor:not-allowed;}

/* ── TOASTS ──────────────────────────────────────── */
.toast-wrap{position:fixed;top:18px;right:18px;z-index:9999;display:flex;flex-direction:column;gap:10px;pointer-events:none;}
.toast{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:var(--r-sm);background:var(--bg-card-2);border:1px solid var(--border-strong);box-shadow:var(--shadow);min-width:290px;max-width:400px;pointer-events:all;animation:toastIn .3s ease forwards;}
.toast.toast-success{border-left:4px solid var(--success);}
.toast.toast-error{border-left:4px solid var(--danger);}
.toast.toast-info{border-left:4px solid var(--accent);}
.toast-ico{font-size:17px;flex-shrink:0;margin-top:1px;}
.toast-body{flex:1;}
.toast-title{font-size:13px;font-weight:700;margin-bottom:2px;}
.toast-msg{font-size:12px;color:var(--text-secondary);}
.toast-x{cursor:pointer;color:var(--text-muted);font-size:13px;background:none;border:none;font-family:var(--font);flex-shrink:0;transition:color var(--ease);}
.toast-x:hover{color:var(--text-primary);}
@keyframes toastIn{from{transform:translateX(110%);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes toastOut{from{transform:translateX(0);opacity:1}to{transform:translateX(110%);opacity:0}}
.toast.leaving{animation:toastOut .3s ease forwards;}

/* ── SPINNER ─────────────────────────────────────── */
.spinner{display:inline-block;width:15px;height:15px;border:2px solid rgba(4,37,46,0.4);border-top-color:#04252e;border-radius:50%;animation:spin .75s linear infinite;flex-shrink:0;}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── NO DATA ─────────────────────────────────────── */
.no-data{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:54px 24px;color:var(--text-secondary);text-align:center;}
.no-data-ico{font-size:44px;margin-bottom:14px;opacity:.5;}
.no-data-title{font-size:15px;font-weight:600;margin-bottom:6px;color:var(--text-primary);}
.no-data-text{font-size:12.5px;color:var(--text-muted);}

/* ── RESPONSIVE ───────────────────────────────────── */
@media(max-width:1100px){.kpi-grid{grid-template-columns:repeat(2,1fr);}.grid-2{grid-template-columns:1fr;}}
@media(max-width:768px){
  .sidebar{transform:translateX(calc(var(--sidebar-w)*-1));}
  .sidebar.open{transform:translateX(0);box-shadow:var(--shadow);}
  .overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:99;backdrop-filter:blur(4px);}
  .overlay.show{display:block;}
  .hamburger{display:flex;}
  .main-content{margin-left:0;}
  .top-header{padding:0 16px;}
  .page-body{padding:18px 14px;}
  .tag{display:none;}
}
@media(max-width:480px){.kpi-grid{grid-template-columns:1fr;}}