* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; background: #000; color: #fff; min-height: 100vh; }

/* Login */
.login-box {
    max-width: 360px; margin: 20vh auto; text-align: center; padding: 40px;
    background: rgba(255,255,255,0.03); border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.login-box .logo {
    display: inline-flex; align-items: center; justify-content: center;
    width: 48px; height: 48px; border-radius: 14px;
    background: linear-gradient(135deg, #10B981, #3B82F6);
    font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 20px;
}
.login-box h1 { margin-bottom: 4px; font-size: 1.3rem; }
.login-box p { color: #666; margin-bottom: 24px; font-size: 0.9rem; }
.login-box input {
    width: 100%; padding: 12px; border: 1px solid rgba(255,255,255,0.08);
    border-radius: 10px; background: rgba(255,255,255,0.04); color: #fff;
    font-size: 1.1rem; text-align: center; letter-spacing: 4px; margin-bottom: 16px;
}
.login-box input:focus { outline: none; border-color: #10B981; }
.login-box button {
    width: 100%; padding: 12px; border: none; border-radius: 10px;
    background: linear-gradient(135deg, #10B981, #059669); color: #fff;
    font-size: 0.95rem; cursor: pointer; font-weight: 600; transition: opacity 0.2s;
}
.login-box button:hover { opacity: 0.9; }
.error { color: #EF4444; margin-top: 12px; font-size: 0.85rem; }

/* Header */
header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 24px; background: rgba(255,255,255,0.02);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.header-left { display: flex; align-items: center; gap: 12px; }
.header-logo {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 8px;
    background: linear-gradient(135deg, #10B981, #3B82F6);
    font-size: 0.9rem; font-weight: 800; color: #fff;
}
header h1 { font-size: 1.1rem; font-weight: 600; }
.badge {
    background: rgba(16,185,129,0.15); color: #10B981;
    padding: 4px 10px; border-radius: 20px; font-size: 0.7rem; font-weight: 600;
}
nav { display: flex; gap: 2px; }
.tab {
    padding: 8px 16px; border: none; background: transparent; color: #666;
    cursor: pointer; border-radius: 8px; font-size: 0.85rem; transition: all 0.2s;
}
.tab:hover { background: rgba(255,255,255,0.04); color: #fff; }
.tab.active { background: rgba(255,255,255,0.06); color: #10B981; font-weight: 600; }

/* Content */
.tab-content { display: none; padding: 24px; max-width: 1400px; margin: 0 auto; }
.tab-content.active { display: block; }

.controls {
    display: flex; align-items: flex-end; gap: 12px; margin-bottom: 24px; flex-wrap: wrap;
    padding: 20px; background: rgba(255,255,255,0.02); border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
}
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.7rem; color: #666; text-transform: uppercase; letter-spacing: 0.8px; font-weight: 600; }
.field input, .field select {
    padding: 9px 14px; border: 1px solid rgba(255,255,255,0.08); border-radius: 8px;
    background: rgba(255,255,255,0.04); color: #fff; font-size: 0.9rem; min-width: 100px;
}
.field input:focus, .field select:focus { outline: none; border-color: #10B981; }
.field input::placeholder { color: #444; }
.field select { min-width: 220px; }

.btn-primary {
    padding: 9px 24px; border: none; border-radius: 8px;
    background: linear-gradient(135deg, #10B981, #059669); color: #fff;
    cursor: pointer; font-weight: 600; font-size: 0.9rem; height: 38px; transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.9; }

/* Tables */
.table-wrap {
    background: rgba(255,255,255,0.02); border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05); overflow: hidden;
}
table { width: 100%; border-collapse: collapse; }
th {
    background: rgba(255,255,255,0.03); padding: 12px 16px; text-align: left;
    font-size: 0.7rem; text-transform: uppercase; color: #666;
    letter-spacing: 0.8px; font-weight: 600;
}
td { padding: 12px 16px; border-top: 1px solid rgba(255,255,255,0.04); font-size: 0.85rem; color: #a0a0a0; }
tr:hover { background: rgba(255,255,255,0.02); }
.cheapest { color: #10B981; font-weight: 600; }
.expensive { color: #EF4444; }
.price { font-variant-numeric: tabular-nums; font-weight: 500; color: #fff; }
.tag { display: inline-block; padding: 3px 8px; border-radius: 6px; font-size: 0.65rem; font-weight: 600; letter-spacing: 0.3px; }
.tag-min { background: rgba(16,185,129,0.1); color: #10B981; }
.tag-rate { background: rgba(59,130,246,0.1); color: #3B82F6; }
.transit { color: #666; font-size: 0.8rem; }

/* Margin colors */
.margin-good { color: #10B981; }
.margin-ok { color: #FBBF24; }
.margin-low { color: #EF4444; }

/* Customer cards */
.customer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.customer-card {
    background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px; padding: 24px; transition: border-color 0.2s;
}
.customer-card:hover { border-color: rgba(16,185,129,0.2); }
.customer-card h3 { color: #fff; margin-bottom: 4px; font-size: 1.05rem; }
.customer-card .meta { color: #666; font-size: 0.8rem; margin-bottom: 16px; }
.customer-card .detail {
    display: flex; justify-content: space-between; padding: 8px 0;
    font-size: 0.85rem; border-top: 1px solid rgba(255,255,255,0.04);
}
.customer-card .detail:first-of-type { border-top: none; }
.customer-card .detail .label { color: #666; }
.customer-card .detail span:last-child { color: #a0a0a0; }

/* Empty state */
.empty { color: #444; text-align: center; padding: 48px 24px; font-size: 0.9rem; }