/* ─── Reset & Variables ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:           #F7F6F3;
    --surface:      #FFFFFF;
    --surface-2:    #F0EEE9;
    --border:       #E4E1D9;
    --text:         #1A1915;
    --text-muted:   #7A776E;
    --accent:       #2C5282;
    --accent-light: #EBF0F9;
    --win:          #1A6B45;
    --win-bg:       #E8F5EE;
    --loss:         #9B2020;
    --loss-bg:      #FBEAEA;
    --be:           #6B5E2C;
    --be-bg:        #FBF5E6;
    --radius:       10px;
    --shadow:       0 1px 4px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.04);
    --transition:   0.18s ease;
    --font-display: 'DM Serif Display', Georgia, serif;
    --font-body:    'DM Sans', system-ui, sans-serif;
}

html { font-size: 16px; }
body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

/* ─── Navbar ──────────────────────────────────────────────────────────────── */
.navbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 62px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand { display: flex; align-items: center; gap: .55rem; text-decoration: none; }
.nav-logo { font-size: 1.3rem; color: var(--accent); }
.nav-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--text);
    letter-spacing: -.01em;
}
.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    gap: .25rem;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: .875rem;
    font-weight: 500;
    padding: .45rem .85rem;
    border-radius: var(--radius);
    transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--surface-2); }
.nav-links a.nav-cta {
    background: var(--accent);
    color: #fff;
    padding: .45rem 1rem;
}
.nav-links a.nav-cta:hover { background: #1a3a6b; color: #fff; }

/* ─── Layout ──────────────────────────────────────────────────────────────── */
.main-content { flex: 1; padding: 2.5rem 2rem; max-width: 1260px; margin: 0 auto; width: 100%; }
.page-header { margin-bottom: 2rem; }
.page-header h1 { font-family: var(--font-display); font-size: 2rem; font-weight: 400; }
.page-header p  { color: var(--text-muted); margin-top: .25rem; font-size: .9rem; }

/* ─── Stat Cards ──────────────────────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow);
}
.stat-card .label {
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-muted);
    margin-bottom: .4rem;
}
.stat-card .value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    color: var(--text);
    line-height: 1.1;
}
.stat-card .value.positive { color: var(--win); }
.stat-card .value.negative { color: var(--loss); }
.stat-card .sub { font-size: .78rem; color: var(--text-muted); margin-top: .3rem; }

/* ─── Table ───────────────────────────────────────────────────────────────── */
.table-wrapper {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.table-toolbar {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: .75rem;
    flex-wrap: wrap;
}
.table-toolbar select,
.table-toolbar input[type="date"],
.table-toolbar input[type="text"] {
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: .4rem .75rem;
    font-size: .85rem;
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    outline: none;
    transition: border-color var(--transition);
}
.table-toolbar select:focus,
.table-toolbar input:focus { border-color: var(--accent); }
.table-toolbar .spacer { flex: 1; }

table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead th {
    text-align: left;
    padding: .75rem 1rem;
    font-size: .72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--text-muted);
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
}
tbody tr { border-bottom: 1px solid var(--border); transition: background var(--transition); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--bg); }
tbody td { padding: .8rem 1rem; vertical-align: middle; }

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: .2rem .6rem;
    border-radius: 999px;
    font-size: .72rem;
    font-weight: 600;
    letter-spacing: .03em;
}
.badge-win    { background: var(--win-bg);  color: var(--win); }
.badge-loss   { background: var(--loss-bg); color: var(--loss); }
.badge-be     { background: var(--be-bg);   color: var(--be); }
.badge-long   { background: #E8F0FE; color: #2C4EA8; }
.badge-short  { background: #FDE8E8; color: #9B2020; }
.badge-sydney  { background: #E6F3FB; color: #1A6080; }
.badge-asia    { background: #FEF3E2; color: #8A5C00; }
.badge-london  { background: #EAF4EE; color: #1A6632; }
.badge-newyork { background: #F0EBF8; color: #5B2C8D; }

.pnl-positive { color: var(--win);  font-weight: 600; }
.pnl-negative { color: var(--loss); font-weight: 600; }
.pnl-zero     { color: var(--be);   font-weight: 600; }

/* Action buttons */
.btn-icon {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: .3rem .6rem;
    cursor: pointer;
    font-size: .8rem;
    color: var(--text-muted);
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
}
.btn-icon:hover { background: var(--surface-2); color: var(--text); }
.btn-icon.danger:hover { background: var(--loss-bg); color: var(--loss); border-color: var(--loss); }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: 1rem; }
.empty-state h3 { font-family: var(--font-display); font-size: 1.3rem; color: var(--text); margin-bottom: .5rem; }

/* ─── Forms ───────────────────────────────────────────────────────────────── */
.form-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    max-width: 820px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem 1.5rem; }
.form-grid .full { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: .35rem; }
.form-group label {
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--text-muted);
}
.form-group input,
.form-group select,
.form-group textarea {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .6rem .85rem;
    font-size: .9rem;
    font-family: var(--font-body);
    color: var(--text);
    background: var(--bg);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}
.form-group textarea { resize: vertical; min-height: 90px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .65rem 1.4rem;
    border-radius: 8px;
    font-size: .9rem;
    font-family: var(--font-body);
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition);
    text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #1a3a6b; }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--surface-2); }
.btn-danger { background: var(--loss-bg); color: var(--loss); border-color: var(--loss); }
.btn-danger:hover { background: var(--loss); color: #fff; }

.form-actions { margin-top: 1.75rem; display: flex; gap: .75rem; }

/* ─── Alerts ──────────────────────────────────────────────────────────────── */
.alert {
    padding: .85rem 1.1rem;
    border-radius: 8px;
    margin-bottom: 1.25rem;
    font-size: .9rem;
    border-left: 4px solid;
}
.alert-success { background: var(--win-bg);  color: var(--win);  border-color: var(--win); }
.alert-error   { background: var(--loss-bg); color: var(--loss); border-color: var(--loss); }

/* ─── Footer ──────────────────────────────────────────────────────────────── */
.footer {
    text-align: center;
    padding: 1.5rem;
    font-size: .8rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: auto;
}

/* ─── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 700px) {
    .main-content { padding: 1.5rem 1rem; }
    .form-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .navbar { padding: 0 1rem; }
    table { font-size: .78rem; }
    thead th, tbody td { padding: .6rem .5rem; }
}

/* ─── Nav User ────────────────────────────────────────────────────────────── */
.nav-user {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding-left: .5rem;
    border-left: 1px solid var(--border);
    margin-left: .25rem;
}
.nav-username {
    font-size: .82rem;
    font-weight: 500;
    color: var(--text-muted);
}