/* ============================================================
   real-trading — UI styles
   Layered on top of Bootstrap 5.3.3 (loaded from CDN).
   Pretendard / JetBrains Mono fall back to system fonts.
   ============================================================ */

/* ---------- tokens ---------- */
:root {
    --rt-font-sans: "Pretendard Variable", Pretendard, "Inter", -apple-system,
        BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR",
        Roboto, "Helvetica Neue", Arial, sans-serif;
    --rt-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo,
        Consolas, monospace;

    /* neutral surface — slightly cool */
    --rt-bg:           #f6f7f9;
    --rt-surface:      #ffffff;
    --rt-surface-2:    #fbfbfd;
    --rt-border:       #eaecef;
    --rt-border-strong:#d8dce1;

    /* ink */
    --rt-ink:          #1a1d22;
    --rt-ink-2:        #5a6270;
    --rt-ink-3:        #8a929d;
    --rt-ink-muted:    #aab1bc;

    /* accent — restrained indigo */
    --rt-accent:       #3a52d4;
    --rt-accent-600:   #2f44b8;
    --rt-accent-50:    #eef0fb;

    /* market colors — Korean convention (rise=red, fall=blue) */
    --rt-up:        #d6293e;
    --rt-up-bg:     #fdecee;
    --rt-down:      #1f6feb;
    --rt-down-bg:   #e9f0fd;
    --rt-flat:      var(--rt-ink-3);

    /* state */
    --rt-success:    #15803d;
    --rt-success-bg: #e8f5ee;
    --rt-warning:    #b45309;
    --rt-warning-bg: #fdf3e2;
    --rt-danger:     #b91c1c;
    --rt-danger-bg:  #fdecec;
    --rt-info:       #0e7490;
    --rt-info-bg:    #e6f4f7;

    /* radius / shadow */
    --rt-radius-sm: 6px;
    --rt-radius:    8px;
    --rt-radius-lg: 12px;
    --rt-shadow-1: 0 1px 2px rgba(16, 22, 36, 0.04);
    --rt-shadow-2: 0 4px 14px rgba(16, 22, 36, 0.06);

    /* bootstrap overrides */
    --bs-body-font-family: var(--rt-font-sans);
    --bs-body-color: var(--rt-ink);
    --bs-body-bg: var(--rt-bg);
    --bs-border-color: var(--rt-border);
    --bs-border-radius: var(--rt-radius);
    --bs-border-radius-sm: var(--rt-radius-sm);
    --bs-border-radius-lg: var(--rt-radius-lg);
    --bs-primary: var(--rt-accent);
    --bs-primary-rgb: 58, 82, 212;
    --bs-link-color: var(--rt-accent);
    --bs-link-hover-color: var(--rt-accent-600);
    --bs-secondary-color: var(--rt-ink-2);
}

/* ---------- base ---------- */
html, body {
    background-color: var(--rt-bg);
    color: var(--rt-ink);
    font-family: var(--rt-font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.005em;
}

main.container,
main.container-fluid {
    color: var(--rt-ink);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--rt-ink);
    letter-spacing: -0.015em;
    font-weight: 600;
}

code, .font-mono, .num, kbd {
    font-family: var(--rt-font-mono);
    font-feature-settings: "tnum" 1, "zero" 1;
}

code {
    color: var(--rt-ink-2);
    background: var(--rt-surface-2);
    border: 1px solid var(--rt-border);
    border-radius: 4px;
    padding: 1px 5px;
    font-size: 0.85em;
}

.text-body-secondary { color: var(--rt-ink-2) !important; }

a { text-underline-offset: 2px; }

/* tabular nums for tables / numbers */
.table td, .table th, .num,
td.text-end, th.text-end {
    font-variant-numeric: tabular-nums;
    font-feature-settings: "tnum" 1;
}

/* ---------- navbar (light, force-override Bootstrap dark) ---------- */
nav.navbar,
.navbar.navbar-dark,
.navbar.bg-dark,
.navbar.navbar-dark.bg-dark {
    background-color: #ffffff !important;
    background-image: none !important;
    border-bottom: 1px solid var(--rt-border);
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
    box-shadow: var(--rt-shadow-1);
    --bs-navbar-color: var(--rt-ink-2);
    --bs-navbar-hover-color: var(--rt-ink);
    --bs-navbar-active-color: var(--rt-accent);
    --bs-navbar-brand-color: var(--rt-ink);
    --bs-navbar-brand-hover-color: var(--rt-ink);
}

.navbar .navbar-brand,
.navbar .nav-link {
    color: var(--rt-ink) !important;
}

.navbar .navbar-brand {
    font-weight: 700;
    letter-spacing: -0.02em;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 1.02rem;
}

.navbar .navbar-brand .brand-mark {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--rt-accent) 0%, #6d7ff0 100%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    margin-right: 0;
}

.navbar .navbar-brand .bi { color: var(--rt-accent); }

.navbar .nav-link {
    color: var(--rt-ink-2) !important;
    font-weight: 500;
    padding: 0.4rem 0.85rem !important;
    border-radius: var(--rt-radius-sm);
    margin: 0 2px;
    transition: background-color 0.12s ease, color 0.12s ease;
}

.navbar .nav-link:hover {
    color: var(--rt-ink) !important;
    background: var(--rt-surface-2);
}

.navbar .nav-link.active,
.navbar .nav-link[aria-current="page"] {
    color: var(--rt-accent) !important;
    background: var(--rt-accent-50);
}

.navbar .navbar-toggler {
    border-color: var(--rt-border);
}

.navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231a1d22' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar form .btn-outline-light,
.navbar .btn-outline-light {
    color: var(--rt-ink-2);
    border-color: var(--rt-border-strong);
    background: var(--rt-surface);
    font-weight: 500;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.navbar form .btn-outline-light:hover,
.navbar .btn-outline-light:hover {
    background: var(--rt-surface-2);
    color: var(--rt-ink);
    border-color: var(--rt-ink-3);
}

.navbar .navbar-nav { flex-wrap: nowrap; }
.navbar .nav-link { white-space: nowrap; }
.navbar .navbar-nav .nav-item { white-space: nowrap; }

/* ---------- page header ---------- */
main h1.h3 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

main .page-sub {
    color: var(--rt-ink-2);
    font-size: 0.875rem;
}
.page-sub code { font-size: 0.85rem; }

/* ---------- card ---------- */
.card {
    background: var(--rt-surface);
    border: 1px solid var(--rt-border);
    border-radius: var(--rt-radius-lg);
    box-shadow: var(--rt-shadow-1);
    overflow: hidden;
}

.card .card-header {
    background: var(--rt-surface);
    border-bottom: 1px solid var(--rt-border);
    color: var(--rt-ink);
    font-weight: 600;
    padding: 0.85rem 1.1rem;
    letter-spacing: -0.01em;
    font-size: 0.95rem;
}

.card .card-header .bi {
    color: var(--rt-ink-3);
    margin-right: 0.25rem;
}

.card .card-body { padding: 1.1rem; }

/* stat card */
.stat-card { position: relative; }

.stat-card .stat-label,
.stat-label {
    color: var(--rt-ink-2);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    text-transform: uppercase;
}

.stat-card .stat-value,
.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    color: var(--rt-ink);
    margin-top: 0.4rem;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
}

.stat-card .stat-value .stat-unit,
.stat-unit {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--rt-ink-3);
    margin-left: 0.15rem;
}

.stat-card .stat-delta,
.stat-delta {
    margin-top: 0.4rem;
    font-size: 0.82rem;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

/* ---------- table ---------- */
.table {
    --bs-table-bg: transparent;
    color: var(--rt-ink);
    margin-bottom: 0;
}

.table > :not(caption) > * > * {
    padding: 0.7rem 0.95rem;
    background-color: transparent;
    border-bottom-color: var(--rt-border);
}

.table thead.table-light th,
.table thead th {
    background: var(--rt-surface-2) !important;
    color: var(--rt-ink-2) !important;
    font-weight: 500;
    font-size: 0.78rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--rt-border) !important;
    white-space: nowrap;
}

.table tbody tr { transition: background-color 0.1s ease; }

.table-hover > tbody > tr:hover > * {
    background-color: var(--rt-surface-2);
}

.table tbody tr:last-child > * { border-bottom: 0; }

.table .fw-medium {
    font-weight: 600;
    color: var(--rt-ink);
}

.table .small.text-body-secondary {
    font-family: var(--rt-font-mono);
    font-size: 0.74rem;
    color: var(--rt-ink-3) !important;
}

/* numeric columns: tabular nums */
.table td.text-end,
.table th.text-end {
    font-variant-numeric: tabular-nums;
}

/* ---------- trend (Korean convention: rise=red, fall=blue) ---------- */
.rt-rise, .text-rise,
[class*="trend-up"] {
    color: var(--rt-up) !important;
}
.rt-fall, .text-fall,
[class*="trend-down"] {
    color: var(--rt-down) !important;
}
.rt-flat { color: var(--rt-flat) !important; }

/* ---------- badge ---------- */
.badge {
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.01em;
    padding: 0.3em 0.6em;
    border-radius: 5px;
    border: 1px solid transparent;
    vertical-align: middle;
}

.badge.text-bg-secondary {
    background-color: var(--rt-surface-2) !important;
    color: var(--rt-ink-2) !important;
    border-color: var(--rt-border);
}

.badge.text-bg-light {
    background-color: var(--rt-surface-2) !important;
    color: var(--rt-ink-2) !important;
    border-color: var(--rt-border);
}

.badge.text-bg-success {
    background-color: var(--rt-success-bg) !important;
    color: var(--rt-success) !important;
    border-color: rgba(21, 128, 61, 0.18);
}

.badge.text-bg-warning {
    background-color: var(--rt-warning-bg) !important;
    color: var(--rt-warning) !important;
    border-color: rgba(180, 83, 9, 0.20);
}

.badge.text-bg-danger {
    background-color: var(--rt-danger-bg) !important;
    color: var(--rt-danger) !important;
    border-color: rgba(185, 28, 28, 0.20);
}

.badge.text-bg-info {
    background-color: var(--rt-info-bg) !important;
    color: var(--rt-info) !important;
    border-color: rgba(14, 116, 144, 0.18);
}

.badge.text-bg-primary {
    background-color: var(--rt-accent-50) !important;
    color: var(--rt-accent-600) !important;
    border-color: rgba(58, 82, 212, 0.20);
}

/* status dot */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--rt-ink-muted);
    margin-right: 0.4rem;
    vertical-align: middle;
}
.status-dot.is-on   { background: #16a34a; box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15); }
.status-dot.is-off  { background: var(--rt-ink-muted); }
.status-dot.is-warn { background: #f59e0b; }

/* ---------- buttons ---------- */
.btn {
    font-weight: 500;
    border-radius: var(--rt-radius-sm);
    padding: 0.42rem 0.85rem;
    transition: background-color 0.12s ease, border-color 0.12s ease,
        color 0.12s ease, box-shadow 0.12s ease;
}

.btn-sm {
    padding: 0.28rem 0.6rem;
    font-size: 0.82rem;
}

.btn-primary {
    background-color: var(--rt-accent);
    border-color: var(--rt-accent);
    color: #fff;
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--rt-accent-600);
    border-color: var(--rt-accent-600);
    color: #fff;
}

.btn-outline-secondary {
    color: var(--rt-ink-2);
    background: var(--rt-surface);
    border-color: var(--rt-border-strong);
}
.btn-outline-secondary:hover {
    background: var(--rt-surface-2);
    color: var(--rt-ink);
    border-color: var(--rt-ink-3);
}

.btn-outline-warning {
    color: var(--rt-warning);
    border-color: rgba(180, 83, 9, 0.40);
    background: var(--rt-surface);
}
.btn-outline-warning:hover {
    color: var(--rt-warning);
    background: var(--rt-warning-bg);
    border-color: var(--rt-warning);
}

.btn-success {
    background: var(--rt-success);
    border-color: var(--rt-success);
}
.btn-success:hover { background: #126f34; border-color: #126f34; }

.btn-danger {
    background: var(--rt-danger);
    border-color: var(--rt-danger);
}
.btn-danger:hover { background: #9b1818; border-color: #9b1818; }

.btn-outline-danger {
    color: var(--rt-danger);
    background: var(--rt-surface);
    border-color: rgba(185, 28, 28, 0.35);
}
.btn-outline-danger:hover {
    background: var(--rt-danger-bg);
    color: var(--rt-danger);
    border-color: var(--rt-danger);
}

/* ---------- forms ---------- */
.form-label {
    font-weight: 500;
    color: var(--rt-ink);
    font-size: 0.88rem;
    margin-bottom: 0.4rem;
}

.form-control,
.form-select {
    background: var(--rt-surface);
    border: 1px solid var(--rt-border-strong);
    border-radius: var(--rt-radius-sm);
    color: var(--rt-ink);
    padding: 0.5rem 0.75rem;
    transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--rt-accent);
    box-shadow: 0 0 0 3px rgba(58, 82, 212, 0.14);
}

.form-text {
    color: var(--rt-ink-3);
    font-size: 0.8rem;
}

.form-floating > label { color: var(--rt-ink-3); }

.input-group .btn-primary { box-shadow: none; }

/* ---------- dropdown / autocomplete ---------- */
.dropdown-menu {
    border: 1px solid var(--rt-border);
    border-radius: var(--rt-radius);
    box-shadow: var(--rt-shadow-2);
    padding: 0.3rem;
}

.dropdown-item {
    border-radius: var(--rt-radius-sm);
    padding: 0.5rem 0.65rem;
    color: var(--rt-ink);
}
.dropdown-item:hover, .dropdown-item:focus {
    background: var(--rt-accent-50);
    color: var(--rt-accent-600);
}

/* ---------- alert ---------- */
.alert {
    border-radius: var(--rt-radius);
    border: 1px solid transparent;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
}

.alert-success {
    background: var(--rt-success-bg);
    color: var(--rt-success);
    border-color: rgba(21, 128, 61, 0.18);
}
.alert-warning {
    background: var(--rt-warning-bg);
    color: var(--rt-warning);
    border-color: rgba(180, 83, 9, 0.20);
}
.alert-danger {
    background: var(--rt-danger-bg);
    color: var(--rt-danger);
    border-color: rgba(185, 28, 28, 0.20);
}
.alert-info {
    background: var(--rt-info-bg);
    color: var(--rt-info);
    border-color: rgba(14, 116, 144, 0.18);
}

/* ---------- list group ---------- */
.list-group-item {
    background: var(--rt-surface);
    border-color: var(--rt-border);
    color: var(--rt-ink);
    padding: 0.85rem 1.1rem;
}
.list-group-flush > .list-group-item {
    border-width: 0 0 1px 0;
}

/* ---------- footer ---------- */
footer.border-top {
    border-color: var(--rt-border) !important;
    background: transparent;
    color: var(--rt-ink-3);
}

/* ---------- def list (dl row) — quote / mypage info ---------- */
dl.row dt {
    font-weight: 500;
    color: var(--rt-ink-2);
    font-size: 0.88rem;
}
dl.row dd {
    color: var(--rt-ink);
    font-size: 0.92rem;
}
dl.row dd code { font-size: 0.88em; }

/* ---------- utility ---------- */
.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--rt-ink);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: -0.01em;
}

.section-title .bi { color: var(--rt-ink-3); }

.divider-soft {
    border-top: 1px solid var(--rt-border);
    margin: 1.5rem 0;
}

.kbd-badge {
    font-family: var(--rt-font-mono);
    font-size: 0.74rem;
    padding: 2px 6px;
    border: 1px solid var(--rt-border);
    border-bottom-width: 2px;
    border-radius: 4px;
    color: var(--rt-ink-2);
    background: var(--rt-surface-2);
}

/* page-level container tightening */
main.container {
    padding-top: 1.75rem !important;
    padding-bottom: 3rem !important;
}

/* ---------- responsive ---------- */
@media (max-width: 576px) {
    main.container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .card .card-body { padding: 0.95rem; }
    .stat-card .stat-value { font-size: 1.25rem; }
}