:root {
    --bg: #f4f6fb;
    --surface: #ffffff;
    --surface-2: #fafbfe;
    --text: #1b2333;
    --muted: #6b7688;
    --line: #e6eaf2;
    --brand: #4c6ef5;
    --brand-dark: #3b5bdb;
    --ok: #12b886;
    --warn: #f59f00;
    --danger: #e03131;
    --chip-bg: #ffffff;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 8px 24px rgba(16, 24, 40, .06);
    --bs-body-color: #1b2333;
    --bs-emphasis-color: #1b2333;
    --bs-table-color: #1b2333;
}

[data-theme="dark"] {
    --bg: #05070d;
    --surface: #0c1220;
    --surface-2: #0a0f1a;
    --text: #e7ecf6;
    --muted: #8b98ad;
    --line: #1b2436;
    --brand: #7c9cff;
    --brand-dark: #6b8bfa;
    --ok: #2dd4a0;
    --warn: #fbbf24;
    --danger: #f87171;
    --chip-bg: #101827;
    --shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 14px 40px rgba(0, 0, 0, .45);
    --bs-body-color: #e7ecf6;
    --bs-emphasis-color: #e7ecf6;
    --bs-table-color: #e7ecf6;
    --bs-table-hover-color: #e7ecf6;
}

* { box-sizing: border-box; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    transition: background-color .25s ease, color .25s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-shell { width: 100%; }
.container { width: 100%; max-width: 1400px; }
.app-nav { overflow-x: auto; }

.app-nav .nav-link { white-space: nowrap; }
.app-nav .container { flex-wrap: nowrap; }

.app-shell {
    position: relative;
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    min-height: 100vh;
}

/* ------------------------------------------------------- фон: свечение и шум */

.bg-glow {
    position: fixed;
    inset: -15%;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(45% 40% at 50% 0%, rgba(79, 227, 255, .16), transparent 62%),
        radial-gradient(38% 34% at 88% 92%, rgba(76, 110, 245, .18), transparent 66%),
        radial-gradient(30% 26% at 10% 78%, rgba(34, 197, 94, .07), transparent 70%);
    animation: bg-breathe 16s ease-in-out infinite;
    will-change: opacity, transform;
}

.bg-grain {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: .035;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes bg-breathe {
    0%, 100% { opacity: .85; transform: scale(1); }
    50% { opacity: .55; transform: scale(1.06); }
}

[data-theme="light"] .bg-glow {
    background:
        radial-gradient(45% 40% at 50% 0%, rgba(76, 110, 245, .12), transparent 62%),
        radial-gradient(38% 34% at 88% 92%, rgba(34, 211, 238, .10), transparent 66%);
}

[data-theme="dark"] .bg-glow {
    background:
        radial-gradient(46% 42% at 50% 0%, rgba(79, 227, 255, .13), transparent 60%),
        radial-gradient(40% 36% at 86% 92%, rgba(76, 110, 245, .22), transparent 66%),
        radial-gradient(28% 24% at 8% 76%, rgba(45, 212, 160, .07), transparent 70%);
}

[data-theme="dark"] .bg-grain { opacity: .05; }

@media (prefers-reduced-motion: reduce) {
    .bg-glow { animation: none; }
    .brand-logo-lg { animation: none; }
}

h1, h2, h3, h4, h5 { font-weight: 700; letter-spacing: -.02em; }

.text-muted { color: var(--muted) !important; }
.small-muted { color: var(--muted); font-size: .8rem; }
.mono { font-family: "JetBrains Mono", "Cascadia Code", Consolas, monospace; font-size: .86rem; }
.nowrap { white-space: nowrap; }

/* ------------------------------------------------------------------ navbar */

.app-nav {
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    backdrop-filter: saturate(180%) blur(12px);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-nav .navbar-brand {
    font-weight: 700;
    letter-spacing: -.02em;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: .55rem;
}

.brand-mark {
    width: 30px;
    height: 30px;
    border-radius: 9px;
    background: linear-gradient(135deg, #5c7cfa, #38d9a9);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 15px;
    font-weight: 700;
}

.brand-logo {
    width: 56px;
    height: 56px;
    display: block;
    border-radius: 14px;
    filter: drop-shadow(0 6px 16px color-mix(in srgb, var(--brand) 38%, transparent));
    transition: transform .35s ease, filter .35s ease;
}

.navbar-brand:hover .brand-logo,
.navbar-brand:focus-visible .brand-logo {
    transform: scale(1.07) rotate(-4deg);
    filter: drop-shadow(0 8px 24px color-mix(in srgb, #4fd3ff 55%, transparent));
}

.brand-logo-lg {
    width: 152px;
    height: 152px;
    display: inline-block;
    filter: drop-shadow(0 10px 30px color-mix(in srgb, var(--brand) 34%, transparent));
    animation: logo-float 6s ease-in-out infinite;
}

@keyframes logo-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

.app-nav .navbar-brand { font-size: 1.12rem; }

.app-nav .nav-link {
    color: var(--muted);
    font-weight: 500;
    border-radius: 9px;
    padding: .4rem .75rem !important;
    transition: .15s;
}

.app-nav .nav-link:hover { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }

.app-nav .nav-link.active {
    color: var(--brand);
    background: color-mix(in srgb, var(--brand) 12%, transparent);
}

.theme-btn {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--muted);
    width: 32px;
    height: 32px;
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .95rem;
    transition: .15s;
}

.theme-btn:hover { color: var(--text); border-color: var(--brand); }

/* -------------------------------------------------------------------- cards */

.card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    background: var(--surface);
    color: var(--text);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--line);
    font-weight: 600;
    padding: .85rem 1.15rem;
    color: var(--text);
}

.card-body { padding: 1.15rem; }

/* ------------------------------------------------------------------ tables  */

.table {
    margin-bottom: 0;
    vertical-align: middle;
    color: var(--text);
    --bs-table-color: var(--text);
    --bs-table-bg: transparent;
    --bs-table-hover-color: var(--text);
    --bs-table-hover-bg: color-mix(in srgb, var(--brand) 6%, transparent);
}

.table > thead th {
    background: var(--surface-2) !important;
    color: var(--muted);
    font-size: .74rem;
    letter-spacing: .04em;
    text-transform: uppercase;
    font-weight: 600;
    border-bottom: 1px solid var(--line) !important;
    white-space: nowrap;
    padding: .7rem .85rem;
}

.table > tbody > tr > td {
    border-color: color-mix(in srgb, var(--line) 70%, transparent);
    padding: .7rem .85rem;
    background: transparent;
    color: var(--text);
}

.table > tbody > tr > td strong,
.table > tbody > tr > td b,
.table > tbody > tr > td code,
.table > tbody > tr > td span:not(.badge) {
    color: inherit;
}

.table > tbody > tr > td .small-muted,
.table > tbody > tr > td .text-muted { color: var(--muted) !important; }

a { color: var(--brand); }
a:hover { color: var(--brand-dark); }

.table-hover > tbody > tr:hover > * { background: var(--bs-table-hover-bg); }

th[data-sort] { cursor: pointer; user-select: none; }
th[data-sort]:hover { color: var(--text); }
.sort-mark { opacity: .5; font-size: .7rem; }

/* ------------------------------------------------------------------ badges  */

.badge { font-weight: 600; border-radius: 999px; padding: .38em .7em; font-size: .74rem; }

.badge-port {
    background: rgba(18, 184, 134, .14);
    color: #0b7a5c;
    border: 1px solid rgba(18, 184, 134, .38);
    font-variant-numeric: tabular-nums;
    border-radius: 7px;
    padding: 3px 9px;
}

.badge-port-udp {
    background: rgba(139, 92, 246, .14);
    color: #6d28d9;
    border: 1px solid rgba(139, 92, 246, .38);
    font-variant-numeric: tabular-nums;
    border-radius: 7px;
    padding: 3px 9px;
}

[data-theme="dark"] .badge-port {
    background: rgba(45, 212, 160, .16);
    color: #7dffb2;
    border-color: rgba(45, 212, 160, .40);
}

[data-theme="dark"] .badge-port-udp {
    background: rgba(167, 139, 250, .18);
    color: #c4b5fd;
    border-color: rgba(167, 139, 250, .42);
}

.port-list {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 4px;
    max-width: 420px;
}

.port-list .badge { white-space: nowrap; }

.badge-port .proto,
.badge-port-udp .proto {
    margin-left: .25rem;
    font-size: .66rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    opacity: .75;
}

/* всплывающая подсказка для портов (не обрезается таблицей) */
.floating-tip {
    position: fixed;
    z-index: 3000;
    max-width: 280px;
    padding: .45rem .65rem;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow);
    font-size: .76rem;
    line-height: 1.35;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity .12s ease, transform .12s ease;
}

.floating-tip.is-visible { opacity: 1; transform: none; }

/* подсказка-вопросик рядом с заголовком поля */
.hint {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    margin-left: .35rem;
    border-radius: 50%;
    border: 1px solid var(--line);
    color: var(--muted);
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    cursor: help;
    position: relative;
    vertical-align: middle;
}

.hint:hover { color: var(--brand); border-color: var(--brand); }

.hint::after {
    content: attr(data-tip);
    position: absolute;
    left: 50%;
    bottom: 150%;
    transform: translateX(-50%);
    width: 240px;
    max-width: 240px;
    padding: .5rem .65rem;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--text);
    box-shadow: var(--shadow);
    font-size: .75rem;
    font-weight: 400;
    line-height: 1.45;
    text-align: left;
    white-space: pre-line;
    overflow-wrap: break-word;
    opacity: 0;
    pointer-events: none;
    transition: opacity .15s ease;
    z-index: 1200;
}

.hint:hover::after { opacity: 1; }

/* сворачиваемые блоки настроек */
.channel { border-bottom: 1px solid var(--line); }
.channel:last-child { border-bottom: 0; }

.channel > summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .85rem 1.15rem;
    user-select: none;
}

.channel > summary::-webkit-details-marker { display: none; }

.channel > summary::before {
    content: "\25B8";
    color: var(--muted);
    transition: transform .2s ease;
    display: inline-block;
}

.channel[open] > summary::before { transform: rotate(90deg); }
.channel > summary:hover { background: color-mix(in srgb, var(--text) 4%, transparent); }
.channel__title { font-weight: 600; }
.channel > summary .badge { margin-left: auto; }
.channel__body { padding: 0 1.15rem 1.15rem; }

/* порты в расписании: перенос между портами, но не внутри номера */
.port-token { display: inline-block; white-space: nowrap; }
.port-sep { color: var(--muted); }

.bg-success { background-color: var(--ok) !important; color: #06231b !important; }
.bg-warning { background-color: var(--warn) !important; color: #2b1d00 !important; }
.bg-danger { background-color: var(--danger) !important; color: #2b0808 !important; }
.bg-secondary { background-color: #8a94a6 !important; color: #fff !important; }
.bg-info { background-color: #4dabf7 !important; color: #04263f !important; }

/* ------------------------------------------------------------------ buttons */

.btn { border-radius: 10px; font-weight: 600; }
.btn-sm { padding: .3rem .65rem; font-size: .82rem; }

.btn-primary {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
    box-shadow: 0 1px 2px rgba(76, 110, 245, .3);
}

.btn-primary:hover, .btn-primary:focus { background: var(--brand-dark); border-color: var(--brand-dark); }

.btn-outline-secondary {
    border-color: var(--line);
    color: var(--muted);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: color-mix(in srgb, var(--text) 7%, transparent);
    border-color: var(--line);
    color: var(--text);
}

.btn-outline-primary { color: var(--brand); border-color: color-mix(in srgb, var(--brand) 45%, transparent); }
.btn-outline-primary:hover { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-outline-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, transparent); }
.btn-outline-danger:hover { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-outline-warning { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); }
.btn-outline-warning:hover { background: var(--warn); border-color: var(--warn); color: #2b1d00; }
.btn-outline-success { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); }
.btn-outline-success:hover { background: var(--ok); border-color: var(--ok); color: #06231b; }

/* ---------------------------------------------------------------- controls  */

.form-control, .form-select {
    border-radius: 10px;
    border: 1px solid var(--line);
    padding: .5rem .75rem;
    font-size: .9rem;
    background: var(--surface-2);
    color: var(--text);
}

.form-control::placeholder { color: color-mix(in srgb, var(--muted) 75%, transparent); }

.form-control:focus, .form-select:focus {
    background: var(--surface);
    border-color: color-mix(in srgb, var(--brand) 55%, var(--line));
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 16%, transparent);
    color: var(--text);
}

.form-label { font-size: .8rem; font-weight: 600; color: var(--muted); margin-bottom: .3rem; }
.form-text { font-size: .78rem; color: var(--muted); }

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    align-items: center;
    margin-bottom: .9rem;
}

.toolbar .search { position: relative; flex: 1 1 260px; max-width: 340px; }
.toolbar .search input { padding-left: 2rem; }

.toolbar .search::before {
    content: "\2315";
    position: absolute;
    left: .75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    font-size: 1rem;
}

/* ----------------------------------------------------------------- progress */

.progress { border-radius: 999px; background: color-mix(in srgb, var(--text) 8%, transparent); }
.progress-bar { border-radius: 999px; }

/* тонкая линия прогресса сверху страницы */
.scan-line {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 2000;
    pointer-events: none;
    opacity: 0;
    transition: opacity .3s ease;
}

.scan-line.is-active { opacity: 1; }

.scan-line__bar {
    height: 100%;
    width: 0;
    border-radius: 0 4px 4px 0;
    background: linear-gradient(90deg, var(--brand), #22d3ee);
    transition: width .45s ease;
}

/* компактная карточка статуса снизу справа */
.scan-chip {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1500;
    display: flex;
    align-items: center;
    gap: .6rem;
    background: var(--chip-bg);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    border-radius: 999px;
    padding: .45rem .55rem .45rem .9rem;
    font-size: .82rem;
    transform: translateY(14px);
    opacity: 0;
    pointer-events: none;
    transition: transform .28s ease, opacity .28s ease;
}

.scan-chip.is-visible { transform: none; opacity: 1; pointer-events: auto; }

.scan-chip__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--warn);
    flex: 0 0 auto;
    animation: scan-pulse 1.3s ease-in-out infinite;
}

.scan-chip__dot.is-done { background: var(--ok); animation: none; }

@keyframes scan-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .3; }
}

.scan-chip__range { font-weight: 600; }
.scan-chip__meta { color: var(--muted); font-variant-numeric: tabular-nums; }

.scan-chip__stop {
    border: 0;
    background: transparent;
    color: var(--danger);
    font-size: .8rem;
    font-weight: 600;
    padding: .3rem .65rem;
    border-radius: 999px;
    transition: .15s;
}

.scan-chip__stop:hover { background: color-mix(in srgb, var(--danger) 14%, transparent); }
.scan-chip__stop:disabled { opacity: .5; }

/* ------------------------------------------------------------------- log    */

details.log-card summary {
    cursor: pointer;
    list-style: none;
    padding: .7rem 1.1rem;
    font-size: .85rem;
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: .5rem;
}

details.log-card summary::-webkit-details-marker { display: none; }
details.log-card summary::before { content: "\25B8"; transition: transform .2s; display: inline-block; }
details.log-card[open] summary::before { transform: rotate(90deg); }

pre.log {
    background: #0e1626 !important;
    color: #cbd5e1;
    margin: 0;
    border-radius: 0 0 var(--radius) var(--radius);
    font-size: .78rem;
    line-height: 1.55;
    padding: .85rem 1.1rem;
}

/* --------------------------------------------------------------------- misc */

.alert { border-radius: 12px; border: 1px solid transparent; font-size: .9rem; }
.alert-success { background: color-mix(in srgb, var(--ok) 12%, var(--surface)); color: color-mix(in srgb, var(--ok) 75%, var(--text)); border-color: color-mix(in srgb, var(--ok) 28%, transparent); }
.alert-danger { background: color-mix(in srgb, var(--danger) 12%, var(--surface)); color: color-mix(in srgb, var(--danger) 80%, var(--text)); border-color: color-mix(in srgb, var(--danger) 28%, transparent); }
.alert-warning { background: color-mix(in srgb, var(--warn) 14%, var(--surface)); color: color-mix(in srgb, var(--warn) 70%, var(--text)); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.alert-info { background: color-mix(in srgb, var(--brand) 12%, var(--surface)); color: color-mix(in srgb, var(--brand) 80%, var(--text)); border-color: color-mix(in srgb, var(--brand) 28%, transparent); }

.page-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.1rem;
    flex-wrap: wrap;
}

.page-head h2 { margin: 0; font-size: 1.45rem; }

.empty-state { text-align: center; color: var(--muted); padding: 2rem 1rem; }

.table-responsive { border-radius: var(--radius); }

.app-footer {
    border-top: 1px solid var(--line);
    padding: 1rem 0;
    margin-top: auto;
    color: var(--muted);
    font-size: .82rem;
    position: relative;
    z-index: 1;
}

.app-shell > .container { flex: 1 0 auto; }

.app-footer a { color: var(--muted); text-decoration: none; }
.app-footer a:hover { color: var(--brand); }

.settings-group + .settings-group { margin-top: 1.25rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }

.settings-group__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    margin-bottom: .85rem;
}

.settings-group__title { font-weight: 700; margin: 0; font-size: 1rem; }

.form-check-label { white-space: nowrap; }
.settings-group .btn { white-space: nowrap; }