/*
   KMHTO Theme — soft-metrology.ru
   Source: aila_stile/kmhto_style_template.css + project extensions
   v2.0 — consolidated single stylesheet, no inline duplicates needed
*/

/* ===================== CSS Variables ===================== */
:root {
    /* Corporate palette */
    --tn-blue-dark: #003366;
    --tn-blue: #0066b3;
    --tn-blue-light: #4d9fd8;
    --tn-gray-dark: #2c3e4e;
    --tn-gray: #5a6e7a;
    --tn-gray-light: #eef2f5;
    --tn-white: #ffffff;
    --tn-bg-light: #f8fafc;
    --tn-success: #10b981;
    --tn-danger: #ef4444;
    --tn-warning: #f59e0b;
    --tn-info: #0066b3;
    --tn-border: #dce3ec;

    /* Semantic tokens (light theme) */
    --bg-primary: var(--tn-bg-light);
    --bg-secondary: var(--tn-white);
    --bg-tertiary: var(--tn-gray-light);
    --text-primary: #1e2a3e;
    --text-secondary: var(--tn-gray);
    --border-color: var(--tn-border);

    --accent-blue: var(--tn-blue);
    --accent-dark-blue: var(--tn-blue-dark);
    --accent-green: var(--tn-success);
    --accent-red: var(--tn-danger);
    --accent-purple: #8b5cf6;
    --accent-yellow: var(--tn-warning);
    --accent-pink: #ec4899;
    --accent-orange: #f97316;
    --accent-teal: #14b8a6;

    --header-bg: linear-gradient(135deg, var(--tn-blue-dark), var(--tn-blue));
    --card-shadow: 0 2px 8px rgba(0, 51, 102, 0.08);
    --transition-speed: 0.2s;
    --input-bg: var(--tn-white);
    --hover-bg: rgba(0, 102, 179, 0.05);
}

/* Dark theme */
body.dark-theme {
    --bg-primary: #0f1a24;
    --bg-secondary: #1a2a36;
    --bg-tertiary: #243b48;
    --text-primary: #eef2f5;
    --text-secondary: #b0c4d9;
    --border-color: #2c4c66;

    --accent-blue: #4d9fd8;
    --accent-dark-blue: #2c7ab3;
    --accent-green: #34d399;
    --accent-red: #f87171;
    --accent-purple: #a78bfa;
    --accent-yellow: #fbbf24;

    --header-bg: linear-gradient(135deg, #002b44, #004466);
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --input-bg: #1a2a36;
    --hover-bg: rgba(77, 159, 216, 0.1);
}

/* ===================== Base Reset ===================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    padding: 16px;
    transition: background var(--transition-speed), color var(--transition-speed);
}

/* ===================== Layout ===================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* ===================== Header ===================== */
.header {
    text-align: center;
    margin-bottom: 24px;
    position: relative;
    background: var(--header-bg);
    padding: 20px 16px;
    border-radius: 16px;
    box-shadow: var(--card-shadow);
}

.header h1 {
    font-size: clamp(1.2rem, 5vw, 1.8rem);
    font-weight: 600;
    color: #ffffff;
}

.header-sub {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.75rem;
    margin-top: 6px;
}

/* Dark/Light toggle */
.theme-switch-wrapper {
    position: absolute;
    top: 12px;
    right: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 12px;
    border-radius: 40px;
    backdrop-filter: blur(4px);
    z-index: 100;
}

.theme-label {
    font-size: 0.7rem;
    font-weight: 500;
    color: white;
}

.theme-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
}

.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 34px;
    transition: 0.3s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: 0.3s;
}

input:checked + .slider { background-color: var(--accent-blue); }
input:checked + .slider:before { transform: translateX(22px); }

@media (max-width: 768px) {
    .theme-switch-wrapper {
        position: relative;
        top: auto;
        right: auto;
        margin: 10px auto 0;
        width: fit-content;
    }
}

/* ===================== Navbar ===================== */
.navbar {
    background: var(--bg-secondary);
    border-radius: 16px;
    margin-bottom: 24px;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    font-size: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.menu-toggle {
    display: none;
    background: var(--bg-tertiary);
    border: none;
    color: var(--text-primary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 10px;
    font-size: 0.85rem;
    transition: all var(--transition-speed);
}

.nav-links a i { margin-right: 6px; }

.nav-links a:hover,
.nav-links a.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 0;
        margin-top: 12px;
        padding-top: 8px;
        border-top: 1px solid var(--border-color);
    }
    .nav-links.show { display: flex; }
    .nav-links a {
        display: block;
        width: 100%;
        text-align: center;
    }
}

/* ===================== Cards ===================== */
.card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    margin-bottom: 24px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.card-header h2 {
    color: var(--accent-yellow);
    font-size: 1.3rem;
}

.card-header h2 i { margin-right: 8px; }

/* ===================== Stats Panels ===================== */
.stats-panel {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

.stat-card {
    text-align: center;
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: 12px;
}

.stat-card i {
    font-size: 1.5rem;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent-blue);
    font-family: monospace;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Stats bar (history page) */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: 12px;
}

.stat {
    text-align: center;
}

.stats-bar .stat-value {
    font-size: 1.3rem;
}

/* ===================== Action Cards Grid ===================== */
.actions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.action-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border-color);
    transition: all var(--transition-speed);
    display: block;
}

.action-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-blue);
}

.action-card i {
    font-size: 2rem;
    margin-bottom: 12px;
    color: var(--accent-blue);
    display: block;
}

.action-card h3 { font-size: 1rem; margin-bottom: 8px; }
.action-card p  { font-size: 0.7rem; color: var(--text-secondary); }

/* ===================== Buttons ===================== */
.btn {
    padding: 10px 16px;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    color: #ffffff;
    background: var(--bg-tertiary);
    transition: all var(--transition-speed);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
}

.btn-primary  { background: var(--accent-blue); color: white; width: 100%; justify-content: center; }
.btn-success  { background: var(--accent-green); color: white; }
.btn-warning  { background: var(--accent-orange); color: white; }
.btn-danger   { background: var(--accent-red); color: white; }
.btn-secondary{ background: var(--tn-gray); color: white; }
.btn-sm       { padding: 6px 10px; font-size: 12px; }

.btn-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ===================== Forms ===================== */
label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

input[type="number"],
input[type="text"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--input-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: monospace;
    font-size: 14px;
    margin: 5px 0 15px;
    transition: border-color var(--transition-speed);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.control-group { margin-bottom: 12px; }

.range-value {
    display: inline-block;
    min-width: 45px;
    padding: 3px 8px;
    background: var(--bg-tertiary);
    border-radius: 15px;
    text-align: center;
    font-size: 0.85rem;
    font-family: monospace;
}

/* Form grid */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ===================== Upload Area ===================== */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--bg-tertiary);
}

.upload-area:hover {
    border-color: var(--accent-blue);
    background: var(--hover-bg);
}

.upload-area i {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 12px;
    display: block;
}

.separator {
    text-align: center;
    margin: 20px 0;
    position: relative;
}

.separator::before,
.separator::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 42%;
    height: 1px;
    background: var(--border-color);
}

.separator::before { left: 0; }
.separator::after  { right: 0; }

.separator span {
    background: var(--bg-secondary);
    padding: 0 16px;
    color: var(--text-secondary);
}

/* ===================== Progress Bar ===================== */
.progress-container {
    margin-top: 24px;
    display: none;
}

.progress-bar {
    background: var(--bg-tertiary);
    border-radius: 10px;
    overflow: hidden;
    height: 30px;
    margin-bottom: 16px;
}

.progress-fill {
    background: var(--accent-blue);
    height: 100%;
    width: 0%;
    transition: width 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
}

/* ===================== Log Area ===================== */
.log-area {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 12px;
    font-family: monospace;
    font-size: 0.8rem;
    max-height: 250px;
    overflow-y: auto;
}

.log-entry        { margin-bottom: 4px; }
.log-entry.info   { color: var(--text-secondary); }
.log-entry.success{ color: var(--accent-green); }
.log-entry.error  { color: var(--accent-red); }

/* ===================== Training Results ===================== */
.results {
    margin-top: 20px;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    display: none;
}

.metric {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}

.metric:last-child { border-bottom: none; }

/* ===================== Charts Grid ===================== */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.chart-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 16px;
    border: 1px solid var(--border-color);
}

.chart-card h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--accent-yellow);
}

.chart-card img {
    width: 100%;
    height: auto;
    border-radius: 8px;
}

/* Chart.js container */
.chart-container {
    height: 280px;
    padding: 12px;
    border-radius: 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

/* ===================== Tables ===================== */
.table-container {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    max-height: 500px;
    overflow-y: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
}

th {
    background: var(--bg-tertiary);
    padding: 10px 8px;
    position: sticky;
    top: 0;
    font-weight: 600;
    text-align: left;
    color: var(--text-primary);
}

td {
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: monospace;
}

.positive { color: var(--accent-green); font-weight: 600; }
.negative { color: var(--accent-red); font-weight: 600; }
.zero     { color: var(--accent-yellow); font-weight: 600; }

/* ===================== Empty State ===================== */
.empty-state {
    text-align: center;
    padding: 48px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
    display: block;
}

/* ===================== Status Indicator ===================== */
.status-indicator {
    position: fixed;
    bottom: 16px;
    right: 16px;
    background: var(--bg-secondary);
    border-radius: 40px;
    padding: 6px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 100;
    border: 1px solid var(--border-color);
    font-size: 0.7rem;
    backdrop-filter: blur(8px);
    box-shadow: var(--card-shadow);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.5; }
}

/* ===================== Footer ===================== */
.footer {
    margin-top: 24px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

/* ===================== Panel Grid (aila_stile) ===================== */
.panel-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

/* ===================== Graph Shell (aila_stile) ===================== */
.graph-shell {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--card-shadow);
    padding: 14px;
    margin-bottom: 20px;
}

.graph-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}

.graph-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.graph-meta {
    font-family: "Courier New", monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.graph-canvas-wrap {
    position: relative;
    min-height: 360px;
    background: linear-gradient(180deg, rgba(0,102,179,0.02), rgba(0,102,179,0));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
}

.graph-canvas-wrap canvas,
.graph-canvas-wrap svg,
.graph-canvas-wrap .vis-network {
    width: 100%;
    height: 100%;
    display: block;
}

.graph-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.legend-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 9px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* ===================== Modal Windows (aila_stile) ===================== */
.window-overlay {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(8, 15, 24, 0.5);
    backdrop-filter: blur(2px);
}

.window-modal {
    position: fixed;
    z-index: 901;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(900px, calc(100vw - 24px));
    max-height: calc(100vh - 24px);
    overflow: auto;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.window-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

.window-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.window-body { padding: 16px; }

.window-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
}

/* ===================== Description Blocks (aila_stile) ===================== */
.desc-block {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-blue);
    border-radius: 12px;
    padding: 12px 14px;
    margin-bottom: 10px;
}

.desc-title {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.desc-text {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.desc-code {
    margin-top: 8px;
    border-radius: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 8px 10px;
    font-family: "Courier New", monospace;
    font-size: 0.8rem;
    color: var(--text-primary);
}

.desc-info    { border-left-color: var(--accent-blue); }
.desc-success { border-left-color: var(--accent-green); }
.desc-warning { border-left-color: var(--accent-yellow); }
.desc-danger  { border-left-color: var(--accent-red); }

/* ===================== Predict result blocks ===================== */
.result {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    display: none;
    border-left: 4px solid var(--border-color);
}

.result.positive {
    background: rgba(16, 185, 129, 0.1);
    border-left-color: var(--accent-green);
}

.result.negative {
    background: rgba(239, 68, 68, 0.1);
    border-left-color: var(--accent-red);
}

/* ===================== Utilities ===================== */
.text-muted { color: var(--text-secondary); }
.small      { font-size: 0.9rem; }

[data-lucide],
.icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    stroke-width: 2;
}

/* ===================== Responsive ===================== */
@media (max-width: 768px) {
    .stats-panel  { grid-template-columns: repeat(2, 1fr); }
    .stats-bar    { grid-template-columns: repeat(2, 1fr); }
    .panel-grid   { grid-template-columns: repeat(2, 1fr); }
    .actions-grid { grid-template-columns: 1fr; }
    .charts-grid  { grid-template-columns: 1fr; }
    .form-grid    { grid-template-columns: 1fr; }
    .card         { padding: 16px; }
    .card-header  { flex-direction: column; align-items: flex-start; }
    .stat-value   { font-size: 1.4rem; }
}

@media (max-width: 480px) {
    .stats-panel { grid-template-columns: 1fr; }
    .stats-bar   { grid-template-columns: repeat(2, 1fr); }
}