/* Nexus Core — Universal Component Styles
   Version 2.0 — единый файл для всех страниц:
   Кабельный менеджмент, Системы охлаждения, Настройка BIOS,
   Поиск проблем, Типичные ошибки, Установка ОС и другие
*/

:root {
    --primary: #8A2BE2;
    --primary-dark: #6A1CB8;
    --secondary: #00D4FF;
    --accent: #FF2E93;
    --dark: #0F0F1E;
    --darker: #090914;
    --light: #F0F2FE;
    --success: #00F5A0;
    --warning: #FFCC00;
    --danger: #FF4D4D;
    --card-bg: rgba(30, 30, 60, 0.7);
    --glow-primary: rgba(138, 43, 226, 0.4);
    --glow-secondary: rgba(0, 212, 255, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, var(--darker) 0%, var(--dark) 50%, #1a1a2e 100%);
    color: var(--light);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Floating background elements */
.floating-elements {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 0;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    filter: blur(20px);
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 5%;
}

.floating-element:nth-child(2) {
    width: 300px;
    height: 300px;
    bottom: 10%;
    right: 5%;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    width: 150px;
    height: 150px;
    top: 50%;
    right: 15%;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.1); }
}

/* Main Container */
.container {
    max-width: 1450px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0 1rem;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 1rem;
}

.logo-icon {
    font-size: 2.8rem;
    color: var(--secondary);
    filter: drop-shadow(0 0 10px var(--glow-secondary));
}

h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(45deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 800;
    letter-spacing: 1px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(138, 43, 226, 0.2);
    padding: 0.4rem 1.5rem;
    border-radius: 40px;
    font-size: 0.9rem;
    margin-bottom: 1.8rem;
    backdrop-filter: blur(4px);
}

/* Hero Sections (общие стили для всех hero-блоков) */
.cable-hero, .cooling-hero, .bios-hero, .diag-hero, .mistakes-hero, .os-hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.2rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
    background: linear-gradient(135deg, rgba(0,212,255,0.05), rgba(138,43,226,0.05));
    border-radius: 60px;
    padding: 2rem 2.5rem;
    border: 1px solid rgba(0,212,255,0.2);
    backdrop-filter: blur(8px);
}

/* Definition boxes */
.cable-definition-box, .cooling-definition-box, .bios-definition-box, .diag-definition-box, .mistakes-definition-box, .os-definition-box {
    flex: 1.2;
    min-width: 360px;
    background: rgba(0,0,0,0.45);
    border-radius: 32px;
    padding: 2rem 2.2rem;
    backdrop-filter: blur(4px);
    text-align: left;
}

.cable-definition-box { border-left: 6px solid var(--secondary); }
.cooling-definition-box { border-left: 6px solid var(--secondary); }
.bios-definition-box { border-left: 6px solid var(--secondary); }
.diag-definition-box { border-left: 6px solid var(--danger); }
.mistakes-definition-box { border-left: 6px solid var(--warning); }
.os-definition-box { border-left: 6px solid var(--secondary); }

.cable-definition-box h3, .cooling-definition-box h3, .bios-definition-box h3,
.diag-definition-box h3, .mistakes-definition-box h3, .os-definition-box h3 {
    font-size: 2.1rem;
    margin-bottom: 1.2rem;
    font-weight: 700;
}

.cable-definition-box h3, .cooling-definition-box h3, .bios-definition-box h3, .os-definition-box h3 { color: var(--secondary); }
.diag-definition-box h3 { color: var(--danger); }
.mistakes-definition-box h3 { color: var(--warning); }

.cable-definition-box p, .cooling-definition-box p, .bios-definition-box p,
.diag-definition-box p, .mistakes-definition-box p, .os-definition-box p {
    margin-bottom: 1.2rem;
    font-size: 1.18rem;
    line-height: 1.6;
}

/* Image containers */
.cable-image-container, .cooling-image-container, .bios-image-container, .diag-image-container, .mistakes-image-container, .os-image-container {
    position: relative;
    width: 500px;
    max-width: 100%;
    background: linear-gradient(135deg, rgba(0,212,255,0.12), rgba(138,43,226,0.1));
    border-radius: 36px;
    box-shadow: 0 0 45px rgba(0,212,255,0.35);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

/* Action pills */
.three-actions, .action-group {
    display: flex;
    gap: 1rem;
    margin-top: 1.2rem;
    flex-wrap: wrap;
}

.action-pill {
    background: rgba(0,212,255,0.15);
    border-radius: 50px;
    padding: 0.6rem 1.4rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(0,212,255,0.4);
    font-weight: 500;
    font-size: 1.02rem;
}

.action-pill.danger {
    border-color: var(--danger);
    background: rgba(255,77,77,0.15);
}

/* Instant insight */
.instant-insight {
    background: linear-gradient(145deg, #0F0F24, #080812);
    border-radius: 28px;
    padding: 1.1rem 1.6rem;
    margin-top: 1.2rem;
    border: 1px solid rgba(0,245,160,0.4);
    width: 100%;
    line-height: 1.5;
    font-size: 1.02rem;
}

/* Spec badges */
.spec-badges {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 1.6rem 0 0.5rem;
}

.badge {
    background: rgba(0,212,255,0.2);
    padding: 0.5rem 1.8rem;
    border-radius: 50px;
    font-size: 0.98rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
}

.badge.danger {
    background: rgba(255,77,77,0.2);
    border: 1px solid var(--danger);
}

.badge.warning {
    background: rgba(255,204,0,0.2);
    border: 1px solid var(--warning);
}

/* Layout */
.guide-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 2rem;
    margin-top: 1rem;
}

.main-article {
    background: linear-gradient(145deg, rgba(20, 20, 40, 0.8), rgba(10, 10, 30, 0.95));
    border-radius: 25px;
    padding: 2rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.1);
}

.side-panel {
    position: sticky;
    top: 1.8rem;
    height: fit-content;
}

/* Widgets (общие стили) */
.cooling-widget, .bios-widget, .diag-widget, .mistakes-widget, .os-widget, .cpu-widget {
    border-radius: 1.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.cooling-widget, .bios-widget, .os-widget, .cpu-widget {
    background: linear-gradient(135deg, rgba(0,113,197,0.2), rgba(138,43,226,0.12));
    border: 1px solid var(--secondary);
}

.diag-widget {
    background: linear-gradient(135deg, rgba(255,77,77,0.1), rgba(138,43,226,0.12));
    border: 1px solid var(--danger);
}

.mistakes-widget {
    background: linear-gradient(135deg, rgba(255,204,0,0.1), rgba(138,43,226,0.12));
    border: 1px solid var(--warning);
}

.cooling-widget h4, .bios-widget h4, .diag-widget h4, .mistakes-widget h4, .os-widget h4, .cpu-widget h4 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cooling-widget h4, .bios-widget h4, .os-widget h4, .cpu-widget h4 { color: var(--secondary); }
.diag-widget h4 { color: var(--danger); }
.mistakes-widget h4 { color: var(--warning); }

/* CMD box */
.cmd-box {
    background: #0A0A14;
    border-radius: 12px;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    border: 1px solid rgba(255,255,255,0.1);
    margin: 12px 0;
}

.cmd-code {
    font-family: 'Courier New', monospace;
    font-weight: bold;
    color: #FDE047;
}

/* Info bento */
.info-bento {
    background: linear-gradient(145deg, #0F0F24, #080812);
    border-radius: 1.5rem;
    padding: 1.3rem;
    border: 1px solid rgba(138,43,226,0.3);
    margin-bottom: 1.2rem;
}

/* Typography */
h2 {
    font-size: 1.9rem;
    font-weight: 700;
    margin: 2rem 0 1.2rem;
    border-left: 4px solid var(--primary);
    padding-left: 1.2rem;
    background: linear-gradient(90deg, rgba(138,43,226,0.15) 0%, rgba(0,0,0,0) 100%);
    border-radius: 0 12px 12px 0;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

h3 {
    font-size: 1.4rem;
    margin-top: 1.8rem;
    margin-bottom: 0.8rem;
    color: var(--secondary);
}

/* Info cards */
.info-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--secondary);
    transition: 0.3s;
}

.info-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.info-card.danger-card {
    border-left-color: var(--danger);
}

.info-card.warning-card {
    border-left-color: var(--warning);
}

.success-card {
    border-left-color: var(--success);
    background: linear-gradient(145deg, rgba(0,245,160,0.08), rgba(30,30,60,0.7));
}

.card-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Grids for tools/cards */
.tools-grid-nexus, .tools-grid-cool, .bios-tools-grid, .diag-tools-grid, .mistakes-grid, .os-steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin: 1rem 0 1.5rem;
}

.tool-card-nexus, .tool-card-cool, .bios-tool-card, .diag-tool-card, .mistake-card, .step-card {
    background: rgba(15, 21, 28, 0.8);
    border-radius: 1.2rem;
    padding: 1rem 0.6rem;
    text-align: center;
    transition: all 0.2s ease;
    border: 1px solid #28323e;
    cursor: pointer;
}

.tool-card-nexus:hover, .tool-card-cool:hover, .bios-tool-card:hover,
.diag-tool-card:hover, .mistake-card:hover, .step-card:hover {
    border-color: var(--secondary);
    transform: scale(1.02);
    background: #121c24;
}

.mistake-card:hover {
    border-color: var(--warning);
}

/* Cheatsheet section */
.cheatsheet-section {
    margin: 2rem 0;
    background: linear-gradient(145deg, rgba(0,212,255,0.05), rgba(138,43,226,0.08));
    border-radius: 32px;
    padding: 1.2rem 1.5rem;
    border: 1px solid rgba(0,212,255,0.25);
    backdrop-filter: blur(4px);
}

.cheatsheet-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: var(--secondary);
    border-left: 4px solid var(--success);
    padding-left: 1rem;
}

.cheatsheet-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(0,0,0,0.35);
    border-radius: 20px;
    overflow: hidden;
}

.cheatsheet-table th, .cheatsheet-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid rgba(0,212,255,0.2);
    vertical-align: top;
}

.cheatsheet-table th {
    background: rgba(0,212,255,0.15);
    color: var(--secondary);
    font-weight: 700;
}

/* Director metafora */
.director-metafora {
    background: linear-gradient(145deg, rgba(0,212,255,0.08), rgba(138,43,226,0.12));
    border-radius: 28px;
    padding: 1.8rem;
    margin-top: 1.8rem;
    border: 1px solid rgba(0,212,255,0.3);
}

.metafora-header {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--success);
}

/* Step list */
.step-list {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin: 1rem 0;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(0,0,0,0.35);
    padding: 0.6rem 1rem;
    border-radius: 40px;
}

.step-number {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--secondary), #3a6ea5);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

/* Golden rule */
.golden-rule {
    background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(138,43,226,0.2));
    border-radius: 60px;
    padding: 0.7rem 1.5rem;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 1rem;
}

/* Speed footer */
.speed-footer {
    background: rgba(0,212,255,0.12);
    border-radius: 40px;
    padding: 0.7rem;
    text-align: center;
    margin-top: 1rem;
}

/* Buttons */
.cta-button {
    background: linear-gradient(95deg, #1b4e44, #0b3b33);
    border: none;
    padding: 1rem 2.8rem;
    font-size: 1.25rem;
    font-weight: 800;
    border-radius: 60px;
    color: white;
    cursor: pointer;
    transition: 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    border: 1px solid rgba(46, 255, 212, 0.5);
}

.cta-button:hover {
    background: linear-gradient(95deg, #2a7062, #0f554a);
    transform: scale(1.02);
    box-shadow: 0 10px 20px -5px #2effd470;
}

/* Highlight animations */
.highlight-tools, .highlight-cool, .highlight-bios, .highlight-diag, .highlight-mistakes, .highlight-os {
    animation: highlightFlash 0.6s ease 2;
}

@keyframes highlightFlash {
    0% { background-color: rgba(0, 212, 255, 0); border-color: #00D4FF; }
    50% { background-color: rgba(0, 212, 255, 0.2); box-shadow: 0 0 8px #00D4FF; }
    100% { background-color: rgba(0, 212, 255, 0); border-color: #00D4FF; }
}

/* Responsive */
@media (max-width: 1200px) {
    .guide-layout { grid-template-columns: 1fr; }
    h1 { font-size: 2.4rem; }
    .container { padding: 1.5rem; }
    .cable-hero, .cooling-hero, .bios-hero, .diag-hero, .mistakes-hero, .os-hero {
        flex-direction: column;
        text-align: center;
    }
    .cable-definition-box, .cooling-definition-box, .bios-definition-box,
    .diag-definition-box, .mistakes-definition-box, .os-definition-box {
        text-align: center;
        width: 100%;
    }
    .cable-image-container, .cooling-image-container, .bios-image-container,
    .diag-image-container, .mistakes-image-container, .os-image-container {
        width: 440px;
        margin: 0 auto;
    }
}

@media (max-width: 650px) {
    .cable-image-container, .cooling-image-container, .bios-image-container,
    .diag-image-container, .mistakes-image-container, .os-image-container {
        width: 340px;
    }
}