:root {
    --bg-color: #0d0d0d;
    --surface-color: #161616;
    --accent-color: #e63946;
    --accent-glow: rgba(230, 57, 70, 0.4);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.5);
    --border-color: rgba(255, 255, 255, 0.08);
    --font-display: 'Rajdhani', 'Helvetica Neue', Helvetica, sans-serif;
    --font-body: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --shadow-soft: 0 10px 40px rgba(0,0,0,0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.5;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Grid overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 800;
}

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- NAVBAR --- */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(13, 13, 13, 0.7);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.4s ease;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--accent-color);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.logo span {
    color: white;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    text-transform: uppercase;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    transition: all 0.3s ease;
    letter-spacing: 0.2em;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--accent-glow);
}

/* --- HERO (MAGAZINE STYLE) --- */
.hero-magazine {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 70px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 60% 40%, rgba(230, 57, 70, 0.15) 0%, transparent 60%);
    z-index: -1;
}

.hero-large-text {
    font-size: 15vw;
    line-height: 0.8;
    color: rgba(255,255,255,0.02);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    white-space: nowrap;
    z-index: 0;
}

/* --- SECTIONS --- */
section {
    padding: 120px 0;
}

.section-title {
    font-size: 4rem;
    line-height: 0.9;
    margin-bottom: 3rem;
    border-left: 8px solid var(--accent-color);
    padding-left: 2rem;
}

.section-subtitle {
    color: var(--accent-color);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.4em;
    margin-bottom: 1rem;
    display: block;
}

/* --- CARDS (TECH HARDWARE STYLE) --- */
.tech-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    position: relative;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.tech-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-color);
    transform: scaleX(0);
    transition: transform 0.4s ease;
    transform-origin: left;
}

.tech-card:hover::before {
    transform: scaleX(1);
}

/* --- RELIABILITY STARS --- */
.stars {
    display: inline-flex;
    gap: 2px;
    color: #ffd700;
}
.star-off {
    color: rgba(255,255,255,0.1);
}

/* --- BADGES --- */
.badge {
    padding: 0.3rem 0.8rem;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 2px;
}
.badge-green { background: #2ecc71; color: #000; }
.badge-yellow { background: #f1c40f; color: #000; }
.badge-red { background: #e63946; color: #fff; }

/* --- ACCORDION --- */
.engine-row {
    margin-bottom: 1rem;
    cursor: pointer;
}
.engine-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}
.engine-header:hover {
    border-color: var(--accent-color);
}

.expand-btn-ui {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.6rem 1.2rem;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.02);
    border-radius: 4px;
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.engine-header:hover .expand-btn-ui {
    border-color: var(--accent-color);
    color: white;
    background: rgba(230, 57, 70, 0.1);
}

.chevron-icon {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    opacity: 0.5;
}

.engine-row.active .chevron-icon {
    transform: rotate(180deg);
    opacity: 1;
    color: var(--accent-color);
}

.engine-row.active .expand-btn-ui {
    border-color: var(--accent-color);
    background: rgba(230, 57, 70, 0.1);
    color: white;
}

.engine-row.active .engine-header {
    border-color: var(--accent-color);
    background: rgba(230, 57, 70, 0.05);
}
.engine-details {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255,255,255,0.01);
    border: 1px solid transparent;
    border-top: none;
}
.engine-row.active .engine-details {
    max-height: 2000px;
    border-color: var(--border-color);
    padding: 2rem;
}

/* --- COMPARATOR STYLES --- */
.comparator-section {
    background: #111111;
    padding: 100px 0;
}

.engine-selector-container {
    position: relative;
    margin-bottom: 3rem;
}

.search-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #161616;
    border: 1px solid var(--border-color);
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.search-dropdown.active {
    display: block;
}

.dropdown-item {
    padding: 1rem;
    cursor: pointer;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    transition: background 0.2s;
}

.dropdown-item:hover {
    background: rgba(230, 57, 70, 0.1);
}

.selected-engines-tags {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.engine-tag {
    background: var(--surface-color);
    border: 1px solid var(--accent-color);
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.8rem;
}

.remove-tag {
    cursor: pointer;
    color: var(--accent-color);
    font-weight: 900;
}

/* --- QUICK COMPARE BUTTONS --- */
.quick-compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 4rem;
}

.quick-btn {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    padding: 1rem;
    color: var(--text-secondary);
    font-family: var(--font-display);
    font-size: 0.7rem;
    text-transform: uppercase;
    text-align: left;
    cursor: pointer;
    transition: all 0.3s;
}

.quick-btn:hover {
    background: rgba(255,255,255,0.08);
    color: white;
    border-color: var(--accent-color);
}

/* --- COMPARISON TABLE --- */
.comparison-table-wrapper {
    overflow-x: auto;
    margin-bottom: 5rem;
    border: 1px solid var(--border-color);
}

.comp-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.comp-table th, .comp-table td {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.comp-table th {
    background: #1a1a1a;
    font-family: var(--font-display);
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--accent-color);
    letter-spacing: 0.1em;
}

.comp-table .row-label {
    width: 200px;
    background: #0d0d0d;
    position: sticky;
    left: 0;
    z-index: 10;
}

/* --- RADAR CHART --- */
.radar-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 4rem 0;
}

#radarChart {
    max-width: 500px;
    width: 100%;
}

.radar-axis {
    stroke: rgba(255,255,255,0.1);
    stroke-width: 1;
}

.radar-label {
    fill: var(--text-secondary);
    font-size: 10px;
    font-family: var(--font-display);
    text-transform: uppercase;
}

.progress-container {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.05);
    margin-top: 0.5rem;
    position: relative;
}

.progress-bar {
    height: 100%;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- RESPONSIVE RADAR --- */
@media (max-width: 768px) {
    .radar-container {
        flex-direction: column;
    }
}

/* --- UTILS --- */
.btn {
    display: inline-block;
    padding: 1.2rem 3rem;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: white;
    color: black;
    box-shadow: 0 10px 30px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.2);
}

/* --- ANIMATIONS --- */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- MODAL --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: #000;
    padding: 4rem;
    max-width: 800px;
    width: 90%;
    border-top: 4px solid var(--accent-color);
}

/* --- FOOTER COPYRIGHT --- */
.footer-copyright {
    text-align: center;
    padding: 16px 5% 24px;
    border-top: 1px solid #111111;
    margin-top: 16px;
}

.footer-copyright p {
    font-family: 'Barlow', sans-serif;
    font-size: 12px;
    color: #333333;
    margin: 4px 0;
    line-height: 1.6;
}

.footer-disclaimer {
    font-size: 11px;
    color: #2a2a2a;
}

/* --- FOOTER COPYRIGHT --- */
.footer-copyright {
    text-align: center;
    padding: 16px 5% 24px;
    border-top: 1px solid #111111;
    margin-top: 16px;
}

.footer-copyright p {
    font-family: 'Barlow', sans-serif;
    font-size: 12px;
    color: #333333;
    margin: 4px 0;
    line-height: 1.6;
}

.footer-disclaimer {
    font-size: 11px;
    color: #2a2a2a;
}