:root {
    --bg-dark: #0a0a0a;
    --bg-card: #111111;
    --bg-card-hover: #1a1a1a;
    --accent: #FF3C00;
    --accent-glow: #FF5722;
    --accent-yellow: #FFD600;
    --accent-green: #00E676;
    --text-primary: #F5F5F5;
    --text-secondary: #999;
    --text-muted: #555;
    --border: #222;
    --border-accent: #333;
    --glass: rgba(255, 255, 255, 0.03);
    --radius: 6px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Barlow', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ========== NOISE OVERLAY ========== */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

/* ========== HEADER ========== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 40px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}

header.scrolled {
    height: 60px;
    border-bottom-color: var(--accent);
    box-shadow: 0 2px 40px rgba(255, 60, 0, 0.08);
}

.logo {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 32px;
    letter-spacing: 4px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.logo span {
    color: var(--accent);
    display: inline-block;
}

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

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.4); }
}

nav {
    display: flex;
    gap: 32px;
    align-items: center;
}

nav a {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-secondary);
    text-decoration: none;
    position: relative;
    transition: color 0.3s;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

.btn-cta {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 10px 24px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

.btn-cta:hover {
    background: var(--accent-glow);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(255, 60, 0, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* ========== HERO ========== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 120px 40px 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 80%, rgba(255, 60, 0, 0.12) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 20%, rgba(255, 87, 34, 0.06) 0%, transparent 50%),
        linear-gradient(180deg, var(--bg-dark) 0%, #060606 100%);
}

.hero-lines {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-lines::before,
.hero-lines::after {
    content: '';
    position: absolute;
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, transparent, var(--border), transparent);
}

.hero-lines::before { left: 20%; }
.hero-lines::after { left: 80%; }

.hero-content {
    position: relative;
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 32px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero-badge::before,
.hero-badge::after {
    content: '';
    width: 24px;
    height: 1px;
    background: var(--accent);
}

.hero h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(56px, 10vw, 120px);
    line-height: 0.95;
    letter-spacing: 4px;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards 0.4s;
}

.hero h1 .outline {
    -webkit-text-stroke: 1.5px var(--text-primary);
    color: transparent;
}

.hero h1 .accent {
    color: var(--accent);
}

.hero-sub {
    font-size: 18px;
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 560px;
    margin: 0 auto 48px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.6s;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 64px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.8s ease forwards 0.8s;
}

.hero-stat h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 48px;
    color: var(--accent);
    line-height: 1;
}

.hero-stat p {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-top: 4px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 1s;
}

.scroll-indicator span {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 10px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--accent), transparent);
    animation: scrollPulse 2s ease infinite;
}

@keyframes scrollPulse {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
}

/* ========== SECTIONS ========== */
section {
    padding: 100px 40px;
    position: relative;
}

.section-header {
    margin-bottom: 60px;
}

.section-label {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 12px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(36px, 5vw, 56px);
    letter-spacing: 2px;
    line-height: 1;
}

.section-divider {
    width: 60px;
    height: 2px;
    background: var(--accent);
    margin-top: 20px;
}

/* ========== FILTERS ========== */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-btn {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 8px 20px;
    border: 1px solid var(--border-accent);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
}

.filter-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.filter-btn.active {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255, 60, 0, 0.08);
}

.filter-select {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 8px 36px 8px 16px;
    border: 1px solid var(--border-accent);
    background: var(--bg-dark);
    color: var(--text-secondary);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23999'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    transition: all 0.3s;
}

.filter-select:hover,
.filter-select:focus {
    border-color: var(--accent);
    color: var(--text-primary);
    outline: none;
}

/* ========== EVENT CARDS ========== */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 20px;
}

.event-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    cursor: pointer;
}

.event-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(255, 60, 0, 0.08);
}

.event-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--accent);
    transition: height 0.4s;
}

.event-card:hover::before {
    height: 100%;
}

.card-top {
    display: flex;
    align-items: stretch;
}

.card-date {
    flex-shrink: 0;
    width: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px 0;
    background: rgba(255, 60, 0, 0.05);
    border-right: 1px solid var(--border);
}

.card-date .day {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 40px;
    line-height: 1;
    color: var(--accent);
}

.card-date .month {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-top: 2px;
}

.card-date .weekday {
    font-family: 'Barlow', sans-serif;
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-top: 4px;
}

.card-info {
    flex: 1;
    padding: 20px 24px;
}

.card-info h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22px;
    letter-spacing: 1px;
    margin-bottom: 8px;
    transition: color 0.3s;
}

.event-card:hover .card-info h3 {
    color: var(--accent);
}

.card-track {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.card-track svg {
    flex-shrink: 0;
}

.card-org {
    font-size: 12px;
    color: var(--text-muted);
}

.card-meta {
    display: flex;
    gap: 16px;
    padding: 12px 24px;
    border-top: 1px solid var(--border);
}

.meta-tag {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 2px;
}

.card-price {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 18px;
    color: var(--text-primary);
    margin-left: auto;
    display: flex;
    align-items: center;
}

.card-price small {
    font-family: 'Barlow', sans-serif;
    font-size: 10px;
    color: var(--text-muted);
    margin-right: 4px;
}

/* ========== CIRCUITOS ========== */
.tracks-scroll {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding-bottom: 20px;
    scroll-snap-type: x mandatory;
}

.tracks-scroll::-webkit-scrollbar {
    height: 3px;
}

.tracks-scroll::-webkit-scrollbar-thumb {
    background: var(--accent);
}

.track-card {
    flex-shrink: 0;
    width: 280px;
    scroll-snap-align: start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 28px 24px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.track-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.track-card .track-icon {
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--accent);
}

.track-card h4 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 20px;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.track-card .track-location {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.track-card .track-details {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.6;
}

.track-card .track-length {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 28px;
    color: var(--accent);
    position: absolute;
    top: 24px;
    right: 24px;
    line-height: 1;
}

.track-length small {
    font-family: 'Barlow', sans-serif;
    font-size: 10px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* ========== MODAL ========== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    max-width: 560px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: modalIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-accent);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all 0.3s;
    z-index: 1;
}

.modal-close:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.modal-header {
    padding: 32px 32px 0;
    border-bottom: 1px solid var(--border);
    padding-bottom: 24px;
}

.modal-header .modal-date {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
}

.modal-header h2 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 32px;
    letter-spacing: 1px;
}

.modal-body {
    padding: 24px 32px 32px;
}

.modal-detail {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.modal-detail:last-child {
    border-bottom: none;
}

.modal-detail svg {
    flex-shrink: 0;
    color: var(--accent);
    margin-top: 2px;
}

.modal-detail .label {
    font-size: 11px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.modal-detail .value {
    font-size: 14px;
    color: var(--text-primary);
}

.modal-footer {
    padding: 0 32px 32px;
    display: flex;
    gap: 12px;
}

.btn-inscrever {
    flex: 1;
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: center;
    text-decoration: none;
    background: var(--accent);
    color: #fff;
    border: none;
    padding: 14px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-inscrever:hover {
    background: var(--accent-glow);
    box-shadow: 0 4px 20px rgba(255, 60, 0, 0.3);
}

.btn-outline {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-accent);
    padding: 14px 24px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-outline:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

/* ========== NEWSLETTER ========== */
.newsletter {
    background: linear-gradient(135deg, rgba(255, 60, 0, 0.08) 0%, transparent 50%);
    border: 1px solid var(--border);
    padding: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    margin: 0 40px 100px;
}

.newsletter h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 32px;
    letter-spacing: 2px;
}

.newsletter p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 8px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.newsletter-form input {
    font-family: 'Barlow', sans-serif;
    font-size: 14px;
    padding: 12px 20px;
    background: var(--bg-dark);
    border: 1px solid var(--border-accent);
    color: var(--text-primary);
    width: 280px;
    transition: border-color 0.3s;
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--accent);
}

.newsletter-form input::placeholder {
    color: var(--text-muted);
}

/* ========== FOOTER ========== */
footer {
    border-top: 1px solid var(--border);
    padding: 60px 40px 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 16px;
    font-size: 28px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 280px;
}

footer h5 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

footer ul {
    list-style: none;
}

footer ul li {
    margin-bottom: 10px;
}

footer ul a {
    font-size: 13px;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

footer ul a:hover {
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s;
}

.footer-socials a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ========== ANIMATIONS ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ========== NO RESULTS ========== */
.no-results {
    text-align: center;
    padding: 80px 20px;
    display: none;
}

.no-results h3 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 28px;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.no-results p {
    color: var(--text-muted);
    font-size: 14px;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    header { padding: 0 20px; }

    .hamburger { display: flex; }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-card);
        flex-direction: column;
        padding: 80px 32px 32px;
        gap: 24px;
        transition: right 0.4s;
        border-left: 1px solid var(--border);
    }

    nav.open { right: 0; }

    section { padding: 60px 20px; }

    .hero { padding: 100px 20px 60px; }

    .hero-stats { gap: 32px; }

    .events-grid { grid-template-columns: 1fr; }

    .newsletter {
        flex-direction: column;
        margin: 0 20px 60px;
        padding: 32px;
        text-align: center;
    }

    .newsletter-form {
        flex-direction: column;
        width: 100%;
    }

    .newsletter-form input { width: 100%; }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
    }

    .modal-overlay { padding: 20px; }
}

/* ========== TOAST ========== */
.toast {
    position: fixed;
    bottom: 32px;
    right: 32px;
    background: var(--bg-card);
    border: 1px solid var(--accent-green);
    padding: 16px 24px;
    font-size: 14px;
    color: var(--accent-green);
    z-index: 3000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ========== COUNTER ========== */
.events-counter {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 13px;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.events-counter span {
    color: var(--accent);
    font-weight: 700;
}