/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0A0A0A;
    --bg-secondary: #111111;
    --bg-card: #1A1A1A;
    --accent: #00D4AA;
    --accent-light: #2CEBC4;
    --accent-glow: rgba(0, 212, 170, 0.2);
    --accent-glow-strong: rgba(0, 212, 170, 0.4);
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --border-color: #2A2A2A;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
}

/* ===== Global Reset ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Utility Classes ===== */
.text-accent {
    color: var(--accent) !important;
}

.bg-accent-subtle {
    background-color: rgba(0, 212, 170, 0.15) !important;
}

.text-secondary-custom {
    color: var(--text-secondary) !important;
}

.bg-dark-primary {
    background-color: var(--bg-primary);
}

.bg-dark-secondary {
    background-color: var(--bg-secondary);
}

.section-padding {
    padding: 100px 0;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent);
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2.8rem;
    line-height: 1.2;
    margin-bottom: 16px;
    color: var(--text-primary);
}

/* ===== Buttons ===== */
.btn-accent {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #0A0A0A !important;
    border: none;
    font-family: var(--font-heading);
    font-weight: 700;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s ease;
}

.btn-accent:hover::before {
    left: 100%;
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow-strong);
    color: #0A0A0A !important;
}

.btn-outline-light {
    border: 2px solid rgba(255,255,255,0.3);
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: transparent !important;
}

.btn-outline-light:hover {
    border-color: var(--accent);
    color: var(--accent) !important;
    background: transparent !important;
    transform: translateY(-2px);
}

/* ===== Navbar ===== */
.navbar {
    padding: 16px 0;
    transition: all 0.4s ease;
    background: transparent;
    z-index: 9999;
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98) !important;
    backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 2px;
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.7) !important;
    padding: 8px 16px !important;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent) !important;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 60%;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ===== Hero Section ===== */
.hero-section {
    min-height: 100vh;
    position: relative;
    background: url('img/bg.jpg') center center / cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    width: 100%;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 10, 0.5) 0%,
        rgba(10, 10, 10, 0.7) 50%,
        rgba(10, 10, 10, 0.95) 100%
    );
    z-index: 1;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.hero-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0;
    animation: floatParticle 6s infinite;
}

@keyframes floatParticle {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    20% {
        opacity: 0.8;
    }
    100% {
        opacity: 0;
        transform: translateY(-20vh) scale(1);
    }
}

.z-2 {
    z-index: 2;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 5rem;
    letter-spacing: 6px;
    text-transform: uppercase;
    line-height: 1.1;
    margin-bottom: 16px;
    text-shadow: 0 0 60px var(--accent-glow);
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Countdown */
.hero-countdown {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: 12px;
    padding: 16px 24px;
    min-width: 90px;
    backdrop-filter: blur(10px);
}

.countdown-value {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 2.2rem;
    color: var(--accent);
    line-height: 1;
}

.countdown-label {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Hero Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.animate-bounce {
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-12px);
    }
    60% {
        transform: translateY(-6px);
    }
}

/* ===== About Section ===== */
.about-image-wrapper {
    position: relative;
}

.about-image-wrapper img {
    transition: transform 0.5s ease;
}

.about-image-wrapper:hover img {
    transform: scale(1.02);
}

.about-image-badge {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background: var(--bg-card);
    border: 2px solid var(--accent);
    border-radius: 16px;
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.about-stat {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.about-stat:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

/* ===== Event Section ===== */
.event-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    transition: all 0.4s ease;
    max-width: 100%;
}

.event-card:hover {
    border-color: var(--accent);
    box-shadow: 0 20px 60px var(--accent-glow);
}

.event-card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.event-card:hover .event-card-glow {
    opacity: 1;
}

.event-date-block {
    background: linear-gradient(135deg, rgba(0,212,170,0.1), rgba(0,212,170,0.05));
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-right: 1px solid var(--border-color);
}

.event-mini-countdown {
    display: flex;
    gap: 8px;
}

.event-mini-countdown .mini-item {
    background: rgba(0,212,170,0.15);
    border-radius: 8px;
    padding: 6px 10px;
    text-align: center;
    min-width: 50px;
}

.event-mini-countdown .mini-value {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--accent);
    display: block;
    line-height: 1;
}

.event-mini-countdown .mini-label {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.event-detail-item {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    align-items: flex-start;
}

.event-detail-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background: rgba(0,212,170,0.1);
    border: 1px solid rgba(0,212,170,0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
}

/* ===== Features Section ===== */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px 28px;
    height: 100%;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 50px var(--accent-glow);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(0,212,170,0.15), rgba(0,212,170,0.05));
    border: 1px solid rgba(0,212,170,0.3);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #0A0A0A;
    transform: scale(1.1);
}

/* ===== Gallery Section ===== */
.gallery-item {
    position: relative;
    display: block;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
}

.gallery-item img {
    transition: transform 0.5s ease;
    object-fit: cover;
    height: 300px;
}

.col-md-6 .gallery-item img {
    height: 350px;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 212, 170, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.4s ease;
    color: #FFFFFF;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

/* ===== Contact Section ===== */
.contact-info-block {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 36px;
    height: 100%;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    margin-bottom: 24px;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: rgba(0,212,170,0.1);
    border: 1px solid rgba(0,212,170,0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.2rem;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: #0A0A0A;
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--accent-glow);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 36px;
}

.custom-input {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
    border-radius: 12px !important;
    font-family: var(--font-body);
    transition: all 0.3s ease;
}

.custom-input:focus {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 3px var(--accent-glow) !important;
}

.form-floating > label {
    color: var(--text-secondary) !important;
    font-family: var(--font-body);
}

.alert-success-custom {
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

/* ===== Footer ===== */
.footer-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
}

.footer-brand {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.3rem;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.3s ease;
}

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

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: #0A0A0A;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    z-index: 1000;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    color: #0A0A0A;
    box-shadow: 0 8px 30px var(--accent-glow-strong);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ===== Selection ===== */
::selection {
    background: var(--accent);
    color: #0A0A0A;
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .hero-title {
        font-size: 3.5rem;
        letter-spacing: 3px;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .section-padding {
        padding: 70px 0;
    }

    .navbar-collapse {
        background: rgba(10, 10, 10, 0.99);
        border-radius: 12px;
        padding: 20px;
        margin-top: 12px;
        border: 1px solid var(--border-color);
        position: absolute;
        top: 100%;
        left: 12px;
        right: 12px;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
        z-index: 9999;
    }

    .navbar-collapse .nav-link {
        padding: 12px 16px !important;
        font-size: 1rem;
    }

    .navbar-collapse .btn-accent {
        display: inline-block;
        margin-top: 8px;
    }

    .navbar-toggler {
        position: relative;
        z-index: 10000;
    }

    .event-date-block {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .about-image-badge {
        bottom: -10px;
        right: 10px;
    }

    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
}

@media (max-width: 767.98px) {
    .hero-title {
        font-size: 2.5rem;
        letter-spacing: 2px;
        word-break: break-word;
    }

    .hero-subtitle {
        font-size: 1rem;
        padding: 0 8px;
    }

    .countdown-item {
        padding: 12px 16px;
        min-width: 70px;
    }

    .countdown-value {
        font-size: 1.6rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .section-padding {
        padding: 50px 0;
    }

    .gallery-item img,
    .col-md-6 .gallery-item img {
        height: 220px;
    }

    .contact-info-block,
    .contact-form-wrapper {
        padding: 20px;
    }

    .feature-card {
        padding: 24px 20px;
    }

    .event-card .row {
        flex-direction: column;
    }

    .event-details {
        padding: 20px !important;
    }

    .about-image-badge {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: 16px;
        display: inline-flex;
    }

    .social-links {
        flex-wrap: wrap;
    }

    .d-flex.gap-3 {
        flex-direction: column;
        align-items: center;
    }

    .d-flex.gap-3 .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 575.98px) {
    .hero-title {
        font-size: 1.8rem;
        letter-spacing: 1px;
    }

    .hero-countdown {
        gap: 8px;
    }

    .countdown-item {
        padding: 8px 10px;
        min-width: 55px;
    }

    .countdown-value {
        font-size: 1.2rem;
    }

    .countdown-label {
        font-size: 0.65rem;
        letter-spacing: 1px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-tag {
        font-size: 0.75rem;
        letter-spacing: 2px;
    }

    .event-mini-countdown {
        flex-wrap: wrap;
        justify-content: center;
    }

    .event-mini-countdown .mini-item {
        min-width: 42px;
        padding: 4px 6px;
    }

    .contact-info-block,
    .contact-form-wrapper {
        padding: 16px;
        border-radius: 12px;
    }

    .contact-info-item {
        gap: 12px;
    }

    .contact-info-icon {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: 1rem;
    }

    .btn-lg {
        font-size: 0.95rem;
        padding: 10px 20px !important;
    }

    .gallery-item img,
    .col-md-6 .gallery-item img {
        height: 180px;
    }

    .navbar-brand {
        font-size: 1.2rem;
    }
}