/* =======================================================
   RSU Islam Boyolali Fun Run 5K — Landing Page (BS4 base)
   ======================================================= */

:root {
    --primary:       #16a34a;
    --primary-dark:  #15803d;
    --primary-light: #22c55e;
    --primary-glow:  rgba(22, 163, 74, 0.25);
    --accent:        #f59e0b;
    --accent-dark:   #d97706;
    --text:          #1e293b;
    --text-muted:    #64748b;
    --white:         #ffffff;
    --bg:            #f0fdf4;
    --bg-section:    #f8fafc;
    --footer-bg:     #0f2d1a;
    --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:     0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.05);
    --shadow-lg:     0 10px 40px rgba(0,0,0,.12);
    --shadow-green:  0 8px 32px rgba(22, 163, 74, 0.25);
    --header-height: 72px;
    --radius-sm:     8px;
    --radius-md:     16px;
    --radius-lg:     24px;
    --radius-full:   9999px;
    --gradient:      linear-gradient(135deg, #16a34a 0%, #059669 60%, #0d9488 100%);
    --gradient-hero: linear-gradient(160deg, rgba(15,45,26,.88) 0%, rgba(5,150,105,.70) 100%);
    --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: "Poppins", sans-serif;
    line-height: 1.7;
    color: var(--text);
    background-color: var(--bg);
    padding-top: var(--header-height);
    overflow-x: hidden;
}

ul { list-style: none; padding-left: 0; margin: 0; }
a  { color: var(--primary); }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }

/* ---- Reveal animations ---- */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: none; }


/* ============================================================
   HEADER
============================================================ */
#main-header {
    background: transparent;
    box-shadow: none;
    padding: 0;
    position: fixed;
    top: 0; left: 0;
    z-index: 1030;
    width: 100%;
    height: var(--header-height);
    transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
#main-header.scrolled {
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0,0,0,.08);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo img {
    height: 48px;
    max-height: calc(var(--header-height) - 20px);
    transition: transform var(--transition);
    object-fit: contain;
}
.logo:hover img { transform: scale(1.04); }

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0;
}
.main-nav ul li a {
    color: var(--white);
    font-weight: 600;
    font-size: .9rem;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    transition: background var(--transition), color var(--transition);
    text-shadow: 0 1px 4px rgba(0,0,0,.4);
    display: block;
}
.main-nav ul li a:hover {
    background: rgba(255,255,255,.18);
    color: var(--white);
    text-shadow: none;
}
#main-header.scrolled .main-nav ul li a {
    color: var(--text);
    text-shadow: none;
}
#main-header.scrolled .main-nav ul li a:hover {
    background: var(--bg);
    color: var(--primary);
}

.btn-register-nav {
    background: rgba(255,255,255,.92) !important;
    color: var(--primary) !important;
    padding: 8px 22px !important;
    border-radius: var(--radius-full) !important;
    font-weight: 700 !important;
    font-size: .88rem !important;
    text-shadow: none !important;
    border: none !important;
    box-shadow: 0 2px 12px rgba(0,0,0,.15);
    transition: background var(--transition), transform var(--transition), box-shadow var(--transition) !important;
}
.btn-register-nav:hover {
    background: var(--white) !important;
    color: var(--primary-dark) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 18px rgba(0,0,0,.18) !important;
}
#main-header.scrolled .btn-register-nav {
    background: var(--gradient) !important;
    color: var(--white) !important;
}
#main-header.scrolled .btn-register-nav:hover {
    box-shadow: var(--shadow-green) !important;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.7rem;
    cursor: pointer;
    width: 42px; height: 42px;
    border-radius: var(--radius-sm);
    transition: background var(--transition), color var(--transition);
    align-items: center;
    justify-content: center;
}
#main-header.scrolled .menu-toggle { color: var(--text); }
.menu-toggle:hover { background: rgba(255,255,255,.15); }


/* ============================================================
   HERO
============================================================ */
#hero {
    position: relative;
    height: calc(100vh - var(--header-height));
    min-height: 560px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    overflow: hidden;
}

#hero-slider { position: absolute; inset: 0; z-index: 1; }
#hero-slider .slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.6s ease-in-out;
    transform: scale(1.04);
    animation: kenBurns 8s ease-in-out infinite alternate;
}
@keyframes kenBurns {
    from { transform: scale(1); }
    to   { transform: scale(1.06); }
}
#hero-slider .slide.active { opacity: 1; }

.hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 2;
}

.hero-deco { position: absolute; inset: 0; z-index: 3; pointer-events: none; overflow: hidden; }
.hero-deco span {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,.12);
    animation: float 6s ease-in-out infinite;
}
.hero-deco span:nth-child(1) { width:320px; height:320px; top:-80px;   right:-80px; animation-delay:0s; }
.hero-deco span:nth-child(2) { width:200px; height:200px; bottom:40px;  left:-60px; animation-delay:2s; }
.hero-deco span:nth-child(3) { width:120px; height:120px; bottom:100px; right:10%;  animation-delay:4s; }

@keyframes float {
    0%,100% { transform: translateY(0); }
    50%     { transform: translateY(-18px); }
}

.hero-text {
    position: relative;
    z-index: 4;
    padding: 20px;
    max-width: 860px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,.18);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,.3);
    color: var(--white);
    font-size: .82rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: 6px 18px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
}
.hero-badge i { color: var(--accent); }

#hero h1 {
    font-size: clamp(2rem, 5vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    color: var(--white);
    text-shadow: 0 3px 16px rgba(0,0,0,.35);
    margin: 0;
}

#hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255,255,255,.9);
    margin: 0;
}

.event-date {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px 14px;
    background: rgba(255,255,255,.15);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(255,255,255,.25);
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: .92rem;
    line-height: 1;
}
.event-date span { display: inline-flex; align-items: center; gap: 6px; white-space: nowrap; }
.event-date i { color: var(--accent); font-size: .9em; }
.event-date-sep { color: rgba(255,255,255,.4); font-weight: 300; }

.btn-hero {
    display: inline-block;
    padding: 14px 40px;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-weight: 700;
    font-size: 1.05rem;
    text-align: center;
    text-decoration: none;
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 8px 32px rgba(0,0,0,.25);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), color var(--transition);
}
.btn-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient);
    opacity: 0;
    transition: opacity var(--transition);
}
.btn-hero:hover {
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,.3);
    text-decoration: none;
}
.btn-hero:hover::before { opacity: 1; }
.btn-hero span { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 10px; }

/* Slider dots */
.slider-dots {
    position: absolute;
    bottom: 28px; left: 50%;
    transform: translateX(-50%);
    z-index: 5;
    display: flex;
    gap: 8px;
}
.slider-dot {
    width: 8px; height: 8px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,.45);
    cursor: pointer;
    transition: background var(--transition), width var(--transition);
    border: none;
    padding: 0;
}
.slider-dot.active { background: var(--white); width: 24px; }


/* ============================================================
   COUNTDOWN
============================================================ */
#countdown {
    background: var(--gradient);
    padding: 56px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
#countdown::before {
    content: '';
    position: absolute;
    top: -50%; left: -10%;
    width: 120%; height: 200%;
    background: radial-gradient(ellipse at center, rgba(255,255,255,.06) 0%, transparent 70%);
    pointer-events: none;
}

.countdown-label {
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: rgba(255,255,255,.75);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.countdown-label i { color: var(--accent); }

.countdown-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}
.countdown-box {
    background: rgba(255,255,255,.12);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: var(--radius-md);
    padding: 20px 28px;
    min-width: 100px;
    transition: transform var(--transition);
}
.countdown-box:hover { transform: translateY(-4px); }
.countdown-box .num {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    display: block;
}
.countdown-box .unit {
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: rgba(255,255,255,.7);
    margin-top: 6px;
    display: block;
}
.countdown-sep {
    font-size: 2.5rem;
    font-weight: 800;
    color: rgba(255,255,255,.5);
    line-height: 1;
    margin-bottom: 16px;
}


/* ============================================================
   SECTION BASE
============================================================ */
.content-section {
    padding: 96px 24px;
    text-align: center;
}
.section-header { margin-bottom: 56px; }

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(22,163,74,.1);
    color: var(--primary);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 14px;
}

.content-section h2 {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    color: var(--text);
    margin-bottom: 16px;
    line-height: 1.2;
}
.content-section h2 .highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-divider {
    width: 56px; height: 4px;
    background: var(--gradient);
    border-radius: var(--radius-full);
    margin: 0 auto 20px;
}
.section-desc {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
}


/* ============================================================
   ABOUT
============================================================ */
#about { background: var(--white); }
.about-grid { margin-top: 48px; }

.about-card {
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    border: 1px solid rgba(22,163,74,.1);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
    height: 100%;
    margin-bottom: 24px;
}
.about-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform var(--transition);
}
.about-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(22,163,74,.2);
}
.about-card:hover::before { transform: scaleX(1); }

.about-icon {
    width: 64px; height: 64px;
    background: var(--gradient);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.6rem;
    color: var(--white);
    box-shadow: var(--shadow-green);
    transition: transform var(--transition);
}
.about-card:hover .about-icon { transform: rotate(-6deg) scale(1.1); }

.about-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 10px;
}
.about-card p {
    font-size: .93rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin: 0;
}


/* ============================================================
   ROUTE
============================================================ */
#route { background: var(--bg); }

.route-map {
    margin: 40px auto 32px;
    position: relative;
    display: inline-block;
    width: 100%;
    cursor: zoom-in;
}
.route-map img {
    max-width: 840px;
    width: 100%;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 4px solid var(--white);
}

.route-info {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 32px;
}
.route-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid rgba(22,163,74,.2);
    color: var(--text);
    font-size: .88rem;
    font-weight: 600;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}
.route-badge i { color: var(--primary); }


/* ============================================================
   RACEPACK
============================================================ */
#racepack { background: var(--white); }

.racepack-items {
    display: flex;
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
    gap: 28px;
    margin-top: 48px;
}
.racepack-item {
    flex: 0 1 240px;
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 0;
    overflow: hidden;
    border: 1px solid rgba(22,163,74,.1);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
}
.racepack-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 48px rgba(22,163,74,.18);
}

.racepack-img-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1/1;
    display: block;
    cursor: zoom-in;
}
.racepack-img-wrap img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}
.racepack-item:hover .racepack-img-wrap img { transform: scale(1.08); }

.racepack-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,45,26,.6) 0%, transparent 55%);
    opacity: 0;
    transition: opacity var(--transition);
}
.racepack-item:hover .racepack-overlay,
.route-map:hover .racepack-overlay { opacity: 1; }

.lightbox-icon {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) scale(0.7);
    font-size: 2rem;
    color: var(--white);
    opacity: 0;
    transition: opacity var(--transition), transform var(--transition);
    z-index: 2;
    pointer-events: none;
}
.racepack-item:hover .lightbox-icon,
.route-map:hover .lightbox-icon {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.racepack-label {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.racepack-label i { color: var(--primary); font-size: 1.1rem; }
.racepack-label p {
    font-weight: 700;
    font-size: .95rem;
    color: var(--text);
    margin: 0;
}


/* ============================================================
   GALLERY
============================================================ */
#gallery { background: var(--bg-section); }

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 48px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-md);
    aspect-ratio: 1 / 1;
    display: block;
    cursor: zoom-in;
    box-shadow: var(--shadow-md);
    border: 3px solid var(--white);
    transition: transform var(--transition), box-shadow var(--transition);
}

.gallery-item:nth-child(1) { transition-delay: .05s; }
.gallery-item:nth-child(2) { transition-delay: .11s; }
.gallery-item:nth-child(3) { transition-delay: .17s; }
.gallery-item:nth-child(4) { transition-delay: .23s; }
.gallery-item:nth-child(5) { transition-delay: .29s; }
.gallery-item:nth-child(6) { transition-delay: .35s; }
.gallery-item:nth-child(7) { transition-delay: .41s; }
.gallery-item:nth-child(8) { transition-delay: .47s; }

.gallery-item:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 48px rgba(22, 163, 74, .2);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

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

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 45, 26, .7) 0%, rgba(15, 45, 26, .2) 100%);
    opacity: 0;
    transition: opacity var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.gallery-zoom-icon {
    font-size: 2rem;
    color: var(--white);
    transform: scale(0.7);
    transition: transform var(--transition);
}

.gallery-item:hover .gallery-zoom-icon { transform: scale(1); }

.gallery-item.gallery-hidden { display: none; }

/* Pagination */
.gallery-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
}

.gp-num {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 2px solid rgba(22, 163, 74, .25);
    background: var(--white);
    color: var(--text-muted);
    font-family: "Poppins", sans-serif;
    font-size: .88rem;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.gp-num:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.gp-num.active {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
    box-shadow: var(--shadow-green);
}

.gp-nav {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 2px solid rgba(22, 163, 74, .25);
    background: var(--white);
    color: var(--primary);
    font-size: .9rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.gp-nav:hover:not(:disabled) {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.gp-nav:disabled {
    opacity: .35;
    cursor: not-allowed;
}

@media (max-width: 992px) {
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}

@media (max-width: 480px) {
    .gallery-grid { gap: 8px; }
}


/* ============================================================
   REGISTER CTA
============================================================ */
#register {
    background: var(--gradient);
    padding: 100px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
#register::before, #register::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,.06);
    pointer-events: none;
}
#register::before { width:500px; height:500px; top:-200px;    right:-150px; }
#register::after  { width:350px; height:350px; bottom:-120px; left:-100px; }

.register-inner { position: relative; z-index: 1; }

.register-icon {
    width: 80px; height: 80px;
    background: rgba(255,255,255,.15);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin: 0 auto 28px;
    border: 2px solid rgba(255,255,255,.25);
    animation: pulse-ring 2.4s ease-in-out infinite;
}
@keyframes pulse-ring {
    0%,100% { box-shadow: 0 0 0 0 rgba(255,255,255,.3); }
    50%     { box-shadow: 0 0 0 20px rgba(255,255,255,0); }
}

#register h2 { color: var(--white); }
#register h2 .highlight {
    color: var(--accent);
    -webkit-text-fill-color: var(--accent);
    background: none;
    text-shadow: 0 2px 12px rgba(245, 158, 11, 0.4);
}
#register .section-desc { color: rgba(255,255,255,.85); max-width: 560px; }
#register .section-divider { background: rgba(255,255,255,.4); margin-bottom: 24px; }

.btn-register-main {
    display: inline-block;
    background: var(--white);
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 1.1rem;
    padding: 16px 48px;
    margin-top: 32px;
    box-shadow: 0 8px 32px rgba(0,0,0,.25);
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition), color var(--transition);
    text-decoration: none;
}
.btn-register-main::after {
    content: '';
    position: absolute;
    top: 50%; left: 50%;
    width: 0; height: 0;
    background: rgba(22,163,74,.12);
    border-radius: 50%;
    transform: translate(-50%,-50%);
    transition: width .6s ease, height .6s ease;
}
.btn-register-main:hover::after { width: 400px; height: 400px; }
.btn-register-main:hover {
    box-shadow: 0 12px 40px rgba(0,0,0,.35);
    color: var(--primary-dark);
    transform: translateY(-3px);
    text-decoration: none;
}
.btn-register-main i { margin-left: 8px; transition: transform var(--transition); }
.btn-register-main:hover i { transform: translateX(4px); }

.register-note {
    margin-top: 20px;
    font-size: .82rem;
    color: rgba(255,255,255,.65);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.register-note i { color: var(--accent); }


/* ============================================================
   FOOTER
============================================================ */
footer {
    background: var(--footer-bg);
    color: rgba(255,255,255,.6);
    padding: 48px 0 32px;
}
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}
.footer-logo img {
    height: 44px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: .8;
    margin: 0 auto;
    transition: opacity var(--transition);
}
.footer-logo img:hover { opacity: 1; }
.footer-tagline {
    font-size: .88rem;
    color: rgba(255,255,255,.45);
    margin-top: 6px;
}
.social-media { display: flex; gap: 12px; }
.social-media a {
    width: 42px; height: 42px;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,.65);
    font-size: 1.1rem;
    transition: background var(--transition), color var(--transition), transform var(--transition), border-color var(--transition);
}
.social-media a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}
.footer-divider {
    width: 100%;
    max-width: 400px;
    height: 1px;
    background: rgba(255,255,255,.08);
}
.footer-copy {
    font-size: .82rem;
    color: rgba(255,255,255,.35);
    margin: 0;
}


/* ============================================================
   SCROLL TOP BUTTON
============================================================ */
#scrollTopBtn {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 999;
    background: var(--gradient);
    color: var(--white);
    border: none;
    cursor: pointer;
    width: 48px; height: 48px;
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    box-shadow: var(--shadow-green);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}
#scrollTopBtn.show { opacity: 1; visibility: visible; }
#scrollTopBtn:hover { transform: translateY(-4px); }


/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 992px) {
    #hero h1 { font-size: 2.8rem; }
    .content-section { padding: 72px 20px; }
    .countdown-box .num { font-size: 2.4rem; }
    .countdown-box { padding: 16px 22px; min-width: 86px; }
}

@media (max-width: 768px) {
    body { padding-top: 0; }

    #main-header { position: fixed; height: 60px; }
    :root { --header-height: 60px; }

    #main-header .main-nav {
        display: none;
        position: absolute;
        top: 60px; left: 0;
        width: 100%;
        background: rgba(255,255,255,.98);
        backdrop-filter: blur(12px);
        box-shadow: 0 8px 24px rgba(0,0,0,.1);
        padding: 12px 0 20px;
        border-top: 1px solid rgba(0,0,0,.06);
    }
    #main-header .main-nav.active { display: block; }

    #main-header .main-nav ul {
        flex-direction: column;
        gap: 0;
        align-items: stretch;
    }
    #main-header .main-nav ul li a {
        color: var(--text) !important;
        text-shadow: none !important;
        padding: 12px 24px;
        border-radius: 0;
        font-size: .95rem;
    }
    #main-header .main-nav ul li a:hover {
        background: var(--bg) !important;
        color: var(--primary) !important;
    }
    .btn-register-nav {
        display: block !important;
        width: calc(100% - 48px);
        margin: 12px 24px 4px !important;
        text-align: center;
        background: var(--gradient) !important;
        color: var(--white) !important;
    }

    .menu-toggle { display: flex; }
    .logo img { height: 36px; }

    #hero { height: 80vh; min-height: 480px; }
    #hero h1 { font-size: clamp(1.6rem, 6vw, 2.2rem); }
    #hero p  { font-size: .95rem; }
    .event-date { font-size: .82rem !important; }
    .btn-hero { font-size: .95rem; padding: 12px 28px; }

    .content-section { padding: 64px 16px; }
    .content-section h2 { font-size: 1.75rem; }

    .countdown-grid { gap: 10px; }
    .countdown-box { padding: 14px 16px; min-width: 76px; }
    .countdown-box .num { font-size: 2rem; }
    .countdown-sep { font-size: 1.8rem; }

    .racepack-item { flex: 0 1 calc(50% - 14px); }

    .btn-register-main { font-size: 1rem; padding: 14px 36px; }

    #scrollTopBtn { width: 42px; height: 42px; bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
    #hero h1 { font-size: 1.6rem; }
    .racepack-item { flex: 0 1 100%; }
    .countdown-sep { display: none; }
    .countdown-box { flex: 0 1 calc(50% - 10px); }
}