:root {
    --primary-color: #2DD4BF; /* Aurora Cyan */
    --primary-hover: #14b8a6;
    --secondary-color: #A78BFA; /* Aurora Purple */
    --text-main: #E6F7FF;
    --text-light: rgba(230, 247, 255, 0.7);
    --bg-light: transparent;
    --bg-white: rgba(255, 255, 255, 0.06); /* Card 6% white opacity */
    --border-color: rgba(45, 212, 191, 0.3); /* Cyan thin border */
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background: linear-gradient(135deg, #04101A 0%, #061724 100%);
    background-attachment: fixed;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

/* Typography */
h1, h2, h3, h4 { color: var(--text-main); font-weight: 600; }

h1, h2, h3 {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

h1 { font-size: 3rem; margin-bottom: 20px; display: block; }
h2 { font-size: 2.2rem; text-align: center; margin-bottom: 40px; display: block; }
h3 { font-size: 1.4rem; margin-bottom: 15px; }

p { margin-bottom: 15px; color: var(--text-light); }
.text-center { text-align: center; }
.mt-30 { margin-top: 30px; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 24px;
    background-color: var(--primary-color);
    color: #04101A;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: background-color 0.2s, transform 0.1s, box-shadow 0.2s;
    text-align: center;
    border: none;
    cursor: pointer;
}
.btn:hover { background-color: var(--primary-hover); box-shadow: 0 0 15px rgba(45, 212, 191, 0.4); }
.btn:active { transform: scale(0.98); }
.btn-large { padding: 16px 40px; font-size: 1.1rem; border-radius: 10px; }

/* Header */
.header {
    background: rgba(4, 16, 26, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 rgba(45, 212, 191, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary-color); }
.logo a { text-decoration: none; color: inherit; }
.nav a {
    margin-right: 24px;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.2s;
}
.nav a:hover { color: var(--primary-color); }

/* Hero */
.hero {
    padding: 120px 0;
    background: transparent;
}
.hero p { font-size: 1.25rem; max-width: 700px; margin: 0 auto 40px; color: rgba(230, 247, 255, 0.9); }

/* Sections */
.section { padding: 80px 0; background: transparent; }
.bg-white { background: transparent; }

/* Grid Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.card {
    background: var(--bg-white);
    padding: 40px 30px;
    border-radius: 14px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
    backdrop-filter: blur(8px);
}
.card:hover { transform: translateY(-5px); border-color: var(--primary-color); box-shadow: 0 8px 32px rgba(45, 212, 191, 0.15); }
.icon { font-size: 3rem; margin-bottom: 20px; }

/* Media/AI Cards */
.media-card { text-align: left; background: rgba(255, 255, 255, 0.04); }
.media-card h3 { -webkit-text-fill-color: var(--primary-color); background: none; }

/* Pricing Cards */
.pricing-card {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.pricing-card h3 { font-size: 1.5rem; margin-bottom: 10px; background: none; -webkit-text-fill-color: var(--text-main); display: block; }
.pricing-card .price { font-size: 2.5rem; font-weight: bold; color: var(--primary-color); margin-bottom: 25px; }
.pricing-card .price span { font-size: 1.1rem; color: var(--text-light); font-weight: normal; }
.pricing-card ul { list-style: none; margin-bottom: 30px; text-align: left; padding: 0 10px; }
.pricing-card li { margin-bottom: 15px; display: flex; align-items: center; gap: 10px; color: var(--text-main); }
.pricing-card .badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: #04101A;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(45, 212, 191, 0.3);
    white-space: nowrap;
}
.pricing-card.highlight {
    border-color: var(--primary-color);
    box-shadow: 0 8px 32px rgba(45, 212, 191, 0.15);
    transform: scale(1.05);
    z-index: 2;
}
.check-icon { color: var(--primary-color); font-size: 1.2rem; font-weight: bold; }

@media (max-width: 768px) {
    .pricing-card.highlight { transform: scale(1); }
}

/* Reviews */
.review-text { font-style: italic; margin-bottom: 20px; font-size: 1.05rem; }

/* Sitemap Cards */
.sitemap-card {
    display: block;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(45, 212, 191, 0.2);
    padding: 15px 20px;
    border-radius: 10px;
    color: var(--text-main);
    text-align: center;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 0.95rem;
}
.sitemap-card:hover {
    background: rgba(45, 212, 191, 0.1);
    border-color: var(--primary-color);
    transform: translateY(-3px);
    color: #fff;
    box-shadow: 0 4px 15px rgba(45, 212, 191, 0.2);
}

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
    background: var(--bg-white);
    margin-bottom: 16px;
    padding: 24px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(8px);
}
.faq-item h4 { margin-bottom: 12px; font-size: 1.15rem; color: var(--primary-color); }
.faq-item p { margin-bottom: 0; }

/* Footer */
.footer {
    background: rgba(4, 16, 26, 0.9);
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 60px 0 40px;
    text-align: center;
    color: var(--text-light);
}
.footer-links { margin-bottom: 30px; }
.footer-links a {
    color: var(--text-main);
    text-decoration: none;
    margin: 0 20px;
    font-size: 0.95rem;
    transition: color 0.2s;
}
.footer-links a:hover { color: var(--primary-color); }
.footer p { font-size: 0.9rem; color: rgba(230, 247, 255, 0.4); }

/* Sub Pages */
.page-content {
    background: var(--bg-white);
    padding: 60px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    margin: 60px auto;
    max-width: 800px;
    backdrop-filter: blur(8px);
}
.page-content h2 { text-align: left; margin-bottom: 30px; }
.page-content h3 { margin: 30px 0 15px; font-size: 1.3rem; -webkit-text-fill-color: var(--primary-color); background: none; }
.page-content ul { margin-left: 20px; margin-bottom: 20px; }
.page-content li { margin-bottom: 10px; color: var(--text-light); }

/* ============================================================
   DECORATIVE BACKGROUND LAYER
   ============================================================ */
.bg-decoration {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.aurora {
    position: absolute;
    filter: blur(100px);
    opacity: 0.4;
    border-radius: 50%;
}
.aurora-1 {
    width: 60vw; height: 40vh;
    background: #2DD4BF;
    top: -10%; left: -10%;
    animation: aurora-move-1 13s infinite alternate ease-in-out;
}
.aurora-2 {
    width: 50vw; height: 50vh;
    background: #A78BFA;
    top: -20%; right: -10%;
    animation: aurora-move-2 17s infinite alternate ease-in-out;
}
.aurora-3 {
    width: 70vw; height: 30vh;
    background: #1d4ed8;
    bottom: -10%; left: 15%;
    animation: aurora-move-3 21s infinite alternate ease-in-out;
}

@keyframes aurora-move-1 {
    0% { transform: translate(0, 0) scale(1); opacity: 0.2; }
    100% { transform: translate(15%, 15%) scale(1.1); opacity: 0.5; }
}
@keyframes aurora-move-2 {
    0% { transform: translate(0, 0) scale(1); opacity: 0.2; }
    100% { transform: translate(-15%, 20%) scale(1.1); opacity: 0.5; }
}
@keyframes aurora-move-3 {
    0% { transform: translate(0, 0) scale(1); opacity: 0.2; }
    100% { transform: translate(10%, -15%) scale(1.2); opacity: 0.5; }
}

.star {
    position: absolute;
    width: 3px; height: 3px;
    background: #E6F7FF;
    border-radius: 50%;
    box-shadow: 0 0 8px 2px rgba(230, 247, 255, 0.8);
    animation: twinkle 3.5s infinite alternate ease-in-out;
}
.star:nth-child(4) { top: 15%; left: 15%; animation-delay: 0s; }
.star:nth-child(5) { top: 28%; left: 85%; animation-delay: -0.7s; }
.star:nth-child(6) { top: 65%; left: 8%; animation-delay: -1.4s; }
.star:nth-child(7) { top: 80%; left: 92%; animation-delay: -2.1s; }
.star:nth-child(8) { top: 45%; left: 75%; animation-delay: -2.8s; }
.star:nth-child(9) { top: 88%; left: 35%; animation-delay: -3.2s; }

@keyframes twinkle {
    0% { opacity: 0.1; transform: scale(0.6); }
    100% { opacity: 0.8; transform: scale(1.4); }
}

.comet {
    position: absolute;
    top: 0; left: 0;
    width: 120px; height: 2px;
    background: linear-gradient(90deg, rgba(230,247,255,1), rgba(230,247,255,0));
    box-shadow: 0 0 10px rgba(230,247,255,0.6);
    border-radius: 50%;
    animation: comet-shoot 9s infinite linear;
    opacity: 0;
}
@keyframes comet-shoot {
    0% { transform: rotate(45deg) translateX(-10vw) translateY(-20vh); opacity: 0; }
    9.9% { transform: rotate(45deg) translateX(120vw) translateY(120vh); opacity: 1; }
    10% { transform: rotate(45deg) translateX(120vw) translateY(120vh); opacity: 0; }
    100% { transform: rotate(45deg) translateX(120vw) translateY(120vh); opacity: 0; }
}

.fly-rabbit-wrapper {
    position: absolute;
    bottom: 16%;
    left: 0;
    width: 8px; height: 8px;
    animation: rabbit-run 17s infinite linear;
}
.fly-rabbit {
    width: 100%; height: 100%;
    background: #2DD4BF;
    border-radius: 50%;
    box-shadow: 0 0 15px 5px rgba(45, 212, 191, 0.8);
    animation: rabbit-bounce 0.85s infinite alternate ease-in-out;
}
@keyframes rabbit-run {
    0% { transform: translateX(-5vw); }
    100% { transform: translateX(105vw); }
}
@keyframes rabbit-bounce {
    0% { transform: translateY(0); }
    100% { transform: translateY(-50px); }
}

/* Fallback for prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .aurora, .star, .comet, .fly-rabbit-wrapper, .fly-rabbit {
        animation: none !important;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header-inner { flex-direction: column; height: auto; padding: 20px 0; }
    .nav { margin: 20px 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; }
    .nav a { margin: 0; }
    h1 { font-size: 2.2rem; }
    .hero { padding: 60px 0; }
    .hero p { font-size: 1.1rem; }
    .section { padding: 50px 0; }
    .grid { grid-template-columns: 1fr; gap: 20px; }
    .card { padding: 30px 20px; }
    
    .btn { display: block; width: 100%; box-sizing: border-box; padding: 16px; font-size: 1.1rem; border-radius: 12px; }
    
    .footer-links { display: flex; flex-direction: column; gap: 15px; }
    .footer-links a { margin: 0; padding: 10px; }
    
    .page-content { padding: 30px 20px; margin: 30px auto; }
}


/* Accessibility & Scroll */
section, [id], .page-content { scroll-margin-top: 100px; }
.skip-link {
    position: absolute;
    top: -50px;
    left: 0;
    background: var(--primary-color);
    color: #04101A;
    padding: 10px 20px;
    z-index: 10000;
    font-weight: bold;
    text-decoration: none;
    transition: top 0.3s;
}
.skip-link:focus { top: 0; }

/* FAQ Details/Summary (Native) */
details.faq-item {
    cursor: pointer;
}
details.faq-item summary {
    cursor: pointer;
    font-weight: bold;
    outline: none;
    list-style: none; /* Hide default arrow in some browsers */
}
details.faq-item summary::-webkit-details-marker {
    display: none;
}