:root {
    --primary-color: #333;
    --accent-color: #e88d72;
    --text-light: #888;
}

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

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 50px;
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.logo {
    font-family: 'Quicksand', sans-serif;
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo::before {
    content: '';
    display: inline-block;
    width: 12px;
    height: 12px;
    background-color: var(--accent-color);
    border-radius: 50%;
}

nav {
    display: flex;
    gap: 40px;
}

nav a {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
    position: relative;
    padding: 5px 0;
}

nav a span {
    display: block;
    font-size: 9px;
    color: var(--text-light);
    margin-top: 2px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

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

nav a:hover span, nav a.active span {
    color: var(--accent-color);
}

nav a::after {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 20px;
    background: #e0e0e0;
}

nav a:last-child::after {
    display: none;
}

/* Hero Section */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    background-image: url('hero-stars.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 15vh;
    justify-content: flex-start;
    overflow: hidden;
}

.hero-title {
    font-family: 'Quicksand', sans-serif;
    font-size: 48px;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    margin-bottom: 40px;
    letter-spacing: 2px;
    z-index: 2;
    animation: fadeInDown 1s ease-out;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.video-container {
    position: relative;
    z-index: 2;
    max-width: 900px;
    width: 90%;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.video-container video {
    width: 100%;
    display: block;
}

/* Bubble Tooltip */
.bubble-tooltip {
    position: absolute;
    bottom: 120px;
    right: 60px;
    background: linear-gradient(135deg, #ff6b9d 0%, #c44569 100%);
    color: white;
    padding: 16px 28px;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(196, 69, 105, 0.4);
    z-index: 3;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: all 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    letter-spacing: 1px;
}

.bubble-tooltip.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.bubble-tooltip:hover {
    transform: translateX(-5px) scale(1.05);
    box-shadow: 0 12px 32px rgba(196, 69, 105, 0.5);
}

.bubble-tooltip .arrow-right {
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    border-left: 12px solid #c44569;
}

/* Social Links */
.social-links {
    position: absolute;
    bottom: 40px;
    right: 60px;
    display: flex;
    gap: 20px;
    z-index: 3;
}

.social-icon {
    display: block;
    transition: all 0.3s ease;
    opacity: 0.9;
}

.social-icon img {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    object-fit: cover;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
}

.social-icon:hover {
    transform: translateY(-5px) scale(1.1);
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 20px;
        flex-direction: column;
        gap: 20px;
    }

    nav {
        gap: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav a {
        font-size: 12px;
    }

    .video-container {
        max-width: 95%;
        border-radius: 12px;
    }
}