/*
Theme Name: Seidousai Blue Refresh Theme
Author: Antigravity
Description: 安満遺跡青銅祭公式テーマ (Refreshing Blue x Dynamic Wave)
Version: 1.1.0
*/

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700;900&display=swap');

:root {
    --color-brand: #00c6ff;
    --color-brand-dark: #0072ff;
    --color-brand-light: #e0f7fa;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: #f8fafc;
    color: #334155;
    line-height: 1.8;
    overflow-x: hidden;
}

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.text-gradient-brand {
    background: linear-gradient(135deg, var(--color-brand), #06b6d4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.site-header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    padding: 0.5rem 0;
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Utilities */
.animate-fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

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