/* Tailwind CSS Configuration */
@import url('https://fonts.googleapis.com/css2?family=Public+Sans:ital,wght@0,100..900;1,100..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

/* Base Styles */
body {
    font-family: 'Noto Sans JP', sans-serif;
    scroll-behavior: smooth;
}

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* Grid Background Patterns */
.bg-grid {
    background-size: 20px 20px;
    background-image: radial-gradient(#bae6fd 1.5px, transparent 1.5px);
}

.bg-grid-sm {
    background-size: 16px 16px;
    background-image: radial-gradient(#e2e8f0 1.5px, transparent 1.5px);
}

/* Custom Selection Styles */
::selection {
    background-color: rgba(59, 130, 246, 0.2);
    color: #3B82F6;
}

/* Accessibility: Focus Styles */
a:focus,
button:focus {
    outline: 2px solid #3B82F6;
    outline-offset: 2px;
}

/* Smooth Transitions */
* {
    transition-property: color, background-color, border-color, transform, box-shadow;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

/* Hero Section Background Image - Responsive */
.hero-section {
    min-height: 600px;
}

.hero-bg-image {
    background-image: url('../img/top.png');
    background-size: auto 100%;
    background-position: right center;
    background-repeat: no-repeat;
    opacity: 0.5;
}

@media (max-width: 1023px) {
    .hero-section {
        min-height: 500px;
    }
    
    .hero-bg-image {
        background-size: auto 100%;
        background-position: right center;
    }
}

@media (max-width: 640px) {
    .hero-section {
        min-height: 450px;
    }
    
    .hero-bg-image {
        background-size: auto 100%;
        background-position: right center;
    }
}

/* Mobile Menu Styles */
.mobile-menu {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    z-index: 99999 !important;
    transition: opacity 0.3s ease, transform 0.3s ease;
    position: fixed !important;
    top: 80px !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: calc(100vh - 80px) !important;
    background-color: white !important;
}

/* デスクトップでは非表示 */
@media (min-width: 1024px) {
    .mobile-menu {
        display: none !important;
    }
}

.mobile-menu-closed {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
}

.mobile-menu-open {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    animation: slideDown 0.3s ease-out;
}

/* モバイルメニューが開いている時は確実に表示 */
.mobile-menu.mobile-menu-open {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mobile-menu-button {
    position: relative;
    cursor: pointer;
    z-index: 60;
}

.mobile-menu-button .menu-icon,
.mobile-menu-button .close-icon {
    transition: opacity 0.2s ease;
    display: inline-block;
    pointer-events: none;
}

.mobile-menu-button .menu-icon.hidden,
.mobile-menu-button .close-icon.hidden {
    display: none !important;
}

.mobile-menu a {
    display: block;
    transition: all 0.2s ease;
}

.mobile-menu a:hover {
    padding-left: 8px;
    background-color: rgba(59, 130, 246, 0.05);
}