/* General Styles */
    * {
        scroll-behavior: smooth;
    }
    
    body {
        font-family: 'Noto Sans JP', 'Inter', sans-serif;
        background: #0a0a0f;
        color: #ffffff;
        overflow-x: hidden;
    }

    /* Particle Canvas */
    #particles-canvas {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: 1;
    }


    /* Gradient Background */
    .gradient-bg {
        background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
    }

    /* Logo Animation */
    .logo-container {
        position: relative;
        z-index: 10;
    }

    .logo-svg {
        filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
        animation: logoPulse 3s ease-in-out infinite alternate;
    }

    @keyframes logoPulse {
        0% { filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.2)); transform: scale(1); }
        100% { filter: drop-shadow(0 0 15px rgba(255, 255, 255, 0.4)); transform: scale(1.05); }
    }

    /* Floating Animation */
    .float {
        animation: floating 3s ease-in-out infinite;
    }

    @keyframes floating {
        0%, 100% { transform: translateY(0px); }
        50% { transform: translateY(-10px); }
    }

    /* Fade In Up Animation */
    .fade-in-up {
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.8s ease;
    }

    .fade-in-up.active {
        opacity: 1;
        transform: translateY(0);
    }

    /* Card Hover Effects */
    .service-card {
        background: rgba(30, 30, 50, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
    }

    .service-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
        transition: left 0.5s;
    }

    .service-card:hover::before {
        left: 100%;
    }

    .service-card:hover {
        transform: translateY(-10px) scale(1.02);
        border-color: rgba(255, 255, 255, 0.4);
        box-shadow: 0 20px 40px rgba(255, 255, 255, 0.2);
    }

    /* Monochrome Elegant Button Styles */
    .action-button {
        background: #ffffff;
        color: #000000;
        font-weight: bold;
        padding: 0.75rem 2rem;
        border-radius: 9999px;
        transition: all 0.3s ease;
        border: none;
        position: relative;
        overflow: hidden;
        outline: none;
        box-shadow: 0 1px 6px rgba(0,0,0,0.07);
        will-change: transform;
        /* gentle pulse animation */
        animation: buttonPulse 2.2s cubic-bezier(0.4,0,0.2,1) infinite alternate;
    }

    .action-button:hover {
        background: #e5e5e5;
        transform: scale(1.05);
        /* gentle bounce */
        animation: buttonBounce 0.4s cubic-bezier(.68,-0.55,.27,1.55) 1;
    }

    @keyframes buttonPulse {
        0% { box-shadow: 0 1px 6px rgba(0,0,0,0.07); }
        100% { box-shadow: 0 4px 15px rgba(0,0,0,0.12); }
    }
    @keyframes buttonBounce {
        0% { transform: scale(1.05);}
        30% { transform: scale(0.98);}
        50% { transform: scale(1.04);}
        100% { transform: scale(1.05);}
    }

    /* Scroll Progress Bar */
    .progress-bar {
        position: fixed;
        top: 0;
        left: 0;
        width: 0%;
        height: 3px;
        background: linear-gradient(90deg, #fff, #ccc);
        z-index: 1000;
        transition: width 0.3s ease;
    }

    /* Custom Scrollbar */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #1a1a2e;
    }
    ::-webkit-scrollbar-thumb {
        background: linear-gradient(45deg, #f5f5f5, #bbb);
        border-radius: 4px;
    }

    /* Section Spacing */
    .section {
        min-height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        z-index: 10;
        padding: 2rem 0;
    }

    /* Hero specific styles */
    .hero-section {
        min-height: 100vh;
        background: linear-gradient(135deg, #0a0a0f 0%, #1a1a2e 50%, #16213e 100%);
    }

    /* Typewriter Effect */
    .typewriter {
        overflow: hidden;
        border-right: 3px solid #ccc;
        white-space: nowrap;
        animation: typewriter 4s steps(40, end), blink 0.75s step-end infinite;
    }

    @keyframes typewriter {
        from { width: 0; }
        to { width: 100%; }
    }

    @keyframes blink {
        from, to { border-color: transparent; }
        50% { border-color: #ccc; }
    }

    /* Responsive Design */
    @media (max-width: 768px) {
        .section {
            min-height: auto;
            padding: 4rem 0;
        }
        
        .hero-section {
            min-height: 100vh;
        }
    }

    /* Form Styles */
    .form-input {
        background: rgba(30, 30, 50, 0.8);
        border: 1px solid rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(10px);
        transition: all 0.3s ease;
    }

    .form-input:focus {
        border-color: #ffffff;
        box-shadow: 0 0 10px rgba(255, 255, 255, 0.15);
        outline: none;
    }

    /* Philosophy Section */
    .philosophy-text {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.8s ease;
    }

    .philosophy-text.visible {
        opacity: 1;
        transform: translateY(0);
    }

    /* Seed Icon Animation */
    .seed-icon {
        animation: seedGrow 2s ease-in-out infinite alternate;
    }

    @keyframes seedGrow {
        0% { transform: scale(1) rotate(0deg); }
        100% { transform: scale(1.1) rotate(5deg); }
    }