:root {
    --primary-color: #007bff;
    --primary-dark: #0056b3;
    --accent-color: #00d2ff;
    --text-color: #333;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --dark-bg: #1a1a1a;
    --dark-text: #f0f0f0;
    --gradient-bg: linear-gradient(135deg, #1a1a1a 0%, #2c3e50 100%);
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-md: 0 10px 15px rgba(0,0,0,0.1);
    --radius-md: 12px;
    --radius-lg: 20px;
}

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

body {
    font-family: 'Inter', 'Noto Sans JP', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    padding: 20px 0;
    position: absolute;
    width: 100%;
    z-index: 10;
    top: 0;
}

.logo {
    color: white;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
    width: 100%;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
}

.btn2 {
    display: block;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
	margin: 10px auto 0;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 123, 255, 0.6);
}

.btn-secondary {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.btn-secondary:hover {
    background: white;
    color: var(--text-color);
}

.btn-secondary2 {
    background: transparent;
    border: 2px solid #c6c6c6;
    color: #2a2a2a;
}

.btn-secondary2:hover {
    background: white;
    color: var(--text-color);
}

/* Hero Section */
.hero {
    background: var(--gradient-bg);
    color: white;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    width: 100%;
}

.hero-content {
    flex: 1;
    max-width: 550px;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 0.5rem;
    letter-spacing: -2px;
    background: linear-gradient(to right, #fff, #a0cfff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.caution-text {
    margin-top: 1rem;
    opacity: 0.6;
    font-size: 0.9rem;
}

.hero-visual {
    flex: 1;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 280px;
    border-radius: 40px;
    border: 8px solid #222;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    background: #000;
    position: relative;
    z-index: 2;
    transition: transform 0.5s ease;
}

.phone-mockup img {
    width: 100%;
    height: auto;
    display: block;
}

.phone-mockup.secondary {
    position: absolute;
    right: 0;
    top: 40px;
    z-index: 1;
    transform: scale(0.9);
    filter: brightness(0.7);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.hero-visual:hover .phone-mockup {
    transform: translateX(-20px);
}
.hero-visual:hover .phone-mockup.secondary {
    transform: translateX(20px) scale(0.9);
    filter: brightness(1);
    z-index: 3;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.feature-card {
    background: var(--bg-color);
    padding: 40px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h4 {
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.data-feature {
    background: #f0f7ff;
    padding: 40px;
    border-radius: var(--radius-lg);
    border-left: 5px solid var(--primary-color);
}

.data-feature h4 {
    margin-bottom: 20px;
    font-size: 1.25rem;
}

.data-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 15px;
}

.data-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.data-list i {
    color: var(--primary-color);
}

/* Usage Section */
.usage {
    padding: 80px 0;
    background: var(--bg-color);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    counter-reset: step;
}

.step {
    background: white;
    padding: 30px;
    border-radius: var(--radius-md);
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.step-number {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    margin: 0 auto 20px;
    font-size: 1.2rem;
}

.step p {
    font-weight: 600;
}

/* Warning Section */
.warning {
    padding: 60px 0;
    background: white;
}

.warning-list {
    background: #fff3f3;
    padding: 30px 40px;
    border-radius: var(--radius-md);
    border: 1px solid #ffcccc;
}

.warning-list li {
    margin-bottom: 10px;
    color: #555;
    font-size: 0.95rem;
}

.warning-list li.important {
    color: #e74c3c;
    font-weight: 700;
    list-style-type: none; /* Emphasize this one */
    margin-top: 15px;
    padding: 10px;
    background: rgba(231, 76, 60, 0.1);
    border-radius: 8px;
    text-align: center;
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background: var(--bg-color);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    padding: 25px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.question {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.answer {
    padding-left: 20px;
    border-left: 3px solid #ddd;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--gradient-bg);
    color: white;
    text-align: center;
}

.cta-title {
    margin-bottom: 40px;
    font-size: 2.5rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.2rem;
}

.btn-large2 {
    padding: 16px 40px;
    font-size: 1.2rem;
}

/* Footer */
.footer {
    background: #111;
    color: #aaa;
    padding: 30px 0;
    text-align: center;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        position: relative;
        background: #1a1a1a;
        padding: 15px 0;
    }
    
    .hero {
        padding: 40px 0;
        text-align: center;
        min-height: auto;
        display: block;
    }

    .hero-container {
        flex-direction: column;
        gap: 60px;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-visual {
        width: 100%;
        height: 500px; /* Give it space */
    }

    .phone-mockup {
        width: 240px;
    }
    
    .phone-mockup.secondary {
        right: 50%;
        margin-right: -140px; /* Center offset */
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .btn {
        width: 100%;
    }
}

@media (hover:none) and (pointer:coarse){
  .hero-visual,
  .hero-visual *{
    transition: none !important;
  }
  .hero-visual:hover,
  .hero-visual:hover *{
    transform: none !important;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    bottom: auto !important;
  }

  .hero-visual .phone-mockup.secondary{
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
  }

  .hero-visual .phone-mockup img{
    display: block !important;
    margin: 0 auto !important;
    max-width: 420px !important;
    width: 100% !important;
    height: auto !important;
  }

  .hero-visual .phone-mockup:not(.secondary){
    position: relative !important;
  }

  .hero-visual .touch-hint{
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    animation: touchPulse 1.6s ease-in-out infinite;
    opacity: 0;
  }

  .hero-visual .touch-hint img{
    width: 80px !important;
    height: auto !important;
  }

  @keyframes touchPulse{
    0%   { opacity: 0; transform: translateY(6px); }
    25%  { opacity: 1; transform: translateY(0); }
    70%  { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(-6px); }
  }

}