@charset "UTF-8";

:root {
    --bg-color: #f8fbff;
    --text-main: #1a1a1a;
    --text-sub: #666666;
    --accent-blob-1: #a7dbff;
    --accent-blob-2: #cbf3f0;
    --accent-blob-3: #d4e0ff;
    --card-bg: rgba(255, 255, 255, 0.7);
}

body {
    font-family: 'Zen Kaku Gothic New', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    overflow-x: hidden;
}

h1,
h2,
h3,
.en-font {
    font-family: 'Manrope', 'Zen Kaku Gothic New', sans-serif;
}

/* 3.1 Background Blobs */
.blob-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 25s infinite ease-in-out alternate;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: var(--accent-blob-1);
    animation-delay: 0s;
}

.blob-2 {
    bottom: -10%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: var(--accent-blob-3);
    animation-delay: -5s;
}

.blob-3 {
    top: 40%;
    left: 40%;
    width: 40vw;
    height: 40vw;
    background: var(--accent-blob-2);
    animation-delay: -10s;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }

    100% {
        transform: translate(0, 0) scale(1);
    }
}

/* 3.2 Glassmorphism Card */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.9);
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(167, 219, 255, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* 4.1 Scroll Interaction: Fade In Up */
.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1.0s cubic-bezier(0.16, 1, 0.3, 1), transform 1.0s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Custom Utilities */
.text-gradient {
    background: linear-gradient(135deg, #1a1a1a 0%, #4a5568 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Stronger gradient for specific emphasis */
.text-gradient-accent {
    background: linear-gradient(135deg, #2563eb 0%, #9333ea 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-link {
    position: relative;
    color: var(--text-main);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-blob-1);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* CTA Button Style (New) */
.btn-cta {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    /* Blue-600 to Indigo-600 */
    color: white;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
    /* Colored shadow */
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-cta:hover {
    background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
    /* Lighter on hover */
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
    /* Stronger glow */
}

/* Accordion Styles */
.accordion-content {
    transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}

.accordion-content.open {
    max-height: 500px;
    /* large enough value */
    opacity: 1;
}

.accordion-icon {
    transition: transform 0.3s ease;
}

.accordion-btn[aria-expanded="true"] .accordion-icon {
    transform: rotate(180deg);
}

/* Plan Specific Styles */
.plan-price {
    color: #1a1a1a;
    letter-spacing: -0.02em;
}

.plan-item {
    color: #333;
    font-weight: 500;
    list-style: none; /* Ensure no default bullets */
    padding-left: 0;
}

/* Mobile Menu Animation */
#mobile-menu {
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

#mobile-menu.hidden-menu {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

#mobile-menu.visible-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}