:root {
    /* New "Sophisticated Light" Palette */
    --ai-bg: #ffffff;
    --ai-bg-alt: #f8fbff;
    /* Very soft blue-white for cards/sections */
    --ai-text-main: #2c3e50;
    /* Dark Blue-Gray for primary text */
    --ai-text-sub: #546e7a;
    /* Softer gray for secondary text */
    --ai-accent: #3498db;
    /* Elegant Blue */
    --ai-accent-gradient: linear-gradient(135deg, #3498db 0%, #a29bfe 100%);
    /* Blue to Soft Purple */
    --ai-border: #e1e8ed;
    --ai-white: #ffffff;
    --ai-card-shadow: 0 10px 40px -10px rgba(52, 152, 219, 0.15);
    /* Soft colored shadow */
    --ai-font-main: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
}

/* Base Styles */
.ai-hybrid-body {
    background-color: var(--ai-bg);
    color: var(--ai-text-sub);
    font-family: var(--ai-font-main);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.ai-hybrid-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

.ai-hybrid-section {
    padding: 100px 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--ai-text-main);
    margin: 0 0 30px 0;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: 0.03em;
}

.ai-text-highlight {
    color: var(--ai-accent);
    background: linear-gradient(120deg, transparent 60%, rgba(52, 152, 219, 0.1) 60%);
    /* Subtle highlighter effect */
}

/* Hero Section */
.ai-hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    /* Light overlay over image */
    background: linear-gradient(rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.7)), url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    position: relative;
    padding-top: 80px;
}

.ai-hero-content {
    max-width: 900px;
}

.ai-hero h1 {
    font-size: clamp(2.5rem, 4.5vw, 4rem);
    line-height: 1.3;
    margin-bottom: 40px;
    color: var(--ai-text-main);
}

.ai-hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin-bottom: 50px;
    color: var(--ai-text-sub);
}

/* Executive Summary / Cards */
.ai-exec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.ai-card {
    background-color: var(--ai-white);
    padding: 50px 40px;
    border-radius: 20px;
    /* Softer, rounder corners */
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    border: 1px solid var(--ai-border);
    position: relative;
    overflow: hidden;
}

.ai-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--ai-card-shadow);
    border-color: var(--ai-accent);
}

.ai-card-icon {
    font-size: 2.5rem;
    color: var(--ai-accent);
    margin-bottom: 25px;
    height: 80px;
    width: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ai-bg-alt);
    border-radius: 50%;
    /* Circle icons for femininity */
}

.ai-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

/* Comparison Section */
.ai-comparison-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 40px 0;
    font-size: 3rem;
    color: var(--ai-accent);
    opacity: 0.5;
}

.ai-status-row {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 30px;
    flex-wrap: wrap;
}

.ai-status-box {
    flex: 1;
    min-width: 300px;
    background: var(--ai-bg-alt);
    padding: 50px;
    border-radius: 15px;
    border: 1px solid var(--ai-border);
}

.ai-status-box ul {
    list-style: none;
    padding-left: 0;
    margin-top: 20px;
}

.ai-status-box li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 15px;
    color: var(--ai-text-sub);
}

.ai-status-box li::before {
    content: "•";
    color: #ccc;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.ai-status-box.target {
    background: var(--ai-white);
    border: 2px solid var(--ai-accent);
    position: relative;
    box-shadow: var(--ai-card-shadow);
}

.ai-status-box.target li::before {
    color: var(--ai-accent);
}

.ai-status-box.target::after {
    content: 'GOAL';
    position: absolute;
    top: -18px;
    right: 40px;
    background: var(--ai-accent-gradient);
    color: #fff;
    padding: 6px 25px;
    font-weight: bold;
    border-radius: 50px;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

/* Plans Section */
.ai-plans-container {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: stretch;
}

.ai-plan {
    flex: 1;
    min-width: 350px;
    max-width: 500px;
    background: var(--ai-white);
    padding: 60px 40px;
    border-radius: 20px;
    position: relative;
    border: 1px solid var(--ai-border);
    transition: transform 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.ai-plan:hover {
    transform: translateY(-5px);
}

.ai-plan.recommended {
    border: 2px solid var(--ai-accent);
    box-shadow: var(--ai-card-shadow);
    background: #fff;
    /* Keep white for cleanliness */
}

.ai-plan-badge {
    position: absolute;
    top: -1px;
    /* Align with border */
    right: -1px;
    background: var(--ai-accent-gradient);
    color: #fff;
    padding: 12px 30px;
    font-weight: bold;
    font-size: 0.9rem;
    border-bottom-left-radius: 12px;
    border-top-right-radius: 18px;
    /* Match card radius */
    letter-spacing: 0.05em;
}

.ai-price {
    font-size: 3rem;
    color: var(--ai-accent);
    /* Use accent color for price */
    font-weight: 800;
    margin: 30px 0;
    letter-spacing: -0.02em;
}

.ai-price span {
    font-size: 1rem;
    color: var(--ai-text-sub);
    font-weight: normal;
    margin-left: 10px;
}

.ai-features-list li {
    padding: 15px 0;
    border-bottom: 1px solid var(--ai-border);
    display: flex;
    align-items: flex-start;
}

.ai-features-list li::before {
    content: '✓';
    color: var(--ai-accent);
    margin-right: 15px;
    font-weight: bold;
    flex-shrink: 0;
}

/* Plan Note */
.ai-plan-note {
    text-align: center;
    margin-top: 40px;
    font-size: 0.95rem;
    color: var(--ai-text-sub);
    background: var(--ai-bg-alt);
    padding: 25px;
    border-radius: 50px;
    /* Pill shape */
    border: 1px dashed var(--ai-accent);
}

/* Functional Comparison Table */
.ai-table-wrapper {
    overflow-x: auto;
    background: var(--ai-white);
    border-radius: 20px;
    padding: 50px;
    box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--ai-border);
}

.ai-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    min-width: 700px;
}

.ai-table th {
    padding: 25px;
    text-align: center;
    border-bottom: 2px solid var(--ai-bg-alt);
    color: var(--ai-text-main);
    font-size: 1.1rem;
    background: var(--ai-bg-alt);
}

.ai-table th:first-child {
    text-align: left;
    border-top-left-radius: 15px;
    border-bottom-left-radius: 15px;
}

.ai-table th:last-child {
    border-top-right-radius: 15px;
    border-bottom-right-radius: 15px;
}

.ai-table td {
    padding: 25px;
    text-align: center;
    border-bottom: 1px solid var(--ai-border);
    transition: background 0.2s;
}

.ai-table tr:hover td {
    background: var(--ai-bg-alt);
}

.ai-table tr:last-child td {
    border-bottom: none;
}

.ai-check {
    color: var(--ai-accent);
    font-weight: bold;
    display: inline-block;
}

.ai-cross {
    color: #cbd5e0;
    font-size: 1.5rem;
}

/* Capabilities Section (Card Style + Sophisticated) */
.ai-caps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.ai-cap-card {
    background: var(--ai-white);
    border: 1px solid var(--ai-border);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

.ai-cap-card:hover {
    border-color: var(--ai-accent);
    transform: translateY(-5px);
    box-shadow: var(--ai-card-shadow);
}

.ai-cap-top {
    background: var(--ai-bg-alt);
    padding: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-cap-img {
    height: 80px;
    width: auto;
    object-fit: contain;
    /* Removed drop-shadow for cleaner look, or make it subtle */
    filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.05));
    transition: transform 0.3s ease;
}

.ai-cap-card:hover .ai-cap-img {
    transform: scale(1.05);
}

.ai-cap-body {
    padding: 25px;
    flex-grow: 1;
}

.ai-cap-body h3 {
    color: var(--ai-text-main);
    font-size: 1.15rem;
    margin-bottom: 10px;
    font-weight: bold;
}

.ai-cap-card:hover .ai-cap-body h3 {
    color: var(--ai-accent);
}

.ai-cap-body p {
    font-size: 0.95rem;
    margin-bottom: 0;
    color: var(--ai-text-sub);
    line-height: 1.6;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .ai-hero h1 {
        font-size: 2.2rem;
    }

    .ai-hybrid-container {
        padding: 0 20px;
    }

    .ai-comparison-arrow {
        transform: rotate(90deg);
        margin: 20px 0;
    }

    .ai-status-row {
        flex-direction: column;
    }

    /* Mobile Cards Horizontal Layout */
    .ai-caps-grid {
        grid-template-columns: 1fr;
    }

    .ai-cap-card {
        flex-direction: row;
        align-items: center;
    }

    .ai-cap-top {
        padding: 15px;
        width: 100px;
        flex-shrink: 0;
        background: transparent;
        /* Cleaner on mobile list view */
        border-right: 1px solid var(--ai-border);
    }

    .ai-cap-img {
        height: 50px;
    }

    .ai-cap-body h3 {
        font-size: 1.1rem;
        margin-bottom: 5px;
    }

    .ai-cap-body p {
        font-size: 0.85rem;
    }
}