@charset "UTF-8";

/* ==================================
   Premium & Soft "かっこいい" CSS
=================================== */
:root {
    /* Color Palette - Soft, refined and earthy */
    --c-bg: #F5EFEB;          /* Sleek taupe/beige backogrund */
    --c-surface: #FFFFFF;     /* White surface */
    --c-text: #2A2C29;        /* Elegant dark gray */
    --c-text-light: #6E726A;  /* Soft secondary text */
    --c-primary: #556B52;     /* Sophisticated muted green */
    --c-primary-dark: #3A4A38;
    --c-accent: #C28B59;      /* Earthy warm accent */
    
    /* Typography */
    --font-heading: 'Zen Maru Gothic', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;
    
    /* Spacing & Borders */
    --radius-soft: 18px;
    --radius-heavy: 32px;
    
    /* Shadows */
    --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 12px 32px rgba(42, 44, 41, 0.06);
    --shadow-hover: 0 22px 44px rgba(42, 44, 41, 0.12);
    
    /* Effects */
    --transition: cubic-bezier(0.25, 1, 0.5, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--c-text);
    background-color: var(--c-bg);
    line-height: 1.8;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background Aesthetics */
.bg-gradient {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -2;
    opacity: 0.6;
}

.bg-gradient-1 {
    width: 60vh;
    height: 60vh;
    background: #DCE3D6; /* light sage glow */
    top: -10vh;
    right: -10vw;
}

.bg-gradient-2 {
    width: 70vh;
    height: 70vh;
    background: #F9EFE4; /* warm glow */
    top: 40vh;
    left: -20vw;
}

/* Very subtle noise texture for a premium tactile feel */
.noise-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.02;
    z-index: -1;
    pointer-events: none;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.section-padding {
    padding: 120px 0;
}

/* Typography elements */
h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    color: var(--c-text);
    font-weight: 700;
    line-height: 1.3;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 3rem;
    letter-spacing: 0.02em;
}

.text-center { text-align: center; }
.text-primary { color: var(--c-primary); }
.w-full { width: 100%; }
.block { display: block; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

a {
    color: inherit;
    text-decoration: none;
}

/* Components */
.eyebrow {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--c-accent);
    margin-bottom: 0.5rem;
    display: inline-block;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 34px;
    font-weight: 700;
    font-family: var(--font-heading);
    border-radius: 50px;
    transition: all 0.4s var(--transition);
    cursor: pointer;
    border: none;
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--c-primary);
    color: white;
    box-shadow: 0 10px 30px rgba(85, 107, 82, 0.25);
}

.btn-primary:hover {
    background-color: var(--c-primary-dark);
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(85, 107, 82, 0.35);
}

.btn-outline {
    background-color: transparent;
    color: var(--c-text);
    border: 1px solid rgba(42, 44, 41, 0.2);
}

.btn-outline:hover {
    background-color: var(--c-text);
    color: var(--c-surface);
    border-color: var(--c-text);
}

/* Header */
.header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    padding: 24px 0;
    z-index: 100;
    transition: all 0.4s var(--transition);
}

.header.scrolled {
    background: rgba(245, 239, 235, 0.85); /* Matches bg var */
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    padding: 14px 0;
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 0.05em;
}

.logo-img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-sm);
}

.nav {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav a:not(.btn) {
    font-size: 0.9rem;
    font-weight: 600;
    position: relative;
}

.nav a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--c-text);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s var(--transition);
}

.nav a:not(.btn):hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    padding-top: 100px;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8%;
    align-items: center;
    width: 100%;
}

.hero-visual {
    position: relative;
    border-radius: var(--radius-heavy);
    overflow: hidden;
    aspect-ratio: 4/5;
    box-shadow: var(--shadow-md);
    transform: translateY(0);
    transition: transform 0.8s var(--transition);
}

.hero-visual:hover {
    transform: translateY(-8px);
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-visual-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0) 50%, rgba(0,0,0,0.1) 100%);
}

.hero-content h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    line-height: 1.15;
    margin: 16px 0 32px;
    letter-spacing: -0.02em;
}

.hero-content h1 span {
    color: var(--c-primary);
}

.ai-text {
    position: relative;
    background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.ai-text::after {
    content: '愛';
    position: absolute;
    top: -15px;
    right: -10px;
    font-size: 0.25em;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.6s var(--transition);
    color: var(--c-accent);
}

.hero-visual:hover ~ .hero-content h1 .ai-text::after,
.hero-content h1:hover .ai-text::after {
    opacity: 0.6;
    transform: translateY(0);
}

.hero-subline {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--c-text-light);
    display: block;
    margin-top: -24px;
    margin-bottom: 32px;
    font-weight: 500;
}

.hero-lead {
    font-size: 1.15rem;
    color: var(--c-text-light);
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
}

.hero-actions .btn {
    width: 100%;
    max-width: 330px;
}

/* About / Glassmorphism Section */
.glass-panel {
    background: rgba(255, 255, 255, 0.7);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-heavy);
    padding: 60px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    box-shadow: var(--shadow-md);
}

.glass-content h2 {
    margin-bottom: 1.5rem;
}

.about-list {
    list-style: none;
    margin-bottom: 30px;
}

.about-list li {
    font-size: 1.05rem;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.glass-image {
    border-radius: var(--radius-soft);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    aspect-ratio: 4/3;
}

.glass-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Premium Cards Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 40px 30px;
}

.premium-card {
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .card-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    .premium-card:nth-child(1),
    .premium-card:nth-child(2) {
        grid-column: span 3;
    }
    .premium-card:nth-child(3),
    .premium-card:nth-child(4),
    .premium-card:nth-child(5) {
        grid-column: span 2;
    }
}

.card-img-wrap {
    border-radius: var(--radius-soft);
    overflow: hidden;
    aspect-ratio: 16/10;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.5s var(--transition);
}

.premium-card:hover .card-img-wrap {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.card-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--transition);
}

.premium-card:hover .card-img-wrap img {
    transform: scale(1.05);
}

.card-body {
    padding: 0 10px;
}

.card-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.premium-card:hover .card-title {
    color: var(--c-primary);
}

.card-text {
    color: var(--c-text-light);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.card-link {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--c-accent);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Sleek List (Articles) */
.sleek-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: 900px;
    margin: 0 auto;
    border-top: 1px solid rgba(42, 44, 41, 0.1);
}

.sleek-list-item {
    display: grid;
    grid-template-columns: 120px 1fr 40px;
    gap: 30px;
    align-items: center;
    padding: 32px 20px;
    border-bottom: 1px solid rgba(42, 44, 41, 0.1);
    transition: all 0.4s var(--transition);
    border-radius: 8px; /* For subtle background hover */
}

.sleek-list-item:hover {
    background-color: var(--c-surface);
    transform: translateX(10px);
    padding-left: 30px;
    padding-right: 10px;
    border-bottom-color: transparent;
    box-shadow: var(--shadow-md);
}

.sleek-list-item .date {
    font-size: 0.9rem;
    color: var(--c-text-light);
    font-family: var(--font-heading);
    font-weight: 500;
}

.sleek-list-item .title {
    font-size: 1.25rem;
    margin: 0;
    font-weight: 700;
}

.icon-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(42, 44, 41, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-text);
    transition: all 0.4s var(--transition);
}

.sleek-list-item:hover .icon-circle {
    background-color: var(--c-primary);
    border-color: var(--c-primary);
    color: white;
    transform: rotate(-45deg);
}

/* Footer */
.footer {
    background-color: var(--c-surface);
    padding: 100px 0 40px;
    border-top: 1px solid rgba(0,0,0,0.05);
}

.footer-top {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 60px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 24px;
}

.footer-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.footer-desc {
    color: var(--c-text-light);
    margin-bottom: 32px;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 20px 0 30px;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--c-bg);
    color: var(--c-primary);
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: var(--c-primary);
    color: white;
    transform: translateY(-4px);
}

.sns-icon {
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(0,0,0,0.05);
    font-size: 0.85rem;
    color: var(--c-text-light);
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive adjustments */
@media (max-width: 992px) {
    .glass-panel {
        grid-template-columns: 1fr;
        padding: 40px;
    }
    
    .glass-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .sleek-list-item {
        grid-template-columns: 1fr;
        gap: 10px;
        padding: 24px 10px;
    }
    
    .sleek-list-item .icon-circle {
        display: none;
    }
}