@charset "UTF-8";

/* ==========================================================================
   Project: World Blue AI Studio - Front Page (Complete)
   Theme: Premium Light / Glassmorphism / All 8 Sections
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800;900&family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

:root {
    /* --- Colors --- */
    --wb-primary: #3b82f6;
    --wb-primary-dark: #2563eb;
    --wb-primary-glow: rgba(59, 130, 246, 0.4);
    --wb-accent: #f97316;
    --wb-accent-glow: rgba(249, 115, 22, 0.4);
    --wb-green: #10b981;

    /* Backgrounds */
    --wb-bg-main: #ffffff;
    --wb-bg-alt: #f8fafc;
    --wb-bg-dark: #0f172a;

    /* Text */
    --wb-text-main: #0f172a;
    --wb-text-sub: #475569;

    /* Layout */
    --wb-radius: 20px;
    --wb-radius-sm: 12px;
    --wb-container-max: 1200px;

    /* Shadows */
    --wb-shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --wb-shadow-card: 0 10px 30px -5px rgba(0, 0, 0, 0.08);
    --wb-shadow-hover: 0 25px 50px -12px rgba(59, 130, 246, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--wb-bg-main);
    color: var(--wb-text-main);
    font-family: 'Noto Sans JP', sans-serif;
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Wrapper */
.wb-fp-wrapper {
    width: 100vw;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    max-width: 100vw;
}

.wb-container {
    max-width: var(--wb-container-max);
    margin: 0 auto;
    padding: 0 40px;
}

/* ==========================================================================
   1. HERO SECTION
   ========================================================================== */
.wb-hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 20px;
    background: #fff;
    isolation: isolate;
}

.wb-hero-blobs {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.wb-blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.5;
    animation: blob-float 12s infinite alternate ease-in-out;
}

.wb-blob-1 {
    top: -10%;
    right: -5%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--wb-primary-glow) 0%, transparent 70%);
}

.wb-blob-2 {
    bottom: -10%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--wb-accent-glow) 0%, transparent 70%);
    animation-delay: -6s;
}

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

    100% {
        transform: translate(20px, 40px) scale(1.1);
    }
}

.wb-hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
}

.wb-hero-sub {
    font-weight: 600;
    font-size: clamp(0.8rem, 1.2vw, 1rem);
    letter-spacing: 0.15em;
    color: var(--wb-primary);
    margin-bottom: 1.5rem;
}

.wb-hero-main-title {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
    color: var(--wb-text-main);
}

.wb-text-gradient {
    background: linear-gradient(135deg, var(--wb-primary) 0%, #8b5cf6 50%, var(--wb-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.wb-hero-desc {
    font-size: clamp(0.95rem, 1.3vw, 1.1rem);
    margin-bottom: 2.5rem;
    color: var(--wb-text-sub);
    line-height: 2;
}

.wb-hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.wb-hero-btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.wb-btn-primary {
    background: var(--wb-primary);
    color: #fff;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.wb-btn-primary:hover {
    background: var(--wb-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.4);
}

.wb-btn-outline {
    background: transparent;
    color: var(--wb-text-main);
    border: 2px solid #e2e8f0;
}

.wb-btn-outline:hover {
    border-color: var(--wb-primary);
    color: var(--wb-primary);
}

/* ==========================================================================
   CAMPAIGN BANNER SECTION
   ========================================================================== */
.wb-campaign-section {
    width: 100%;
    max-width: var(--wb-container-max);
    margin: 0 auto;
    padding: 40px 40px 0;
}

.wb-campaign-card {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f0f23 100%);
    border-radius: var(--wb-radius);
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.4s ease;
    text-decoration: none;
}

.wb-campaign-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
}

.wb-campaign-image {
    overflow: hidden;
}

.wb-campaign-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.wb-campaign-card:hover .wb-campaign-image img {
    transform: scale(1.05);
}

.wb-campaign-content {
    padding: 40px 40px 40px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
}

.wb-campaign-badge {
    display: inline-block;
    background: linear-gradient(135deg, #ffd700 0%, #ffb347 100%);
    color: #1a1a2e;
    font-size: 0.8rem;
    font-weight: 800;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
    align-self: flex-start;
}

.wb-campaign-content h2 {
    font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    font-weight: 900;
    margin-bottom: 10px;
    line-height: 1.3;
    color: #fff;
}

.wb-campaign-subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 24px;
}

.wb-campaign-benefits {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.wb-campaign-benefit {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    background: rgba(255, 255, 255, 0.08);
    padding: 12px 16px;
    border-radius: var(--wb-radius-sm);
    border: 1px solid rgba(255, 215, 0, 0.2);
}

.wb-benefit-icon {
    font-size: 1.5rem;
}

.wb-benefit-text {
    font-size: 0.85rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.9);
}

.wb-benefit-text strong {
    color: #ffd700;
    display: block;
    font-size: 0.95rem;
}

.wb-campaign-cta {
    color: #ffd700;
    font-weight: 700;
    font-size: 1rem;
    transition: 0.3s;
}

.wb-campaign-card:hover .wb-campaign-cta {
    transform: translateX(5px);
}

@media (max-width: 900px) {
    .wb-campaign-card {
        grid-template-columns: 1fr;
    }

    .wb-campaign-image {
        aspect-ratio: 16 / 9;
    }

    .wb-campaign-content {
        padding: 30px;
    }

    .wb-campaign-section {
        padding: 30px 20px 0;
    }
}

@media (max-width: 600px) {
    .wb-campaign-benefits {
        flex-direction: column;
        gap: 12px;
    }
}

/* ==========================================================================
   SECTIONS BASE
   ========================================================================== */
.wb-section {
    padding: 100px 0;
    background: var(--wb-bg-main);
}

.wb-section-alt {
    background: var(--wb-bg-alt);
}

.wb-section-dark {
    background: var(--wb-bg-dark);
    color: #fff;
}

.wb-section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
}

.wb-section-pill {
    display: inline-block;
    background: var(--wb-text-main);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 100px;
    letter-spacing: 0.1em;
    margin-bottom: 16px;
}

.wb-section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.wb-section-desc {
    font-size: 1rem;
    color: var(--wb-text-sub);
    line-height: 1.8;
}

/* ==========================================================================
   2. WORKSHOP GRID
   ========================================================================== */
.wb-workshop-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.wb-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--wb-radius);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: var(--wb-shadow-sm);
}

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

.wb-card-stack {
    display: flex;
    flex-direction: column;
}

.wb-card-image-half {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.wb-card-image-half img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.wb-card:hover .wb-card-image-half img {
    transform: scale(1.08);
}

.wb-card-body-half {
    padding: 24px;
    flex: 1;
}

.wb-card-body-half h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--wb-text-main);
}

.wb-card-body-half p {
    font-size: 0.9rem;
    color: var(--wb-text-sub);
    line-height: 1.7;
}

.wb-badge-inline {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.wb-badge-free {
    background: var(--wb-green);
    color: #fff;
}

.wb-badge-orange {
    background: var(--wb-accent);
    color: #fff;
}

/* ==========================================================================
   3. WIDE CARD (養成講座)
   ========================================================================== */
.wb-wide-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--wb-radius);
    overflow: hidden;
    box-shadow: var(--wb-shadow-card);
    transition: all 0.4s ease;
}

.wb-wide-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--wb-shadow-hover);
    border-color: var(--wb-primary);
}

.wb-wide-card-image {
    aspect-ratio: 16/10;
    overflow: hidden;
}

.wb-wide-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.wb-wide-card:hover .wb-wide-card-image img {
    transform: scale(1.05);
}

.wb-wide-card-content {
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.wb-badge {
    display: inline-block;
    background: var(--wb-primary);
    color: #fff;
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
    align-self: flex-start;
}

.wb-wide-card-content h3 {
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 16px;
    color: var(--wb-text-main);
}

.wb-wide-card-content p {
    font-size: 1rem;
    color: var(--wb-text-sub);
    line-height: 1.8;
    margin-bottom: 20px;
}

.wb-card-link {
    color: var(--wb-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

/* ==========================================================================
   4. LAB GRID (個人レッスン)
   ========================================================================== */
.wb-lab-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.wb-lab-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--wb-radius);
    overflow: hidden;
    transition: all 0.4s ease;
    box-shadow: var(--wb-shadow-sm);
    display: flex;
    flex-direction: column;
}

.wb-lab-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--wb-shadow-hover);
    border-color: var(--wb-primary);
}

.wb-lab-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.wb-lab-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s ease;
}

.wb-lab-card:hover .wb-lab-img img {
    transform: scale(1.08);
}

.wb-lab-body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.wb-lab-body h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--wb-text-main);
}

.wb-lab-body p {
    font-size: 0.85rem;
    color: var(--wb-text-sub);
    line-height: 1.6;
    flex: 1;
    margin-bottom: 12px;
}

.wb-lab-link {
    color: var(--wb-primary);
    font-weight: 600;
    font-size: 0.85rem;
}

/* ==========================================================================
   5. PHOTO MOVIE SECTION (DARK)
   ========================================================================== */
.wb-photo-movie-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.wb-photo-movie-content .wb-badge {
    background: var(--wb-accent);
}

.wb-photo-movie-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 12px;
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.wb-photo-movie-tagline {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.85);
}

.wb-photo-movie-content p {
    font-size: 0.95rem;
    line-height: 1.9;
    margin-bottom: 30px;
    opacity: 0.9;
}

.wb-photo-movie-image {
    border-radius: var(--wb-radius);
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   6. REASONS GRID (選ばれる理由)
   ========================================================================== */
.wb-reasons-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.wb-reason-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--wb-radius);
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.wb-reason-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--wb-shadow-card);
    border-color: var(--wb-primary);
}

.wb-reason-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.wb-reason-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 14px;
}

.wb-reason-card p {
    font-size: 0.9rem;
    color: var(--wb-text-sub);
    line-height: 1.7;
}

/* ==========================================================================
   7. TESTIMONIALS (参加者の声)
   ========================================================================== */
.wb-testimonials-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.wb-testimonial-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--wb-radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
}

.wb-testimonial-content {
    flex: 1;
    margin-bottom: 20px;
}

.wb-testimonial-content p {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--wb-text-main);
}

.wb-testimonial-author {
    display: flex;
    gap: 10px;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid #f1f5f9;
}

.wb-testimonial-name {
    font-weight: 700;
    color: var(--wb-text-main);
}

.wb-testimonial-location {
    font-size: 0.85rem;
    color: var(--wb-text-sub);
}

/* ==========================================================================
   8. INSTRUCTOR (講師プロフィール)
   ========================================================================== */
.wb-instructor-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 50px;
    align-items: start;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: var(--wb-radius);
    padding: 50px;
    box-shadow: var(--wb-shadow-sm);
}

.wb-instructor-image {
    border-radius: var(--wb-radius);
    overflow: hidden;
}

.wb-instructor-role {
    font-size: 0.85rem;
    color: var(--wb-primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.wb-instructor-info h3 {
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 4px;
}

.wb-instructor-name-en {
    font-size: 0.9rem;
    color: var(--wb-text-sub);
    margin-bottom: 20px;
}

.wb-instructor-headline {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--wb-primary);
    margin-bottom: 20px;
}

.wb-instructor-info p {
    font-size: 0.95rem;
    line-height: 1.9;
    color: var(--wb-text-sub);
    margin-bottom: 16px;
}

.wb-instructor-info blockquote {
    background: var(--wb-bg-alt);
    border-left: 4px solid var(--wb-primary);
    padding: 20px 24px;
    border-radius: 0 var(--wb-radius-sm) var(--wb-radius-sm) 0;
    font-style: italic;
    color: var(--wb-text-main);
    line-height: 1.8;
    margin-top: 20px;
}

/* ==========================================================================
   CTA FOOTER
   ========================================================================== */
.wb-cta-footer {
    padding: 100px 20px;
    text-align: center;
    background: radial-gradient(circle at center, rgba(59, 130, 246, 0.05) 0%, #fff 70%);
}

.wb-cta-footer h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 900;
    margin-bottom: 16px;
}

.wb-cta-footer p {
    font-size: 1rem;
    color: var(--wb-text-sub);
    margin-bottom: 30px;
}

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1100px) {
    .wb-workshop-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .wb-lab-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .wb-testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .wb-container {
        padding: 0 20px;
    }

    .wb-section {
        padding: 70px 0;
    }

    .wb-wide-card {
        grid-template-columns: 1fr;
    }

    .wb-wide-card-content {
        padding: 30px;
    }

    .wb-wide-card-content h3 {
        font-size: 1.4rem;
    }

    .wb-photo-movie-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .wb-instructor-card {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
        padding: 30px;
    }

    .wb-instructor-image {
        max-width: 200px;
        margin: 0 auto;
    }

    .wb-reasons-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {

    .wb-workshop-grid,
    .wb-lab-grid,
    .wb-testimonials-grid {
        grid-template-columns: 1fr;
    }

    .wb-hero-btns {
        flex-direction: column;
        align-items: center;
    }

    .wb-hero-btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .wb-section {
        padding: 60px 0;
    }
}