/* YUMEMI STUDIO Website Styles */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8fafc;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    margin-top: 80px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(227, 232, 255, 0.9) 0%, rgba(243, 232, 255, 0.9) 100%),
                url('../images/yume05512_A_bright_future_for_children_and_an_artificial_inte_5d688284-62cc-4d54-93d9-dbe3051fedc7_1(1).png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(1px);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 3rem;
    color: #6366f1;
    margin-bottom: 1rem;
    font-weight: bold;
}

.hero p {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

/* Section Styles */
.section {
    padding: 4rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #6366f1;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    border-radius: 2px;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: #6366f1;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #64748b;
    line-height: 1.6;
}

/* Course Categories */
.course-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.category-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    backdrop-filter: blur(10px);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.category-card:nth-child(1)::before {
    background-image: url('../images/family-learning-1(1).jpg');
}

.category-card:nth-child(2)::before {
    background-image: url('../images/hero-illustration(1).png');
}

.category-card:nth-child(3)::before {
    background-image: url('../images/yume0551.png');
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.category-header {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.95) 0%, rgba(139, 92, 246, 0.95) 100%);
    color: white;
    padding: 1.5rem;
    text-align: center;
    position: relative;
    z-index: 2;
    backdrop-filter: blur(10px);
}

.category-header h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.category-content {
    padding: 2rem;
    position: relative;
    z-index: 2;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.course-list {
    list-style: none;
    margin-bottom: 1.5rem;
}

.course-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e2e8f0;
    color: #64748b;
}

.course-list li:last-child {
    border-bottom: none;
}

/* Instructor Section */
.instructor-highlight {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.95) 100%),
                url('../images/yume05512_httpss.mj.run6m59rR43ixg_The_warm_sunshine_outside__23df3433-c7be-437b-ab7e-62be6a36d6c6_3.png');
    background-size: cover;
    background-position: center;
    border-radius: 15px;
    padding: 3rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    margin-top: 3rem;
    position: relative;
    backdrop-filter: blur(10px);
}

.achievements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.achievement {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
}

.achievement-number {
    font-size: 2rem;
    font-weight: bold;
    display: block;
}

.achievement-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: #a855f7;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    display: block;
    padding: 0.25rem 0;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #a855f7;
}

.footer-bottom {
    border-top: 1px solid #475569;
    padding-top: 1rem;
    text-align: center;
    color: #94a3b8;
}

.contact-info {
    background: rgba(168, 85, 247, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 1rem;
}

.contact-email {
    color: #a855f7;
    font-weight: bold;
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid,
    .course-categories {
        grid-template-columns: 1fr;
    }

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

.btn-secondary {
    background: #64748b;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #475569;
    transform: translateY(-2px);
}

/* Footer Logo Styles */
.footer-logo {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 2rem;
}

.footer-logo-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: block;
    filter: brightness(1.1) contrast(1.1);
    animation: float 3s ease-in-out infinite;
}

.footer-logo-text {
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    margin: 0;
    text-align: center;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Footer Logo */
.footer-logo {
    text-align: center;
    padding: 2rem 0;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    margin-top: 2rem;
}

.footer-logo img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
    filter: brightness(1.2) contrast(1.1);
}

.footer-logo p {
    color: #94a3b8;
    font-size: 0.9rem;
    margin: 0;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Security Badge */
.security-badge {
    text-align: center;
    margin: 1rem 0;
}

.security-badge img {
    width: 80px;
    height: auto;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.security-badge img:hover {
    opacity: 1;
}

.security-badge p {
    font-size: 0.8rem;
    color: #64748b;
    margin-top: 0.5rem;
}