/* === BỐ CỤC CHÍNH NÂNG CẤP === */
.intro-section,
.philosophy-section,
.core-values,
.people-section,
.commit-section,
.mission-section,
.cta-section {
    padding: 100px 8%;
    background: #fff;
    line-height: 1.7;
    position: relative;
    overflow: hidden;
}

.philosophy-section,
.people-section {
    background: linear-gradient(135deg, #f8fcff 0%, #f0f9ff 100%);
}

/* Hiệu ứng nền động */
.philosophy-section::before,
.people-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 70, 88, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

/* === TIÊU ĐỀ CHUNG NÂNG CẤP === */
h1, h2, h3 {
    color: #004658;
    font-weight: 800;
    margin-bottom: 30px;
    line-height: 1.2;
    position: relative;
}

h1 {
    font-size: 3.2em;
    text-align: center;
    margin-bottom: 50px;
    background: linear-gradient(135deg, #004658, #00a8cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: 2.5em;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-align: center;
    position: relative;
    padding-bottom: 20px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #004658, #00a8cc);
    border-radius: 2px;
}

h3 {
    font-size: 1.6em;
    margin-top: 15px;
}

.philosophy-section h3,
.mission-section h3 {
    margin-top: 10px;
    text-align: center;
}

/* === GIỚI THIỆU NÂNG CẤP === */
.intro-section {
    display: flex;
    gap: 60px;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    padding-top: 120px;
}

.intro-content {
    flex: 1;
    min-width: 300px;
    position: relative;
    z-index: 1;
}

.intro-section h1 {
    text-align: center;
    margin-bottom: 40px;
}

/* === NỘI DUNG GIỚI THIỆU NÂNG CẤP === */
.intro-content p {
    text-align: justify;
    line-height: 1.8;
    font-size: 1.1em;
    color: #2c3e50;
    margin-bottom: 25px;
}

.intro-content blockquote {
    text-align: justify;
    margin: 30px 0;
    padding: 25px 30px;
    border-left: 5px solid #00a8cc;
    color: #555;
    max-width: 700px;
    display: inline-block;
    background: linear-gradient(135deg, #f8fcff, #f0f9ff);
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 70, 88, 0.08);
    font-size: 1.1em;
    line-height: 1.6;
    position: relative;
    overflow: hidden;
}

.intro-content blockquote::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 4em;
    color: rgba(0, 168, 204, 0.1);
    font-family: serif;
    line-height: 1;
}

.intro-image {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.intro-section img {
    width: 100%;
    max-width: 500px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.5s ease;
    position: relative;
    z-index: 2;
}

.intro-image::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid #00a8cc;
    border-radius: 25px;
    top: 20px;
    left: 20px;
    z-index: 1;
    transition: all 0.5s ease;
}

.intro-image:hover::before {
    top: 15px;
    left: 15px;
}

.intro-section img:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
}

/* === CHỮ NHẬT BẢN NÂNG CẤP === */
.jp-text {
    font-family: "Noto Sans JP", sans-serif;
    display: block;
    font-size: 1.2em;
    color: #00a8cc;
    margin-top: 10px;
    font-weight: 600;
    letter-spacing: 1px;
}

/* === BẢNG GIÁ TRỊ CỐT LÕI NÂNG CẤP === */
.values-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 30px;
    font-size: 1em;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 70, 88, 0.1);
}

.values-table th,
.values-table td {
    border: none;
    padding: 20px 25px;
    text-align: left;
    transition: all 0.3s ease;
}

.values-table th {
    background: linear-gradient(135deg, #004658, #00a8cc);
    color: white;
    font-weight: 700;
    font-size: 1.1em;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.values-table tr:nth-child(even) {
    background-color: #f8fcff;
}

.values-table tr:nth-child(odd) {
    background-color: white;
}

.values-table tr:hover td {
    background-color: #f0f9ff;
    transform: translateX(5px);
}

.values-table td:first-child {
    font-weight: 600;
    color: #004658;
    border-right: 2px solid #f0f0f0;
}

/* === BLOCKQUOTE NÂNG CẤP === */
blockquote {
    font-style: italic;
    border-left: 5px solid #00a8cc;
    padding: 25px 30px;
    margin: 30px auto;
    color: #555;
    background: linear-gradient(135deg, #f8fcff, #f0f9ff);
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 70, 88, 0.08);
    max-width: 800px;
    display: inline-block;
    text-align: left;
    position: relative;
    overflow: hidden;
    font-size: 1.1em;
    line-height: 1.6;
}

blockquote::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 4em;
    color: rgba(0, 168, 204, 0.1);
    font-family: serif;
    line-height: 1;
}

/* === NÚT NÂNG CẤP === */
.btn-about {
    display: inline-block;
    background: linear-gradient(135deg, #004658, #00a8cc);
    color: #fff;
    padding: 16px 40px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    margin-top: 30px;
    font-weight: 600;
    font-size: 1.1em;
    letter-spacing: 0.5px;
    box-shadow: 0 8px 25px rgba(0, 70, 88, 0.3);
    position: relative;
    overflow: hidden;
}

.btn-about::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-about:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 70, 88, 0.4);
}

.btn-about:hover::before {
    left: 100%;
}

/* === KÊU GỌI HÀNH ĐỘNG NÂNG CẤP === */
.cta-section {
    text-align: center;
    background: linear-gradient(135deg, #f2fbff 0%, #e8f7ff 100%);
    border-top: 3px solid #00a8cc;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 168, 204, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.cta-section h2 {
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.cta-section p {
    max-width: 700px;
    margin: 0 auto 35px auto;
    color: #444;
    font-size: 1.1em;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* === CĂN GIỮA CÁC PHẦN === */
.philosophy-section,
.core-values,
.people-section,
.commit-section,
.mission-section,
.cta-section {
    text-align: center;
}

.philosophy-section ul,
.people-section ul,
.commit-section ul {
    display: inline-block;
    text-align: left;
    margin-top: 25px;
    max-width: 800px;
}

.core-values table {
    margin: 30px auto;
    text-align: left;
    max-width: 1000px;
}

/* === CAM KẾT ĐÀO TẠO NÂNG CẤP === */
.commit-section {
    text-align: left;
    width: 100%;
    padding: 80px 5%;
    background: linear-gradient(135deg, #f9fcfd 0%, #f0f9ff 100%);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 70, 88, 0.08);
    position: relative;
    overflow: hidden;
}

.commit-section::before {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 70, 88, 0.03) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

/* === MỖI KHỐI CAM KẾT NÂNG CẤP === */
.commit-item {
    background: linear-gradient(135deg, #ffffff 0%, #f8fcff 100%);
    border-left: 6px solid #00a8cc;
    border-radius: 15px;
    padding: 30px 35px;
    width: 100%;
    margin-bottom: 30px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.commit-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 168, 204, 0.05), transparent);
    transition: left 0.6s;
}

.commit-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.commit-item:hover::before {
    left: 100%;
}

/* === TIÊU ĐỀ MỖI CAM KẾT NÂNG CẤP === */
.commit-item h3 {
    color: #004658;
    font-size: 1.3em;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    position: relative;
}

.commit-item h3::before {
    content: "✔";
    background: linear-gradient(135deg, #004658, #00a8cc);
    color: #fff;
    font-size: 0.9em;
    padding: 8px 12px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 70, 88, 0.3);
    transition: all 0.3s ease;
}

.commit-item:hover h3::before {
    transform: scale(1.1) rotate(5deg);
}

/* === NỘI DUNG NÂNG CẤP === */
.commit-item p {
    color: #2c3e50;
    line-height: 1.8;
    margin: 15px 0;
    text-align: justify;
    font-size: 1.05em;
}

.commit-item ul {
    list-style: none;
    padding-left: 25px;
    margin: 15px 0 15px 15px;
}

.commit-item ul li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
    line-height: 1.6;
    color: #444;
}

.commit-item ul li::before {
    content: "▶";
    position: absolute;
    left: 0;
    color: #00a8cc;
    font-weight: bold;
    font-size: 0.9em;
    transition: all 0.3s ease;
}

.commit-item ul li:hover::before {
    transform: translateX(3px);
    color: #004658;
}

/* === PHẦN CHÂM NGÔN NÂNG CẤP === */
.commit-section .motto {
    text-align: center;
    font-size: 1.3em;
    color: #004658;
    margin-top: 50px;
    line-height: 1.8;
    padding: 25px;
    background: linear-gradient(135deg, #ffffff, #f8fcff);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 70, 88, 0.08);
    border: 2px solid rgba(0, 168, 204, 0.1);
    position: relative;
    z-index: 1;
}

.philosophy-section ul {
    list-style-type: none;
    padding-left: 0;
}

.philosophy-section ul li {
    padding: 15px 20px;
    margin-bottom: 15px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 70, 88, 0.08);
    transition: all 0.3s ease;
    border-left: 4px solid #00a8cc;
}

.philosophy-section ul li:hover {
    transform: translateX(10px);
    box-shadow: 0 8px 25px rgba(0, 70, 88, 0.12);
}

/* === RESPONSIVE MOBILE & TABLET NÂNG CẤP === */
@media (max-width: 1024px) {
    .intro-section {
        gap: 40px;
        flex-wrap: wrap;
    }
    
    .intro-section img {
        max-width: 450px;
        margin: 0 auto;
    }
    
    h1 {
        font-size: 2.8em;
    }
    
    h2 {
        font-size: 2.2em;
    }
}

@media (max-width: 768px) {
    .intro-section,
    .philosophy-section,
    .core-values,
    .people-section,
    .commit-section,
    .mission-section,
    .cta-section {
        padding: 80px 6%;
    }
    
    .intro-section {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }
    
    .intro-section img {
        max-width: 90%;
    }
    
    .values-table th,
    .values-table td {
        font-size: 14px;
        padding: 15px 20px;
    }
    
    h1 {
        font-size: 2.2em;
    }
    
    h2 {
        font-size: 1.8em;
    }
    
    h3 {
        font-size: 1.3em;
    }
    
    .btn-about {
        padding: 14px 32px;
        font-size: 1em;
    }
    
    .commit-item {
        padding: 25px 20px;
    }
    
    .commit-item h3 {
        font-size: 1.2em;
    }
}

@media (max-width: 480px) {
    .intro-section,
    .philosophy-section,
    .core-values,
    .people-section,
    .commit-section,
    .mission-section,
    .cta-section {
        padding: 60px 5%;
    }
    
    h1 {
        font-size: 1.8em;
    }
    
    h2 {
        font-size: 1.5em;
    }
    
    .values-table {
        font-size: 12px;
    }
    
    blockquote {
        font-size: 1em;
        padding: 20px 25px;
        margin: 20px 0;
    }
    
    .btn-about {
        width: 100%;
        text-align: center;
        display: block;
        padding: 16px 20px;
    }
    
    .commit-item h3 {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

/* Hiệu ứng mờ dần nâng cấp */
.fade-section {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s cubic-bezier(0.215, 0.61, 0.355, 1);
}

.fade-section.show {
    opacity: 1;
    transform: translateY(0);
}

/* Animation delay cho các phần tử */
.intro-section { transition-delay: 0.1s; }
.philosophy-section { transition-delay: 0.2s; }
.core-values { transition-delay: 0.3s; }
.people-section { transition-delay: 0.4s; }
.commit-section { transition-delay: 0.5s; }
.cta-section { transition-delay: 0.6s; }