/* ===================================
   About Page
   =================================== */

body {
    background-color: #fff;
    color: #000;
}

header, footer, 
.about-hero, 
.about-philosophy, 
.about-values, 
.about-capabilities, 
.about-experience, 
.about-education, 
.about-tools,
.about-quote {
    width: 93%;
    margin: 0 auto;
}

/* ===================================
   Header
   =================================== */

header {
    height: 80px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo {
    position: absolute;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    font-size: 20px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: #000;
}

.logo::after {
    content: "®";
    font-size: 12px;
    vertical-align: super;
}

.gnb ul {
    display: flex;
}

.gnb ul li a {
    display: inline-block;
    padding: 0 30px;
    height: 80px;
    line-height: 80px;
    font-size: 20px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: #000;
    transition: 0.3s;
}

.gnb ul li a:hover {
    font-weight: 500;
}

/* ===================================
   Hero Section
   =================================== */

.about-hero {
    min-height: 70vh;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding-bottom: 80px;
    margin-bottom: 150px;
    border-bottom: 2px solid #000;
}

.about-hero__intro {
    max-width: 70%;
}

.about-hero__sub {
    text-align: right;
}

/* ===================================
   Philosophy Section
   =================================== */

.about-philosophy {
    display: flex;
    gap: 80px;
    margin-bottom: 200px;
}

.about-philosophy__content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.about-philosophy__content h2 {
    margin-bottom: 20px;
}

.about-philosophy__image {
    width: 45%;
    min-height: 500px;
    background: #f0f0f0;
    background-image: url('https://images.unsplash.com/photo-1498050108023-c5249f4df085?w=800');
    background-size: cover;
    background-position: center;
}

/* ===================================
   Values Section
   =================================== */

.about-values {
    margin-bottom: 200px;
}

.about-values__header {
    display: flex;
    align-items: baseline;
    gap: 30px;
    margin-bottom: 80px;
    padding-bottom: 30px;
    border-bottom: 2px solid #000;
}

.about-values__number {
    font-size: 18px;
    font-weight: 400;
    opacity: 0.7;
}

.about-values__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px 100px;
}

.about-values__item {
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}

.about-values__item h3 {
    margin-bottom: 20px;
}

/* ===================================
   Capabilities Section
   =================================== */

.about-capabilities {
    margin-bottom: 200px;
}

.about-capabilities__header {
    display: flex;
    align-items: baseline;
    gap: 30px;
    margin-bottom: 80px;
    padding-bottom: 30px;
    border-bottom: 2px solid #000;
}

.about-capabilities__number {
    font-size: 18px;
    font-weight: 400;
    opacity: 0.7;
}

.about-capabilities__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
}

.about-capabilities__column h3 {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}

.about-capabilities__column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ===================================
   Experience Section
   =================================== */

.about-experience {
    margin-bottom: 200px;
}

.about-experience__header {
    display: flex;
    align-items: baseline;
    gap: 30px;
    margin-bottom: 80px;
    padding-bottom: 30px;
    border-bottom: 2px solid #000;
}

.about-experience__number {
    font-size: 18px;
    font-weight: 400;
    opacity: 0.7;
}

.about-experience__list {
    display: flex;
    flex-direction: column;
}

.about-experience__item {
    padding: 40px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}

.about-experience__item:first-child {
    padding-top: 0;
}

.about-experience__item-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 15px;
}

.about-experience__item-header span {
    opacity: 0.5;
}

/* ===================================
   Education Section
   =================================== */

.about-education {
    margin-bottom: 200px;
}

.about-education__header {
    display: flex;
    align-items: baseline;
    gap: 30px;
    margin-bottom: 80px;
    padding-bottom: 30px;
    border-bottom: 2px solid #000;
}

.about-education__number {
    font-size: 18px;
    font-weight: 400;
    opacity: 0.7;
}

.about-education__list {
    display: flex;
    flex-direction: column;
}

.about-education__item {
    padding: 40px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}

.about-education__item:first-child {
    padding-top: 0;
}

.about-education__item-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 15px;
}

.about-education__item-header span {
    opacity: 0.5;
}

/* ===================================
   Tools Section
   =================================== */

.about-tools {
    margin-bottom: 200px;
}

.about-tools__header {
    display: flex;
    align-items: baseline;
    gap: 30px;
    margin-bottom: 80px;
    padding-bottom: 30px;
    border-bottom: 2px solid #000;
}

.about-tools__number {
    font-size: 18px;
    font-weight: 400;
    opacity: 0.7;
}

.about-tools__content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.about-tools__group h3 {
    margin-bottom: 30px;
}

.about-tools__icons {
    display: flex;
    gap: 40px;
    flex-wrap: wrap;
}

.about-tools__icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.about-tools__icon img {
    width: 50px;
    height: 50px;
}

.about-tools__icon span {
    font-size: 12px;
    opacity: 0.6;
}

.about-tools__languages {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.about-tools__languages strong {
    font-weight: 500;
}

/* ===================================
   Quote Section
   =================================== */

.about-quote {
    margin-bottom: 200px;
    padding: 100px 0;
    text-align: center;
}

.about-quote blockquote {
    font-style: italic;
    max-width: 900px;
    margin: 0 auto;
}

/* ===================================
   Footer
   =================================== */

footer {
    padding-bottom: 40px;
    overflow: hidden;
}

.footer_top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 150px;
}

.footer_list {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.footer_btm {
    text-align: center;
    margin-bottom: 100px;
}

.footer_copyright {
    width: 100%;
    height: auto;
}

/* ===================================
   Responsive
   =================================== */

@media (max-width: 1200px) {
    .about-philosophy {
        flex-direction: column;
    }
    
    .about-philosophy__image {
        width: 100%;
        min-height: 400px;
    }
    
    .about-capabilities__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .about-hero {
        flex-direction: column;
        align-items: flex-start;
        gap: 40px;
        min-height: 50vh;
    }
    
    .about-hero__intro {
        max-width: 100%;
    }
    
    .about-hero__sub {
        text-align: left;
    }
    
    .about-values__grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-capabilities__grid {
        grid-template-columns: 1fr;
    }
    
    .about-experience__item-header,
    .about-education__item-header {
        flex-direction: column;
        gap: 5px;
    }
    
    .about-tools__icons {
        gap: 25px;
    }
    
    .about-quote {
        padding: 60px 0;
    }
    
    .footer_top {
        flex-direction: column;
        gap: 25px;
        margin-bottom: 80px;
    }
    
    header {
        height: 60px;
    }
    
    .logo {
        font-size: 16px;
    }
    
    .gnb ul li a {
        padding: 0 15px;
        height: 60px;
        line-height: 60px;
        font-size: 16px;
    }
}