/*RESET*/
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/*HTML*/
html {
    scroll-behavior: smooth;
}

/*BODY*/
body {
    min-height: 100vh;
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;
    background: linear-gradient( 135deg, #F5EFD6 0%, #f7d1ff 50%, #f1b0ff 100%);
    color: #000000;
}

/*LANGUAGE SWITCHER*/
.language-switcher {
    position: fixed;
    top: 25px;
    right: 30px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    z-index: 1200;
}

.language-btn {
    border: none;
    background: transparent;
    color: #777777;
    padding: 7px 11px;
    border-radius: 7px;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.language-btn:hover {
    color: #000000;
}

.language-btn.active {
    background: #000000;

    color: #ffffff;
}

.language-btn:active {
    transform: scale(0.95);
}

/*SIDEBAR*/
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 230px;
    height: 100vh;
    padding: 40px 25px;
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.55);
    border-right: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 1000;
}

/*SIDEBAR LOGO*/
.sidebar-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-bottom: 60px;
    border-radius: 12px;
    overflow: hidden;
    background: #000000;
    flex-shrink: 0;
}

.sidebar-logo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-nav a,
.sidebar-bottom a {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 14px;
    border-radius: 10px;
    color: #555555;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.sidebar-nav a i,
.sidebar-bottom a i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.sidebar-nav a:hover,
.sidebar-bottom a:hover {
    color: #000000;
    background: rgba(255, 255, 255, 0.7);
    transform: translateX(4px);
}

.sidebar-nav a.active {
    color: #000000;
    background: rgba(255, 255, 255, 0.85);
    font-weight: 600;
}

.sidebar-bottom {
    margin-top: auto;
}

/*MOBILE MENU*/
.menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #000;
    font-size: 1.15rem;
    cursor: pointer;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: left 0.3s ease, right 0.3s ease, background 0.3s ease, transform 0.3s ease;
}

.menu-toggle.sidebar-open {
    left: auto;
    right: 20px;
}

/*MAIN PAGE*/
.about-page {
    margin-left: 230px;
    min-height: 100vh;
    padding: 110px 70px 90px;
}

.about-container {
    width: 100%;
    max-width: 1050px;
    margin: 0 auto;
}

/*HEADER*/

.about-header {
    max-width: 950px;
    padding-bottom: 30px;
}

.header-label {
    margin-bottom: 22px;
}

.about-header h1 {
    max-width: 900px;
    margin-bottom: 30px;
    font-size:3.5rem;
    line-height: 0.98;
    letter-spacing: -0.055em;
    font-weight: 600;
    color: #000000;
}

.about-intro {
    max-width: 700px;
    font-size: 1.15rem;
    line-height: 1.8;
    color: #333333;
}

/*ABOUT SECTIONS*/

.about-section {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 80px;
    align-items: center;
    padding-top: 30px;
    padding-bottom: 30px;
    border-top: 1px solid rgba(0, 0, 0, 0.12);
}

/*SECTION CONTENT*/
.section-content,
.knowledge-content,
.learning-content,
.ai-content {
    max-width: 620px;
}

/*SMALL SECTION LABELS*/
.about-section .section-label {
    margin: 0 0 14px 0;
    font-size: 0.62rem;
    line-height: 1;
    font-weight: 600;
    letter-spacing: 0.16em;
    color: #a5a5a5;
}

/*GENERAL TEXT*/

.about-section p {
    font-size: 1rem;
    line-height: 1.8;
    color: #222222;
}

.about-section p + p {
    margin-top: 22px;
}

/*SECTION HEADINGS*/
.about-section h2 {
    margin-bottom: 25px;
    font-size: 1.4rem;
    line-height: 1.3;
    font-weight: 600;
    color: #000000;
}

/*BLOCKQUOTES*/
.about-quote {
    position: relative;
    margin: 0;
    padding-left: 28px;
    border-left: 2px solid #000000;
}

.quote-mark {
    position: absolute;
    top: -25px;
    left: -12px;
    font-family: Georgia, serif;
    font-size: 3rem;
    line-height: 1;
    color: #000000;
    background: transparent;
    padding: 0 4px;
}

.about-quote > p:not(.quote-author) {
    font-size: 1.2rem;
    line-height: 1.6;
    font-weight: 500;
    color: #111111;
}

.quote-author {
    margin-top: 12px !important;
    font-size: 0.72rem !important;
    line-height: 1.4 !important;
    font-style: italic;
    font-weight: 400 !important;
    color: #999999 !important;
}

/*JOURNEY Text → Quote */
.journey-section {
    grid-template-columns: 1.15fr 1fr;
}

/* BROADER KNOWLEDGE Quote → Text*/

.knowledge-section {
    grid-template-columns: 1fr 1.15fr;
}

/*LEARNING Text → Quote*/

.learning-section {
    grid-template-columns: 1.15fr 1fr;
}

/* AI & TECHNOLOGY Quote → Text*/

.ai-section {
    grid-template-columns: 1fr 1.15fr;
}

/*CERTIFICATIONS LINK*/
.certifications-link {
    display: inline-block;
    margin-top: 28px;
    padding: 11px 18px;
    border-radius: 9px;
    background: #000000;
    color: #ffffff;
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.certifications-link:hover {
    transform: translateY(-2px);
    opacity: 0.8;
}

/*AI EMPHASIS*/
.ai-emphasis {
    padding-left: 18px;
    border-left: 2px solid #000000;
    font-weight: 600 !important;
}

 /*MOBILE*/
@media (max-width: 850px) {

    /* SIDEBAR */
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    /* MOBILE BUTTON */
    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* LANGUAGE */
    .language-switcher {
        top: 20px;
        right: 80px;
    }

    /* MAIN */
    .about-page {
        margin-left: 0;
        padding: 100px 30px 70px;
    }

    /* HEADER */
    .about-header {
        padding-bottom: 60px;
    }

    .about-header h1 {
        font-size: clamp( 2.8rem, 10vw, 4rem);
    }

    .about-intro {
        font-size: 1rem;
    }

    /*SECTIONS*/
    .about-section {
        grid-template-columns: 1fr;
        gap: 35px;
        padding: 60px 0;
    }

    .section-content,
    .knowledge-content,
    .learning-content,
    .ai-content {
        max-width: none;
        width: 100%;
    }

    /*MOBILE SECTION ORDER TEXT → QUOTE*/
    .about-section .section-content,
    .about-section .knowledge-content,
    .about-section .learning-content,
    .about-section .ai-content {
        order: 1;
    }

    .about-section .about-quote {
        order: 2;
    }

    /*QUOTES*/
    .about-quote {
        width: 100%;
        max-width: 600px;
        margin: 0;
    }

    .quote-mark {
        background:transparent;
    }
}


/*SMALL MOBILE*/
@media (max-width: 480px) {

    .about-page {
        padding: 90px 20px 60px;
    }

    .about-header h1 {
        font-size: 2.7rem;
    }

    .about-intro {
        font-size: 0.95rem;
        line-height: 1.75;
    }

    .about-section {
        padding: 50px 0;
        gap: 28px;
    }

    .about-section p {
        font-size: 0.95rem;
        line-height: 1.75;
    }

    .about-section .section-label {
        font-size: 0.58rem;
        margin-bottom: 12px;
    }

    .about-section h2 {
        font-size: 1.25rem;
    }

    .about-quote > p:not(.quote-author) {
        font-size: 1.05rem;
    }

    .quote-author {
        font-size: 0.7rem !important;
    }

    .certifications-link {
        font-size: 0.75rem;
        padding: 10px 15px;
    }
}