:root {
    --bg-color: #ffffff;
    --text-color: #000000;
    --card-bg: #333333;
    --card-text: #ffffff;
    --footer-line: #000000;
    --btn-bg: #666666;
    --transition: 0.3s ease;
}


[data-theme="dark"] {
    --bg-color: #121212;
    --text-color: #f0f0f0;
    --card-bg: #1e1e1e;
    --card-text: #ffffff;
    --footer-line: #444444;
    --btn-bg: #444444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}


nav{
    font-family: "Helvetica Neue";
    font-color: var(--text-color);
}


body {
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color var(--transition), color var(--transition);
    padding: 40px 8%;
    min-height: 100vh;
    display: flex;
    flex-direction:column;
}


header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 60px;
}

.logo {
    font-size: 52px;
    font-weight: 800;
    letter-spacing: -2px;
}

nav {
    display: flex;
    gap: 35px;
    align-items: center;
    padding-top: 10px;
}

.dark-mode-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
}

.toggle-icon {
    width: 40px;
    height: 20px;
    background-color: var(--text-color);
    border-radius: 20px;
    position: relative;
}

.toggle-icon::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--bg-color);
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: var(--transition);
}

[data-theme="dark"] .toggle-icon::after {
    left: 22px;
}


.hero {
    margin-bottom: 80px;
}

.quote-mark {
    font-size: 120px;
    font-weight: 900;
    line-height: 0.5;
    display: block;
    margin-bottom: 20px;
}

.main-title {
    font-size: clamp(60px, 12vw, 130px); 
    line-height: 0.85;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -6px;
}

.episode {
    text-align: right;
    font-size: 32px;
    font-weight: 300;
    margin-top: 10px;
}

.profile-card {
    background-color: var(--card-bg);
    color: var(--card-text);
    padding: 60px;
    display: flex;
    align-items: center;
    gap: 50px;
    border-radius: 4px;
    margin-bottom: 100px;
}

@media screen and (max-width: 992px) {
    .profile-card { flex-direction: column; padding: 40px; text-align: left; }
    .profile-pic { width: 100%; height: auto; aspect-ratio: 1/1; }
    .read-btn { float: none; width: 100%; text-align: center; }
}

.profile-pic {
    width: 400px;
    height: 400px;
    background: url('photo1.jpg') center/cover;
    background-color: #555;
    border-radius: 25px;
    flex-shrink: 0;
}

.profile-info {
    flex-grow: 1;
    position: relative;
}

.label {
    font-size: 18px;
    margin-bottom: 5px;
}

.name {
    font-size: clamp(50px, 8vw, 100px);
    font-weight: 900;
    font-style: italic;
    line-height: 1;
    margin-bottom: 20px;
    letter-spacing: -3px;
}

.details {
    font-size: 24px;
    font-style: italic;
    font-weight: 300;
    line-height: 1.4;
}

.read-btn {
    display: inline-block;
    background-color: var(--btn-bg);
    color: #fff;
    padding: 12px 25px;
    text-decoration: none;
    font-size: 18px;
    margin-top: 30px;
    float: right;
}

footer {
    margin-top: auto;
    border-top: 2px solid var(--footer-line);
    padding: 30px 0;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 30px;
}


@media (max-width: 600px) {
    body { padding: 20px; }
    header { flex-direction: column; gap: 20px; }
    nav { width: 100%; justify-content: space-between; }
    .main-title { letter-spacing: -2px; }
    footer { flex-direction: column-reverse; gap: 20px; text-align: center; }
    .footer-links { justify-content: center; }
}


.logo {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -3px;
}

.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 18px;
    font-weight: 400;
}

.theme-switch {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 18px;
}

.switch-pill {
    width: 44px;
    height: 22px;
    background-color: var(--text-color);
    border-radius: 20px;
    position: relative;
    transition: var(--transition-speed);
}

.switch-pill::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background-color: var(--bg-color);
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: var(--transition-speed);
}

[data-theme="dark"] .switch-pill::after {
    left: 24px;
}

.container {
    max-width: 850px; 
    margin: 0 auto;
    padding: 60px 20px;
}

.interview-item {
    margin-bottom: 80px;
}

.question {
    font-size: 32px;
    font-weight: 700;
    font-style: italic;
    margin-bottom: 24px;
    line-height: 1.2;
    letter-spacing: -1px;
}

.answer {
    font-size: 18px;
    font-weight: 400;
    color: var(--text-color);
    margin-bottom: 20px;
    text-align: justify;
}

.pull-quote {
    font-size: 48px;
    font-weight: 800;
    font-style: italic;
    text-align: left;
    margin: 60px 0;
    padding: 0 40px;
    line-height: 1.1;
    letter-spacing: -2px;
    border-left: 4px solid var(--text-color); 
}

.renalabs-image {
    margin: 80px 0;
    text-align: center;
}

.work-img {
    max-width: 100%;
    height: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.footer {
    max-width: var(--container-width);
    margin: 100px auto 40px;
    padding: 30px 20px;
    border-top: 2px solid var(--line-color);
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    font-weight: 500;
}

.footer-right {
    display: flex;
    gap: 30px;
}

@media screen and (max-width: 768px) {
    .navbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .logo { font-size: 40px; }
    
    .question { font-size: 24px; }
    
    .pull-quote { 
        font-size: 32px; 
        padding: 0 20px;
    }
    
    .footer {
        flex-direction: column;
        gap: 20px;
    }
}