/* ===== CSS Variables / Theme ===== */
:root {
    --bg: #171717;
    --text: #fbfbfb;
    --text-secondary: #888;
    --border: #333;
    --nav-bg: #171717;
    --hover: #222;
    --link: #ccc;
    --link-hover: #fff;
    --card-bg: #1e1e1e;
    --card-shadow: rgba(0, 0, 0, 0.4);
}

[data-theme="light"] {
    --bg: #f8f8f8;
    --text: #111;
    --text-secondary: #666;
    --border: #ddd;
    --nav-bg: #f8f8f8;
    --hover: #eee;
    --link: #444;
    --link-hover: #000;
    --card-bg: #fff;
    --card-shadow: rgba(0, 0, 0, 0.15);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
    background-color: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background-color 0.3s, color 0.3s;
}

/* ===== Navigation ===== */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    position: sticky;
    top: 0;
    background-color: var(--nav-bg);
    z-index: 100;
    border-bottom: 1px solid var(--border);
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 0.5px;
    transition: color 0.2s;
    padding: 4px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text);
}

.nav-link.active {
    border-bottom: 1.5px solid var(--text);
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 16px;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 6px;
    transition: background-color 0.2s;
    line-height: 1;
}

.theme-toggle:hover {
    background-color: var(--hover);
}

/* ===== Content styles ===== */
.content {
    width: 100%;
    display: flex;
    flex-direction: column;
}

/* ===== Image container ===== */
.image-container {
    width: 100%;
    height: 50vh;
    margin: 0;
    overflow: hidden;
    position: relative;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Circle mask */
.image-container::before {
    content: '';
    position: absolute;
    top: 42%;
    left: 51%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background-color: var(--bg);
    border-radius: 50%;
    z-index: 1;
    transition: background-color 0.3s;
}

/* Avatar */
.image-container::after {
    content: '';
    position: absolute;
    top: 42%;
    left: 51%;
    transform: translate(-50%, -50%);
    width: 290px;
    height: 290px;
    background: url('../assets/images/selfie.JPG') 25% 58%;
    background-size: 125%;
    border-radius: 50%;
    z-index: 2;
}

/* ===== Text container ===== */
.text-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 5px var(--card-shadow);
    border: 1px solid var(--border);
    transition: background-color 0.3s, border-color 0.3s;
}

.text-container h1 {
    margin-bottom: 10px;
    font-size: 24px;
    color: var(--text);
}

.text-container p {
    line-height: 1.8;
    font-size: 14px;
    color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media screen and (max-width: 768px) {
    .navbar {
        padding: 16px 20px;
    }

    .nav-links {
        gap: 16px;
    }

    .nav-link {
        font-size: 13px;
    }

    .image-container::before {
        width: 200px;
        height: 200px;
        top: 45%;
    }

    .image-container::after {
        width: 190px;
        height: 190px;
        top: 45%;
    }

    .text-container {
        margin: 10px;
        padding: 20px;
    }

    .text-container h1 {
        font-size: 20px;
    }

    .text-container p {
        font-size: 13px;
    }
}

@media screen and (max-width: 375px) {
    .image-container::before {
        width: 150px;
        height: 150px;
    }

    .image-container::after {
        width: 140px;
        height: 140px;
    }

    .nav-links {
        gap: 12px;
    }

    .nav-link {
        font-size: 12px;
    }

    .text-container {
        margin: 8px;
        padding: 15px;
    }

    .text-container h1 {
        font-size: 18px;
    }

    .text-container p {
        font-size: 12px;
    }
}