/* Color Palette & Theme Variables */
:root {
    --color-white: #FFFFFF;
    --color-dark: #0D0B61;
    --color-accent-blue: #294669;
    --color-accent-teal: #478B8D;
    --color-accent-yellow: #E4D329;
}

body.light-theme {
    --bg-color: var(--color-white);
    --text-color: #000000;
    --border-color: #000000;
    --card-bg: var(--color-white);
}

body.dark-theme {
    --bg-color: var(--color-dark);
    --text-color: var(--color-white);
    --border-color: var(--color-white);
    --card-bg: var(--color-dark);
}

/* Global Anti-Slop Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border-radius: 0 !important;
    box-shadow: none !important;
    transition: none !important;
    font-family: monospace, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
}

/* Layout Elements */
header, section, footer {
    border: 2px solid var(--border-color);
    margin-bottom: 20px;
    padding: 20px;
}

/* Typography */
.section-title {
    margin-bottom: 15px;
    text-transform: uppercase;
    background-color: var(--text-color);
    color: var(--bg-color);
    display: inline-block;
    padding: 5px 10px;
}

.personal-intro {
    font-size: 2rem;
    margin-bottom: 10px;
}

.professional-intro {
    font-size: 1.2rem;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.avatar {
    font-weight: bold;
    font-size: 1.5rem;
    padding: 5px 10px;
    background-color: var(--color-accent-teal);
    color: var(--color-white);
    border: 2px solid var(--border-color);
}

/* Hamburger button — hidden on desktop */
.hamburger {
    display: none;
    font-size: 1.8rem;
    background: none;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 4px 10px;
    cursor: pointer;
}

nav {
    display: flex;
    gap: 15px;
    align-items: center;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: bold;
    border-bottom: 2px solid transparent;
}

nav a:hover {
    border-bottom: 2px solid var(--color-accent-yellow);
}

button {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    padding: 5px 10px;
    cursor: pointer;
    font-weight: bold;
    text-transform: uppercase;
}

button:hover {
    background-color: var(--color-accent-yellow);
    color: #000000;
    border-color: #000000;
}

/* Projects Carousel Section */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
    flex-wrap: wrap;
    gap: 10px;
}

.carousel-controls {
    display: flex;
    gap: 10px;
}

.carousel-slide {
    display: none; 
}

.carousel-slide.active {
    display: block; 
}

.project-image-placeholder {
    width: 100%;
    height: 300px;
    background-color: var(--color-accent-blue);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
    text-align: center;
    padding: 10px;
}

.skill-tag {
    display: inline-block;
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    margin-right: 5px;
    margin-top: 10px;
    background-color: var(--color-accent-teal);
    color: var(--color-white);
}

/* Knowledge Section */
.skill-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.skill-card {
    border: 2px solid var(--border-color);
    background-color: var(--card-bg);
}

.expand-btn {
    width: 100%;
    text-align: left;
    border: none;
    border-bottom: 2px solid var(--border-color);
    padding: 10px;
}

.expand-btn:hover {
    background-color: var(--color-accent-blue);
    color: var(--color-white);
}

.skill-content {
    display: none;
    padding: 10px;
}

.skill-content.open {
    display: block; 
}

.education-card {
    border: 2px solid var(--border-color);
    background-color: var(--color-accent-blue);
    color: var(--color-white);
    padding: 15px;
}

.education-title {
    margin-bottom: 10px;
    color: var(--color-accent-yellow);
    text-transform: uppercase;
}

.education-institution {
    font-weight: bold;
    font-size: 1.1rem;
}

/* Contact Section */
.contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.contact-btn {
    display: inline-block;
    padding: 10px 15px;
    border: 2px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    text-decoration: none;
    font-weight: bold;
}

.contact-btn:hover {
    background-color: var(--color-accent-yellow);
    color: #000000;
    border-color: #000000;
}

/* Footer */
.site-footer {
    text-align: center;
    background-color: var(--color-accent-teal);
    color: var(--color-white);
    border-color: var(--border-color);
}

/* ==============================
   RESPONSIVE — Tablet (≤ 768px)
   ============================== */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    nav {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        border-top: 2px solid var(--border-color);
        margin-top: 10px;
    }

    nav.open {
        display: flex;
    }

    nav a,
    nav button {
        width: 100%;
        padding: 12px 10px;
        border-bottom: 1px solid var(--border-color);
        text-align: left;
    }

    nav a:last-of-type {
        border-bottom: 1px solid var(--border-color);
    }

    .personal-intro {
        font-size: 1.5rem;
    }

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

    .skill-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .project-image-placeholder {
        height: 200px;
        font-size: 1.2rem;
    }
}

/* ==============================
   RESPONSIVE — Phone (≤ 480px)
   ============================== */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    header, section, footer {
        padding: 15px;
        margin-bottom: 15px;
    }

    .personal-intro {
        font-size: 1.25rem;
    }

    .skill-grid {
        grid-template-columns: 1fr;
    }

    .contact-links {
        flex-direction: column;
    }

    .contact-btn {
        width: 100%;
        text-align: center;
    }

    .project-image-placeholder {
        height: 150px;
        font-size: 1rem;
    }
}