:root {
  /* Light Mode - Modern Colors */
  --primary: #222831;             /* Main text or heading color */
  --secondary: #393e46;           /* Subtext or secondary UI */
  --accent: #00adb5;              /* Highlight, CTA, icons */
  --bg: #f8f9fa;                  /* Background */
  --white: #ffffff;               /* Pure white for cards or contrast */
  --transition: 0.3s cubic-bezier(.4, 0, .2, 1);
  --radius: 10px;
  --shadow: 0 2px 8px rgba(34, 40, 49, 0.08);
  --max-width: 1100px;
}

[data-theme="dark"] {
  /* Dark Mode - Modern Colors */
  --primary: #f8f9fa;             /* Light text for dark backgrounds */
  --secondary: #b0b4c1;           /* Muted text */
  --accent: #00adb5;              /* Highlight */
  --bg: #222831;                  /* Deep background */
  --white: #393e46;               /* Card background in dark mode */
}

html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
    background: var(--bg);
    color: var(--primary);
    transition: background var(--transition), color var(--transition);
    position: relative;
}
body::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: url('../assets/small-logo.png');
    background-size: 80px 80px; /* Smaller image size */
    background-repeat: repeat;  /* Repeat across the page */
    background-position: top left;
    opacity: 0.06; /* Subtle transparency */
    z-index: 0;
    pointer-events: none;
}
body > * {
    position: relative;
    z-index: 1;
}
/* Navbar */
header {
    position: sticky;
    top: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
}
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
}
.logo {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--primary);
    letter-spacing: 2px;
}
nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}
nav a {
    text-decoration: none;
    color: var(--primary);
    font-weight: 500;
    transition: color var(--transition);
    position: relative;
}
nav a::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
    position: absolute;
    left: 0;
    bottom: -4px;
}
nav a:hover::after {
    width: 100%;
}
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}
.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all var(--transition);
}
/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    /* background: linear-gradient(120deg, var(--accent) 0%, var(--bg) 100%); */
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary);
    letter-spacing: 1px;
}
.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--secondary);
    margin-bottom: 2rem;
    min-height: 2.2em;
}
.hero-btns {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}
.btn {
    padding: 0.8em 2em;
    border: none;
    border-radius: var(--radius);
    background: var(--primary);
    color: var(--white);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), box-shadow var(--transition);
    box-shadow: var(--shadow);
    text-decoration: none;
    display: inline-block;
}
.btn:hover {
    background: var(--accent);
    color: var(--primary);
}
.dark-toggle {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: var(--accent);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--primary);
    transition: background var(--transition);
}
/* About Section */
section {
    padding: 4rem 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}
.about {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    justify-content: center;
}
.about-img {
    flex: 1 1 200px;
    max-width: 220px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}
.about-img img {
    width: 100%;
    display: block;
    border-radius: 50%;
}
.about-img img:hover {
    transform: scale(1.05);
    /* make the transition smoothly */
    transition: transform var(--transition);
    transition-timing-function: ease-in-out;
    transition-delay: 0.1s;
    transition-duration: 0.2s;
}

.about-img:hover {
    box-shadow: 0 8px 24px var(--accent), 0 2px 8px rgba(34,34,59,0.10);
}

.about-content {
    flex: 2 1 300px;
    min-width: 250px;
}
.about-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary);
}
.about-content p {
    margin-bottom: 1rem;
    color: var(--secondary);
    line-height: 1.6;
}
.highlights {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}
.highlight {
    background: var(--accent);
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    box-shadow: var(--shadow);
    min-width: 120px;
    text-align: center;
}
/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.project-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
    min-height: 350px;
    position: relative;
}
.project-card:hover {
    transform: translateY(-8px) scale(1.03);
    box-shadow: 0 8px 24px var(--accent), 0 2px 8px rgba(34,34,59,0.10);
}
.project-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--accent);
}
.project-content {
    padding: 1.2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.project-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary);
}
.project-desc {
    font-size: 1rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}
.project-tech {
    font-size: 0.95rem;
    color: var(--accent);
    margin-bottom: 0.8rem;
}
.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}
.project-links a {
    color: var(--primary);
    font-size: 1.2rem;
    transition: color var(--transition);
}
.project-links a:hover {
    color: var(--accent);
}
/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}
.skill-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.2rem;
    text-align: center;
    transition: transform var(--transition);
}
.skill-card:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px var(--accent), 0 2px 8px rgba(34,34,59,0.10);
}
.skill-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}
.skill-name {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
}
.skill-bar-bg {
    background: #e0e0e0;
    border-radius: 5px;
    height: 8px;
    width: 100%;
    margin-bottom: 0.5rem;
    overflow: hidden;
}
.skill-bar {
    height: 8px;
    border-radius: 5px;
    background: var(--accent);
    transition: width 1s;
}
.soft-skills {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}
.soft-skill {
    background: var(--accent);
    color: var(--white);
    padding: 0.7rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    box-shadow: var(--shadow);
    margin-bottom: 0.5rem;
}
/* Contact Section */
.contact-form {
    max-width: 500px;
    margin: 0 auto 2rem auto;
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.contact-form input,
.contact-form textarea {
    padding: 0.8em;
    border: 1px solid #ccc;
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    resize: none;
    transition: border var(--transition);
}
.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--accent);
    outline: none;
}
.contact-form .error {
    color: #e63946;
    font-size: 0.95rem;
    margin-top: -0.5rem;
    margin-bottom: 0.5rem;
}
.contact-info {
    text-align: center;
    margin-bottom: 2rem;
}
.contact-info a {
    color: var(--accent);
    text-decoration: none;
    margin: 0 0.5rem;
    font-size: 1.2rem;
    transition: color var(--transition);
}
.contact-info a:hover {
    color: var(--primary);
}
.map {
    width: 100%;
    max-width: 500px;
    margin: 2rem auto 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    min-height: 200px;
}
/* Footer */
footer {
    background: var(--white);
    color: var(--secondary);
    text-align: center;
    padding: 2rem 1rem 1rem 1rem;
    margin-top: 3rem;
    box-shadow: var(--shadow);
}
.footer-social {
    margin-bottom: 1rem;
}
.footer-social a {
    color: var(--accent);
    margin: 0 0.5rem;
    font-size: 1.5rem;
    transition: color var(--transition);
}
.footer-social a:hover {
    color: var(--primary);
}
/* Scroll-to-top */
#scrollTopBtn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: background var(--transition);
}
#scrollTopBtn:hover {
    background: var(--primary);
    color: var(--accent);
}
/* Responsive */
@media (max-width: 900px) {
    .about {
        flex-direction: column;
        text-align: center;
    }
    .about-content {
        min-width: unset;
    }
    .highlights {
        justify-content: center;
    }
    .navbar {
        padding: 1rem;
    }
}
@media (max-width: 700px) {
    section {
        padding: 3rem 1rem;
    }
    .projects-grid, .skills-grid {
        grid-template-columns: 1fr;
    }
    .footer-social a {
        font-size: 1.2rem;
    }
}
@media (max-width: 600px) {
    nav {
        position: fixed;
        top: 0;
        right: -100vw;
        background: var(--white);
        height: 100vh;
        width: 80vw;
        max-width: 320px;
        flex-direction: column;
        gap: 2rem;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 5rem 2rem 2rem 2rem;
        box-shadow: 0 0 24px rgba(34,40,49,0.18);
        transition: right var(--transition);
        z-index: 1001;
        border-top-left-radius: 16px;
        border-bottom-left-radius: 16px;
    }
    nav.active {
        right: 0;
    }
    .hamburger {
        display: flex;
        z-index: 1002;
    }
    .navbar {
        position: relative;
    }
    /* Overlay for sidebar */
    body.sidebar-open::before {
        content: "";
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(34, 40, 49, 0.35);
        z-index: 1000;
        pointer-events: auto;
        transition: opacity var(--transition);
    }
    nav a {
        font-size: 1.2rem;
        padding: 0.5rem 0;
        width: 100%;
        color: var(--primary);
        border-radius: 8px;
        transition: background var(--transition), color var(--transition);
    }
    nav a:hover {
        background: var(--accent);
        color: var(--white);
    }

}

.logo-img {
    width: 40px;
    height: 40px;
    /* border-radius: 50%; */
    object-fit: cover;
    margin-right: 0.5rem;
}

section h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: 2rem;
    letter-spacing: 1.5px;
    position: relative;
    display: inline-block;
    background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

section h2::after {
    content: '';
    display: block;
    margin: 0.7rem auto 0 auto;
    width: 60px;
    height: 4px;
    border-radius: 2px;
    background: var(--accent);
    opacity: 0.7;
}

section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
    text-align: center;
    position: relative;
    display: inline-block;
    
}

section h3::after {
    content: '';
    display: block;
    margin: 0.5rem auto 0 auto;
    width: 40px;
    height: 3px;
    border-radius: 2px;
    background: var(--accent);
    opacity: 0.7;
}

/* ...existing code... */
.skills-radar-container {
    width: 100%;
    max-width: 420px;
    margin: 2rem auto;
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}
#skillsRadar {
    width: 100%;
    height: auto;
    max-width: 400px;
    aspect-ratio: 1/1;
    background: transparent;
    display: block;
}
.radar-tooltip {
    position: absolute;
    min-width: 180px;
    max-width: 260px;
    background: var(--white);
    color: var(--primary);
    border-radius: 8px;
    box-shadow: 0 8px 24px var(--accent), 0 2px 8px rgba(34,34,59,0.10);
    padding: 1rem;
    font-size: 1rem;
    pointer-events: none;
    z-index: 10;
    transition: opacity 0.2s;
    opacity: 0.97;
    font-weight: 500;
}
@media (max-width: 500px) {
    .skills-radar-container {
        max-width: 98vw;
    }
    #skillsRadar {
        max-width: 98vw;
    }
}
/* ...existing code... */