html, body, div, section, nav, ul, li, a, button, input, textarea {
    box-sizing: border-box;
}

:root {
    --primary-bg-color: #f8f9fa;
    --deep-navy: #0a192f;
    /* --rich-teal: hsl(48, 89%, 40%); */
    --rich-teal: #f1c40f;

    /* --rich-teal: #64ffda; */
    --coral-accent: #ff6b6b;
    --warm-yellow: #ffd166;
    --turquoise: #06d6a0;
    /* --turquoise: #06d6a0; */
    
    --primary-text-color: #333;
    --secondary-text-color: #666;
    --light-text-color: #f8f9fa;
    
    --navbar-bg-color: rgba(10, 25, 47, 0.85);
    --navbar-text-color: #fff;
    --focus-outline-color: var(--rich-teal);
    
    --button-bg-color: var(--rich-teal);
    --button-hover-bg-color: #ffd427;
    /* --button-hover-bg-color: #4ecdc4; */
    --button-text-color: #0a192f;
    
    --section-bg-color: #ffffff;
    --card-bg-color: #f0f4f8;
    --hover-bg-color: rgba(100, 255, 218, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--primary-bg-color);
    font-family: 'Poppins', Arial, sans-serif;    
    color: var(--primary-text-color);
    line-height: 1.6;
}

/* Navigation Bar */
.navbar {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    height: 5em;
    z-index: 100;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    background-color: var(--navbar-bg-color);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 1em;
    transition: all 0.4s ease-out;
    color: var(--navbar-text-color);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.navbar.smaller {
    left: 25%;
    width: 50%;
    height: 3.5em;
    border-bottom-left-radius: 25px;
    border-bottom-right-radius: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.navbar.smaller .nav-links {
    font-size: 14px;
}

.navbar.smaller .nav-links a {
    padding: 0.325rem 0.625rem;
}

.navbar.smaller .logo {
    height: 1.8em;
    width: 1.8em;
    padding: 0.325rem 0.625rem !important;
}


.nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    width: 100%;
}

.nav-links li {
    list-style: none;
}

.nav-links li:first-child {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
}

.nav-links a {
    position: relative;
    display: inline-block;
    padding: 0.625rem;
    color: var(--navbar-text-color);
    text-decoration: none;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border-radius: 5px;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    overflow: hidden;
    transition: transform 0.3s ease;
    height: 2.5em;
    width: 2.5em;
    padding: 0.25rem 1rem !important;
    box-sizing: content-box; /* Ensure padding doesn't affect dimensions */
}

.logo img {
    display: block;
    height: 100%;
    width: 100%;
    object-fit: cover;
    border-radius: 50%;
    transition: all 0.3s ease;
    padding: 0;
}

.logo:hover {
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.15);
}

.navbar .nav-links li a.logo::after {
    display: none;
}

.nav-links a:hover {
    background-color: var(--hover-bg-color);
    color: var(--rich-teal);
    transform: translateY(-2px);
}

.nav-links a:focus, .nav-links a:focus-visible {
    outline: 2px solid var(--focus-outline-color);
    outline-offset: 2px;
}

.navbar .nav-links li a::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--rich-teal);
    transform-origin: bottom right;
    transition: transform 0.4s cubic-bezier(0.65, 0.05, 0.36, 1);
}

.navbar .nav-links li a:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* Hero Section */
.hero-container {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background-color: var(--deep-navy);
    transition: height 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-container.scrolled {
    height: 50vh;
    min-height: 300px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 25, 47, 0.9) 0%, rgba(21, 101, 192, 0.7) 100%);
    z-index: 1;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
    filter: grayscale(100%) contrast(150%);
}

.hero-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 2;
    width: 90%;
    max-width: 700px;
    transition: transform 0.5s ease-out;
}

.hero-container.scrolled .hero-text {
    transform: translate(-50%, -50%) scale(0.85);
}

.hero-text h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
    color: #fff;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.05em;
    margin: 0.3em 0;
}

.hero-text p {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(1rem, 2vw, 1.5rem);
    font-weight: 300;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
    margin: 0;
}

.avatar {
    width: clamp(80px, 15vw, 160px);
    height: clamp(80px, 15vw, 160px);
    aspect-ratio: 1/1;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 20px;
    display: block;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.6);
    border: 3px solid rgba(255, 255, 255, 0.2);
    transition: width 0.5s ease, height 0.5s ease, transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.avatar:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.8);
    border-color: var(--rich-teal);
    cursor: pointer;
}

.hero-container.scrolled .avatar {
    width: clamp(60px, 10vw, 120px);
    height: clamp(60px, 10vw, 120px);
}

main {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 60px 2em;
}

.section-card {
    width: 85%;
    max-width: 1000px;
    margin: 0 auto 30px;
    padding: 40px;
    background-color: var(--section-bg-color);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.section-card.in-view {
    opacity: 1;
    transform: translateY(0);
}

.section-divider {
    width: 100%;
    height: 50px;
    position: relative;
    overflow: hidden;
}

.section-divider::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--rich-teal), transparent);
    border-radius: 2px;
}

.section-underline {
    display: none;
}

.section-card h1 {
    display: inline-block;
    position: relative;
    text-align: center;
}

.section-card h1::after {
    content: "";
    display: block;
    margin: 0 auto 0.5em;
    width: 100%;
    max-width: 80%;
    height: 4px;
    background-color: var(--rich-teal);
    border-radius: 2px;
}

h1 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.2em;
    font-weight: 700;
    color: var(--deep-navy);
    margin-top: 0;
    margin-bottom: 0.5em;
}

/* Education Section */
.education-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.education-card {
    background-color: var(--card-bg-color);
    padding: 25px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.education-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    padding: 10px;
    background-color: white;
    border-radius: 50%;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.education-info {
    text-align: center;
    width: 100%;
}

.education-info h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4em;
    font-weight: 600;
    color: var(--deep-navy);
    margin: 0.5em 0;
}

.education-year {
    display: inline-block;
    background-color: var(--hover-bg-color);
    color: var(--deep-navy);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9em;
    margin-top: 10px;
}

/* Contact Form */
form {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

input, textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    background-color: #f9f9f9;
    font-family: 'Poppins', sans-serif;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
}

textarea {
    min-height: 150px;
    resize: vertical;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--rich-teal);
    box-shadow: 0 0 0 3px rgba(255, 255, 95, 0.2);
    background-color: #fff;
}

button {
    align-self: center;
    background-color: var(--button-bg-color);
    color: var(--button-text-color);
    border: none;
    padding: 12px 30px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    font-size: 1em;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(255, 255, 95, 0.3);
}

button:hover {
    background-color: var(--button-hover-bg-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(193, 193, 71, 0.4);
}

button:active {
    transform: translateY(-1px);
}


.accent-text {
    color: var(--rich-teal);
    font-weight: 500;
}


.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: #fff;
    margin: 5px;
    transition: all 0.3s ease;
}

/* About Me Section */
#about p {
    margin-top: 0;
}

/* Media Queries */
@media (max-width: 768px) {
    .navbar {
        justify-content: space-between;
        padding: 0.5em 1.5em;
        padding-top: 1.5em;
        margin-top: -0.8em;
    }
    
    .navbar.smaller {
        width: auto;
        left: auto;
        right: 0;
        border-radius: 0 0 0 12px;
    }
    
    .burger {
        display: block;
        z-index: 2;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 70%;
        background-color: var(--navbar-bg-color);
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 1.5em;
        align-items: center;
        transform: translateX(100%);
        transition: transform 0.5s ease-in-out;
    }
    
    .nav-links.nav-active {
        transform: translateX(0);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    }
    
    .burger.toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .burger.toggle .line2 {
        opacity: 0;
    }
    
    .burger.toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero-container.scrolled {
        height: 40vh;
        min-height: 250px;
    }
    
    .hero-text h1 {
        font-size: clamp(1.8rem, 6vw, 2.5rem);
    }
    
    .hero-text p {
        font-size: clamp(0.9rem, 3vw, 1.2rem);
    }
    
    .avatar {
        width: clamp(70px, 20vw, 130px);
        height: clamp(70px, 20vw, 130px);
    }
    
    .hero-container.scrolled .avatar {
        width: clamp(50px, 15vw, 100px);
        height: clamp(50px, 15vw, 100px);
    }
    
    .hero-text h1 {
        font-size: 2.5em;
    }
    
    .hero-text p {
        font-size: 1.2em;
    }
    
    .avatar {
        width: 130px;
        height: 130px;
    }
    
    .section-card {
        width: 95%;
        padding: 25px;
    }
    
    .education-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-container.scrolled {
        height: 35vh;
        min-height: 200px;
    }
    
    .hero-text h1 {
        font-size: clamp(1.5rem, 7vw, 2rem);
    }
    
    .hero-text p {
        font-size: clamp(0.8rem, 4vw, 1rem);
    }
    
    .avatar {
        width: clamp(60px, 25vw, 110px);
        height: clamp(60px, 25vw, 110px);
        margin-bottom: 10px;
    }
    
    .hero-container.scrolled .avatar {
        width: clamp(40px, 20vw, 80px);
        height: clamp(40px, 20vw, 80px);
    }
    
    .hero-text h1 {
        font-size: 2em;
    }
    
    .hero-text p {
        font-size: 1em;
    }
    
    .avatar {
        width: 110px;
        height: 110px;
    }
    
    h1 {
        font-size: 1.8em;
    }
    
    .section-card {
        padding: 20px;
    }
    
    button {
        width: 100%;
    }
}


@media (max-height: 500px) and (orientation: landscape) {
    .hero-container {
        height: 100vh;
    }
    
    .hero-container.scrolled {
        height: 70vh;
        min-height: 250px;
    }
    
    .avatar {
        width: clamp(60px, 12vh, 100px);
        height: clamp(60px, 12vh, 100px);
        margin-bottom: 10px;
    }
    
    .hero-text h1 {
        font-size: clamp(1.5rem, 5vh, 2.5rem);
        margin: 0.2em 0;
    }
    
    .hero-text p {
        font-size: clamp(0.8rem, 2.5vh, 1.2rem);
    }
}