/* Version 1.3 */
/* Styles for all elements in index.html */

/* Basic reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Smooth scrolling and scroll snapping */
html {
    scroll-behavior: smooth;
    /* Smooth scroll on nav clicks */
    scroll-snap-type: y mandatory;
    /* Enable scroll snapping */
    font-size: 22px;
}

/* Body Styles */
body {
    font-family: Arial, sans-serif;
    overflow-y: scroll;
}

h1,
h2 {
    font-family: 'Inter', Arial, sans-serif;
    font-weight: 600;
}

h1 {
    font-size: 2.2rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 1.4rem;
    letter-spacing: -0.3px;
}

/* Section Styles */
section {
    min-height: 100vh;
    /* Full screen height */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    scroll-snap-align: start;
    /* Each section snaps to start */
    margin: 0 auto;
    padding: 90px 60px;
    scroll-margin-top: 80px;
    /* Ensure sections don't hide under the fixed header */
}

/* Header Styles */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: #fff;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* Section headings */
h2 {
    position: relative;
    display: inline-block;
    text-align: center;
    margin-bottom: 30px;
    font-size: 2.0rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* Underline effect for section headings */
h2::after {
    content: "";
    display: block;
    width: 60px;
    height: 3px;
    background-color: #0077ff;
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Logo Styles */
.logo svg {
    height: 60px;
    /* adjust logo size */
    width: auto;
    display: block;
    /* removes inline spacing */
    margin-right: 20px;
    /* space between logo and nav items */
}

/* Navigation Styles */
nav {
    display: flex;
    align-items: center;
    /* vertically center logo + nav */
    padding: 5px 15px;
}

/* Nav list styles */
nav ul {
    display: flex;
    list-style: none;
    justify-content: flex-end;
    /* keeps nav items on the right */
    padding: 0;
    margin: 0;
    flex: 1;
    /* take remaining space after logo */
}

/* Nav item styles */
nav ul li {
    margin: 0 15px;
}

/* Nav link styles */
nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: bold;
    font-size: 1.05rem;
    position: relative;
    display: inline-block;
    transition: transform 0.2s ease, color 0.2s ease;
}

/* Pop-out hover effect */
nav ul li a:hover {
    transform: scale(1.15);
    /* Grows slightly */
    color: #0077ff;
    /* Changes color */
}

/* Add underline animation */
nav ul li a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0;
    height: 2px;
    background-color: #0077ff;
    transition: width 0.3s ease;
}

/* Expand underline on hover */
nav ul li a:hover::after {
    width: 100%;
}

/* Active Link Highlight for nav */
nav ul li a.active {
    color: #0077ff;
}

nav ul li a.active::after {
    width: 100%;
    background-color: #0077ff;
}

/* Hero Section (About) */
#about {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 50px;
    width: 100%;
}

/* Hero Text Styles */
.hero-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Hero Text Content */
.hero-text h1 {
    font-size: 3rem;
    color: #222;
    margin-bottom: 20px;
}

/* Blue accent underline under hero name */
.hero-name {
    position: relative;
    display: inline-block;
    font-size: 3rem;
    color: #222;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-name::after {
    content: "";
    display: block;
    width: 80px;
    height: 3px;
    background-color: #0077ff;
    margin: 10px auto 0;
    border-radius: 2px;
}

/* Hero contact icons */
.hero-contact {
    display: flex;
    justify-content: center;
    /* center horizontally */
    gap: 20px;
    /* space between icons */
    margin-bottom: 1px;
    /* spacing below */
}

/* Hero Paragraph */
.hero-text p {
    font-size: 1.1rem;
    color: #555;
    margin-bottom: 30px;
    max-width: 600px;
    text-align: center;
}

/* Hero Buttons */
.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

/* Button Styles */
.hero-buttons a {
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s ease;
}

/* Primary Button */
.btn-primary {
    background-color: #0077ff;
    color: #fff;
}

/* Primary Button Hover */
.btn-primary:hover {
    background-color: #005fcc;
    transform: scale(1.05);
}

/* Secondary Button */
.btn-secondary {
    border: 2px solid #0077ff;
    color: #0077ff;
}

/* Secondary Button Hover */
.btn-secondary:hover {
    background-color: #0077ff;
    color: #fff;
    transform: scale(1.05);
}

/* Hero Image Styles */
.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Hero Image and Pop-out hover effect for hero image on hover */
.hero-image img {
    width: clamp(300px, 35vw, 450px);
    height: auto;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

/* Hover effect */
.hero-image img:hover {
    transform: scale(1.07);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    margin-right: 10px;
    margin-left: 10px;
}

/* Hamburger bars */
.hamburger div {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 4px 0;
    transition: 0.3s;
}

/* Hamburger animation to X logo */
.hamburger.open div:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

/* Hamburger middle bar */
.hamburger.open div:nth-child(2) {
    opacity: 0;
}

/* Hamburger bottom bar */
.hamburger.open div:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Responsive adjustments for smaller screens */
@media (max-width: 900px) {
    html {
        scroll-behavior: smooth;
        scroll-snap-type: none;
    }

    section {
        scroll-snap-align: none;
    }
    
    #about {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        align-items: center;
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    nav {
        position: relative;
    }

    .hamburger {
        display: flex;
    }

    nav ul {
        position: absolute;
        top: 60px;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        align-items: flex-start;
        width: 200px;
        padding: 15px 0;
        display: none;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
    }

    nav ul.active {
        display: flex;
    }

    nav ul li {
        width: 100%;
        margin: 10px 0;
        padding: 0 20px;
    }

    nav ul li a {
        width: 100%;
        display: block;
    }
}

/* Override global section styles for content sections */
#experience,
#projects {
    min-height: 80vh;
    /* fills ~80% of the screen */
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 40px 20px 60px 20px;
    /* even top and bottom space */
}

/* Adjust spacing specifically for Education, Certifications, and Contact sections */
#education,
#certifications,
#contact {
    min-height: calc(100vh - 120px);
    /* responsive section height */
}

/* Contact section alignment */
#contact {
    min-height: auto;
    padding-top: 90px;
    padding-bottom: 90px;
}

/* Education Section - Second Heading Style for University names */
#education .card h3:nth-of-type(2) {
    font-size: 1.05rem;
    /* slightly smaller than the main degree */
    font-weight: normal;
    color: #333;
    margin-top: -5px;
    /* pulls it closer to the degree line */
}

/* Cards Container */
.cards-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    width: 100%;
    padding: 20px 10px;
}

/* Make Certifications section have 3 cards per line */
#certifications .cards-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 1100px) {
    #certifications .cards-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 650px) {
    #certifications .cards-container {
        grid-template-columns: 1fr;
    }
}

/* Individual Card Styles */
.card {
    flex: 1 1 350px;
    max-width: 450px;
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

/* Card hover effect */
.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

/* Horizontal layout for certifications cards */
.card-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Text section inside cards */
.card-text {
    flex: 1;
    padding-right: 10px;
}

/* Spacing between text elements inside cards */
.card h3,
.card p,
.card ul {
    margin-bottom: 10px;
    /* adds even breathing room between sections */
}

/* Bullet list styles inside cards */
.card ul {
    margin-left: 20px;
    /* indent bullet list */
}

/* Space between bullet points */
.card li:not(:last-child) {
    margin-bottom: 6px;
}

/* Logo section inside cards */
.cert-logo img {
    width: 60px;
    height: auto;
    object-fit: contain;
}

/* Certification note text */
.cert-note {
    font-size: 0.85rem;
    color: #555;
    margin-top: 5px;
    font-style: italic;
}

/* Background colors for alternating sections */
#about {
    background-color: #fafafa;
}

#certifications {
    background-color: #fff;
}

#projects {
    background-color: #fafafa;
}

#experience {
    background-color: #fff;
}

#education {
    background-color: #fafafa;
}

/* Contact Cards */
.contact-card {
    text-align: center;
}

/* Contact Card Headings */
.contact-card h3 {
    margin-bottom: 10px;
    color: #000;
    font-weight: bold;
}

/* Icon container styles */
.icon-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 15px 0;
}

/* SVG icon styles */
.icon-container svg {
    width: 45px;
    height: 45px;
    color: #0077ff;
    /* ONE color source */
    fill: currentColor;
    /* SVG obeys text color */
    transition: transform 0.3s ease;
}

/* LinkedIn special handling */
.linkedin-icon .icon-bg {
    fill: currentColor;
    /* blue circle */
}

.linkedin-icon .icon-fg {
    fill: #ffffff;
    /* white "IN" */
}

/* Icon hover effect */
.icon-container svg:hover {
    transform: scale(1.15);
}

/* Contact link styles */
.contact-card a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
}

/* Contact link hover effect */
.contact-card a:hover {
    color: #0077ff;
}

/* Footer styles */
#footer {
    background-color: #f1f1f1;
    text-align: center;
    padding: 50px 20px;
    scroll-snap-align: start;
    min-height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Footer paragraph styles */
#footer p {
    margin: 8px 0;
    color: #333;
}

/* Back to Top Button Styles */
#back-to-top {
    margin: 15px 0;
    padding: 8px 18px;
    border: none;
    border-radius: 5px;
    background-color: #0077ff;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

/* Back to Top Button Hover */
#back-to-top:hover {
    background-color: #005fcc;
}

/* Global link style for external and email links */
a[target="_blank"],
.contact-card a[href^="mailto:"] {
    color: #0077ff;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.3s ease;
}

a[target="_blank"]:hover,
.contact-card a[href^="mailto:"]:hover {
    color: #005fcc;
    text-decoration: underline;
}