/* Google fonts & font family
==================================================*/

@import 'https://fonts.googleapis.com/css?family=Lato:100,100i,300,300i,400,400i,700,700i,900,900i|Open+Sans:300,300i,400,400i,600,600i,700,700i,800,800i|Playfair+Display:400,400i,700,700i,900,900i';

/*
font-family: 'Playfair Display', serif;
font-family: 'Lato', sans-serif;
font-family: 'Open Sans', sans-serif;
*/


/* VARIABLES CSS 
==================================================*/

/*===== Colors =====*/
:root {
  --background-color: #000;
  --foreground-color: rgb(238, 226, 226);
  --accent-color:#64ffda;
  --stars_color: white;
  --secondary-background-color: rgba(17, 17, 17, 0.85);
  --tooltip-text-color: white;
  --glow-color: rgba(100, 255, 218, 0.5);
  --card-border-color: #333;

}

/*=====Font and typography =====*/
:root {
  --heading-font: 'Playfair Display', serif;
  --body-font: 'Lato', sans-serif;

  --big-font-size: 3rem;
  --h1-font-size: 2rem;
  --h2-font-size: 1.5rem;
  --h3-font-size: 1rem;
  --normal-font-size: 0.938rem;
  --small-font-size: 0.813rem;
  --smaller-font-size: 0.75rem;

  /*=========== Font weight ==========*/

  --font-slim: 400;
  --font-medium: 500;
  --font-semi-bold: 600;
  --font-bold: 700;
}

/* adjusting the font size according to the screen size */
/* @media screen and (min-width: 768px) {
  :root {
    --big-font-size: 3rem;
    --h1-font-size: 2rem
    --h2-font-size: 1.8rem;
    --normal-font-size: 1rem;
    --small-font-size: 0.875rem;
  }
} */

/*===== Margins =====*/
:root {
    --mb-0-5: 0.25rem;
    --mb-1: 0.5rem;
    --mb-1-5: 0.75rem;
    --mb-2: 1rem;
    --mb-3: 1.5rem;
    --mb-4: 2rem;
    --mb-5: 2.5rem;
    --mb-6: 3rem;
    --mb-7: 4rem;
}

/*===== z index =====*/
:root {
    --z-back: 0;
    --z-normal: 1;
    --z-front: 10;
}

/* BASE 
==================================================*/

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

html {
  scroll-behavior: smooth;
}

img {
  max-width: 100%;
  height: auto;
  display: block; 
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

a, a:visited, a:hover, a:active {
    color: inherit;
    text-decoration: none;
  }

body {
    margin: 0;
    padding: 0;
    background: var(--background-color);
    color: var(--foreground-color);
    font-family: var(--body-font);
    overflow-x: hidden;
}

/* Custom scrollbar for webkit browsers */
/* width */
::-webkit-scrollbar {
    width: 7px;
  }
  
  /* Track */
  ::-webkit-scrollbar-track { 
    background: var(--background-color);
    border-radius: 5px;
  }
   
  /* Handle */
  ::-webkit-scrollbar-thumb {
    background: var(--accent-color); 
    border-radius: 5px;
  }
  
/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
  box-shadow: inset 0 0 5px var(--glow-color);
}

span {
    color: var(--accent-color);
}

/* Starry background animation
================================================== */

.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: var(--z-back);
}

.star {
    position: absolute;
    background: var(--stars_color);
    border-radius: 50%;
    animation: twinkle var(--duration) infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

/* Header
================================================== */
header {
    background-color: var(--secondary-background-color); 
    padding: var(--mb-0-4);
    position: fixed;
    width: 100%;
    top: 0;
    transition: transform 0.3s ease-in-out;
    z-index: var(--z-front);
}

.navbar-brand {
    color: var(--foreground-color);
    font-family: var(--heading-font);
    font-weight: var(--font-medium);
    transition: color 0.3s;
}

.navbar-brand:hover {
    color: var(--accent-color);
}
.nav-link {
    color: var(--foreground-color);
    font-weight: var(--font-medium);
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--accent-color);
}

.navbar-toggler .navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 32 32' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgb(238, 226, 226)' stroke-width='2.5' stroke-linecap='round' stroke-miterlimit='10' d='M4 8h24M4 16h24M4 24h24'/%3E%3C/svg%3E");
}

/* Home Section
================================================== */

.home-section {
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.image-section {
    position: relative;
}

.hero-image {
    max-height: 90vh; /* Makes image larger while preventing overflow */
    width: auto;
    transition: all 0.3s ease;
}

/* Styling for the content section */
.content-wrapper {
    width: 100%;
    padding: var(--mb-4);
}

/* Large screen styles */
@media (min-width: 992px) {
    .hero-image {
        transform: scale(1.2); /* Makes the image even larger on big screens */
    }
    
    .content-section {
        padding-left: var(--mb-4);
    }
}

/* Small screen styles */
@media (max-width: 991px) {
    .home-section {
        padding-top: 60px; /* Adjust based on your header height */
    }
    
    .image-section {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: -1;
    }
    
    .hero-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
        opacity: 0.3; /* More transparent on mobile for better text readability */
    }
    
    .content-wrapper {
        text-align: center;
        margin: 1rem auto;
    }
}

.intro-text {
    font-size: var(--h1-font-size);
    font-weight: var(--font-slim);
    margin-bottom: var(--mb-2);
    text-align: center;
}

.typewriter-container {
    display: inline-block;
}

.typewriter-text {
    font-family: var(--heading-font);
    /* font-style: italic; */
    font-size: var(--big-font-size);
    font-weight: bold;
    color: var(--accent-color);
    text-shadow: 0 0 10px var(--glow-color);
}

.cursor {
    display: inline-block;
    width: 3px;
    height: 42px;
    background-color: var(--foreground-color);
    margin-left: 5px;
    animation: blink 0.7s infinite;
    position: relative;
    top: 6px;
}

.inline-social-icons {
    display: flex;
    justify-content: center;
    gap: var(--mb-4);
    align-items: center;
    margin-top: var(--mb-4);
    color: var(--accent-color);
}

.social-icon {
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-icon:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

.social-icon svg {
    width: 32px;
    height: 32px;
}

.tooltip-text {
    visibility: hidden;
    background-color: var(--secondary-background-color);
    color: var(--tooltip-text-color);
    text-align: center;
    padding: 5px 10px;
    border-radius: 6px;
    position: absolute;
    z-index: var(--z-front);
    top: 125%;
    left: 50%;
    transform: translateX(-50%);
    font-size: var(--small-font-size);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s;
    border: 1px solid var(--glow-color);

}

.tooltip-text::after {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color:  transparent transparent var(--glow-color) transparent;
}

.social-icon:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* @media (max-width: 768px) {
    .intro-text {
        font-size: 1.5rem;
    }
    
    .typewriter-text {
        font-size: 2rem;
    }

    .cursor {
        height: 32px;
    }

    .inline-social-icons {
        flex-wrap: wrap;
        justify-content: center;
    }

    .svg-section img {
        max-width: 100%;
    }
} */

/* About Section 
==================================================*/

.about-section {
    padding: var(--mb-5) 0;
}

.about-heading {
    color: var(--accent-color);
    position: relative;
    padding: 10px;
    margin: var(--mb-2) auto var(--mb-2) auto;
}

.about-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 150px;
    height: 3px;
    background-color: var(--accent-color);
}

.about-text {
    color: var(--foreground-color);
    margin-bottom: var(--mb-4);
}

.interests-heading {
    color: var(--accent-color);
    margin: var(--mb-2) auto var(--mb-3) auto;
}

.interest-card {
    /* background: linear-gradient(145deg, #1a1a1a, #0d0d0d); */
    background-color: var(--secondary-background-color);
    border-radius: 15px;
    padding: clamp(1rem, 2vw, 1.5rem);
    border: 1px solid var(--card-border-color);
    transition: transform 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.interest-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.interest-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--glow-color);
}

.interest-card:hover::before {
    opacity: 1;
}

.interest-card-body {
    text-align: center;
    padding: var(--mb-2);
}

.interest-icon {
    color: var(--accent-color);
    fill: var(--accent-color);
    stroke: var(--accent-color);
    filter: drop-shadow(0 0 10px var(--accent-color));
    height: 64px;
    width: 64px;
    margin-bottom: var(--mb-1-5);
}

.interest-title {
    color: var(--foreground-color);
    margin-bottom: var(--mb-1-5);
}

.interest-description {
    color: var(--foreground-color);
    font-size: var(--mb-2);
}

/* Timeline Section
================================================== */

.timeline-body {
    display: flex;
    justify-self: center;
    justify-content: center;
    flex-direction: column;
}

.timeline-container {
    flex: 1;
    /* overflow-y: auto; */
    padding: 20px;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--accent-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    opacity: 0;
    transform: translateX(-100px);
    animation: slideIn 0.6s ease forwards;
}

.timeline-item:nth-child(even) {
    left: 50%;
    transform: translateX(100px);
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    top: 20px;
    transition: all 0.5s ease;
}

.timeline-item:nth-child(odd)::after {
    right: -10px;
}

.timeline-item:nth-child(even)::after {
    left: -10px;
}

.node-marker::after,
.timeline-item:hover::after {
    transform: rotate(45deg) scale(0.8);
    border-radius: 0;
    background: var(--accent-color);
    box-shadow: 0 0 15px var(--glow-color);
    z-index: 10;
}

.content {
    /* background: linear-gradient(145deg, #1a1a1a, #0d0d0d); */
    background-color: var(--secondary-background-color);
    border-radius: 15px;
    padding: clamp(1rem, 2vw, 1.5rem);
    border: 1px solid var(--card-border-color);
    transition: transform 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.content:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--glow-color);
}

.content:hover::before {
    opacity: 1;
}

.date {
    color: var(--accent-color);
    font-family: var(--body-font);
    font-size: 0.9em;
    margin-bottom: 5px;
}

.title {
    font-size: 1.2em;
    font-family: var(--heading-font);
    margin-bottom: 10px;
    color: var(--foreground-color);
}

.description {
    color: var(--foreground-color);
    font-family: var(--body-font);
    line-height: 1.6;
}

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.timeline-body-heading {
    text-align: center;
    color: var(--accent-color);
    font-family: var(--heading-font);
    font-size: var(--big-font-size);
    padding: var(--mb-5) 0 var(--mb-4) 0;
    margin-top: clamp(1rem, 3vw, 2rem);
}


@media screen and (max-width: 768px) {
    .timeline::after {
        left: 31px;
    }

    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 20px;
    }

    .timeline-item:nth-child(even) {
        left: 0;
    }

    .timeline-item::after {
        left: 21px;
    }

    .timeline-item:nth-child(even)::after {
        left: 21px;
    }
}

/* Skills Section
================================================== */

.skills-map {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--mb-6) var(--mb-2) var(--mb-6) var(--mb-2);
}

.skills-heading {
    text-align: center;
    color: var(--accent-color);
    font-size: var(--big-font-size);
    font-family: var(--heading-font);
    /* margin-top: clamp(1rem, 3vw, 2rem); */
    padding: var(--mb-4) 0 var(--mb-4) 0;
}

.skills-container {
    display: grid;
    gap: var(--mb-2);
    width: 100%;
}

@media (min-width: 550px) {
    .skills-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .skills-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (min-width: 1024px) {
    .skills-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .skills-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

.skill-category {
    /* background: linear-gradient(145deg, #1a1a1a, #0d0d0d); */
    background-color: var(--secondary-background-color);
    border-radius: 15px;
    padding: clamp(1rem, 2vw, 1.5rem);
    border: 1px solid var(--card-border-color);
    transition: transform 0.3s ease;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px var(--glow-color);
}

.skill-category:hover::before {
    opacity: 1;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.category-icon {
    background: var(--secondary_background-color);
    padding: clamp(0.5rem, 1.5vw, 0.8rem);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px var(--glow-color);
}

.category-icon svg {
    color: var(--accent-color);
    width: clamp(16px, 2vw, 24px);
    height: clamp(16px, 2vw, 24px);
}

.category-title {
    color: var(--accent-color);
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    font-weight: bold;
    word-wrap: break-word;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-item {
    background: linear-gradient(145deg, #2a2a2a, #1d1d1d);
    padding: 0.6rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid #444;
    transition: all 0.3s ease;
    flex: 1 1 calc(50% - 0.4rem);
    min-width: max-content;
}

@media (max-width: 400px) {
    .skill-item {
        flex: 1 1 100%;
    }
}

.skill-item:hover {
    transform: scale(1.05);
    background: linear-gradient(145deg, #3a3a3a, #2d2d2d);
    box-shadow: 0 5px 15px var(--glow-color);
    border-color: var(--primary-color);
}

.skill-icon {
    color: var(--accent-color);
    width: clamp(14px, 1.5vw, 20px);
    height: clamp(14px, 1.5vw, 20px);
}

.skill-name {
    font-size: clamp(0.8rem, 1.2vw, 0.9rem);
    color: var(--tooltip-text-color);
    white-space: nowrap;
}

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

.skill-category {
    animation: fadeIn 0.5s ease-out forwards;
}

@keyframes glow {
    0% { box-shadow: 0 0 5px var(--glow-color); }
    50% { box-shadow: 0 0 20px var(--glow-color); }
    100% { box-shadow: 0 0 5px var(--glow-color); }
}

.category-icon {
    animation: glow 2s infinite;
}

/*Projects Section
================================================== */
.project-card {
    background: var(--background-color);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image {
    transform: scale(1.05);
}

.tech-badge {
    background: #333;
    color: #fff;
    border-radius: 20px;
    padding: 0.25rem 0.75rem;
    margin: 0.25rem;
    display: inline-block;
    font-size: 0.875rem;
}

.project-link {
    color: #fff;
    border: 1px solid #fff;
    border-radius: 5px;
    padding: 0.5rem 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.project-link:hover {
    background: #fff;
    color: #000;
}

.loading-spinner {
    width: 3rem;
    height: 3rem;
}

/* contact Section
================================================== */
.contact-section {
    padding: var(--mb-5);
    text-align: center;
    margin: var(--mb-7) 0 var(--mb-5) 0;
}

.contact_info{
    justify-content: center;
    align-items: center;
    border-radius: 10px;
}
.contact-section{
    font-family: var(--body-font);
    font-size: var(--h2-font-size);
    margin-bottom: var(--mb-2);
    text-align: center; /* Center the text */
}

.contact-section #END_Heading{
    font-family: var(--heading-font);
    font-size: var(--big-font-size);
}

.contact-section #contact_links{
    font-family: var(--heading-font);
    font-size: var(--h2-font-size);
}

/* footer Section
================================================== */

.footer_author, .footer_copyright {
    font-family: var(--body-font);
    color: var(--foreground-color);
}

.footer_social_icons {
    color: var(--accent-color);
}