/* 
   Style.css for Kaleem-Ullah Sandhu's Portfolio
   Author: MUHAMMAD MIKRAN SANDHU
   Date: June 1, 2025
*/

/* ===== GLOBAL STYLES ===== */
:root {
    --primary-color: #1e3a8a;
    --secondary-color: #f59e0b;
    --light-bg: #f8fafc;
    --dark-bg: #0f172a;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #ffffff;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--light-bg);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 15px;
}

p {
    margin-bottom: 15px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    color: var(--primary-color);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: 'Montserrat', sans-serif;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
}

.btn-primary:hover {
    background-color: #15307a;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-light);
}

.btn-secondary:hover {
    background-color: #e08e00;
    color: var(--text-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 10px 0;
    background-color: rgba(255, 255, 255, 0.98);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    background-color: var(--light-bg);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.logo:hover {
    transform: rotate(10deg);
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu li {
    margin-left: 25px;
}

.nav-link {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
}

.nav-toggle span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

.nav-toggle span:nth-child(1) {
    top: 0;
}

.nav-toggle span:nth-child(2) {
    top: 8px;
}

.nav-toggle span:nth-child(3) {
    top: 16px;
}

.nav-toggle.active span:nth-child(1) {
    top: 8px;
    transform: rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    top: 8px;
    transform: rotate(-45deg);
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.9), rgba(15, 23, 42, 0.9)), url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1470&q=80') center/cover no-repeat;
    display: flex;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.1) 0%, rgba(15, 23, 42, 0) 70%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* ===== ABOUT SECTION ===== */
.about {
    background-color: var(--light-bg);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 300px;
    height: 300px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 6rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.image-placeholder::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) rotate(45deg);
    }
}

.about-text {
    flex: 2;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.contact-info {
    margin-top: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-item i {
    width: 30px;
    height: 30px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    background-color: var(--dark-bg);
    color: var(--text-light);
}

.experience .section-title {
    color: var(--text-light);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background-color: var(--secondary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 60px;
}

.timeline-dot {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: var(--secondary-color);
    border-radius: 50%;
    z-index: 1;
}

.timeline-content {
    position: relative;
    width: calc(50% - 40px);
    padding: 25px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

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

.timeline-item:nth-child(even) .timeline-content {
    left: calc(50% + 40px);
}

.timeline-content h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.timeline-date {
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.timeline-description ul {
    padding-left: 20px;
    margin-bottom: 15px;
}

.timeline-description ul li {
    position: relative;
    padding-left: 15px;
    margin-bottom: 8px;
}

.timeline-description ul li::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 0;
    width: 6px;
    height: 6px;
    background-color: var(--secondary-color);
    border-radius: 50%;
}

/* ===== EDUCATION SECTION ===== */
.education {
    background-color: var(--light-bg);
}

.education-items {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.education-item {
    display: flex;
    align-items: flex-start;
    background-color: #ffffff;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.education-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.education-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 20px;
    flex-shrink: 0;
}

.education-content {
    flex: 1;
}

.education-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.education-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.education-content p {
    margin-bottom: 5px;
}

.education-content em {
    color: var(--secondary-color);
    font-weight: 600;
}

/* ===== SKILLS SECTION ===== */
.skills {
    background-color: #ffffff;
}

.skills-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    justify-content: space-between;
}

.skills-category {
    flex: 1;
    min-width: 300px;
}

.skills-category h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: var(--primary-color);
    text-align: center;
}

.skill-bars {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.skill-item {
    width: 100%;
}

.skill-name {
    font-weight: 600;
    margin-bottom: 10px;
}

.skill-bar {
    height: 10px;
    background-color: #e2e8f0;
    border-radius: 5px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background-color: var(--secondary-color);
    border-radius: 5px;
    width: 0;
    transition: width 1.5s ease-in-out;
}

.software-skills {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 20px;
}

.software-skill {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.software-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

.software-skill:hover .software-icon {
    transform: translateY(-5px);
    background-color: var(--secondary-color);
}

/* ===== PROJECTS SECTION ===== */
.projects {
    background-color: var(--light-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background-color: #ffffff;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-icon {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
    transition: var(--transition);
}

.project-card:hover .project-icon {
    background-color: var(--secondary-color);
    transform: rotate(10deg);
}

.project-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* ===== CERTIFICATIONS SECTION ===== */
.certifications {
    background-color: #ffffff;
    overflow: hidden;
}

.certifications-slider {
    position: relative;
    overflow: hidden;
    padding: 20px 0;
}

.cert-container {
    display: flex;
    transition: transform 0.5s ease;
}

.cert-item {
    min-width: 300px;
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-right: 30px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.cert-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.cert-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-right: 15px;
    flex-shrink: 0;
}

.cert-content {
    flex: 1;
}

.cert-content h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.cert-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.cert-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.cert-prev,
.cert-next {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.cert-prev:hover,
.cert-next:hover {
    background-color: var(--secondary-color);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background-color: var(--light-bg);
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-card {
    background-color: #ffffff;
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-card-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.contact-form {
    flex: 2;
    min-width: 300px;
    background-color: #ffffff;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-family: 'Open Sans', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(30, 58, 138, 0.1);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--dark-bg);
    color: var(--text-light);
    padding: 50px 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

.footer-copyright {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===== WHATSAPP BUTTON ===== */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    z-index: 99;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    animation: none;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 100px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--text-light);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    z-index: 99;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

/* ===== ANIMATIONS ===== */
.animate-on-load {
    opacity: 0;
    transform: translateY(30px);
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.show {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE STYLES ===== */
@media screen and (max-width: 1200px) {
    .container {
        padding: 0 30px;
    }
}

@media screen and (max-width: 992px) {
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .about-content {
        flex-direction: column;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-dot {
        left: 30px;
    }
    
    .timeline-content {
        width: calc(100% - 80px);
        left: 80px !important;
    }
}

@media screen and (max-width: 768px) {
    section {
        padding: 80px 0;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .whatsapp-btn {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
    
    .back-to-top {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        bottom: 20px;
        right: 80px;
    }
}

@media screen and (max-width: 576px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.3rem;
    }
    
    .image-placeholder {
        width: 250px;
        height: 250px;
        font-size: 5rem;
    }
    
    .timeline-content {
        padding: 20px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .cert-item {
        min-width: 250px;
    }
}
.nonedc {
            text-decoration: none;
            color: white;
        }
        .nonedc:hover {
            text-decoration: none;
            color: #21fb8e;
        }