@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --primary-color: #5BAA86;
    /* Aesthetic green/teal */
    --primary-hover: #4a8f6f;
    --bg-main: #121212;
    /* Deep dark bg */
    --bg-card: #1E1E1E;
    /* Card dark bg */
    --text-main: #F4F4F4;
    /* Light text */
    --text-muted: #A0A0A0;
    /* Muted text */
    --border-color: #2D2D2D;
    /* Subtle borders */
    --input-bg: #252525;
    /* Form input bg */

    /* Specific Brands */
    --github-color: #333;
    --linkedin-color: #0e76a8;
    --x-color: #ffffff;
    --instagram-color: #e1306c;

    /* Typography */
    --font-main: 'Poppins', sans-serif;
    --h1-size: 2.2rem;
    --h2-size: 1.8rem;
    --p-size: 0.95rem;

    /* Spacing & Layout */
    --nav-width: 90px;
    --card-width: 380px;
    --left-gap: 30px;
    --right-gap: 30px;
    --main-padding: 40px;

    /* Radius & Effects */
    --radius-sm: 8px;
    --radius-md: 15px;
    --radius-circle: 50%;
    --transition-speed: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.5);
}

/* Light Theme Overrides */
:root.light-theme {
    --bg-main: #F4F6F8;
    --bg-card: #FFFFFF;
    --text-main: #121212;
    --text-muted: #555555;
    --border-color: #E2E8F0;
    --input-bg: #F8FAFC;
    --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.08);
    --x-color: #000000;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    font-size: var(--p-size);
    overflow-x: hidden;
}

@media (min-width: 992px) {
    body {
        height: 100vh;
        overflow: hidden;
    }
}

/* Let background color transition smoothly */
body,
.nav-menu,
.profile-card,
.content-section,
.blog-card,
.contact-info-icon,
.form-control,
.dot {
    transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed), box-shadow var(--transition-speed);
}

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

ul {
    list-style: none;
}

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

/* Utilities */
.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 30px;
    border: 2px solid transparent;
    font-family: var(--font-main);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    font-size: 0.95rem;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 5px 15px rgba(91, 170, 134, 0.3);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--primary-color);
    color: var(--text-main);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.section-title {
    font-size: var(--h1-size);
    font-weight: 600;
    margin-bottom: 40px;
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
}

/* 1. Fixed Left Nav */
.nav-menu {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--nav-width);
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 0;
    z-index: 100;
}

.nav-hamburger {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 1.8rem;
    cursor: pointer;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 35px;
    width: 100%;
    align-items: center;
    margin-top: 40px;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    gap: 8px;
}

.nav-item i {
    font-size: 1.5rem;
}

.nav-item:hover,
.nav-item.active {
    color: var(--primary-color);
}

/* 2. Fixed Profile Card */
.profile-card {
    position: fixed;
    left: calc(var(--nav-width) + var(--left-gap));
    top: 50%;
    transform: translateY(-50%);
    width: var(--card-width);
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: calc(var(--main-padding) + 10px) var(--main-padding);
    text-align: center;
    box-shadow: var(--shadow-soft);
    z-index: 50;
    max-height: 90vh;
    overflow-y: auto;
    scrollbar-width: none;
}

.profile-card::-webkit-scrollbar {
    display: none;
}

.profile-img-box {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
    border-radius: var(--radius-circle);
    border: 3px solid var(--primary-color);
    overflow: hidden;
    padding: 4px;
}

.profile-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-circle);
}

.profile-name {
    font-size: var(--h2-size);
    font-weight: 600;
    margin-bottom: 5px;
}

.profile-title {
    display: inline-block;
    background-color: var(--bg-main);
    padding: 5px 20px;
    border-radius: 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 25px;
    font-weight: 500;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 35px;
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: var(--radius-circle);
    background-color: var(--bg-main);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    color: var(--text-muted);
    transition: var(--transition-speed);
    border: 1px solid transparent;
}

.social-icon:hover {
    color: #fff;
    border-color: currentColor;
}

.social-icon.github:hover {
    background-color: var(--github-color);
    border-color: var(--github-color);
}

.social-icon.linkedin:hover {
    background-color: var(--linkedin-color);
    border-color: var(--linkedin-color);
}

.social-icon.x:hover {
    background-color: var(--x-color);
    border-color: var(--x-color);
    color: var(--bg-main);
}

.social-icon.instagram:hover {
    background-color: var(--instagram-color);
    border-color: var(--instagram-color);
}

.profile-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.profile-actions .btn {
    width: 100%;
}

/* 3. Main Content */
.main-content {
    margin-left: calc(var(--nav-width) + var(--left-gap) + var(--card-width) + var(--right-gap));
    padding: var(--main-padding) var(--main-padding) var(--main-padding) 0;
    height: 100vh;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-main);
}

.main-content::-webkit-scrollbar {
    width: 8px;
}

.main-content::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 4px;
}

.content-section {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 50px;
    box-shadow: var(--shadow-soft);
    margin-bottom: 30px;
    animation: fadeIn 0.5s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* About */
.about-text {
    color: var(--text-muted);
    margin-bottom: 40px;
    font-size: 1rem;
    line-height: 1.8;
}

.about-text p {
    margin-bottom: 15px;
}

.info-row {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.info-col {
    flex: 1;
    min-width: 250px;
}

.info-list {
    list-style: none;
}

.info-list li {
    display: flex;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.info-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.info-title {
    min-width: 120px;
    color: var(--primary-color);
    font-weight: 500;
}

.info-value {
    color: var(--text-main);
    font-weight: 500;
}

/* Resume Timeline */
.timeline {
    position: relative;
    padding-left: 20px;
    border-left: 2px solid var(--border-color);
    margin-bottom: 40px;
}

.timeline-item {
    position: relative;
    margin-bottom: 35px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -27px;
    top: 5px;
    width: 12px;
    height: 12px;
    background-color: var(--primary-color);
    border-radius: var(--radius-circle);
    border: 3px solid var(--bg-card);
}

.timeline-date {
    display: inline-block;
    background: var(--bg-main);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.timeline-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-main);
}

.timeline-company {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.timeline-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Skills Section */
.skills-container {
    margin-top: 50px;
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-bottom: 50px;
}

.skills-heading {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skills-heading i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.skill-bar-wrapper {
    margin-bottom: 25px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.95rem;
    font-weight: 500;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background-color: var(--bg-main);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
    position: relative;
}

.skill-dots-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.skill-dots-title {
    font-size: 0.95rem;
    font-weight: 500;
}

.skill-dots {
    display: flex;
    gap: 6px;
}

.dot {
    width: 14px;
    height: 14px;
    border-radius: var(--radius-circle);
    background-color: var(--bg-main);
    border: 2px solid var(--border-color);
}

.dot.filled {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.knowledge-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.knowledge-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.knowledge-item i {
    color: var(--primary-color);
    font-size: 1.3rem;
}

/* Works */
.portfolio-filters {
    display: flex;
    gap: 20px;
    justify-content: flex-end;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-family: var(--font-main);
    font-weight: 500;
    cursor: pointer;
    transition: color var(--transition-speed);
    padding-bottom: 5px;
}

.filter-btn.mixitup-control-active,
.filter-btn:hover {
    color: var(--primary-color);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: block;
}

.portfolio-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
    border-radius: var(--radius-sm);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(30, 30, 30, 0.85);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: all 0.4s ease;
    backdrop-filter: blur(2px);
}

.portfolio-item:hover img {
    transform: scale(1.08);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-title {
    color: #fff;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    transform: translateY(20px);
    transition: transform 0.4s ease;
    text-align: center;
}

.portfolio-item:hover .portfolio-title {
    transform: translateY(0);
}

.portfolio-icon {
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    border-radius: var(--radius-circle);
    color: #fff;
    font-size: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    transform: translateY(-20px);
    transition: transform 0.4s ease;
}

.portfolio-item:hover .portfolio-icon {
    transform: translateY(0);
}

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.blog-card {
    background-color: var(--bg-main);
    border-radius: var(--radius-sm);
    overflow: hidden;
    display: block;
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

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

.blog-card-img-wrap {
    overflow: hidden;
    display: block;
}

.blog-card:hover img {
    transform: scale(1.05);
}

.blog-card-content {
    padding: 25px;
}

.blog-date {
    display: inline-block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 10px;
    background: var(--bg-card);
    padding: 4px 10px;
    border-radius: 4px;
}

.blog-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-main);
    display: block;
    line-height: 1.4;
}

.blog-card:hover .blog-title {
    color: var(--primary-color);
}

.blog-excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Contact */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
}

.map-container {
    width: 100%;
    height: 250px;
    background: var(--bg-main);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    font-size: 2rem;
    border: 1px solid var(--border-color);
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-info-item {
    display: flex;
    gap: 20px;
    align-items: center;
}

.contact-info-icon {
    width: 60px;
    height: 60px;
    background-color: var(--bg-main);
    border-radius: var(--radius-circle);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
    font-size: 1.8rem;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
}

.contact-info-text h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-main);
}

.contact-info-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.contact-form .form-group {
    margin-bottom: 25px;
}

.contact-form .form-control {
    width: 100%;
    padding: 16px 20px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-family: var(--font-main);
    font-size: 0.95rem;
    transition: border-color var(--transition-speed);
}

.contact-form .form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: var(--radius-sm);
    display: none;
    font-weight: 500;
}

.form-message.success {
    background-color: rgba(91, 170, 134, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    display: block;
}

.form-message.error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
    color: #ef4444;
    display: block;
}

/* Responsive Medium */
@media (max-width: 1200px) {
    .main-content {
        margin-left: calc(var(--nav-width) + var(--left-gap) + 320px + 20px);
    }

    .profile-card {
        width: 320px;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
}

/* Responsive Tablet & Mobile */
@media (max-width: 991px) {
    body {
        display: block;
    }

    .app-container {
        padding: 0;
    }

    .nav-menu {
        position: fixed;
        right: auto;
        top: auto;
        left: 50%;
        bottom: 25px;
        transform: translateX(-50%);
        width: auto;
        height: auto;
        padding: 0;
        border: none;
        background: transparent;
        flex-direction: row;
        justify-content: center;
        z-index: 100;
    }

    .nav-hamburger {
        display: none;
    }

    .nav-links {
        display: flex;
        position: relative;
        top: 0;
        left: auto;
        width: auto;
        background: var(--bg-card);
        padding: 10px 15px;
        border: 1px solid var(--border-color);
        border-radius: 40px;
        flex-direction: row;
        gap: 15px;
        box-shadow: var(--shadow-soft);
        margin-top: 0;
    }

    .nav-item {
        flex-direction: row;
        padding: 0;
        justify-content: center;
        align-items: center;
        width: 45px;
        height: 45px;
        border-radius: var(--radius-circle);
        background: var(--bg-main);
        font-size: 0;
        gap: 0;
    }

    .nav-item i {
        margin-bottom: 0;
        width: auto;
        text-align: center;
        font-size: 1.3rem;
        color: var(--text-muted);
    }

    .nav-item.active,
    .nav-item:hover {
        background: var(--primary-color);
    }

    .nav-item.active i,
    .nav-item:hover i {
        color: #fff;
    }

    .profile-card {
        position: relative;
        left: 0;
        top: 0;
        transform: none;
        width: auto;
        max-width: none;
        margin: 30px 15px;
        padding: 30px 20px;
        border-radius: var(--radius-md);
        max-height: none;
        overflow: visible;
        box-shadow: none;
        border: 1px solid var(--border-color);
    }

    .main-content {
        margin: 0 15px 120px 15px;
        padding: 0;
        height: auto;
        overflow: visible;
    }

    .content-section {
        padding: 30px 20px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .knowledge-list {
        grid-template-columns: 1fr;
    }

    .portfolio-filters {
        justify-content: center;
    }
}