/* Global Reset and Base Styles */
:root {
    --color-primary: #0077B6;
    --color-secondary: #00B4D8;
    --color-background: #0D1117;
    --color-surface: #161B22;
    --color-text: #E4E7EB;
    --color-text-secondary: #8B949E;
    --color-accent-dark: #30363D;
    --font-inter: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-inter);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

h1, h2, h3 {
    margin-bottom: 0.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.2rem;
}

/* Utility Classes */
.section {
    padding: 4rem 0;
    margin-top: 2rem;
    border-bottom: 1px solid var(--color-accent-dark);
}

.section-title {
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    margin: 10px auto 0;
    border-radius: 9999px;
}

.text-center {
    text-align: center;
}

.gradient-text {
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.w-full {
    width: 100%;
}

/* Header and Navigation */
.header {
    background-color: var(--color-surface);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text);
}

.nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav a {
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: color 0.3s ease;
}

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

/* Buttons */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    text-align: center;
    font-family: var(--font-inter);
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(90deg, #0077B6, #00B4D8);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    border: none;
    font-weight: 600;
    transition: 0.3s;
}

.btn-primary:hover {
    opacity: 0.85;
    transform: translateY(-3px);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid #00B4D8;
    color: #00B4D8;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    transition: 0.3s;
}

.btn-secondary:hover {
    background-color: #00B4D8;
    color: #0D1117;
    transform: translateY(-3px);
}


/* Hero Section */
.hero {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 5rem;
    position: relative;
    padding-bottom: 5rem;
}

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

.profile-img-container {
    padding: 5px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
    margin-bottom: 1.5rem;
    animation: pulse-glow 2s infinite alternate;
}

.profile-img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    background-color: var(--color-background);
    border: 5px solid var(--color-surface);
    display: block;
}

#hero-name {
    color: var(--color-secondary);
    font-weight: 500;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

#hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -1px;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.hero h2 {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
    font-weight: 400;
}

.rotating-text {
    font-weight: 700;
    color: var(--color-secondary);
    transition: all 0.5s ease;
    display: inline-block;
}

.hero-left {
    flex-direction: row;
    text-align: left;
    justify-content: center;
    align-items: center;
    gap: 3rem;
}

.hero-left .profile-img-container {
    margin-bottom: 0;
}

.hero-left .hero-text-block {
    max-width: 600px;
}


.hero-bio {
    max-width: 600px;
    margin-bottom: 3rem;
    color: var(--color-text-secondary);
    font-size: 1.1rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    cursor: pointer;
}

.scroll-box {
    width: 20px;
    height: 35px;
    border: 2px solid var(--color-text-secondary);
    border-radius: 10px;
    position: relative;
}

.scroll-dot {
    width: 4px;
    height: 4px;
    background-color: var(--color-text-secondary);
    border-radius: 50%;
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-animation 2s infinite;
}

/* Animations */
@keyframes pulse-glow {
    0% { box-shadow: 0 0 0 0 rgba(0, 180, 216, 0.4); }
    100% { box-shadow: 0 0 10px 10px rgba(0, 180, 216, 0); }
}

@keyframes scroll-animation {
    0% { top: 5px; opacity: 1; }
    50% { top: 18px; opacity: 0.5; }
    100% { top: 5px; opacity: 1; }
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    text-align: left;
}

.skill-card {
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--color-accent-dark);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s, box-shadow 0.3s;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 119, 182, 0.2);
}

.skill-card h3 {
    color: var(--color-primary);
    font-size: 1.25rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--color-accent-dark);
    padding-bottom: 0.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background-color: var(--color-accent-dark);
    color: var(--color-text);
    padding: 0.4rem 0.8rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.3s;
}

.skill-tag:hover {
    background-color: var(--color-secondary);
    color: var(--color-background);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--color-surface);
    padding: 2rem;
    border-radius: 0.75rem;
    border: 1px solid var(--color-accent-dark);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s, border-color 0.3s;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.project-card h3 {
    color: var(--color-text);
    font-size: 1.5rem;
    margin-bottom: 0;
}

.project-timeline {
    color: var(--color-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-link {
    color: var(--color-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s;
}

.project-link:hover {
    gap: 0.75rem;
}

/* Education Section */
.education-card {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-surface);
    padding: 2rem;
    border-radius: 0.75rem;
    border: 1px solid var(--color-accent-dark);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    text-align: left;
}

.education-card h3 {
    color: var(--color-text);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.education-card .university {
    color: var(--color-secondary);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.education-card .timeline {
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.education-card .details {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Certificates Section */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.cert-card {
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--color-accent-dark);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    text-align: left;
    transition: all 0.3s;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.cert-card:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-3px);
}

.cert-card svg {
    flex-shrink: 0;
    color: var(--color-secondary);
}

.cert-details {
    flex: 1;
}

.cert-details .name {
    color: var(--color-text);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.cert-details .source {
    color: var(--color-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid var(--color-accent-dark);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.footer p {
    margin: 0.5rem 0;
}

/* Modal Styling */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal-overlay.open {
    display: flex;
}

.modal-content {
    background-color: var(--color-surface);
    padding: 2rem;
    border-radius: 0.75rem;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
    transform: scale(0.9);
    transition: transform 0.3s ease-out;
}

.modal-overlay.open .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-accent-dark);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    color: var(--color-text);
    font-size: 1.5rem;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close-btn:hover {
    background-color: var(--color-accent-dark);
    color: var(--color-text);
}

.modal-body form div {
    margin-bottom: 1rem;
}

.modal-body label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.modal-body input[type="text"],
.modal-body input[type="email"],
.modal-body textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--color-background);
    border: 1px solid var(--color-accent-dark);
    color: var(--color-text);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: var(--font-inter);
    transition: border-color 0.3s;
}

.modal-body input:focus,
.modal-body textarea:focus {
    border-color: var(--color-primary);
    outline: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
    }

    #hero-title {
        font-size: 2.5rem;
    }

    .hero h2 {
        font-size: 1.2rem;
    }

    .hero-actions {
        flex-direction: column;
        gap: 0.75rem;
        width: 100%;
    }

    .hero-actions a,
    .hero-actions button {
        width: 100%;
        justify-content: center;
    }

    .skills-grid,
    .projects-grid,
    .certs-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 2rem;
    }
}