:root {
    --background-gradient: linear-gradient(135deg, #06041b, #2f2348, #10102b); 
    
    --card-background: rgba(30, 30, 30, 0.9); 
    --text-color: #e0e0e0; 
    --heading-color: #ffffff;
    --border-color: #444444;

    --primary-color: #848df1; 
    --primary-hover: #8a2be2;
    --secondary-color: #1a171f; 
    --secondary-hover: #9257ac;

    --button-gradient: linear-gradient(to right, #8f48f2, #848df1, #5aa3fc);

    --shadow-default: 0 5px 15px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.6);
    --shadow-image-float: 0 8px 20px rgba(0, 0, 0, 0.5);

    --font-family: 'Inter', sans-serif;
    --transition-speed: 0.3s ease;
}

/* --- Base Styles --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background: var(--background-gradient); 
    background-attachment: fixed;
    transition: color var(--transition-speed);
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.section-padding {
    padding: 80px 0;
}
h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    margin-bottom: 20px;
    font-weight: 600;
}
p {
    margin-bottom: 15px;
}
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed);
}
a:hover {
    color: var(--primary-hover);
}
ul {
    list-style: none;
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
    transition: background-color var(--transition-speed), color var(--transition-speed), transform 0.2s ease;
    border: none;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover {
    transform: translateY(-2px);
}
.btn-primary {
    background-image: var(--button-gradient); 
    color: #ffffff;
    border-radius: 30px;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #ffffff;
}
.btn-secondary {
    background-color: var(--secondary-color);
    color: #ffffff;
    border-radius: 30px;
}
.btn-secondary:hover {
    background-color: var(--secondary-color);
    color: #ffffff;
}
.btn-resume {
    background-color: transparent;
    background-image: var(--button-gradient); 
    color: #ffffff;
    padding: 8px 15px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-speed);
}
.btn-resume:hover {
    background-color: var(--primary-color);
    color: #ffffff;
}
.btn-project {
    padding: 8px 15px;
    font-size: 0.9rem;
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    margin-right: 10px;
}

.btn-project:hover {
    background-color: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
}

/* --- Header & Navigation --- */
.header {
    background-color: var(--card-background);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-left: auto;
}
.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color); 
    transition: all var(--transition-speed);
    margin-right: auto;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}
.nav-links li {
    list-style: none;
}
.nav-links a:not(.btn-resume) {
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--text-color);
    position: relative;
    padding-bottom: 5px;
    transition: font-weight 0.3s; 
}
.nav-links a:not(.btn-resume)::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    left: 0;
    bottom: 0;
    transition: width var(--transition-speed);
}
.nav-links a:not(.btn-resume):hover::after {
    width: 100%;
}
.nav-links a.active {
    font-weight: 600; 
}
.nav-links a.active::after {
    width: 100%;
}
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-speed);
    margin-left: 20px;
}
.theme-toggle:hover {
    color: var(--primary-color);
}

/* --- Hero Section --- */
.hero-section {
    min-height: calc(100vh - 80px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 100px 0;
}
.hero-name {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.2;
    color: var(--heading-color); 
}
.hero-tagline-1 {
    font-size: 1.7rem;
    font-weight: 500;
    background-image: var(--button-gradient);
    -webkit-background-clip: text;         
    background-clip: text;                 
    -webkit-text-fill-color: transparent;
    margin-bottom: 15px;
}
.hero-tagline-2 {
    font-size: 1.2rem;
    font-weight: 300;
    max-width: 600px;
    margin-bottom: 40px;
}
.hero-actions {
    display: flex;
    gap: 20px;
    margin-bottom: 80px;
}
.scroll-down {
    font-size: 2rem;
    color: var(--text-color);
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-15px);
    }
    60% {
        transform: translateY(-7px);
    }
}

/* --- Section Titles --- */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    color: var(--heading-color); 
}
.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 15px auto 0;
    border-radius: 2px;
}

/* --- About Section --- */
.about-section {
    padding-top: 60px;
    padding-bottom: 80px;
    text-align: center;
}
.about-tagline {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-color);
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    padding: 6px 18px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 20px;
    box-shadow: var(--shadow-default);
}
.about-content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 60px;
    align-items: flex-start;
    text-align: left;
    margin-bottom: 80px;
}
.about-text-column {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-color);
}
.about-quote {
    background-color: var(--card-background);
    border-left: 5px solid var(--primary-color);
    padding: 20px 25px;
    margin-top: 30px;
    border-radius: 8px;
    font-style: italic;
    color: var(--text-color);
    font-size: 1rem;
    box-shadow: var(--shadow-default);
}
.about-card-column {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.about-profile-card {
    background-color: transparent; 
    width: 250px; 
    height: 300px;
    border-radius: 12px; 
    box-shadow: none; 
    position: relative;
    overflow: hidden;
    transition: none; 
    display: flex;
    justify-content: center;
    align-items: center;
    border: 2px solid var(--primary-color); 
}
.about-profile-card h3,
.about-profile-card p {
    display: none;
}
.about-profile-card:hover {
    transform: none; 
    box-shadow: none;
}
.about-image-container {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}
.about-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center; 
    border-radius: 12px; 
}


/* --- About Features Grid --- */
.about-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.feature-card {
    background-color: var(--card-background);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow-default);
    text-align: center;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    border: 1px solid var(--border-color);
}
.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}
.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
    margin: 0 auto 20px;
    box-shadow: 0 5px 15px rgba(106, 13, 173, 0.3);
}
.feature-card h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--heading-color);
}
.feature-card p {
    font-size: 0.95rem;
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 0;
}


/* --- Skills Section --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.skill-card {
    background-color: var(--card-background);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-default);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}
.skill-card h3 {
    color: var(--heading-color);
    font-size: 1.6rem;
    margin-bottom: 25px;
}
.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.skill-tag {
    background-color: #3a3a3a;
    color: var(--text-color);
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}
.skill-tag:hover {
    background-color: var(--primary-color); 
    color: #ffffff;
}

/* --- Projects Section --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.project-card {
    background-color: var(--card-background);
    padding: 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-default);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    display: flex;
    flex-direction: column;
}
.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}
.project-card img {
    border-radius: 8px;
    margin-bottom: 20px;
    width: 100%;
    height: 200px; 
    object-fit: cover; 
}
.project-info {
    flex-grow: 1; 
    display: flex;
    flex-direction: column;
}
.project-info h3 {
    color: var(--heading-color);
    font-size: 1.5rem;
    margin-bottom: 10px;
}
.project-info p {
    color: var(--text-color);
    font-size: 1rem;
    margin-bottom: 15px;
    flex-grow: 1; 
}
.project-tech-tags {
    margin: 15px 0;
    flex-wrap: wrap;
    display: flex;
    gap: 8px; 
}
.tech-tag {
    background-color: #3a3a3a; 
    border: 1px solid #555555;
    color: var(--text-color);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    white-space: nowrap; 
}
.project-actions {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap; 
    gap: 10px; 
}
.design-projects-title {
    font-size: 1.8rem; 
    margin-top: 60px; 
}

/* --- Contact Section --- */
.contact-intro {
    text-align: center;
    margin-bottom: 40px;
    font-size: 1.1rem;
    color: var(--text-color);
}
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 40px;
}
.contact-form-card, .connect-card {
    background-color: var(--card-background);
    padding: 35px;
    border-radius: 12px;
    box-shadow: var(--shadow-default);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}
.contact-form-card:hover, .connect-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}
.contact-form-card h3, .connect-card h3 {
    color: var(--heading-color);
    font-size: 1.6rem;
    margin-bottom: 15px;
}
.contact-form-card p, .connect-card p {
    color: var(--text-color);
    margin-bottom: 25px;
}
.form-group {
    margin-bottom: 15px;
}
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: #3a3a3a;
    color: var(--text-color);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color var(--transition-speed), background-color var(--transition-speed);
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(106, 13, 173, 0.2);
}
.btn-send-message {
    width: auto;
    align-self: flex-start;
    padding: 12px 30px;
    font-size: 1.05rem;
}
.contact-links-list { 
    display: flex;
    flex-direction: column;
    gap: 15px; 
}
.contact-link-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    border-radius: 10px;
    background-color: var(--card-background); 
    border: 1px solid var(--border-color);
    transition: background-color var(--transition-speed), transform 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
    color: inherit; 
}
.contact-link-item:hover {
    background-color: var(--primary-color); 
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    color: #ffffff;
}
.contact-link-item:hover h4,
.contact-link-item:hover p {
    color: #ffffff; 
}
.icon-wrapper {
    width: 45px; 
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4rem; 
    color: #ffffff;
    flex-shrink: 0; 
}
.contact-link-item h4 {
    margin-bottom: 2px;
    font-size: 1.1rem;
    color: var(--heading-color);
}
.contact-link-item p {
    margin-bottom: 0;
    font-size: 0.9rem;
    color: var(--secondary-color);
}
.email-icon { background-color: #dc3545; } 
.linkedin-icon { background-color: #0077b5; } 
.github-icon { background-color: #333333; } 
.resume-icon { background-color: #6a0dad; } 

/* --- Footer --- */
.footer {
    background-color: var(--card-background);
    text-align: center;
    padding: 20px 0;
    margin-top: 60px;
    border-top: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.9rem;
}

/* --- Responsive Adjustments --- */
@media (max-width: 992px) {
    .hero-name {
        font-size: 3rem;
    }
    .hero-tagline-1 {
        font-size: 1.5rem;
    }
    .hero-tagline-2 {
        font-size: 1.1rem;
    }
    .section-title {
        font-size: 2rem;
    }
    .design-projects-title {
        font-size: 1.6rem;
    }
    .about-content-grid, .skills-grid, .projects-grid, .contact-grid {
        gap: 40px;
    }
}
@media (max-width: 768px) {
    .navbar {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    .nav-links {
        display: none;
    }
    .btn-resume {
        display: none;
    }
    .hero-section {
        padding: 80px 0;
    }
    .hero-name {
        font-size: 2.5rem;
    }
    .hero-tagline-1 {
        font-size: 1.3rem;
    }
    .hero-tagline-2 {
        font-size: 1rem;
    }
    .hero-actions {
        flex-direction: column;
        gap: 15px;
    }
    .about-content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .about-text-column,
    .about-card-column {
        text-align: center;
    }
    .about-profile-card {
        margin: 0 auto;
    }
    .about-profile-card h3, .about-profile-card p {
        text-align: center;
    }
    .about-quote {
        text-align: left;
    }
    .skills-grid, .projects-grid, .contact-grid, .about-features-grid {
        grid-template-columns: 1fr;
    }
    .section-padding {
        padding: 60px 0;
    }
    .section-title {
        margin-bottom: 40px;
    }
    .contact-form-card, .connect-card {
        padding: 30px;
    }
}
@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
    .theme-toggle {
        font-size: 1.2rem;
        margin-left: 10px;
    }
    .hero-name {
        font-size: 2rem;
    }
    .hero-tagline-1 {
        font-size: 1.1rem;
    }
    .hero-tagline-2 {
        font-size: 0.9rem;
    }
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    .about-profile-card {
        width: 180px;
        height: 220px;
    }
    .about-image-container {
        border-width: 0;
    }
    .about-image-container img {
        border-radius: 10px;
    }
    .about-profile-card h3, .about-profile-card p {
        display: none;
    }
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    .feature-card h4 {
        font-size: 1.2rem;
    }
    .about-features-grid {
        gap: 20px;
    }
    .skill-card, .project-card, .contact-form-card, .connect-card {
        padding: 25px;
    }
    .skill-card h3 {
        font-size: 1.4rem;
    }
    .skill-tag {
        font-size: 0.85rem;
        padding: 7px 12px;
    }
    .project-card img {
        height: 160px;
    }
    .tech-tag {
        font-size: 0.75rem;
        padding: 4px 8px;
    }
    .btn-project {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    .contact-link-item {
        padding: 12px;
    }
    .icon-wrapper {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    .contact-link-item h4 {
        font-size: 1rem;
    }
    .contact-link-item p {
        font-size: 0.8rem;
    }
}