/* ===== GLOBAL RESPONSIVE RULES ===== */

html {
    font-size: 100%;
}

@media (max-width: 1200px) {
    html { font-size: 95%; }
}

@media (max-width: 992px) {
    html { font-size: 90%; }
}

@media (max-width: 768px) {
    html { font-size: 85%; }
}

@media (max-width: 480px) {
    html { font-size: 80%; }
}

/* ===== HERO RESPONSIVE ===== */

.hero {
    padding: 6rem 1.5rem 2rem;
    height: auto;
    min-height: 100vh;
}

.profile-image {
    width: 160px;
    height: 160px;
}

.hero-content h1 {
    font-size: clamp(2rem, 6vw, 3.5rem);
}

.hero-content p {
    font-size: clamp(1rem, 3.8vw, 1.4rem);
}

.navbar {
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: thin; /* Firefox */
    flex-shrink: 0;
}

.nav-links {
    flex-wrap: nowrap;
    flex-direction: row;
}

.navbar::-webkit-scrollbar {
    height: 6px;
}

.navbar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

/* ===== NAVIGATION RESPONSIVE ===== */

nav ul {
    flex-wrap: wrap;
    gap: 1.2rem;
    padding: 0 1rem;
}

@media (max-width: 600px) {
    nav ul {
        flex-direction: row; /* keep links in one line */
        justify-content: space-around;
        flex-wrap: nowrap;
        overflow-x: auto;
        white-space: nowrap;
    }
}

/* ===== ABOUT SECTION ===== */

.about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
}

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

/* ===== EXPERIENCE TIMELINE ===== */

@media (max-width: 768px) {
    .timeline {
        padding-left: 1rem;
    }

    .timeline::before {
        left: -0.2rem;
    }

    .timeline-item::before {
        left: -1.3rem;
    }
}

/* ===== PROJECTS ===== */

.projects-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

/* ===== EDUCATION GRID ===== */

.education-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* ===== SKILL LOGO CAROUSEL ===== */

.skill-logo-carousel {
    min-width: 80px;
    height: 80px;
}

.skill-logo-carousel img {
    width: 50px;
    height: 50px;
}

/* For very small screens */
@media (max-width: 480px) {
    .skill-logo-carousel {
        min-width: 65px;
        height: 65px;
    }
    .skill-logo-carousel img {
        width: 40px;
        height: 40px;
    }
}

/* ===== COLLAB LOGOS ===== */

.collaboration-logos {
    gap: 1.5rem;
    padding: 1.5rem;
}

.logo-item img {
    width: clamp(80px, 20vw, 130px);
    height: auto;
}

/* ===== CONTACT ===== */

.contact-info {
    gap: 1rem;
    flex-direction: column;
}

/* ===== CONTAINER ===== */

.container {
    padding: 3rem 1.5rem;
}

/* ===== SECTION HEADER ===== */

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
}

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

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

:root {
    --primary: #0a192f;
    --secondary: #1e2a3a;
    --accent: #d4a574;
    --accent-hover: #e6b887;
    --text: #8892b0;
    --text-light: #ccd6f6;
    --bg-light: #112240;
    --neutral: #233554;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--primary);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--neutral) 100%);
    color: var(--text-light);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(212, 165, 116, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    margin: 0 auto 2rem;
    border: 2px solid #112053; /* darker blue border */
    box-shadow: 0 0 35px rgba(67, 100, 210, 0.5); /* blue glow */
    overflow: hidden;
    background: var(--neutral);
    display: flex;
    align-items: center;
    justify-content: center;
}


.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
    color: var(--text-light);
}

#typed-name {
    font-family: 'Roboto', sans-serif !important;
    font-weight: 700;
    font-size: 3.5rem;
    color: var(--text-light);
}

.location {
    font-size: 1.1rem;
    color: var(--accent);
    margin-top: -0.5rem;
    margin-bottom: 1.5rem;
}


.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s backwards;
    color: var(--accent);
}

.hero-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s backwards;
}

.btn {
    padding: 0.8rem 2rem;
    border: 2px solid var(--accent);
    background: transparent;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s;
    cursor: pointer;
}

.btn:hover {
    background: rgba(212, 165, 116, 0.1);
    box-shadow: 0 0 20px rgba(212, 165, 116, 0.3);
    transform: translateY(-2px);
}

/* Skills Logos Section - Infinite Carousel */
#skills-logos {
    background: var(--primary);
    overflow: hidden;
    padding: 4rem 0;
}

.carousel-row {
    overflow: hidden;
    margin: 2rem 0;
    position: relative;
    -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
    mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.carousel-track {
    display: flex;
    gap: 3rem;
    width: max-content;
    will-change: transform;
}


.carousel-track[data-direction="left"] {
    animation: scrollLeft 30s linear infinite;
}

.carousel-track[data-direction="right"] {
    animation: scrollRight 30s linear infinite;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes scrollRight {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

.skill-logo-carousel {
    min-width: 100px;
    height: 100px;
    background: var(--bg-light);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid var(--neutral);
    position: relative;
    flex-shrink: 0;
}

.skill-logo-carousel:hover {
    transform: none; /* stops zoom */
    box-shadow: 0 0 10px rgba(212, 165, 116, 0.5);
    border-color: var(--accent);
}

.skill-logo-carousel img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    filter: brightness(0.9);
    transition: filter 0.3s;
}

.skill-logo-carousel:hover img {
    filter: brightness(1.2);
}

.skill-logo-carousel .tooltip {
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--primary);
    padding: 0.3rem 0.8rem;
    border-radius: 5px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 20;
}

.skill-logo-carousel:hover .tooltip {
    opacity: 1;
}

/* Pause animation on hover */
.carousel-row:hover .carousel-track {
    animation-play-state: paused;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.section-header .underline {
    width: 80px;
    height: 4px;
    background: var(--accent);
    margin: 0 auto;
}

/* About Section */
#about {
    background: var(--secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--text);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.skill-item {
    padding: 1rem;
    background: var(--bg-light);
    border-left: 4px solid var(--accent);
    border-radius: 5px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.skill-item:hover {
    transform: translateX(10px);
    box-shadow: 0 0 20px rgba(212, 165, 116, 0.2);
}

.skill-item strong {
    color: var(--accent);
    display: block;
    margin-bottom: 0.5rem;
}

.skill-item p {
    color: var(--text);
    font-size: 0.9rem;
}

/* Experience Section */
#experience {
    background: var(--primary);
}

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--accent);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--neutral);
}

.timeline-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(212, 165, 116, 0.2);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 1.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--primary);
    box-shadow: 0 0 10px rgba(212, 165, 116, 0.5);
}

.timeline-item h3 {
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.timeline-item .date {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.timeline-item p, .timeline-item ul {
    color: var(--text);
}

.timeline-item ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.timeline-item li {
    margin-bottom: 0.5rem;
}

/* Projects Section */
#projects {
    background: var(--secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-light);
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: 1px solid var(--neutral);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(212, 165, 116, 0.2);
}

.project-card h3 {
    color: var(--accent);
    margin-bottom: 1rem;
}

.project-card p {
    color: var(--text);
}

.project-card .tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tech-tag {
    background: var(--neutral);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
    color: var(--accent);
    border: 1px solid var(--accent);
}

/* Education Section */
#education {
    background: var(--primary);
}

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

.education-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    border: 1px solid var(--neutral);
    transition: transform 0.3s, box-shadow 0.3s;
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(212, 165, 116, 0.2);
}

.education-card h3 {
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.education-card .degree {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.education-card .gpa {
    color: var(--accent);
    font-size: 0.9rem;
}

.education-card p {
    color: var(--text);
}

.education-card strong {
    color: var(--text-light);
}

/* Contact Section */
#contact {
    background: var(--secondary);
    color: var(--text-light);
    text-align: center;
}

#contact p {
    color: var(--text);
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-item a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.3s;
}

.contact-item a:hover {
    opacity: 0.7;
}

/* Footer */
footer {
    background: var(--primary);
    color: var(--text);
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--neutral);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1.2rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

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

    nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        padding: 0 1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skill-logo-carousel {
        min-width: 80px;
        height: 80px;
    }
    
    .skill-logo-carousel img {
        width: 50px;
        height: 50px;
    }
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--accent);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-20px);
    }
    60% {
        transform: translateX(-50%) translateY(-10px);
    }
}

.contact-icon {
    width: 24px;
    height: 24px;
    filter: brightness(0) invert(1); /* makes icons white */
    opacity: 0.85;
    transition: opacity 0.3s;
}

.contact-item:hover .contact-icon {
    opacity: 1;
}

.collaboration-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 2rem;
}

.logo-item img {
    width: 120px;        /* fixed width */
    height: 60px;        /* fixed height */
    object-fit: contain; /* preserves aspect ratio without stretching */
    transition: transform 0.3s;
}