/* CSS Reset and Variables */
:root {
    --bg-color: #0f172a;
    /* Dark slate blue typical of modern "premium" dark modes */
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    /* Sky blue accent */
    --accent-hover: #0ea5e9;
    --border-color: #334155;

    --font-main: 'Outfit', sans-serif;

    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    --radius-md: 12px;
    --radius-lg: 24px;

    --transition: all 0.3s ease;
}

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

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

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

ul {
    list-style: none;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-xl) 0;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    background: linear-gradient(to right, var(--text-primary), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    position: sticky;
    top: 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
}

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

/* About Section */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    min-height: 80vh;
    /* Make it feel like a hero section */
}

.about-text h2 {
    text-align: left;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
}

.primary-btn {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

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

.img-profile {
    width: 100%;
    aspect-ratio: 1;
    background-color: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

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

/* Experience & Projects (Shared Item Styles) */
.timeline-item,
.project-item {
    margin-bottom: var(--spacing-lg);
    /* display: flex; removed as we are nesting logo inside */
}

.logo-box {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-secondary);
    overflow: hidden;
    /* Added for nesting */
    margin-right: var(--spacing-md);
}

.logo-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.content-box {
    flex: 1;
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
}

.content-box:hover {
    border-color: var(--accent-color);
}

.content-box .header {
    padding: var(--spacing-md);
    display: flex;
    /* Flex works well here too */
    align-items: center;
    cursor: pointer;
    background-color: rgba(255, 255, 255, 0.02);
}

.title-group {
    flex: 1;
    /* Take remaining space */
}

.content-box .header:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.title-group h3 {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

.title-group .position {
    color: var(--accent-color);
    font-size: 0.95rem;
    font-weight: 500;
}

.links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: 0.2rem;
}

.icon-link {
    font-size: 1.2rem;
    color: var(--text-secondary);
    text-decoration: none;
}

.icon-link:hover {
    color: var(--accent-color);
}

/* Standard content link */
.content-link {
    color: var(--accent-color);
    text-decoration: underline;
    text-underline-offset: 3px;
    font-weight: 500;
}

.content-link:hover {
    color: var(--accent-hover);
}

.toggle-icon {
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: transform 0.3s;
}

/* Accordion Logic */
.details {
    max-height: 0;
    overflow: hidden;
    padding: 0 var(--spacing-md);
    transition: all 0.4s cubic-bezier(0, 1, 0, 1);
    opacity: 0;
}

.content-box.active .details {
    max-height: 2000px;
    /* Arbitrary large number */
    padding-bottom: var(--spacing-md);
    opacity: 1;
    transition: all 0.4s cubic-bezier(1, 0, 1, 0);
}

.content-box.active .toggle-icon {
    transform: rotate(45deg);
}

.details p {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
}

.details ul {
    list-style: disc;
    margin-left: var(--spacing-lg);
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
}

/* Project Gallery */
.project-media {
    margin-top: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.project-media img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
    cursor: pointer;
    display: block;
}

.project-media img:hover {
    transform: scale(1.02);
    border-color: var(--accent-color);
}

/* Contact Section */
.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    font-size: 2rem;
    /* Increased size for icons */
    align-items: center;
}

.custom-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
    /* Optical alignment with text bottom */
    filter: invert(61%) sepia(6%) saturate(1067%) hue-rotate(179deg) brightness(91%) contrast(88%);
    /* Matches --text-secondary somewhat */
    transition: var(--transition);
}

/* Applies the hover filter to custom-icon when ANY parent link is hovered */
a:hover .custom-icon {
    filter: invert(72%) sepia(34%) saturate(6011%) hue-rotate(175deg) brightness(102%) contrast(97%);
    /* Matches --accent-color approximately */
}

.contact-links a {
    color: var(--text-secondary);
    position: relative;
}

.contact-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s;
}

.contact-links a:hover::after {
    width: 100%;
}

.contact-links a:hover {
    color: var(--accent-color);
}

/* Footer & Top Button */
footer {
    text-align: center;
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    margin-top: var(--spacing-xl);
    position: relative;
}

#scrollToTopBtn {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--accent-color);
    color: var(--bg-color);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

#scrollToTopBtn.show {
    opacity: 1;
    pointer-events: all;
}

#scrollToTopBtn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-4px);
}

/* Responsive */
@media (max-width: 768px) {
    .about-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-text h2 {
        text-align: center;
    }

    .nav-links {
        display: none;
        /* In a real app, implement hamburger menu */
    }
}

/* Image Modal (Lightbox) */
.modal {
    display: none;
    /* Hidden by default */
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
    /* Flexbox centering */
    align-items: center;
    justify-content: center;
}

.modal-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 1000px;
    max-height: 90vh;
    object-fit: contain;
    animation-name: zoom;
    animation-duration: 0.2s;
}

@keyframes zoom {
    from {
        transform: scale(0)
    }

    to {
        transform: scale(1)
    }
}

.close {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.2s;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: var(--accent-color);
    text-decoration: none;
    cursor: pointer;
}

/* Responsive Modal */
@media only screen and (max-width: 700px) {
    .modal-content {
        width: 100%;
    }
}