/* Modern Portfolio Styles */
*, *::before, *::after {
    box-sizing: border-box;
}

:root {
    --color-primary: #1BBC9B;
    --color-primary-light: #84dfcf;
    --color-accent: #FF6F69;
    --color-accent-light: #ffaaaf;
    --color-bg: #f8f9fa;
    --color-card: #ffffff;
    --color-text: #2d3436;
    --color-text-light: #636e72;
    --color-border: #e9ecef;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

::selection {
    color: white;
    background: var(--color-primary);
}

html {
    scroll-behavior: smooth;
}

/* Archive Banner */
.archive-banner {
    background: var(--color-border);
    color: var(--color-text-light);
    text-align: center;
    padding: 12px 20px;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    margin-bottom: 32px;
}

.archive-banner a {
    color: var(--color-text);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

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

body {
    margin: 0;
    padding: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    font-family: 'Space Grotesk', -apple-system, sans-serif;
    font-weight: 600;
    line-height: 1.15;
    color: var(--color-text);
    letter-spacing: -0.03em;
}

h1 {
    font-size: clamp(2.75rem, 7vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text);
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--color-text);
    margin-top: 0;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 28px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.nav-brand {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 1.15rem;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition);
    letter-spacing: -0.02em;
}

.nav-brand:hover {
    color: var(--color-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 40px;
}

.nav-menu a {
    color: var(--color-text-light);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition);
}

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

.nav-menu a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition);
}

.nav-toggle:hover {
    background: var(--color-bg);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition);
    border-radius: 1px;
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        display: none;
        box-shadow: var(--shadow-lg);
        border-bottom-left-radius: var(--radius-lg);
        border-bottom-right-radius: var(--radius-lg);
    }

    .nav-menu.active {
        display: flex;
    }
}

/* Header / Hero */
.header {
    padding: 48px 0 32px;
    text-align: center;
}

.subtitle {
    font-family: 'DM Sans', sans-serif;
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-light);
    font-weight: 400;
}

/* Sections */
section {
    padding: 40px 0;
}

#about {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    padding: 32px 36px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
}

#about h2::after {
    display: none;
}

.about-content {
    max-width: 680px;
}

.about-content p {
    margin-bottom: 1.25em;
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.75;
}

.about-content p:last-child {
    margin-bottom: 0;
}

.about-content em {
    font-style: normal;
    color: var(--color-text);
    background: linear-gradient(120deg, var(--color-primary-light) 0%, var(--color-primary-light) 100%);
    background-repeat: no-repeat;
    background-size: 100% 0.3em;
    background-position: 0 88%;
}

.about-content strong {
    color: var(--color-text);
    font-weight: 600;
}

/* Projects Section */
#projects {
    padding-top: 20px;
}

.projects-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.projects-title-container h2 {
    margin: 0;
}

.projects-title-container h2::after {
    display: none;
}

.projects-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.search-container {
    position: relative;
}

.search-container input {
    padding: 12px 40px 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.95rem;
    width: 220px;
    transition: all var(--transition);
    background: var(--color-card);
}

.search-container input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(27, 188, 155, 0.1);
}

.search-container input::placeholder {
    color: #adb5bd;
}

.clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 20px;
    color: #adb5bd;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color var(--transition);
}

.clear-btn:hover {
    color: var(--color-text);
}

.filter-buttons {
    display: flex;
    gap: 0;
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 4px;
    box-shadow: var(--shadow-sm);
}

.filter-btn {
    padding: 10px 20px;
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all var(--transition);
    border-radius: var(--radius-sm);
}

.filter-btn:hover {
    color: var(--color-text);
}

.filter-btn.active {
    background: var(--color-primary);
    color: white;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

@media (max-width: 900px) {
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

/* Project Panel */
.project-panel {
    background: var(--color-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.project-panel:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.project-panel-header {
    padding: 24px 24px 16px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
}

.project-panel-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 8px 0;
    text-decoration: none;
    display: block;
    transition: color var(--transition);
    letter-spacing: -0.02em;
}

.project-panel-title:hover {
    color: var(--color-primary);
}

.project-meta {
    font-size: 0.9rem;
    color: var(--color-text-light);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
}

.project-category {
    color: var(--color-accent);
    font-weight: 500;
}

.project-category:hover {
    color: var(--color-accent-light);
}

.featured-star {
    color: var(--color-primary);
    font-size: 1.25rem;
    opacity: 0.8;
}

.project-image-container {
    display: block;
    position: relative;
    padding-bottom: 56.25%;
    overflow: hidden;
    cursor: pointer;
    background: var(--color-bg);
}

.project-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-image-container:hover .project-image {
    transform: scale(1.08);
}

.project-image-container::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.1), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-image-container:hover::after {
    opacity: 1;
}

.project-copy {
    padding: 20px 24px;
}

.project-description {
    color: var(--color-text-light);
    margin: 0 0 12px 0;
    line-height: 1.7;
    font-size: 0.95rem;
}

.project-description.collapsed {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    display: inline-block;
    margin-top: 4px;
}

.read-more:hover {
    color: var(--color-primary-light);
}

.read-more::before {
    content: '';
}

.read-more::after {
    content: ' →';
}

.project-partners,
.project-technologies {
    font-size: 0.85rem;
    margin: 8px 0;
    color: var(--color-text-light);
}

.project-partners .label,
.project-technologies .label {
    color: var(--color-text-light);
}

.project-partners a,
.project-technologies a {
    color: var(--color-text);
    font-weight: 500;
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-light);
    font-size: 1.1rem;
}

.project-panel-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    background: var(--color-bg);
}

.project-panel-footer a {
    color: var(--color-text);
    font-weight: 500;
}

.project-panel-shadow {
    display: none;
}

/* Featured Notice */
.featured-notice {
    color: var(--color-text-light);
    margin-top: 32px;
    text-align: center;
    font-size: 0.95rem;
}

.featured-notice.hidden {
    display: none;
}

/* Contact Section */
#contact {
    text-align: center;
    padding: 48px 0;
}

#contact h2 {
    display: block;
}

#contact h2::after {
    left: 50%;
    transform: translateX(-50%);
}

.contact-tagline {
    color: var(--color-text-light);
    font-size: 1.1rem;
    margin-top: 0;
    margin-bottom: 8px;
}

.contact-icons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
    padding: 32px 0;
}

.contact-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--color-card);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.contact-icons a:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 28px;
    height: 28px;
    opacity: 0.6;
    transition: opacity var(--transition);
}

.contact-icons a:hover .contact-icon {
    opacity: 1;
}

/* Footer */
.footer {
    color: var(--color-text-light);
    font-size: 0.85rem;
    padding: 32px 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(8px);
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.lightbox-caption {
    color: rgba(255,255,255,0.8);
    text-align: center;
    padding: 16px;
    font-size: 0.9rem;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
    position: absolute;
    background: rgba(255,255,255,0.1);
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 16px;
    opacity: 0.7;
    transition: all var(--transition);
    border-radius: 50%;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 1;
    background: rgba(255,255,255,0.2);
}

.lightbox-close {
    top: 24px;
    right: 24px;
}

.lightbox-prev {
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-counter {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    background: rgba(0,0,0,0.5);
    padding: 8px 16px;
    border-radius: 20px;
}

body.lightbox-open {
    overflow: hidden;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .header {
        padding: 32px 0 24px;
    }

    section {
        padding: 32px 0;
    }

    #about {
        padding: 24px 20px;
        margin: 0 -8px 24px;
        border-radius: var(--radius-md);
    }

    .projects-header {
        flex-direction: column;
        align-items: stretch;
    }

    .projects-controls {
        justify-content: space-between;
    }

    .search-container input {
        width: 100%;
    }

    .project-panel-header {
        padding: 20px 20px 12px;
    }

    .project-copy {
        padding: 16px 20px;
    }

    .project-panel-footer {
        padding: 14px 20px;
    }
}