:root {
    --bg-primary: #fafafa;
    --bg-secondary: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #6b6b6b;
    --accent: #2d5f3f;
    --accent-light: #e8f3ed;
    --accent-hover: #1f4429;
    --border: rgba(0, 0, 0, 0.1);
    --shadow: rgba(0, 0, 0, 0.1);

    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --transition-speed: 0.3s;
    --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --text-primary: #e5e5e5;
    --text-secondary: #b8b8b8;
    --text-muted: #8a8a8a;
    --accent: #3d7f5f;
    --accent-light: #1a2f24;
    --accent-hover: #4d9f7f;
    --border: rgba(255, 255, 255, 0.1);
    --shadow: rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color var(--transition-speed) var(--transition-smooth),
        color var(--transition-speed) var(--transition-smooth);
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: all var(--transition-speed) var(--transition-smooth);
}

.nav.scrolled {
    box-shadow: 0 4px 20px var(--shadow);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-speed) var(--transition-smooth);
}

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

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color var(--transition-speed) var(--transition-smooth);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition-speed) var(--transition-smooth);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-speed) var(--transition-smooth);
}

.theme-toggle:hover {
    color: var(--accent);
}

.sun-icon,
.moon-icon {
    width: 20px;
    height: 20px;
}

[data-theme="dark"] .sun-icon {
    display: none;
}

[data-theme="light"] .moon-icon {
    display: none;
}

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 100%;
    background: radial-gradient(circle, var(--accent-light) 0%, transparent 70%);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(-20px, -20px) scale(1.1);
    }
}

.hero-content {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text {
    opacity: 0;
    animation: fadeInUp 1s ease-out forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-greeting {
    display: block;
    color: var(--text-secondary);
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.2s forwards;
}

.hero-name {
    display: block;
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.4s forwards;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    line-height: 1.8;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.6s forwards;
}

.hero-tags {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.8s forwards;
}

.tag {
    padding: 0.5rem 1rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-speed) var(--transition-smooth);
}

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

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1s forwards;
}

.btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) var(--transition-smooth);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(45, 95, 63, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border);
}

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

.social-links {
    display: flex;
    gap: 1rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 1.2s forwards;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all var(--transition-speed) var(--transition-smooth);
}

.social-link:hover {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    transform: translateY(-4px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeInRight 1s ease-out 0.4s forwards;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.image-wrapper {
    position: relative;
    width: 400px;
    height: 400px;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px var(--shadow);
    transition: transform var(--transition-speed) var(--transition-smooth);
}

.image-placeholder:hover {
    transform: scale(1.05) rotate(2deg);
}

.image-decoration {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 200px;
    height: 200px;
    background: var(--accent-light);
    border-radius: 20px;
    z-index: -1;
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    opacity: 0;
    animation: fadeIn 1s ease-out 1.5s forwards, bounce 2s ease-in-out 2s infinite;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 6rem 2rem;
}

.section-header {
    margin-bottom: 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-top: 1rem;
}

.view-all {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.view-all:hover {
    transform: translateX(5px);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-speed) var(--transition-smooth);
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.project-card:nth-child(1) {
    animation-delay: 0.1s;
}

.project-card:nth-child(2) {
    animation-delay: 0.2s;
}

.project-card:nth-child(3) {
    animation-delay: 0.3s;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-speed) var(--transition-smooth);
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px var(--shadow);
}

.project-card.featured {
    grid-column: 1 / -1;
}

.project-number {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-light);
    line-height: 1;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

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

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-speed) var(--transition-smooth);
}

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

.project-stars {
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

.timeline-controls {
    display: flex;
    gap: 1rem;
}

.timeline-jump {
    padding: 0.5rem 1.5rem;
    background: var(--accent-light);
    color: var(--accent);
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.timeline-jump:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-2px);
}

.timeline-footer {
    margin-top: 3rem;
    text-align: center;
}

.timeline-line {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent) 0%, var(--accent-light) 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 3rem;
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s var(--transition-smooth);
}

.timeline-item.minor {
    margin-bottom: 1.5rem;
}

.timeline-item.visible {
    opacity: 1;
    transform: translateX(0);
}

.timeline-marker {
    position: absolute;
    left: -9px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--accent);
    border: 4px solid var(--bg-primary);
    border-radius: 50%;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.timeline-marker.achievement {
    background: #4ade80;
}

.timeline-marker.work {
    background: var(--accent);
}

.timeline-marker.leadership {
    background: #60a5fa;
}

.timeline-item:hover .timeline-marker {
    transform: scale(1.3);
    box-shadow: 0 0 0 8px var(--accent-light);
}

.timeline-date {
    display: block;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.timeline-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.timeline-minor-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.timeline-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact {
    background: var(--bg-primary);
    padding: 6rem 2rem;
}

.contact-container,
.contact-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 4rem;
    align-items: center;
}

.contact-left,
.contact-info {
    padding: 0;
}

.contact-info-box {
    position: relative;
    padding: 3rem;
    background: white;
    border-radius: 16px;
    margin-bottom: 3rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .contact-info-box {
    background: var(--bg-secondary);
}

.green-accent-box,
.contact-decoration {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 28px;
    height: 28px;
    background: var(--accent);
    border-radius: 6px;
}

.contact-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.contact-intro,
.contact-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.contact-note {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.contact-note strong {
    color: var(--text-primary);
    font-weight: 700;
}

.contact-footer,
.contact-social-section {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    margin-top: 2rem;
}

.contact-arrow,
.curved-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
    width: 80px;
    height: 80px;
}

.contact-social-info,
.social-info {
    flex: 1;
}

.contact-social-note,
.social-disclaimer {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.contact-social-title,
.social-prompt {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.contact-social-links,
.social-icons {
    display: flex;
    gap: 1rem;
}

.contact-social-link,
.social-icon {
    width: 48px;
    height: 48px;
    background: #6b7280;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-speed) var(--transition-smooth);
    color: white;
}

.contact-social-link:hover,
.social-icon:hover {
    background: var(--accent);
    transform: translateY(-4px);
}

.contact-social-link svg,
.social-icon svg {
    fill: white;
}

.contact-right {
    padding: 0;
}

.contact-form-wrapper {
    background: #1A2F24;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.form-title {
    color: white;
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.contact-form input,
.contact-form textarea,
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: transparent;
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    font-family: var(--font-body);
    transition: all var(--transition-speed) var(--transition-smooth);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.contact-form input:focus,
.contact-form textarea:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(45, 95, 63, 0.2);
}

.contact-form textarea,
.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.btn-send,
.btn-primary {
    background: var(--accent);
    color: white;
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.btn-send:hover,
.btn-primary:hover {
    background: #1f4831;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(45, 95, 63, 0.3);
}

.btn-send svg {
    color: white;
    flex-shrink: 0;
}

.form-message {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
}

.form-message.success {
    background: rgba(74, 222, 128, 0.1);
    color: #4ade80;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.form-message.error {
    color: #dc2626;
    background: rgba(220, 38, 38, 0.1);
    border: 1px solid rgba(220, 38, 38, 0.3);
}

@media (max-width: 1024px) {

    .contact-container,
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 3rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-speed) var(--transition-smooth);
}

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

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero-name {
        font-size: 3rem;
    }

    .image-wrapper {
        width: 300px;
        height: 300px;
    }

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

    .contact-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
    }

    .hero-name {
        font-size: 2.5rem;
    }

    .hero-description {
        font-size: 1rem;
    }

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

    section {
        padding: 4rem 1.5rem;
    }

    .timeline-container {
        padding-left: 1rem;
    }

    .timeline-item {
        padding-left: 2rem;
    }
}

/* Projects Page */
.projects-page {
    min-height: 100vh;
}

.projects-hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.page-title {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent) 0%, #1f4831 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.filter-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 24px;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-smooth);
}

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

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

.projects-grid-section {
    padding: 4rem 2rem 6rem;
}

.featured-project {
    position: relative;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--bg-secondary) 100%);
    border-radius: 24px;
    padding: 3rem;
    margin-bottom: 4rem;
    border: 2px solid var(--accent);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--transition-smooth) forwards;
}

.featured-badge {
    position: absolute;
    top: -12px;
    right: 3rem;
    background: var(--accent);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.875rem;
}

.featured-content {
    max-width: 900px;
}

.featured-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.featured-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.featured-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.stat svg {
    color: var(--accent);
}

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

.project-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    transition: all var(--transition-speed) var(--transition-smooth);
    opacity: 0;
    transform: translateY(20px);
}

.project-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--accent);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 1rem;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.project-category {
    padding: 0.25rem 0.75rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.project-stats {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.project-badge {
    padding: 0.25rem 0.75rem;
    background: #60a5fa;
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    padding: 0.375rem 0.75rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.project-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: white;
    border-radius: 8px;
    font-weight: 600;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.project-link:hover {
    background: #1f4831;
    transform: translateY(-2px);
}

.project-link-small {
    padding: 0.5rem 1rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.project-link-small:hover {
    background: var(--accent);
    color: white;
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }

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

    .featured-project {
        padding: 2rem;
    }

    .featured-title {
        font-size: 1.75rem;
    }
}

/* Writing Page */
.writing-page {
    min-height: 100vh;
}

.writing-hero {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.search-filter {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.search-box {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.search-box svg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-speed);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.tag-filters {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.tag-btn {
    padding: 0.5rem 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.tag-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.tag-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.writing-content {
    padding: 4rem 2rem 6rem;
}

.featured-writing {
    margin-bottom: 4rem;
}

.featured-post-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.featured-post-link .featured-post {
    cursor: pointer;
}

.featured-post-link:hover .featured-post {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px var(--shadow);
}

.featured-post {
    position: relative;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--bg-secondary) 100%);
    border-radius: 24px;
    padding: 3rem;
    border: 2px solid var(--accent);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s var(--transition-smooth);
}

.featured-post.visible {
    opacity: 1;
    transform: translateY(0);
}

.featured-post-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent);
    color: white;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.featured-post-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.featured-post-excerpt {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.post-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
    transition: all var(--transition-speed) var(--transition-smooth);
    opacity: 0;
    transform: translateY(20px);
}

.post-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.post-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    border-color: var(--accent);
}

.post-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.post-tag {
    padding: 0.25rem 0.75rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.post-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.post-excerpt {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.post-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.coming-soon-notice {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 3rem;
    text-align: center;
    border: 1px solid var(--border);
}

.notice-content h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.notice-content p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.subscribe-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.subscribe-form input {
    flex: 1;
    padding: 1rem;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

.subscribe-form input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}

@media (max-width: 768px) {
    .featured-post-title {
        font-size: 1.75rem;
    }

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

    .subscribe-form {
        flex-direction: column;
    }
}

/* CV Page */
.cv-page {
    min-height: 100vh;
}

.cv-header {
    padding: 8rem 2rem 4rem;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.btn-download {
    margin-top: 2rem;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.btn-download:hover {
    background: #1f4831;
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(45, 95, 63, 0.3);
}

.cv-content {
    padding: 4rem 2rem 6rem;
}

.cv-container {
    max-width: 900px;
    margin: 0 auto;
}

.cv-section {
    margin-bottom: 1rem;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: all var(--transition-speed) var(--transition-smooth);
}

.cv-section:hover {
    border-color: var(--accent);
}

.cv-section-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: all var(--transition-speed);
}

.cv-section-header:hover {
    background: var(--accent-light);
}

.section-title-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.section-count {
    padding: 0.25rem 0.75rem;
    background: var(--accent);
    color: white;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 700;
}

.section-icon {
    color: var(--accent);
    transition: transform var(--transition-speed);
}

.cv-section.expanded .section-icon {
    transform: rotate(180deg);
}

.cv-section-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s var(--transition-smooth);
    padding: 0 2rem;
}

.cv-section.expanded .cv-section-content {
    max-height: 5000px;
    padding: 0 2rem 2rem;
}

.cv-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

.cv-item:last-child {
    border-bottom: none;
}

.cv-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    gap: 2rem;
}

.cv-item-header h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.cv-org {
    color: var(--text-secondary);
    font-weight: 500;
}

.cv-date {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
}

.cv-details {
    color: var(--text-secondary);
    line-height: 1.7;
}

.cv-details p {
    margin-bottom: 0.75rem;
}

.cv-details ul {
    margin-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.cv-details li {
    margin-bottom: 0.5rem;
}

.cv-details strong {
    color: var(--text-primary);
}

.skills-grid {
    display: grid;
    gap: 2rem;
}

.skill-category h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.skill-tag {
    padding: 0.5rem 1rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
}

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

.project-stat {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
}

.view-more-link {
    margin-top: 1.5rem;
    text-align: center;
}

.view-more-link a {
    color: var(--accent);
    font-weight: 600;
    transition: color var(--transition-speed);
}

.view-more-link a:hover {
    color: #1f4831;
}

@media (max-width: 768px) {
    .cv-item-header {
        flex-direction: column;
        gap: 0.5rem;
    }

    .cv-date {
        white-space: normal;
    }

    .cv-section-content {
        padding: 0 1.5rem;
    }

    .cv-section.expanded .cv-section-content {
        padding: 0 1.5rem 1.5rem;
    }

    .cv-section-header {
        padding: 1.25rem 1.5rem;
    }

    .section-title {
        font-size: 1.25rem;
    }
}

/* Article Page */
.article-page {
    min-height: 100vh;
}

.article-hero {
    padding: 7rem 2rem 3rem;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.article-hero-inner {
    max-width: 760px;
    margin: 0 auto;
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 2rem;
    transition: gap var(--transition-speed) var(--transition-smooth);
}

.article-back:hover {
    gap: 0.75rem;
}

.article-tag-row {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.article-tag {
    padding: 0.3rem 0.85rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 14px;
    font-size: 0.775rem;
    font-weight: 600;
}

.article-title {
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 1.25rem;
}

.article-meta {
    display: flex;
    gap: 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.article-body {
    padding: 3.5rem 2rem 5rem;
}

.article-body-inner {
    max-width: 760px;
    margin: 0 auto;
}

.article-body p {
    color: var(--text-secondary);
    font-size: 1.075rem;
    line-height: 1.9;
    margin-bottom: 1.75rem;
}

.article-body blockquote {
    border-left: 3px solid var(--accent);
    margin: 2.25rem 0;
    padding: 0.25rem 0 0.25rem 1.75rem;
    background: var(--accent-light);
    border-radius: 0 10px 10px 0;
}

.article-body blockquote p {
    color: var(--text-primary);
    font-style: italic;
    font-size: 1.05rem;
    margin-bottom: 0;
}

.article-body blockquote .quote-attr {
    display: block;
    margin-top: 0.6rem;
    font-style: normal;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 600;
}

.article-image {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    margin: 2rem 0 0.6rem;
    background: var(--accent-light);
    border: 1px solid var(--border);
}

.article-image img {
    width: 100%;
    display: block;
}

.article-image-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    gap: 0.6rem;
}

.article-image-placeholder svg {
    opacity: 0.5;
}

.article-caption {
    font-size: 0.82rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 2rem;
    font-style: italic;
}

.article-footer {
    max-width: 760px;
    margin: 0 auto;
    padding: 2.5rem 0 0;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.article-footer-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap var(--transition-speed) var(--transition-smooth);
}

.article-footer-back:hover {
    gap: 0.75rem;
}

.article-footer-author {
    text-align: right;
    color: var(--text-muted);
    font-size: 0.82rem;
}

.article-footer-author strong {
    display: block;
    color: var(--text-primary);
    font-size: 0.9rem;
    margin-bottom: 0.15rem;
}

@media (max-width: 768px) {
    .article-title {
        font-size: 2rem;
    }

    .article-hero {
        padding: 6rem 1.5rem 2.5rem;
    }

    .article-body {
        padding: 2.5rem 1.5rem 4rem;
    }

    .article-footer {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }

    .article-footer-author {
        text-align: left;
    }
}

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

.footer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}







/* ─── Calendar Flipbook ─────────────────────────────────────── */

.flipbook-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

/* ── Left panel: calendar ── */
.cal-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 24px var(--shadow);
    position: sticky;
    top: 6rem;
}

.cal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.cal-nav-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.cal-nav-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-light);
}

.cal-month-year {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cal-month-btn,
.cal-year-btn {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.cal-month-btn:hover,
.cal-year-btn:hover {
    background: var(--accent-light);
    color: var(--accent);
}

/* ── Sliding grid ── */
.cal-grid-viewport {
    overflow: hidden;
    position: relative;
}

.cal-grid-slider {
    display: flex;
    will-change: transform;
}

.cal-grid {
    min-width: 100%;
    padding: 0.75rem 1rem 1rem;
    flex-shrink: 0;
}

.cal-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    margin-bottom: 0.4rem;
}

.cal-weekday {
    text-align: center;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.25rem 0;
}

.cal-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
}

/* ── Day cell ── */
.cal-day {
    aspect-ratio: 1;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 500;
    cursor: default;
    position: relative;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    user-select: none;
}

.cal-day.empty {
    /* Truly empty padding cell, no number */
    background: transparent;
    pointer-events: none;
}

.cal-day.muted {
    /* Day with no events — slightly dimmer */
    background: color-mix(in srgb, var(--bg-primary) 60%, var(--bg-secondary) 40%);
    color: var(--text-muted);
}

.cal-day.has-event {
    cursor: pointer;
    color: var(--text-primary);
    font-weight: 600;
    border: 1px solid transparent;
}

.cal-day.has-event:hover {
    transform: scale(1.12);
    box-shadow: 0 4px 12px var(--shadow);
    z-index: 2;
    border-color: rgba(255, 255, 255, 0.2);
}

.cal-day.selected {
    outline: 2.5px solid var(--accent);
    outline-offset: 1px;
    z-index: 3;
    transform: scale(1.08);
}

/* Start-of-event triangle marker */
.cal-day.event-start::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 9px 9px 0 0;
    border-color: var(--accent) transparent transparent transparent;
    border-radius: 2px 0 0 0;
    z-index: 4;
}

/* ── Pattern definitions ──
           Work:     blue vertical stripes
           Academic: green horizontal stripes
           Leadership: yellow polka dots
           Applied via inline style (background shorthand for layering)
        ── */

/* ── Legend ── */
.cal-legend {
    display: flex;
    gap: 1.25rem;
    padding: 0.75rem 1rem 1rem;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.legend-swatch {
    width: 22px;
    height: 22px;
    border-radius: 5px;
    border: 1px solid var(--border);
}

.swatch-work {
    background: repeating-linear-gradient(90deg,
            rgba(96, 165, 250, 0.55) 0px,
            rgba(96, 165, 250, 0.55) 2.5px,
            rgba(226, 232, 240, 0.3) 2.5px,
            rgba(226, 232, 240, 0.3) 8px);
}

[data-theme="dark"] .swatch-work {
    background: repeating-linear-gradient(90deg,
            rgba(96, 165, 250, 0.55) 0px,
            rgba(96, 165, 250, 0.55) 2.5px,
            rgba(30, 41, 59, 0.4) 2.5px,
            rgba(30, 41, 59, 0.4) 8px);
}

.swatch-academic {
    background: repeating-linear-gradient(0deg,
            rgba(74, 222, 128, 0.55) 0px,
            rgba(74, 222, 128, 0.55) 2.5px,
            rgba(240, 253, 244, 0.3) 2.5px,
            rgba(240, 253, 244, 0.3) 8px);
}

.swatch-leadership {
    background-color: rgba(250, 204, 21, 0.08);
    background-image: radial-gradient(circle, rgba(250, 204, 21, 0.7) 2px, transparent 2px);
    background-size: 8px 8px;
}

/* ── Right panel: detail ── */
.detail-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    min-height: 420px;
    box-shadow: 0 4px 24px var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.detail-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3rem;
    text-align: center;
    color: var(--text-muted);
}

.detail-empty-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--accent-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.detail-empty p {
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 200px;
}

.detail-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    animation: detailFadeIn 0.25s ease;
}

@keyframes detailFadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.detail-top-bar {
    height: 5px;
    flex-shrink: 0;
}

.detail-body {
    padding: 1.75rem 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    width: fit-content;
}

.badge-work {
    background: rgba(96, 165, 250, 0.15);
    color: #3b82f6;
}

.badge-academic {
    background: rgba(74, 222, 128, 0.15);
    color: #16a34a;
}

.badge-leadership {
    background: rgba(250, 204, 21, 0.15);
    color: #92400e;
}

[data-theme="dark"] .badge-leadership {
    color: #fbbf24;
}

.detail-title {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin: 0;
}

.detail-org {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
}

.detail-date-range {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.detail-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.75;
    flex: 1;
}

.detail-divider {
    width: 40px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

/* Multiple events on one day */
.multi-event-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.multi-event-item {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-primary);
}

.multi-event-item .detail-title {
    font-size: 1.1rem;
}

/* ── Jump Picker overlay ── */
.jump-picker-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: overlayIn 0.2s ease;
    backdrop-filter: blur(4px);
}

.jump-picker-overlay.hidden {
    display: none;
}

@keyframes overlayIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.jump-picker-modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1.5rem;
    width: min(380px, 92vw);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
    animation: modalIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(20px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.jp-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.jp-year-nav {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.jp-year-nav:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.jp-year-label {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.jp-months-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.jp-month-btn {
    padding: 0.65rem 0.25rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.jp-month-btn:hover:not(:disabled) {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-light);
}

.jp-month-btn.has-events {
    background: var(--accent-light);
    color: var(--accent);
    border-color: var(--accent);
}

.jp-month-btn.current {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.jp-month-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.jp-close {
    display: block;
    width: 100%;
    margin-top: 1rem;
    padding: 0.65rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.jp-close:hover {
    border-color: var(--text-muted);
    color: var(--text-primary);
}

/* ── Mobile bottom sheet ── */
.sheet-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1500;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.sheet-backdrop.visible {
    opacity: 1;
    pointer-events: all;
}

.mobile-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-radius: 20px 20px 0 0;
    z-index: 1600;
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
    max-height: 75vh;
    overflow-y: auto;
    box-shadow: 0 -8px 40px rgba(0, 0, 0, 0.2);
}

.mobile-sheet.open {
    transform: translateY(0);
}

.sheet-handle-wrap {
    display: flex;
    justify-content: center;
    padding: 0.75rem;
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    z-index: 1;
}

.sheet-handle {
    width: 36px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
}

.sheet-body {
    padding: 0 1.5rem 2rem;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .flipbook-wrap {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .cal-panel {
        position: static;
    }

    .detail-panel {
        display: none;
        /* shown only as bottom sheet on mobile */
    }
}

@media (min-width: 901px) {

    .mobile-sheet,
    .sheet-backdrop {
        display: none !important;
    }
}

/* Today highlight */
.cal-day.today {
    box-shadow: inset 0 0 0 2px rgba(45, 95, 63, 0.45);
}


/* ─── Calendar: day number & point events ──────────────────────────── */

.cal-day-num {
    position: relative;
    z-index: 1;
    line-height: 1;
}

.point-event-circle {
    position: absolute;
    inset: 0;
    border-radius: 8px;
    background: var(--point-color, var(--accent));
    opacity: 0.92;
    z-index: 2;
    pointer-events: none;
}

/* When a day has a point event, make the number visible over the circle */
.cal-day.has-event .cal-day-num {
    z-index: 3;
    color: #fff;
    font-weight: 700;
    mix-blend-mode: normal;
}

/* For range-event cells (no circle), restore normal text color */
.cal-day.has-event:not(:has(.point-event-circle)) .cal-day-num {
    color: var(--text-primary);
}

/* ─── Calendar viewport: fixed height, no collapse during slide ─────── */

.cal-grid-viewport {
    /* Enough for 6 rows + weekday header without growing */
    min-height: 320px;
}

/* ─── Right panel: month event list ────────────────────────────────── */

.month-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.month-panel-heading {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-muted);
    padding: 1.25rem 1.75rem 0.75rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    font-size: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.month-event-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    overflow-y: auto;
    flex: 1;
}

/* ─── Month event item ──────────────────────────────────────────────── */

.month-event-item {
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.18s ease;
    position: relative;
    overflow: hidden;
}

.month-event-item:last-child {
    border-bottom: none;
}

.month-event-item:hover {
    background: var(--accent-light);
}

.month-event-item.expanded {
    background: var(--accent-light);
}

.mev-bar {
    height: 3px;
    width: 100%;
    flex-shrink: 0;
}

.mev-summary {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1.5rem;
}

.mev-badge {
    flex-shrink: 0;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
}

.mev-badge.badge-work {
    background: rgba(96, 165, 250, 0.15);
    color: #3b82f6;
}

.mev-badge.badge-academic {
    background: rgba(74, 222, 128, 0.15);
    color: #16a34a;
}

.mev-badge.badge-leadership {
    background: rgba(250, 204, 21, 0.15);
    color: #92400e;
}

[data-theme="dark"] .mev-badge.badge-leadership {
    color: #fbbf24;
}

.mev-title {
    flex: 1;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.mev-chevron {
    flex-shrink: 0;
    color: var(--text-muted);
    transition: transform 0.22s ease;
    display: flex;
    align-items: center;
}

.month-event-item.expanded .mev-chevron {
    transform: rotate(180deg);
}

/* Expandable detail section */
.mev-detail {
    max-height: 0;
    overflow: hidden;
    padding: 0 1.5rem;
    transition: max-height 0.28s cubic-bezier(0.4, 0, 0.2, 1),
                padding    0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.month-event-item.expanded .mev-detail {
    max-height: 400px;
    padding: 0 1.5rem 1.25rem;
}

.mev-org {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 0.3rem;
}

.mev-range {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.mev-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.7;
}