/* Import modern fonts from Google Fonts */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap");

:root {
    --color-bg: #ffffff;
    --color-text: #111827;
    --color-text-muted: #4b5563;
    --color-text-light: #9ca3af;
    --color-primary: #000000;
    --color-accent: #10b981; /* Emerald green for tech/quantum accent */
    --color-accent-hover: #059669;
    --color-border: #e5e7eb;
    --color-card-bg: #f9fafb;
    --color-row-hover: #f3f4f6;
    --font-heading:
        "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        sans-serif;
    --font-body:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        sans-serif;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md:
        0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg:
        0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Base Layout */

/* Add top padding above logo */
.logo-container {
    margin-top: 2rem; /* space above logo */
}

/* Center ORCID text */
.orcid {
    text-align: center;
    margin-top: 0.5rem;
    font-weight: 500;
    color: var(--color-text-muted);
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    footer {
        padding: 4rem 0 2.5rem 0;
        border-bottom: 1px solid var(--color-border);
        animation: fadeIn var(--transition-normal) forwards;
    }

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

    .footer-bottom {
        display: flex;
        justify-content: center;
        gap: 1rem;
        margin-top: 1rem;
    }

    .logo-container {
        display: block;
        max-width: 320px;
        width: 100%;
        height: auto;
        transition: transform var(--transition-fast);
    }

    .logo-container:hover {
        transform: translateY(-2px);
    }

    .logo-container img {
        display: block;
        margin: 0 auto;
    }
    width: 100%;
    height: auto;
    display: block;
}

/* Intro Section */
.intro-section {
    padding: 3rem 0;
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.intro-text-wrapper {
    background-color: var(--color-card-bg);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    transition:
        box-shadow var(--transition-normal),
        border-color var(--transition-normal);
}

.intro-text-wrapper:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-text-light);
}

.intro-text {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    font-weight: 400;
    line-height: 1.75;
}

.github-link-container {
    margin-top: 1.5rem;
    display: inline-flex;
    align-items: center;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    font-size: 1.125rem;
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 2px;
    transition:
        color var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast);
}

.github-link:hover {
    color: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateX(4px);
}

.github-link svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* Portfolio Section */
.portfolio-section {
    padding: 2rem 0 6rem 0;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 2rem;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-title::after {
    content: "";
    display: block;
    flex-grow: 1;
    height: 1px;
    background-color: var(--color-border);
}

/* Modern Responsive Table styling */
.table-container {
    background-color: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.projects-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.projects-table th {
    background-color: var(--color-card-bg);
    padding: 1.25rem 1.5rem;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border);
}

.projects-table td {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    vertical-align: middle;
    transition: background-color var(--transition-fast);
}

.projects-table tr:last-child td {
    border-bottom: none;
}

.projects-table tr {
    transition: transform var(--transition-fast);
}

.projects-table tr:hover td {
    background-color: var(--color-row-hover);
}

.project-title-cell {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    padding-right: 2rem;
}

.action-cell {
    white-space: nowrap;
}

/* Button styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.625rem 1.125rem;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.btn-research {
    color: var(--color-accent-hover);
    background-color: transparent;
    border-color: var(--color-border);
}

.btn-research:hover {
    background-color: #ecfdf5;
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-docs {
    background-color: var(--color-primary);
    color: #ffffff;
}

.btn-docs:hover {
    background-color: #27272a;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-access {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-access:hover {
    background-color: var(--color-text);
    color: #ffffff;
    border-color: var(--color-text);
}

/* Footer Section */
footer {
    background-color: var(--color-card-bg);
    border-top: 1px solid var(--color-border);
    padding: 4rem 0;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
}

.footer-text {
    line-height: 1.75;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    border-top: 1px solid var(--color-border);
    padding-top: 2rem;
}

.linkedin-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #0a66c2;
    text-decoration: none;
    font-weight: 600;
    transition:
        color var(--transition-fast),
        transform var(--transition-fast);
}

.linkedin-badge:hover {
    color: #004182;
    transform: translateY(-1px);
}

.linkedin-badge svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.copyright {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Toast/Alert notification */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #1f2937;
    color: #ffffff;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 1000;
    transform: translateY(150%);
    opacity: 0;
    transition:
        transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
        opacity 0.4s ease;
    border: 1px solid #374151;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-icon {
    color: var(--color-accent);
    display: flex;
    align-items: center;
}

.toast-message {
    font-size: 0.875rem;
    font-weight: 500;
}

/* Modal styling for subjective docs/research */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 2.5rem;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    transform: scale(0.95);
    transition: transform var(--transition-normal);
    text-align: center;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-icon {
    width: 64px;
    height: 64px;
    background-color: #ecfdf5;
    color: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
}

.modal-icon svg {
    width: 32px;
    height: 32px;
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.modal-description {
    color: var(--color-text-muted);
    font-size: 0.975rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .projects-table th,
    .projects-table td {
        padding: 1.25rem 1rem;
    }
}

@media (max-width: 768px) {
    header {
        padding: 2.5rem 0 1.5rem 0;
    }

    .intro-text-wrapper {
        padding: 1.5rem;
    }

    .intro-text {
        font-size: 1rem;
    }

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

    /* Force table to display as beautiful cards on mobile */
    .projects-table,
    .projects-table thead,
    .projects-table tbody,
    .projects-table th,
    .projects-table td,
    .projects-table tr {
        display: block;
    }

    .projects-table thead {
        display: none; /* Hide header row */
    }

    .projects-table tr {
        border-bottom: 1px solid var(--color-border);
        padding: 1.5rem 1rem;
    }

    .projects-table tr:last-child {
        border-bottom: none;
    }

    .projects-table td {
        border-bottom: none;
        padding: 0.5rem 0;
        width: 100%;
    }

    .project-title-cell {
        font-size: 1.125rem;
        font-weight: 700;
        margin-bottom: 0.75rem;
        padding-right: 0;
    }

    .action-cell {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
        margin-top: 0.5rem;
    }

    .btn {
        flex: 1 1 calc(50% - 0.25rem); /* Buttons take up half width or wrap */
        padding: 0.75rem 1rem;
    }

    .btn-access {
        flex: 1 1 100%; /* Request Access button takes full width at bottom */
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}