@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg: #000000;
    --surface: #111111;
    --surface-2: #1a1a1a;
    --border: #2a2a2a;
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --text-tertiary: #6e6e73;
    --accent: #f5f5f7;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header.hero {
    padding: 80px 0 48px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 0;
}

header.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.job-title {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-tertiary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 4px;
    background: none;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
}

/* Nav */
nav.sticky-nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border);
}

nav.sticky-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 0;
    margin: 0;
    gap: 0;
}

nav.sticky-nav li {
    margin: 0;
}

nav.sticky-nav a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    padding: 14px 16px;
    transition: color 0.2s ease;
}

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

/* Sections */
section {
    padding: 48px 0;
    border-bottom: 1px solid var(--border);
    background: transparent;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    transition: none;
    border-left: none;
    border-right: none;
    border-top: none;
}

section:hover {
    transform: none;
    border-color: var(--border);
}

h2 {
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 24px;
}

h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Education */
.education-item {
    margin-bottom: 28px;
}

.education-item h3 {
    margin-bottom: 4px;
}

.education-item p {
    color: var(--text-tertiary);
    font-size: 0.88rem;
    margin-bottom: 14px;
}

.topic-list {
    list-style-type: none;
    padding-left: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.topic-list li {
    background-color: var(--surface-2);
    border: 1px solid var(--border);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.topic-list li:hover {
    background-color: var(--text-primary);
    color: var(--bg);
    border-color: var(--text-primary);
}

/* Experience */
.experience-item {
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.experience-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.experience-item h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.experience-item p {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: 10px;
}

.experience-item strong {
    font-weight: 500;
    color: var(--text-secondary);
}

.aligned-list {
    padding-left: 16px;
    list-style: disc;
}

.aligned-list li {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 6px;
}

/* Projects */
.project {
    background-color: var(--surface);
    border: 1px solid var(--border);
    padding: 20px 24px;
    margin-bottom: 12px;
    border-radius: 12px;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.project:hover {
    border-color: #444;
    background-color: var(--surface-2);
}

.project h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.project p {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    line-height: 1.65;
}

/* Appearances */
.appearances-list {
    list-style-type: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.appearance-link {
    display: inline-flex;
    align-items: center;
    padding: 12px 18px;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.appearance-link:hover {
    background-color: var(--surface-2);
    border-color: #444;
    color: var(--text-primary);
    transform: none;
    box-shadow: none;
}

.appearance-link .icon {
    margin-right: 10px;
}

.tedx-link, .crowd4sdg-link, .uparis-link {
    border-color: var(--border);
}

.tedx-link:hover, .crowd4sdg-link:hover, .uparis-link:hover {
    background-color: var(--surface-2);
    color: var(--text-primary);
}

/* Contact */
.contact-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.contact-label {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    min-width: 70px;
    background: none;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    height: auto;
    justify-content: flex-start;
    margin-right: 0;
}

.contact-value {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-value a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-value a:hover {
    color: var(--text-primary);
    text-decoration: none;
}

/* Certifications */
#certifications .aligned-list li {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Personal */
#personal h3 {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-top: 20px;
    margin-bottom: 8px;
}

#personal h3:first-child {
    margin-top: 0;
}

/* Footer */
footer {
    background: var(--bg);
    color: var(--text-tertiary);
    text-align: center;
    padding: 32px 0;
    font-size: 0.82rem;
    border-top: 1px solid var(--border);
    margin-top: 0;
}

/* Links */
a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--text-secondary);
}

/* Floating button */
.floating-button {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background-color: var(--text-primary);
    color: var(--bg);
    border: none;
    border-radius: 980px;
    padding: 12px 22px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 24px rgba(0,0,0,0.4);
    transition: opacity 0.2s ease, transform 0.2s ease;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.01em;
}

.floating-button:hover {
    opacity: 0.85;
    transform: scale(1.03);
}

/* Modal */
.modal {
    display: none;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 2000;
}

.modal-content {
    background-color: var(--surface);
    border: 1px solid var(--border);
    padding: 32px;
    border-radius: 18px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-content h2 {
    margin-bottom: 20px;
}

.scrollable-content {
    overflow-y: auto;
    max-height: 60vh;
}

/* Menu (nav wrapper) */
.menu {
    background: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
}

.menu ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

.menu li {
    margin: 0;
}

.menu a {
    display: block;
    text-decoration: none;
    color: var(--text-secondary);
    padding: 14px 16px;
    font-size: 0.82rem;
    font-weight: 500;
    border-radius: 0;
    transition: color 0.2s ease;
}

.menu a:hover {
    background-color: transparent;
    color: var(--text-primary);
    box-shadow: none;
}

@media (max-width: 768px) {
    header.hero h1 {
        font-size: 2.2rem;
    }

    nav.sticky-nav a, .menu a {
        padding: 10px 10px;
        font-size: 0.78rem;
    }
}