:root {
    --teal-100: #000000;
    --teal-80: #06031f;
    --teal-60: #210450;
    --teal-40: #06213f;
    --teal-dark: #050707;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: #fafbfc;
    color: #333;
    line-height: 1.7;
    font-size: 17px;
    -webkit-font-smoothing: antialiased;
}

/* ── Animations ── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(10,130,118,0.3); }
    50% { box-shadow: 0 0 0 12px rgba(10,130,118,0); }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
@keyframes blink-orange {
    0%, 100% { color: #e65100; opacity: 1; }
    50% { color: #ff9800; opacity: 0.6; }
}
.blink-orange {
    animation: blink-orange 1.8s ease-in-out infinite;
    font-weight: 700;
}

/* ── Sticky Header ── */
.sticky-header {
    position: sticky;
    top: 0;
    background-color: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    z-index: 100;
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    transition: box-shadow 0.3s ease;
}
.sticky-header:hover { box-shadow: 0 2px 20px rgba(0,0,0,0.06); }
.header-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--teal-100);
    letter-spacing: -0.3px;
    text-decoration: none;
}
.header-brand span { color: #999; font-weight: 400; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
    color: #555; text-decoration: none; font-weight: 600; font-size: 13px;
    transition: color 0.3s ease; text-transform: uppercase;
    letter-spacing: 0.5px; padding: 6px 0; position: relative;
}
.nav-links a::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
    background: var(--teal-100); transform: scaleX(0); transition: transform 0.3s ease;
}
.nav-links a:hover { color: var(--teal-100); }
.nav-links a:hover::after { transform: scaleX(1); }

/* ── Mobile Menu ── */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #333;
    margin: 5px 0;
    transition: 0.3s;
}

/* ── Hero ── */
.hero {
    background: linear-gradient(135deg, var(--teal-dark) 0%, var(--teal-100) 50%, var(--teal-80) 100%);
    color: #fff;
    padding: 100px 40px 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(255,255,255,0.05) 0%, transparent 50%);
    pointer-events: none;
}
.hero::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 120px;
    background: linear-gradient(to top, #fafbfc 0%, transparent 100%); pointer-events: none;
}
.hero-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}
.profile-image {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255,255,255,0.3);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease, float 4s ease-in-out 2s infinite;
}
.hero-eyebrow {
    font-size: 13px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 2.5px; margin-bottom: 16px; opacity: 0.7;
    animation: fadeInUp 0.9s ease;
}
.hero h1 {
    font-size: 52px; font-weight: 800; margin-bottom: 16px;
    letter-spacing: -1.5px; line-height: 1.1; animation: fadeInUp 1s ease;
}
.hero-tagline {
    font-size: 20px; font-weight: 300; margin-bottom: 14px;
    color: rgba(255,255,255,0.9); font-style: italic; animation: fadeInUp 1.2s ease;
}
.hero-meta {
    font-size: 15px; opacity: 0.8; animation: fadeInUp 1.3s ease;
    margin-bottom: 40px;
}
.hero-meta strong { opacity: 1; }
.hero-kpi-strip {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
    max-width: 800px; margin: 0 auto; animation: fadeInUp 1.5s ease;
}
.hero-kpi {
    text-align: center; padding: 20px 12px;
    background: rgba(255,255,255,0.1); border-radius: 12px;
    backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.15);
    transition: transform 0.3s ease, background 0.3s ease;
}
.hero-kpi:hover { transform: translateY(-4px); background: rgba(255,255,255,0.18); }
.hero-kpi-value {
    font-size: 36px; font-weight: 800; color: #fff;
    line-height: 1; margin-bottom: 6px; letter-spacing: -1px;
}
.hero-kpi-label {
    font-size: 11px; font-weight: 600; text-transform: uppercase;
    letter-spacing: 1.5px; color: rgba(255,255,255,0.7);
}

/* ── Container ── */
.container {
    max-width: 1100px; margin: 0 auto; padding: 60px 40px;
}

/* ── Section ── */
.section { margin-bottom: 80px; }
.section-header {
    text-align: center;
    margin-bottom: 48px;
}
.section-label {
    color: var(--teal-100); font-size: 12px; font-weight: 800;
    text-transform: uppercase; letter-spacing: 2px; margin-bottom: 10px;
}
.section-header h2 {
    font-size: 36px; font-weight: 800; color: #1a1a1a;
    letter-spacing: -0.5px; margin-bottom: 12px;
}
.section-header p {
    font-size: 18px; color: #666; max-width: 600px; margin: 0 auto;
}

/* ── About ── */
.about-body {
    max-width: 800px; margin: 0 auto;
}
.about-body p {
    color: #444; font-size: 16px; line-height: 1.9;
    text-align: justify; margin-bottom: 18px;
}
.about-body p strong { color: var(--teal-100); }

/* Availability badge */
.avail-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: #e8f5e9; color: #1b5e20;
    font-size: 13px; font-weight: 700;
    padding: 8px 20px; border-radius: 24px;
    margin-bottom: 28px;
    text-transform: uppercase; letter-spacing: 1px;
}
.avail-dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: #2e7d32;
    animation: pulse 2s infinite;
}

/* Country strip */
.country-strip {
    display: flex; justify-content: center; flex-wrap: wrap;
    gap: 10px; margin: 28px 0;
}
.country-tag {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 6px 14px; border-radius: 20px;
    background: #f4f6f8; font-size: 13px; font-weight: 600;
    color: #444; letter-spacing: 0.3px;
    border: 1px solid #e0e4e8;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.country-tag:hover { transform: translateY(-2px); box-shadow: 0 3px 10px rgba(0,0,0,0.08); }
.country-flag { font-size: 18px; line-height: 1; }

/* CTA */
.about-cta {
    text-align: center; margin-top: 36px;
}
.about-cta a {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 32px; border-radius: 10px;
    font-weight: 700; font-size: 15px;
    text-decoration: none; transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.about-cta a:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(0,0,0,0.12); }
.cta-primary {
    background: linear-gradient(135deg, var(--teal-dark), var(--teal-100));
    color: #fff;
}
.cta-secondary {
    background: #fff; color: var(--teal-100);
    border: 2px solid var(--teal-100);
    margin-left: 12px;
}

@media (max-width: 768px) {
    .country-strip { gap: 8px; }
    .about-cta a { display: flex; justify-content: center; margin: 8px 0; }
    .cta-secondary { margin-left: 0; }
}

/* ── Projects ── */
.projects-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.project-card {
    background: #fff; border-radius: 16px; overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 5px solid var(--teal-100);
    text-decoration: none; color: inherit;
    display: flex; flex-direction: column;
}
.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}
.project-card-body { padding: 32px; flex: 1; display: flex; flex-direction: column; }
.project-status {
    display: inline-block; font-size: 11px; font-weight: 700;
    padding: 4px 12px; border-radius: 20px; margin-bottom: 16px;
    text-transform: uppercase; letter-spacing: 0.8px; align-self: flex-start;
}
.status-thesis { background: linear-gradient(135deg, #e0f2f1, #b2dfdb); color: #004d47; }
.status-vision { background: linear-gradient(135deg, #e8eaf6, #c5cae9); color: #283593; }
.project-card h3 {
    font-size: 22px; font-weight: 800; color: #1a1a1a;
    margin-bottom: 12px; letter-spacing: -0.3px;
}
.project-card p {
    font-size: 15px; color: #555; line-height: 1.7; margin-bottom: 20px; flex: 1;
}
.project-tags {
    display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px;
}
.project-tag {
    font-size: 12px; font-weight: 600; padding: 4px 10px;
    border-radius: 6px; background: #f0f0f0; color: #555;
}
.project-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--teal-100); font-weight: 700; font-size: 14px;
    text-decoration: none; transition: gap 0.3s ease;
}
.project-link:hover { gap: 10px; }

/* ── Skills (Pill Tags) ── */
.skills-pills {
    display: flex; flex-wrap: wrap; gap: 10px;
    justify-content: center; margin-top: 10px;
}
.skill-pill {
    font-size: 13px; font-weight: 600; padding: 8px 18px;
    border-radius: 24px; display: inline-flex; align-items: center; gap: 6px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: default; white-space: nowrap;
}
.skill-pill:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.sp-teal   { background: #e0f2f1; color: #004d47; }
.sp-blue   { background: #e3f2fd; color: #0d47a1; }
.sp-purple { background: #f3e5f5; color: #4a148c; }
.sp-orange { background: #fff3e0; color: #e65100; }
.sp-pink   { background: #fce4ec; color: #880e4f; }
.sp-green  { background: #e8f5e9; color: #1b5e20; }
.sp-amber  { background: #fff8e1; color: #e65c00; }
.sp-grey   { background: #eceff1; color: #37474f; }
.sp-indigo { background: #e8eaf6; color: #283593; }
.sp-red    { background: #fbe9e7; color: #bf360c; }

/* ── Timeline Skill Tags ── */
.tl-skills {
    display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px;
}
.tl-skill {
    font-size: 11px; font-weight: 600; padding: 3px 10px;
    border-radius: 14px; white-space: nowrap;
}

/* ── Experience Timeline ── */
.timeline {
    position: relative; padding: 20px 0; max-width: 700px; margin: 0 auto;
}
.timeline::before {
    content: ''; position: absolute; left: 20px; top: 0; bottom: 0;
    width: 3px; background: linear-gradient(to bottom, var(--teal-100), var(--teal-40));
    border-radius: 2px;
}
.timeline-item {
    position: relative; padding-left: 56px; margin-bottom: 36px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
    position: absolute; left: 10px; top: 6px;
    width: 24px; height: 24px; border-radius: 50%;
    background: var(--teal-100); border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(10,130,118,0.3);
}
.timeline-dot.current { animation: pulse 2s infinite; }
.timeline-date {
    font-size: 12px; font-weight: 700; color: var(--teal-100);
    text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px;
}
.timeline-item h4 {
    font-size: 17px; font-weight: 700; color: #222; margin-bottom: 4px;
}
.timeline-item p {
    font-size: 14px; color: #666; margin: 0; line-height: 1.6;
}

/* ── Contact ── */
.contact-grid {
    display: flex; justify-content: center; flex-wrap: wrap;
    gap: 12px; max-width: 600px; margin: 0 auto 32px;
}
.contact-card {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: 24px;
    background: #fff; border: 1px solid #eaedf0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    text-decoration: none; color: #333;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    border-color: var(--teal-100);
}
.contact-icon {
    width: 32px; height: 32px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px;
    transition: transform 0.3s ease;
}
.contact-card:hover .contact-icon { transform: scale(1.1); }
.ci-email    { background: #fce4ec; }
.ci-whatsapp { background: #e8f5e9; }
.ci-github   { background: #eceff1; }
.ci-linkedin { background: #e3f2fd; }
.contact-card { cursor: pointer; }
.contact-card-label {
    font-size: 13px; font-weight: 700; color: #222;
}
.contact-card-sub { display: none; }

/* ── Contact Popup ── */
.popup-overlay {
    display: none; position: fixed; inset: 0; z-index: 1000;
    background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
    align-items: center; justify-content: center;
    padding: 20px;
}
.popup-overlay.active { display: flex; }
.popup-card {
    background: #fff; border-radius: 20px; padding: 40px 32px 32px;
    max-width: 380px; width: 100%; text-align: center;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
    animation: popupIn 0.3s ease;
}
@keyframes popupIn {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.popup-close {
    position: absolute; top: 12px; right: 16px;
    background: none; border: none; font-size: 28px;
    color: #999; cursor: pointer; line-height: 1;
    transition: color 0.2s ease;
}
.popup-close:hover { color: #333; }
.popup-icon {
    width: 64px; height: 64px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 30px; margin: 0 auto 16px;
}
.popup-title {
    font-size: 20px; font-weight: 800; color: #1a1a1a; margin-bottom: 6px;
}
.popup-detail {
    font-size: 14px; color: #666; margin-bottom: 24px; word-break: break-all;
}
.popup-actions {
    display: flex; flex-direction: column; gap: 10px;
}
.popup-btn {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 24px; border-radius: 12px; border: none;
    font-size: 15px; font-weight: 700; text-decoration: none;
    cursor: pointer; transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.popup-btn:hover {
    transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.12);
}
.popup-btn-primary {
    background: linear-gradient(135deg, var(--teal-dark), var(--teal-100));
    color: #fff;
}
.popup-btn-secondary {
    background: #f4f6f8; color: #333; border: 1px solid #e0e4e8;
}
.popup-btn-copy {
    background: #fff3e0; color: #e65100;
}
.contact-location {
    display: flex; align-items: center; justify-content: center; gap: 12px;
    flex-wrap: wrap;
    margin-top: 8px; padding: 16px 28px;
    background: linear-gradient(135deg, var(--teal-dark), var(--teal-100));
    border-radius: 12px; max-width: 520px; margin-left: auto; margin-right: auto;
    color: #fff; font-size: 14px; font-weight: 600;
    letter-spacing: 0.3px;
}
.contact-location .loc-dot {
    width: 5px; height: 5px; border-radius: 50%;
    background: rgba(255,255,255,0.5);
}

@media (max-width: 768px) {
    .contact-grid { gap: 10px; }
    .contact-location { font-size: 13px; padding: 14px 20px; }
}
.header-contact {
    display: flex; align-items: center; gap: 16px;
}
.header-contact a {
    color: #555; text-decoration: none; font-weight: 600; font-size: 12px;
    text-transform: uppercase; letter-spacing: 0.5px;
    transition: color 0.3s ease;
}
.header-contact a:hover { color: var(--teal-100); }

/* ── Footer ── */
.footer {
    text-align: center; padding: 40px;
    background: linear-gradient(135deg, var(--teal-dark) 0%, #0a6b60 100%);
    color: #fff; font-size: 14px; position: relative;
}
.footer::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(to right, var(--teal-40), var(--teal-100), var(--teal-40));
}
.footer-tagline { font-size: 16px; font-weight: 600; margin-bottom: 8px; opacity: 0.95; }
.footer-meta { opacity: 0.6; font-size: 13px; }

/* ── Automation CTA Banner ── */
.auto-cta-banner {
    display: flex; align-items: center; gap: 16px;
    background: linear-gradient(135deg, #e8f5e9, #f1f8e9);
    border: 1px solid #c8e6c9; border-left: 4px solid #2e7d32;
    border-radius: 12px; padding: 18px 24px;
    margin: 28px 0 0; position: relative;
    animation: slideInBanner 0.6s ease;
}
@keyframes slideInBanner {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.auto-cta-icon { font-size: 32px; flex-shrink: 0; }
.auto-cta-text { flex: 1; font-size: 14px; color: #333; line-height: 1.6; }
.auto-cta-text strong { color: #1b5e20; }
.auto-cta-text span { color: #555; }
.auto-cta-btn {
    display: inline-flex; align-items: center;
    padding: 10px 22px; border-radius: 8px;
    background: linear-gradient(135deg, var(--teal-dark), var(--teal-100));
    color: #fff; font-weight: 700; font-size: 13px;
    text-decoration: none; white-space: nowrap;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    letter-spacing: 0.3px;
}
.auto-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }
.auto-cta-close {
    position: absolute; top: 8px; right: 12px;
    background: none; border: none; font-size: 20px;
    color: #999; cursor: pointer; line-height: 1;
}
.auto-cta-close:hover { color: #333; }

@media (max-width: 768px) {
    .auto-cta-banner { flex-direction: column; text-align: center; gap: 12px; padding: 16px; }
    .auto-cta-btn { width: 100%; justify-content: center; }
}

/* ── Floating Contact FAB ── */
.fab-container {
    position: fixed; bottom: 24px; right: 24px;
    display: flex; flex-direction: column; gap: 12px;
    z-index: 90;
}
.fab {
    width: 50px; height: 50px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
}
.fab:hover { transform: scale(1.12); box-shadow: 0 6px 24px rgba(0,0,0,0.3); }
.fab-wa { background: #25D366; }
.fab-email { background: #ea4335; }
.fab-li { background: #0077b5; }

@media (max-width: 768px) {
    .fab-container { bottom: 16px; right: 16px; gap: 10px; }
    .fab { width: 44px; height: 44px; }
    .fab svg { width: 20px; height: 20px; }
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .about-grid { grid-template-columns: 1fr; }
    .projects-grid { grid-template-columns: 1fr; }
    .hero-kpi-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .sticky-header { padding: 10px 20px; height: 60px; }
    .nav-links { display: none; }
    .header-contact { display: none; }
    .menu-toggle { display: block; }
    .nav-links.active {
        display: flex; flex-direction: column;
        position: absolute; top: 60px; left: 0; right: 0;
        background: #fff; padding: 20px; gap: 16px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    }
    .hero { padding: 70px 20px 60px; }
    .hero h1 { font-size: 32px; }
    .hero-tagline { font-size: 18px; }
    .container { padding: 40px 20px; }
    .section-header h2 { font-size: 28px; }
    .profile-image { width: 120px; height: 120px; }
}