:root {
    --bg: #07111f;
    --bg-soft: #0d1b2f;
    --surface: rgba(255, 255, 255, 0.08);
    --surface-strong: rgba(255, 255, 255, 0.14);
    --text: #f8fafc;
    --muted: #a9b6ca;
    --primary: #38bdf8;
    --primary-dark: #0284c7;
    --accent: #f59e0b;
    --line: rgba(255, 255, 255, 0.14);
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
    --radius: 24px;
    --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-height: 100vh;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 20% 0%, rgba(56, 189, 248, 0.18), transparent 28rem),
        radial-gradient(circle at 90% 10%, rgba(245, 158, 11, 0.16), transparent 24rem),
        linear-gradient(135deg, #06101d 0%, #0a1628 55%, #07111f 100%);
}

a { color: inherit; text-decoration: none; }
p { color: var(--muted); line-height: 1.75; }
main { overflow: hidden; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    width: min(100% - 2rem, var(--max));
    margin: 0 auto;
    padding: 1rem 0;
    backdrop-filter: blur(18px);
}

.brand { display: flex; align-items: center; gap: .75rem; font-weight: 800; }
.brand-mark {
    display: grid; place-items: center;
    width: 46px; height: 46px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #07111f;
    box-shadow: 0 14px 40px rgba(56, 189, 248, .25);
}

.main-nav { display: flex; align-items: center; gap: .4rem; }
.main-nav a {
    padding: .75rem 1rem;
    color: var(--muted);
    border-radius: 999px;
    transition: .2s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--text); background: var(--surface); }
.nav-cta { border: 1px solid var(--line); }

.menu-toggle { display: none; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: .65rem; }
.menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px; background: var(--text); }

.section, .hero, .page-hero { width: min(100% - 2rem, var(--max)); margin: 0 auto; }
.hero { min-height: calc(100vh - 80px); display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; padding: 5rem 0; }
.hero h1, .page-hero h1 { font-size: clamp(2.5rem, 6vw, 5.7rem); line-height: .95; letter-spacing: -.06em; margin: 0; }
.hero-lead, .page-hero p { max-width: 760px; font-size: 1.18rem; }
.eyebrow { color: var(--primary); text-transform: uppercase; font-weight: 800; letter-spacing: .18em; font-size: .78rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin: 2rem 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 1.25rem; border-radius: 999px; font-weight: 800; border: 1px solid var(--line); cursor: pointer; }
.btn.primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #04111f; border: 0; }
.btn.secondary { background: var(--surface); color: var(--text); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
.stats article, .card, .profile-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.stats article { padding: 1rem; }
.stats strong { display: block; font-size: 1.6rem; color: var(--text); }
.stats span { color: var(--muted); font-size: .9rem; }
.profile-card { padding: 2rem; transform: rotate(1.5deg); }
.avatar { display: grid; place-items: center; width: 110px; height: 110px; border-radius: 32px; background: linear-gradient(135deg, var(--primary), var(--accent)); color: #07111f; font-size: 2rem; font-weight: 900; margin-bottom: 1.5rem; }
.check-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.check-list li { color: var(--muted); margin: .7rem 0; padding-left: 1.8rem; position: relative; }
.check-list li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: 900; }
.check-list.compact { margin-top: 1rem; }

.section { padding: 5rem 0; }
.section.soft { width: 100%; max-width: none; padding-inline: max(1rem, calc((100vw - var(--max)) / 2)); background: rgba(255,255,255,.035); }
.section-heading { margin-bottom: 2rem; }
.section-heading h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -.04em; }
.cards-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.cards-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card { padding: 1.6rem; }
.card h2, .card h3 { margin-top: 0; }
.skill-card.large { min-height: 220px; }
.tags { display: flex; flex-wrap: wrap; gap: .65rem; }
.tags span { padding: .55rem .8rem; border-radius: 999px; background: rgba(56,189,248,.11); border: 1px solid rgba(56,189,248,.22); color: #dff7ff; }
.project-card span { color: var(--accent); font-weight: 800; font-size: .85rem; }
.text-link { color: var(--primary); font-weight: 800; }
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 1.25rem; align-items: stretch; }
.image-placeholder { min-height: 360px; display: grid; place-items: center; border-radius: var(--radius); background: linear-gradient(135deg, rgba(56,189,248,.24), rgba(245,158,11,.19)), var(--surface); border: 1px solid var(--line); font-weight: 900; text-align: center; font-size: clamp(1.8rem, 4vw, 3rem); }
.text-card { display: flex; flex-direction: column; justify-content: center; }
.page-hero { padding: 6rem 0 2rem; }
.timeline { display: grid; gap: 1.2rem; }
.timeline-item { position: relative; }
.timeline-item span { color: var(--primary); font-weight: 800; }
.contact-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 1.25rem; align-items: start; }
.contact-card a { color: var(--primary); }
.contact-form { display: grid; gap: 1rem; }
.contact-form label { display: grid; gap: .45rem; color: var(--muted); }
input, textarea { width: 100%; border: 1px solid var(--line); background: rgba(255,255,255,.07); color: var(--text); border-radius: 16px; padding: .95rem 1rem; font: inherit; }
input:focus, textarea:focus { outline: 2px solid rgba(56,189,248,.45); }
.form-note { font-size: .9rem; }
.site-footer { width: min(100% - 2rem, var(--max)); margin: 0 auto; padding: 3rem 0; display: grid; grid-template-columns: 1fr auto auto; gap: 2rem; border-top: 1px solid var(--line); }
.footer-links, .footer-socials { display: grid; gap: .55rem; }
.site-footer a { color: var(--muted); }
.site-footer small { grid-column: 1 / -1; color: var(--muted); }
.reveal { animation: rise .7s ease both; }
.delay-1 { animation-delay: .15s; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }

@media (max-width: 900px) {
    .menu-toggle { display: block; }
    .main-nav { position: absolute; inset: 72px 0 auto 0; display: none; flex-direction: column; align-items: stretch; padding: 1rem; background: rgba(7,17,31,.95); border: 1px solid var(--line); border-radius: 22px; }
    .main-nav.open { display: flex; }
    .hero, .about-grid, .contact-layout { grid-template-columns: 1fr; }
    .hero { min-height: auto; padding-top: 3rem; }
    .cards-grid, .cards-grid.three, .cards-grid.two { grid-template-columns: 1fr; }
    .site-footer { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
    .stats { grid-template-columns: 1fr; }
    .hero h1, .page-hero h1 { font-size: 2.55rem; }
    .section { padding: 3rem 0; }
    .profile-card { transform: none; }
}

/* Experiences page */
.experience-hero { position: relative; }
.experience-summary { padding-top: 2rem; padding-bottom: 2rem; }
.stat-card strong { display: block; font-size: 2.2rem; line-height: 1; color: var(--text); margin-bottom: .6rem; }
.stat-card span { color: var(--muted); }
.experience-timeline {
    position: relative;
    display: grid;
    gap: 2rem;
    padding-top: 2rem;
}
.experience-timeline::before {
    content: '';
    position: absolute;
    top: 2rem;
    bottom: 5rem;
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(to bottom, transparent, rgba(56,189,248,.75), rgba(245,158,11,.55), transparent);
}
.experience-card {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: start;
}
.experience-card.left .experience-content { grid-column: 1; }
.experience-card.right .experience-content { grid-column: 2; }
.experience-marker {
    position: absolute;
    top: 2rem;
    left: 50%;
    width: 18px;
    height: 18px;
    transform: translateX(-50%);
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 0 0 8px rgba(56,189,248,.12), 0 0 36px rgba(56,189,248,.35);
}
.experience-content {
    position: relative;
    overflow: hidden;
}
.experience-content::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.experience-topline {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.2rem;
}
.experience-topline img {
    max-width: 110px;
    max-height: 42px;
    object-fit: contain;
    background: rgba(255,255,255,.9);
    padding: .35rem .5rem;
    border-radius: 12px;
}
.period {
    color: var(--primary);
    font-weight: 900;
    font-size: .9rem;
}
.experience-content h2 {
    margin: 0;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
}
.experience-content h3 {
    margin: .45rem 0 0;
    color: var(--accent);
    font-size: 1rem;
}
.company-link {
    display: inline-flex;
    margin-top: 1.4rem;
}
@media (max-width: 900px) {
    .experience-timeline::before { left: 9px; }
    .experience-card { grid-template-columns: 1fr; gap: 1rem; padding-left: 2rem; }
    .experience-card.left .experience-content,
    .experience-card.right .experience-content { grid-column: 1; }
    .experience-marker { left: 9px; }
}
@media (max-width: 620px) {
    .experience-topline { align-items: flex-start; flex-direction: column; }
    .experience-topline img { max-width: 96px; }
}

/* Realizations page */
.realizations-hero h1 { max-width: 980px; }
.realization-summary { padding-top: 2rem; padding-bottom: 2rem; }
.realizations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
.realization-card {
    display: grid;
    grid-template-columns: minmax(240px, .85fr) 1.4fr;
    gap: 1.5rem;
    padding: 1rem;
    overflow: hidden;
}
.realization-media {
    min-height: 280px;
    border-radius: calc(var(--radius) - 8px);
    background: linear-gradient(135deg, rgba(56,189,248,.18), rgba(245,158,11,.16));
    border: 1px solid var(--line);
    display: grid;
    place-items: center;
    overflow: hidden;
}
.realization-media img {
    width: 100%;
    height: 100%;
    min-height: 280px;
    object-fit: cover;
    display: block;
}
.realization-media span {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
}
.realization-content { padding: .8rem .8rem .8rem 0; }
.realization-content h2 {
    margin: .75rem 0 .5rem;
    font-size: clamp(1.7rem, 3vw, 2.6rem);
    letter-spacing: -.04em;
}
.realization-content h3 {
    margin-top: 1.4rem;
    color: var(--accent);
}
.realization-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}
.realization-meta span {
    color: var(--accent);
    font-weight: 800;
    font-size: .82rem;
    border: 1px solid rgba(245,158,11,.26);
    background: rgba(245,158,11,.08);
    border-radius: 999px;
    padding: .45rem .7rem;
}
.compact-tags { margin-top: 1.5rem; }
.compact-tags span { font-size: .82rem; padding: .45rem .65rem; }
@media (max-width: 900px) {
    .realization-card { grid-template-columns: 1fr; }
    .realization-content { padding: .4rem; }
}
@media (max-width: 620px) {
    .realization-card { padding: .8rem; }
    .realization-media, .realization-media img { min-height: 210px; }
}

/* Skills page */
.skills-hero h1 { max-width: 980px; }
.skills-summary { padding-top: 2rem; padding-bottom: 2rem; }
.skills-intro-grid {
    width: min(100% - 2rem, var(--max));
    margin: 0 auto;
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 1.25rem;
    align-items: stretch;
}
.skills-visual {
    min-height: 420px;
    position: relative;
    overflow: hidden;
}
.skills-visual::after {
    content: '';
    position: absolute;
    inset: 18px;
    border: 1px solid rgba(255,255,255,.18);
    border-radius: calc(var(--radius) - 6px);
}
.skills-visual span {
    position: relative;
    z-index: 1;
    line-height: 1.05;
}
.skills-dashboard {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
}
.skill-panel {
    position: relative;
    overflow: hidden;
}
.skill-panel::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.skill-panel h2 {
    margin-bottom: 1.4rem;
}
.skill-bars {
    display: grid;
    gap: 1.15rem;
}
.skill-row {
    display: grid;
    gap: .45rem;
}
.skill-row-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.skill-row-head span {
    color: var(--primary);
    font-weight: 900;
}
.skill-track {
    height: 12px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255,255,255,.09);
    border: 1px solid rgba(255,255,255,.12);
}
.skill-track span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    box-shadow: 0 0 24px rgba(56,189,248,.25);
}
.skill-row small {
    color: var(--muted);
    line-height: 1.5;
}
.language-card p {
    margin: 0;
    color: var(--text);
    font-weight: 800;
}
.skills-actions {
    margin-top: 2rem;
}
@media (max-width: 900px) {
    .skills-intro-grid,
    .skills-dashboard { grid-template-columns: 1fr; }
    .skills-visual { min-height: 300px; }
}


/* Contact page */
.contact-hero {
    position: relative;
}
.contact-intro {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
}
.contact-highlight {
    position: relative;
    overflow: hidden;
}
.contact-highlight::before,
.enhanced-contact .card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}
.contact-icon {
    display: grid;
    place-items: center;
    width: 54px;
    height: 54px;
    margin-bottom: 1.2rem;
    border-radius: 18px;
    color: #06101d;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    box-shadow: 0 18px 42px rgba(56,189,248,.22);
}
.enhanced-contact .card {
    position: relative;
    overflow: hidden;
}
.contact-details h2,
.modern-form h2 {
    margin-top: 0;
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    letter-spacing: -.04em;
}
.contact-list {
    display: grid;
    gap: .9rem;
    margin: 1.5rem 0 2rem;
}
.contact-line {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: .15rem 1rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255,255,255,.045);
}
.contact-line span {
    grid-row: span 2;
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    border-radius: 16px;
    background: rgba(56,189,248,.13);
    color: var(--primary);
    font-weight: 900;
}
.contact-line strong {
    color: var(--text);
}
.contact-line em {
    color: var(--muted);
    font-style: normal;
    word-break: break-word;
}
.social-box {
    padding-top: 1.25rem;
    border-top: 1px solid var(--line);
}
.social-box h3 {
    margin-top: 0;
}
.social-pills {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
}
.social-pills a {
    padding: .65rem .9rem;
    border-radius: 999px;
    background: rgba(56,189,248,.11);
    border: 1px solid rgba(56,189,248,.22);
    color: #dff7ff;
    font-weight: 800;
}
.modern-form {
    gap: 1.15rem;
}
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}
.modern-form label,
.source-fieldset {
    display: grid;
    gap: .5rem;
    color: var(--muted);
    font-weight: 700;
}
select,
input,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    background: rgba(255,255,255,.07);
    color: var(--text);
    border-radius: 16px;
    padding: .95rem 1rem;
    font: inherit;
}
select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--primary) 50%), linear-gradient(135deg, var(--primary) 50%, transparent 50%);
    background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%;
    background-size: 6px 6px, 6px 6px;
    background-repeat: no-repeat;
}
select option {
    color: #07111f;
}
.source-fieldset {
    border: 1px solid var(--line);
    border-radius: 20px;
    padding: 1rem;
}
.source-fieldset legend {
    padding: 0 .5rem;
    color: var(--text);
    font-weight: 900;
}
.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
}
.checkbox-group label {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .6rem .8rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255,255,255,.045);
    cursor: pointer;
}
.checkbox-group input {
    width: auto;
    accent-color: var(--primary);
}
.error-message,
.hint {
    font-size: .85rem;
    font-weight: 600;
}
.error-message {
    display: none;
    color: #fca5a5;
}
.hint {
    color: var(--muted);
}
.modern-form .has-error input,
.modern-form .has-error textarea,
.modern-form .has-error select {
    border-color: rgba(248,113,113,.85);
    outline: 2px solid rgba(248,113,113,.22);
}
.modern-form .has-error .error-message {
    display: block;
}
.form-note.success {
    color: #86efac;
}
.form-note.error {
    color: #fca5a5;
}
@media (max-width: 900px) {
    .contact-intro { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
    .form-grid { grid-template-columns: 1fr; }
    .checkbox-group { display: grid; }
}


.experience-missions {
    margin: 1rem 0 1.1rem;
    padding-left: 1.2rem;
    color: var(--muted);
}

.experience-missions li {
    margin-bottom: .45rem;
}