/* ---------- Base styles ---------- */

:root {
    --background: #0b1020;
    --surface: #11182a;
    --surface-light: #171f35;
    --text: #f5f7ff;
    --muted: #a0abc3;
    --purple: #a78bfa;
    --cyan: #67e8f9;
    --border: rgba(255, 255, 255, 0.09);
    --gradient: linear-gradient(110deg, #a78bfa, #e879f9, #67e8f9);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    background:
        radial-gradient(
            ellipse at 80% 10%,
            rgba(124, 58, 237, 0.12),
            transparent 35%
        ),
        var(--background);
    color: var(--text);
    font-family: "Inter", sans-serif;
    line-height: 1.7;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.section-container {
    width: min(1120px, calc(100% - 48px));
    margin-inline: auto;
}

/* ---------- Navigation ---------- */

.navbar {
    width: min(1120px, calc(100% - 48px));
    margin: 0 auto;
    min-height: 88px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
}

.logo {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -2px;
}

.logo span {
    color: #c084fc;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.88rem;
    color: var(--muted);
    transition: color 0.25s ease;
}

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

.nav-links .nav-contact {
    padding: 10px 17px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
}

/* ---------- Hero section ---------- */

.hero {
    min-height: 650px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 64px;
    padding-top: 64px;
    padding-bottom: 80px;
}

.availability {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.025);
    font-size: 0.78rem;
    color: #d2d8e9;
    margin-bottom: 28px;
}

.status-dot,
.card-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #a78bfa;
    box-shadow: 0 0 12px #a78bfa;
}

.eyebrow {
    color: var(--purple);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.hero h1 {
    max-width: 650px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(3.1rem, 6vw, 5.3rem);
    line-height: 1.06;
    letter-spacing: -4px;
    margin-bottom: 25px;
}

.gradient-text {
    color: #c084fc;
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    max-width: 510px;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.9;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 13px 20px;
    border-radius: 11px;
    font-size: 0.9rem;
    font-weight: 600;
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

.button:hover {
    transform: translateY(-3px);
}

.button-primary {
    color: #100d20;
    background: var(--gradient);
    box-shadow: 0 8px 28px rgba(124, 58, 237, 0.15);
}

.button-primary:hover {
    box-shadow: 0 10px 35px rgba(168, 85, 247, 0.3);
}

.button-secondary {
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.025);
}

.social-links {
    display: flex;
    gap: 24px;
    margin-top: 35px;
}

.social-links a {
    color: var(--muted);
    font-size: 0.85rem;
}

.social-links a:hover {
    color: var(--cyan);
}

/* ---------- Hero profile card ---------- */

.hero-visual {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 420px;
    isolation: isolate;
}

.glow {
    position: absolute;
    z-index: -1;
    width: 210px;
    height: 210px;
    border-radius: 50%;
    filter: blur(85px);
    opacity: 0.48;
}

.glow-one {
    top: 5%;
    right: 2%;
    background: #7c3aed;
}

.glow-two {
    bottom: 5%;
    left: 3%;
    background: #0891b2;
}

.profile-card {
    width: min(100%, 370px);
    position: relative;
    padding: 34px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 24px;
    background: linear-gradient(
        145deg,
        rgba(30, 39, 65, 0.95),
        rgba(15, 20, 38, 0.94)
    );
    box-shadow: 0 30px 100px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

.card-top {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 0.67rem;
    letter-spacing: 1.6px;
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    margin: 34px 0 24px;
    display: grid;
    place-items: center;
    border-radius: 26px;
    background: var(--gradient);
    color: #151126;
    font-family: "Space Grotesk", sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
}

.profile-card h2 {
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.75rem;
    letter-spacing: -1px;
}

.profile-card > p {
    color: var(--muted);
    font-size: 0.88rem;
    margin-top: 16px;
}

.card-tags,
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 22px;
}

.card-tags span,
.project-tags span {
    padding: 5px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: #cbd5e1;
    font-size: 0.72rem;
}

.card-decoration {
    position: absolute;
    top: 20px;
    right: 25px;
    color: #c084fc;
    font-size: 2rem;
}

/* ---------- Content sections ---------- */

.content-section {
    padding-top: 100px;
    padding-bottom: 45px;
}

.section-title {
    max-width: 700px;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(2rem, 4vw, 3.3rem);
    line-height: 1.2;
    letter-spacing: -1.5px;
}

.section-description {
    max-width: 720px;
    color: var(--muted);
    margin-top: 22px;
    line-height: 1.9;
}

.section-heading-row {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 24px;
    margin-bottom: 35px;
}

.section-number {
    color: #7f8ba5;
    font-size: 0.75rem;
    letter-spacing: 1px;
}

/* ---------- Project cards ---------- */

.project-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.project-card {
    padding: 20px;
    border: 1px solid var(--border);
    border-radius: 19px;
    background: rgba(255, 255, 255, 0.025);
    transition:
        transform 0.3s ease,
        border-color 0.3s ease,
        background 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(192, 132, 252, 0.4);
    background: rgba(255, 255, 255, 0.045);
}

.project-visual {
    min-height: 155px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 13px;
    margin-bottom: 24px;
}

.project-purple .project-visual {
    background: linear-gradient(135deg, #3b2674, #171c40);
}

.project-cyan .project-visual {
    background: linear-gradient(135deg, #164e63, #172345);
}

.project-pink .project-visual {
    background: linear-gradient(135deg, #702c70, #272044);
}

.project-icon {
    font-size: 4rem;
    color: #f5f3ff;
}

.project-index {
    align-self: start;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8rem;
}

.project-category {
    color: var(--purple);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.project-card h3 {
    margin-top: 10px;
    font-family: "Space Grotesk", sans-serif;
    font-size: 1.2rem;
    line-height: 1.4;
}

.project-card > p:not(.project-category) {
    margin-top: 12px;
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.8;
}

.project-status {
    display: inline-block;
    margin-top: 20px;
    color: var(--cyan);
    font-size: 0.75rem;
}


/* ---------- Skills ---------- */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 35px;
}

.skill-item {
    padding: 25px;
    border: 1px solid var(--border);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.025);
}

.skill-item > span {
    color: var(--purple);
    font-size: 0.75rem;
}

.skill-item h3 {
    margin-top: 20px;
    font-family: "Space Grotesk", sans-serif;
}

.skill-item p {
    margin-top: 8px;
    color: var(--muted);
    font-size: 0.85rem;
}

/* ---------- Contact ---------- */

.contact-section {
    padding-top: 115px;
    padding-bottom: 100px;
}

.contact-card {
    padding: 65px 35px;
    text-align: center;
    border: 1px solid var(--border);
    border-radius: 24px;
    background:
        radial-gradient(
            ellipse at 50% 100%,
            rgba(124, 58, 237, 0.2),
            transparent 60%
        ),
        var(--surface);
}

.contact-card h2 {
    max-width: 700px;
    margin: 0 auto;
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    line-height: 1.2;
    letter-spacing: -2px;
}

.contact-card > p:not(.eyebrow) {
    max-width: 550px;
    margin: 20px auto 28px;
    color: var(--muted);
}

/* ---------- Footer ---------- */

.footer {
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.8rem;
}

.footer .logo {
    color: var(--text);
    font-size: 1.5rem;
}

.footer a:last-child:hover {
    color: var(--cyan);
}

/* ---------- Animations ---------- */

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }

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

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation: none !important;
        transition: none !important;
    }
}

/* ---------- Responsive design ---------- */

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-top: 70px;
    }

    .hero-content {
        max-width: 700px;
    }

    .hero-visual {
        min-height: 390px;
    }

    .project-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

@media (max-width: 600px) {
    .section-container,
    .navbar {
        width: calc(100% - 32px);
    }

    .navbar {
        min-height: 75px;
    }

    .nav-links {
        gap: 14px;
    }

    .nav-links a {
        font-size: 0.75rem;
    }

    .nav-links a:nth-child(2),
    .nav-links a:nth-child(4) {
        display: none;
    }

    .nav-links .nav-contact {
        padding: 8px 10px;
    }

    .hero {
        min-height: auto;
        padding-top: 65px;
        padding-bottom: 45px;
    }

    .hero h1 {
        font-size: clamp(3rem, 12vw, 4rem);
        letter-spacing: -2.5px;
    }

    .hero-description {
        font-size: 0.93rem;
    }

    .hero-visual {
        min-height: 360px;
    }

    .profile-card {
        padding: 25px;
    }

    .content-section {
        padding-top: 65px;
    }

    .section-heading-row {
        align-items: start;
        flex-direction: column;
    }

    .project-grid,
    .skills-grid {
        grid-template-columns: 1fr;
    }

    .project-card:last-child {
        grid-column: auto;
    }

    .project-visual {
        min-height: 130px;
    }

    .contact-section {
        padding-top: 75px;
        padding-bottom: 65px;
    }

    .contact-card {
        padding: 45px 20px;
    }

    .footer {
        padding-top: 25px;
        padding-bottom: 25px;
        flex-wrap: wrap;
    }
}

/* Theme and menu buttons */

.theme-toggle,
.menu-toggle {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 42px;
    min-height: 42px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    font-size: 1.1rem;
}

.menu-toggle {
    display: none;
}

/* Scroll reveal */

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity 0.65s ease,
        transform 0.65s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Light theme */

html[data-theme="light"] {
    --background: #f7f7fc;
    --surface: #ffffff;
    --surface-light: #efedfa;
    --text: #17152a;
    --muted: #5f6478;
    --border: rgba(25, 20, 50, 0.13);
}

html[data-theme="light"] body {
    background:
        radial-gradient(
            ellipse at 80% 10%,
            rgba(124, 58, 237, 0.10),
            transparent 35%
        ),
        var(--background);
}

html[data-theme="light"] .profile-card {
    background: linear-gradient(145deg, #ffffff, #efedfa);
}

html[data-theme="light"] .card-tags span,
html[data-theme="light"] .project-tags span {
    color: #48445e;
}

html[data-theme="light"] .availability,
html[data-theme="light"] .project-card,
html[data-theme="light"] .skill-item,
html[data-theme="light"] .button-secondary {
    background: rgba(255, 255, 255, 0.75);
}

html[data-theme="light"] .contact-card {
    background:
        radial-gradient(
            ellipse at 50% 100%,
            rgba(124, 58, 237, 0.12),
            transparent 60%
        ),
        var(--surface);
}

html[data-theme="light"] .card-top,
html[data-theme="light"] .availability {
    color: var(--muted);
}

/* Responsive menu */

@media (max-width: 600px) {
    .navbar {
        position: relative;
        flex-wrap: wrap;
    }

    .menu-toggle {
        display: inline-flex;
        margin-left: auto;
    }

    .nav-links {
        display: none;
        position: absolute;
        z-index: 10;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        padding: 18px;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        border: 1px solid var(--border);
        border-radius: 14px;
        background: var(--surface);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a,
    .nav-links a:nth-child(2),
    .nav-links a:nth-child(4) {
        display: block;
        padding: 10px;
    }

    .nav-links .nav-contact {
        text-align: center;
    }

    .nav-links .theme-toggle {
        align-self: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}
.avatar-placeholder {
    width: 150px;
    height: 150px;
    margin: 24px auto;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(139, 92, 246, 0.8);
    background: var(--surface);
}

.profile-photo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}
/* Organizations & Leadership Cards */
.organization-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
    margin-top: 32px;
}

.organization-card {
    padding: 28px;
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 18px;
    background: linear-gradient(
        145deg,
        rgba(139, 92, 246, 0.10),
        rgba(6, 182, 212, 0.04)
    );
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.organization-card:hover {
    transform: translateY(-6px);
    border-color: #8b5cf6;
}

.organization-card h3 {
    margin: 12px 0;
}

.organization-card .organization-name {
    font-weight: 600;
    margin-bottom: 14px;
}

.organization-card .project-category {
    color: #a78bfa;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

@media (max-width: 700px) {
    .organization-grid {
        grid-template-columns: 1fr;
    }

    .organization-card {
        padding: 22px;
    }
}