:root {
    --black: #0a0a0a;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e8e8e8;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --font-heading: 'Quicksand', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 22px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.07), 0 4px 10px rgba(0, 0, 0, 0.03);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.09), 0 6px 16px rgba(0, 0, 0, 0.04);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-out-back: cubic-bezier(0.34, 1.56, 0.64, 1);
    --space-xs: 0.4rem;
    --space-sm: 0.75rem;
    --space-md: 1.25rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    scroll-padding-top: 5rem;
}

body {
    font-family: var(--font-body);
    background: var(--white);
    color: var(--black);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-tap-highlight-color: transparent;
    -webkit-overflow-scrolling: touch;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    -webkit-tap-highlight-color: transparent;
}

img {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.25rem;
    width: 100%;
}

@media (min-width: 640px) {
    .container {
        padding: 0 2rem;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 2.5rem;
    }
}

.section {
    padding: 5rem 0;
    position: relative;
}

@media (min-width: 640px) {
    .section {
        padding: 6.5rem 0;
    }
}

@media (min-width: 1024px) {
    .section {
        padding: 8rem 0;
    }
}

.section-label {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--gray-400);
    margin-bottom: 0.6rem;
    display: inline-block;
}

@media (min-width: 640px) {
    .section-label {
        font-size: 0.75rem;
    }
}

.section-title {
    font-size: 1.75rem;
    line-height: 1.18;
    margin-bottom: 0.9rem;
    font-weight: 700;
    color: var(--black);
}

@media (min-width: 640px) {
    .section-title {
        font-size: 2.15rem;
    }
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .section-title {
        font-size: 2.85rem;
    }
}

.section-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    max-width: 540px;
    line-height: 1.75;
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .section-desc {
        font-size: 0.95rem;
    }
}

/* INTRO OVERLAY */
#intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    transition: opacity 0.6s var(--ease-out-expo);
}

#intro-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.intro-logo {
    width: 110px;
    height: 110px;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.85s var(--ease-out-back);
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 640px) {
    .intro-logo {
        width: 150px;
        height: 150px;
    }
}

.intro-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.intro-logo.revealed {
    opacity: 1;
    transform: scale(1);
}

.intro-loader {
    margin-top: 1.6rem;
    width: 80px;
    height: 2px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.intro-loader.revealed {
    opacity: 1;
}

.intro-loader-bar {
    height: 100%;
    width: 0%;
    background: var(--black);
    border-radius: 3px;
    transition: width 1.6s var(--ease-out-expo);
}

/* NAV */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 0.85rem 0;
    background: transparent;
    transition: all 0.4s var(--ease-out-expo);
    transform: translateY(-100%);
}

.nav.active {
    transform: translateY(0);
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(20px) saturate(170%);
    -webkit-backdrop-filter: blur(20px) saturate(170%);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
    padding: 0.5rem 0;
}

.nav.nav-light .nav-logo {
    color: #fff;
}

.nav.nav-light .nav-logo img {
    filter: brightness(0) invert(1);
}

.nav.nav-light .nav-links a {
    color: rgba(255, 255, 255, 0.78);
}

.nav.nav-light .nav-links a:hover {
    color: #fff;
}

.nav.nav-light .nav-links a::after {
    background: #fff;
}

.nav.nav-light .burger-line {
    background: #fff;
}

.nav.nav-dark .nav-logo {
    color: var(--black);
}

.nav.nav-dark .nav-logo img {
    filter: none;
}

.nav.nav-dark .nav-links a {
    color: var(--gray-600);
}

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

.nav.nav-dark .nav-links a::after {
    background: var(--black);
}

.nav.nav-dark .burger-line {
    background: var(--black);
}

.nav-logo,
.nav-logo img,
.nav-links a,
.burger-line {
    transition: color 0.35s ease, filter 0.35s ease, background 0.35s ease;
}

.nav-container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

@media (min-width: 640px) {
    .nav-container {
        padding: 0 2rem;
    }
}

@media (min-width: 1024px) {
    .nav-container {
        padding: 0 2.5rem;
    }
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--black);
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.5s var(--ease-out-expo), color 0.35s ease;
}

.nav-logo img {
    width: 26px;
    height: 26px;
    display: block;
    border-radius: 5px;
}

.nav-logo.visible {
    opacity: 1;
    transform: translateX(0);
}

.nav-links {
    display: none;
    gap: 1.75rem;
    list-style: none;
    align-items: center;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.82rem;
    color: var(--gray-600);
    transition: color 0.25s ease;
    position: relative;
    padding: 0.25rem 0;
    letter-spacing: -0.01em;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--black);
    border-radius: 1px;
    transition: width 0.35s var(--ease-out-expo);
}

.nav-links a:hover::after {
    width: 100%;
}

.burger-btn {
    display: flex;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.4rem;
    z-index: 1001;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    transition: background 0.2s ease;
}

.burger-btn:active {
    background: rgba(128, 128, 128, 0.1);
}

@media (min-width: 768px) {
    .burger-btn {
        display: none;
    }
}

.burger-lines {
    position: relative;
    width: 19px;
    height: 13px;
}

.burger-line {
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--black);
    border-radius: 2px;
    transition: all 0.35s var(--ease-out-expo);
}

.burger-line:nth-child(1) {
    top: 0;
}

.burger-line:nth-child(2) {
    top: 6px;
}

.burger-btn.active .burger-line:nth-child(1) {
    top: 5px;
    transform: rotate(45deg);
}

.burger-btn.active .burger-line:nth-child(2) {
    top: 5px;
    transform: rotate(-45deg);
}

.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(28px) saturate(170%);
    -webkit-backdrop-filter: blur(28px) saturate(170%);
    padding: 5rem 2rem 2rem;
    transition: right 0.5s var(--ease-out-expo);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu .nav-links-mobile {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    text-align: center;
}

.mobile-menu .nav-links-mobile a {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--black);
    padding: 0.5rem 1rem;
    display: block;
    transition: opacity 0.25s ease;
}

.mobile-menu .nav-links-mobile a:active {
    opacity: 0.4;
}

/* HERO */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-900);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
    filter: brightness(0.3) contrast(1.06) grayscale(20%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.48) 0%, rgba(10, 10, 10, 0.58) 35%, rgba(10, 10, 10, 0.76) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 620px;
    padding: 2rem 1.25rem;
}

.hero-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: rgba(255, 255, 255, 0.68);
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    padding: 0.35rem 0.9rem;
    border-radius: var(--radius-full);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    background: rgba(255, 255, 255, 0.04);
    opacity: 0;
    transform: translateY(12px);
}

@media (min-width: 640px) {
    .hero-badge {
        font-size: 0.68rem;
    }
}

.hero h1 {
    font-size: 2.3rem;
    color: var(--white);
    margin-bottom: 0.9rem;
    font-weight: 700;
    letter-spacing: -0.035em;
    opacity: 0;
    transform: translateY(16px);
}

@media (min-width: 480px) {
    .hero h1 {
        font-size: 2.6rem;
    }
}

@media (min-width: 640px) {
    .hero h1 {
        font-size: 3.2rem;
    }
}

@media (min-width: 768px) {
    .hero h1 {
        font-size: 3.8rem;
    }
}

@media (min-width: 1024px) {
    .hero h1 {
        font-size: 4.5rem;
    }
}

.hero-sub {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.62);
    max-width: 420px;
    margin: 0 auto 1.8rem;
    line-height: 1.7;
    font-weight: 400;
    opacity: 0;
    transform: translateY(12px);
}

@media (min-width: 640px) {
    .hero-sub {
        font-size: 0.95rem;
        margin-bottom: 2.2rem;
    }
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    justify-content: center;
    opacity: 0;
    transform: translateY(12px);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.75rem 1.6rem;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.82rem;
    border: none;
    cursor: pointer;
    transition: all 0.35s var(--ease-out-expo);
    text-decoration: none;
    letter-spacing: -0.01em;
    -webkit-tap-highlight-color: transparent;
    white-space: nowrap;
    line-height: 1;
}

@media (min-width: 640px) {
    .btn {
        padding: 0.8rem 1.8rem;
        font-size: 0.88rem;
    }
}

.btn:active {
    transform: scale(0.94);
    transition: transform 0.1s ease;
}

.btn-primary {
    background: var(--white);
    color: var(--black);
}

.btn-primary:hover {
    background: #e6e6e6;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.09);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.32);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.4rem 0.9rem;
    font-size: 0.7rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-200);
    background: var(--white);
    color: var(--black);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    line-height: 1.2;
    white-space: nowrap;
}

.btn-sm:hover {
    border-color: var(--black);
    background: var(--black);
    color: var(--white);
}

/* Dedicated resume button — consistent, well-spaced */
.resume-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.7rem;
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    background: var(--black);
    color: var(--white);
    border: none;
    cursor: pointer;
    transition: all 0.35s var(--ease-out-expo);
    text-decoration: none;
    letter-spacing: -0.01em;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    width: 100%;
    max-width: 280px;
    -webkit-tap-highlight-color: transparent;
    line-height: 1;
}

.resume-btn:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.resume-btn:active {
    transform: scale(0.97);
}

.resume-btn i {
    font-size: 0.85rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 1.6rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    opacity: 0.32;
    animation: scrollBounce 2.6s ease-in-out infinite;
    font-size: 0.58rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.55);
    font-family: var(--font-body);
    font-weight: 500;
}

.scroll-line {
    width: 1px;
    height: 32px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.4), transparent);
}

@keyframes scrollBounce {
    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@media (min-width: 768px) {
    .scroll-line {
        height: 40px;
    }
}

/* ABOUT */
.about {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: start;
}

@media (min-width: 640px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3.5rem;
    }
}

@media (min-width: 1024px) {
    .about-grid {
        gap: 4.5rem;
    }
}

.about-visual {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 3/4;
    max-height: 460px;
    background: var(--gray-100);
}

@media (min-width: 640px) {
    .about-visual {
        max-height: 520px;
    }
}

.about-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) contrast(105%);
    transition: filter 0.6s ease;
}

.about-visual:hover img {
    filter: grayscale(0%) contrast(100%);
}

@media (max-width: 639px) {
    .about-visual {
        max-height: 320px;
        border-radius: var(--radius-md);
    }
}

.about-content h2 {
    font-size: 1.5rem;
    line-height: 1.2;
    margin-bottom: 0.8rem;
    font-weight: 700;
}

@media (min-width: 640px) {
    .about-content h2 {
        font-size: 1.9rem;
    }
}

@media (min-width: 1024px) {
    .about-content h2 {
        font-size: 2.4rem;
    }
}

.about-content .philosophy {
    font-size: 1rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1.1rem;
    line-height: 1.55;
    font-style: italic;
    letter-spacing: -0.01em;
}

@media (min-width: 640px) {
    .about-content .philosophy {
        font-size: 1.1rem;
    }
}

.about-content p {
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 0.9rem;
    font-size: 0.88rem;
}

@media (min-width: 640px) {
    .about-content p {
        font-size: 0.93rem;
    }
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    margin-top: 1.8rem;
    padding-top: 1.8rem;
    border-top: 1px solid var(--gray-200);
}

.stat-item .stat-number {
    font-family: var(--font-heading);
    font-size: 1.55rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
}

@media (min-width: 640px) {
    .stat-item .stat-number {
        font-size: 1.85rem;
    }
}

.stat-item .stat-label {
    font-size: 0.72rem;
    color: var(--gray-400);
    margin-top: 0.25rem;
    font-family: var(--font-body);
    font-weight: 500;
}

/* EXPERIENCE */
.experience {
    background: var(--gray-50);
}

.exp-card {
    padding: 1.6rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all 0.45s var(--ease-out-expo);
    background: var(--white);
    opacity: 0;
    transform: translateY(16px);
    margin-bottom: 1.3rem;
}

@media (min-width: 640px) {
    .exp-card {
        padding: 2rem 2.2rem;
        margin-bottom: 1.6rem;
    }
}

.exp-card:last-child {
    margin-bottom: 0;
}

.exp-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.exp-card .exp-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.7rem;
}

.exp-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

@media (min-width: 640px) {
    .exp-card h3 {
        font-size: 1.35rem;
    }
}

.exp-card .exp-org {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--gray-400);
    margin-bottom: 0.15rem;
}

.exp-card .exp-date {
    font-size: 0.78rem;
    color: var(--gray-400);
    font-family: var(--font-body);
    font-weight: 500;
    white-space: nowrap;
}

.exp-card ul {
    margin-top: 0.6rem;
}

.exp-card ul li {
    color: var(--gray-600);
    font-size: 0.84rem;
    padding: 0.35rem 0;
    padding-left: 1.2rem;
    position: relative;
    line-height: 1.7;
}

@media (min-width: 640px) {
    .exp-card ul li {
        font-size: 0.88rem;
    }
}

.exp-card ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--gray-300);
}

/* EDUCATION */
.education {
    background: var(--white);
}

.edu-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.1rem;
    margin-top: 2.2rem;
}

@media (min-width: 640px) {
    .edu-grid {
        grid-template-columns: 1fr 1fr 1fr;
        gap: 1.3rem;
    }
}

@media (min-width: 1024px) {
    .edu-grid {
        gap: 1.6rem;
        margin-top: 2.8rem;
    }
}

.edu-card {
    padding: 1.5rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--white);
    transition: all 0.4s var(--ease-out-expo);
    opacity: 0;
    transform: translateY(14px);
}

.edu-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.edu-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.edu-card .edu-school {
    font-size: 0.8rem;
    color: var(--gray-500);
    font-weight: 500;
}

.edu-card .edu-year {
    font-size: 0.7rem;
    color: var(--gray-400);
    margin-top: 0.4rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.edu-card .edu-detail {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

/* SKILLS */
.skills {
    background: var(--gray-50);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.55rem;
    margin-top: 2.2rem;
}

@media (min-width: 400px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.65rem;
    }
}

@media (min-width: 640px) {
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.75rem;
    }
}

@media (min-width: 768px) {
    .skills-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 0.85rem;
    }
}

@media (min-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: 0.9rem;
        margin-top: 2.8rem;
    }
}

.skill-chip {
    background: var(--white);
    padding: 0.75rem 0.5rem;
    border-radius: var(--radius-sm);
    text-align: center;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.75rem;
    border: 1px solid var(--gray-200);
    transition: all 0.35s var(--ease-out-expo);
    opacity: 0;
    transform: scale(0.94);
    color: var(--gray-700);
    cursor: default;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
}

@media (min-width: 640px) {
    .skill-chip {
        padding: 0.85rem 0.6rem;
        font-size: 0.8rem;
    }
}

.skill-chip:hover {
    border-color: var(--black);
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-md);
    color: var(--black);
}

/* PROJECTS */
.projects {
    background: var(--white);
}

.projects-carousel-wrapper {
    position: relative;
    margin-top: 2.2rem;
}

.projects-carousel {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
    gap: 0.9rem;
    padding: 0.4rem 1.25rem 0.9rem;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.projects-carousel::-webkit-scrollbar {
    display: none;
}

@media (min-width: 640px) {
    .projects-carousel {
        gap: 1.1rem;
        padding: 0.4rem 2rem 0.9rem;
    }
}

@media (min-width: 1024px) {
    .projects-carousel {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        overflow: visible;
        gap: 1.4rem;
        padding: 0;
        scroll-snap-type: none;
    }
}

.project-card {
    flex: 0 0 82%;
    max-width: 340px;
    scroll-snap-align: center;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.45s var(--ease-out-expo);
    background: var(--white);
    opacity: 0;
    transform: translateY(16px);
    min-width: 220px;
    display: flex;
    flex-direction: column;
}

@media (min-width: 480px) {
    .project-card {
        flex: 0 0 65%;
        max-width: 380px;
    }
}

@media (min-width: 640px) {
    .project-card {
        flex: 0 0 48%;
        max-width: 420px;
    }
}

@media (min-width: 1024px) {
    .project-card {
        flex: unset;
        max-width: none;
        scroll-snap-align: none;
        min-width: unset;
    }
}

.project-card:hover {
    border-color: var(--black);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.project-card .project-body {
    padding: 1.2rem 1.3rem 1.4rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

@media (min-width: 640px) {
    .project-card .project-body {
        padding: 1.4rem 1.5rem 1.6rem;
    }
}

.project-card h3 {
    font-size: 1rem;
    margin-bottom: 0.1rem;
    font-weight: 700;
}

@media (min-width: 640px) {
    .project-card h3 {
        font-size: 1.1rem;
    }
}

.project-card .project-desc {
    color: var(--gray-500);
    font-size: 0.78rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
    flex: 1;
}

@media (min-width: 640px) {
    .project-card .project-desc {
        font-size: 0.82rem;
    }
}

.project-card .project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: auto;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.45rem;
    margin-top: 1rem;
}

@media (min-width: 1024px) {
    .carousel-dots {
        display: none;
    }
}

.carousel-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--gray-300);
    border: none;
    cursor: pointer;
    transition: all 0.35s var(--ease-out-expo);
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

.carousel-dot.active {
    background: var(--black);
    width: 20px;
    border-radius: 3px;
}

/* LEADERSHIP */
.leadership {
    background: var(--gray-50);
}

.leadership-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.1rem;
    margin-top: 2.2rem;
}

@media (min-width: 640px) {
    .leadership-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.6rem;
    }
}

.lead-card {
    background: var(--white);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all 0.45s var(--ease-out-expo);
    opacity: 0;
    transform: translateY(12px);
}

@media (min-width: 640px) {
    .lead-card {
        padding: 1.8rem 2rem;
    }
}

.lead-card:hover {
    border-color: var(--black);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.lead-card .lead-role {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-400);
}

.lead-card h4 {
    font-size: 1.05rem;
    margin: 0.2rem 0 0.35rem;
    font-weight: 700;
}

.lead-card .lead-date {
    font-size: 0.75rem;
    color: var(--gray-400);
    font-family: var(--font-body);
    font-weight: 500;
    margin-bottom: 0.6rem;
}

.lead-card p {
    color: var(--gray-600);
    line-height: 1.7;
    font-size: 0.82rem;
}

@media (min-width: 640px) {
    .lead-card p {
        font-size: 0.86rem;
    }
}

/* ACTIVITIES */
.activities {
    background: var(--white);
}

.activities-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.9rem;
    margin-top: 2.2rem;
}

@media (min-width: 480px) {
    .activities-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.1rem;
    }
}

@media (min-width: 768px) {
    .activities-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: 1.1rem;
    }
}

.activity-card {
    padding: 1.4rem 1.2rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--white);
    transition: all 0.4s var(--ease-out-expo);
    opacity: 0;
    transform: translateY(12px);
    text-align: center;
}

.activity-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.activity-card .act-icon {
    font-size: 1.35rem;
    color: var(--black);
    margin-bottom: 0.5rem;
}

.activity-card h4 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.activity-card p {
    font-size: 0.72rem;
    color: var(--gray-500);
    line-height: 1.55;
}

.milestones {
    margin-top: 2.2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    justify-content: center;
}

.milestone-chip {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--gray-600);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    padding: 0.45rem 1rem;
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
}

.milestone-chip:hover {
    border-color: var(--black);
    color: var(--black);
    background: var(--white);
}

/* SOFT SKILLS */
.soft-skills {
    background: var(--gray-50);
}

.soft-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1.8rem;
}

.soft-tag {
    font-family: var(--font-body);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--gray-600);
    background: var(--white);
    border: 1px solid var(--gray-200);
    padding: 0.55rem 1.1rem;
    border-radius: var(--radius-full);
    transition: all 0.35s ease;
    opacity: 0;
    transform: translateY(8px);
}

.soft-tag:hover {
    border-color: var(--black);
    color: var(--black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* TESTIMONIALS */
.testimonials {
    background: var(--white);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.1rem;
    margin-top: 2.2rem;
}

@media (min-width: 640px) {
    .testimonial-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.35rem;
    }
}

@media (min-width: 1024px) {
    .testimonial-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: 1.35rem;
    }
}

.testimonial-card {
    padding: 1.5rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: var(--white);
    transition: all 0.4s var(--ease-out-expo);
    opacity: 0;
    transform: translateY(12px);
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    border-color: var(--black);
    box-shadow: var(--shadow-md);
}

.testimonial-card .quote {
    font-size: 0.82rem;
    color: var(--gray-600);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 1rem;
    flex: 1;
}

.testimonial-card .author {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--black);
    letter-spacing: -0.01em;
}

.testimonial-card .author-role {
    font-size: 0.65rem;
    color: var(--gray-400);
    font-weight: 500;
    margin-top: 0.1rem;
}

/* CONTACT */
.contact {
    background: var(--gray-50);
}

.contact-inner {
    margin-top: 2.2rem;
}

.contact-info {
    max-width: 640px;
}

.contact-info h3 {
    font-size: 1.35rem;
    margin-bottom: 0.6rem;
    font-weight: 700;
}

@media (min-width: 640px) {
    .contact-info h3 {
        font-size: 1.55rem;
    }
}

.contact-info>p {
    color: var(--gray-500);
    line-height: 1.75;
    margin-bottom: 1.6rem;
    font-size: 0.88rem;
    max-width: 520px;
}

.contact-items-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.9rem;
}

@media (min-width: 480px) {
    .contact-items-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 768px) {
    .contact-items-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    opacity: 0;
    transform: translateY(6px);
}

.contact-item .ci-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--white);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.82rem;
    color: var(--black);
    flex-shrink: 0;
    transition: all 0.3s var(--ease-out-expo);
}

.contact-item:hover .ci-icon {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.contact-item .ci-text h4 {
    font-size: 0.75rem;
    font-family: var(--font-body);
    font-weight: 600;
    margin-bottom: 0.1rem;
}

.contact-item .ci-text p {
    color: var(--gray-400);
    font-size: 0.72rem;
    margin: 0;
    font-weight: 500;
    word-break: break-word;
}

.social-links {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.social-link {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--gray-500);
    transition: all 0.3s var(--ease-out-expo);
    background: var(--white);
    opacity: 0;
    transform: scale(0.9);
    -webkit-tap-highlight-color: transparent;
}

.social-link:hover {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* FOOTER */
.site-footer {
    width: 100%;
    margin-top: auto;
    padding: 2rem 1.5rem 2.2rem;
    background: #ffffff;
    border-top: 1px solid #ececec;
}

.footer-inner {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.1rem;
}

.footer-logo-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.footer-logo-link:hover {
    transform: scale(1.02);
}

.footer-logo-img {
    max-width: 100px;
    width: 100%;
    height: auto;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.footer-logo-link:hover .footer-logo-img {
    opacity: 1;
}

.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.75rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: #6a6a7a;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: #000000;
}

.footer-links .divider {
    color: #d0d0dc;
    font-size: 0.7rem;
    user-select: none;
}

::selection {
    background-color: #000000;
    color: #FFFFFF;
}

@media (max-width: 640px) {
    .site-footer {
        padding: 1.4rem 1rem 1.6rem;
    }

    .footer-logo-img {
        max-width: 80px;
    }

    .footer-links a {
        font-size: 0.7rem;
    }

    .footer-links {
        gap: 1rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .scroll-indicator {
        animation: none !important;
    }

    .projects-carousel {
        scroll-behavior: auto;
    }
}