:root {
    --font-display: "Outfit", "Segoe UI", sans-serif;
    --font-body: "Manrope", "Segoe UI", sans-serif;

    --color-bg: #f4f7ff;
    --color-bg-accent: #e8efff;
    --color-surface: rgba(255, 255, 255, 0.62);
    --color-surface-strong: rgba(255, 255, 255, 0.82);
    --color-border: rgba(255, 255, 255, 0.7);
    --color-text: #1d2540;
    --color-text-muted: #546083;
    --color-primary: #3554d1;
    --color-primary-strong: #223eb2;
    --color-accent: #0ea381;
    --color-shadow: 20 28 64;

    --radius-sm: 0.65rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    --space-1: 0.35rem;
    --space-2: 0.6rem;
    --space-3: 0.85rem;
    --space-4: 1rem;
    --space-5: 1.4rem;
    --space-6: 2rem;
    --space-7: 2.8rem;
    --space-8: 4rem;

    --shadow-soft: 0 10px 30px rgba(var(--color-shadow), 0.1);
    --shadow-float: 0 14px 36px rgba(var(--color-shadow), 0.18);

    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.4s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    line-height: 1.6;
    background:
        radial-gradient(circle at 10% 10%, #ffffff 0%, #ffffff00 42%),
        radial-gradient(circle at 92% 0%, #ccdcff 0%, #ccdcff00 40%),
        linear-gradient(160deg, var(--color-bg) 0%, var(--color-bg-accent) 100%);
    min-height: 100vh;
}

img {
    display: block;
    width: 100%;
    height: auto;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-base);
}

.container {
    width: min(1100px, 92vw);
    margin-inline: auto;
}

.site-header {
    padding: var(--space-5) 0 var(--space-7);
    position: relative;
    overflow: hidden;
}

.site-header::before,
.site-header::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    z-index: -1;
}

.site-header::before {
    width: 280px;
    aspect-ratio: 1;
    background: rgba(59, 102, 255, 0.14);
    top: -120px;
    right: -60px;
}

.site-header::after {
    width: 220px;
    aspect-ratio: 1;
    background: rgba(14, 163, 129, 0.12);
    top: 160px;
    left: -90px;
}

.site-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    backdrop-filter: blur(14px);
    box-shadow: var(--shadow-soft);
}

.site-nav__brand {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2.6vw, 1.35rem);
    font-weight: 700;
    letter-spacing: 0.02em;
    position: relative;
}

.site-nav__brand::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.22rem;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0.65);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.site-nav__brand:hover::after {
    transform: scaleX(1);
}

.site-nav__list {
    list-style: none;
    display: none;
    gap: var(--space-4);
}

.site-nav__link {
    font-size: 0.94rem;
    color: var(--color-text-muted);
    position: relative;
}

.site-nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.28rem;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.site-nav__link:hover {
    color: var(--color-primary-strong);
}

.site-nav__link:hover::after {
    transform: scaleX(1);
}

.hero {
    margin-top: var(--space-6);
    display: grid;
    gap: var(--space-6);
    align-items: center;
}

.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary-strong);
    background: rgba(53, 84, 209, 0.11);
}

.hero__title {
    margin-top: var(--space-4);
    font-family: var(--font-display);
    font-size: clamp(2rem, 7.5vw, 3.75rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
}

.hero__subtitle {
    margin-top: var(--space-2);
    color: var(--color-text-muted);
    font-weight: 700;
}

.hero__description {
    margin-top: var(--space-4);
    max-width: 58ch;
    color: var(--color-text-muted);
}

.hero__actions {
    margin-top: var(--space-5);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.68rem 1.2rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base),
        background-color var(--transition-base),
        color var(--transition-base),
        border-color var(--transition-base);
}

.button--primary {
    color: #fff;
    background: linear-gradient(130deg, var(--color-primary), var(--color-primary-strong));
    box-shadow: 0 10px 24px rgba(34, 62, 178, 0.28);
}

.button--secondary {
    color: var(--color-primary-strong);
    border-color: rgba(53, 84, 209, 0.25);
    background-color: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(8px);
}

.button:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 14px 30px rgba(34, 62, 178, 0.22);
}

.button:active {
    transform: translateY(-1px) scale(0.98);
}

.button--secondary:hover {
    background-color: rgba(255, 255, 255, 0.92);
    border-color: rgba(53, 84, 209, 0.5);
}

.hero__media img {
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    background-color: rgba(255, 255, 255, 0.35);
    box-shadow: var(--shadow-float);
    object-fit: cover;
    min-height: 260px;
    animation: heroFloat 5.5s ease-in-out infinite;
}

.site-main {
    padding-bottom: var(--space-8);
}

.content-section {
    margin-top: var(--space-7);
    opacity: 0;
    transform: translateY(18px);
    animation: revealUp 0.6s ease forwards;
}

.content-section:nth-of-type(1) {
    animation-delay: 0.06s;
}

.content-section:nth-of-type(2) {
    animation-delay: 0.12s;
}

.content-section:nth-of-type(3) {
    animation-delay: 0.18s;
}

.content-section:nth-of-type(4) {
    animation-delay: 0.24s;
}

.content-section:nth-of-type(5) {
    animation-delay: 0.3s;
}

.content-section:nth-of-type(6) {
    animation-delay: 0.36s;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 5.2vw, 2rem);
    margin-bottom: var(--space-5);
    letter-spacing: -0.01em;
}

.about__card,
.feature-card,
.education-list__item,
.skill-list__item,
.project-card,
.contact-layout,
.site-footer {
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-soft);
}

.about__card,
.contact-layout {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
}

.feature-grid,
.project-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

.feature-card,
.project-card {
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base);
}

.feature-card:hover,
.project-card:hover,
.education-list__item:hover,
.skill-list__item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-float);
    border-color: rgba(53, 84, 209, 0.35);
}

.feature-card__icon {
    width: 54px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-4);
}

.feature-card__title,
.education-list__title,
.project-card__title {
    font-family: var(--font-display);
    font-size: 1.1rem;
}

.feature-card__text,
.project-card__text,
.education-list__meta {
    margin-top: var(--space-2);
    color: var(--color-text-muted);
}

.education-list,
.skill-list {
    list-style: none;
    display: grid;
    gap: var(--space-3);
}

.education-list__item,
.skill-list__item {
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    transition:
        transform var(--transition-base),
        box-shadow var(--transition-base),
        border-color var(--transition-base);
}

.skill-list {
    grid-template-columns: 1fr;
}

.skill-list__item {
    font-weight: 600;
}

.project-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.project-card__image {
    border-radius: var(--radius-md);
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.project-card__link {
    width: fit-content;
    margin-top: var(--space-1);
    color: var(--color-primary);
    font-weight: 700;
    position: relative;
}

.project-card__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.22rem;
    width: 100%;
    height: 2px;
    background-color: currentColor;
    transform: scaleX(0.25);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.project-card__link:hover::after {
    transform: scaleX(1);
}

.contact-layout {
    display: grid;
    gap: var(--space-5);
}

.contact-details {
    font-style: normal;
    display: grid;
    gap: var(--space-3);
}

.contact-details__item a {
    color: var(--color-primary-strong);
    transition: color var(--transition-base);
}

.contact-details__item a:hover {
    color: var(--color-primary);
}

.contact-form {
    display: grid;
    gap: var(--space-4);
}

.contact-form__field {
    display: grid;
    gap: var(--space-2);
}

.contact-form label {
    font-weight: 700;
    color: var(--color-text);
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid rgba(53, 84, 209, 0.25);
    border-radius: var(--radius-md);
    background-color: var(--color-surface-strong);
    color: var(--color-text);
    font: inherit;
    padding: 0.75rem 0.9rem;
    transition:
        border-color var(--transition-base),
        box-shadow var(--transition-base),
        transform var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(53, 84, 209, 0.14);
}

.contact-form textarea {
    resize: vertical;
    min-height: 132px;
}

.site-footer {
    margin-top: var(--space-8);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.site-footer__text {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-5) var(--space-4);
}

@keyframes revealUp {
    from {
        opacity: 0;
        transform: translateY(18px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    50% {
        transform: translateY(-6px);
    }
}

@media (min-width: 640px) {
    .site-nav {
        padding: var(--space-3) var(--space-5);
    }

    .site-nav__list {
        display: flex;
    }

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

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

    .contact-layout {
        grid-template-columns: 0.95fr 1.05fr;
        align-items: start;
    }
}

@media (min-width: 900px) {
    .hero {
        grid-template-columns: 1.1fr 0.9fr;
        gap: var(--space-7);
    }

    .hero__title {
        max-width: 11ch;
    }

    .feature-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

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

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