/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root,
[data-theme="dark"] {
    --bg: #0a0e17;
    --bg-card: #1c1f29;
    --bg-card-hover: #262a34;
    --header-bg: rgba(15, 19, 28, 0.8);
    --border: rgba(91, 63, 69, 0.3);
    --border-hover: #ff4c87;
    --border-accent: rgba(255, 177, 194, 0.2);
    --text: #dfe2ef;
    --text-muted: #efe8e9;
    --accent: #e45f90;
    --accent-strong: #ff4c87;
    --accent-glow: rgba(255, 177, 194, 0.1);
    --accent-secondary: #f8d748;
    --gradient-start: #ff4c87;
    --gradient-end: #6d11ad;
    --grid-color: rgba(48, 54, 61, 0.2);
    --card-shadow: rgba(0, 0, 0, 0.35);
    --preview-overlay: rgba(15, 19, 28, 0.65);
    --btn-text-on-accent: #66002b;
    --photo-shadow: rgba(0, 0, 0, 0.45);
    --stack-bg: rgba(106, 11, 170, 0.1);
    --stack-border: rgba(106, 11, 170, 0.2);
    --stack-text: #e0b6ff;
    --chip-bg: #363d55;
    --font: 'Inter', system-ui, sans-serif;
    --mono: 'JetBrains Mono', monospace;
    --radius: 12px;
    --transition: 0.25s ease;
}

[data-theme="light"] {
    --bg: #dfe2ef;
    --bg-card: #ffffff;
    --bg-card-hover: #ffd9e0;
    --header-bg: rgba(223, 226, 239, 0.92);
    --border: rgba(91, 63, 69, 0.2);
    --border-hover: rgba(255, 76, 135, 0.45);
    --border-accent: rgba(255, 76, 135, 0.25);
    --text: #2c303a;
    --text-muted: #5b3f45;
    --accent: #f12a83;
    --accent-strong: #ff4c87;
    --accent-glow: rgba(187, 0, 85, 0.1);
    --accent-secondary: #6d11ad;
    --gradient-start: #ff4c87;
    --gradient-end: #6d11ad;
    --grid-color: rgba(48, 54, 61, 0.1);
    --card-shadow: rgba(44, 48, 58, 0.1);
    --preview-overlay: rgba(44, 48, 58, 0.28);
    --btn-text-on-accent: #ffffff;
    --photo-shadow: rgba(44, 48, 58, 0.15);
    --stack-bg: rgba(106, 11, 170, 0.08);
    --stack-border: rgba(106, 11, 170, 0.18);
    --stack-text: #6d11ad;
    --chip-bg: #f2f0f3;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    transition: background var(--transition), color var(--transition);
}

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
    transition: background-image var(--transition);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition), border-color var(--transition);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.header__actions {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.logo {
    font-family: var(--mono);
    font-size: clamp(0.875rem, 2.5vw, 1.125rem);
    font-weight: 500;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.logo__bracket {
    color: var(--accent);
}

.lang-toggle,
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.lang-toggle:hover,
.theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.theme-toggle__icon--sun {
    display: inline;
}

.theme-toggle__icon--moon {
    display: none;
}

[data-theme="light"] .theme-toggle__icon--sun {
    display: none;
}

[data-theme="light"] .theme-toggle__icon--moon {
    display: inline;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    z-index: 1;
    padding: 4rem 0 3rem;
    text-align: center;
}

.hero__tag {
    display: inline-block;
    font-family: var(--mono);
    font-size: 0.8125rem;
    font-weight: 500;
    color: #855fe4;
    background: var(--accent-glow);
    border: 1px solid var(--border-accent);
    padding: 0.35rem 1rem;
    border-radius: 100px;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.hero__name {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__bio {
    max-width: 560px;
    margin: 0 auto 2.5rem;
    font-size: 1.125rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.hero__contacts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.contact-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.125rem;
    background: var(--chip-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-family: var(--font);
    cursor: pointer;
    transition: var(--transition);
}

.contact-chip--copied {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.contact-chip__icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    display: block;
    object-fit: contain;
}

.contact-chip__icon--email {
    color: var(--accent);
    opacity: 0.9;
}

.contact-chip:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-1px);
}

.contact-chip:hover .contact-chip__icon--email {
    opacity: 1;
}

/* ===== Showcase ===== */
.showcase {
    position: relative;
    z-index: 1;
    padding: 2rem 0 5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    color: #855fe4;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.0625rem;
}

/* ===== Cards Grid ===== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.card {
    display: flex;
    flex-direction: column;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    animation: fadeUp 0.5s ease both;
}

.card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px var(--card-shadow), 0 0 0 1px var(--border-hover);
}

.card__preview {
    display: block;
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.card__preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.card__preview--video {
    display: block;
    background: var(--bg-card-hover);
}

.card__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    pointer-events: none;
    transition: transform 0.4s ease;
}

.card:hover .card__preview img,
.card:hover .card__video {
    transform: scale(1.05);
}

.card__preview-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, var(--preview-overlay) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition);
}

.card:hover .card__preview-overlay {
    opacity: 1;
}

.card__header {
    padding: 1.25rem 1.5rem 0;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--accent-glow);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.card__meta {
    flex: 1;
    min-width: 0;
}

.card__category {
    font-family: var(--mono);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--accent-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.25rem;
}

.card__title {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.3;
    color: var(--accent);
}

.card__body {
    padding: 1rem 1.5rem;
    flex: 1;
}

.card__desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.card__footer {
    padding: 0 1.5rem 1.5rem;
}

.card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.card__link:hover {
    background: var(--accent-strong);
    border-color: var(--accent-strong);
    color: var(--btn-text-on-accent);
}

.card__link svg {
    transition: transform var(--transition);
}

.card__link:hover svg {
    transform: translateX(3px);
}

/* ===== About ===== */
.about {
    position: relative;
    z-index: 1;
    padding: 1rem 0 5rem;
}

.about__card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3rem;
    transition: background var(--transition), border-color var(--transition);
}

.about__photo-wrap {
    flex-shrink: 0;
}

.about__photo {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center top;
    border: 3px solid var(--border-hover);
    box-shadow: 0 0 0 4px var(--accent-glow), 0 8px 32px var(--photo-shadow);
}

.about__title {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
}

.about__text {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 1rem;
}

.about__text:last-of-type {
    margin-bottom: 2rem;
}

.about__stacks-title {
    font-family: var(--mono);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.about__stacks {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    list-style: none;
}

.about__stack {
    font-family: var(--mono);
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--accent-glow);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    transition: var(--transition);
}

.about__stack:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ===== Footer ===== */
.footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    padding: 2rem 0;
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer__text,
.footer__year {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ===== Animations ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .about__card {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
        text-align: center;
    }

    .about__photo-wrap {
        display: flex;
        justify-content: center;
    }

    .about__photo {
        width: 180px;
        height: 180px;
    }

    .about__stacks {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .header__actions {
        gap: 0.375rem;
    }

    .lang-toggle,
    .theme-toggle {
        padding: 0.5rem 0.75rem;
        font-size: 0.8125rem;
    }

    .theme-toggle span[data-i18n="themeBtn"],
    .lang-toggle span[data-i18n="langBtn"] {
        display: none;
    }

    .hero {
        padding: 3rem 0 2rem;
    }

    .hero__contacts {
        flex-direction: column;
        align-items: center;
    }

    .contact-chip {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .footer__inner {
        flex-direction: column;
        text-align: center;
    }
}