/* ============================================
   Victoria Tayrova — Personal Website
   Modern minimal, cool neutral palette
   ============================================ */

:root {
    --color-bg: #FAFAFA;
    --color-bg-alt: #F3F3F5;
    --color-text: #1A1A1A;
    --color-text-secondary: #71717A;
    --color-accent: #2C2C2C;
    --color-accent-soft: #52525B;
    --color-highlight: #A0A0AB;
    --color-border: #E4E4E7;
    --color-white: #FFFFFF;

    --font-heading: 'Space Grotesk', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;

    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

    --container: 1200px;
    --gap: clamp(1.25rem, 4vw, 2rem);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; height: auto; }

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--gap);
}

/* ---- Preloader ---- */
.preloader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s var(--ease-out), visibility 0.6s;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.preloader-inner {
    text-align: center;
}

.preloader-line {
    display: block;
    width: 48px;
    height: 1px;
    background: var(--color-accent);
    margin: 0 auto 1.25rem;
    animation: preloaderLine 1.2s var(--ease-in-out) infinite;
}

@keyframes preloaderLine {
    0%, 100% { transform: scaleX(0.3); opacity: 0.3; }
    50% { transform: scaleX(1); opacity: 1; }
}

.preloader-text {
    font-family: var(--font-heading);
    font-size: 1rem;
    letter-spacing: 0.15em;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    font-weight: 400;
}

/* ---- Custom Cursor (desktop only) ---- */
.cursor, .cursor-follower {
    display: none;
}

@media (hover: hover) and (pointer: fine) {
    .cursor {
        display: block;
        position: fixed;
        width: 6px;
        height: 6px;
        background: var(--color-accent);
        border-radius: 50%;
        pointer-events: none;
        z-index: 10000;
        transform: translate(-50%, -50%);
        transition: transform 0.1s;
    }

    .cursor-follower {
        display: block;
        position: fixed;
        width: 32px;
        height: 32px;
        border: 1px solid var(--color-highlight);
        border-radius: 50%;
        pointer-events: none;
        z-index: 9999;
        transform: translate(-50%, -50%);
        transition: transform 0.3s var(--ease-out), width 0.3s, height 0.3s, border-color 0.3s;
    }

    .cursor-follower.hover {
        width: 52px;
        height: 52px;
        border-color: var(--color-accent);
    }

    body { cursor: none; }
    a, button { cursor: none; }
}

/* ---- Header ---- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.25rem 0;
    transition: background 0.4s, box-shadow 0.4s, padding 0.4s;
}

.header.scrolled {
    background: rgba(250, 250, 250, 0.92);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    box-shadow: 0 1px 0 var(--color-border);
    padding: 0.75rem 0;
}

.nav {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--gap);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--color-text);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    position: relative;
    transition: color 0.3s;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-text);
    transition: width 0.4s var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    width: 28px;
    height: 20px;
    position: relative;
    z-index: 200;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--color-text);
    position: absolute;
    left: 0;
    transition: transform 0.4s var(--ease-out), opacity 0.3s;
}

.nav-toggle span:first-child { top: 4px; }
.nav-toggle span:last-child { bottom: 4px; }

.nav-toggle.active span:first-child {
    transform: translateY(5.5px) rotate(45deg);
}

.nav-toggle.active span:last-child {
    transform: translateY(-5.5px) rotate(-45deg);
}

/* ---- Mobile Menu ---- */
.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 150;
    background: var(--color-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s var(--ease-out), visibility 0.5s;
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-inner {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-link {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(2rem, 8vw, 3rem);
    padding: 0.5rem 0;
    color: var(--color-text);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out), color 0.3s;
}

.mobile-menu.active .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-menu.active .mobile-link:nth-child(1) { transition-delay: 0.08s; }
.mobile-menu.active .mobile-link:nth-child(2) { transition-delay: 0.14s; }
.mobile-menu.active .mobile-link:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-link:nth-child(4) { transition-delay: 0.26s; }

.mobile-link:hover { color: var(--color-text-secondary); }

/* ---- Hero ---- */
.hero {
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 7rem 0 3rem;
}

.hero-content {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--gap);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-greeting {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.hero-line {
    display: block;
    width: 32px;
    height: 1px;
    background: var(--color-text);
}

.hero-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-text-secondary);
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 1.75rem;
}

.title-line {
    display: block;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
}

.title-italic {
    font-weight: 400;
    color: var(--color-highlight);
}

.hero-subtitle {
    font-size: clamp(0.9rem, 1.3vw, 1rem);
    color: var(--color-text-secondary);
    line-height: 1.75;
    max-width: 460px;
    margin-bottom: 2.5rem;
}

.hero-cta {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.75rem;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    border-radius: 0;
    transition: all 0.35s var(--ease-out);
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border: 1px solid var(--color-accent);
}

.btn-primary:hover {
    background: transparent;
    color: var(--color-accent);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-ghost:hover {
    border-color: var(--color-text);
}

/* Hero Image */
.hero-image {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 3/4;
}

.hero-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s var(--ease-out);
}

.hero-image:hover .hero-image-wrapper img {
    transform: scale(1.03);
}

.hero-image-badge {
    position: absolute;
    bottom: 1.5rem;
    left: -1.5rem;
    background: var(--color-white);
    padding: 1rem 1.25rem;
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
    text-align: center;
}

.badge-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1;
}

.badge-text {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
    display: block;
}

/* Hero Scroll */
.hero-scroll {
    max-width: var(--container);
    margin: auto auto 0;
    padding: 0 var(--gap);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.hero-scroll span {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-highlight);
}

.scroll-indicator {
    width: 18px;
    height: 28px;
    border: 1.5px solid var(--color-border);
    border-radius: 9px;
    display: flex;
    justify-content: center;
    padding-top: 5px;
}

.scroll-dot {
    width: 2px;
    height: 6px;
    background: var(--color-accent);
    border-radius: 1px;
    animation: scrollDot 1.8s var(--ease-in-out) infinite;
}

@keyframes scrollDot {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.15; }
}

/* ---- Marquee ---- */
.marquee-section {
    padding: 1.75rem 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
}

.marquee {
    overflow: hidden;
    white-space: nowrap;
}

.marquee-inner {
    display: inline-flex;
    align-items: center;
    gap: 2rem;
    animation: marquee 35s linear infinite;
}

.marquee-inner span {
    font-size: clamp(0.8rem, 1.5vw, 1rem);
    font-weight: 400;
    color: var(--color-text-secondary);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    flex-shrink: 0;
}

.marquee-dot {
    display: inline-block;
    width: 4px;
    height: 4px;
    background: var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ---- Section common ---- */
.section-header {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.section-number {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-highlight);
    letter-spacing: 0.05em;
    font-family: var(--font-body);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 500;
    letter-spacing: -0.02em;
}

/* ---- About ---- */
.about {
    padding: 6rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 4rem;
    align-items: start;
}

.about-image {
    position: relative;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    filter: grayscale(0.1);
    transition: filter 0.6s, transform 0.8s var(--ease-out);
}

.about-image:hover img {
    filter: grayscale(0);
    transform: scale(1.02);
}

.about-lead {
    font-family: var(--font-heading);
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    font-weight: 500;
    letter-spacing: -0.01em;
    line-height: 1.55;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

.about-text {
    color: var(--color-text-secondary);
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--color-border);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    font-weight: 400;
    color: var(--color-text);
    line-height: 1;
}

.stat-plus {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 2.5vw, 1.8rem);
    color: var(--color-text);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}

/* ---- Experience ---- */
.experience {
    padding: 6rem 0;
    background: var(--color-bg-alt);
}

.timeline {
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 200px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--color-border);
}

.timeline-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 3rem;
    padding: 2.25rem 0;
    position: relative;
}

.timeline-item:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 196px;
    top: 2.5rem;
    width: 9px;
    height: 9px;
    background: var(--color-text);
    border-radius: 50%;
    border: 2px solid var(--color-bg-alt);
}

.timeline-date {
    text-align: right;
    padding-right: 2rem;
}

.date-range {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
}

.date-duration {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

.timeline-header {
    margin-bottom: 1rem;
}

.timeline-company {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 0.25rem;
}

.timeline-role {
    font-size: 0.85rem;
    color: var(--color-accent-soft);
    font-weight: 500;
}

.timeline-tasks li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: 0.3rem;
}

.timeline-tasks li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.65em;
    width: 6px;
    height: 1px;
    background: var(--color-highlight);
}

/* ---- Skills ---- */
.skills {
    padding: 6rem 0;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--color-border);
}

.skill-card {
    padding: 2.25rem 1.75rem;
    background: var(--color-bg);
    transition: background 0.4s;
}

.skill-card:hover {
    background: var(--color-bg-alt);
}

.skill-icon {
    color: var(--color-text);
    margin-bottom: 1.25rem;
    opacity: 0.6;
}

.skill-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.6rem;
}

.skill-desc {
    font-size: 0.825rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ---- Education ---- */
.education {
    padding: 6rem 0;
    background: var(--color-bg-alt);
}

.edu-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--color-border);
}

.edu-card {
    padding: 2rem 1.5rem;
    background: var(--color-bg-alt);
    transition: background 0.4s;
}

.edu-card:hover {
    background: var(--color-bg);
}

.edu-year {
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    display: block;
    margin-bottom: 1rem;
    line-height: 1;
    letter-spacing: 0.1em;
}

.edu-title {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.edu-desc {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ---- Contact ---- */
.contact {
    padding: 6rem 0;
}

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

.contact-lead {
    font-family: var(--font-heading);
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    line-height: 1.55;
    margin-bottom: 2.5rem;
    color: var(--color-text);
}

.contact-links {
    display: flex;
    flex-direction: column;
}

.contact-link {
    display: flex;
    align-items: center;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--color-border);
    transition: padding-left 0.4s var(--ease-out);
}

.contact-link:first-child {
    border-top: 1px solid var(--color-border);
}

.contact-link:hover {
    padding-left: 0.75rem;
}

.contact-link-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
    width: 90px;
    flex-shrink: 0;
}

.contact-link-value {
    flex: 1;
    font-size: 0.95rem;
    font-weight: 400;
}

.contact-link svg {
    color: var(--color-text-secondary);
    flex-shrink: 0;
    transition: transform 0.3s var(--ease-out);
}

.contact-link:hover svg {
    transform: translate(3px, -3px);
}

.contact-location {
    margin-top: 2rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-sep {
    color: var(--color-border);
}

/* ---- Footer ---- */
.footer {
    padding: 1.5rem 0;
    border-top: 1px solid var(--color-border);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.footer-guild {
    opacity: 0.7;
}

/* ---- Reveal Animations ---- */
.reveal-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}

.reveal-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-image {
    opacity: 0;
    transform: scale(0.97);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal-image.visible {
    opacity: 1;
    transform: scale(1);
}

.reveal-text {
    opacity: 0;
    transform: translateX(-15px);
    transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal-text.visible {
    opacity: 1;
    transform: translateX(0);
}

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

/* Tablet */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .hero-text {
        order: 1;
    }

    .hero-image {
        order: 2;
        max-width: 400px;
    }

    .hero-image-badge {
        left: auto;
        right: -0.5rem;
        bottom: 1.5rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-image {
        max-width: 400px;
    }

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

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

    .timeline::before { display: none; }
    .timeline-item::before { display: none; }

    .timeline-item {
        grid-template-columns: 1fr;
        gap: 0.35rem;
    }

    .timeline-date {
        text-align: left;
        padding-right: 0;
        display: flex;
        gap: 0.75rem;
        align-items: baseline;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: block; }

    .hero {
        padding: 5.5rem 0 2rem;
        min-height: 100svh;
    }

    .hero-content {
        gap: 2rem;
    }

    .hero-image {
        max-width: 320px;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .hero-cta {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-scroll {
        margin-top: 2rem;
    }

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

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

    .about, .experience, .skills, .education, .contact {
        padding: 4rem 0;
    }

    .section-header {
        margin-bottom: 2rem;
    }

    .about-stats {
        gap: 1.5rem;
    }

    .contact-link {
        flex-wrap: wrap;
        gap: 0.15rem;
    }

    .contact-link-label {
        width: 100%;
    }

    .contact-location {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .contact-sep { display: none; }

    .footer-inner {
        flex-direction: column;
        gap: 0.35rem;
        text-align: center;
    }

    .timeline-tasks li {
        font-size: 0.825rem;
    }

    .timeline-company {
        font-size: 1.15rem;
    }

    .timeline-role {
        font-size: 0.8rem;
    }

    .skill-card {
        padding: 1.75rem 1.5rem;
    }
}

/* Small phones */
@media (max-width: 420px) {
    :root {
        --gap: 1rem;
    }

    .hero-image {
        max-width: 100%;
    }

    .hero-image-badge {
        right: 0.5rem;
        bottom: 0.75rem;
        padding: 0.75rem 1rem;
    }

    .badge-number {
        font-size: 1.5rem;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }

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

    .mobile-link {
        font-size: 2rem;
    }
}