:root {
    --color-page: #2a2727;
    --color-shell: #0b1117;
    --color-shell-strong: #0f151c;
    --color-surface: rgba(255, 255, 255, 0.04);
    --color-surface-strong: rgba(255, 255, 255, 0.06);
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(248, 246, 116, 0.22);
    --color-text-primary: #f4f7fa;
    --color-text-secondary: #d6dce3;
    --color-text-muted: #a8b0bb;
    --color-text-soft: #7f909d;
    --color-accent: #f8f674;
    --color-accent-strong: #e6f06a;
    --color-blue: #0791dc;
    --font-display: "Anton", "Arial Narrow", sans-serif;
    --font-primary: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
    --shadow-soft: 0 20px 40px rgba(0, 0, 0, 0.22);
    --radius-md: 18px;
    --radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    margin: 0;
    min-height: 100vh;
    padding: 0 0 5rem;
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    background: var(--color-shell);
}

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

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

button,
input {
    font: inherit;
}

button {
    border: 0;
    background: none;
    color: inherit;
}

:focus-visible {
    outline: 2px solid rgba(248, 246, 116, 0.9);
    outline-offset: 3px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: 0.75rem;
    left: 1rem;
    z-index: 1000;
    padding: 0.75rem 1rem;
    border-radius: 999px;
    background: var(--color-accent);
    color: #0b1117;
    transform: translateY(-200%);
    transition: transform var(--transition-fast);
}

.skip-link:focus {
    transform: translateY(0);
}

h1,
h2,
h3,
p {
    margin: 0;
}

p {
    color: var(--color-text-secondary);
}

.page-shell {
    width: 100%;
    margin: 0 auto;
    background: var(--color-shell);
    min-height: 100vh;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: 40;
    background: #0a1018;
    border-bottom: 1px solid #1e2d3d;
}

.nav-container {
    min-height: 72px;
    padding: 0 2.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.15rem;
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-link {
    color: var(--color-text-soft);
    font-size: 0.82rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus-visible {
    color: var(--color-text-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.35rem;
    cursor: pointer;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    border-radius: 999px;
    background: var(--color-accent);
}

.hero,
.section-block {
    scroll-margin-top: 88px;
}

.hero {
    padding: 1.75rem 2.5rem 3.5rem;
}

.hero-layout {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 4.5rem;
    align-items: start;
}

.hero-photo-card {
    width: 300px;
    height: 298px;
    overflow: hidden;
    border-radius: 34px;
    border: 1px solid rgba(248, 246, 116, 0.22);
    background: #e5e7eb;
}

.hero-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-copy {
    padding-top: 0.5rem;
}

.hero-greeting:empty,
.section-eyebrow:empty,
.section-intro:empty {
    display: none;
}

.hero-greeting {
    margin-bottom: 0.75rem;
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-name {
    max-width: 12ch;
    font-size: clamp(3.4rem, 7vw, 5rem);
    line-height: 0.94;
}

.hero-tagline {
    margin-top: 0.85rem;
    font-size: clamp(1.8rem, 3vw, 2.125rem);
    font-weight: 700;
    color: #ebedf0;
}

.hero-description {
    max-width: 46rem;
    margin-top: 1.7rem;
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-text-muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-top: 2rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.75rem 1.35rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--color-accent-strong);
    color: #0b1117;
}

.btn-primary:hover {
    background: #f0f796;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.12);
    color: #ebedf0;
}

.btn-secondary:hover {
    border-color: rgba(255, 255, 255, 0.22);
}

.btn-accent-outline {
    background: rgba(248, 246, 116, 0.08);
    border-color: rgba(248, 246, 116, 0.22);
    color: var(--color-accent);
}

.btn-accent-outline:hover {
    background: rgba(248, 246, 116, 0.14);
    border-color: rgba(248, 246, 116, 0.34);
}

.section-block {
    padding: 0 2.5rem 3.5rem;
}

.section-block + .section-block {
    margin-top: 0.9rem;
}

.section-header {
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: clamp(1.9rem, 4vw, 2.5rem);
    line-height: 1.15;
}

.about-layout {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 1.45rem;
    align-items: start;
}

.about-photo-card,
.about-text-card,
.card,
.project-card,
.contact-shell {
    border: 1px solid var(--color-border);
    background: var(--color-surface);
}

.about-photo-card {
    position: relative;
    overflow: hidden;
    height: 306px;
    border-radius: 30px;
}

.photo-carousel {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-photo {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.carousel-photo.active {
    opacity: 1;
}

.carousel-btn {
    position: absolute;
    right: 14px;
    bottom: 14px;
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--color-accent);
    color: #0d1117;
    cursor: pointer;
}

.carousel-btn[hidden] {
    display: none;
}

.about-text-card {
    min-height: 324px;
    padding: 1.75rem;
    border-radius: 28px;
}

.about-text-card p {
    font-size: 1.0625rem;
    line-height: 1.7;
}

.about-text-card p + p {
    margin-top: 1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.125rem;
}

.card {
    min-height: 156px;
    padding: 1.35rem;
    border-radius: var(--radius-md);
}

.card-kicker,
.project-eyebrow,
.toolkit-title {
    color: var(--color-accent);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.card-title {
    margin-top: 0.85rem;
    font-size: 1.2rem;
    line-height: 1.2;
}

.skill-title {
    margin-top: 0;
    font-size: 1.25rem;
    line-height: 1.2;
}

.card-description {
    margin-top: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.6;
}

.projects-grid {
    display: grid;
    gap: 1.125rem;
}

.project-card {
    padding: 1.75rem;
    border-radius: var(--radius-lg);
}

.project-card.featured {
    border-color: rgba(248, 246, 116, 0.34);
}

.project-title {
    margin-top: 0.55rem;
    font-size: clamp(1.45rem, 3vw, 1.9rem);
    line-height: 1.15;
}

.project-summary,
.project-description {
    margin-top: 0.8rem;
    font-size: 1rem;
    line-height: 1.65;
}

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.2rem;
}

.projects-secondary-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.125rem;
}

.toolkit-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.125rem;
}

.toolkit-title {
    font-size: 1rem;
}

.toolkit-list {
    display: grid;
    gap: 0.4rem;
    margin-top: 0.9rem;
}

.toolkit-list p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-shell {
    padding: 1.75rem;
    border-radius: 28px;
}

.contact-copy {
    color: var(--color-accent);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.125rem;
    margin-top: 1.2rem;
}

.contact-card {
    display: block;
    min-height: 92px;
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: rgba(255, 255, 255, 0.03);
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.contact-card:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.16);
}

.contact-card-label {
    color: var(--color-text-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.contact-card-value {
    margin-top: 0.55rem;
    color: var(--color-text-secondary);
    font-size: 1rem;
    font-weight: 600;
    word-break: break-word;
}

.footer {
    width: 100%;
    margin: 1rem auto 0;
}

.footer p {
    text-align: center;
    color: rgba(255, 255, 255, 0.52);
    font-size: 0.82rem;
}

.chat-trigger {
    position: fixed;
    right: 32px;
    top: 50%;
    bottom: auto;
    z-index: 90;
    width: 92px;
    min-height: 84px;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    padding: 0.9rem 0.75rem;
    border-radius: 999px;
    background: var(--color-blue);
    color: #0b1117;
    cursor: pointer;
    box-shadow: 0 18px 40px rgba(7, 145, 220, 0.28);
    transform: translateY(-50%);
    transition: transform var(--transition-fast), opacity var(--transition-fast), box-shadow var(--transition-fast);
}

.chat-trigger:hover {
    transform: translateY(calc(-50% - 2px));
}

.chat-trigger.hidden {
    opacity: 0;
    pointer-events: none;
}

.chat-trigger-primary {
    font-family: var(--font-display);
    font-size: 0.95rem;
    line-height: 1;
}

.chat-trigger-secondary {
    font-size: 0.74rem;
    font-weight: 700;
    line-height: 1.15;
    text-align: center;
}

.chat-panel {
    position: fixed;
    right: 32px;
    top: 50%;
    bottom: auto;
    z-index: 95;
    width: min(476px, calc(100vw - 2rem));
    border: 1px solid #22303c;
    border-radius: 22px;
    overflow: hidden;
    background: #0f151c;
    box-shadow: 0 32px 60px rgba(0, 0, 0, 0.38);
    opacity: 0;
    visibility: hidden;
    transform: translateY(calc(-50% + 18px));
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
}

.chat-panel.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%);
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid #22303c;
    background: #111923;
}

.chat-header-copy {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.chat-avatar {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--color-blue);
    color: #0b1117;
    font-family: var(--font-display);
    font-size: 0.8rem;
}

.chat-model-label {
    color: var(--color-text-soft);
    font-size: 0.92rem;
}

.chat-close {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    color: var(--color-text-secondary);
    cursor: pointer;
}

.chat-close:hover {
    background: rgba(255, 255, 255, 0.06);
}

.chat-messages {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
    max-height: min(46vh, 340px);
    padding: 1.25rem;
    overflow-y: auto;
}

.chat-msg {
    max-width: 88%;
    padding: 1rem 1.1rem;
    border-radius: 24px;
    border: 1px solid #24313e;
    background: #111923;
}

.chat-msg.assistant {
    align-self: flex-start;
}

.chat-msg.user {
    align-self: flex-end;
    border-color: rgba(7, 145, 220, 0.28);
    background: rgba(7, 145, 220, 0.16);
}

.chat-msg p {
    color: var(--color-text-secondary);
    font-size: 0.98rem;
    line-height: 1.5;
    white-space: pre-wrap;
}

.chat-msg.user p {
    color: var(--color-text-primary);
}

.typing-dots {
    display: flex;
    gap: 0.35rem;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: var(--color-blue);
    animation: typingBounce 1.1s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.16s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.32s;
}

.chat-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0 1.25rem 1rem;
}

.chat-chips.is-hidden {
    display: none;
}

.chat-chip {
    min-height: 38px;
    padding: 0.55rem 1rem;
    border-radius: 999px;
    border: 1px solid #24313e;
    background: #111923;
    color: #e4ebf2;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.chat-chip:hover {
    transform: translateY(-1px);
    border-color: rgba(7, 145, 220, 0.36);
    background: rgba(7, 145, 220, 0.12);
}

.chat-input-area {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.9rem 1rem 1rem;
    border-top: 1px solid #22303c;
    background: #111923;
}

.chat-input {
    flex: 1;
    min-height: 44px;
    padding: 0.7rem 1rem;
    border: 1px solid #2a3744;
    border-radius: 999px;
    background: #0b1117;
    color: var(--color-text-primary);
}

.chat-input::placeholder {
    color: #3d5265;
}

.chat-send {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--color-blue);
    color: #0b1117;
    cursor: pointer;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.chat-send:hover {
    transform: scale(1.04);
}

.chat-send:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.back-to-top {
    position: fixed;
    right: 140px;
    bottom: 32px;
    z-index: 90;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--color-accent);
    color: #0d1117;
    box-shadow: 0 14px 24px rgba(248, 246, 116, 0.24);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@keyframes typingBounce {
    0%,
    60%,
    100% {
        transform: translateY(0);
    }

    30% {
        transform: translateY(-4px);
    }
}

@media (max-width: 1080px) {
    .hero-layout,
    .about-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .hero-photo-card,
    .about-photo-card {
        width: min(360px, 100%);
    }

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

@media (max-width: 840px) {
    html {
        font-size: 15px;
    }

    body {
        padding: 0 0 5rem;
    }

    .nav-container,
    .hero,
    .section-block {
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }

    .hero {
        padding-bottom: 2.75rem;
    }

    .section-block {
        padding-bottom: 2.75rem;
    }

    .section-block + .section-block {
        margin-top: 0.5rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0.75rem 1.25rem 1rem;
        background: #0a1018;
        border-bottom: 1px solid #1e2d3d;
    }

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

    .nav-link {
        padding: 0.8rem 0;
    }

    .projects-secondary-grid,
    .toolkit-grid,
    .contact-grid,
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-actions,
    .project-links {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions .btn,
    .project-links .btn {
        width: 100%;
    }

    .chat-panel {
        right: 0.75rem;
        left: 0.75rem;
        width: auto;
        top: auto;
        bottom: 0.75rem;
        transform: translateY(18px);
    }

    .chat-trigger {
        right: 0.75rem;
        top: auto;
        bottom: 0.75rem;
        transform: none;
    }

    .chat-trigger:hover {
        transform: translateY(-2px);
    }

    .chat-panel.open {
        transform: translateY(0);
    }

    .back-to-top {
        right: 6.75rem;
        bottom: 0.75rem;
    }
}

@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;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}