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

:root {
    --cream: #f5f0e8;
    --ink: #1a1510;
    --warm: #c8a96e;
    --rust: #b84c2b;
    --muted: #5a5249;
    --card-bg: #ffffff;
    --border: #e0d8cc;
    --ff-head: 'Playfair Display', Georgia, serif;
    --ff-body: 'DM Sans', sans-serif;
    --radius: 4px;
    --trans: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--cream);
    color: var(--ink);
    font-family: var(--ff-body);
    font-size: 16px;
    line-height: 1.7;
    overflow-x: hidden;
}

/*--------------- Typography ---------------*/
h1,
h2,
h3 {
    font-family: var(--ff-head);
    line-height: 1.2;
}

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

/*--------------- Utility ---------------*/
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-label {
    font-family: var(--ff-body);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--rust);
    margin-bottom: 0.75rem;
}

.divider {
    width: 3rem;
    height: 3px;
    background: var(--rust);
    margin: 1rem 0 2rem;
}

/*--------------- Navigation Menu ---------------*/
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--ink);
    border-bottom: 2px solid var(--warm);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
}

.nav-logo {
    font-family: var(--ff-head);
    font-size: 1.3rem;
    color: var(--cream);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.nav-logo span {
    color: var(--warm);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--cream);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 2px;
    transition: color var(--trans);
    outline-offset: 2px;
}

.nav-links a:focus-visible {
    outline: 2px solid var(--warm);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--warm);
    transition: width var(--trans);
}

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

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

/*--------------- Hamburger ---------------*/
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
    outline-offset: 2px;
}

.hamburger:focus-visible {
    outline: 2px solid var(--warm);
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--cream);
    transition: var(--trans);
}

.hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/*--------------- Hero ---------------*/
.hero {
    background: var(--ink);
    color: var(--cream);
    padding: 7rem 2rem 5rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: 'JT';
    position: absolute;
    right: -2rem;
    top: -1rem;
    font-family: var(--ff-head);
    font-size: clamp(8rem, 20vw, 18rem);
    font-weight: 900;
    color: rgba(255, 255, 255, 0.04);
    line-height: 1;
    pointer-events: none;
    user-select: none;
}

.hero-inner {
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
}

.hero-tag {
    display: inline-block;
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--warm);
    border: 1px solid var(--warm);
    padding: 0.3rem 0.8rem;
    margin-bottom: 1.5rem;
    animation: fadeUp 0.7s ease both;
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 5.5rem);
    font-weight: 900;
    line-height: 1.0;
    animation: fadeUp 0.7s 0.15s ease both;
}

.hero h1 em {
    font-style: italic;
    color: var(--warm);
}

.hero-sub {
    margin-top: 1.5rem;
    font-size: 1.05rem;
    color: rgba(245, 240, 232, 0.85);
    max-width: 480px;
    font-weight: 300;
    animation: fadeUp 0.7s 0.3s ease both;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 2.5rem;
    padding: 0.85rem 2rem;
    background: var(--rust);
    color: var(--cream);
    font-family: var(--ff-body);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: background var(--trans), transform var(--trans);
    animation: fadeUp 0.7s 0.45s ease both;
    outline-offset: 2px;
}

.hero-cta:focus-visible {
    outline: 2px solid var(--cream);
}

.hero-cta:hover {
    background: var(--warm);
    transform: translateY(-2px);
}

.hero-cta svg {
    transition: transform var(--trans);
}

.hero-cta:hover svg {
    transform: translateX(4px);
}

/*--------------- Fun Fact Panel ---------------*/
#fun-fact-panel {
    display: none;
    background: var(--warm);
    color: var(--ink);
    margin-top: 1.5rem;
    padding: 1rem 1.5rem;
    border-left: 4px solid var(--rust);
    font-size: 0.95rem;
    max-width: 520px;
    animation: fadeUp 0.4s ease both;
}

#fun-fact-panel.visible {
    display: block;
}

#fun-fact-panel strong {
    font-family: var(--ff-head);
    font-size: 1.05rem;
}

/*--------------- Section Base ---------------*/
section {
    padding: 5rem 2rem;
}

/*--------------- About ---------------*/
#about {
    background: var(--cream);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 4rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.about-image-wrap {
    position: relative;
}

.about-image-wrap::before {
    content: '';
    position: absolute;
    top: -12px;
    left: -12px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--warm);
    z-index: 0;
}

.about-img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    display: block;
    position: relative;
    z-index: 1;
    filter: grayscale(20%);
    transition: filter var(--trans), transform var(--trans);
}

.about-img:hover {
    filter: grayscale(0%);
    transform: translate(4px, 4px);
}

.about-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.about-content p {
    color: var(--muted);
    margin-bottom: 1rem;
    font-weight: 300;
}

/*--------------- Credential Logos ---------------*/
.credentials {
    margin-top: 2rem;
}

.credential-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 0.75rem;
}

.credential-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border);
    background: var(--cream);
    width: 100px;
    transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
    outline-offset: 2px;
}

.credential-item:focus-visible {
    outline: 2px solid var(--warm);
}

.credential-item:hover {
    border-color: var(--warm);
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.credential-img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    display: block;
}

.credential-name {
    font-size: 0.65rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    text-align: center;
}

.badge:hover {
    background: var(--ink);
    color: var(--cream);
    border-color: var(--cream);
}

/*--------------- Hobbies ---------------*/
#hobbies {
    background: #1a1510;
    color: var(--cream);
}

#hobbies .section-label {
    color: var(--warm);
}

.hobbies-header {
    max-width: 1100px;
    margin: 0 auto 3rem;
}

.hobbies-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
}

.hobbies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5px;
    max-width: 1100px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.06);
}

.hobby-card {
    background: #1a1510;
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: background var(--trans);
}

.hobby-card::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--warm);
    transition: width 0.4s ease;
}

.hobby-card:hover {
    background: #231d16;
}

.hobby-card:hover::before {
    width: 100%;
}

.hobby-icon {
    font-size: 2rem;
    margin-bottom: 1.2rem;
    display: block;
}

.hobby-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
    color: var(--cream);
}

.hobby-card p {
    font-size: 0.9rem;
    color: white;
    font-weight: 300;
    line-height: 1.7;
}

/*--------------- Contact ---------------*/
#contact {
    background: var(--cream);
}

.contact-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-text h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.contact-text p {
    color: var(--muted);
    font-weight: 300;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 1.5rem;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
    outline-offset: 2px;
}

.contact-item:focus-visible {
    outline: 2px solid var(--warm);
}

.contact-item:hover {
    border-color: var(--warm);
    transform: translateX(6px);
    box-shadow: -4px 0 0 var(--warm);
}

.contact-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: var(--ink);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1rem;
}

.contact-icon--yahoo {
    background: #6001D2;
}

.contact-icon--github {
    background: #24292e;
}

.contact-icon--credly {
    background: #FF6B00;
}

.contact-item:hover .contact-icon--yahoo {
    background: #7b00ff;
}

.contact-item:hover .contact-icon--github {
    background: #3a3f47;
}

.contact-item:hover .contact-icon--credly {
    background: #e05e00;
}

.contact-info {
    flex: 1;
}

.contact-platform {
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
}

.contact-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--ink);
}

/*--------------- Footer ---------------*/
footer {
    background: var(--ink);
    color: rgba(245, 240, 232, 0.85);
    text-align: center;
    padding: 2rem;
    font-size: 0.8rem;
    letter-spacing: 0.08em;
}

footer span {
    color: var(--warm);
}

/*--------------- Animations ---------------*/
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.back-link {
    color: var(--rust);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    transition: opacity var(--trans);
}

.back-link:hover {
    opacity: 0.8;
}

.back-link:focus-visible {
    outline: 2px solid var(--rust);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--ink);
        flex-direction: column;
        gap: 0;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

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

    .nav-links li a {
        display: block;
        padding: 1rem 2rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links a::after {
        display: none;
    }

    header {
        position: relative;
    }

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

    .about-image-wrap {
        max-width: 320px;
    }

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

    .hero {
        padding: 4rem 1.5rem 3rem;
    }
}

@media (max-width: 480px) {
    section {
        padding: 3.5rem 1.5rem;
    }

    .credential-logos {
        gap: 0.75rem;
    }

    .credential-item {
        width: 68px;
        padding: 0.7rem 0.75rem;
    }

    .credential-img {
        width: 32px;
        height: 32px;
    }
}

/*--------------- Reduced Motion ---------------*/
@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: translateY(0);
    }

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

    .nav-links a::after,
    .hobby-card::before {
        transition: none;
    }
}

/*--------------- Privacy Policy Popup ---------------*/
.privacy-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--ink);
    color: var(--cream);
    padding: 2rem;
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    max-width: 100%;
    animation: slideUp 0.4s ease;
}

.privacy-popup.hidden {
    display: none;
}

.privacy-popup-content {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    position: relative;
}

.privacy-popup h3 {
    font-family: var(--ff-head);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--warm);
}

.privacy-popup p {
    font-size: 0.9rem;
    color: rgba(245, 240, 232, 0.85);
    line-height: 1.6;
    margin: 0;
}

.privacy-popup a {
    color: var(--warm);
    text-decoration: underline;
    transition: opacity var(--trans);
}

.privacy-popup a:hover {
    opacity: 0.8;
}

.privacy-popup-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--ink);
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.privacy-popup-close:hover {
    opacity: 1;
}

.privacy-popup-close {
    min-width: 44px;
    min-height: 44px;
    font-size: 1.5rem;
}

.privacy-popup-close:focus-visible {
    outline: 3px solid var(--rust);
    border-radius: 2px;
}

.privacy-popup-buttons {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
    align-items: center;
}

.privacy-btn-accept {
    background: var(--rust);
    color: var(--cream);
    border: none;
    padding: 0.75rem 1.5rem;
    min-width: 44px;
    min-height: 44px;
    font-family: var(--ff-body);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background var(--trans);
    border-radius: var(--radius);
}

.privacy-btn-accept:hover {
    background: var(--warm);
}

.privacy-btn-accept:focus-visible {
    outline: 2px solid var(--warm);
    outline-offset: 2px;
}

.privacy-btn-learn {
    color: var(--warm);
    text-decoration: underline;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: opacity var(--trans);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    min-height: 44px;
    padding: 0.5rem;
}

.privacy-btn-learn:focus-visible {
    outline: 2px solid var(--warm);
    outline-offset: 2px;
}

footer .footer-links {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: rgba(245, 240, 232, 0.85);
}

footer .footer-links a {
    color: rgba(245, 240, 232, 0.8);
    text-decoration: underline;
    transition: color var(--trans);
}

footer .footer-links a:hover {
    color: rgba(245, 240, 232, 0.9);
}

footer .footer-links a[aria-current="page"] {
    font-weight: bold;
    color: rgba(245, 240, 232, 0.85);
    pointer-events: none;
    cursor: default;
}

footer .footer-links a[aria-current="page"]:focus-visible {
    outline: 2px solid var(--warm);
    outline-offset: 2px;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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

@media (max-width: 768px) {
    .privacy-popup-content {
        flex-direction: column;
        align-items: stretch;
    }

    .privacy-popup-buttons {
        flex-direction: column;
    }

    .privacy-btn-accept,
    .privacy-btn-learn {
        width: 100%;
        text-align: center;
    }
}