:root {
    --bg-color: #f9f5e9;
    --text-primary: #000000;
    --text-secondary: #333333;
    --border-color: #dddddd;
    --accent-color: #000000;

    --font-sans: 'Inter', sans-serif;
    --font-serif: 'Playfair Display', serif;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
    font-size: 16px;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1,
h3,
h4,
.logo-name {
    font-family: var(--font-serif);
    font-weight: 700;
    color: var(--text-primary);
}

h2 {
    font-family: var(--font-sans);
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    max-width: 800px;
}

.section-heading {
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.2;
    margin-bottom: 2rem;
}

/* About Hero */
.about-hero-title-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

.about-hero-title-wrapper h1 {
    font-family: var(--font-serif);
    font-size: clamp(4rem, 8vw, 8rem);
    line-height: 1;
    margin: 0;
    font-weight: 400;
    letter-spacing: -0.02em;
}

.about-signature {
    position: absolute;
    right: -60px;
    bottom: -20px;
    width: 250px;
    opacity: 0.8;
    pointer-events: none;
}

.about-caps-text {
    font-family: var(--font-sans);
    text-transform: uppercase;
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    line-height: 1.8;
    letter-spacing: 0.05em;
    max-width: 900px;
    margin: 0 auto;
    font-weight: 500;
}

.pill-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--text-primary);
    border-radius: 50px;
    padding: 0 1rem;
    height: 1.8em;
    vertical-align: middle;
    margin: 0 0.2rem;
}

.icon-inline {
    display: inline-block;
    vertical-align: middle;
    width: 1.2em;
    height: 1.2em;
    margin: 0 0.2rem;
}

.body-text {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.outline-text {
    color: transparent;
    -webkit-text-stroke: 1px var(--text-primary);
    font-style: italic;
}

.text-overline {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

.line-divider {
    width: 100%;
    height: 1px;
    background-color: var(--border-color);
    margin: 4rem 0;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(249, 245, 233, 0.7);
    backdrop-filter: blur(8px);
    /* border-bottom: 1px solid var(--border-color); */
    z-index: 100;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-name {
    font-size: 1.5rem;
}

.logo-divider {
    color: var(--text-secondary);
    font-weight: 300;
}

.logo-role {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lang-dropdown-wrapper {
    position: relative;
    display: inline-block;
}

.lang-dropdown-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.lang-dropdown-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.lang-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 160px;
    display: none;
    flex-direction: column;
    z-index: 200;
    overflow: hidden;
}

.lang-dropdown-menu.show {
    display: flex;
}

.lang-option {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 600;
    font-family: var(--font-sans);
    transition: background-color 0.2s ease;
}

.lang-option:hover {
    background-color: rgba(0, 0, 0, 0.03);
}

.lang-option .flag {
    margin-right: 0.75rem;
    font-size: 1.1rem;
}

.lang-option .lang-name {
    flex-grow: 1;
    padding-right: 0.5rem;
}

.lang-option .check {
    color: #4CAF50;
    /* Green check */
    font-weight: bold;
    opacity: 0;
}

.lang-option.active .check {
    opacity: 1;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.nav-links a:hover {
    opacity: 0.6;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    border-left: 1px solid var(--border-color);
    padding-left: 2rem;
}

.lang-toggle {
    font-size: 0.8rem !important;
    color: var(--text-secondary) !important;
}

.lang-toggle.active {
    color: var(--text-primary) !important;
    font-weight: 700 !important;
}

.lang-div {
    font-size: 0.8rem;
    color: var(--border-color);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--bg-color);
    z-index: 200;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transform: translateY(-100%);
    transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}

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

.close-menu {
    position: absolute;
    top: 2rem;
    right: 5%;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
}

.mobile-link {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    text-decoration: none;
    color: var(--text-primary);
}

.mobile-lang {
    font-family: var(--font-sans);
    font-size: 1rem;
    margin-top: 2rem;
}

/* Hero Section */
.hero-section {
    padding-top: 15rem;
    padding-bottom: 5rem;
}

.page-hero {
    padding-top: 12rem;
    padding-bottom: 2rem;
}

.tm-symbol {
    font-size: 0.4em;
    vertical-align: super;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 2rem;
    transition: all 0.4s ease;
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.projects-grid:hover .project-card:not(:hover) {
    filter: blur(6px);
    opacity: 0.4;
}

.project-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4/3;
    display: block;
    transition: filter 0.4s ease, opacity 0.4s ease, transform 0.4s ease;
}

.project-link-div {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.cover-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.project-thumbnail-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 100%);
    pointer-events: none;
    z-index: 1;
}

.project-card:hover .cover-image {
    transform: scale(1.05);
}

.project-thumbnail-title {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 2;
}

.project-thumbnail-title h2 {
    color: #ffffff;
    font-size: 1.5rem;
    font-family: var(--font-sans);
    font-weight: 600;
}

/* Tags */
.thumbnail-project-tag-link {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    background-color: var(--tag-color, #3898ec);
    color: #000000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.thumbnail-project-tag-link:hover {
    transform: scale(1.05);
}

.thumbnail-project-tag-link img {
    width: 14px;
    height: 14px;
    filter: brightness(0);
}

.tag-icon {
    width: 15px;
    height: 15px;
}

.tags-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
    margin-bottom: 3rem;
}

.project-tag-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    text-decoration: none;
    color: #000;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.project-tag-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* Projects Table/List */
.projects-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    margin-bottom: 4rem;
}

.projects-table-header {
    display: grid;
    grid-template-columns: 80px 1.5fr 1.5fr 80px;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.project-list-row {
    display: grid;
    grid-template-columns: 80px 1.5fr 1.5fr 80px;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: background-color 0.3s ease;
}

.project-list-row:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.col-no {
    font-family: var(--font-sans);
    font-weight: 500;
}

.col-client {
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 1.125rem;
}

.col-services {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.col-services img {
    width: 24px;
    height: 24px;
}

.col-year {
    font-family: var(--font-sans);
    font-weight: 500;
    text-align: left;
}

@media (max-width: 768px) {

    .projects-table-header,
    .project-list-row {
        grid-template-columns: 50px 1fr 1fr 50px;
        gap: 1rem;
    }

    .col-client {
        font-size: 1rem;
    }
}



.view-all-wrapper {
    text-align: center;
    margin-top: 4rem;
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text-primary);
    padding: 0.75rem 2rem;
    border-radius: 40px;
    transition: background-color 0.3s ease;
}

.view-all-link:hover {
    background-color: #EFEAD4;
}

/* Split Grids (About, Services, Detail Info) */
.split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

._2-1-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

._1-2-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}

/* Services Grid (Koto specific) */
.services-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.services-list-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    align-self: center;
    justify-self: center;
}

.service-item-koto {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 1.5rem;
}

.service-icon-svg {
    width: 24px;
    height: 24px;
}

/* FAQ Accordion */
.faq-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    padding-block: 4rem;
}

.split-right {
    display: flex;
    flex-direction: column;
}

/* Minimalist Contact Form */
.minimal-contact-form {
    width: 100%;
}

.minimal-form-group {
    position: relative;
    width: 100%;
}

.minimal-form-group input,
.minimal-form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(0, 0, 0, 0.3);
    padding: 0.5rem 0;
    font-family: var(--font-sans);
    font-size: 1.1rem;
    color: var(--text-primary);
    outline: none;
    border-radius: 0;
    resize: none;
    transition: border-bottom-color 0.3s ease;
}

.minimal-form-group input::placeholder,
.minimal-form-group textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.8;
}

.minimal-form-group input:focus,
.minimal-form-group textarea:focus {
    border-bottom-color: var(--text-primary);
}

.pill-submit-btn {
    background-color: var(--text-primary);
    color: var(--bg-color);
    border: none;
    border-radius: 50px;
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.3s ease, background 0.3s ease;
    display: inline-block;
}

.pill-submit-btn:hover {
    transform: scale(1.05);
    background-color: #000;
}

/* --- Project Pages --- */

.faq-list {
    display: flex;
    flex-direction: column;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1.5rem 0;
    background: none;
    border: none;
    font-size: 1.5rem;
    text-align: left;
    cursor: pointer;
    color: var(--text-primary);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-answer p {
    padding-bottom: 1.5rem;
    color: var(--text-secondary);
}

/* Contact CTA */
.contact-cta-section .faq-question:hover .faq-icon {
    background: var(--tag-color, var(--text-primary));
    color: var(--bg-color);
}

/* --- CONTACT CTA --- */
.contact-cta-section {
    background-color: var(--text-primary);
    color: var(--bg-color);
    padding: 8rem 0;
    text-align: center;
}

.cta-tag {
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    opacity: 0.7;
}

.cta-link {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: var(--bg-color);
    text-decoration: none;
    border-bottom: 2px solid var(--bg-color);
    transition: opacity 0.3s ease;
}

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

/* Footer */
.footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border-color);
}

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

.small-text {
    font-size: 0.875rem;
    margin-top: 1rem;
}

.footer-links-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.footer-link,
.footer-link-text {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--text-primary);
}

/* Project Detail Stacked Images */
.project-detail-images {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-top: 4rem;
}

.project-detail-images img {
    width: 100%;
    height: auto;
    object-fit: contain;
    background-color: #fff;
    border: 1px solid var(--border-color);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

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

/* Contact Page Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    border: 1px solid var(--border-color);
    background-color: transparent;
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-primary);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    background-color: var(--text-primary);
    color: var(--bg-color);
    border: none;
    padding: 1rem 2rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    width: max-content;
    transition: opacity 0.3s ease;
}

.submit-btn:hover {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 992px) {

    .split-grid,
    ._2-1-grid,
    ._1-2-grid,
    .services-wrapper,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero-section {
        padding-top: 10rem;
    }
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.4);
}

/* Loading Skeleton */
.skeleton-bg {
    background: linear-gradient(90deg, rgba(0, 0, 0, 0.05) 25%, rgba(0, 0, 0, 0.1) 50%, rgba(0, 0, 0, 0.05) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite linear;
    color: transparent !important;
}

.skeleton-bg * {
    visibility: hidden;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}