/* =====================================================
   Architectural Prestige - Design System
   High-Contrast Minimalism, Sharp Geometry, Serif/Sans Pairing
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bodoni+Moda:ital,opsz,wght@0,6..96,400..900;1,6..96,400..900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
   /* --- Colors --- */
   --surface: #f8f9fa;
   --surface-dim: #d9dadb;
   --surface-bright: #f8f9fa;
   --surface-container-lowest: #ffffff;
   --surface-container-low: #f3f4f5;
   --surface-container: #edeeef;
   --surface-container-high: #e7e8e9;
   --surface-container-highest: #e1e3e4;
   --on-surface: #191c1d;
   --on-surface-variant: #444748;
   --inverse-surface: #2e3132;
   --inverse-on-surface: #f0f1f2;
   --outline: #747878;
   --outline-variant: #c4c7c7;
   --surface-tint: #5f5e5e;
   
   --primary: #000000;          /* Obsidian */
   --on-primary: #ffffff;
   --primary-container: #1c1b1b;
   --on-primary-container: #858383;
   --inverse-primary: #c8c6c5;
   
   --secondary: #7b5728;        /* Accent: Warm Copper */
   --on-secondary: #ffffff;
   --secondary-container: #fdcc92;
   --on-secondary-container: #785526;
   
   --tertiary: #000000;
   --on-tertiary: #ffffff;
   --tertiary-container: #1b1c1c;
   --on-tertiary-container: #848484;
   
   --error: #ba1a1a;
   --on-error: #ffffff;
   --error-container: #ffdad6;
   --on-error-container: #93000a;
   
   --background: #f8f9fa;
   --on-background: #191c1d;
   
   /* --- Typography --- */
   --font-display: 'Bodoni Moda', serif;
   --font-body: 'Inter', -apple-system, sans-serif;
   
   /* --- Spacing --- */
   --spacing-unit: 8px;
   --spacing-gutter: 32px;
   --margin-desktop: 80px;
   --margin-mobile: 24px;
   --section-gap: 160px;
}

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

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

body {
   font-family: var(--font-body);
   color: var(--on-background);
   background: var(--background);
   line-height: 1.6;
   -webkit-font-smoothing: antialiased;
}

/* Base Headings */
h1, h2, h3, h4, h5, h6 {
   font-family: var(--font-display);
   color: var(--primary);
   font-weight: 500;
   line-height: 1.2;
}

a {
   color: inherit;
   text-decoration: none;
   transition: opacity 0.3s, color 0.3s;
}

a:hover {
   opacity: 0.8;
}

img {
   max-width: 100%;
   height: auto;
   display: block;
   border-radius: 0 !important;
}

button, input, textarea, select {
   font-family: var(--font-body);
   border-radius: 0px !important;
}

button {
   cursor: pointer;
   border: none;
   background: none;
}

.placeholder-img {
   background: linear-gradient(135deg, var(--surface-container-high), var(--surface-dim));
   width: 100%;
   height: 100%;
   min-height: 300px;
   border-radius: 0px !important;
}

/* --- Fade In Animation --- */
.fade-in {
   opacity: 0;
   transform: translateY(30px);
   transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
   opacity: 1;
   transform: translateY(0);
}

/* =====================================================
   HEADER (Glassmorphism, 20px blur, 90% white opacity)
   ===================================================== */
.site-header {
   position: fixed;
   top: 0;
   left: 0;
   right: 0;
   z-index: 1000;
   background: rgba(255, 255, 255, 0.9);
   backdrop-filter: blur(20px);
   -webkit-backdrop-filter: blur(20px);
   border-bottom: 1px solid var(--outline-variant);
}

.header-inner {
   max-width: 1440px;
   margin: 0 auto;
   padding: 0 var(--margin-desktop);
   display: flex;
   align-items: center;
   justify-content: space-between;
   height: 80px;
}

.logo {
   font-family: var(--font-display);
   font-size: 1.5rem;
   font-weight: 700;
   letter-spacing: -0.02em;
   text-transform: uppercase;
   display: flex;
   align-items: center;
   height: 100%;
   color: var(--primary);
}

.logo img {
   height: 56px;
   width: auto;
   object-fit: contain;
   border-radius: 0 !important;
}

.main-nav {
   display: flex;
   gap: 36px;
   align-items: center;
}

.main-nav a {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   padding: 6px 0;
   border-bottom: 2px solid transparent;
   transition: border-color 0.3s, opacity 0.3s, color 0.3s;
   color: var(--on-surface-variant);
}

.main-nav a.active {
   border-bottom-color: var(--primary);
   color: var(--primary);
   font-weight: 700;
}

.main-nav a:hover {
   opacity: 1;
   border-bottom-color: var(--secondary); /* Warm Copper */
   color: var(--primary);
}

.lang-switch {
   background: var(--primary) !important;
   color: var(--on-primary) !important;
   border: 1px solid var(--primary) !important;
   border-radius: 0px !important;
   padding: 8px 18px !important;
   font-size: 12px !important; /* label-sm */
   font-weight: 600 !important;
   letter-spacing: 0.05em !important;
   text-transform: uppercase !important;
   transition: background 0.3s, border-color 0.3s, color 0.3s !important;
}

.lang-switch:hover {
   background: var(--secondary) !important;
   border-color: var(--secondary) !important;
   color: var(--on-secondary) !important;
   opacity: 1 !important;
}

.mobile-toggle {
   display: none;
   flex-direction: column;
   gap: 5px;
   padding: 8px;
}

.mobile-toggle span {
   width: 24px;
   height: 2px;
   background: var(--primary);
   transition: 0.3s;
}

/* =====================================================
   HERO (Modernist High-Contrast Intro)
   ===================================================== */
.hero {
   min-height: 100vh;
   display: flex;
   flex-direction: column;
   justify-content: center;
   align-items: center;
   text-align: center;
   padding: 120px var(--margin-desktop) 80px;
   position: relative;
   overflow: hidden;
   background: var(--primary); /* Obsidian background */
   color: var(--on-primary);
}

.hero-video {
   position: absolute;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   object-fit: cover;
   z-index: 1;
}

.hero-overlay {
   position: absolute;
   top: 0;
   left: 0;
   width: 100%;
   height: 100%;
   background: rgba(0, 0, 0, 0.5);
   z-index: 2;
}

.hero-content {
   max-width: 800px;
   position: relative;
   z-index: 3;
}

.hero-subtitle {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--secondary-container); /* Subtle highlight or copper-like */
   display: block;
   margin-bottom: 24px;
}

.hero-title {
   font-family: var(--font-display);
   font-size: clamp(3rem, 6vw, 72px); /* display-lg */
   font-weight: 700;
   line-height: 1.1;
   letter-spacing: -0.02em;
   margin-bottom: 24px;
   color: var(--on-primary);
}

.hero-desc {
   font-family: var(--font-body);
   font-size: 18px; /* body-lg */
   color: var(--inverse-on-surface);
   max-width: 580px;
   margin: 0 auto 40px;
   line-height: 1.6;
}

.hero-cta {
   display: inline-block;
   background: var(--on-primary);
   color: var(--primary);
   padding: 16px 40px;
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   border: 1px solid var(--on-primary);
   border-radius: 0px !important;
   transition: background 0.3s, border-color 0.3s, color 0.3s, transform 0.3s;
}

.hero-cta:hover {
   background: var(--secondary); /* Warm Copper */
   border-color: var(--secondary);
   color: var(--on-secondary);
   transform: translateY(-2px);
   opacity: 1;
}

.hero-scroll {
   position: absolute;
   bottom: 40px;
   display: flex;
   flex-direction: column;
   align-items: center;
   gap: 8px;
   font-size: 12px; /* label-sm */
   letter-spacing: 0.05em;
   text-transform: uppercase;
   color: rgba(255, 255, 255, 0.6);
   z-index: 3;
}

/* =====================================================
   MANIFESTO (Asymmetrical layout and high space)
   ===================================================== */
.manifesto {
   padding: var(--section-gap) var(--margin-desktop);
   text-align: center;
   max-width: 960px;
   margin: 0 auto;
}

.manifesto-label {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--secondary); /* Warm Copper accent */
   display: block;
   margin-bottom: 32px;
}

.manifesto-text {
   font-family: var(--font-display);
   font-size: clamp(1.8rem, 3.5vw, 32px); /* headline-md */
   font-style: normal; /* High prestige, remove default italic if it looks like print */
   font-weight: 500;
   line-height: 1.4;
   color: var(--primary);
   border: none;
   padding: 0;
}

.manifesto-line {
   width: 80px;
   height: 1px;
   background: var(--primary); /* Obsidian divider */
   margin: 48px auto 0;
}

/* =====================================================
   FEATURED PROJECT
   ===================================================== */
.featured-project {
   padding: 0 var(--margin-desktop) var(--section-gap);
}

.featured-inner {
   display: grid;
   grid-template-columns: 1.2fr 1fr; /* Asymmetric grid */
   gap: 48px;
   max-width: 1440px;
   margin: 0 auto;
   align-items: center;
}

.featured-image {
   overflow: hidden;
   border-radius: 0px !important;
}

.featured-image img {
   width: 100%;
   height: 550px;
   object-fit: cover;
   border-radius: 0px !important;
   transition: transform 0.6s ease;
}

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

.featured-info {
   padding: 40px;
   display: flex;
   flex-direction: column;
   justify-content: center;
}

.featured-label {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--on-surface-variant);
   margin-bottom: 16px;
}

.featured-title {
   font-family: var(--font-display);
   font-size: 48px; /* headline-lg */
   font-weight: 600;
   line-height: 1.2;
   color: var(--primary);
   margin-bottom: 24px;
}

.featured-desc {
   font-family: var(--font-body);
   font-size: 18px; /* body-lg */
   color: var(--on-surface-variant);
   line-height: 1.6;
   margin-bottom: 32px;
}

.featured-link {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--primary);
   display: inline-block;
   padding-bottom: 4px;
   border-bottom: 1px solid var(--primary);
   align-self: start;
   transition: color 0.3s, border-color 0.3s;
}

.featured-link:hover {
   color: var(--secondary); /* Warm Copper */
   border-color: var(--secondary);
   opacity: 1;
}

/* =====================================================
   PROJECTS GRID (Homepage - Surface background)
   ==================================================== */
.projects-grid {
   padding: var(--section-gap) var(--margin-desktop);
   background: var(--surface); /* Subtle light gray block */
   border-top: 1px solid var(--outline-variant);
   border-bottom: 1px solid var(--outline-variant);
}

.projects-grid-inner {
   max-width: 1440px;
   margin: 0 auto;
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 32px;
}

.project-card {
   display: block;
   transition: transform 0.3s, opacity 0.3s;
   border-radius: 0px !important;
}

.project-card:hover {
   transform: translateY(-6px);
   opacity: 1;
}

.project-card-img {
   overflow: hidden;
   aspect-ratio: 4/3;
   margin-bottom: 20px;
   border-radius: 0px !important;
   border: 1px solid var(--outline-variant);
}

.project-card-img img {
   width: 100%;
   height: 100%;
   object-fit: cover;
   border-radius: 0px !important;
   transition: transform 0.5s;
}

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

.project-card h3 {
   font-family: var(--font-display);
   font-size: 24px; /* headline-sm */
   font-weight: 500;
   line-height: 1.4;
   color: var(--primary);
   margin-bottom: 8px;
}

.project-meta {
   font-family: var(--font-body);
   font-size: 12px; /* label-sm */
   font-weight: 500;
   letter-spacing: 0.05em;
   text-transform: uppercase;
   color: var(--on-surface-variant);
}

/* =====================================================
   NEWS SECTION (Homepage)
   ===================================================== */
.news-section {
   padding: var(--section-gap) var(--margin-desktop);
   max-width: 1440px;
   margin: 0 auto;
}

.news-header {
   display: flex;
   justify-content: space-between;
   align-items: baseline;
   margin-bottom: 48px;
   border-bottom: 1px solid var(--primary); /* Obsidian major divider */
   padding-bottom: 20px;
}

.news-title {
   font-family: var(--font-display);
   font-size: 48px; /* headline-lg */
   font-weight: 600;
   color: var(--primary);
}

.news-view-all {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--primary);
   border-bottom: 1px solid var(--primary);
   padding-bottom: 2px;
}

.news-view-all:hover {
   color: var(--secondary);
   border-color: var(--secondary);
   opacity: 1;
}

.news-grid {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 32px;
}

.news-card {
   display: block;
   transition: transform 0.3s, opacity 0.3s;
   border-radius: 0px !important;
}

.news-card:hover {
   transform: translateY(-6px);
   opacity: 1;
}

.news-card-img {
   overflow: hidden;
   aspect-ratio: 4/3;
   margin-bottom: 20px;
   border-radius: 0px !important;
   border: 1px solid var(--outline-variant);
}

.news-card-img img {
   width: 100%;
   height: 100%;
   object-fit: cover;
   border-radius: 0px !important;
}

.news-category {
   font-family: var(--font-body);
   font-size: 12px; /* label-sm */
   font-weight: 500;
   letter-spacing: 0.05em;
   text-transform: uppercase;
   color: var(--secondary); /* Warm Copper accent */
}

.news-card h3 {
   font-family: var(--font-display);
   font-size: 24px; /* headline-sm */
   font-weight: 500;
   margin: 12px 0;
   line-height: 1.4;
   color: var(--primary);
}

.news-link {
   font-family: var(--font-body);
   font-size: 12px; /* label-sm */
   font-weight: 600;
   letter-spacing: 0.05em;
   text-transform: uppercase;
   color: var(--primary);
   border-bottom: 1px solid var(--primary);
   padding-bottom: 2px;
   display: inline-block;
}

.news-card:hover .news-link {
   color: var(--secondary);
   border-color: var(--secondary);
}

/* =====================================================
   STORY SECTION (Philosophy)
   ===================================================== */
.story-section {
   padding: 0 var(--margin-desktop) var(--section-gap);
}

.story-inner {
   max-width: 1240px;
   margin: 0 auto;
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 80px;
   align-items: center;
}

.story-text h2 {
   font-family: var(--font-display);
   font-size: 48px; /* headline-lg */
   font-weight: 600;
   color: var(--primary);
   margin-bottom: 24px;
}

.story-body {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   line-height: 1.7;
}

.story-image {
   overflow: hidden;
   border-radius: 0px !important;
}

.story-placeholder {
   aspect-ratio: 1;
   border-radius: 0px !important;
   background: linear-gradient(135deg, var(--primary-container), var(--primary));
}

/* =====================================================
   VALUES SECTION (Philosophy)
   ===================================================== */
.values-section {
   padding: 120px var(--margin-desktop);
   border-top: 1px solid var(--outline-variant);
   border-bottom: 1px solid var(--outline-variant);
   background: var(--surface); /* Tonal Layering */
}

.values-grid {
   max-width: 1240px;
   margin: 0 auto;
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 48px;
   text-align: center;
}

.value-label {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--secondary); /* Warm Copper */
   display: block;
   margin-bottom: 16px;
}

.value-card h3 {
   font-family: var(--font-display);
   font-size: 32px; /* headline-md */
   font-weight: 500;
   color: var(--primary);
   margin-bottom: 16px;
}

.value-card p {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   line-height: 1.6;
}

/* =====================================================
   PROCESS SECTION (Philosophy)
   ===================================================== */
.process-section {
   padding: var(--section-gap) var(--margin-desktop);
   max-width: 1240px;
   margin: 0 auto;
}

.process-header {
   display: grid;
   grid-template-columns: 1fr 1.5fr;
   gap: 80px;
}

.process-left h2 {
   font-family: var(--font-display);
   font-size: 48px; /* headline-lg */
   font-weight: 600;
   color: var(--primary);
   margin-bottom: 24px;
}

.process-left p {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   line-height: 1.7;
}

.process-step {
   display: flex;
   gap: 32px;
   padding: 40px 0;
   border-top: 1px solid var(--outline-variant);
}

.process-step:first-child {
   border-top: 1px solid var(--primary); /* Obsidian major boundary */
}

.step-number {
   font-family: var(--font-display);
   font-size: 4.5rem; /* Large scale Bodoni */
   font-weight: 700;
   color: var(--secondary); /* Accent: Warm Copper */
   flex-shrink: 0;
   line-height: 0.8;
}

.step-content h3 {
   font-family: var(--font-display);
   font-size: 32px; /* headline-md */
   font-weight: 500;
   color: var(--primary);
   margin-bottom: 12px;
}

.step-content p {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   line-height: 1.6;
}

/* =====================================================
   PORTFOLIO PAGE
   ===================================================== */
.portfolio-header {
   padding: 160px var(--margin-desktop) 64px;
   max-width: 1440px;
   margin: 0 auto;
   display: grid;
   grid-template-columns: 1.2fr 1fr;
   gap: 80px;
   align-items: end;
}

.portfolio-subtitle {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--secondary);
   display: block;
   margin-bottom: 16px;
}

.portfolio-title {
   font-family: var(--font-display);
   font-size: clamp(3rem, 5vw, 72px); /* display-lg */
   font-weight: 700;
   line-height: 1.1;
   letter-spacing: -0.02em;
   color: var(--primary);
}

.portfolio-header-right p {
   font-family: var(--font-body);
   font-size: 18px; /* body-lg */
   color: var(--on-surface-variant);
   line-height: 1.6;
}

.portfolio-divider {
   max-width: 1440px;
   margin: 0 auto;
   padding: 0 var(--margin-desktop);
}

.portfolio-divider::after {
   content: '';
   display: block;
   height: 1px;
   background: var(--primary); /* Obsidian divider */
}

.portfolio-main {
   max-width: 1440px;
   margin: 0 auto;
   padding: 64px var(--margin-desktop) var(--section-gap);
   display: grid;
   grid-template-columns: 320px 1fr;
   gap: 64px;
}

/* Portfolio Menu */
.portfolio-menu {
   border-right: 1px solid var(--outline-variant);
   padding-right: 40px;
}

.portfolio-menu-item {
   display: block;
   padding: 16px 0;
   border-left: 3px solid transparent;
   padding-left: 20px;
   transition: border-color 0.3s, background 0.3s;
   margin-bottom: 8px;
   border-radius: 0px !important;
}

.portfolio-menu-item h3 {
   font-family: var(--font-display);
   font-size: 24px; /* headline-sm */
   font-weight: 500;
   margin-bottom: 4px;
   color: var(--outline);
   transition: color 0.3s;
}

.portfolio-menu-item span {
   font-family: var(--font-body);
   font-size: 12px; /* label-sm */
   font-weight: 500;
   letter-spacing: 0.05em;
   text-transform: uppercase;
   color: var(--outline-variant);
   transition: color 0.3s;
}

.portfolio-menu-item.active {
   border-left-color: var(--primary);
   background: var(--surface-container-low);
}

.portfolio-menu-item.active h3 {
   color: var(--primary);
   font-weight: 600;
}

.portfolio-menu-item.active span {
   color: var(--secondary); /* Highlight copper color */
}

.portfolio-menu-item:hover {
   opacity: 1;
}

.portfolio-menu-item:hover h3 {
   color: var(--primary);
}

/* Portfolio Detail */
.detail-image {
   overflow: hidden;
   margin-bottom: 24px;
   border-radius: 0px !important;
   border: 1px solid var(--outline-variant);
}

.detail-image img {
   width: 100%;
   max-height: 600px;
   object-fit: cover;
   border-radius: 0px !important;
}

.detail-gallery {
   display: flex;
   gap: 12px;
   margin-top: 24px;
   overflow-x: auto;
   padding-bottom: 8px;
}

.gallery-thumb {
   width: 120px;
   height: 90px;
   object-fit: cover;
   cursor: pointer;
   opacity: 0.6;
   transition: opacity 0.3s, border-color 0.3s;
   border: 1px solid var(--outline-variant);
   border-radius: 0px !important;
}

.gallery-thumb:hover {
   opacity: 1;
   border-color: var(--primary);
}

.detail-placeholder {
   min-height: 450px;
   border-radius: 0px !important;
}

.detail-content {
   display: grid;
   grid-template-columns: 1.6fr 1fr;
   gap: 60px;
   margin-top: 40px;
}

.detail-text h2 {
   font-family: var(--font-display);
   font-size: 48px; /* headline-lg */
   font-weight: 600;
   color: var(--primary);
   margin-bottom: 20px;
}

.detail-text p {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   line-height: 1.7;
}

.meta-item {
   margin-bottom: 24px;
   border-bottom: 1px solid var(--outline-variant);
   padding-bottom: 12px;
}

.meta-label {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   color: var(--secondary); /* Warm copper accent label */
   text-transform: uppercase;
   margin-bottom: 6px;
   display: block;
}

.meta-value {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--primary);
   font-weight: 500;
}

/* =====================================================
   INQUIRY PAGE
   ===================================================== */
.inquiry-hero {
   padding: 160px var(--margin-desktop) 32px;
   max-width: 1440px;
   margin: 0 auto;
}

.inquiry-title {
   font-family: var(--font-display);
   font-size: clamp(3rem, 5vw, 72px); /* display-lg */
   font-weight: 700;
   letter-spacing: -0.02em;
   color: var(--primary);
}

.inquiry-divider {
   height: 1px;
   background: var(--primary); /* Obsidian major divider */
   margin-top: 32px;
}

.inquiry-contact {
   max-width: 1440px;
   margin: 0 auto;
   padding: 80px var(--margin-desktop);
   display: grid;
   grid-template-columns: 1fr 1.2fr;
   gap: 80px;
}

.contact-label {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--secondary); /* Copper accent */
   display: block;
   margin-bottom: 12px;
}

.contact-value {
   font-family: var(--font-display);
   font-size: 32px; /* headline-md */
   font-weight: 500;
   line-height: 1.3;
   margin-bottom: 8px;
   color: var(--primary);
}

.contact-details {
   margin-top: 40px;
}

.contact-note {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   margin-top: 40px;
   padding-top: 24px;
   border-top: 1px solid var(--outline-variant);
   line-height: 1.7;
}

.map-placeholder {
   width: 100%;
   aspect-ratio: 4/3;
   background: var(--surface-container);
   border: 1px solid var(--outline-variant);
   border-radius: 0px !important;
   overflow: hidden;
}

.map-placeholder iframe {
   width: 100%;
   height: 100%;
   border-radius: 0px !important;
}

.inquiry-form-section {
   max-width: 1440px;
   margin: 0 auto;
   padding: 80px var(--margin-desktop) var(--section-gap);
   border-top: 1px solid var(--primary); /* Obsidian divider */
}

.form-header {
   margin-bottom: 48px;
}

.form-header h2 {
   font-family: var(--font-display);
   font-size: 48px; /* headline-lg */
   font-weight: 600;
   color: var(--primary);
   margin-bottom: 16px;
}

.form-header p {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   max-width: 580px;
   line-height: 1.6;
}

.form-row {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 40px;
}

.form-group {
   margin-bottom: 32px;
}

.form-group label {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--primary);
   display: block;
   margin-bottom: 12px;
}

.form-group input,
.form-group textarea {
   width: 100%;
   padding: 14px 0;
   border: none;
   border-bottom: 1px solid var(--outline-variant);
   font-size: 16px;
   font-family: var(--font-body); /* inputs are functional Inter */
   color: var(--primary);
   background: transparent;
   outline: none;
   border-radius: 0px !important;
   transition: border-color 0.3s;
}

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

.form-group textarea {
   resize: vertical;
   min-height: 120px;
}

.btn-submit {
   display: block;
   margin: 40px auto 0;
   background: var(--primary); /* Solid obsidian */
   color: var(--on-primary);
   padding: 18px 64px;
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   border: 1px solid var(--primary);
   border-radius: 0px !important;
   transition: background 0.3s, border-color 0.3s, color 0.3s;
}

.btn-submit:hover {
   background: var(--secondary); /* Warm copper on hover */
   border-color: var(--secondary);
   color: var(--on-secondary);
}

.alert {
   padding: 16px 24px;
   margin-bottom: 32px;
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   border-radius: 0px !important;
}

.alert-success {
   background: var(--surface-container-low);
   color: var(--on-secondary-container);
   border: 1px solid var(--secondary-container);
}

.alert-error {
   background: var(--error-container);
   color: var(--on-error-container);
   border: 1px solid var(--error);
}

/* =====================================================
   NEWS DETAIL
   ===================================================== */
.news-detail {
   max-width: 960px;
   margin: 0 auto;
   padding: 160px var(--margin-desktop) var(--section-gap);
}

.news-detail-header {
   margin-bottom: 48px;
}

.back-link {
   font-family: var(--font-body);
   font-size: 12px; /* label-sm */
   font-weight: 600;
   letter-spacing: 0.05em;
   text-transform: uppercase;
   color: var(--outline);
   display: inline-block;
   margin-bottom: 24px;
   transition: color 0.3s;
}

.back-link:hover {
   color: var(--secondary);
   opacity: 1;
}

.news-detail-cat {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   text-transform: uppercase;
   color: var(--secondary); /* Warm copper */
   display: block;
   margin-bottom: 16px;
}

.news-detail-header h1 {
   font-family: var(--font-display);
   font-size: 48px; /* headline-lg */
   font-weight: 600;
   line-height: 1.2;
   color: var(--primary);
}

.news-detail-images {
   margin-bottom: 48px;
}

.news-detail-images img {
   width: 100%;
   margin-bottom: 24px;
   border: 1px solid var(--outline-variant);
   border-radius: 0px !important;
}

.news-detail-body {
   font-family: var(--font-body);
   font-size: 18px; /* body-lg */
   line-height: 1.8;
   color: var(--on-surface);
   margin-top: 40px;
}

/* =====================================================
   FOOTER (Spacious, clean, structured)
   ===================================================== */
.site-footer {
   background: var(--surface);
   border-top: 1px solid var(--outline-variant);
   margin-top: 0;
}

.footer-inner {
   max-width: 1440px;
   margin: 0 auto;
   padding: 120px var(--margin-desktop) 80px;
   display: grid;
   grid-template-columns: 1.5fr 1fr 1fr 1fr;
   gap: 48px;
}

.footer-logo {
   font-family: var(--font-display);
   font-size: 1.8rem;
   font-weight: 700;
   color: var(--primary);
   margin-bottom: 16px;
   text-transform: uppercase;
}

.footer-desc {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   line-height: 1.6;
   max-width: 320px;
}

.footer-inner h4 {
   font-family: var(--font-body);
   font-size: 14px; /* label-lg */
   font-weight: 600;
   letter-spacing: 0.1em;
   color: var(--secondary); /* Copper accent */
   margin-bottom: 24px;
   text-transform: uppercase;
}

.footer-nav a,
.footer-contact p {
   display: block;
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--on-surface-variant);
   margin-bottom: 12px;
}

.footer-nav a:hover {
   color: var(--primary);
   opacity: 1;
}

.footer-contact p {
   line-height: 1.5;
}

.social-links {
   display: flex;
   gap: 20px;
}

.social-links a {
   color: var(--on-surface-variant);
   transition: color 0.3s;
}

.social-links a:hover {
   color: var(--secondary);
   opacity: 1;
}

.footer-bottom {
   max-width: 1440px;
   margin: 0 auto;
   padding: 24px var(--margin-desktop);
   border-top: 1px solid var(--outline-variant);
}

.footer-bottom p {
   font-family: var(--font-body);
   font-size: 12px; /* label-sm */
   color: var(--on-surface-variant);
}

.no-data {
   font-family: var(--font-body);
   font-size: 16px; /* body-md */
   color: var(--outline);
   padding: 40px 0;
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
   :root {
      --margin-desktop: 32px;
      --section-gap: 120px;
   }

   .header-inner {
      padding: 0 var(--margin-desktop);
      height: 72px;
   }

   .portfolio-main {
      grid-template-columns: 240px 1fr;
      gap: 32px;
   }
}

@media (max-width: 768px) {
   :root {
      --margin-desktop: var(--margin-mobile); /* 24px */
      --section-gap: 80px;
   }

   .main-nav {
      display: none;
      position: fixed;
      top: 72px;
      left: 0;
      right: 0;
      height: calc(100vh - 72px);
      background: var(--surface-container-lowest);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 28px;
      z-index: 999;
   }

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

   .mobile-toggle {
      display: flex;
   }

   .hero {
      padding: 100px var(--margin-mobile) 60px;
      min-height: 80vh;
   }

   .hero-title {
      font-size: 32px; /* headline-lg-mobile */
      font-weight: 600;
      line-height: 1.2;
   }

   .featured-inner {
      grid-template-columns: 1fr;
      gap: 32px;
   }

   .featured-image img {
      height: 350px;
   }

   .featured-info {
      padding: 20px 0;
   }

   .featured-title {
      font-size: 32px; /* headline-lg-mobile */
   }

   .news-title, .story-text h2, .process-left h2, .detail-text h2, .form-header h2, .news-detail-header h1 {
      font-size: 32px; /* headline-lg-mobile */
   }

   .projects-grid-inner,
   .news-grid,
   .values-grid {
      grid-template-columns: 1fr;
      gap: 40px;
   }

   .story-inner,
   .process-header {
      grid-template-columns: 1fr;
      gap: 40px;
   }

   .portfolio-header {
      grid-template-columns: 1fr;
      padding-top: 120px;
      gap: 24px;
   }

   .portfolio-main {
      grid-template-columns: 1fr;
      gap: 40px;
   }

   .portfolio-menu {
      border-right: none;
      border-bottom: 1px solid var(--outline-variant);
      padding-right: 0;
      padding-bottom: 24px;
      display: flex;
      overflow-x: auto;
      gap: 12px;
   }

   .portfolio-menu-item {
      white-space: nowrap;
      border-left: none;
      border-bottom: 3px solid transparent;
      padding: 10px 20px;
      margin-bottom: 0;
   }

   .portfolio-menu-item.active {
      border-left-color: transparent;
      border-bottom-color: var(--primary);
   }

   .detail-content {
      grid-template-columns: 1fr;
      gap: 32px;
   }

   .inquiry-contact {
      grid-template-columns: 1fr;
      gap: 40px;
   }

   .form-row {
      grid-template-columns: 1fr;
      gap: 0;
   }

   .footer-inner {
      grid-template-columns: 1fr 1fr;
      gap: 40px;
   }
}

@media (max-width: 480px) {
   .footer-inner {
      grid-template-columns: 1fr;
   }
}