/* ============================================
   Gruuw Website Styles
   ============================================

   CUSTOMIZE: Main colors and design tokens are defined
   in the :root section below. Adjust these to change
   the overall look and feel of the site.

   ============================================ */

/* ===========================================
   CSS Custom Properties (Design Tokens)
   =========================================== */
:root {
    /* CUSTOMIZE: Primary colors - warm paper/parchment aesthetic */
    --color-bg: #FAF6F0;
    --color-bg-elevated: #F5F0E8;
    --color-bg-card: #ffffff;

    /* CUSTOMIZE: Text colors */
    --color-text: #1a1a1a;
    --color-text-secondary: #555555;
    --color-text-muted: #888888;

    /* CUSTOMIZE: Brand colors from mascot */
    --color-primary: #4a9a4a;          /* Main green */
    --color-primary-light: #6bc46b;    /* Light green */
    --color-accent: #e8734a;           /* Orange (horn) */
    --color-accent-hover: #f4956f;
    --color-pink: #e86b9a;             /* Pink (cheeks/mouth) */
    --color-yellow: #f4c74a;           /* Yellow (hair) */

    /* CUSTOMIZE: Border and divider colors */
    --color-border: #e8e8e8;
    --color-border-light: #f0f0f0;

    /* Typography */
    --font-sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Layout */
    --max-width: 1400px;
    --nav-height: 160px;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

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

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

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

/* Language-specific font adjustments */
html[lang="jp"] body,
html[lang="ja"] body {
    line-height: 1.8;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

address {
    font-style: normal;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===========================================
   Layout Utilities
   =========================================== */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--space-lg);
    }
}

/* ===========================================
   Navigation
   =========================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: rgba(250, 246, 240, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

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

@media (min-width: 768px) {
    .nav-container {
        padding: 0 var(--space-lg);
    }
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.logo-img {
    height: 140px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
}

.nav-links {
    display: none;
    align-items: center;
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.lang-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.lang-option {
    transition: color var(--transition-fast);
}

.lang-option.active {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.lang-divider {
    color: var(--color-text-muted);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 32px;
    height: 32px;
    padding: 4px;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-btn:hover span {
    background-color: var(--color-primary);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    flex-direction: column;
    gap: var(--space-sm);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.mobile-menu.active {
    display: flex;
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none !important;
    }
}

.mobile-menu a {
    display: block;
    padding: var(--space-sm);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.mobile-menu a:hover {
    background-color: var(--color-bg-elevated);
    color: var(--color-text);
}

.mobile-menu .lang-toggle {
    width: fit-content;
    margin-top: var(--space-xs);
}

/* ===========================================
   Hero Section
   =========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding-top: var(--nav-height);
    position: relative;
}

.hero-split {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    gap: var(--space-xl);
    align-items: center;
}

@media (min-width: 768px) {
    .hero-split {
        padding: var(--space-xl) var(--space-lg);
    }
}

@media (min-width: 900px) {
    .hero-split {
        flex-direction: row-reverse;
        padding: var(--space-2xl) var(--space-lg);
        gap: var(--space-2xl);
        align-items: center;
        justify-content: space-between;
    }
}

.hero-content {
    flex: 1;
    max-width: 500px;
    text-align: center;
}

@media (min-width: 900px) {
    .hero-content {
        text-align: left;
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: var(--space-md);
}

/* Gradient text effect using brand colors */
.hero-title .highlight {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.125rem);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.hero-image {
    flex: 1.2;
    max-width: 720px;
    width: 100%;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
    /* Pixel art should stay crisp */
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    animation: bounce 2s infinite;
}

.scroll-indicator:hover {
    color: var(--color-text);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-8px);
    }
    60% {
        transform: translateY(-4px);
    }
}

/* ===========================================
   Section Common Styles
   =========================================== */
section {
    padding: var(--space-3xl) 0;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: var(--space-xl);
}

/* ===========================================
   Works Section
   =========================================== */
.works {
    background-color: var(--color-bg);
}

.works-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .works-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .works-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.work-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.work-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all var(--transition-base);
}

.work-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.work-card-image {
    aspect-ratio: 16 / 10;
    background-color: var(--color-bg-elevated);
    position: relative;
    overflow: hidden;
}

.work-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

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

.work-card-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
}

.work-card-placeholder span {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border: 1px dashed var(--color-primary);
    border-radius: var(--radius-sm);
}

.work-card-content {
    padding: var(--space-md);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}


.work-card-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
}

.work-card-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.work-card-subtitle {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: 0.125rem;
}

.work-card-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: var(--font-weight-semibold);
    border-radius: 9999px;
    margin-top: auto;
    align-self: flex-start;
}

.chip-play {
    background-color: var(--color-primary);
    color: #ffffff;
}

.work-card-link:hover .chip-play {
    background-color: var(--color-primary-light);
}

.chip-soon {
    background-color: var(--color-bg-elevated);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
}

/* ===========================================
   Language Visibility
   =========================================== */
.jp-only {
    display: none !important;
}

html[lang="ja"] .jp-only {
    display: block !important;
}

html[lang="ja"] .jp-only.company-info-layout {
    display: flex !important;
}

html[lang="ja"] .en-only {
    display: none !important;
}

.offices-grid.en-only {
    display: grid;
}

html[lang="ja"] .offices-grid.en-only {
    display: none !important;
}

/* ===========================================
   About Section
   =========================================== */
.about {
    background-color: var(--color-bg-elevated);
}

.about-content {
    display: grid;
    gap: var(--space-2xl);
}

.about-mission h3,
.about-offices h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.about-mission p {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    max-width: 720px;
}

.offices-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
}

@media (min-width: 640px) {
    .offices-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.office-card {
    background-color: var(--color-bg-card);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.office-location {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-sm);
}

.office-flag {
    font-size: 1.25rem;
}

.office-address {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.office-address strong {
    color: var(--color-text);
}

.office-map {
    margin-top: var(--space-md);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.office-map iframe {
    display: block;
    border-radius: var(--radius-md);
}

/* Company Info Layout (Japanese) */
.company-info-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

@media (min-width: 1024px) {
    .company-info-layout {
        flex-direction: row;
        gap: var(--space-2xl);
    }

    .company-info {
        flex: 1.2;
    }

    .company-maps {
        flex: 1;
    }
}

.company-info {
    background-color: var(--color-bg-card);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.company-table {
    width: 100%;
    border-collapse: collapse;
}

.company-table th,
.company-table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--color-border-light);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
    border-bottom: none;
}

.company-table th {
    width: 120px;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    background-color: var(--color-bg-elevated);
    white-space: nowrap;
}

.company-table td {
    color: var(--color-text-secondary);
}

.company-table td strong {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
}

.company-maps h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.company-maps .office-card {
    margin-bottom: var(--space-md);
}

.company-maps .office-card:last-child {
    margin-bottom: 0;
}

/* ===========================================
   Contact Section
   =========================================== */
.contact {
    background-color: var(--color-bg);
}

.contact-content {
    max-width: 540px;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* Contact Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
}

.form-group input,
.form-group textarea {
    padding: var(--space-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--color-text);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(74, 154, 74, 0.1);
}

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

.form-submit {
    align-self: flex-start;
    padding: var(--space-sm) var(--space-lg);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    color: #ffffff;
    background-color: var(--color-primary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.form-submit:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-1px);
}

.form-submit:active {
    transform: translateY(0);
}

.form-success {
    padding: var(--space-lg);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    text-align: center;
}

.form-success p {
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.contact-alt {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-link {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: var(--space-md);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all var(--transition-base);
}

.contact-link:hover {
    border-color: var(--color-primary);
    transform: translateX(8px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.contact-label {
    font-size: 0.8125rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-email {
    font-size: 1.125rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

/* ===========================================
   Footer
   =========================================== */
.footer {
    background-color: var(--color-bg-elevated);
    padding: var(--space-xl) 0 var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

@media (min-width: 640px) {
    .footer-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
    }
}

.footer-brand .logo-text {
    font-size: 1.25rem;
    display: block;
    margin-bottom: var(--space-xs);
}

.footer-logo-img {
    height: 100px;
    width: auto;
    margin-bottom: var(--space-sm);
}

.footer-tagline {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: var(--space-md);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-text);
}

.footer-bottom {
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

/* ===========================================
   Utility: Focus States (Accessibility)
   =========================================== */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ===========================================
   Utility: Selection Color
   =========================================== */
::selection {
    background-color: var(--color-primary);
    color: #ffffff;
}

/* ===========================================
   Utility: Scrollbar Styling
   =========================================== */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-muted);
}