/**
 * FORMA STUDIO 3 - Frontend Stylesheet
 * Minimalist Monochrome (Black & White) Design System
 */

/* ==========================================
   CSS VARIABLES & GLOBAL DESIGN TOKENS
   ========================================== */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --bg-tertiary: #fafafa;

    --text-primary: #000000;
    --text-secondary: #1a1a1a;
    --text-muted: #7f7f7f;

    --accent: #000000;
    --accent-hover: #333333;
    --accent-glow: rgba(0, 0, 0, 0.05);

    --border: #e5e5e5;
    --border-light: #f0f0f0;

    --font-primary: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-header: 'Jura', sans-serif;

    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.2s ease;
}

/* Force light theme colors - strip default dark theme options */
[data-theme="dark"] {
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --bg-tertiary: #fafafa;
    --text-primary: #000000;
    --text-secondary: #1a1a1a;
    --text-muted: #7f7f7f;
    --border: #e5e5e5;
    --border-light: #f0f0f0;
}

/* ==========================================
   BASE RESET & UTILITIES
   ========================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Accessibility Utility */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

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

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-header);
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    line-height: 1.2;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: #cccccc;
}
::-webkit-scrollbar-thumb:hover {
    background: #000000;
}

/* ==========================================
   LAYOUT STRUCTURE
   ========================================== */
.app-layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-main-content {
    flex: 1 0 auto;
    padding: 120px 40px 60px 40px; /* Padding top to offset fixed header */
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
}

/* ==========================================
   TOP HEADER NAVIGATION
   ========================================== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.header-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-brand {
    display: flex;
    align-items: center;
}

.header-logo {
    height: 38px;
    width: auto;
    display: block;
}

.mobile-toggle-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.header-navigation {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu li a {
    font-family: var(--font-header);
    font-size: 0.95rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    padding: 10px 5px;
    display: inline-block;
    position: relative;
}

/* Hover vertical lines effect: | TEXT | */
.nav-menu li a::before,
.nav-menu li a::after {
    content: '|';
    opacity: 0;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    transition: opacity 0.2s ease, transform 0.2s ease;
    font-weight: 300;
}

.nav-menu li a::before {
    left: -12px;
    transform: translateY(-50%) translateX(-4px);
}

.nav-menu li a::after {
    right: -12px;
    transform: translateY(-50%) translateX(4px);
}

.nav-menu li a:hover::before,
.nav-menu li.active a::before {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

.nav-menu li a:hover::after,
.nav-menu li.active a::after {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-header);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    border-left: 1px solid var(--border);
    padding-left: 20px;
}

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

.lang-switcher a.active,
.lang-switcher a:hover {
    color: var(--text-primary);
}

.lang-separator {
    color: var(--border);
    font-weight: 300;
}

/* ==========================================
   PORTFOLIO GRID SYSTEM (HOMEPAGE)
   ========================================== */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 20px;
}

.portfolio-card {
    position: relative;
    background-color: var(--bg-primary);
    overflow: hidden;
}

.card-media-wrapper {
    position: relative;
    padding-top: 70%; /* Aspect ratio around 3:2 */
    overflow: hidden;
    background-color: var(--bg-tertiary);
}

.card-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.portfolio-card:hover .card-img {
    transform: scale(1.04);
}

/* Overlay showing ONLY project title on hover */
.card-hover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.95);
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    text-align: center;
    transition: opacity 0.3s ease;
}

.portfolio-card:hover .card-hover-overlay {
    opacity: 1;
}

.card-content-overlay {
    transform: translateY(10px);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.portfolio-card:hover .card-content-overlay {
    transform: translateY(0);
}

.card-content-overlay .card-title {
    font-family: var(--font-header);
    font-size: 1.4rem;
    color: #000000;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Placeholder card fallback */
.placeholder-img {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--text-muted);
}

/* Filter Banner */
.filter-header-banner {
    border-bottom: 1px solid var(--border);
    padding-bottom: 25px;
    margin-bottom: 40px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.filter-label {
    font-family: var(--font-header);
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 5px;
}

.filter-title {
    font-size: 1.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.clear-filter {
    font-family: var(--font-header);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.clear-filter:hover {
    color: var(--text-primary);
}

/* ==========================================
   PORTFOLIO DETAILS PAGE (2/3 + 1/3)
   ========================================== */
.portfolio-detail-container {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

/* Left Column: Stacked Images */
.detail-gallery-column {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.detail-gallery-image img {
    width: 100%;
    height: auto;
}

.detail-no-images {
    text-align: center;
    padding: 80px 40px;
    border: 1px dashed var(--border);
    color: var(--text-muted);
}

/* Right Column: Info Panel */
.detail-info-column {
    flex: 1;
    position: sticky;
    top: 120px;
}

.sticky-info-panel {
    background-color: var(--bg-primary);
    padding: 0 10px;
}

.detail-category {
    font-family: var(--font-header);
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 10px;
}

.detail-title {
    font-size: 2.2rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.15;
    margin-bottom: 25px;
}

.panel-divider {
    border: 0;
    height: 1px;
    background-color: var(--border);
    margin: 30px 0;
}

.detail-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

.detail-description p {
    margin-bottom: 15px;
}

.section-meta-label {
    display: block;
    font-family: var(--font-header);
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.tags-capsules-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-capsule {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    padding: 4px 10px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.tag-capsule:hover {
    background-color: #000000;
    color: #ffffff;
    border-color: #000000;
}

/* Detail Navigation Row */
.detail-navigation-row {
    margin-top: 40px;
    display: flex;
    gap: 12px;
    justify-content: flex-start;
}

.nav-nav-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
}

.nav-nav-btn:hover:not(.disabled) {
    background-color: #000000;
    color: #ffffff;
    border-color: #000000;
}

.nav-nav-btn.disabled {
    opacity: 0.2;
    cursor: not-allowed;
}

/* ==========================================
   CLIENTS VIEW (Grayscale-to-Color)
   ========================================== */
.clients-page {
    max-width: 1000px;
    margin: 0 auto;
}

.page-title {
    font-size: 2.2rem;
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 50px;
    letter-spacing: 1px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 20px;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.client-card {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-primary);
}

.client-logo-wrapper {
    width: 100%;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    border: 1px solid var(--border-light);
}

.client-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    /* Clean CSS transition grayscale to original color */
    filter: grayscale(100%);
    opacity: 0.55;
    transition: filter 0.4s ease, opacity 0.4s ease;
}

.client-card:hover .client-logo {
    filter: grayscale(0%);
    opacity: 1;
}

/* ==========================================
   CONTACT PAGE & FORMS (Minimalist No-Icons)
   ========================================== */
.contact-page-container {
    max-width: 1100px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    margin-top: 20px;
}

.contact-subtitle {
    font-family: var(--font-header);
    font-size: 1.4rem;
    text-transform: uppercase;
    font-weight: 500;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.contact-intro {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.details-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 45px;
}

.detail-item {
    display: flex;
    align-items: flex-start;
}

.item-content .label {
    display: block;
    font-family: var(--font-header);
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.item-content .value {
    font-size: 1.1rem;
    font-weight: 400;
}

.contact-social-section .social-label {
    display: block;
    font-family: var(--font-header);
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.social-links-grid {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.social-badge {
    padding: 8px 16px;
    border: 1px solid var(--border);
    font-size: 0.85rem;
    text-transform: uppercase;
    font-family: var(--font-header);
    letter-spacing: 1px;
}

.social-badge:hover {
    background-color: #000000;
    color: #ffffff;
    border-color: #000000;
}

/* Contact form controls styling */
.contact-form-panel {
    background-color: var(--bg-primary);
}

.form-group {
    margin-bottom: 25px;
}

.form-row {
    display: flex;
    gap: 20px;
}

.col-6 {
    flex: 1;
}

label {
    display: block;
    font-family: var(--font-header);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.required {
    color: #990000;
}

.form-control {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 14px 18px;
    transition: border-color 0.2s ease;
}

.form-control:focus {
    border-color: #000000;
}

textarea.form-control {
    resize: vertical;
}

.recaptcha-wrapper {
    margin-top: 15px;
}

/* Button UI */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-header);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition-fast);
}

.btn-primary {
    background-color: #000000;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #333333;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Alerts */
.alert {
    padding: 14px 20px;
    margin-bottom: 25px;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.alert-success {
    background-color: #f6fdf9;
    border-color: #27ae60;
    color: #27ae60;
}

.alert-danger {
    background-color: #fdf6f6;
    border-color: #c0392b;
    color: #c0392b;
}

/* ==========================================
   STATIC PAGES STYLING
   ========================================== */
.static-page-container {
    max-width: 900px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 40px;
}

.page-content-body {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.rich-text-content p {
    margin-bottom: 24px;
}

.rich-text-content h2 {
    font-size: 1.6rem;
    font-weight: 500;
    text-transform: uppercase;
    margin: 40px 0 20px 0;
}

.rich-text-content h3 {
    font-size: 1.3rem;
    font-weight: 500;
    text-transform: uppercase;
    margin: 30px 0 15px 0;
}

.rich-text-content ul,
.rich-text-content ol {
    margin-bottom: 24px;
    padding-left: 20px;
}

.rich-text-content li {
    margin-bottom: 8px;
}

.rich-text-content blockquote {
    border-left: 3px solid #000000;
    padding-left: 20px;
    margin: 30px 0;
    font-style: italic;
    color: var(--text-primary);
}

/* ==========================================
   FOOTER
   ========================================== */
.app-footer {
    border-top: 1px solid var(--border);
    padding: 40px 0;
    margin-top: 80px;
    background-color: var(--bg-primary);
}

.footer-container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-info {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-socials {
    display: flex;
    gap: 20px;
}

.footer-socials a {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.footer-socials a:hover {
    color: #000000;
}

/* ==========================================
   ANIMATIONS & EFFECTS
   ========================================== */
.animate-fade-in {
    opacity: 0;
    animation: fadeIn 0.8s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================== */
@media (max-width: 1200px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
}

@media (max-width: 1000px) {
    .header-container {
        padding: 0 20px;
    }
    .app-main-content {
        padding: 100px 20px 40px 20px;
    }
    .footer-container {
        padding: 0 20px;
    }
    .portfolio-detail-container {
        flex-direction: column-reverse;
        gap: 40px;
    }
    .detail-info-column {
        position: static;
        width: 100%;
    }
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .mobile-toggle-btn {
        display: block;
    }

    .header-navigation {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        border-bottom: 1px solid var(--border);
        padding: 30px 20px;
        gap: 30px;
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.4s, visibility 0.4s;
    }

    .header-navigation.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }
    
    .lang-switcher {
        border-left: none;
        padding-left: 0;
        border-top: 1px solid var(--border);
        padding-top: 20px;
        justify-content: flex-start;
    }

    .form-row {
        flex-direction: column;
        gap: 0;
    }
}