/* ========================================
   RETURN TO THE AXIS - Architectural Visual Identity
   ======================================== */

/* CSS Variables */
:root {
    --bg-warm-ivory: #F6F2E9;
    --primary-deep-blue: #1E2A38;
    --accent-soft-green: #3F6F63;
    --neutral-warm-grey: #8A8478;
    --true-white: #FFFFFF;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-xxl: 8rem;
    
    --transition-smooth: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-warm-ivory);
    color: var(--primary-deep-blue);
    line-height: 1.7;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   LANGUAGE SWITCHER
   ======================================== */
.language-switcher {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 1001;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(246, 242, 233, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.lang-btn {
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    color: var(--neutral-warm-grey);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    transition: var(--transition-smooth);
}

.lang-btn:hover {
    color: var(--primary-deep-blue);
}

.lang-btn.active {
    color: var(--primary-deep-blue);
    font-weight: 600;
}

.lang-separator {
    color: var(--neutral-warm-grey);
    font-size: 0.75rem;
    opacity: 0.5;
}

/* ========================================
   NAVIGATION
   ======================================== */
.main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(246, 242, 233, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(30, 42, 56, 0.08);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--primary-deep-blue);
}

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

.nav-links a {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--neutral-warm-grey);
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a:hover {
    color: var(--primary-deep-blue);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent-soft-green);
    transition: var(--transition-smooth);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--primary-deep-blue);
    transition: var(--transition-smooth);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 64px;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.85;
}

.hero-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(246, 242, 233, 0.3) 0%, rgba(246, 242, 233, 0.7) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 900px;
}

.main-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    font-weight: 400;
    line-height: 1.7;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-md);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.subheadline {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    font-weight: 300;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-primary);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-deep-blue);
    color: var(--true-white);
    border-color: var(--primary-deep-blue);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-deep-blue);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-deep-blue);
    border-color: var(--primary-deep-blue);
}

.btn-secondary:hover {
    background-color: var(--primary-deep-blue);
    color: var(--true-white);
}

/* ========================================
   IDENTITY / MOVEMENT SECTION
   ======================================== */
.identity {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-warm-ivory);
}

.identity-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.identity-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 3/4;
}

.identity-content {
    padding: var(--spacing-lg) 0;
}

.identity-text {
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    font-weight: 400;
    line-height: 1.9;
    margin-bottom: var(--spacing-md);
    color: var(--primary-deep-blue);
}

.identity-text.highlight {
    font-weight: 500;
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    color: var(--accent-soft-green);
}

/* ========================================
   WHAT IT IS / WHAT IT IS NOT SECTION
   ======================================== */
.what-is-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--true-white);
}

.what-is-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.what-is-block h3 {
    font-size: clamp(0.875rem, 1.25vw, 1rem);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-md);
}

.what-is-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.what-is-list li {
    font-size: clamp(0.9375rem, 1.1vw, 1rem);
    font-weight: 400;
    color: var(--neutral-warm-grey);
    line-height: 1.6;
}

/* ========================================
   WORKSHOPS / FOUNDATIONAL SESSION
   ======================================== */
.foundational-session {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-warm-ivory);
    text-align: center;
}

.session-header {
    max-width: 800px;
    margin: 0 auto;
}

.workshop-subtitle {
    font-size: clamp(1.125rem, 1.75vw, 1.5rem);
    font-weight: 500;
    font-style: italic;
    color: var(--accent-soft-green);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.02em;
}

.session-header h2 {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.session-intro {
    font-size: clamp(1.0625rem, 1.4vw, 1.25rem);
    font-weight: 400;
    line-height: 1.7;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-lg);
}

.session-not {
    font-size: clamp(1rem, 1.25vw, 1.125rem);
    font-weight: 300;
    line-height: 1.8;
    color: var(--neutral-warm-grey);
    margin-bottom: var(--spacing-md);
}

.session-is {
    font-size: clamp(1.125rem, 1.5vw, 1.375rem);
    font-weight: 500;
    color: var(--accent-soft-green);
    letter-spacing: 0.02em;
}

/* ========================================
   SESSION STRUCTURE
   ======================================== */
.session-structure {
    padding: var(--spacing-xxl) 0;
    background-color: var(--true-white);
}

.structure-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.structure-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4/5;
}

.structure-content h3 {
    font-size: clamp(0.9375rem, 1.2vw, 1.0625rem);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-lg);
}

.structure-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.structure-list li {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(30, 42, 56, 0.1);
}

.structure-list li:last-child {
    border-bottom: none;
}

.step-title {
    font-size: clamp(0.9375rem, 1.15vw, 1.0625rem);
    font-weight: 600;
    color: var(--primary-deep-blue);
    line-height: 1.5;
}

.step-desc {
    font-size: clamp(0.875rem, 1.05vw, 0.9375rem);
    font-weight: 300;
    color: var(--neutral-warm-grey);
    line-height: 1.6;
}

/* ========================================
   PRACTICAL INFORMATION
   ======================================== */
.practical {
    padding: var(--spacing-xxl) 0;
    background-color: var(--bg-warm-ivory);
}

.practical-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.practical-content h2 {
    font-size: clamp(0.9375rem, 1.2vw, 1.0625rem);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--primary-deep-blue);
    margin-bottom: var(--spacing-lg);
}

.info-block {
    margin-bottom: var(--spacing-lg);
}

.info-block p {
    font-size: clamp(0.9375rem, 1.15vw, 1.0625rem);
    font-weight: 400;
    line-height: 1.9;
    color: var(--primary-deep-blue);
    margin-bottom: 0.5rem;
}

.practical-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.practical-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4/3;
}

/* ========================================
   WORKSHOP FOUNDER BLOCK
   ======================================== */
.rta-workshop-founder {
    padding: var(--spacing-xl) 0;
    background-color: var(--true-white);
    text-align: center;
}

/* ========================================
   HOME FOUNDER BLOCK
   ======================================== */
.rta-founder-block {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-warm-ivory);
    border-top: 1px solid rgba(30, 42, 56, 0.08);
    text-align: center;
}

.rta-founder-content {
    max-width: 600px;
    margin: 0 auto;
}

.rta-founder-founded {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.06em;
    color: var(--neutral-warm-grey);
    margin-bottom: var(--spacing-sm);
    opacity: 0.85;
}

.rta-founder-label {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--neutral-warm-grey);
    margin-bottom: 0.375rem;
    opacity: 0.9;
}

.rta-founder-name {
    font-size: clamp(1.125rem, 1.75vw, 1.5rem);
    font-weight: 600;
    color: var(--primary-deep-blue);
    margin-bottom: 0.375rem;
    letter-spacing: 0.02em;
}

.rta-founder-role,
.rta-founder-brand {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--neutral-warm-grey);
    margin-bottom: 0.25rem;
    opacity: 0.85;
}

/* ========================================
   GLOBAL MOVEMENTS
   ======================================== */
.global-movements {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-warm-ivory);
    text-align: center;
}

.global-text {
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent-soft-green);
}

/* ========================================
   INSTITUTIONAL BLOCK
   ======================================== */
.institutional-block {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-warm-ivory);
    border-top: 1px solid rgba(30, 42, 56, 0.08);
    text-align: center;
}

.institutional-content p {
    font-size: 0.8125rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    color: var(--neutral-warm-grey);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    padding: var(--spacing-xl) 0;
    background-color: var(--primary-deep-blue);
    color: var(--true-white);
    text-align: center;
}

.footer-title {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 700;
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: 1rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
}

.footer-contact {
    margin-bottom: var(--spacing-lg);
}

.footer-contact a {
    font-size: 0.9375rem;
    font-weight: 400;
    color: var(--true-white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding-bottom: 2px;
    transition: var(--transition-smooth);
}

.footer-contact a:hover {
    border-bottom-color: var(--true-white);
}

.footer-copyright {
    font-size: 0.8125rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    .nav-links {
        gap: 1.5rem;
    }
    
    .identity-grid,
    .what-is-grid,
    .structure-grid,
    .practical-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .what-is-grid {
        max-width: 600px;
    }
    
    .structure-content {
        order: 1;
    }
    
    .structure-image {
        order: 2;
    }
    
    .practical-content {
        order: 1;
    }
    
    .practical-image {
        order: 2;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
        --spacing-xxl: 5rem;
    }
    
    .language-switcher {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        padding: 0.375rem 0.75rem;
    }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        width: 100%;
        background: rgba(246, 242, 233, 0.98);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 1rem;
        border-bottom: 1px solid rgba(30, 42, 56, 0.08);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links a {
        font-size: 0.875rem;
        padding: 0.5rem 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }
    
    .practical-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .practical-buttons .btn {
        width: auto;
        min-width: 180px;
    }
    
    .what-is-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .nav-container {
        padding: 0 var(--spacing-sm);
    }
    
    .lang-btn {
        font-size: 0.6875rem;
        padding: 0.2rem 0.4rem;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent-soft-green);
    outline-offset: 2px;
}