/* ============================================
   Hanse Digital Access OÜ - Website Styles
   Professional Advisory Firm Aesthetic
   ============================================ */

:root {
    /* Colour Palette - Refined Navy & Brass */
    --colour-primary: #1a2332;
    --colour-secondary: #2d3748;
    --colour-accent: #b8860b;
    --colour-accent-light: #d4a855;
    --colour-text: #2d3748;
    --colour-text-light: #64748b;
    --colour-background: #fafafa;
    --colour-surface: #ffffff;
    --colour-border: #e2e8f0;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 6rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

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

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--colour-text);
    background-color: var(--colour-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--colour-accent);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.3;
    color: var(--colour-primary);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 400;
    letter-spacing: -0.02em;
}

h1 em {
    font-style: italic;
    color: var(--colour-accent);
}

h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

h4 {
    font-size: 1.125rem;
    font-family: var(--font-body);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

p {
    margin-bottom: var(--space-sm);
}

p:last-child {
    margin-bottom: 0;
}

strong {
    font-weight: 600;
}

/* ============================================
   Layout
   ============================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

section {
    padding: var(--space-xl) 0;
}

/* ============================================
   Header & Navigation
   ============================================ */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    border-bottom-color: var(--colour-border);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-image {
    height: 50px;
    width: auto;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--colour-primary);
    letter-spacing: -0.01em;
}

.logo-suffix {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--colour-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--space-md);
}

.main-nav a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--colour-text);
    padding: var(--space-xs) 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--colour-accent);
    transition: width var(--transition-base);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--colour-primary);
    transition: all var(--transition-fast);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--colour-primary) 0%, var(--colour-secondary) 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(184, 134, 11, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(184, 134, 11, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    text-align: center;
}

.hero h1 {
    color: #ffffff;
    margin-bottom: var(--space-md);
}

.hero h1 em {
    color: var(--colour-accent-light);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-lg);
    font-weight: 300;
}

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

.hero-accent {
    position: absolute;
    bottom: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    border: 1px solid rgba(184, 134, 11, 0.2);
    border-radius: 50%;
    pointer-events: none;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 2px solid transparent;
    border-radius: 0;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--colour-accent);
    color: #ffffff;
    border-color: var(--colour-accent);
}

.btn-primary:hover {
    background: var(--colour-accent-light);
    border-color: var(--colour-accent-light);
    color: #ffffff;
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
    color: #ffffff;
}

/* ============================================
   Intro Section
   ============================================ */

.intro {
    background: var(--colour-surface);
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-content h2 {
    color: var(--colour-primary);
}

.intro-content p {
    font-size: 1.125rem;
    color: var(--colour-text);
}

/* ============================================
   Services Overview
   ============================================ */

.services-overview {
    background: var(--colour-background);
}

.services-overview h2 {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-md);
}

.service-card {
    background: var(--colour-surface);
    padding: var(--space-lg);
    border: 1px solid var(--colour-border);
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: var(--colour-accent);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-md);
    color: var(--colour-accent);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
}

.service-card p {
    color: var(--colour-text-light);
    font-size: 0.9375rem;
}

/* ============================================
   Ethos / Quote Section
   ============================================ */

.ethos {
    background: var(--colour-primary);
    padding: var(--space-xl) 0;
}

.ethos blockquote {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.ethos blockquote p {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-style: italic;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

/* ============================================
   Publications Section
   ============================================ */

.publications {
    background: var(--colour-background);
}

.publications h2 {
    text-align: center;
    margin-bottom: var(--space-sm);
}

.publications-intro {
    text-align: center;
    color: var(--colour-text-light);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto var(--space-lg);
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-md);
}

.publications-grid-three {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .publications-grid-three {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .publications-grid-three {
        grid-template-columns: 1fr;
    }
}

.publication-card {
    display: block;
    background: var(--colour-surface);
    padding: var(--space-lg);
    border: 1px solid var(--colour-border);
    text-decoration: none;
    transition: all var(--transition-base);
}

.publication-card:hover {
    border-color: var(--colour-accent);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(-4px);
}

.publication-icon {
    width: 40px;
    height: 40px;
    margin-bottom: var(--space-md);
    color: var(--colour-accent);
}

.publication-icon svg {
    width: 100%;
    height: 100%;
}

.publication-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--colour-primary);
    margin-bottom: var(--space-sm);
}

.publication-card p {
    color: var(--colour-text-light);
    font-size: 0.9375rem;
    margin-bottom: var(--space-md);
}

.publication-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--colour-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.publication-card:hover .publication-link {
    color: var(--colour-accent-light);
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    background: var(--colour-surface);
    text-align: center;
}

.cta-section h2 {
    margin-bottom: var(--space-sm);
}

.cta-section p {
    font-size: 1.125rem;
    color: var(--colour-text-light);
    max-width: 600px;
    margin: 0 auto var(--space-md);
}

.cta-section .btn-primary {
    background: var(--colour-primary);
    border-color: var(--colour-primary);
}

.cta-section .btn-primary:hover {
    background: var(--colour-secondary);
    border-color: var(--colour-secondary);
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    background: var(--colour-primary);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--space-xl) 0 var(--space-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--space-sm);
    filter: brightness(0) invert(1);
}

.footer-brand p {
    font-size: 0.875rem;
    line-height: 1.8;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--colour-accent-light);
    font-size: 0.75rem;
    margin-bottom: var(--space-sm);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a,
.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: #ffffff;
}

.footer-contact p {
    font-size: 0.875rem;
    margin-bottom: var(--space-xs);
}

.footer-bottom {
    padding-top: var(--space-md);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   Page Headers (for inner pages)
   ============================================ */

.page-header {
    background: linear-gradient(135deg, var(--colour-primary) 0%, var(--colour-secondary) 100%);
    padding: calc(80px + var(--space-xl)) 0 var(--space-xl);
    text-align: center;
}

.page-header h1 {
    color: #ffffff;
    margin-bottom: var(--space-sm);
}

.page-header .lead {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 300;
    max-width: 600px;
    margin: 0 auto;
}

.page-header-defence {
    background: linear-gradient(135deg, rgba(26, 35, 50, 0.9) 0%, rgba(45, 55, 72, 0.9) 100%),
                url('images/defence-hero.png');
    background-size: cover;
    background-position: center;
    min-height: 50vh;
    display: flex;
    align-items: center;
}

/* ============================================
   Content Sections
   ============================================ */

.content-section {
    background: var(--colour-surface);
}

.content-section.alt {
    background: var(--colour-background);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
}

.content-grid.reverse {
    direction: rtl;
}

.content-grid.reverse > * {
    direction: ltr;
}

.content-image {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
}

.content-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 300px;
}

.content-text {
    padding: var(--space-md) 0;
}

.content-text h2 {
    margin-bottom: var(--space-md);
}

.image-section .content-grid {
    gap: var(--space-xl);
}

/* ============================================
   Team Cards
   ============================================ */

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-md);
}

.team-card {
    background: var(--colour-surface);
    border: 1px solid var(--colour-border);
    text-align: center;
    padding: var(--space-lg);
}

.team-card-photo {
    width: 160px;
    height: 160px;
    margin: 0 auto var(--space-md);
    background: var(--colour-background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--colour-text-light);
    font-family: var(--font-display);
    font-size: 3rem;
}

.team-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xs);
}

.team-card .role {
    font-size: 0.875rem;
    color: var(--colour-accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.team-card p {
    font-size: 0.9375rem;
    color: var(--colour-text-light);
}

.team-section-title {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.team-section-title h2 {
    margin-bottom: var(--space-xs);
}

.team-section-title p {
    color: var(--colour-text-light);
}

/* ============================================
   Contact Form
   ============================================ */

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

.contact-info h3 {
    margin-bottom: var(--space-md);
}

.contact-info p {
    margin-bottom: var(--space-md);
}

.contact-detail {
    margin-bottom: var(--space-md);
}

.contact-detail h4 {
    font-size: 0.75rem;
    color: var(--colour-text-light);
    margin-bottom: var(--space-xs);
}

.contact-detail p,
.contact-detail a {
    font-size: 1rem;
    color: var(--colour-text);
}

.contact-form {
    background: var(--colour-background);
    padding: var(--space-lg);
}

.contact-cta {
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-cta-inner {
    background: var(--colour-primary);
    padding: var(--space-xl);
    text-align: center;
    max-width: 400px;
}

.contact-cta-inner h3 {
    color: #ffffff;
    margin-bottom: var(--space-md);
}

.contact-cta-inner p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-md);
}

.contact-cta-inner .btn-primary {
    background: var(--colour-accent);
    border-color: var(--colour-accent);
    margin-bottom: var(--space-md);
}

.contact-cta-inner .btn-primary:hover {
    background: var(--colour-accent-light);
    border-color: var(--colour-accent-light);
}

.contact-note {
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid var(--colour-border);
    background: var(--colour-surface);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--colour-accent);
}

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

/* ============================================
   Service Detail Pages
   ============================================ */

.service-detail {
    max-width: 800px;
    margin: 0 auto;
}

.service-detail h2 {
    margin-top: var(--space-lg);
}

.service-detail ul {
    list-style: none;
    margin: var(--space-md) 0;
}

.service-detail li {
    padding-left: var(--space-md);
    position: relative;
    margin-bottom: var(--space-sm);
}

.service-detail li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.75em;
    width: 8px;
    height: 2px;
    background: var(--colour-accent);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 968px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: span 2;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .content-grid.reverse {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    :root {
        --space-xl: 4rem;
    }
    
    .site-header .container {
        height: 70px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--colour-surface);
        padding: var(--space-md);
        border-bottom: 1px solid var(--colour-border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav li {
        border-bottom: 1px solid var(--colour-border);
    }
    
    .main-nav li:last-child {
        border-bottom: none;
    }
    
    .main-nav a {
        display: block;
        padding: var(--space-sm) 0;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .hero {
        min-height: 70vh;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 2.5rem;
        --space-xl: 3rem;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .service-card {
        padding: var(--space-md);
    }
}