/* SYDBMA.org - Elegant & Readable Design */
/* No icon fonts - pure typography */

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

:root {
    --color-primary: #1a2a3a;
    --color-primary-light: #2c3e50;
    --color-accent: #8b5e3c;
    --color-accent-light: #a0704c;
    --color-text: #2c3e2f;
    --color-text-light: #5a6b5e;
    --color-bg: #ffffff;
    --color-bg-off-white: #fafaf8;
    --color-border: #e2e2dc;
    --color-border-dark: #c8c8c0;

    --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-sans: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    --max-width: 1280px;
    --reading-width: 880px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    font-size: 1.125rem;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

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

/* Typography */
h1, h2, h3, h4, .logo, .footer-logo {
    font-family: var(--font-serif);
    font-weight: 600;
    letter-spacing: -0.01em;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

h2 {
    font-size: 2.25rem;
    margin-bottom: var(--spacing-sm);
    border-left: 3px solid var(--color-accent);
    padding-left: var(--spacing-sm);
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary-light);
}

.subhead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 720px;
    margin-bottom: var(--spacing-md);
}

/* Header Navigation */
.site-header {
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.logo a {
    text-decoration: none;
}

.logo-sydbma {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.logo-full {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--color-text-light);
    letter-spacing: 0.3px;
}

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

.nav-list a {
    text-decoration: none;
    font-weight: 500;
    color: var(--color-text);
    transition: color 0.2s ease;
    font-size: 0.9375rem;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--color-accent);
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--color-border);
    padding: 0.5rem 1rem;
    font-family: var(--font-sans);
    cursor: pointer;
}

/* Article / Pillar Page */
.pillar-article {
    background: var(--color-bg-off-white);
    padding: var(--spacing-lg) 0 var(--spacing-xl);
}

.article-header {
    max-width: var(--reading-width);
    margin: 0 auto var(--spacing-lg);
    text-align: center;
}

.article-breadcrumb {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.article-byline {
    font-size: 0.875rem;
    color: var(--color-text-light);
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.executive-summary,
.pillar,
.conclusion {
    max-width: var(--reading-width);
    margin: 0 auto var(--spacing-lg);
}

.executive-summary {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.pillar p,
.conclusion p {
    margin-bottom: var(--spacing-sm);
}

.research-insight {
    background: var(--color-bg-off-white);
    border-left: 3px solid var(--color-accent);
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-md) 0;
    font-style: normal;
}

.insight-title {
    font-weight: 700;
    font-family: var(--font-serif);
    margin-bottom: 0.25rem;
}

.cta-official {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.cta-title {
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.signature {
    margin-top: var(--spacing-sm);
    font-style: italic;
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: var(--spacing-sm);
}

.article-metadata {
    max-width: var(--reading-width);
    margin: 0 auto;
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

/* About Page */
.about-page {
    padding: var(--spacing-lg) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

.about-content section {
    margin-bottom: var(--spacing-lg);
}

.method-list {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.method-list li {
    margin-bottom: 0.25rem;
}

.sidebar-card {
    background: var(--color-bg-off-white);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.sidebar-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.sidebar-card ul {
    list-style: none;
}

.sidebar-card li {
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
}

/* Research Page */
.research-page {
    padding: var(--spacing-lg) 0;
    background: var(--color-bg-off-white);
}

.research-filters {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.filter-link {
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-light);
    padding: 0.25rem 0;
    transition: color 0.2s;
}

.filter-link:hover,
.filter-link.active {
    color: var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
}

.research-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.research-item {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    transition: box-shadow 0.2s;
}

.research-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.research-item-header {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 0.8125rem;
}

.research-category {
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent);
    font-weight: 600;
}

.research-date {
    color: var(--color-text-light);
}

.research-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.research-abstract {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.research-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.8125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.research-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.btn-download, .btn-read, .btn-primary, .btn-outline {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-sans);
    transition: all 0.2s;
}

.btn-download {
    background: var(--color-primary);
    color: white;
}

.btn-download:hover {
    background: var(--color-accent);
}

.btn-read {
    background: transparent;
    border: 1px solid var(--color-border-dark);
    color: var(--color-text);
}

.btn-read:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    padding: 0.75rem 2rem;
}

.btn-primary:hover {
    background: var(--color-accent);
}

.btn-outline {
    border: 1px solid var(--color-border-dark);
    color: var(--color-text);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: white;
    max-width: 700px;
    width: 90%;
    max-height: 85%;
    overflow-y: auto;
    padding: var(--spacing-lg);
    position: relative;
}

.modal-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    font-family: var(--font-serif);
}

.modal-meta {
    display: flex;
    gap: var(--spacing-md);
    margin: var(--spacing-sm) 0;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.modal-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

/* Contact Page */
.contact-page {
    padding: var(--spacing-lg) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

.contact-form {
    background: var(--color-bg-off-white);
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.25rem;
    font-weight: 500;
    font-size: 0.875rem;
}

.required {
    color: var(--color-accent);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--color-border);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    background: white;
}

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

.form-group small {
    font-size: 0.75rem;
    color: var(--color-text-light);
    display: block;
    margin-top: 0.25rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.info-card {
    background: var(--color-bg-off-white);
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
}

.info-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
}

.info-card.accreditation {
    background: transparent;
    border-left: 3px solid var(--color-accent);
}

.form-success, .form-error {
    max-width: 720px;
    margin: 0 auto var(--spacing-lg);
    padding: var(--spacing-md);
}

.form-success {
    background: #e8f0e8;
    border-left: 3px solid #2c6e2c;
}

.form-error {
    background: #fdf0f0;
    border-left: 3px solid #b33;
}

/* Footer */
.site-footer {
    background: var(--color-primary);
    color: #d4dcd4;
    padding: var(--spacing-lg) 0 var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: 0.8125rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.4;
}

.footer-address {
    font-size: 0.8125rem;
    font-style: normal;
}

.footer-col h4 {
    font-family: var(--font-serif);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    color: white;
}

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

.footer-col li {
    margin-bottom: 0.25rem;
}

.footer-col a {
    color: #d4dcd4;
    text-decoration: none;
    font-size: 0.8125rem;
}

.footer-col a:hover {
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: var(--spacing-sm);
    font-size: 0.75rem;
    text-align: center;
}

.eeat-badge {
    margin-top: 0.25rem;
    letter-spacing: 0.5px;
}

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.25rem; }
    h2 { font-size: 1.75rem; }

    .nav-list {
        display: none;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .nav-list.show {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-border);
    }

    .about-grid,
    .contact-grid,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

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

    .article-byline {
        flex-direction: column;
        gap: 0.25rem;
    }

    .research-actions {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .modal-content {
        padding: var(--spacing-md);
    }
}