/*
 * University of Cambridge Design System
 * talks.cam - Cambridge Design
 */

/* ============================================
   CSS VARIABLES - Cambridge Color Palette
   ============================================ */
:root {
    /* Primary Colors */
    --cambridge-dark: #0f2125;           /* rgb(15, 33, 37) - Primary text/headings */
    --cambridge-slate: #36404f;          /* rgb(54, 64, 79) - Navigation bar */
    --cambridge-footer: #010a14;         /* rgb(1, 10, 20) - Footer background */
    --cambridge-button: #081b21;         /* rgb(8, 27, 33) - CTA buttons */

    /* Background Colors */
    --bg-page: #f7f8f7;                  /* rgb(247, 248, 247) - Page background */
    --bg-card: #e8edec;                  /* rgb(232, 237, 236) - Card backgrounds */
    --bg-card-alt: #e9ecf1;              /* rgb(233, 236, 241) - Alternative card bg */
    --bg-white: #ffffff;

    /* Text Colors */
    --text-primary: #0f2125;             /* Dark teal - primary text */
    --text-secondary: rgba(15, 33, 37, 0.85); /* Nav links, secondary text */
    --text-muted: rgba(15, 33, 37, 0.65);
    --text-light: #ffffff;
    --text-footer: #f6fefe;              /* rgb(246, 254, 254) */

    /* Accent Colors */
    --accent-primary: #0f2125;           /* Primary accent (dark teal) */
    --accent-hover: #081b21;             /* Hover state */

    /* Border Colors */
    --border-light: rgba(15, 33, 37, 0.1);
    --border-medium: rgba(15, 33, 37, 0.2);

    /* Typography - Libre Baskerville for headings, Open Sans for body */
    --font-heading: 'Libre Baskerville', 'Georgia', 'Cambria', 'Times New Roman', serif;
    --font-body: 'Open Sans', ui-sans-serif, system-ui, -apple-system, sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */

    /* Layout */
    --max-width: 1280px;
    --content-padding: 1.5rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;

    /* Border Radius - subtle rounding */
    --radius-sm: 0;
    --radius-md: 0;
    --radius-lg: 0;
    --radius-pill: 56px;     /* For buttons */
}

/* ============================================
   BASE STYLES
   ============================================ */
body.cambridge-design {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-page);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.cambridge-design * {
    box-sizing: border-box;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
body.cambridge-design h1,
body.cambridge-design h2,
body.cambridge-design h3,
body.cambridge-design h4,
body.cambridge-design h5,
body.cambridge-design h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 400;
    line-height: 1.35;
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    border-bottom: none;
}

body.cambridge-design h1 {
    font-size: 2.75rem;  /* 44px */
    line-height: 1.35;
    margin-bottom: var(--spacing-lg);
}

body.cambridge-design h2 {
    font-size: 1.75rem;  /* 28px */
    margin-bottom: var(--spacing-md);
}

body.cambridge-design h3 {
    font-size: 1.375rem; /* 22px */
}

body.cambridge-design h4 {
    font-size: 1.125rem; /* 18px */
    font-weight: 600;
}

body.cambridge-design p {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

body.cambridge-design a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color var(--transition-fast);
}

body.cambridge-design a:hover {
    color: var(--accent-hover);
}

body.cambridge-design a:focus-visible {
    outline: 2px solid var(--cambridge-dark);
    outline-offset: 2px;
}

/* ============================================
   SKIP LINK - Accessibility
   ============================================ */
body.cambridge-design .skip-link {
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-white);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 10000;
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-weight: 600;
}

body.cambridge-design .skip-link:focus {
    top: var(--spacing-sm);
}

/* ============================================
   DESIGN TOGGLE BANNER
   ============================================ */
.design-toggle-banner {
    background: var(--cambridge-slate);
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    position: relative;
    z-index: 1000;
}

.design-toggle-banner .banner-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.design-toggle-banner .banner-text {
    font-size: 0.875rem;
}

.design-toggle-banner .banner-text strong {
    color: var(--text-light);
}

.design-toggle-btn {
    background-color: var(--cambridge-button);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-body);
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.design-toggle-btn:hover {
    background-color: var(--text-light);
    color: var(--cambridge-button);
    border-color: var(--text-light);
}

.design-toggle-btn:focus-visible {
    outline: 2px solid var(--text-light);
    outline-offset: 2px;
}

.design-toggle-btn svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   CAMBRIDGE HEADER
   ============================================ */
body.cambridge-design .cambridge-header {
    background-color: var(--bg-white);
}

/* Top white header section with logo */
body.cambridge-design .cambridge-header-top {
    background-color: var(--bg-white);
    padding: 20px 0;
}

body.cambridge-design .cambridge-header-top-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

body.cambridge-design .cambridge-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

body.cambridge-design .cambridge-logo img {
    height: 33px;
    width: auto;
}

body.cambridge-design .cambridge-logo-divider {
    width: 1px;
    height: 28px;
    background-color: rgba(15, 33, 37, 0.3);
    margin: 0 4px;
}

body.cambridge-design .site-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-primary);
    text-decoration: none;
}

body.cambridge-design .site-title:hover {
    text-decoration: none;
}

/* ============================================
   CAMBRIDGE NAVIGATION
   ============================================ */
body.cambridge-design .cambridge-nav {
    background-color: var(--cambridge-slate);
    padding: 0;
}

body.cambridge-design .cambridge-nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--content-padding);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

body.cambridge-design .cambridge-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
}

body.cambridge-design .cambridge-nav li {
    display: flex;
    align-items: center;
}

body.cambridge-design .cambridge-nav a,
body.cambridge-design .cambridge-nav button,
body.cambridge-design .cambridge-nav button[type="submit"] {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-footer);
    font-size: 0.9375rem;
    font-weight: 400;
    text-decoration: none;
    transition: background-color var(--transition-fast);
    background: none;
    border: none;
    border-radius: 0;
    cursor: pointer;
    font-family: inherit;
    line-height: inherit;
}

body.cambridge-design .cambridge-nav a:hover,
body.cambridge-design .cambridge-nav a.active,
body.cambridge-design .cambridge-nav button:hover,
body.cambridge-design .cambridge-nav button[type="submit"]:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-footer);
    text-decoration: underline;
}

body.cambridge-design .cambridge-nav a:focus-visible,
body.cambridge-design .cambridge-nav button:focus-visible,
body.cambridge-design .cambridge-nav button[type="submit"]:focus-visible {
    outline: 2px solid var(--text-light);
    outline-offset: -2px;
}

/* Nav logout form - inline display */
body.cambridge-design .cambridge-nav .nav-logout-form {
    display: inline;
    margin: 0;
}

/* Nav dropdown indicator */
body.cambridge-design .cambridge-nav .has-dropdown::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: var(--spacing-sm);
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
}

/* ============================================
   HERO/INTRO SECTION
   ============================================ */
body.cambridge-design .cambridge-hero {
    background-color: var(--bg-card);
    padding: var(--spacing-2xl) 0;
}

body.cambridge-design .cambridge-hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--content-padding);
}

body.cambridge-design .cambridge-hero h1 {
    max-width: 800px;
    margin-bottom: var(--spacing-lg);
}

body.cambridge-design .cambridge-hero p {
    max-width: 700px;
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   SEARCH HERO - Homepage Search Box
   ============================================ */
body.cambridge-design .search-hero {
    background-color: var(--bg-card);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-xl);
}

body.cambridge-design .search-hero h1 {
    margin-bottom: var(--spacing-sm);
}

body.cambridge-design .search-hero .search-examples {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

body.cambridge-design .search-hero .search-box {
    display: flex;
    gap: var(--spacing-md);
    max-width: 600px;
    margin-bottom: 0;
}

body.cambridge-design .search-hero .search-box input[type="text"] {
    flex: 1;
    padding: 12px var(--spacing-md);
    font-size: 1rem;
    border: 1px solid var(--border-medium);
    border-radius: 0;
    font-family: var(--font-body);
}

body.cambridge-design .search-hero .search-box input[type="text"]:focus {
    outline: 2px solid var(--cambridge-dark);
    outline-offset: 0;
    border-color: var(--cambridge-dark);
}

body.cambridge-design .search-hero .search-box button {
    flex-shrink: 0;
}

/* ============================================
   BREADCRUMBS
   ============================================ */
body.cambridge-design .cambridge-breadcrumbs {
    background-color: var(--bg-white);
    padding: var(--spacing-sm) 0;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-light);
}

body.cambridge-design .cambridge-breadcrumbs-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--content-padding);
}

body.cambridge-design .cambridge-breadcrumbs a {
    color: var(--text-secondary);
    text-decoration: none;
}

body.cambridge-design .cambridge-breadcrumbs a:hover {
    text-decoration: underline;
}

body.cambridge-design .cambridge-breadcrumbs span {
    color: var(--text-muted);
    margin: 0 var(--spacing-sm);
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
body.cambridge-design .cambridge-main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--content-padding);
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: var(--spacing-xl);
    min-height: calc(100vh - 400px);
}

body.cambridge-design .cambridge-main.no-sidebar {
    grid-template-columns: 1fr;
}

body.cambridge-design .cambridge-content {
    min-width: 0; /* Prevent grid blowout */
}

/* ============================================
   CONTENT CARDS
   ============================================ */
body.cambridge-design .content-card {
    background-color: var(--bg-card);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

body.cambridge-design .content-card.white {
    background-color: var(--bg-white);
}

body.cambridge-design .content-card h2 {
    margin-bottom: var(--spacing-sm);
}

body.cambridge-design .content-card p {
    color: var(--text-secondary);
}

/* ============================================
   SIDEBAR
   ============================================ */
body.cambridge-design .cambridge-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

body.cambridge-design .sidebar-widget {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
}

body.cambridge-design .sidebar-widget h2 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-medium);
}

body.cambridge-design .sidebar-widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

body.cambridge-design .sidebar-widget li {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

body.cambridge-design .sidebar-widget li:last-child {
    border-bottom: none;
}

body.cambridge-design .sidebar-widget a {
    color: var(--text-primary);
    text-decoration: none;
    display: block;
    transition: color var(--transition-fast);
}

body.cambridge-design .sidebar-widget a:hover {
    text-decoration: underline;
}

/* Sidebar logout button - styled like a link */
body.cambridge-design .sidebar-widget .sidebar-logout-form {
    display: inline;
    margin: 0;
}

body.cambridge-design .sidebar-widget .sidebar-logout-btn {
    background: none;
    border: none;
    padding: 0;
    color: var(--text-primary);
    cursor: pointer;
    font: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

body.cambridge-design .sidebar-widget .sidebar-logout-btn:hover {
    text-decoration: underline;
}

/* Search Box in Sidebar */
body.cambridge-design .sidebar-search {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

body.cambridge-design .sidebar-search input[type="text"] {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-medium);
    font-size: 0.9375rem;
    font-family: var(--font-body);
    transition: border-color var(--transition-fast);
}

body.cambridge-design .sidebar-search input[type="text"]:focus {
    outline: none;
    border-color: var(--cambridge-dark);
}

body.cambridge-design .sidebar-search button {
    background-color: var(--cambridge-button);
    color: var(--text-light);
    border: 1px solid var(--cambridge-button);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: var(--font-body);
    transition: all var(--transition-fast);
}

body.cambridge-design .sidebar-search button:hover {
    background-color: var(--bg-white);
    color: var(--cambridge-button);
}

/* ============================================
   BUTTONS (pill shaped)
   ============================================ */
body.cambridge-design .btn,
body.cambridge-design button[type="submit"],
body.cambridge-design input[type="submit"] {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 11px var(--spacing-md);
    background-color: var(--cambridge-button);
    color: var(--text-light);
    border: 1px solid var(--cambridge-button);
    border-radius: var(--radius-pill);
    font-size: 0.9375rem;
    font-weight: 500;
    font-family: var(--font-body);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

body.cambridge-design .btn:hover,
body.cambridge-design button[type="submit"]:hover,
body.cambridge-design input[type="submit"]:hover {
    background-color: var(--bg-white);
    color: var(--cambridge-button);
    text-decoration: none;
}

body.cambridge-design .btn:focus-visible,
body.cambridge-design button[type="submit"]:focus-visible,
body.cambridge-design input[type="submit"]:focus-visible {
    outline: 2px solid var(--cambridge-dark);
    outline-offset: 2px;
}

body.cambridge-design .btn-secondary {
    background-color: transparent;
    color: var(--cambridge-button);
    border: 1px solid var(--cambridge-button);
}

body.cambridge-design .btn-secondary:hover {
    background-color: var(--cambridge-button);
    color: var(--text-light);
}

/* ============================================
   TALK CARDS
   ============================================ */
body.cambridge-design .talk-card {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    transition: background-color var(--transition-fast);
}

body.cambridge-design .talk-card:hover {
    background-color: var(--bg-card-alt);
}

body.cambridge-design .talk-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: var(--spacing-sm);
}

body.cambridge-design .talk-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

body.cambridge-design .talk-card h3 a:hover {
    text-decoration: underline;
}

body.cambridge-design .talk-card .talk-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

body.cambridge-design .talk-card .talk-meta span {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

body.cambridge-design .talk-card .talk-series {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

/* Talk with Logo */
body.cambridge-design .talk-card.with-logo {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: var(--spacing-md);
}

body.cambridge-design .talk-card .talk-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

/* ============================================
   TALK DETAIL VIEW
   ============================================ */
body.cambridge-design .talk-detail {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

body.cambridge-design .talk-detail > .talk-logo {
    width: 200px;
    max-width: 200px;
    height: auto;
    max-height: 250px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    grid-row: 1 / 4;
}

body.cambridge-design .talk-detail > h1.summary {
    grid-column: 2;
    margin-bottom: var(--spacing-sm);
}

body.cambridge-design .talk-detail > .talk-actions {
    grid-column: 2;
}

body.cambridge-design .talk-detail .talk-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

body.cambridge-design .talk-detail .talk-actions a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
}

body.cambridge-design .talk-detail .talk-actions a:hover {
    text-decoration: underline;
    color: var(--text-primary);
}

body.cambridge-design .talk-detail .details-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-lg) 0;
    grid-column: 1 / -1;
}

body.cambridge-design .talk-detail .details-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

body.cambridge-design .talk-detail .details-list li:last-child {
    border-bottom: none;
}

body.cambridge-design .talk-detail .details-list li > span:first-child {
    flex-shrink: 0;
    width: 1.5rem;
}

body.cambridge-design .talk-detail .alert {
    grid-column: 1 / -1;
}

body.cambridge-design .talk-detail .abstract {
    grid-column: 1 / -1;
}

body.cambridge-design .talk-detail .abstract h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

/* Talk detail without image - single column layout */
body.cambridge-design .talk-detail:not(:has(> .talk-logo)) {
    grid-template-columns: 1fr;
}

body.cambridge-design .talk-detail:not(:has(> .talk-logo)) > h1.summary,
body.cambridge-design .talk-detail:not(:has(> .talk-logo)) > .talk-actions {
    grid-column: 1;
}

/* Responsive talk detail */
@media (max-width: 768px) {
    body.cambridge-design .talk-detail {
        grid-template-columns: 1fr;
    }

    body.cambridge-design .talk-detail > .talk-logo {
        grid-row: auto;
        max-width: 150px;
        max-height: 180px;
        margin: 0 auto var(--spacing-md);
    }

    body.cambridge-design .talk-detail > h1.summary,
    body.cambridge-design .talk-detail > .talk-actions,
    body.cambridge-design .talk-detail .details-list,
    body.cambridge-design .talk-detail .alert,
    body.cambridge-design .talk-detail .abstract {
        grid-column: 1;
    }
}

/* ============================================
   LIST/SERIES VIEW
   ============================================ */
body.cambridge-design .list-header {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    align-items: flex-start;
}

body.cambridge-design .list-header .list-logo {
    max-width: 150px;
    max-height: 150px;
    object-fit: contain;
}

body.cambridge-design .list-header .list-info {
    flex: 1;
}

body.cambridge-design .list-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

body.cambridge-design .list-actions a {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--cambridge-button);
    color: var(--text-light);
    border-radius: var(--radius-pill);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--transition-fast);
}

body.cambridge-design .list-actions a:hover {
    background-color: var(--bg-white);
    color: var(--cambridge-button);
    outline: 1px solid var(--cambridge-button);
}

/* ============================================
   LINK LISTS
   ============================================ */
body.cambridge-design .link-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

body.cambridge-design .link-list li {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-light);
}

body.cambridge-design .link-list li:last-child {
    border-bottom: none;
}

body.cambridge-design .link-list a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 400;
}

body.cambridge-design .link-list a:hover {
    text-decoration: underline;
}

body.cambridge-design .link-list .description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* ============================================
   ALPHABET NAVIGATION
   ============================================ */
body.cambridge-design .alphabet-nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background-color: var(--bg-card);
}

body.cambridge-design .alphabet-nav a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

body.cambridge-design .alphabet-nav a:hover,
body.cambridge-design .alphabet-nav a.active {
    background-color: var(--cambridge-button);
    color: var(--text-light);
}

/* ============================================
   FORMS
   ============================================ */
body.cambridge-design fieldset {
    border: 1px solid var(--border-medium);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

body.cambridge-design legend {
    font-family: var(--font-heading);
    font-weight: 400;
    font-size: 1.125rem;
    color: var(--text-primary);
    padding: 0 var(--spacing-sm);
}

body.cambridge-design label {
    font-weight: 500;
    color: var(--text-primary);
    display: block;
    margin-bottom: var(--spacing-xs);
}

body.cambridge-design input[type="text"],
body.cambridge-design input[type="email"],
body.cambridge-design input[type="password"],
body.cambridge-design input[type="url"],
body.cambridge-design input[type="search"],
body.cambridge-design textarea,
body.cambridge-design select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-medium);
    font-size: 1rem;
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--bg-white);
    transition: border-color var(--transition-fast);
}

body.cambridge-design input:focus,
body.cambridge-design textarea:focus,
body.cambridge-design select:focus {
    outline: none;
    border-color: var(--cambridge-dark);
}

body.cambridge-design .form-group {
    margin-bottom: var(--spacing-md);
}

body.cambridge-design .form-hint {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* ============================================
   FOOTER
   ============================================ */
body.cambridge-design .cambridge-footer {
    background-color: var(--cambridge-footer);
    color: var(--text-footer);
    margin-top: var(--spacing-2xl);
}

body.cambridge-design .cambridge-footer-main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--content-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

body.cambridge-design .cambridge-footer h3 {
    font-family: var(--font-heading);
    color: var(--text-footer);
    font-size: 1.125rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
}

body.cambridge-design .cambridge-footer-contact {
    font-size: 0.9375rem;
    line-height: 1.7;
}

body.cambridge-design .cambridge-footer-contact a {
    color: var(--text-footer);
    text-decoration: none;
}

body.cambridge-design .cambridge-footer-contact a:hover {
    text-decoration: underline;
}

body.cambridge-design .cambridge-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

body.cambridge-design .cambridge-footer li {
    margin-bottom: var(--spacing-sm);
}

body.cambridge-design .cambridge-footer a {
    color: var(--text-footer);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: text-decoration var(--transition-fast);
}

body.cambridge-design .cambridge-footer a:hover {
    text-decoration: underline;
}

/* Footer address */
body.cambridge-design .cambridge-footer .footer-address {
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-footer);
    margin: 0;
}

/* Footer bottom bar with logo and copyright on left */
body.cambridge-design .cambridge-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding: var(--spacing-lg) var(--content-padding);
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

body.cambridge-design .cambridge-footer-bottom .footer-left {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

body.cambridge-design .cambridge-footer-bottom .footer-logo img {
    height: 40px;
    width: auto;
}

body.cambridge-design .cambridge-footer-bottom nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    align-items: center;
}

body.cambridge-design .cambridge-footer-bottom nav a {
    font-size: 0.875rem;
    color: var(--text-footer);
}

body.cambridge-design .cambridge-footer-bottom .copyright {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
body.cambridge-design .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

body.cambridge-design .text-center { text-align: center; }
body.cambridge-design .text-muted { color: var(--text-muted); }

body.cambridge-design .mb-0 { margin-bottom: 0; }
body.cambridge-design .mb-1 { margin-bottom: var(--spacing-sm); }
body.cambridge-design .mb-2 { margin-bottom: var(--spacing-md); }
body.cambridge-design .mb-3 { margin-bottom: var(--spacing-lg); }
body.cambridge-design .mb-4 { margin-bottom: var(--spacing-xl); }

body.cambridge-design .mt-0 { margin-top: 0; }
body.cambridge-design .mt-1 { margin-top: var(--spacing-sm); }
body.cambridge-design .mt-2 { margin-top: var(--spacing-md); }
body.cambridge-design .mt-3 { margin-top: var(--spacing-lg); }
body.cambridge-design .mt-4 { margin-top: var(--spacing-xl); }

/* ============================================
   ALERT/MESSAGE BOXES
   ============================================ */
body.cambridge-design .alert {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

body.cambridge-design .alert-info {
    background-color: #e8f4f8;
    border-color: #0891b2;
    color: #155e75;
}

body.cambridge-design .alert-success {
    background-color: #ecfdf5;
    border-color: #059669;
    color: #065f46;
}

body.cambridge-design .alert-warning {
    background-color: #fffbeb;
    border-color: #d97706;
    color: #92400e;
}

body.cambridge-design .alert-danger {
    background-color: #fef2f2;
    border-color: #dc2626;
    color: #991b1b;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    body.cambridge-design .cambridge-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    body.cambridge-design .cambridge-sidebar {
        order: -1;
    }

    body.cambridge-design .cambridge-footer-main {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --content-padding: 1rem;
    }

    body.cambridge-design h1 {
        font-size: 2rem;
    }

    body.cambridge-design h2 {
        font-size: 1.5rem;
    }

    body.cambridge-design .cambridge-header-top-inner {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    body.cambridge-design .cambridge-nav-inner {
        flex-direction: column;
    }

    body.cambridge-design .cambridge-nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }

    body.cambridge-design .cambridge-nav a,
    body.cambridge-design .cambridge-nav button,
    body.cambridge-design .cambridge-nav button[type="submit"] {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    body.cambridge-design .cambridge-footer-main {
        grid-template-columns: 1fr;
    }

    body.cambridge-design .cambridge-footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    body.cambridge-design .talk-card.with-logo {
        grid-template-columns: 1fr;
    }

    body.cambridge-design .list-header {
        flex-direction: column;
        text-align: center;
    }

    .design-toggle-banner .banner-content {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    body.cambridge-design .alphabet-nav a {
        min-width: 32px;
        height: 32px;
        font-size: 0.875rem;
    }

    body.cambridge-design .content-card {
        padding: var(--spacing-md);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .design-toggle-banner,
    body.cambridge-design .cambridge-nav,
    body.cambridge-design .cambridge-sidebar {
        display: none !important;
    }

    body.cambridge-design .cambridge-main {
        grid-template-columns: 1fr;
    }

    body.cambridge-design {
        background-color: white;
    }
}

/* ============================================
   SOCIAL LOGIN BUTTONS
   ============================================ */
body.cambridge-design .social-login-btn,
body.cambridge-design .sidebar-widget .social-login-btn {
    display: inline-flex !important;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-pill);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9375rem;
    transition: all var(--transition-fast);
    border: 1px solid;
    line-height: 1;
}

body.cambridge-design .social-login-btn svg {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    display: block;
}

body.cambridge-design .social-login-btn.google {
    background-color: var(--bg-white);
    color: #1f1f1f;
    border-color: var(--border-medium);
}

body.cambridge-design .social-login-btn.google:hover {
    background-color: #f8f9fa;
    border-color: #1f1f1f;
}

body.cambridge-design .social-login-btn.microsoft {
    background-color: var(--cambridge-button);
    color: var(--text-light);
    border-color: var(--cambridge-button);
}

body.cambridge-design .social-login-btn.microsoft:hover {
    background-color: var(--bg-white);
    color: var(--cambridge-button);
}

/* ============================================
   ICON STYLING
   ============================================ */
body.cambridge-design .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
}

body.cambridge-design .icon svg {
    width: 100%;
    height: 100%;
}

body.cambridge-design img.logo {
    max-width: 32px;
    max-height: 32px;
}

body.cambridge-design img.logo-medium {
    max-width: 128px;
    max-height: 128px;
}

body.cambridge-design img.list-logo {
    max-width: 32px;
    max-height: 32px;
}

body.cambridge-design img.talk-logo {
    max-width: 128px;
    max-height: 128px;
}