/* ================================
   YSN - Young Scholar Network
   Simplified Professional Stylesheet
   ================================ */

/* === CSS Variables === */
:root {
    /* Colors - Enhanced Palette */
    --color-primary: #F5C93F;
    --color-primary-dark: #d9b336;
    --color-primary-light: #f8e5a0;
    --color-primary-hover: #e6ba2f;
    --color-secondary: #1a1a1a;
    --color-accent: #3498db;
    --color-accent-dark: #2980b9;
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-text-dark: #1a1a1a;
    --color-white: #ffffff;
    --color-bg-light: #f8f9fa;
    --color-background-alt: #ecf0f1;
    --color-border: #e0e0e0;
    --color-border-light: #ecf0f1;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Montserrat', sans-serif;

    /* Spacing - Enhanced Scale */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    /* Transitions */
    --transition: 0.3s ease;
    --transition-fast: 0.15s ease;
    --transition-slow: 0.5s ease;

    /* Shadows - Enhanced Depth */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    --shadow-hover: 0 12px 32px rgba(0,0,0,0.18);

    /* Border Radius */
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --radius-full: 50%;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Focus visible for accessibility */
*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

/* Skip to main content link for accessibility */
.skip-to-main {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1em;
    background-color: var(--color-primary);
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 600;
}

.skip-to-main:focus {
    left: 50%;
    transform: translateX(-50%);
    top: 1rem;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2.75rem;
    letter-spacing: -0.02em;
}
h2 {
    font-size: 2.25rem;
    letter-spacing: -0.01em;
}
h3 {
    font-size: 1.5rem;
}

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

/* Selection color */
::selection {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

::-moz-selection {
    background-color: var(--color-primary);
    color: var(--color-secondary);
}

a {
    color: var(--color-primary-dark);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

a:hover {
    color: var(--color-primary);
}

a:active {
    transform: translateY(1px);
}

/* === Layout === */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* === Header & Navigation === */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    transition: box-shadow var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav__logo-img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.nav__logo-text {
    display: flex;
    flex-direction: column;
}

.nav__logo-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-secondary);
}

.nav__logo-subtitle {
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav__link {
    color: var(--color-text);
    font-weight: 500;
    padding: var(--spacing-xs) 0;
    border-bottom: 3px solid transparent;
    transition: all var(--transition);
    position: relative;
}

.nav__link:hover {
    color: var(--color-primary-dark);
    border-bottom-color: var(--color-primary);
}

.nav__link.active {
    color: var(--color-primary-dark);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

.nav__link--cta {
    background-color: var(--color-primary);
    color: var(--color-secondary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    border-bottom: none;
}

.nav__link--cta:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-secondary);
    transition: var(--transition);
}

/* Mobile Menu Overlay */
.nav__overlay {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
    z-index: 998;
}

.nav__overlay.active {
    opacity: 1;
    visibility: visible;
}

/* === Hero Section === */
.hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff9e6 50%, #ffffff 100%);
    padding: 5rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(245, 201, 63, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero__title {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.15;
    position: relative;
    z-index: 1;
}

.hero__title--highlight {
    color: var(--color-primary-dark);
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__description {
    font-size: 1.25rem;
    color: var(--color-text);
    max-width: 750px;
    margin: 0 auto var(--spacing-md);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

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

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
    font-size: 1rem;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-secondary);
    box-shadow: 0 4px 12px rgba(245, 201, 63, 0.3);
}

.btn--primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(245, 201, 63, 0.4);
}

.btn--secondary {
    background-color: transparent;
    color: var(--color-secondary);
    border: 2px solid var(--color-secondary);
    box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
    background-color: var(--color-secondary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--large {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
}

.btn--small {
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
}

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

/* === Section Header === */
.section__header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section__header.center {
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--spacing-xl);
}

.section__title {
    margin-bottom: var(--spacing-sm);
    font-size: 2.25rem;
    line-height: 1.2;
}

.section__subtitle {
    font-size: 1.2rem;
    color: var(--color-text);
    line-height: 1.6;
}

/* === Cards === */
.card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.card {
    background-color: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
    border-color: var(--color-primary-light);
}

.card__icon {
    width: 60px;
    height: 60px;
    background-color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.card__icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-secondary);
    stroke-width: 2;
}

.card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.card__description {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

/* === Page Header === */
.page-header {
    background: linear-gradient(135deg, #f8f9fa 0%, #fff9e6 50%, #ffffff 100%);
    padding: calc(70px + var(--spacing-lg)) 0 var(--spacing-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: radial-gradient(circle at 80% 30%, rgba(245, 201, 63, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.page-header__title {
    font-size: 2.75rem;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.page-header__subtitle,
.page-header__description {
    font-size: 1.2rem;
    color: var(--color-text);
    max-width: 700px;
    position: relative;
    z-index: 1;
    margin: 0 auto;
}

/* === Content Section === */
.content-section {
    background-color: var(--color-white);
}

.content-section--alt {
    background-color: var(--color-bg-light);
}

/* === CTA Section === */
.cta {
    background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(245, 201, 63, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.cta__content {
    position: relative;
    z-index: 1;
}

.cta__title {
    color: var(--color-white);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.cta__description {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
    line-height: 1.7;
}

/* === Footer === */
.footer {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0 var(--spacing-sm);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.footer__logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.footer__logo-title {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
}

.footer__logo-subtitle {
    font-size: 0.625rem;
    opacity: 0.8;
    text-transform: uppercase;
}

.footer__title {
    color: var(--color-primary);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.footer__links {
    list-style: none;
}

.footer__links li {
    margin-bottom: var(--spacing-xs);
}

.footer__links a {
    color: rgba(255, 255, 255, 0.8);
}

.footer__links a:hover {
    color: var(--color-primary);
}

.footer__description,
.footer__contact {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9375rem;
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* === Form Styles === */
.form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form__label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.form__input,
.form__select,
.form__textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form__textarea {
    resize: vertical;
    min-height: 150px;
}

.form__message {
    padding: var(--spacing-sm);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-sm);
}

.form__message--success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form__message--error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* === List Styles === */
.simple-list {
    list-style: none;
    padding-left: 0;
}

.simple-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-md);
    position: relative;
}

.simple-list li::before {
    content: "•";
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.5rem;
    position: absolute;
    left: 0;
}

/* === Utility Classes === */
.text-center {
    text-align: center;
}

.text-primary {
    color: var(--color-primary-dark);
}

.bg-light {
    background-color: var(--color-bg-light);
}

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* === Event Images === */
.event-images img {
    transition: transform var(--transition);
}

.event-images img:hover {
    transform: scale(1.02);
}

/* === Member Photos === */
.member-card__image {
    overflow: hidden;
    border-radius: var(--radius);
    background: var(--color-bg-light);
}

.member-card__image img {
    transition: transform var(--transition), opacity var(--transition);
}

.member-card--leader:hover .member-card__image img {
    transform: scale(1.05);
}

/* === Responsive Images === */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* === Event Cards with Images === */
.card img {
    transition: transform var(--transition);
}

.card:hover img {
    transform: scale(1.03);
}

/* ===================================
   UTILITY CLASSES - Replace Inline Styles
   =================================== */

/* Event Date Badge */
.event-date-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-text-dark);
    padding: 0.4rem 1rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    box-shadow: 0 2px 8px rgba(245, 201, 63, 0.3);
    letter-spacing: 0.3px;
}

/* Member Photo */
.member-photo {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-full);
    object-fit: cover;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
}

.member-photo:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* Event Images Grid */
.event-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.event-photo {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition), box-shadow var(--transition);
}

.event-photo:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

/* Info Box */
.info-box {
    background: var(--color-background-alt);
    padding: 2rem;
    border-radius: var(--radius-lg);
    max-width: 800px;
    margin: 0 auto 2rem;
}

.info-box h3 {
    color: var(--color-primary-dark);
    margin-bottom: 1rem;
}

.info-box-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    text-align: left;
}

.info-box-item strong {
    display: block;
    margin-bottom: 0.5rem;
}

.info-box-item p {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: 0.5rem;
}

/* CTA Section */
.cta-content {
    text-align: center;
    padding: 2rem 0;
}

.cta-text {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-text-small {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-link {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 1rem;
    display: block;
}

.cta-link a {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

/* Card with Image */
.card-with-image {
    overflow: hidden;
}

.card-image-top {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin: -1.5rem -1.5rem 1rem -1.5rem;
    border-radius: var(--radius) var(--radius) 0 0;
}

/* Member Role Label */
.member-role {
    color: var(--color-primary-dark);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* Grid Utilities */
.grid-auto-fit {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.grid-auto-fit-lg {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* Text Center */
.text-center {
    text-align: center;
}

/* Spacing Utilities */
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

/* Display Utilities */
.hidden { display: none; }

/* ===================================
   PAGE-SPECIFIC STYLES
   =================================== */

/* === About Page === */
.about-mission {
    padding: var(--spacing-xl) 0;
}

.about-mission__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    align-items: center;
}

.about-mission__content {
    max-width: 600px;
}

.about-mission__text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.about-mission__image {
    text-align: center;
}

.about-mission__img {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-vision {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.vision__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.vision__card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.vision__card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.vision__card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.vision__card-icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-secondary);
    stroke-width: 2;
}

.vision__card-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.vision__card-description {
    color: var(--color-text-light);
    line-height: 1.6;
}

.about-goals {
    padding: var(--spacing-xl) 0;
}

.goals__list {
    max-width: 900px;
    margin: 0 auto;
}

.goal {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.goal:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.goal__number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
    min-width: 60px;
}

.goal__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.goal__description {
    color: var(--color-text-light);
    line-height: 1.7;
}

.about-utrecht {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.about-utrecht__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    align-items: center;
}

.about-utrecht__text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.about-utrecht__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.stat {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.stat:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat__number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
    line-height: 1;
}

.stat__label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* === Resources Page === */
.resource-categories {
    background-color: var(--color-bg-light);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 70px;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

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

.resource-nav__btn {
    padding: 0.625rem 1.25rem;
    background: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font-primary);
    font-size: 0.95rem;
}

.resource-nav__btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    background: var(--color-primary-light);
}

.resource-nav__btn.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-secondary);
    border-color: var(--color-primary-dark);
    box-shadow: 0 4px 12px rgba(245, 201, 63, 0.3);
}

.resources-section {
    padding: var(--spacing-xl) 0;
}

.resources__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.resource-card {
    background: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary-light);
}

.resource-card__icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.resource-card__icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-secondary);
    stroke-width: 2;
}

.resource-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.resource-card__description {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
    flex-grow: 1;
}

.resource-card__tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-sm);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-bg-light);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-text);
    font-weight: 500;
}

.resource-card__link {
    color: var(--color-primary-dark);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.resource-card__link:hover {
    color: var(--color-primary);
    transform: translateX(5px);
}

.resources__links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.papers__list {
    max-width: 900px;
    margin: 0 auto;
}

.paper-card {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-primary);
    transition: all var(--transition);
}

.paper-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.paper-card__year {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
    min-width: 80px;
}

.paper-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.paper-card__authors {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-style: italic;
    margin-bottom: var(--spacing-xs);
}

.paper-card__description {
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.paper-card__tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* === Members Page === */
.members-leadership {
    padding: var(--spacing-xl) 0;
}

.leadership__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.member-card {
    background: var(--color-white);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}

.member-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.member-card--leader {
    border-top: 4px solid var(--color-primary);
}

.member-card__image {
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: var(--color-bg-light);
}

.member-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.member-card:hover .member-card__image img {
    transform: scale(1.05);
}

.member-card__content {
    padding: var(--spacing-md);
}

.member-card__name {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.member-card__role {
    color: var(--color-primary-dark);
    font-weight: 700;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

.member-card__affiliation {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
}

.member-card__bio {
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

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

.member-card__link {
    width: 40px;
    height: 40px;
    background: var(--color-bg-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    color: var(--color-text);
}

.member-card__link:hover {
    background: var(--color-primary);
    color: var(--color-secondary);
    transform: translateY(-3px);
}

.member-card__link svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.members-active {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.research-areas {
    padding: var(--spacing-xl) 0;
}

.research-areas__grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    max-width: 900px;
    margin: 0 auto;
}

.research-tag {
    padding: 0.625rem 1.25rem;
    background: var(--color-white);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius);
    font-weight: 600;
    color: var(--color-text);
    transition: all var(--transition);
    font-size: 0.95rem;
}

.research-tag:hover {
    background: var(--color-primary);
    color: var(--color-secondary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.member-stats {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-card__number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary-dark);
    font-family: var(--font-heading);
    line-height: 1;
}

.stat-card__label {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin: var(--spacing-xs) 0;
    font-weight: 600;
}

.stat-card__description {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* === Events Page === */
.event-types {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.event-types__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.event-type {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.event-type:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.event-type__icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
}

.event-type__icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-secondary);
    stroke-width: 2;
}

.event-type__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.event-type__description {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.events-upcoming {
    padding: var(--spacing-xl) 0;
}

.events-past {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.past-events__timeline {
    max-width: 900px;
    margin: 0 auto;
}

.timeline-item {
    position: relative;
    padding-left: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-left: 3px solid var(--color-primary);
}

.timeline-item:last-child {
    padding-bottom: 0;
    border-left-color: transparent;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 0;
    width: 17px;
    height: 17px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-white);
}

.timeline-item__date {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
    box-shadow: 0 2px 8px rgba(245, 201, 63, 0.3);
}

.timeline-item__content {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.timeline-item__content:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.timeline-item__title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary);
}

.timeline-item__description {
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.timeline-item__tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-primary-light);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-text-dark);
    font-weight: 600;
}

/* === Contact Page === */
.why-join {
    padding: var(--spacing-xl) 0;
}

.benefits__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.benefit {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all var(--transition);
}

.benefit:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.benefit__icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
}

.benefit__icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-secondary);
    stroke-width: 2;
}

.benefit__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.benefit__description {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

.membership {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.eligibility__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
}

.eligibility-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.eligibility-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.eligibility-card__icon {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    color: var(--color-secondary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
}

.eligibility-card__title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-secondary);
}

.eligibility-card__description {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

.membership__note {
    max-width: 700px;
    margin: var(--spacing-lg) auto 0;
    padding: var(--spacing-md);
    background: var(--color-white);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius);
}

.contact-form-section {
    padding: var(--spacing-xl) 0;
}

.contact__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.contact__info {
    max-width: 500px;
}

.contact__description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

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

.contact__detail {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--color-bg-light);
    border-radius: var(--radius);
}

.contact__detail-icon {
    width: 50px;
    height: 50px;
    background: var(--color-primary);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact__detail-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-secondary);
    stroke-width: 2;
}

.contact__detail-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 0.25rem;
}

.contact__detail-link {
    color: var(--color-primary-dark);
    text-decoration: none;
    font-weight: 500;
}

.contact__detail-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.contact__detail-text {
    color: var(--color-text);
    line-height: 1.6;
}

.contact__social {
    padding: var(--spacing-md);
    background: var(--color-bg-light);
    border-radius: var(--radius-lg);
}

.contact__social-title {
    font-size: 1.1rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.contact__social-text {
    color: var(--color-text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

.contact__form {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form__group {
    margin-bottom: var(--spacing-md);
}

.form__label {
    display: block;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 0.5rem;
}

.form__input,
.form__select,
.form__textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(245, 201, 63, 0.1);
}

.form__textarea {
    resize: vertical;
    min-height: 100px;
}

.form__note {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.form__note p {
    margin-bottom: 0.5rem;
}

.form__message {
    padding: var(--spacing-sm);
    border-radius: var(--radius);
    margin-top: var(--spacing-sm);
    font-weight: 500;
}

.form__message--success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form__message--error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.faq {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

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

.faq__item {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.faq__item:hover {
    box-shadow: var(--shadow-md);
}

.faq__question {
    font-size: 1.25rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-xs);
}

.faq__answer {
    color: var(--color-text);
    line-height: 1.7;
}