/**
 * SNU Research Portal - Main Stylesheet
 * ======================================
 * Aligned with official SNU website branding (snu.edu.in)
 * 
 * BRAND COLORS:
 * - Primary Blue: #0072BC (SNU official blue)
 * - Secondary Blue: #005A94 (Darker shade)
 * - Accent Orange: #E07B39 (For active states)
 * - Light Blue: #E8F4FC (Background tints)
 */

/* ===== CSS VARIABLES ===== */
:root {
    /* Brand Colors - SNU Official */
    --primary-blue: #0072BC;
    --primary-blue-dark: #005A94;
    --primary-blue-light: #E8F4FC;
    --accent-orange: #E07B39;
    --accent-orange-dark: #C96A2E;
    --tab-blue: #4A90A4;
    
    /* Text Colors */
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #6a6a6a;
    --text-white: #ffffff;
    
    /* Background Colors */
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-gray: #f0f2f5;
    --bg-dark: #1a1a2e;
    
    /* Border Colors */
    --border-light: #e0e0e0;
    --border-medium: #c0c0c0;
    
    /* Fonts - Matching SNU website */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Layout */
    --max-width: 1280px;
    --header-height: 80px;
    
    /* Border Radius */
    --border-radius: 4px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-dark);
}

h1 { font-size: var(--font-size-4xl); margin-bottom: var(--spacing-lg); }
h2 { font-size: var(--font-size-3xl); margin-bottom: var(--spacing-md); }
h3 { font-size: var(--font-size-2xl); margin-bottom: var(--spacing-md); }
h4 { font-size: var(--font-size-xl); margin-bottom: var(--spacing-sm); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-medium);
}

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

a:hover {
    color: var(--primary-blue-dark);
    text-decoration: underline;
}

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

/* ===== LAYOUT ===== */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section {
    padding: var(--spacing-3xl) 0;
}

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

/* ===== HEADER - Matching SNU Website ===== */
.header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

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

.header__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.header__logo img {
    height: 55px;
    width: auto;
}

.header__logo-text {
    display: flex;
    flex-direction: column;
    margin-left: var(--spacing-sm);
}

.header__logo-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary-blue);
    letter-spacing: 0.5px;
}

.header__logo-subtitle {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    letter-spacing: 0.3px;
}

/* ===== NAVIGATION ===== */
.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav__list {
    display: flex;
    list-style: none;
    gap: 0;
    background-color: var(--primary-blue);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.nav__link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-white);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-right: 1px solid rgba(255,255,255,0.1);
}

.nav__link:last-child {
    border-right: none;
}

.nav__link:hover,
.nav__link--active {
    background-color: var(--primary-blue-dark);
    color: var(--text-white);
    text-decoration: none;
}

/* Search Button */
.nav__search-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    margin-left: var(--spacing-sm);
}

.nav__search-btn:hover {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.nav__search-btn:hover .nav__search-icon {
    stroke: white;
}

.nav__search-icon {
    width: 18px;
    height: 18px;
    stroke: var(--text-medium);
}

/* Mobile Navigation Toggle */
.nav__toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav__toggle-icon,
.nav__toggle-icon::before,
.nav__toggle-icon::after {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-dark);
    transition: all var(--transition-fast);
}

.nav__toggle-icon {
    position: relative;
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
    content: '';
    position: absolute;
    left: 0;
}

.nav__toggle-icon::before { top: -7px; }
.nav__toggle-icon::after { top: 7px; }

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: var(--text-white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://snu.edu.in/site/assets/files/7942/student_life_2-1.1600x0.webp') center/cover;
    opacity: 0.15;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero__title {
    color: var(--text-white);
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero__subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}

/* Statistics Bar */
.hero__stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    background-color: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
}

.hero__stat {
    text-align: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    min-width: 120px;
    border-right: 1px solid rgba(255,255,255,0.2);
}

.hero__stat:last-child {
    border-right: none;
}

.hero__stat-number {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-white);
}

.hero__stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.85);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== SCHOOLS & CENTERS SECTION ===== */
.schools-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--text-dark);
    font-size: var(--font-size-2xl);
}

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

.school-card {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background-color: var(--bg-light);
    border: 2px solid var(--border-light);
    border-radius: var(--border-radius-lg);
    text-align: center;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-dark);
    text-decoration: none;
    transition: all var(--transition-fast);
    min-height: 100px;
}

.school-card:hover {
    background-color: var(--primary-blue);
    color: var(--text-white);
    border-color: var(--primary-blue);
    text-decoration: none;
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.centers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.center-card {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background-color: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    text-align: center;
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--text-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
    min-height: 70px;
}

.center-card:hover {
    background-color: var(--primary-blue-light);
    color: var(--primary-blue-dark);
    border-color: var(--primary-blue);
    text-decoration: none;
}

/* ===== LATEST SECTIONS ===== */
.latest-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-gray);
}

.latest-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
}

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

.latest-box__header {
    background-color: var(--primary-blue);
    padding: var(--spacing-md) var(--spacing-lg);
}

.latest-box__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-white);
    margin: 0;
}

.latest-box__content {
    padding: var(--spacing-lg);
    max-height: 400px;
    overflow-y: auto;
}

/* Projects Table */
.projects-table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.projects-table th,
.projects-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.projects-table th {
    font-weight: 600;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

.projects-table tr:hover {
    background-color: var(--bg-light);
}

/* Publications Mini List */
.pub-mini {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-light);
}

.pub-mini:last-child {
    border-bottom: none;
}

.pub-mini__type {
    display: inline-block;
    font-size: var(--font-size-xs);
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.pub-mini__type--open-access {
    color: #28a745;
    font-weight: 500;
}

.pub-mini__title {
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.pub-mini__title a {
    color: var(--primary-blue);
}

.pub-mini__authors {
    font-size: var(--font-size-xs);
    color: var(--text-medium);
}

.pub-mini__source {
    font-size: var(--font-size-xs);
    color: var(--text-light);
    font-style: italic;
}

/* ===== EXTERNAL RESOURCES ===== */
.resources-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.resource-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--bg-white);
    border: 2px solid var(--primary-blue);
    border-radius: var(--border-radius);
    color: var(--primary-blue);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.resource-btn:hover {
    background-color: var(--primary-blue);
    color: var(--text-white);
    text-decoration: none;
}

/* ===== FOOTER - Matching SNU Website ===== */
.footer {
    background-color: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__brand {
    padding-right: var(--spacing-xl);
}

.footer__brand img {
    height: 60px;
    margin-bottom: var(--spacing-md);
}

.footer__brand-text {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.7);
    line-height: 1.7;
}

.footer__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
}

.footer__list {
    list-style: none;
}

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

.footer__link {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--text-white);
    text-decoration: none;
}

.footer__contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.7);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

.footer__social {
    display: flex;
    gap: var(--spacing-md);
}

.footer__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.footer__social-link:hover {
    background-color: var(--primary-blue);
    color: var(--text-white);
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
    background-color: var(--bg-light);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.breadcrumb__list {
    display: flex;
    align-items: center;
    list-style: none;
    font-size: var(--font-size-sm);
}

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

.breadcrumb__item:not(:last-child)::after {
    content: '/';
    margin: 0 var(--spacing-sm);
    color: var(--text-light);
}

.breadcrumb__link {
    color: var(--text-medium);
}

.breadcrumb__current {
    color: var(--text-dark);
    font-weight: 500;
}

/* ===== RESEARCHER DIRECTORY ===== */
.directory-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
}

.directory-header h1 {
    color: white;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-3xl);
}

.directory-header p {
    color: rgba(255,255,255,0.9);
    margin: 0;
}

.filters {
    background-color: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

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

.filters__label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-medium);
}

.filters__select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    background-color: white;
    min-width: 200px;
}

.filters__search {
    flex: 1;
    min-width: 250px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
}

.filters__search:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.researcher-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.researcher-card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.2s ease;
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
}

.researcher-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.researcher-card__header {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
}

.researcher-card__photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 3px solid var(--primary-blue-light);
}

.researcher-card__photo-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: white;
    font-weight: 600;
    flex-shrink: 0;
}

.researcher-card__info {
    flex: 1;
}

.researcher-card__name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.researcher-card__name a {
    color: inherit;
    text-decoration: none;
}

.researcher-card__name a:hover {
    color: var(--primary-blue);
}

.researcher-card__title {
    font-size: var(--font-size-sm);
    color: var(--text-medium);
    margin-bottom: var(--spacing-xs);
}

.researcher-card__dept {
    font-size: var(--font-size-sm);
    color: var(--primary-blue);
}

.researcher-card__footer {
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.researcher-card__stats {
    display: flex;
    gap: var(--spacing-lg);
}

.researcher-card__stat {
    text-align: center;
}

.researcher-card__stat-number {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-blue);
    display: block;
}

.researcher-card__stat-label {
    font-size: var(--font-size-xs);
    color: var(--text-light);
}

.researcher-card__link {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.results-count {
    font-size: var(--font-size-sm);
    color: var(--text-medium);
    margin-bottom: var(--spacing-lg);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn--primary:hover {
    background-color: var(--primary-blue-dark);
    text-decoration: none;
}

.btn--secondary {
    background-color: var(--bg-white);
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
}

.btn--secondary:hover {
    background-color: var(--primary-blue);
    color: var(--text-white);
    text-decoration: none;
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .schools-grid,
    .centers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .latest-grid {
        grid-template-columns: 1fr;
    }
    
    .footer__grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .resources-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header__inner {
        flex-wrap: wrap;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__list {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--primary-blue);
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
    }
    
    .nav__list--open {
        display: flex;
    }
    
    .nav__link {
        padding: var(--spacing-md);
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .hero__stats {
        flex-direction: column;
        align-items: center;
    }
    
    .hero__stat {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.2);
        width: 100%;
    }
    
    .hero__stat:last-child {
        border-bottom: none;
    }
    
    .schools-grid,
    .centers-grid {
        grid-template-columns: 1fr;
    }
    
    .footer__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filters__group {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .filters__select,
    .filters__search {
        width: 100%;
    }
    
    .researcher-grid {
        grid-template-columns: 1fr;
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
    }
}