/* Import M PLUS 2 font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=M+PLUS+2:wght@300;400;500;700;900&display=swap');

/* Brand Color Variables */
:root {
    /* Primary Colors */
    --indigo: #550088;
    --dark-indigo: #25003B;
    --black-indigo: #11001B;
    
    /* Secondary Colors */
    --dark-lilac: #9966B8;
    --lilac: #DFCEE8;
    
    /* Accent Color */
    --pink-steel: #B6007C;
    
    /* Text Colors */
    --white: #FFFFFF;
    --dark-gray: #525252;
    
    /* Typography */
    --font-family: 'M PLUS 2', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    font-weight: 400;
    font-size: 18px; /* Body Copy digital size */
    line-height: 1.32; /* 132% leading */
    color: var(--dark-gray);
    background-color: var(--white);
    letter-spacing: 0.03em; /* 3% kerning */
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Typography Hierarchy */
h1 {
    font-family: var(--font-family);
    font-weight: 900; /* Black weight */
    font-size: 60px; /* Headline digital size */
    line-height: 1.2; /* 120% leading */
    color: var(--dark-indigo);
    letter-spacing: 0; /* 0% kerning */
    margin-bottom: 20px;
}

h2 {
    font-family: var(--font-family);
    font-weight: 700; /* Bold weight */
    font-size: 36px; /* Subhead digital size */
    line-height: 1.32; /* 132% leading */
    color: var(--dark-indigo);
    letter-spacing: 0; /* 0% kerning */
    margin-bottom: 16px;
}

h3 {
    font-family: var(--font-family);
    font-weight: 500; /* Medium weight */
    font-size: 16px; /* Eyebrow digital size */
    line-height: 1.2; /* 120% leading */
    color: var(--pink-steel);
    letter-spacing: 0.12em; /* 12% kerning */
    text-transform: uppercase;
    margin-bottom: 12px;
}

/* Header */
header {
    background: var(--white);
    padding: 0;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(85, 0, 136, 0.1);
    border: 1px solid var(--lilac);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px;
    min-height: 80px;
}

.header-left {
    flex: 1;
}

.header-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
}

header h1 {
    font-size: 36px; /* Smaller for better balance */
    color: var(--indigo);
    margin: 0;
    font-weight: 700;
}

.nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: var(--indigo);
    font-weight: 500;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    white-space: nowrap;
}

.nav a:hover {
    background: var(--lilac);
    border-color: var(--dark-lilac);
    color: var(--dark-indigo);
}

.nav a.logout-btn {
    color: var(--pink-steel);
    border-color: var(--pink-steel);
}

.nav a.logout-btn:hover {
    background: var(--pink-steel);
    color: var(--white);
    border-color: var(--pink-steel);
}

.user-info {
    color: var(--dark-gray);
    font-size: 12px;
    font-weight: 400;
    text-align: right;
}

.user-info .admin-link {
    color: var(--dark-gray);
    text-decoration: underline;
    opacity: 0.7;
}

.user-info .admin-link:hover {
    opacity: 1;
    color: var(--indigo);
}


/* Footer */
.footer {
    margin-top: 30px;
    padding: 16px;
    text-align: center;
    color: var(--dark-indigo);
    background: var(--lilac);
    border: 1px solid var(--dark-lilac);
    border-radius: 8px;
    font-weight: 600;
}

/* Search Bar */
.search-bar {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(85, 0, 136, 0.1);
    border: 1px solid var(--lilac);
}

.search-bar input {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--lilac);
    border-radius: 8px;
    font-size: 18px;
    font-family: var(--font-family);
    font-weight: 400;
    color: var(--dark-gray);
    transition: border-color 0.3s ease;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(85, 0, 136, 0.1);
}

.search-bar input::placeholder {
    color: var(--dark-lilac);
}

/* Filters */
.filters {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(85, 0, 136, 0.1);
    border: 1px solid var(--lilac);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.filters-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-actions {
    display: flex;
    gap: 15px;
    align-items: center;
    justify-content: flex-end;
    margin-left: auto;
}

.filters select, .filters button {
    padding: 12px 20px;
    border: 2px solid var(--lilac);
    border-radius: 8px;
    font-size: 16px;
    font-family: var(--font-family);
    font-weight: 500;
    background: var(--white);
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--dark-gray);
}

/* Improve dropdown arrow styling */
.filters select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%23333' d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 40px;
}

.filters select:focus {
    outline: none;
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(85, 0, 136, 0.1);
}

.filter-operator {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 20px;
    background: var(--lilac);
    border-radius: 8px;
    border: 2px solid var(--dark-lilac);
}

.filter-operator label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
    color: var(--dark-indigo);
    font-size: 16px;
}

.filter-operator input[type="radio"] {
    cursor: pointer;
    width: 18px;
    height: 18px;
    accent-color: var(--indigo);
}

.filters button {
    background: var(--indigo);
    color: var(--white);
    border: 2px solid var(--indigo);
    font-weight: 500;
    font-size: 16px;
}

.filters button:hover {
    background: var(--dark-indigo);
    border-color: var(--dark-indigo);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(85, 0, 136, 0.3);
}

.filters button[style*="background: #95a5a6"] {
    background: var(--dark-gray) !important;
    border-color: var(--dark-gray) !important;
}

.filters button[style*="background: #95a5a6"]:hover {
    background: var(--black-indigo) !important;
    border-color: var(--black-indigo) !important;
}

/* Date Controls */
.date-controls {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.date-sort {
    display: flex;
    align-items: center;
    gap: 10px;
}

.date-sort select {
    padding: 8px 12px;
    border: 2px solid var(--lilac);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-family);
    background: var(--white);
    color: var(--dark-gray);
    min-width: 140px;
}

.date-range {
    display: flex;
    align-items: center;
    gap: 10px;
}

.date-range select {
    padding: 8px 12px;
    border: 2px solid var(--lilac);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-family);
    background: var(--white);
    color: var(--dark-gray);
    min-width: 140px;
}

.date-range label {
    font-size: 14px;
    font-weight: 500;
    color: var(--dark-gray);
    white-space: nowrap;
}

/* Results */
#results {
    background: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(85, 0, 136, 0.1);
    border: 1px solid var(--lilac);
}

.publication-card {
    padding: 24px;
    border-bottom: 1px solid var(--lilac);
    transition: all 0.3s ease;
    border-radius: 8px;
    margin-bottom: 16px;
}

.publication-card:hover {
    background: var(--lilac);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(85, 0, 136, 0.15);
}

.publication-card:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.publication-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark-indigo);
    margin-bottom: 12px;
    line-height: 1.3;
}

.publication-title a {
    color: var(--indigo);
    text-decoration: none;
    transition: color 0.3s ease;
}

.publication-title a:hover {
    color: var(--pink-steel);
    text-decoration: underline;
}

.more-info-btn {
    margin-top: 16px;
    padding: 12px 24px;
    background: var(--pink-steel);
    color: var(--white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    font-family: var(--font-family);
    transition: all 0.3s ease;
}

.more-info-btn:hover {
    background: var(--indigo);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(182, 0, 124, 0.3);
}

.more-info-btn.active {
    background: var(--dark-indigo);
}

.publication-details {
    margin-top: 20px;
    padding: 24px;
    background: var(--lilac);
    border-radius: 8px;
    border-left: 4px solid var(--pink-steel);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        max-height: 1000px;
        transform: translateY(0);
    }
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.detail-item {
    padding: 16px;
    background: var(--white);
    border-radius: 8px;
    font-size: 16px;
    border: 1px solid var(--dark-lilac);
}

.detail-item.full-width {
    grid-column: 1 / -1;
}

.detail-item strong {
    color: var(--dark-indigo);
    margin-right: 8px;
    font-weight: 600;
}

.detail-item a {
    color: var(--indigo);
    text-decoration: none;
    word-break: break-all;
    font-weight: 500;
}

.detail-item a:hover {
    color: var(--pink-steel);
    text-decoration: underline;
}

.publication-meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    color: var(--dark-lilac);
    font-size: 16px;
    margin-top: 12px;
}

.publication-meta span {
    display: flex;
    align-items: center;
}

.publication-meta strong {
    margin-right: 8px;
    color: var(--dark-indigo);
    font-weight: 600;
}

/* Admin Section */
.admin-section {
    background: var(--white);
    padding: 40px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(85, 0, 136, 0.1);
    border: 1px solid var(--lilac);
}

.admin-section h2 {
    margin-bottom: 30px;
    color: var(--dark-indigo);
}

.publication-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 20px;
    flex-wrap: wrap;
}

.publication-list-header input[type="text"] {
    flex: 1;
    min-width: 200px;
    padding: 12px 16px;
    border: 2px solid var(--lilac);
    border-radius: 8px;
    font-size: 16px;
    font-family: var(--font-family);
}

.publication-list-header .date-controls {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.publication-list-header .date-sort {
    display: flex;
    align-items: center;
    gap: 8px;
}

.publication-list-header .date-sort select {
    padding: 8px 12px;
    border: 2px solid var(--lilac);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-family);
    background: var(--white);
    color: var(--dark-gray);
    min-width: 120px;
}

.publication-list-header .date-range {
    display: flex;
    align-items: center;
    gap: 8px;
}

.publication-list-header .date-range select {
    padding: 8px 12px;
    border: 2px solid var(--lilac);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--font-family);
    background: var(--white);
    color: var(--dark-gray);
    min-width: 140px;
}

.publication-list-header .date-range label {
    font-size: 14px;
    font-weight: 500;
    color: var(--dark-gray);
    white-space: nowrap;
}

.publication-list-header #pubCount {
    font-size: 14px;
    color: var(--dark-gray);
    font-weight: 500;
    white-space: nowrap;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-indigo);
    font-size: 16px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid var(--lilac);
    border-radius: 8px;
    font-size: 16px;
    font-family: var(--font-family);
    font-weight: 400;
    color: var(--dark-gray);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(85, 0, 136, 0.1);
}

.form-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    accent-color: var(--indigo);
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 8px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    cursor: pointer;
}

.radio-group input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--indigo);
}

.submit-btn {
    background: var(--indigo);
    color: var(--white);
    padding: 16px 32px;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: var(--dark-indigo);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(85, 0, 136, 0.3);
}

#csvFile {
    margin-right: 16px;
}

.message {
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    font-weight: 500;
    font-size: 16px;
}

.message.success {
    background: rgba(153, 102, 184, 0.1);
    color: var(--dark-indigo);
    border: 2px solid var(--dark-lilac);
}

.message.error {
    background: rgba(182, 0, 124, 0.1);
    color: var(--dark-indigo);
    border: 2px solid var(--pink-steel);
}

.publication-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 20px;
}

.publication-list-header input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--lilac);
    border-radius: 8px;
    font-size: 16px;
    font-family: var(--font-family);
}

.publication-list-header input:focus {
    outline: none;
    border-color: var(--indigo);
    box-shadow: 0 0 0 3px rgba(85, 0, 136, 0.1);
}

#publicationsList {
    max-height: 600px;
    overflow-y: auto;
}

.pub-item {
    padding: 20px;
    border: 2px solid var(--lilac);
    border-radius: 8px;
    margin-bottom: 16px;
    background: var(--white);
    transition: all 0.3s ease;
}

.pub-item:hover {
    background: var(--lilac);
    border-color: var(--dark-lilac);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(85, 0, 136, 0.15);
}

.pub-item-title {
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--dark-indigo);
}

.pub-item-meta {
    font-size: 16px;
    color: var(--dark-lilac);
    margin-bottom: 16px;
}

.pub-item-actions {
    display: flex;
    gap: 12px;
}

.pub-item-actions button {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-family);
    transition: all 0.3s ease;
}

.btn-edit {
    background: var(--indigo);
    color: var(--white);
}

.btn-edit:hover {
    background: var(--dark-indigo);
    transform: translateY(-1px);
}

.btn-delete {
    background: var(--pink-steel);
    color: var(--white);
}

.btn-delete:hover {
    background: var(--dark-indigo);
    transform: translateY(-1px);
}

.btn-cancel {
    background: var(--dark-gray);
    color: var(--white);
    padding: 16px 32px;
    border: 2px solid var(--dark-gray);
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-cancel:hover {
    background: var(--black-indigo);
    border-color: var(--black-indigo);
    transform: translateY(-1px);
}

/* Modal */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(17, 0, 27, 0.8);
}

.modal-content {
    background-color: var(--white);
    margin: 2% auto;
    padding: 40px;
    border-radius: 12px;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(17, 0, 27, 0.3);
    border: 2px solid var(--lilac);
}

.close {
    color: var(--dark-lilac);
    float: right;
    font-size: 32px;
    font-weight: bold;
    cursor: pointer;
    line-height: 20px;
    transition: color 0.3s ease;
}

.close:hover,
.close:focus {
    color: var(--pink-steel);
}

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-pending {
    background: rgba(182, 0, 124, 0.1);
    color: var(--pink-steel);
    border: 1px solid var(--pink-steel);
}

.status-rejected {
    background: rgba(82, 82, 82, 0.1);
    color: var(--dark-gray);
    border: 1px solid var(--dark-gray);
}

.status-approved {
    background: rgba(153, 102, 184, 0.1);
    color: var(--dark-lilac);
    border: 1px solid var(--dark-lilac);
}

/* Publication count */
#publicationCount {
    margin: 20px 0;
    font-size: 18px;
    color: var(--dark-indigo);
    font-weight: 600;
    text-align: center;
    padding: 16px;
    background: var(--lilac);
    border-radius: 8px;
    border: 2px solid var(--dark-lilac);
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .header-right {
        align-items: center;
        width: 100%;
    }
    
    header h1 {
        font-size: 28px;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 6px;
    }
    
    .nav a {
        font-size: 13px;
        padding: 6px 12px;
    }
    
    .user-info {
        text-align: center;
    }
    
    .filters {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-operator {
        justify-content: center;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .publication-meta {
        flex-direction: column;
        gap: 8px;
    }
    
    /* Login page improvements */
    .login-container {
        max-width: 90vw !important;
        margin: 50px auto !important;
        padding: 20px !important;
    }
    
    .login-form {
        padding: 30px 20px !important;
        border-radius: 12px !important;
    }
    
    .login-form h1 {
        font-size: 24px !important;
        margin-bottom: 20px !important;
    }
    
    .login-form input {
        padding: 16px !important;
        font-size: 16px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    
    .login-form button {
        padding: 16px !important;
        font-size: 18px !important;
        width: 100% !important;
    }
}

/* Extra small screens */
@media (max-width: 480px) {
    .container {
        padding: 12px;
    }
    
    header h1 {
        font-size: 24px;
    }
    
    .nav a {
        font-size: 12px;
        padding: 4px 8px;
    }
    
    .search-bar, .filters, .admin-section {
        padding: 20px;
    }
    
    .form-grid {
        gap: 16px;
    }
    
    /* Login page for very small screens */
    .login-container {
        max-width: 95vw !important;
        margin: 30px auto !important;
    }
    
    .login-form {
        padding: 20px 15px !important;
    }
    
    .login-form h1 {
        font-size: 20px !important;
    }
    
    .login-form h2 {
        font-size: 18px !important;
    }
    
    .login-form p {
        font-size: 14px !important;
    }
}