/* Clean, Minimalist Light Theme for Article Space */
:root {
    --bg-color: #f8fafc;
    --panel-bg: #ffffff;
    --panel-border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --accent-color: #db2777;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --transition-smooth: all 0.2s ease-in-out;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Minimalist Panel & Card Styling */
.glass-panel {
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

/* Auth Page Layout - Simple White */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    padding: 2rem;
    background-color: #ffffff; /* All-white background for login screen */
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    background-color: #ffffff;
    animation: fadeIn 0.4s ease-out;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.025em;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Form Controls - Simple & Clean */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.375rem;
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background-color: #ffffff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition-smooth);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.auth-btn {
    width: 100%;
    padding: 0.625rem;
    background-color: var(--text-primary); /* Charcoal/Black for minimalist feel */
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin-top: 0.75rem;
}

.auth-btn:hover {
    background-color: #1e293b;
}

.auth-switch {
    text-align: center;
    margin-top: 1.25rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.auth-switch a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Navigation - Clean & Minimalist */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: #ffffff;
    border-bottom: 1px solid var(--panel-border);
    margin-bottom: 2rem;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.025em;
}

.user-controls {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.user-tag {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.user-tag span {
    color: var(--text-primary);
    font-weight: 600;
}

/* General Buttons */
.btn {
    padding: 0.5rem 0.875rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
}

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

.btn-outline {
    background-color: transparent;
    border-color: #cbd5e1;
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: #f1f5f9;
}

.btn-danger {
    background-color: #fef2f2;
    color: var(--danger-color);
    border-color: #fca5a5;
}

.btn-danger:hover {
    background-color: var(--danger-color);
    color: #ffffff;
}

.btn-accent {
    background-color: #fdf2f8;
    color: var(--accent-color);
    border-color: #fbcfe8;
}

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

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    border-radius: 4px;
}

/* Dashboard Content layout */
.dashboard-container {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem 3rem 1.5rem;
    flex-grow: 1;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.search-bar {
    position: relative;
    max-width: 320px;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.25rem;
    border-radius: 6px;
    background-color: #ffffff;
    border: 1px solid #cbd5e1;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 0.85rem;
    pointer-events: none;
}

/* Article Cards Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.article-card {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: #ffffff;
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px -4px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
    border-color: #cbd5e1;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.article-author {
    font-weight: 600;
    color: var(--text-primary);
}

.article-date {
    font-style: normal;
}

.article-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    line-height: 1.35;
}

.article-excerpt {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    line-height: 1.5;
    flex-grow: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #f1f5f9;
    padding-top: 0.75rem;
    margin-top: auto;
}

.comment-count {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.comment-count:hover {
    color: var(--primary-color);
}

.card-actions {
    display: flex;
    gap: 0.375rem;
}

/* Modals - Plain White Minimal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.3);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 2rem;
    background-color: #ffffff;
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    transform: scale(0.95);
    transition: var(--transition-smooth);
}

.modal-backdrop.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 0.75rem;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    color: var(--text-primary);
}

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

/* Comments Section - Clean List */
.comments-section {
    margin-top: 1.5rem;
    border-top: 1px solid #f1f5f9;
    padding-top: 1.25rem;
}

.comments-title {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.comments-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    max-height: 200px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

.comment-item {
    background-color: #f8fafc;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    border-left: 2px solid #cbd5e1;
}

.comment-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.commenter-name {
    font-weight: 600;
    color: var(--text-primary);
}

.comment-body {
    font-size: 0.875rem;
    line-height: 1.4;
    color: #334155;
}

.comment-form {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.comment-input {
    flex-grow: 1;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    background-color: #ffffff;
    border: 1px solid #cbd5e1;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.875rem;
}

.comment-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Toasts - Clean Border Left */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 2000;
}

.toast {
    min-width: 260px;
    padding: 0.875rem 1.25rem;
    border-radius: 6px;
    background-color: #ffffff;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.875rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideIn 0.2s ease-out;
    border: 1px solid var(--panel-border);
    border-left: 4px solid var(--primary-color);
}

.toast-success {
    border-left-color: var(--success-color);
}

.toast-error {
    border-left-color: var(--danger-color);
}

.toast-info {
    border-left-color: var(--primary-color);
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
    margin-left: 0.75rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    grid-column: 1 / -1;
}

.empty-icon {
    font-size: 2.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

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

.empty-description {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .navbar {
        flex-direction: column;
        gap: 0.75rem;
        padding: 1rem;
    }
    .user-controls {
        width: 100%;
        justify-content: space-between;
    }
    .dashboard-header {
        flex-direction: column;
        align-items: stretch;
    }
    .search-bar {
        max-width: 100%;
    }
    .auth-card {
        padding: 1.5rem;
    }
    .modal-content {
        padding: 1.5rem;
    }
}