/* Read-only field style for editor */
.readonly-field {
    background-color: #23272f !important;
    color: #b0b3b8 !important;
    border: 1.5px solid #444 !important;
    opacity: 1 !important;
    cursor: not-allowed !important;
    box-shadow: none !important;
    transition: background 0.2s, color 0.2s, border 0.2s;
}

#readonly-banner {
    z-index: 10;
}

/* ============================================
   Vantanote - Main Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --error-muted: #fee2e2;
    --error-outline: #fca5a5;
    --warning-color: #f59e0b;
    --info-color: #0ea5e9;

    /* Neutral Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;

    /* Dark Mode */
    --dark-bg-primary: #0f172a;
    --dark-bg-secondary: #1e293b;
    --dark-bg-tertiary: #334155;
    --dark-text-primary: #f1f5f9;
    --dark-text-secondary: #cbd5e1;
    --dark-text-tertiary: #94a3b8;
    --dark-border-color: #334155;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --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: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: var(--dark-bg-primary);
        --bg-secondary: var(--dark-bg-secondary);
        --bg-tertiary: var(--dark-bg-tertiary);
        --text-primary: var(--dark-text-primary);
        --text-secondary: var(--dark-text-secondary);
        --text-tertiary: var(--dark-text-tertiary);
        --border-color: var(--dark-border-color);
    }
}

/* ============================================
   Base Styles
   ============================================ */

/* Use border-box everywhere to make sizing predictable */
html,
body,
*,
*::before,
*::after {
    box-sizing: border-box;
}

/* Modal styles */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: calc(var(--spacing-lg));
}

.modal-content {
    position: relative;
    z-index: calc(var(--z-modal) + 1);
    width: 100%;
    max-width: 560px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    animation: modalEnter 180ms var(--transition-fast) ease-out;
}

@keyframes modalEnter {
    from {
        transform: translateY(-8px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-lg);
    margin: 0;
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 20px;
    line-height: 1;
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
}

.modal-body {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
}

.modal-footer {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    justify-content: flex-end;
    background: transparent;
}

/* If modal body is empty (no details provided), collapse it to avoid large gaps
   and remove the footer separator so only a single line renders. */
.modal-body:empty {
    display: none;
    padding: 0;
    min-height: 0;
}

.modal-content.no-body .modal-footer {
    border-top: none;
    padding-top: calc(var(--spacing-sm) / 2);
}

/* Slightly reduce header bottom padding for a tighter layout when body is empty */
.modal-header {
    padding-bottom: calc(var(--spacing-sm) / 1.5);
}

/* Make modal buttons full-width stacked on small screens */
@media (max-width: 639px) {
    .modal-content {
        max-width: 100%;
    }

    .modal-footer {
        flex-direction: column-reverse;
        align-items: stretch;
    }

    .modal-footer .btn {
        width: 100%;
    }
}

/* Prevent long words/URLs from causing horizontal overflow */
.article-card,
.article-preview,
.article-view-content,
.article-list,
.article-actions,
.page {
    max-width: 100%;
}

.article-card p,
.article-preview p,
.article-view-content p,
.article-view-content,
.article-content,
.article-preview,
.card {
    overflow-wrap: anywhere;
    word-break: break-word;
    hyphens: auto;
}

/* Make preformatted text wrap instead of causing overflow */
pre,
code,
kbd,
samp {
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
}

/* Minor layout tweak: ensure top-level containers don't exceed viewport */
html,
body {
    min-width: 0;
}


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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* ============================================
   Typography
   ============================================ */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-base);
}

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

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

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

/* ============================================
   Forms
   ============================================ */

input,
textarea,
select {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

input::placeholder,
textarea::placeholder {
    color: var(--text-tertiary);
}

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

/* ============================================
   Buttons
   ============================================ */

button,
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-success {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    transition: all var(--transition-fast);
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: white;
    /* ensure link text stays visible against primary background */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border-color: var(--text-tertiary);
}

.btn-secondary:active {
    background-color: var(--bg-tertiary);
}

/* Prominent danger button (use sparingly for very destructive actions) */
.btn-danger {
    background-color: var(--error-color);
    color: white;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-danger:hover {
    background-color: #dc2626;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.btn-danger:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

/* Soft danger variant - less visually aggressive */
.btn-danger--soft,
.btn-danger.soft {
    background-color: transparent;
    color: var(--error-color);
    border: 1px solid var(--border-color);
    box-shadow: none;
}

.btn-danger--soft:hover,
.btn-danger.soft:hover {
    background-color: var(--error-muted);
    border-color: var(--error-outline);
}

.btn-danger--soft:active,
.btn-danger.soft:active {
    background-color: var(--error-muted);
    transform: translateY(0);
}

/* Small / compact danger (icon-only) */
.btn-danger.btn-sm {
    padding: 6px 10px;
    min-height: 36px;
}


.btn-success {
    background-color: var(--success-color);
    color: white;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-success:hover {
    background-color: #059669;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.btn-success:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

button:disabled,
.btn-primary:disabled,
.btn-secondary:disabled,
.btn-danger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Article actions layout */
.article-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.article-actions .btn {
    flex: 1 1 auto;
}

/* Button sizes */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

/* ============================================
   Layout
   ============================================ */

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

#app-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

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

.page {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
}

/* ============================================
   Utilities
   ============================================ */

.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.gap-sm {
    gap: var(--spacing-sm);
}

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

.gap-lg {
    gap: var(--spacing-lg);
}

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

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

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

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

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

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

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

.p-lg {
    padding: var(--spacing-lg);
}

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

.text-sm {
    font-size: var(--font-size-sm);
}

.text-lg {
    font-size: var(--font-size-lg);
}

.text-muted {
    color: var(--text-secondary);
}

.text-error {
    color: var(--error-color);
}

.text-success {
    color: var(--success-color);
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.opacity-50 {
    opacity: 0.5;
}

.opacity-75 {
    opacity: 0.75;
}