/* Design System and Core Styling for Farsi Autumn Writings Platform */

/* CSS Reset & Variables */
:root {
    --color-bg: hsl(24, 25%, 7%);
    --color-bg-rgb: 18, 15, 13;
    --color-bg-panel: hsla(24, 20%, 11%, 0.75);
    --color-bg-panel-solid: hsl(24, 20%, 11%);
    --color-primary: hsl(24, 75%, 50%); /* Autumn Orange */
    --color-primary-rgb: 224, 110, 31;
    --color-secondary: hsl(8, 65%, 45%); /* Crimson Leaf */
    --color-accent: hsl(38, 80%, 48%); /* Golden Amber */
    --color-text: hsl(30, 25%, 88%);
    --color-text-muted: hsl(30, 12%, 62%);
    --color-border: hsla(24, 20%, 25%, 0.4);
    --color-border-focus: hsla(24, 75%, 50%, 0.6);
    --color-shadow: rgba(0, 0, 0, 0.55);
    --font-body: 'Vazirmatn', sans-serif;
    --font-heading: 'Lalezar', cursive;
    --font-poem: 'Amiri', serif;
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Background Canvas */
#leaves-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-text);
    font-weight: normal;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Glassmorphism Panel Base */
.glass-panel {
    background: var(--color-bg-panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    box-shadow: 0 8px 32px var(--color-shadow);
}

/* App Shell */
#app {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header Styles */
.app-header {
    background: hsla(24, 25%, 6%, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo-area {
    display: flex;
    flex-direction: column;
}

.logo-title {
    font-family: var(--font-heading);
    font-size: 1.95rem;
    line-height: 1.2;
    background: linear-gradient(135deg, var(--color-text) 30%, var(--color-primary) 70%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(var(--color-primary-rgb), 0.25);
}

.logo-subtitle {
    font-size: 0.78rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.app-nav {
    display: flex;
    gap: 8px;
}

.nav-btn {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 10px 18px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-normal);
}

.nav-btn:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.04);
}

.nav-btn.active {
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.12);
    border: 1px solid rgba(var(--color-primary-rgb), 0.25);
}

.nav-icon {
    transition: transform var(--transition-fast);
}

.nav-btn:hover .nav-icon {
    transform: translateY(-2px);
}

.action-circle-btn {
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 1.2rem;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.action-circle-btn:hover {
    background: var(--color-primary);
    transform: scale(1.08) rotate(15deg);
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.4);
}

/* Layout Grid */
.main-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 32px;
    padding-top: 40px;
    padding-bottom: 60px;
    flex: 1;
}

/* Sidebar Panel */
.sidebar-panel {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.sidebar-card {
    background: var(--color-bg-panel);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 20px;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--color-accent);
    border-right: 3px solid var(--color-primary);
    padding-right: 8px;
}

/* Search Box */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box input {
    width: 100%;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 10px 12px 10px 38px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    transition: all var(--transition-normal);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.2);
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

/* Tags List */
.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-btn {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: 6px 14px;
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: 0.82rem;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.tag-btn:hover {
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--color-text-muted);
}

.tag-btn.active {
    color: var(--color-text);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.35);
}

/* Content Panel & Tabs */
.content-panel {
    min-width: 0;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Writings List Grid */
.writings-grid {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.loading-spinner {
    text-align: center;
    padding: 40px;
    font-size: 1.1rem;
    color: var(--color-text-muted);
    animation: pulse 1.8s infinite;
}

/* Writing Card */
.writing-card {
    background: var(--color-bg-panel);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 32px;
    transition: all var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.writing-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
    opacity: 0.75;
    transition: opacity var(--transition-fast);
}

.writing-card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--color-primary-rgb), 0.3);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.writing-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    gap: 16px;
}

.writing-title-area {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.writing-title {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    line-height: 1.3;
    color: var(--color-text);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.writing-meta {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    display: flex;
    gap: 12px;
    align-items: center;
}

.writing-type-badge {
    background: rgba(255, 255, 255, 0.05);
    padding: 3px 10px;
    border-radius: 4px;
    font-weight: 500;
    font-size: 0.75rem;
}

.writing-card-actions {
    display: flex;
    gap: 8px;
}

.action-icon-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.action-icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text);
    border-color: var(--color-text-muted);
    transform: scale(1.05);
}

.action-icon-btn.share-trigger:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.2);
}

.action-icon-btn.edit-trigger:hover {
    color: #3b82f6;
    border-color: #3b82f6;
}

.action-icon-btn.delete-trigger:hover {
    color: #ef4444;
    border-color: #ef4444;
}

/* Writing Body Contexts */
.writing-body {
    margin-bottom: 24px;
    color: var(--color-text);
    position: relative;
}

/* Classical Poem Style */
.classical-poem {
    max-width: 580px;
    margin: 20px auto;
}

.couplet-row {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-bottom: 14px;
    position: relative;
}

.hemistich {
    flex: 1;
    text-align: center;
    font-family: var(--font-poem);
    font-size: 1.35rem;
    line-height: 2.1;
    color: var(--color-text);
    letter-spacing: 0.2px;
    padding: 0 10px;
}

/* Modern Verse Style */
.modern-verse {
    text-align: center;
    max-width: 500px;
    margin: 15px auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modern-line {
    font-family: var(--font-body);
    font-size: 1.15rem;
    line-height: 2.3;
    font-weight: 300;
}

/* Prose Style */
.prose-text {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 2;
    text-align: justify;
    text-justify: inter-word;
    white-space: pre-wrap;
    max-width: 750px;
    margin: 0 auto;
}

.prose-text::first-letter {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-left: 4px;
}

.writing-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
    margin-top: 12px;
}

.writing-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.writing-tag-item {
    font-size: 0.78rem;
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.08);
    padding: 2px 10px;
    border-radius: 12px;
    border: 1px solid rgba(var(--color-primary-rgb), 0.15);
}

/* Read More Option */
.read-more-btn {
    background: transparent;
    border: none;
    color: var(--color-accent);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: color var(--transition-fast);
}

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

/* About Section CSS */
.about-card {
    padding: 40px;
    text-align: center;
    max-width: 680px;
    margin: 0 auto;
}

.about-avatar {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: float 4s ease-in-out infinite;
}

.about-name {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    margin-bottom: 16px;
    color: var(--color-primary);
}

.about-bio {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--color-text);
    margin-bottom: 30px;
    text-align: justify;
    text-justify: inter-word;
}

.about-details {
    border-top: 1px solid var(--color-border);
    padding-top: 20px;
    display: flex;
    justify-content: center;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
}

/* Modal Overlay & Box */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 8, 7, 0.78);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-box {
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 28px;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-box {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.modal-header h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-accent);
}

.close-modal-btn {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: 2rem;
    cursor: pointer;
    line-height: 0.5;
    transition: color var(--transition-fast);
}

.close-modal-btn:hover {
    color: var(--color-secondary);
}

/* Share Option Grid */
.share-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 30px;
}

.share-btn {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 12px;
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all var(--transition-normal);
}

.share-btn:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.07);
}

.share-btn.whatsapp:hover {
    border-color: #25d366;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.2);
}

.share-btn.telegram:hover {
    border-color: #0088cc;
    box-shadow: 0 4px 15px rgba(0, 136, 204, 0.2);
}

.share-btn.twitter:hover {
    border-color: var(--color-text);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.share-btn.copy-link:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.2);
}

/* Card Generator Panel */
.card-generator-section {
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
}

.card-generator-section h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--color-accent);
}

.helper-text {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.style-selector {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.style-selector label {
    font-size: 0.88rem;
    color: var(--color-text);
}

.background-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.bg-option {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-family: var(--font-body);
    font-size: 0.8rem;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.bg-option:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
}

.bg-option.active {
    color: var(--color-text);
    background: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.35);
}

.card-preview-container {
    width: 100%;
    aspect-ratio: 9/16; /* Instagram Story aspect ratio */
    max-width: 320px;
    margin: 0 auto 20px auto;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    position: relative;
    background: var(--color-bg-dark);
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
}

.card-preview-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.preview-overlay-spinner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(var(--color-bg-rgb), 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    padding: 20px;
    text-align: center;
    transition: opacity var(--transition-fast);
}

.download-card-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    padding: 14px;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.download-card-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.45);
    filter: brightness(1.1);
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    bottom: 24px;
    left: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 1000;
}

.toast {
    background: rgba(20, 16, 14, 0.92);
    border-right: 4px solid var(--color-primary);
    border-left: 1px solid var(--color-border);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding: 14px 20px;
    border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    color: var(--color-text);
    font-size: 0.9rem;
    min-width: 250px;
    max-width: 400px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    transform: translateX(-50px);
    opacity: 0;
    animation: toast-in 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.toast.removing {
    animation: toast-out 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Admin Dashboard CSS */
.admin-card {
    background: var(--color-bg-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 32px;
    max-width: 700px;
    margin: 0 auto;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.admin-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-primary);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-accent);
}

.form-group input,
.form-group select,
.form-group textarea {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 12px;
    color: var(--color-text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 8px rgba(var(--color-primary-rgb), 0.2);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text);
    border: none;
    border-radius: var(--border-radius-sm);
    padding: 12px 24px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.25);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.35);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    border-radius: var(--border-radius-sm);
    padding: 12px 24px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
    background: rgba(255,255,255,0.03);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    border-top: 1px solid var(--color-border);
    padding-top: 20px;
    margin-top: 10px;
}

.admin-login-box {
    max-width: 400px;
    margin: 40px auto;
    text-align: center;
}

.admin-login-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.admin-login-subtitle {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

/* Writings Management Table/List */
.writings-manager-list {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.manager-item {
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: background var(--transition-fast);
}

.manager-item:hover {
    background: rgba(0, 0, 0, 0.25);
}

.manager-item-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.manager-item-title {
    font-weight: 600;
    font-size: 0.98rem;
}

.manager-item-meta {
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.manager-item-actions {
    display: flex;
    gap: 6px;
}

/* Footer Section styling */
.app-footer {
    border-top: 1px solid var(--color-border);
    padding: 24px 20px;
    text-align: center;
    background: hsla(24, 25%, 5%, 0.95);
    color: var(--color-text-muted);
    font-size: 0.82rem;
    margin-top: auto;
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

@keyframes toast-in {
    to { transform: translateX(0); opacity: 1; }
}

@keyframes toast-out {
    to { transform: translateY(20px); opacity: 0; }
}

.animate-fade-in {
    animation: fadeIn var(--transition-slow) forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Grid / Media Queries */
@media (max-width: 900px) {
    .main-layout {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-top: 20px;
    }
    
    .sidebar-panel {
        order: 2; /* Move filters below content on mobile */
    }
    
    .content-panel {
        order: 1;
    }
}

@media (max-width: 600px) {
    .header-container {
        flex-direction: column;
        align-items: stretch;
        gap: 16px;
    }

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

    .app-nav {
        justify-content: center;
    }

    .header-actions {
        display: flex;
        justify-content: center;
    }

    .writing-card {
        padding: 20px;
    }

    .writing-title {
        font-size: 1.45rem;
    }

    .couplet-row {
        flex-direction: column;
        gap: 4px;
        text-align: center;
        margin-bottom: 12px;
    }

    .hemistich {
        font-size: 1.15rem;
        padding: 0;
    }
    
    .hemistich:last-child {
        padding-bottom: 8px;
        border-bottom: 1px dashed var(--color-border);
    }
    
    .couplet-row:last-child .hemistich:last-child {
        border-bottom: none;
    }

    .share-options {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}