/* --- CSS RESET & VARIABLES --- */
:root {
    /* Color Palette - Premium HSL Light Mode (Default) */
    --bg-body: hsl(210, 20%, 98%);
    --bg-navbar: hsla(0, 0%, 100%, 0.8);
    --bg-dark-light: hsl(0, 0%, 100%);
    --bg-card: hsl(0, 0%, 100%);
    --bg-card-hover: hsl(210, 20%, 96%);
    --border-color: hsl(210, 14%, 90%);
    
    --text-primary: hsl(222, 47%, 15%);
    --text-secondary: hsl(215, 20%, 35%);
    --text-muted: hsl(215, 16%, 50%);
    
    --accent-color: hsl(210, 100%, 50%);
    --accent-gradient: linear-gradient(135deg, hsl(210, 100%, 50%) 0%, hsl(260, 100%, 60%) 100%);
    --accent-hover: hsl(210, 100%, 58%);
    
    --telegram-color: hsl(203, 92%, 45%);
    --telegram-gradient: linear-gradient(135deg, hsl(203, 92%, 45%) 0%, hsl(203, 100%, 35%) 100%);
    --danger-color: hsl(354, 70%, 54%);
    --success-color: hsl(145, 63%, 45%);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.05);
    --shadow-strong: 0 16px 40px rgba(0, 0, 0, 0.1);
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --backdrop-blur: blur(12px);
    --border-radius-lg: 16px;
    --border-radius-md: 10px;
    --border-radius-sm: 6px;

    --bg-gradient-circle-1: hsla(210, 100%, 90%, 0.4);
    --bg-gradient-circle-2: hsla(260, 100%, 90%, 0.3);
}

body.dark-theme {
    /* Color Palette - Premium HSL Dark Mode (When Toggle Pressed) */
    --bg-body: hsl(222, 47%, 11%);
    --bg-navbar: hsla(222, 47%, 11%, 0.8);
    --bg-dark-light: hsl(223, 47%, 15%);
    --bg-card: hsla(223, 47%, 20%, 0.4);
    --bg-card-hover: hsla(223, 47%, 25%, 0.6);
    --border-color: hsla(223, 47%, 30%, 0.3);
    
    --text-primary: hsl(210, 40%, 98%);
    --text-secondary: hsl(215, 20%, 75%);
    --text-muted: hsl(215, 16%, 55%);
    
    --accent-color: hsl(210, 100%, 55%);
    --accent-gradient: linear-gradient(135deg, hsl(210, 100%, 55%) 0%, hsl(260, 100%, 65%) 100%);
    --accent-hover: hsl(210, 100%, 65%);
    
    --telegram-color: hsl(203, 92%, 50%);
    --telegram-gradient: linear-gradient(135deg, hsl(203, 92%, 50%) 0%, hsl(203, 100%, 40%) 100%);
    --danger-color: hsl(354, 70%, 54%);
    --success-color: hsl(145, 63%, 49%);
    
    --shadow-soft: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-strong: 0 16px 48px 0 rgba(0, 0, 0, 0.5);

    --bg-gradient-circle-1: hsla(242, 60%, 15%, 0.4);
    --bg-gradient-circle-2: hsla(260, 60%, 15%, 0.3);
}

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

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 10% 20%, var(--bg-gradient-circle-1) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, var(--bg-gradient-circle-2) 0%, transparent 50%);
    background-attachment: fixed;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- SCROLLBAR --- */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-body);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-card);
    border-radius: var(--border-radius-sm);
    border: 2px solid var(--bg-body);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--border-color);
}

/* --- HEADER & NAVIGATION --- */
.header {
    background: var(--bg-navbar);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition-smooth);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo-icon {
    font-size: 1.7rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-accent {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: var(--transition-smooth);
    padding: 0.4rem 0.8rem;
    border-radius: var(--border-radius-sm);
}

.nav-item:hover, .nav-item.active {
    color: var(--text-primary);
    background: var(--bg-card);
}

.telegram-btn {
    background: var(--telegram-gradient);
    color: #fff !important;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px rgba(3, 169, 244, 0.3);
}

.telegram-btn:hover {
    background: var(--telegram-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(3, 169, 244, 0.4);
}

/* --- HERO SECTION --- */
.hero-section {
    max-width: 900px;
    margin: 4rem auto 2.5rem auto;
    text-align: center;
    padding: 0 2rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: hsla(210, 100%, 55%, 0.15);
    color: var(--accent-color);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 1.5rem;
    border: 1px solid hsla(210, 100%, 55%, 0.25);
    animation: pulse 2s infinite;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1px;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 2rem auto;
    font-weight: 400;
}

/* --- SEARCH & FILTERS --- */
.search-filter-container {
    max-width: 600px;
    margin: 0 auto;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.1rem;
}

.search-box input {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1rem 1rem 1rem 3rem;
    border-radius: var(--border-radius-lg);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    outline: none;
    transition: var(--transition-smooth);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--shadow-soft);
}

.search-box input:focus {
    border-color: var(--accent-color);
    background: var(--bg-dark-light);
    box-shadow: 0 0 0 3px hsla(210, 100%, 55%, 0.25);
}

/* --- CATEGORY SECTION --- */
.category-section {
    max-width: 1200px;
    margin: 0 auto 3rem auto;
    padding: 0 2rem;
    display: flex;
    justify-content: center;
}

.tabs-container {
    background: var(--bg-dark-light);
    padding: 0.4rem;
    border-radius: 50px;
    border: 1px solid var(--border-color);
    display: inline-flex;
    gap: 0.2rem;
}

.tab-btn {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

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

.tab-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 12px hsla(210, 100%, 55%, 0.35);
}

/* --- NEWSPAPER GRID & CARDS --- */
.grid-section {
    max-width: 1200px;
    margin: 0 auto 5rem auto;
    padding: 0 2rem;
}

.newspaper-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.newspaper-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    transition: var(--transition-smooth);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.newspaper-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: var(--transition-smooth);
}

.newspaper-card:hover {
    transform: translateY(-5px);
    background: var(--bg-card-hover);
    border-color: hsla(210, 100%, 55%, 0.3);
    box-shadow: var(--shadow-strong);
}

.newspaper-card:hover::before {
    opacity: 1;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.25rem;
}

.card-lang-badge {
    background: hsla(223, 47%, 30%, 0.5);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.25rem 0.6rem;
    border-radius: var(--border-radius-sm);
    letter-spacing: 0.5px;
}

.card-lang-badge.english {
    background: hsla(210, 100%, 55%, 0.15);
    color: hsl(210, 100%, 65%);
}

.card-lang-badge.hindi {
    background: hsla(32, 100%, 50%, 0.15);
    color: hsl(32, 100%, 60%);
}

.card-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.25px;
}

.card-meta {
    color: var(--text-muted);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 1.5rem;
}

.card-meta i {
    color: var(--accent-color);
}

.card-btn {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    background: hsla(223, 47%, 30%, 0.3);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.8rem;
    border-radius: var(--border-radius-md);
    transition: var(--transition-smooth);
}

.card-btn:hover {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 15px hsla(210, 100%, 55%, 0.3);
}

/* --- ABOUT SECTION ON HOME --- */
.about-section-home {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 3rem 2rem;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
}

.about-card h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 2.5rem;
    letter-spacing: -0.5px;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

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

.about-icon {
    font-size: 2.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.about-item h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.about-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* --- BREADCRUMBS --- */
.breadcrumbs {
    max-width: 1200px;
    margin: 2rem auto 1rem auto;
    padding: 0 2rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.breadcrumbs a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.breadcrumbs a:hover {
    color: var(--accent-color);
}

.breadcrumbs .active {
    color: var(--text-primary);
}

/* --- DEDICATED NEWSPAPER LAYOUT --- */
.paper-container {
    max-width: 1200px;
    margin: 0 auto 5rem auto;
    padding: 0 2rem;
}

.paper-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.75px;
    margin-bottom: 2rem;
}

.paper-layout {
    display: grid;
    grid-template-columns: 8fr 3fr;
    gap: 2rem;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    margin-bottom: 2rem;
}

/* --- DYNAMIC DOWNLOAD BOX --- */
.download-box {
    border: 1px solid hsla(145, 63%, 49%, 0.3);
    background: hsla(145, 63%, 49%, 0.05);
}

.download-header {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.download-icon-main {
    font-size: 2.5rem;
    color: var(--success-color);
}

.download-header h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.update-time {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.15rem;
}

.download-action {
    display: flex;
    justify-content: center;
}

.btn-download-premium {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    background: linear-gradient(135deg, hsl(145, 63%, 49%) 0%, hsl(160, 60%, 40%) 100%);
    color: #fff;
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    text-decoration: none;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
    transition: var(--transition-smooth);
}

.btn-download-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.45);
}

.btn-download-no-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: hsla(0, 0%, 50%, 0.15);
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius-lg);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: not-allowed;
}

/* --- ARCHIVE SECTION --- */
.history-box h2, .seo-article h2, .faq-box h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.history-intro {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.archive-lists {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.month-archive h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.8rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3rem;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.8rem;
}

.archive-link-btn {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 0.8rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.archive-link-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--accent-color);
}

.archive-link-btn i {
    color: var(--success-color);
    transition: var(--transition-smooth);
}

.archive-link-btn:hover i {
    transform: translateX(2px);
}

/* --- SEO CONTENT ARTICLES --- */
.seo-article p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 2rem;
    text-align: justify;
}

.seo-article p:last-child {
    margin-bottom: 0;
}

/* --- FAQ ACCORDION --- */
.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-header {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
}

.faq-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.faq-icon-arrow {
    transition: var(--transition-smooth);
    color: var(--text-secondary);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1.5rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.faq-content p {
    padding-bottom: 1.25rem;
}

/* Active FAQ Item */
.faq-item.active {
    border-color: var(--accent-color);
}

.faq-item.active .faq-icon-arrow {
    transform: rotate(180deg);
    color: var(--accent-color);
}

.faq-item.active .faq-content {
    max-height: 200px;
}

/* --- DISCLAIMER BOX --- */
.disclaimer-box {
    border: 1px solid hsla(354, 70%, 54%, 0.3);
    background: hsla(354, 70%, 54%, 0.05);
}

.disclaimer-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
}

.disclaimer-icon {
    color: var(--danger-color);
    font-size: 1.3rem;
}

.disclaimer-header h3 {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.disclaimer-box p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* --- SIDEBAR --- */
.paper-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
}

.telegram-sidebar-card {
    border-color: hsla(203, 92%, 50%, 0.3);
    background: hsla(203, 92%, 50%, 0.05);
    text-align: center;
}

.telegram-sidebar-icon {
    font-size: 3rem;
    color: var(--telegram-color);
    margin-bottom: 0.8rem;
}

.telegram-sidebar-card h3 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.telegram-sidebar-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.sidebar-btn-tg {
    display: block;
    width: 100%;
    background: var(--telegram-gradient);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.75rem;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 12px rgba(3, 169, 244, 0.2);
    transition: var(--transition-smooth);
}

.sidebar-btn-tg:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(3, 169, 244, 0.35);
}

.link-sidebar-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.sidebar-links-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.sidebar-links-list a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.sidebar-links-list a:hover {
    color: var(--accent-color);
    transform: translateX(4px);
}

.sidebar-links-list a::before {
    content: '\f105';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--text-muted);
}

/* --- FOOTER --- */
.footer {
    background: hsl(223, 47%, 7%);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-nav {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 1rem 0 1.5rem 0;
}

.footer-nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.footer-nav-link:hover {
    color: var(--accent-color);
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #ffffff; /* Always white text since footer background is always dark */
    text-decoration: none;
}

.footer-disclaimer {
    color: var(--text-muted);
    font-size: 0.8rem;
    max-width: 800px;
    margin: 0 auto 1.5rem auto;
    line-height: 1.5;
}

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid hsla(223, 47%, 20%, 0.5);
    padding-top: 1.5rem;
}

/* --- KEYFRAMES --- */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 hsla(210, 100%, 55%, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px hsla(210, 100%, 55%, 0);
    }
    100% {
        box-shadow: 0 0 0 0 hsla(210, 100%, 55%, 0);
    }
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 992px) {
    .paper-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-subtitle {
        font-size: 1rem;
    }
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    .nav-links {
        width: 100%;
        justify-content: center;
    }
    .about-card {
        padding: 2rem 1rem;
    }
    .paper-title {
        font-size: 1.8rem;
    }
}

/* --- THEME TOGGLE BUTTON --- */
.theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    margin-left: 1rem;
}

.theme-toggle-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* --- ADVERTISEMENT BLOCKS --- */
.ad-slot {
    margin: 2rem auto;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-md);
    text-align: center;
    max-width: 728px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 90px;
    box-shadow: var(--shadow-soft);
}

.ad-slot-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 0.4rem;
    font-weight: 700;
}

.ad-slot-content {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.sidebar-ad-slot {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: var(--border-radius-md);
    text-align: center;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
}

/* --- COUNTDOWN TIMER OVERLAY --- */
.timer-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.timer-card {
    background: var(--bg-dark-light);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    max-width: 420px;
    width: 90%;
    box-shadow: var(--shadow-strong);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.timer-modal.active .timer-card {
    transform: scale(1);
}

.timer-circle-container {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-circle-svg {
    width: 100px;
    height: 100px;
    transform: rotate(-90deg);
}

.timer-circle-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 8;
}

.timer-circle-progress {
    fill: none;
    stroke: var(--success-color);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 283;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 0.1s linear;
}

.timer-count {
    position: absolute;
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

.timer-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timer-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.timer-btn-cancel {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.6rem 1.8rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-body);
}

.timer-btn-cancel:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
    color: #fff;
}

/* --- BACK TO TOP BUTTON --- */
.back-to-top {
    position: fixed;
    bottom: 2.5rem;
    right: 2.5rem;
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-smooth);
    z-index: 99;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px hsla(210, 100%, 55%, 0.4);
}