:root {
    --bg-color: #f8fafc;
    --bg-gradient: linear-gradient(135deg, #f0fdf4 0%, #e0f2fe 100%);
    --surface: rgba(255, 255, 255, 0.7);
    --surface-solid: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #10b981;
    --border: rgba(148, 163, 184, 0.2);
    --glass-border: rgba(255, 255, 255, 0.5);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    --radius: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
    --surface: rgba(30, 41, 59, 0.6);
    --surface-solid: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #60a5fa;
    --primary-hover: #3b82f6;
    --accent: #34d399;
    --border: rgba(248, 250, 252, 0.1);
    --glass-border: rgba(255, 255, 255, 0.05);
    --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body {
    background: var(--bg-color);
    background-image: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
    line-height: 1.6;
    transition: var(--transition);
}

/* Navbar styles */
.glass-panel {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    transition: var(--transition);
}


nav {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.nav-glass {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 100px;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    width: 100%;
    position: relative;
    /* Context for mobile absolute dropdown */
}

.logo {
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--text-main);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-main);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background: var(--border);
}

.hidden {
    display: none !important;
}

/* Navigation Links for PC */
.nav-links-pc {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-left: auto;
    margin-right: 1.5rem;
}

.nav-link {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--border);
}

/* Hamburger Toggle Button */
.hamburger-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 100;
}

.hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-main);
    border-radius: 2px;
    transition: var(--transition);
}

/* Animated hamburger menu toggled state */
.hamburger-toggle.active .hamburger-bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger-toggle.active .hamburger-bar:nth-child(2) {
    opacity: 0;
}

.hamburger-toggle.active .hamburger-bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Dropdown Menu */
.nav-links-mobile {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    width: 100%;
    background: var(--surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
    flex-direction: column;
    gap: 1rem;
    z-index: 99;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.nav-links-mobile.active {
    display: flex;
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.mobile-nav-link {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.05rem;
    padding: 0.75rem 1.5rem;
    width: 100%;
    text-align: center;
    border-radius: 12px;
    transition: var(--transition);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--primary);
    background: var(--border);
}

@media (max-width: 768px) {
    .nav-links-pc {
        display: none;
    }

    .hamburger-toggle {
        display: flex;
    }

    .theme-toggle {
        margin-left: auto;
        margin-right: 1rem;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }
}

/* header end here  */
/* Layout Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Hero / Tool Section */
.hero {
    text-align: center;
    margin-bottom: 2rem;
    padding-top: 2rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(to right, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.app-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

@media (min-width: 992px) {

    .app-grid {
        grid-template-columns: 350px 1fr;
    }
}

/* Tool Controls */
.controls-panel {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    color: var(--text-main);
}

.microcopy {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

textarea.main-input {
    width: 100%;
    padding: 1rem;
    border-radius: 12px;
    border: 2px solid var(--border);
    background: var(--surface-solid);
    color: var(--text-main);
    font-size: 1rem;
    resize: vertical;
    min-height: 100px;
    transition: var(--transition);
}

textarea.main-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Chips */
.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.chip {
    padding: 0.5rem 1rem;
    border-radius: 100px;
    border: 1px solid var(--border);
    background: var(--surface-solid);
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.chip:hover {
    border-color: var(--primary);
    color: var(--text-main);
}

.chip.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Toggles */
.toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.toggle-row:last-child {
    border-bottom: none;
}

.toggle-label {
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
}

/* Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    transition: .4s;
    border-radius: 34px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--primary);
}

input:checked+.slider:before {
    transform: translateX(20px);
}

/* Output Panel */
.output-panel {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.stats {
    display: flex;
    gap: 1rem;
}

.stat-item {
    background: var(--surface-solid);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.stat-item span {
    color: var(--text-main);
    font-size: 1rem;
}

.output-textarea {
    flex-grow: 1;
    width: 100%;
    min-height: 400px;
    padding: 1.5rem;
    border-radius: 12px;
    border: 2px solid var(--border);
    background: var(--surface-solid);
    color: var(--text-main);
    font-size: 1rem;
    font-family: monospace;
    resize: none;
    transition: var(--transition);
}

.output-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* Buttons */
.btn-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.btn {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--surface-solid);
    color: var(--text-main);
    border: 2px solid var(--border);
}

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

/* Live Indicator */
.live-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
}

.pulse {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* History Section */
.history-section {
    margin-top: 1rem;
    margin-bottom: 4rem;
}

.history-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.history-list {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    scrollbar-width: thin;
}

.history-card {
    min-width: 200px;
    padding: 1rem;
    border-radius: 12px;
    background: var(--surface-solid);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.history-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.history-card-text {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
}

.history-card-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Content Sections */
.content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 4rem;
}

@media (min-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.info-card {
    padding: 2.5rem;
    height: 100%;
}

.info-card h2 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.info-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.info-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-card li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    color: var(--text-muted);
}

.icon-box {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: bold;
}

/* SEO Article Section */
.article-section {
    max-width: 800px;
    margin: 0 auto 4rem;
}

.article-section h2 {
    font-size: 2rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.article-section h3 {
    font-size: 1.4rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-section p {
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
}

.article-section blockquote {
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-main);
    background: rgba(59, 130, 246, 0.05);
    padding: 1rem;
    border-radius: 0 8px 8px 0;
}

/* FAQ */
.faq-section {
    max-width: 800px;
    margin: 0 auto 4rem;
}

.faq-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: 12px;
    overflow: hidden;
    background: var(--surface-solid);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.25rem 1.5rem;
    background: none;
    border: none;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    transition: transform 0.3s ease;
    color: var(--primary);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer-inner {
    padding: 0 1.5rem 1.25rem;
    color: var(--text-muted);
}

/* Footer */
footer {
    background: var(--surface-solid);
    border-top: 1px solid var(--border);
    padding: 4rem 1.5rem 2rem;
    text-align: center;
}

.footer-logo {
    font-weight: 800;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.footer-desc {
    color: var(--text-muted);
    max-width: 400px;
    margin: 0 auto 2rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.footer-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
}

.copyright {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

/* Utility */
.hidden {
    display: none !important;
}

/* Backlinks Marquee Animation */
.backlinks-container {
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 30px 0;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
}

.marquee-track {
    display: flex;
    width: max-content;
}

.marquee-track.left {
    animation: scroll-left 30s linear infinite;
}

.marquee-track.right {
    animation: scroll-right 30s linear infinite;
}

/* Pause on hover */
.backlinks-container:hover .marquee-track {
    animation-play-state: paused;
}

.marquee-content {
    display: flex;
    gap: 30px;
    padding-right: 30px;
    align-items: center;
}

.marquee-content a {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}

.marquee-content a:hover {
    transform: scale(1.05);
}

.marquee-content img {
    border-radius: 8px;
    object-fit: contain;
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

@keyframes scroll-right {
    0% {
        transform: translateX(-50%);
    }

    100% {
        transform: translateX(0);
    }
}

@media (max-width: 768px) {

    .marquee-track.left,
    .marquee-track.right {
        animation-duration: 20s;
    }

    .marquee-content img {
        height: 40px;
        width: auto;
    }

    .backlinks-container {
        gap: 15px;
    }
}