@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #0066FF;
    --primary-hover: #0052CC;
    --primary-light: rgba(0, 102, 255, 0.1);
    --bg-light: #F8FAFC;
    --bg-card-light: #FFFFFF;
    --text-light: #0F172A;
    --text-muted-light: #64748B;
    --border-light: #E2E8F0;
    
    --bg-dark: #090D16;
    --bg-card-dark: #131A26;
    --text-dark: #F1F5F9;
    --text-muted-dark: #94A3B8;
    --border-dark: #1E293B;
    
    /* Active values */
    --bg: var(--bg-light);
    --bg-card: var(--bg-card-light);
    --text: var(--text-light);
    --text-muted: var(--text-muted-light);
    --border: var(--border-light);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 10px 30px -10px rgba(0, 102, 255, 0.08);
    --shadow-hover: 0 20px 40px -15px rgba(0, 102, 255, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --bg: var(--bg-dark);
    --bg-card: var(--bg-card-dark);
    --text: var(--text-dark);
    --text-muted: var(--text-muted-dark);
    --border: var(--border-dark);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: var(--transition);
    overflow-x: hidden;
}

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

[data-theme="dark"] header {
    background: rgba(9, 13, 22, 0.7);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

.logo-blue {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.5rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

/* Mega Menu */
.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 900px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.nav-item:hover .mega-menu {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.mega-col h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: var(--primary);
}

.mega-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mega-col a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    transition: var(--transition);
}

.mega-col a:hover {
    color: var(--primary);
    padding-left: 5px;
}

/* Actions in Header */
.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    background: none;
    border: 1px solid var(--border);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    font-size: 1.2rem;
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    width: 30px;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 6rem 2rem;
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-left h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1.15;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text) 30%, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-left p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-ctas {
    display: flex;
    gap: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--radius);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 102, 255, 0.2);
}

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

.btn-secondary:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* 3D Rotating Icons Section */
.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    height: 350px;
}

.scene-3d {
    position: relative;
    width: 250px;
    height: 250px;
    perspective: 800px;
}

.floating-icon {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    animation: floatAround 10s infinite linear;
}

[data-theme="dark"] .floating-icon {
    background: rgba(19, 26, 38, 0.4);
    border-color: rgba(255, 255, 255, 0.05);
}

.floating-icon img, .floating-icon svg {
    width: 45px;
    height: 45px;
    animation: rotateSelf 6s infinite linear;
}

.icon-pdf {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.icon-jpg {
    bottom: 10%;
    right: 10%;
    animation-delay: -3.3s;
}

.icon-conv {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: floatAroundCentral 8s infinite ease-in-out;
}

@keyframes floatAround {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(180deg); }
    100% { transform: translateY(0px) rotate(360deg); }
}

@keyframes floatAroundCentral {
    0% { transform: translate(-50%, -50%) translateY(0) rotate(0deg); }
    50% { transform: translate(-50%, -50%) translateY(-25px) rotate(-180deg); }
    100% { transform: translate(-50%, -50%) translateY(0) rotate(-360deg); }
}

@keyframes rotateSelf {
    from { transform: rotate3d(1, 1, 1, 0deg); }
    to { transform: rotate3d(1, 1, 1, 360deg); }
}

/* Category Grid & Tool Cards */
.tools-section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    text-align: center;
}

.category-block {
    margin-bottom: 4rem;
}

.category-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

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

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-decoration: none;
    color: var(--text);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.tool-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--shadow-hover);
}

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

.tool-icon {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
}

.tool-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
}

.tool-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
}

/* Tool Interface styling */
.tool-page-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.tool-main {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3rem;
    box-shadow: var(--shadow);
}

.breadcrumb {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.breadcrumb a {
    text-decoration: none;
    color: var(--text-muted);
}

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

.breadcrumb-separator {
    color: var(--border);
}

.tool-h1 {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

.tool-tagline {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Tool workspace interface details */
.tool-workspace {
    margin-bottom: 3rem;
    background: rgba(0, 102, 255, 0.02);
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    text-align: center;
    position: relative;
    transition: var(--transition);
}

.tool-workspace.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    cursor: pointer;
}

.upload-area i {
    font-size: 3rem;
    color: var(--primary);
}

.file-input {
    display: none;
}

.preview-container {
    margin-top: 1.5rem;
    display: none;
    flex-direction: column;
    gap: 1.5rem;
}

.img-preview {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    margin: 0 auto;
}

.tool-control-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
    text-align: left;
}

.tool-control {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.tool-control label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.tool-control input, .tool-control select, .tool-control textarea {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
}

.tool-control input:focus, .tool-control select:focus, .tool-control textarea:focus {
    border-color: var(--primary);
    outline: none;
}

.tool-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Sidebar and SEO Articles */
.tool-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.sidebar-widget {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.widget-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 1.25rem;
    border-bottom: 2px solid var(--primary-light);
    padding-bottom: 0.5rem;
}

.related-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.related-list a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text);
    font-size: 0.9rem;
    transition: var(--transition);
}

.related-list a:hover {
    color: var(--primary);
    transform: translateX(5px);
}

/* Content blocks, features, benefits, FAQs */
.tool-seo-section {
    margin-top: 3rem;
    border-top: 1px solid var(--border);
    padding-top: 3rem;
}

.seo-h2 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-item {
    display: flex;
    gap: 1rem;
}

.feature-item i {
    color: var(--primary);
    font-size: 1.25rem;
}

.feature-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.feature-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.faqs {
    margin-top: 2rem;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 1.25rem 0;
}

.faq-question {
    font-family: var(--font-heading);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    margin-top: 0.75rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Footer styling */
footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    padding: 5rem 2rem 2rem;
    transition: var(--transition);
}

.footer-grid {
    max-width: 1280px;
    margin: 0 auto 3rem;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
    gap: 4rem;
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--text);
    margin-bottom: 1rem;
}

.footer-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    text-decoration: none;
    transition: var(--transition);
}

.social-icon:hover {
    color: #FFFFFF;
    transform: translateY(-3px);
}

.social-icon.facebook:hover { background: #1877F2; border-color: #1877F2; }
.social-icon.instagram:hover { background: #E4405F; border-color: #E4405F; }
.social-icon.twitter:hover { background: #1DA1F2; border-color: #1DA1F2; }
.social-icon.linkedin:hover { background: #0077B5; border-color: #0077B5; }

.footer-title {
    font-family: var(--font-heading);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    border-top: 1px solid var(--border);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Animations */
.fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.slide-in {
    animation: slideIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 4rem 1.5rem;
        gap: 3rem;
    }
    .hero-left h1 {
        font-size: 2.8rem;
    }
    .hero-left p {
        margin: 0 auto 2.5rem;
    }
    .hero-ctas {
        justify-content: center;
    }
    .tool-page-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }
    .hamburger {
        display: flex;
    }
    .nav-menu {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 72px);
        background: var(--bg-card);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        gap: 1.5rem;
        transition: var(--transition);
        overflow-y: auto;
        border-top: 1px solid var(--border);
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-item {
        width: 100%;
    }
    .nav-link {
        width: 100%;
        display: block;
    }
    .mega-menu {
        position: static;
        transform: none;
        width: 100%;
        opacity: 1;
        pointer-events: auto;
        display: none;
        grid-template-columns: 1fr;
        box-shadow: none;
        border: none;
        padding: 1rem 0;
    }
    .nav-item.active .mega-menu {
        display: grid;
    }
    .tools-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Contact Us Grid */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3.5rem;
    margin-top: 2rem;
    text-align: left;
}
@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}