/* NepalTools - Main Stylesheet */
:root {
    /* Light theme colors */
    --primary-color: #DC143C;
    --primary-dark: #B01030;
    --primary-light: #FF6B8B;
    --secondary-color: #2E8B57;
    --secondary-dark: #1F5C3A;
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-dark: #F1F3F4;
    --border-color: #E0E0E0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-color: #FF6B8B;
    --primary-dark: #DC143C;
    --primary-light: #FF8FA3;
    --secondary-color: #4CAF50;
    --secondary-dark: #2E8B57;
    --text-color: #F5F5F5;
    --text-light: #CCCCCC;
    --bg-color: #1A1A1A;
    --bg-light: #2D2D2D;
    --bg-dark: #252525;
    --border-color: #404040;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 1000;
    border-radius: var(--radius);
}

.skip-link:focus {
    top: 10px;
}

/* Focus styles for keyboard navigation */
:focus-visible {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

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

/* Header */
.header {
    background-color: var(--bg-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

/* Logo */
.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    gap: 10px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: var(--transition);
}

/* Navigation */
.nav-list {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: var(--radius);
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

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

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--bg-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    padding: 10px 0;
    min-width: 200px;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 10;
}

.nav-dropdown:hover .dropdown-menu,
.nav-dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-link {
    display: block;
    padding: 10px 20px;
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
}

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

/* Header controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Language selector */
.language-selector {
    position: relative;
}

.lang-btn {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 6px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--text-color);
    transition: var(--transition);
}

.lang-btn:hover {
    background: var(--bg-dark);
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-width: 120px;
    display: none;
    z-index: 10;
}

.language-selector:hover .language-dropdown {
    display: block;
}

.lang-option {
    display: block;
    width: 100%;
    padding: 8px 16px;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
}

.lang-option:hover {
    background: var(--bg-light);
}

/* Theme toggle */
.theme-toggle {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--bg-dark);
    transform: rotate(15deg);
}

/* Premium toggle */
.premium-toggle {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    border: none;
    border-radius: var(--radius);
    padding: 8px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #333;
    font-weight: 600;
    transition: var(--transition);
}

.premium-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Ad placeholders */
.ad-placeholder {
    background: var(--bg-light);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    margin: 20px 0;
    position: relative;
}

.ad-label {
    position: absolute;
    top: -10px;
    left: 10px;
    background: var(--bg-color);
    padding: 0 10px;
    font-size: 12px;
    color: var(--text-light);
}

.ad-slot {
    color: var(--text-light);
    font-size: 14px;
}

.ad-header {
    margin: 0;
    padding: 10px;
}

.ad-sticky-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0;
    border-radius: 0;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.ad-close {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-light);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.ad-close:hover {
    background: var(--bg-dark);
}

/* Main content */
.main-content {
    flex: 1;
    padding: 30px 0 60px;
}

/* Pages */
.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* Hero section */
.hero {
    text-align: center;
    padding: 40px 0;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 30px;
}

/* Tools grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin: 40px 0;
}

.tool-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

.tool-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    font-size: 24px;
}

.tool-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.tool-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    flex-grow: 1;
}

.tool-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-family: inherit;
}

.tool-cta:hover {
    background: var(--primary-dark);
    transform: translateX(5px);
}

/* Features */
.features {
    padding: 60px 0 30px;
}

.features h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2rem;
    color: var(--text-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

/* Page header */
.page-header {
    text-align: center;
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.page-header p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.warning-text {
    color: #FF9800;
    font-weight: 600;
    margin-top: 10px;
}

/* Tool container */
.tool-container {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow);
}

.tool-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.tool-tab {
    padding: 10px 20px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
}

.tool-tab:hover {
    background: var(--bg-dark);
}

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

/* Upload area */
.upload-area {
    border: 3px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 60px 20px;
    text-align: center;
    transition: var(--transition);
    margin-bottom: 30px;
    position: relative;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--primary-color);
    background: rgba(220, 20, 60, 0.05);
}

.upload-area i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.upload-area h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.upload-area input[type="file"] {
    display: none;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

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

.btn-success {
    background: var(--secondary-color);
    color: white;
}

.btn-success:hover {
    background: var(--secondary-dark);
}

/* Tool controls */
.tool-controls {
    background: var(--bg-color);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
}

.control-group {
    margin-bottom: 20px;
}

.control-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.control-group select,
.control-group input[type="text"],
.control-group input[type="number"],
.control-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-color);
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.control-group select:focus,
.control-group input:focus,
.control-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(220, 20, 60, 0.1);
}

/* File list */
.file-list {
    margin: 20px 0;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 15px;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
}

.file-item:last-child {
    border-bottom: none;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-icon {
    color: var(--primary-color);
}

.file-name {
    font-weight: 500;
}

.file-size {
    color: var(--text-light);
    font-size: 0.9rem;
}

.file-remove {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.file-remove:hover {
    background: var(--bg-dark);
    color: var(--primary-color);
}

/* Progress bar */
.progress-container {
    margin: 25px 0;
}

.progress-bar {
    height: 8px;
    background: var(--bg-dark);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    display: block;
    text-align: center;
    margin-top: 10px;
    font-weight: 500;
}

/* Result area */
.result-area {
    background: var(--bg-color);
    border: 2px solid var(--secondary-color);
    border-radius: var(--radius);
    padding: 25px;
    margin-top: 30px;
    text-align: center;
}

.result-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin: 20px 0;
    text-align: left;
}

.result-info p {
    margin-bottom: 5px;
}

/* Note */
.note {
    background: rgba(255, 193, 7, 0.1);
    border-left: 4px solid #FFC107;
    padding: 15px;
    margin-top: 20px;
    border-radius: 0 var(--radius) var(--radius) 0;
}

.note p {
    margin: 0;
    color: var(--text-color);
}

/* Action buttons */
.action-buttons {
    display: flex;
    gap: 15px;
    margin-top: 25px;
    flex-wrap: wrap;
}

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

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    color: white;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-color);
    color: var(--text-color);
    padding: 15px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 300px;
    animation: slideIn 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

.toast.success {
    border-left-color: var(--secondary-color);
}

.toast.error {
    border-left-color: #DC143C;
}

.toast.warning {
    border-left-color: #FF9800;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* About & Contact pages */
.about-content,
.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content h2,
.contact-content h2 {
    margin: 30px 0 15px;
    color: var(--primary-color);
}

.about-content ul {
    padding-left: 20px;
    margin-bottom: 20px;
}

.about-content li {
    margin-bottom: 10px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-form {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.contact-info {
    padding: 20px 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    padding: 40px 0 20px;
    margin-top: auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

.footer-section p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-color);
    border-radius: 50%;
    color: var(--text-color);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-light);
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Responsive design */
@media (max-width: 1024px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-color);
        box-shadow: var(--shadow);
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 99;
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .nav-dropdown .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--bg-light);
        margin-top: 10px;
        display: none;
    }
    
    .nav-dropdown.active .dropdown-menu {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1.1rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .tool-container {
        padding: 20px;
    }
    
    .tool-actions {
        justify-content: center;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}