/*
Theme Name: AI Word to PDF Converter
Theme URI: https://example.com/ai-word-to-pdf-converter
Author: AI Developer
Author URI: https://example.com
Description: ثيم احترافي متكامل لتحويل ملفات Word إلى PDF. يتضمن أداة تحويل فورية بتصميم عصري وجذاب، متجاوب مع جميع الأجهزة، مع دعم كامل للغة العربية (RTL). مثالي لمواقع الويب التي تقدم خدمات تحويل المستندات عبر الإنترنت.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ai-word-to-pdf-converter
Tags: one-column, two-columns, right-sidebar, custom-colors, editor-style, featured-images, footer-widgets, full-width-template, theme-options, threaded-comments, translation-ready, rtl-language-support, responsive, conversion-tool, document-tools
*/

/* CSS Variables */
:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #a5b4fc;
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --secondary-color: #0ea5e9;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-card: #ffffff;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #6b7280;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --font-primary: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-tertiary: #334155;
        --bg-card: #1e293b;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-tertiary: #94a3b8;
        --border-color: #334155;
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    }
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    direction: rtl;
    text-align: right;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

/* Layout */
.site-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

.site-content {
    flex: 1;
    padding: 3rem 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}

@media (max-width: 1024px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
}

/* Header */
.site-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 200;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.9);
}

@media (prefers-color-scheme: dark) {
    .site-header {
        background: rgba(30, 41, 59, 0.9);
    }
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.site-logo {
    width: 48px;
    height: 48px;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.site-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.site-title a {
    color: inherit;
    text-decoration: none;
}

.site-description {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: 2px;
}

/* Navigation */
.main-navigation {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.main-navigation ul {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.main-navigation a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.main-navigation a:hover,
.main-navigation a.current {
    background: var(--primary-color);
    color: white;
    text-decoration: none;
}

.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
}

/* Hero */
.hero-section {
    background: var(--primary-gradient);
    color: white;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.25rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 1024px) {
    .hero-buttons {
        justify-content: center;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    border-radius: var(--radius-xl);
    font-weight: 700;
    font-size: 1rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    white-space: nowrap;
    text-decoration: none;
    border: 2px solid transparent;
}

.btn-primary {
    background: white;
    color: var(--primary-dark);
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    text-decoration: none;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    text-decoration: none;
}

/* Converter */
.converter-section {
    padding: 3rem 0;
    background: var(--bg-secondary);
}

.converter-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.converter-header {
    text-align: center;
    margin-bottom: 2rem;
}

.converter-header h2 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.converter-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
}

/* Upload Area */
.upload-area {
    border: 3px dashed var(--border-color);
    border-radius: var(--radius-2xl);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--primary-color);
    background: var(--primary-light);
    transform: scale(1.01);
}

.upload-icon-wrapper {
    margin-bottom: 1.5rem;
}

.upload-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto;
    transition: all var(--transition-normal);
}

.upload-area:hover .upload-icon {
    transform: scale(1.1) translateY(-5px);
    background: var(--primary-color);
}

.upload-text h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.upload-text p {
    color: var(--text-tertiary);
    margin-bottom: 1rem;
}

.upload-text .file-types {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
    display: inline-block;
    padding: 0.25rem 1rem;
    border-radius: var(--radius-full);
}

/* File Info */
.file-info {
    display: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    align-items: center;
    gap: 1.5rem;
    border: 1px solid var(--border-color);
}

.file-info.active {
    display: flex;
}

.file-icon {
    width: 56px;
    height: 56px;
    background: var(--error-color);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.file-details {
    flex: 1;
}

.file-name {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.file-meta {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

.file-remove {
    width: 40px;
    height: 40px;
    background: #fee2e2;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ef4444;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-remove:hover {
    background: #ef4444;
    color: white;
}

/* Progress */
.progress-container {
    display: none;
    margin-bottom: 1.5rem;
}

.progress-container.active {
    display: block;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.progress-title {
    font-weight: 600;
    color: var(--text-primary);
}

.progress-percentage {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 1.125rem;
}

.progress-bar-wrapper {
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    width: 0%;
    transition: width var(--transition-normal);
}

/* Convert Button */
.btn-convert {
    width: 100%;
    padding: 1.25rem 2rem;
    background: var(--primary-gradient);
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.btn-convert:not(:disabled):hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-convert:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Download Area */
.download-area {
    display: none;
    background: linear-gradient(135deg, #d1fae5 0%, #d1fae5 100%);
    border: 2px solid #10b981;
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    margin-top: 1.5rem;
}

.download-area.active {
    display: block;
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.download-icon {
    width: 64px;
    height: 64px;
    background: #10b981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.download-area h3 {
    color: #065f46;
    margin-bottom: 0.5rem;
}

.download-area p {
    color: #047857;
    margin-bottom: 1.5rem;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    background: #10b981;
    color: white;
    font-weight: 700;
    font-size: 1.125rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.btn-download:hover {
    background: #059669;
    transform: translateY(-2px);
    text-decoration: none;
}

/* Features */
.features-section {
    padding: 3rem 0;
    background: var(--bg-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-light);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
    background: var(--primary-color);
    transform: scale(1.1);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Steps */
.steps-section {
    padding: 3rem 0;
    background: var(--bg-secondary);
}

.steps-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.steps-header {
    text-align: center;
    margin-bottom: 3rem;
}

.steps-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
}

.step-card {
    text-align: center;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-lg);
}

.step-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.step-card p {
    color: var(--text-secondary);
}

/* Blog */
.blog-section {
    padding: 3rem 0;
    background: var(--bg-primary);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.blog-card-image {
    width: 100%;
    height: 200px;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 1rem;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.blog-card-title a {
    color: var(--text-primary);
}

.blog-card-title a:hover {
    color: var(--primary-color);
}

.blog-card-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.read-more:hover {
    gap: 0.75rem;
}

/* Footer */
.site-footer {
    background: #111827;
    color: #9ca3af;
    padding: 3rem 0 1.5rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

.footer-brand .site-logo {
    margin-bottom: 1rem;
}

.footer-brand .site-title {
    color: white;
}

.footer-brand p {
    color: #9ca3af;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.footer-widget h4 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
}

.footer-widget ul li {
    margin-bottom: 0.5rem;
}

.footer-widget a {
    color: #9ca3af;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.footer-widget a:hover {
    color: white;
    padding-right: 0.5rem;
    text-decoration: none;
}

.footer-bottom {
    border-top: 1px solid #374151;
    margin-top: 2rem;
    padding-top: 1.5rem;
    text-align: center;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: #6b7280;
}

/* Sidebar */
.site-sidebar {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.widget {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.widget:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.widget-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
    display: inline-block;
}

.search-form {
    display: flex;
    gap: 0.5rem;
}

.search-form input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.search-form input:focus {
    border-color: var(--primary-color);
}

.search-form button {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-lg);
    font-weight: 600;
}

.recent-posts-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.recent-posts-list a {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.25rem;
}

.recent-posts-list .post-date {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* Page Header */
.page-header {
    background: var(--primary-gradient);
    color: white;
    padding: 3rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.page-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* Contact */
.contact-section {
    padding: 3rem 0;
    background: var(--bg-secondary);
}

.contact-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.contact-form {
    background: var(--bg-card);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--primary-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background: var(--primary-gradient);
    color: white;
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* Error Page */
.error-page {
    text-align: center;
    padding: 4rem 0;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.error-content {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.error-code {
    font-size: 10rem;
    font-weight: 900;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.error-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.error-message {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Toast */
.toast-container {
    position: fixed;
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: #111827;
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideInDown 0.3s ease-out;
}

.toast.success {
    background: #10b981;
}

.toast.error {
    background: #ef4444;
}

.toast.warning {
    background: #f59e0b;
}

@keyframes slideInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .main-navigation {
        display: none;
        width: 100%;
        flex-direction: column;
        background: var(--bg-card);
        border-radius: var(--radius-xl);
        padding: 1rem;
        box-shadow: var(--shadow-xl);
        margin-top: 1rem;
    }

    .main-navigation.active {
        display: flex;
    }

    .main-navigation ul {
        flex-direction: column;
        width: 100%;
    }

    .main-navigation a {
        width: 100%;
        justify-content: center;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .converter-card {
        padding: 1.5rem;
    }

    .upload-area {
        padding: 2rem 1rem;
    }

    .error-code {
        font-size: 6rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}