/*
Theme Name: FreeImage.gr Theme
Theme URI: https://freeimage.gr
Description: Δωρεάν online εργαλεία επεξεργασίας εικόνας - Free online image tools
Version: 1.0.0
Author: FreeImage.gr
Author URI: https://freeimage.gr
Text Domain: freeimage
Domain Path: /languages
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Requires at least: 5.0
Tested up to: 6.4
Requires PHP: 7.4
*/

/* ============================================
   CSS Variables
============================================ */
:root {
    --color-primary: #10b981;
    --color-primary-dark: #059669;
    --color-primary-light: #34d399;
    --color-secondary: #6366f1;
    --color-accent: #f59e0b;
    --color-success: #22c55e;
    --color-warning: #eab308;
    --color-error: #ef4444;
    --color-dark: #1e293b;
    --color-gray: #64748b;
    --color-light: #f1f5f9;
    --color-white: #ffffff;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --shadow-sm: 0 1px 2px 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);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.3s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.section {
    padding: 60px 0;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: var(--color-dark);
}

/* ============================================
   Header
============================================ */
.site-header {
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #e2e8f0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
    gap: 20px;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
}

.site-logo img,
.site-logo svg {
    width: 40px;
    height: 40px;
}

.site-logo span {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.main-nav ul {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.main-nav a {
    color: var(--color-gray);
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-primary);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 5px;
}

.lang-switcher a {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    background: var(--color-light);
    color: var(--color-gray);
}

.lang-switcher a.active {
    background: var(--color-primary);
    color: var(--color-white);
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-dark);
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-white);
        padding: 20px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 15px;
    }
}

/* ============================================
   Hero Section
============================================ */
.hero {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 50%, #a7f3d0 100%);
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-dark);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto 30px;
}

@media (max-width: 768px) {
    .hero {
        padding: 50px 0;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
}

/* ============================================
   Tools Grid
============================================ */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    padding: 20px 0;
}

.tool-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid #e2e8f0;
    text-align: center;
}

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

.tool-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--color-white);
}

.tool-icon svg {
    width: 30px;
    height: 30px;
}

.tool-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 10px;
}

.tool-card p {
    font-size: 0.9rem;
    color: var(--color-gray);
    margin-bottom: 20px;
}

.tool-card .btn {
    width: 100%;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

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

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

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

/* ============================================
   Upload Area
============================================ */
.upload-area {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: var(--shadow-lg);
    max-width: 800px;
    margin: 0 auto;
}

.drop-zone {
    border: 3px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--color-light);
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--color-primary);
    background: #ecfdf5;
}

.drop-zone-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.drop-zone h3 {
    font-size: 1.3rem;
    color: var(--color-dark);
    margin-bottom: 10px;
}

.drop-zone p {
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* File List */
.file-list {
    margin-top: 20px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--color-light);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
}

.file-item-preview {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    background: #ddd;
}

.file-item-info {
    flex: 1;
}

.file-item-name {
    font-weight: 600;
    color: var(--color-dark);
    word-break: break-all;
}

.file-item-size {
    font-size: 0.85rem;
    color: var(--color-gray);
}

.file-item-remove {
    background: none;
    border: none;
    color: var(--color-error);
    cursor: pointer;
    padding: 5px;
    font-size: 1.2rem;
}

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

.feature-item {
    text-align: center;
    padding: 30px;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #ecfdf5, #d1fae5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--color-primary);
}

.feature-icon svg {
    width: 32px;
    height: 32px;
}

.feature-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-dark);
}

.feature-item p {
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* ============================================
   Footer
============================================ */
.site-footer {
    background: var(--color-dark);
    color: #94a3b8;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .site-logo {
    margin-bottom: 15px;
}

.footer-brand .site-logo span {
    color: var(--color-white);
    -webkit-text-fill-color: var(--color-white);
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-column h4 {
    color: var(--color-white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: #94a3b8;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 30px;
    text-align: center;
    font-size: 0.9rem;
}

/* ============================================
   Tool Page Specific
============================================ */
.tool-hero {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    padding: 50px 0;
    text-align: center;
}

.tool-hero h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 10px;
}

.tool-hero p {
    color: var(--color-gray);
    font-size: 1.1rem;
}

/* Progress Bar */
.progress-wrapper {
    margin: 30px 0;
}

.progress-bar {
    background: #e2e8f0;
    border-radius: 10px;
    height: 12px;
    overflow: hidden;
}

.progress-fill {
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 10px;
}

.progress-text {
    text-align: center;
    margin-top: 10px;
    color: var(--color-gray);
    font-size: 0.95rem;
}

/* Download Result */
.download-result {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #dcfce7 0%, #f0fdf4 100%);
    border-radius: var(--radius-lg);
    margin-top: 30px;
}

.download-result h3 {
    color: #166534;
    margin-bottom: 15px;
}

/* ============================================
   FAQ Section
============================================ */
.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: 15px;
    box-shadow: var(--shadow-sm);
    border: 1px solid #e2e8f0;
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    padding: 0 20px 20px;
    color: var(--color-gray);
}

/* ============================================
   Utilities
============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mt-4 { margin-top: 40px; }

.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.mb-4 { margin-bottom: 40px; }

.hidden { display: none; }
.visible { display: block; }

/* ============================================
   Responsive
============================================ */
@media (max-width: 992px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 40px 0;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .upload-area {
        padding: 25px;
    }
    
    .drop-zone {
        padding: 40px 20px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand {
        max-width: 100%;
    }
}

/* ============================================
   Print Styles
============================================ */
@media print {
    .site-header,
    .site-footer,
    .upload-area,
    .btn {
        display: none;
    }
}