/* ============================================
   YourCoding Free Tools - Landing Page Styles
   ============================================ */

/* CSS Variables */
:root {
    /* YourCoding Brand Colors */
    --primary: #1e88a8;
    --primary-dark: #156e8a;
    --primary-light: #2ba3c7;
    --accent: #17a2b8;
    
    /* Light Theme */
    --bg: #ffffff;
    --bg-elevated: #ffffff;
    --bg-secondary: #f8f9fa;
    --text: #2c3e50;
    --text-muted: #6c757d;
    --border: #e9ecef;
    --shadow: rgba(0, 0, 0, 0.1);
    
    /* UI Colors */
    --success: #28a745;
    --error: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    
    /* Spacing & Sizing */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
[data-theme="dark"] {
    --bg: #0f1419;
    --bg-elevated: #1a1f26;
    --bg-secondary: #151a21;
    --text: #e8eaed;
    --text-muted: #9ca3af;
    --border: #2d3748;
    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.header {
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: var(--transition);
}

.logo-link:hover {
    opacity: 0.8;
    transform: translateY(-2px);
}

.logo {
    height: 40px;
    width: auto;
}

/* Logo switching for theme */
[data-theme="light"] .logo-dark {
    display: none;
}

[data-theme="light"] .logo-light {
    display: block;
}

[data-theme="dark"] .logo-light {
    display: none;
}

[data-theme="dark"] .logo-dark {
    display: block;
}

.header-controls {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.lang-switch,
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    color: var(--text);
    font-family: inherit;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-switch:hover,
.theme-toggle:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.theme-toggle {
    padding: 0.5rem;
    width: 40px;
    height: 40px;
}

.sun-icon,
.moon-icon {
    transition: var(--transition);
}

[data-theme="light"] .moon-icon {
    display: none;
}

[data-theme="dark"] .sun-icon {
    display: none;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    animation: fadeIn 0.6s ease;
}

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

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

h1 {
    font-family: 'Poppins', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: slideUp 0.6s ease;
}

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

.subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 1.5rem;
    animation: slideUp 0.6s ease 0.1s both;
}

.badge-group {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: slideUp 0.6s ease 0.2s both;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary);
    white-space: nowrap;
}

.badge svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

/* Tools Section */
.tools-section {
    margin-bottom: 4rem;
}

.tools-section h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

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

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

.tool-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.qr-icon {
    background: linear-gradient(135deg, rgba(30, 136, 168, 0.1), rgba(23, 162, 184, 0.1));
    color: var(--primary);
}

.password-icon {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1), rgba(23, 162, 184, 0.1));
    color: var(--success);
}

.tool-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text);
}

.tool-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    flex: 1;
}

.tool-features {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.feature-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50px;
    color: var(--text-muted);
    font-weight: 500;
}

.tool-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 0.5rem;
}

.tool-card:hover .tool-cta {
    gap: 1rem;
}

.tool-cta svg {
    transition: var(--transition);
}

.tool-card:hover .tool-cta svg {
    transform: translateX(4px);
}

/* Coming Soon Section */
.coming-soon-section {
    margin-bottom: 3rem;
}

.coming-soon-section h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text);
}

.coming-soon-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.coming-soon-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.coming-soon-card {
    background: var(--bg-secondary);
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.coming-soon-card:hover {
    border-color: var(--primary);
    background: var(--bg-elevated);
}

.coming-soon-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    opacity: 0.5;
}

.coming-soon-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* Privacy Notice */
.privacy-notice {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(30, 136, 168, 0.1) 0%, rgba(23, 162, 184, 0.05) 100%);
    border: 1px solid rgba(30, 136, 168, 0.2);
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
}

.privacy-notice svg {
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.privacy-notice strong {
    display: block;
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.privacy-notice p {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    border-top: 1px solid var(--border);
    margin-top: 3rem;
}

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

.footer a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }
    
    .hero {
        margin-bottom: 2rem;
        padding: 1rem 0;
    }
    
    h1 {
        font-size: 1.875rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .coming-soon-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .tools-section h2,
    .coming-soon-section h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.75rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 0.9rem;
    }
    
    .badge-group {
        gap: 0.5rem;
    }
    
    .badge {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    .tool-card {
        padding: 1.5rem;
    }
    
    .tool-icon {
        width: 64px;
        height: 64px;
    }
    
    .tool-card h3 {
        font-size: 1.25rem;
    }
    
    .coming-soon-grid {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Floating Donation Button */
.floating-donation {
    position: fixed;
    right: 2rem;
    bottom: 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 50px;
    border: none;
    box-shadow: 0 4px 20px rgba(30, 136, 168, 0.4);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    font-family: inherit;
    z-index: 999;
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
    cursor: pointer;
}

.floating-donation:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 6px 30px rgba(30, 136, 168, 0.5);
}

.floating-donation svg {
    width: 24px;
    height: 24px;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 2rem;
    animation: fadeIn 0.3s ease;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 500px;
    width: 100%;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.3s ease;
    text-align: center;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text);
}

.modal-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

.modal-content h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.modal-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modal-features {
    list-style: none;
    text-align: left;
    margin: 1.5rem 0;
    padding: 0;
}

.modal-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    color: var(--text);
}

.modal-features li svg {
    color: var(--success);
    flex-shrink: 0;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.modal-actions .btn {
    flex: 1;
}

.btn {
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(30, 136, 168, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30, 136, 168, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    background: var(--bg);
}
/* Back Button */
.back-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    margin-bottom: 1.5rem;
    width: fit-content;
}

.back-button:hover {
    border-color: var(--primary);
    background: var(--bg);
    transform: translateX(-4px);
}

.back-button svg {
    transition: var(--transition);
}

.back-button:hover svg {
    transform: translateX(-4px);
}

#backToTools {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Other Tools Section */
.other-tools-section {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border);
}

.other-tools-section h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--text);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

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

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

.tool-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.qr-icon {
    background: linear-gradient(135deg, rgba(30, 136, 168, 0.1), rgba(23, 162, 184, 0.1));
    color: var(--primary);
}

.password-icon {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1), rgba(23, 162, 184, 0.1));
    color: var(--success);
}

.tool-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.tool-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
    flex: 1;
}

.tool-features {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.feature-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 50px;
    color: var(--text-muted);
    font-weight: 500;
}

.tool-cta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary);
    margin-top: 0.5rem;
}

.tool-card:hover .tool-cta svg {
    transform: translateX(4px);
}
.image-icon {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1), rgba(255, 152, 0, 0.1));
    color: var(--warning);
}
/* Logo: witte overlay in dark mode (logo-breed is donker) */
[data-theme="dark"] .logo { filter: brightness(0) invert(1); }