/* PDF Merger Pro - Styles */

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Dark Mode Scrollbar */
.dark ::-webkit-scrollbar-track {
    background: #1e293b;
}

.dark ::-webkit-scrollbar-thumb {
    background: #475569;
}

.dark ::-webkit-scrollbar-thumb:hover {
    background: #64748b;
}

/* Drop Zone Styles */
.drop-zone {
    transition: all 0.3s ease;
    background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' rx='16' ry='16' stroke='%23CBD5E1FF' stroke-width='3' stroke-dasharray='12%2c 12' stroke-dashoffset='0' stroke-linecap='square'/%3e%3c/svg%3e");
}

.drop-zone.active {
    background-color: #f0f9ff;
    background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' rx='16' ry='16' stroke='%233B82F6FF' stroke-width='3' stroke-dasharray='12%2c 12' stroke-dashoffset='0' stroke-linecap='square'/%3e%3c/svg%3e");
    transform: scale(1.02);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Dark Mode Drop Zone */
.dark .drop-zone {
    background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' rx='16' ry='16' stroke='%23475569FF' stroke-width='3' stroke-dasharray='12%2c 12' stroke-dashoffset='0' stroke-linecap='square'/%3e%3c/svg%3e");
}

.dark .drop-zone.active {
    background-color: #1e3a5f;
    background-image: url("data:image/svg+xml,%3csvg width='100%25' height='100%25' xmlns='http://www.w3.org/2000/svg'%3e%3crect width='100%25' height='100%25' fill='none' rx='16' ry='16' stroke='%233B82F6FF' stroke-width='3' stroke-dasharray='12%2c 12' stroke-dashoffset='0' stroke-linecap='square'/%3e%3c/svg%3e");
}

/* Theme Toggle Button */
.theme-toggle {
    position: relative;
    width: 44px;
    height: 24px;
    background: #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    transition: background 0.3s;
    border: none;
    padding: 0;
}

.theme-toggle:hover {
    background: #cbd5e1;
}

.dark .theme-toggle {
    background: #475569;
}

.dark .theme-toggle:hover {
    background: #64748b;
}

.theme-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.dark .theme-toggle::after {
    transform: translateX(20px);
}

/* Fade/Slide Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in { animation: fadeIn 0.3s ease-out; }

@keyframes slideIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}
@keyframes slideOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
}
.animate-slide-in { animation: slideIn 0.3s ease-out; }
.animate-slide-out { animation: slideOut 0.3s ease-in forwards; }

/* Toast Styles */
.toast { border-left: 4px solid #3b82f6; }
.toast.toast-success { border-left-color: #22c55e; }
.toast.toast-error { border-left-color: #ef4444; }

.toast-success .toast-icon { color: #22c55e; }
.toast-error .toast-icon { color: #ef4444; }
.toast-info .toast-icon { color: #3b82f6; }

/* Input focus states for dark mode */
.dark input:focus, .dark select:focus {
    border-color: #3b82f6;
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* Shimmer effect for processing */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}
.shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}
.dark .shimmer {
    background: linear-gradient(90deg, #334155 25%, #475569 50%, #334155 75%);
    background-size: 200% 100%;
}

/* Keyboard shortcut styling */
kbd { font-size: 11px; }

/* Preview Modal */
.preview-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    backdrop-filter: blur(4px);
}
.preview-modal.active { opacity: 1; visibility: visible; }
.preview-content {
    background: white;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}
.preview-modal.active .preview-content { transform: scale(1); }
.dark .preview-content { background: #1e293b; }

/* Privacy Banner - Highlighted */
.privacy-banner {
    position: relative;
    overflow: hidden;
}

.privacy-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(34, 197, 94, 0.1) 50%,
        transparent 70%
    );
    animation: privacyShine 3s ease-in-out infinite;
}

@keyframes privacyShine {
    0%, 100% { transform: translateX(-100%) rotate(0deg); }
    50% { transform: translateX(100%) rotate(0deg); }
}

@keyframes privacyPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.privacy-pulse {
    animation: privacyPulse 2s ease-in-out infinite;
}