@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #4338ca;
    --background: #f8fafc;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text: #0f172a;
    --text-secondary: #64748b;
    --error: #ef4444;
    --success: #10b981;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.5;
}

.custom-navbar {
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid var(--border);
}

.custom-sidebar {
    background-color: var(--surface);
    border-right: 1px solid var(--border);
}

.message-list {
    background-color: var(--surface);
}

.message-view {
    background-color: var(--surface);
}

.priority-high {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.priority-medium {
    background-color: rgba(234, 179, 8, 0.1);
    color: #d97706;
}

.priority-low {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.new-message {
    background-color: rgba(79, 70, 229, 0.05);
}

.nav-item.active {
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--primary);
    border-right: 3px solid var(--primary);
}

.compose-button {
    background-color: var(--primary);
}

.compose-button:hover {
    background-color: var(--primary-dark);
}

.reply-button {
    background-color: var(--primary);
}

.reply-button:hover {
    background-color: var(--primary-dark);
}

.search-input:focus {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    border-color: var(--primary);
}
/* Modern scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* Smooth transitions */
* {
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

/* Modern shadows */
.custom-navbar {
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.message-list, .message-view {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

/* Modern rounded corners */
.custom-navbar, .custom-sidebar, .message-list, .message-view {
    border-radius: 0.5rem;
    margin: 0.5rem;
}

/* Modern input styles */
.search-input {
    border-radius: 0.375rem;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Modern button styles */
button {
    border-radius: 0.375rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
}

/* Modern card styles */
.message-item {
    border-radius: 0.375rem;
    margin: 0.25rem;
    padding: 1rem;
}

/* Modern typography */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.25;
}

/* Subtle animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-item {
    animation: fadeIn 0.3s ease-out forwards;
}