@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Color Palette */
    --primary: #4f46e5;       /* Modern Indigo */
    --primary-hover: #4338ca;
    --primary-light: #e0e7ff;
    --secondary: #0ea5e9;     /* Ocean sky blue */
    --secondary-hover: #0284c7;
    
    /* Backgrounds */
    --bg-page: #f8fafc;
    --bg-card: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.85);
    
    /* Borders */
    --border: #e2e8f0;
    --border-glass: rgba(255, 255, 255, 0.4);
    --border-focus: #a5b4fc;
    
    /* Text */
    --text-main: #0f172a;     /* Deep slate */
    --text-muted: #64748b;    /* Light slate */
    --text-on-primary: #ffffff;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.08);
    
    /* Font */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Radii */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body, html {
    height: 100%;
    width: 100%;
    font-family: var(--font-sans);
    color: var(--text-main);
    background-color: var(--bg-page);
    overflow: hidden;
}

body.page-body {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    background: radial-gradient(circle at 50% 50%, #f1f5f9 0%, #e2e8f0 100%);
    overflow-y: auto;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: var(--radius-full);
    opacity: 0.6;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-main);
}

/* Generic Components */
.btn {
    width: 100%;
    padding: 0.75rem 1.5rem;
    color: var(--text-on-primary);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    min-height: 44px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    box-shadow: var(--shadow-sm);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

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

.btn-success {
    background: #10b981; /* Emerald green */
}
.btn-success:hover {
    background: #059669;
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-main);
    border-color: var(--border);
    margin-top: 10px;
}
.btn-secondary:hover {
    background: var(--border);
}

.hidden { display: none !important; }

/* Global Forms & Input Elements styling */
.form-group {
    margin-bottom: 1.25rem;
    width: 100%;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea,
input.admin-search {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    outline: none;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-main);
    background-color: var(--bg-page);
    transition: var(--transition);
    min-height: 42px;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus,
.form-group select:focus,
.form-group textarea:focus,
input.admin-search:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    background-color: var(--bg-card);
}