/* Microsoft AI Inspired UI Styles */
:root {
    --primary-color: #0078D4; /* Microsoft Blue */
    --primary-hover: #106EBE;
    --secondary-color: #2B2B2B;
    --bg-color: #F3F2F1;
    --card-bg: #FFFFFF;
    --text-primary: #201F1E;
    --text-secondary: #605E5C;
    --border-radius: 8px;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.12);
    --transition-speed: 0.3s;
}

body {
    background-color: var(--bg-color);
    /* Tech/AI inspired background with overlay */
    background-image: linear-gradient(rgba(243, 242, 241, 0.8), rgba(243, 242, 241, 0.9)), url('../images/bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    
    color: var(--text-primary);
    font-family: 'Segoe UI', 'SegoeUI', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 20px, 0);
    }
    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.container {
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Navbar */
.navbar {
    background-color: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
    box-shadow: none !important;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.navbar-brand {
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 1.25rem;
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    transition: color var(--transition-speed);
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed) cubic-bezier(0.16, 1, 0.3, 1);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-weight: 600;
    color: var(--text-primary);
    padding: 1.25rem;
    font-size: 1.1rem;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 4px; /* Slightly more square */
    font-weight: 600;
    padding: 0.5rem 1.25rem;
    transition: all 0.2s ease;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: scale(1.02);
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.5px;
}

/* Forms */
.form-control, .form-select {
    border: 1px solid #8A8886; /* Neutral gray */
    border-radius: 4px;
    padding: 0.6rem 0.8rem;
    transition: border-color 0.2s;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

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

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #C7C7C7;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #A0A0A0;
}

/* Login/Register specific */
.login-container, .register-container {
    margin-top: 5rem;
    animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Table styling */
.table {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: none;
}

.table thead th {
    background-color: #FAFAFA;
    border-bottom: 2px solid #EDEBE9;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

/* Badges */
.badge {
    font-weight: 600;
    padding: 0.4em 0.8em;
    border-radius: 4px;
}

/* Images */
img {
    transition: transform 0.3s ease;
}

/* Footer/Misc */
.text-muted {
    color: var(--text-secondary) !important;
}

/* Intro.js Custom Styles for Microsoft AI Theme */
.introjs-tooltip {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0,0,0,0.05);
    font-family: 'Segoe UI', sans-serif;
    padding: 15px;
    max-width: 400px;
}

.introjs-tooltip-title {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.introjs-tooltiptext {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.introjs-button {
    background-color: #f3f2f1;
    color: var(--text-primary);
    border: 1px solid transparent;
    border-radius: 4px;
    font-weight: 600;
    text-shadow: none;
    font-size: 12px;
    padding: 6px 12px;
    transition: all 0.2s ease;
}

.introjs-button:hover {
    background-color: #edebe9;
    color: var(--text-primary);
    border-color: transparent;
    transform: translateY(-1px);
}

.introjs-button:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

.introjs-nextbutton, .introjs-donebutton {
    background-color: var(--primary-color) !important;
    color: white !important;
    border: none !important;
}

.introjs-nextbutton:hover, .introjs-donebutton:hover {
    background-color: var(--primary-hover) !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.introjs-prevbutton {
    border: 1px solid #8A8886 !important;
    background-color: transparent !important;
    color: var(--text-primary) !important;
}

.introjs-skipbutton {
    color: var(--text-secondary) !important;
    font-weight: normal;
}

.introjs-helperLayer {
    background-color: rgba(255, 255, 255, 0.1);
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    box-shadow: 0 0 0 5000px rgba(0, 0, 0, 0.6); /* Darker overlay */
}

.introjs-bullets ul li a {
    background: #ccc;
}

.introjs-bullets ul li a.active {
    background: var(--primary-color);
}

.introjs-arrow.top { border-bottom-color: var(--card-bg); }
.introjs-arrow.bottom { border-top-color: var(--card-bg); }
.introjs-arrow.right { border-left-color: var(--card-bg); }
.introjs-arrow.left { border-right-color: var(--card-bg); }

/* Floating Help Button Style */
#startTourBtn {
    background-color: var(--primary-color) !important;
    border: none;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

#startTourBtn:hover {
    transform: scale(1.1) rotate(10deg);
    background-color: var(--primary-hover) !important;
    box-shadow: 0 12px 24px rgba(0,0,0,0.2) !important;
}

/* Custom Skip Button */
#skipTourBtn {
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0,0,0,0.1);
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

#skipTourBtn:hover {
    background-color: white;
    color: var(--primary-color);
    transform: translateY(2px);
    box-shadow: var(--shadow-md) !important;
}