:root {
    --navy-dark: #0A1628;
    --navy-light: #1A2638;
    --blue-accent: #2E75B6;
    --blue-hover: #438ED5;
    --white: #FFFFFF;
    --text-muted: #A0B2C6;
    --green: #4CAF50;
    --amber: #FFC107;
    --blue: #2196F3;
    --red: #F44336;
    --orange: #FF9800;
    --bg-dark: #050d1a;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--white);
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5 {
    font-weight: 600;
    color: var(--white);
}

a {
    color: var(--blue-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--blue-hover);
}

/* Navbar */
.navbar {
    background-color: var(--navy-dark);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--navy-light);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--blue-accent);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--white);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Cards */
.card {
    background-color: var(--navy-dark);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--navy-light);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--blue-accent);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

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

.btn-danger {
    background-color: var(--red);
}
.btn-danger:hover { background-color: #d32f2f; }

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--blue-accent);
    color: var(--blue-accent);
}
.btn-outline:hover {
    background-color: var(--blue-accent);
    color: var(--white);
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

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

.form-control {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--navy-light);
    border: 1px solid #2a3a52;
    color: var(--white);
    border-radius: 4px;
}

.form-control:focus {
    outline: none;
    border-color: var(--blue-accent);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--navy-light);
}

th {
    color: var(--text-muted);
    font-weight: 600;
    background-color: var(--navy-dark);
}

/* Match Colors */
.match-exact { background-color: rgba(76, 175, 80, 0.2); border-left: 4px solid var(--green); }
.match-tolerance { background-color: rgba(33, 150, 243, 0.2); border-left: 4px solid var(--blue); }
.match-partial { background-color: rgba(255, 152, 0, 0.2); border-left: 4px solid var(--orange); }
.match-none { background-color: rgba(244, 67, 54, 0.2); border-left: 4px solid var(--red); }
.match-amber { background-color: rgba(255, 193, 7, 0.2); border-left: 4px solid var(--amber); }

/* Utilities */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 1rem; }

/* Toast */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}
.toast {
    background-color: var(--navy-dark);
    color: var(--white);
    padding: 1rem;
    border-radius: 4px;
    margin-top: 0.5rem;
    border-left: 4px solid var(--blue-accent);
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    opacity: 0;
    transition: opacity 0.3s;
}
.toast.show {
    opacity: 1;
}

/* Loading Spinner */
.spinner {
    border: 4px solid rgba(255,255,255,0.1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border-left-color: var(--blue-accent);
    animation: spin 1s linear infinite;
    display: inline-block;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }