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

/* Define our brand color palette */
:root {
    --primary: #4f46e5;       /* Indigo */
    --primary-hover: #4338ca;
    --bg-color: #f3f4f6;      /* Light gray background */
    --surface: #ffffff;       /* White cards/navbar */
    --text-main: #111827;     /* Dark slate for headings */
    --text-muted: #6b7280;    /* Lighter slate for paragraphs */
    --border: #e5e7eb;
    --radius: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* --- Navigation Bar --- */
header {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--primary);
}

/* --- Layout Containers --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 5%;
}

/* --- Hero Section (Landing Page) --- */
.hero {
    text-align: center;
    padding: 6rem 2rem;
    background: linear-gradient(to bottom, #ffffff, #f3f4f6);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem auto;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: var(--primary);
    color: white;
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

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

.btn-outline {
    background-color: transparent;
    color: var(--text-main);
    border: 1px solid var(--border);
}

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

/* --- Dashboard Grid & Cards --- */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.quiz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    transition: box-shadow 0.2s, transform 0.2s;
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* --- Admin Forms --- */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: border-color 0.2s;
}

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

/* --- Pricing Section --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.pricing-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
}

.pricing-card.pro {
    border: 2px solid var(--primary);
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.1);
}

.pricing-card.pro::before {
    content: 'Санал болгох';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: white;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.2rem 1rem;
    border-radius: 20px;
    text-transform: uppercase;
}

.pricing-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
    align-items: baseline;
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 0.2rem;
}

.pricing-features {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
    flex-grow: 1;
}

.pricing-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    color: var(--text-muted);
}

.pricing-features li::before {
    content: "✓";
    color: var(--primary);
    font-weight: bold;
    margin-right: 0.5rem;
    font-size: 1.2rem;
}

/* --- Quiz Interface --- */
.quiz-container {
    max-width: 800px;
    margin: 0 auto;
}

.question-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.question-text {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.options-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-label {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

.option-label:hover {
    background-color: #f8fafc;
    border-color: #cbd5e1;
}

.option-label input[type="radio"] {
    margin-right: 1rem;
    transform: scale(1.2);
}

.option-label.matching {
    flex-direction: row;
    justify-content: space-between;
    padding: 0.5rem 0;
    border: none;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
}

.option-label.matching:hover {
    background-color: transparent;
    border-color: var(--border);
}

.matching-select {
    width: 200px;
}