/* General Body & Typography */
body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f9fafb;
    color: #333;
    font-size: 16px; /* Base font size for mobile-first */
}

h1, h2, h3, h4 {
    font-family: 'Lato', sans-serif;
    color: #1a202c;
    font-weight: 700;
}

h1 {
    font-size: 2.5rem; /* 40px */
    margin-bottom: 0.5rem;
}

h2 {
    font-size: 2rem; /* 32px */
    margin-top: 2.5rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem; /* 24px */
    color: #2d3748;
}

p {
    margin-bottom: 1rem;
}

a {
    color: #3182ce;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #2b6cb0;
    text-decoration: underline;
}

/* Layout & Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    text-decoration: none;
}
.logo:hover { text-decoration: none; }

nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
}

nav ul li {
    margin-left: 25px;
}

nav ul li a {
    color: #4a5568;
    font-weight: 600;
    padding: 5px 0;
    border-bottom: 2px solid transparent;
}

nav ul li a:hover, nav ul li a.active {
    color: #3182ce;
    border-bottom-color: #3182ce;
    text-decoration: none;
}

/* Hero Section */
#hero {
    text-align: center;
    padding: 4rem 20px;
}

.subtitle {
    font-size: 1.15rem;
    color: #4a5568;
    max-width: 600px;
    margin: 1rem auto 2.5rem auto;
}

/* Generator Form Box */
.generator-box {
    background: #fff;
    padding: 2.5rem;
    border-radius: 8px;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    text-align: left;
    margin-bottom: 2.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #2d3748;
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #cbd5e0;
    border-radius: 4px;
    font-size: 1rem;
    font-family: 'Open Sans', sans-serif;
    box-sizing: border-box; /* Important for padding and width */
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: #3182ce;
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.3);
}

button {
    display: inline-block;
    width: 100%;
    padding: 1rem;
    background-color: #3182ce;
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #2b6cb0;
}

/* Result & Loader */
.hidden { display: none !important; }

#result-container {
    margin-top: 2rem;
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    border: 1px solid #e2e8f0;
}

.loader-container {
    text-align: center;
    padding: 2rem;
}

.loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid #3498db;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem auto;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.loader-container p { color: #4a5568; font-weight: 600; }

#apology-output {
    background-color: #f7fafc;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    padding: 1.5rem;
    min-height: 150px;
    line-height: 1.7;
    white-space: pre-wrap; /* Preserves formatting */
}

#copy-btn {
    width: auto;
    padding: 0.75rem 1.5rem;
    margin-top: 1.5rem;
    background-color: #2f855a;
}
#copy-btn:hover { background-color: #276749; }

/* SEO Content Section */
#content-seo { padding: 2rem 20px; }
.content-block { margin-bottom: 2.5rem; }
hr { border: 0; height: 1px; background-color: #e2e8f0; margin: 3rem 0; }
.faq-item { margin-bottom: 1.5rem; }
.faq-item h4 { margin-bottom: 0.5rem; }

/* Footer */
footer {
    background-color: #1a202c;
    color: #a0aec0;
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}
footer p { margin: 0.5rem 0; font-size: 0.9rem; }
footer a { color: #63b3ed; }

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    nav ul { display: none; } /* Simple mobile menu, can be enhanced with JS */
}