/* Base Styles for QuantiCoral Website */
/* Color palette */
:root {
    --color-primary: #4CAFef;
    /* bright blue */
    --color-accent: #FFD93D;
    /* bright yellow */
    --color-bg: #F9FAFB;
    /* light gray white */
    --color-text: #333333;
    /* dark gray */
}

/* Smooth anchor scrolling */
html {
    scroll-behavior: smooth;
}

/* CSS Reset (minimal) */
* {
    box-sizing: border-box;
}

html,
body {
    padding: 0;
    margin: 0;
}

body {
    font-family: 'Open Sans', 'Roboto', system-ui, -apple-system, Segoe UI, Helvetica, Arial, sans-serif;
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Poppins', 'Montserrat', ui-sans-serif, system-ui, -apple-system, Segoe UI, Helvetica, Arial, sans-serif;
    margin: 0 0 0.5rem 0;
    line-height: 1.25;
    color: #111;
}

p {
    margin: 0 0 1rem 0;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Layout */
.container {
    max-width: 1120px;
    padding: 0 20px;
    margin: 0 auto;
}

/* Header / Nav */
header {
    background: #ffffffcc;
    backdrop-filter: saturate(1.2) blur(6px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    color: #111;
}

.logo-mark {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--color-primary), #7fd4ff);
    position: relative;
}

.logo-mark::after {
    content: '';
    position: absolute;
    inset: 6px;
    border-radius: 3px;
    background: #fff8;
}

.nav-links {
    display: flex;
    gap: 18px;
}

.nav-links a {
    color: #222;
    padding: 8px 10px;
    border-radius: 8px;
}

.nav-links a.active,
.nav-links a:hover {
    background: rgba(76, 175, 239, 0.12);
}

/* Hero */
.hero {
    padding: 80px 0 60px;
    background: linear-gradient(180deg, rgba(76, 175, 239, 0.08), rgba(76, 175, 239, 0));
}

.hero .headline {
    font-size: 40px;
}

.hero .subtext {
    font-size: 18px;
    color: #444;
}

.cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--color-primary);
    color: white;
    padding: 12px 18px;
    border-radius: 10px;
    font-weight: 600;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    box-shadow: 0 6px 18px rgba(76, 175, 239, 0.35);
}

.cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(76, 175, 239, 0.45);
    text-decoration: none;
}

/* Sections */
section {
    padding: 48px 0;
}

.section-title {
    font-size: 26px;
    margin-bottom: 18px;
}

/* Subtle section separators */
section+section {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

/* Two-column layout */
.two-col {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 28px;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.feature {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    padding: 16px;
}

.feature h3 {
    font-size: 18px;
    margin-bottom: 6px;
}

.feature p {
    color: #555;
}

/* Testimonials */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.quote {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    padding: 16px;
}

.quote p {
    color: #444;
}

.quote .author {
    margin-top: 8px;
    color: #666;
    font-size: 14px;
}

/* FAQ */
.faq {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
}

.faq-item+.faq-item {
    border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.faq-q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 16px;
    cursor: pointer;
}

.faq-a {
    padding: 0 16px 14px;
    display: none;
    color: #444;
}

.faq-item.open .faq-a {
    display: block;
}

/* Newsletter */
.newsletter {
    background: linear-gradient(180deg, rgba(76, 175, 239, 0.08), rgba(76, 175, 239, 0));
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 14px;
    padding: 20px;
}

.newsletter form {
    display: flex;
    gap: 10px;
}

.newsletter input[type="email"] {
    flex: 1;
    height: 40px;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 0 12px;
}

.newsletter button {
    height: 40px;
}

/* Back to top */
.back-to-top {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 999;
    display: none;
    opacity: 0.95;
}

.back-to-top.show {
    display: inline-flex;
}

/* Responsive */
@media (max-width: 900px) {
    .two-col {
        grid-template-columns: 1fr;
    }
}

/* Cards Grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 18px;
}

.card {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 14px;
    overflow: hidden;
    transition: transform .15s ease, box-shadow .15s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
}

.card-body {
    padding: 12px 14px 16px;
}

.badge {
    display: inline-block;
    background: var(--color-accent);
    color: #2a2a2a;
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 999px;
    margin-bottom: 8px;
}

/* Footer */
footer {
    padding: 24px 0 40px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    color: #555;
    background: #fff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 18px;
    align-items: center;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: #f3f4f6;
    color: #222;
}

.social-links a:hover {
    background: rgba(76, 175, 239, 0.12);
}

/* Utility */
.muted {
    color: #666;
}

.spacer-sm {
    height: 12px;
}

.spacer-md {
    height: 24px;
}

.spacer-lg {
    height: 40px;
}

/* Privacy content */
.privacy-container {
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 14px;
    padding: 20px;
}