/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.7;
    color: #1a202c;
    background-color: #ffffff;
    font-size: 18px;
}

/* Brand Colors */
:root {
    --primary-color: deepskyblue;
    --accent-color: coral;
    --text-dark: #1a202c;
    --text-light: #4a5568;
    --bg-light: #f7fafc;
}

/* Navigation */
nav {
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-brand svg {
    width: 40px;
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none !important;
    align-items: center;
}

.nav-links::before,
.nav-links::after {
    display: none !important;
}

.nav-links li {
    list-style: none !important;
}

.nav-links li::before,
.nav-links li::after,
.nav-links li::marker {
    display: none !important;
    content: none !important;
}

.nav-links a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 1rem;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid #e2e8f0;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-container {
        position: relative;
    }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0095d4 100%) !important;
    color: white !important;
    padding: 5rem 1.5rem !important;
    text-align: center !important;
}

.hero-container {
    max-width: 900px !important;
    margin: 0 auto !important;
}

.hero h1 {
    font-size: 3rem !important;
    font-weight: 800 !important;
    margin-bottom: 1.5rem !important;
    line-height: 1.2 !important;
    color: white !important;
}

.hero p {
    font-size: 1.25rem !important;
    margin-bottom: 2rem !important;
    line-height: 1.6 !important;
    color: white !important;
    opacity: 0.95 !important;
}

@media (max-width: 768px) {
    .hero {
        padding: 3rem 1.5rem !important;
    }

    .hero h1 {
        font-size: 2rem !important;
    }

    .hero p {
        font-size: 1.1rem !important;
    }
}

/* Conversion Buttons */
.btn-conversion {
    display: inline-block;
    padding: 0.875rem 2rem !important;
    background-color: transparent !important;
    color: white !important;
    border: 2px solid white !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    font-size: 1.125rem !important;
    transition: all 0.3s !important;
    white-space: nowrap !important;
    border-radius: 0.375rem;
}

.btn-conversion:hover {
    background-color: white !important;
    color: var(--primary-color) !important;
}

/* Table of Contents */
.toc {
    background-color: var(--bg-light);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0.5rem;
}

.toc-list {
    list-style: none !important;
    padding-left: 0 !important;
}

.toc-list li {
    margin: 0.75rem 0;
    list-style: none !important;
}

.toc-list li::before,
.toc-list li::after,
.toc-list li::marker {
    display: none !important;
    content: none !important;
}

.toc-list a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.05rem;
    transition: color 0.3s;
}

.toc-list a:hover {
    color: var(--primary-color);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

/* Sections */
section {
    margin-bottom: 4rem;
}

/* Headings */
h1 {
    font-size: 2.5rem !important;
    font-weight: 800 !important;
    margin-bottom: 1.5rem !important;
    color: var(--text-dark) !important;
    line-height: 1.2 !important;
}

h2 {
    font-size: 2rem !important;
    font-weight: 700 !important;
    margin-top: 3rem !important;
    margin-bottom: 1.5rem !important;
    color: var(--text-dark) !important;
    line-height: 1.3 !important;
}

h3 {
    font-size: 1.5rem !important;
    font-weight: 600 !important;
    margin-top: 2rem !important;
    margin-bottom: 1rem !important;
    color: var(--text-dark) !important;
    line-height: 1.4 !important;
}

/* Paragraphs */
p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-light);
}

/* Lists */
ul, ol {
    margin: 1.5rem 0;
    padding-left: 0 !important;
    list-style: none !important;
}

ul li, ol li {
    margin: 1rem 0;
    padding-left: 2rem;
    position: relative;
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-light);
    list-style: none !important;
}

ul li::marker, ol li::marker {
    display: none !important;
}

ul li::before {
    content: "+" !important;
    position: absolute !important;
    left: 0 !important;
    color: var(--accent-color) !important;
    font-weight: 700 !important;
    font-size: 1.25rem !important;
}

ol li::before {
    content: "+" !important;
    position: absolute !important;
    left: 0 !important;
    color: var(--accent-color) !important;
    font-weight: 700 !important;
    font-size: 1.25rem !important;
}

/* Ensure nav and footer lists don't have markers */
nav ul,
nav ol,
nav li,
footer ul,
footer ol,
footer li {
    list-style: none !important;
    padding-left: 0 !important;
}

nav ul::before,
nav ul::after,
nav ol::before,
nav ol::after,
nav li::before,
nav li::after,
nav li::marker,
footer ul::before,
footer ul::after,
footer ol::before,
footer ol::after,
footer li::before,
footer li::after,
footer li::marker {
    display: none !important;
    content: none !important;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    min-width: 500px;
}

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

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 1.125rem;
}

td {
    padding: 1rem;
    border-bottom: 1px solid #e2e8f0;
    font-size: 1.125rem;
    color: var(--text-light);
}

tbody tr:hover {
    background-color: var(--bg-light);
}

/* Cards */
.card {
    background-color: white;
    border-radius: 0.5rem;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    border-left: 4px solid var(--primary-color);
}

.card h3 {
    margin-top: 0 !important;
    color: var(--primary-color) !important;
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
    display: block;
}

picture {
    display: block;
    margin: 2rem 0;
}

/* Footer */
footer {
    background-color: #2d3748;
    color: white;
    padding: 3rem 1.5rem 2rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white !important;
    font-size: 1.25rem !important;
    margin-bottom: 1rem !important;
    margin-top: 0 !important;
}

.footer-links {
    list-style: none !important;
    padding: 0 !important;
}

.footer-links li {
    margin: 0.75rem 0;
    padding-left: 0 !important;
    list-style: none !important;
}

.footer-links li::before,
.footer-links li::after,
.footer-links li::marker {
    display: none !important;
    content: none !important;
}

.footer-links a {
    color: #cbd5e0;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 1rem;
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #4a5568;
    color: #cbd5e0;
    font-size: 0.95rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 2rem 1rem;
    }

    h1 {
        font-size: 2rem !important;
    }

    h2 {
        font-size: 1.75rem !important;
    }

    h3 {
        font-size: 1.35rem !important;
    }

    p, ul li, ol li, td, th {
        font-size: 1.05rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Strong/Bold text */
strong {
    font-weight: 700;
    color: var(--text-dark);
}

/* Links */
a {
    color: var(--primary-color);
}

a:hover {
    color: #0095d4;
}

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