@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

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

:root {
    --color-olive: #808000;
    --color-olive-dark: #5c5c00;
    --color-olive-light: #9d9d00;
    --color-coral: #FF7F50;
    --color-coral-dark: #e56941;
    --color-coral-light: #ff9977;
    --color-bg-light: #fafafa;
    --color-bg-white: #ffffff;
    --color-text-dark: #1a1a1a;
    --color-text-gray: #4a4a4a;
    --color-border: #e0e0e0;
}

body {
    font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-text-dark);
    background-color: var(--color-bg-light);
}

/* Navigation Styles */
.nav-menu {
    background-color: var(--color-olive);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.nav-logo {
    width: 40px;
    height: 40px;
}

.nav-brand-name {
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
}

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

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

.nav-links li {
    list-style: none !important;
    margin-bottom: 0 !important;
}

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

.nav-links a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: #ffffff;
    font-size: 24px;
    cursor: pointer;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-olive);
        flex-direction: column;
        gap: 0;
        padding: 1rem 0;
        display: none;
    }

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

    .nav-links li {
        padding: 0.75rem 1.5rem;
    }

    .nav-toggle {
        display: block;
    }
}

/* Hero Section */
.hero-section {
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    position: relative !important;
    padding: 8rem 1.5rem !important;
    margin-bottom: 3rem !important;
}

.hero-section::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: linear-gradient(135deg, rgba(128, 128, 0, 0.92) 0%, rgba(92, 92, 0, 0.85) 100%) !important;
}

.hero-content {
    position: relative !important;
    z-index: 1 !important;
    max-width: 1200px !important;
    margin: 0 auto !important;
}

.hero-title {
    font-size: 48px !important;
    font-weight: 700 !important;
    color: #ffffff !important;
    margin-bottom: 1.5rem !important;
    line-height: 1.2 !important;
}

.hero-description {
    font-size: 20px !important;
    color: #ffffff !important;
    margin-bottom: 2rem !important;
    max-width: 800px !important;
    line-height: 1.6 !important;
}

.hero-button {
    display: inline-block !important;
    background-color: var(--color-coral) !important;
    color: #ffffff !important;
    padding: 1rem 2.5rem !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    font-size: 18px !important;
    border-radius: 4px !important;
    transition: background-color 0.3s ease !important;
    white-space: nowrap !important;
}

.hero-button:hover {
    background-color: var(--color-coral-dark) !important;
}

@media (max-width: 768px) {
    .hero-section {
        padding: 4rem 1.5rem !important;
    }

    .hero-title {
        font-size: 32px !important;
    }

    .hero-description {
        font-size: 18px !important;
    }
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem 3rem;
}

/* Table of Contents */
.toc-section {
    background-color: var(--color-bg-white);
    border: 2px solid var(--color-olive);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 3rem;
}

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

.toc-list li {
    margin-bottom: 0.75rem;
    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(--color-olive);
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Sections */
.content-section {
    background-color: var(--color-bg-white);
    border-radius: 8px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700 !important;
    color: var(--color-olive) !important;
    margin-bottom: 1.5rem !important;
}

h2 {
    font-size: 36px !important;
    margin-top: 0 !important;
    padding-bottom: 0.75rem !important;
    border-bottom: 3px solid var(--color-coral) !important;
}

h3 {
    font-size: 26px !important;
    margin-top: 2rem !important;
    color: var(--color-text-dark) !important;
}

p {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 1.25rem;
    color: var(--color-text-gray);
}

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

ul li, ol li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-text-gray);
    list-style: none !important;
}

ul li::before {
    content: '' !important;
    position: absolute !important;
    left: 0 !important;
    top: 0.5rem !important;
    width: 0 !important;
    height: 0 !important;
    border-top: 6px solid transparent !important;
    border-bottom: 6px solid transparent !important;
    border-left: 10px solid var(--color-coral) !important;
}

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

ol {
    counter-reset: custom-counter;
}

ol li {
    counter-increment: custom-counter;
}

ol li::before {
    content: counter(custom-counter) !important;
    position: absolute !important;
    left: 0 !important;
    top: 0 !important;
    font-weight: 700 !important;
    color: var(--color-coral) !important;
}

/* Images */
picture {
    display: block;
    margin: 2rem 0;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--color-bg-white);
    min-width: 600px;
}

thead {
    background-color: var(--color-olive);
}

thead th {
    color: #ffffff;
    font-weight: 600;
    font-size: 16px;
    padding: 1rem;
    text-align: left;
}

tbody tr {
    border-bottom: 1px solid var(--color-border);
}

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

tbody td {
    padding: 1rem;
    font-size: 16px;
    color: var(--color-text-gray);
}

/* Conversion Buttons */
.conversion-button {
    display: inline-block !important;
    background-color: var(--color-coral) !important;
    color: #ffffff !important;
    padding: 1rem 2rem !important;
    text-decoration: none !important;
    font-weight: 600 !important;
    font-size: 18px !important;
    border-radius: 4px !important;
    transition: background-color 0.3s ease !important;
    white-space: nowrap !important;
    text-align: center !important;
    margin: 1.5rem 0 !important;
}

.conversion-button:hover {
    background-color: var(--color-coral-dark) !important;
}

/* Footer */
.footer {
    background-color: var(--color-olive);
    color: #ffffff;
    padding: 3rem 1.5rem 1.5rem;
    margin-top: 4rem;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: #ffffff !important;
    font-size: 18px !important;
    margin-bottom: 1rem !important;
    font-weight: 600 !important;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
    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: #ffffff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        font-size: 16px;
    }

    h2 {
        font-size: 28px !important;
    }

    h3 {
        font-size: 22px !important;
    }

    .content-section {
        padding: 1.5rem;
    }

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

@media (max-width: 480px) {
    h2 {
        font-size: 24px !important;
    }

    h3 {
        font-size: 20px !important;
    }

    p, ul li, ol li {
        font-size: 16px;
    }
}