@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Sora:wght@400;500;600;700;800;900&display=swap');

:root {
    --bg-dark: #f8fafc;          /* Slate 50 (Very light gray-blue) */
    --bg-surface: #ffffff;       /* Pure white */
    --bg-card: #ffffff;          /* Pure white card */
    --border-color: #e2e8f0;      /* Slate 200 border */
    --border-glow: rgba(5, 150, 105, 0.05); /* Soft green glow */
    --accent-blue: #2563eb;      /* Vibrant blue */
    --accent-green: #059669;     /* Emerald green */
    --accent-green-rgb: 5, 150, 105;
    --accent-color: var(--accent-blue);
    --accent-orange-rgb: 37, 99, 235;
    --text-white: #0f172a;       /* Slate 900 (Dark heading text) */
    --text-silver: #334155;      /* Slate 700 (Dark body text) */
    --text-muted: #64748b;       /* Slate 500 (Muted text) */
    --font-title: 'Sora', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --container-max: 1200px;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-silver);
    font-family: var(--font-body);
    line-height: 1.7;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-white);
    font-family: var(--font-title);
    font-weight: 700;
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

a {
    color: var(--accent-green);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--text-white);
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4rem 0;
}

/* Progress Bar */
.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    z-index: 1010;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    transition: width 0.1s ease;
}

/* Header & Navigation */
.site-header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1.2rem 0;
    transition: var(--transition);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    font-family: var(--font-title);
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    color: var(--text-white);
    display: flex;
    align-items: center;
    text-decoration: none;
}

.site-logo span {
    color: var(--accent-blue);
}

.site-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-silver);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.25rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-green);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-white);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link.active {
    color: var(--text-white);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.08), transparent 40%),
                radial-gradient(circle at bottom left, rgba(59, 130, 246, 0.08), transparent 40%),
                var(--bg-surface);
    padding: 6rem 0 5rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    letter-spacing: -1px;
    max-width: 800px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-silver);
    max-width: 650px;
    margin: 0 auto 2.5rem;
    opacity: 0.85;
}

/* Search Box */
.search-box-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.search-icon {
    position: absolute;
    left: 1.25rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: var(--text-muted);
}

.search-box {
    width: 100%;
    padding: 1.1rem 1.1rem 1.1rem 3.2rem;
    background-color: rgba(7, 11, 25, 0.7);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    color: var(--text-white);
    font-size: 1.05rem;
    font-family: var(--font-body);
    transition: var(--transition);
}

.search-box:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.25);
    background-color: var(--bg-dark);
}

/* Category Filter Wrapper */
.categories-wrapper {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    max-width: 900px;
    margin: 0 auto;
}

.cat-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-silver);
    padding: 0.6rem 1.2rem;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.cat-btn:hover {
    border-color: var(--accent-green);
    color: var(--text-white);
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
}

.cat-btn.active {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    border-color: transparent;
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.25);
}

/* Homepage & Layout */
.homepage-layout, .article-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 3rem;
}

.homepage-main, .article-main {
    min-width: 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.no-results {
    text-align: center;
    padding: 3rem 0;
}

/* Card design */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-green);
    box-shadow: 0 12px 30px rgba(16, 185, 129, 0.12);
}

.card-img-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--bg-surface);
    overflow: hidden;
}

.card-img-wrapper img, .card-img-wrapper svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-badge {
    align-self: flex-start;
    background-color: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: 4px;
    margin-bottom: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-white);
    line-height: 1.4;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-silver);
    opacity: 0.8;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.read-more {
    font-weight: 700;
    color: var(--accent-green);
    font-size: 0.85rem;
}

/* Sidebar Widgets */
.sidebar-widget {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.widget-title {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 1.2rem;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
}

.info-widget-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-widget-item-tp {
    display: flex;
    gap: 0.85rem;
    align-items: flex-start;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.info-widget-item-tp:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.info-widget-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.info-widget-text {
    display: flex;
    flex-direction: column;
}

.info-widget-label {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text-white);
}

.info-widget-value {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.fact-text {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    min-height: 80px;
    transition: opacity 0.3s ease;
}

.widget-btn {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--accent-green);
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 6px;
    cursor: pointer;
    width: 100%;
    transition: var(--transition);
}

.widget-btn:hover {
    background-color: var(--accent-green);
    color: var(--text-white);
    border-color: transparent;
}

/* Article Structure */
.article-header {
    margin-bottom: 2.5rem;
}

.article-category {
    background-color: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--accent-blue);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.3rem 0.75rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
    margin-bottom: 1rem;
}

.article-title-large {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    margin-bottom: 1.2rem;
    line-height: 1.25;
}

.article-meta-large {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.article-cover-img-wrapper {
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 3rem;
    border: 1px solid var(--border-color);
    aspect-ratio: 16/9;
}

.article-cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.summary-box {
    background-color: rgba(16, 185, 129, 0.04);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2.5rem;
}

.summary-box h3 {
    font-size: 1.15rem;
    margin-bottom: 0.85rem;
}

.summary-box ul {
    list-style-type: none;
}

.summary-box li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.6rem;
    font-size: 0.95rem;
}

.summary-box li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-green);
    font-weight: bold;
}

/* Article Content Markdown Rendering */
.article-content {
    font-size: 1.05rem;
    line-height: 1.8;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.article-content h2 {
    font-size: 1.75rem;
    margin: 3rem 0 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.article-content h3 {
    font-size: 1.35rem;
    margin: 2rem 0 1rem;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content ul, .article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content a {
    color: var(--accent-blue);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: var(--transition);
}

.article-content a:hover {
    color: var(--accent-green) !important;
    text-decoration: underline;
}

.article-content blockquote {
    background-color: rgba(15, 23, 42, 0.02);
    border-left: 4px solid var(--accent-blue);
    padding: 1.25rem 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

/* Premium Alert Blocks */
.article-content blockquote.alert-block {
    background-color: #f8fafc;
    border-left: 5px solid var(--accent-blue);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 0 12px 12px 0;
    font-style: normal;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    border-top: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.article-content blockquote.alert-block p {
    font-style: normal;
    margin: 0;
    color: var(--text-silver);
    font-size: 0.98rem;
    line-height: 1.6;
}

.article-content blockquote.alert-block .alert-title {
    font-family: var(--font-title);
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Color variations */
.article-content blockquote.alert-block-note,
.article-content blockquote.alert-block-important {
    border-left-color: var(--accent-blue);
    background-color: rgba(37, 99, 235, 0.02);
}
.article-content blockquote.alert-block-note .alert-title {
    color: var(--accent-blue);
}
.article-content blockquote.alert-block-note .alert-title::before {
    content: "\f05a"; /* Info Circle */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 1.1rem;
}

.article-content blockquote.alert-block-tip {
    border-left-color: var(--accent-green);
    background-color: rgba(16, 185, 129, 0.02);
}
.article-content blockquote.alert-block-tip .alert-title {
    color: var(--accent-green);
}
.article-content blockquote.alert-block-tip .alert-title::before {
    content: "\f0eb"; /* Lightbulb */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 1.1rem;
}

.article-content blockquote.alert-block-warning,
.article-content blockquote.alert-block-caution {
    border-left-color: #f59e0b;
    background-color: rgba(245, 158, 11, 0.02);
}
.article-content blockquote.alert-block-warning .alert-title {
    color: #d97706;
}
.article-content blockquote.alert-block-warning .alert-title::before {
    content: "\f071"; /* Warning Triangle */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 1.1rem;
}

/* Tables */
.table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    margin: 0;
}

.article-content th {
    background-color: var(--bg-card);
    color: var(--text-white);
    font-weight: 700;
    text-align: left;
    padding: 0.9rem 1.2rem;
    border-bottom: 2px solid var(--border-color);
}

.article-content td {
    padding: 0.9rem 1.2rem;
    border-bottom: 1px solid var(--border-color);
    background-color: #ffffff;
}

.article-content tr:last-child td {
    border-bottom: none;
}

.article-content tr:hover td {
    background-color: #f8fafc;
}

/* TOC style */
.toc-list {
    list-style-type: none;
}

.toc-item {
    margin-bottom: 0.65rem;
}

.toc-link {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    display: block;
    line-height: 1.4;
    transition: var(--transition);
}

.toc-link:hover, .toc-link.active {
    color: var(--accent-green);
    padding-left: 0.35rem;
}

.toc-link.active {
    font-weight: 700;
}

/* FAQs Accordions */
.faq-section-title {
    margin-top: 4rem;
    margin-bottom: 1.5rem;
}

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 4rem;
}

.faq-item {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.faq-question {
    padding: 1.25rem 1.5rem;
    font-weight: 700;
    color: var(--text-white);
    cursor: pointer;
    user-select: none;
    outline: none;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--accent-green);
}

.faq-item[open] .faq-question {
    border-bottom: 1px solid var(--border-color);
    color: var(--accent-green);
}

.faq-answer {
    padding: 1.25rem 1.5rem;
    font-size: 0.95rem;
    color: var(--text-silver);
    background-color: #f8fafc;
}

/* Read Next */
.read-next-section {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.read-next-title {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
}

.read-next-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

/* Footer Section */
.site-footer {
    background-color: #f1f5f9; /* Slate 100 */
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    color: var(--text-silver);
    font-size: 0.95rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h2 {
    font-family: var(--font-title);
    font-size: 1.8rem;
    font-weight: 900;
    margin-bottom: 1.2rem;
}

.footer-brand h2 span {
    color: var(--accent-blue);
}

.footer-brand p {
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: var(--text-white);
}

.footer-links-list {
    list-style-type: none;
}

.footer-links-list li {
    margin-bottom: 0.75rem;
}

.footer-links-list a {
    color: var(--text-silver);
    transition: var(--transition);
}

.footer-links-list a:hover {
    color: var(--accent-green);
    padding-left: 0.25rem;
}

/* Spotlight Sidebar Widgets */
.spotlight-widget {
    background-color: var(--bg-surface, #ffffff);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.spotlight-widget:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    border-color: var(--accent-blue);
}

.spotlight-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    color: #ffffff !important;
    font-family: var(--font-title);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 6px 12px;
    border-radius: 4px;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.spotlight-img-wrapper {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    position: relative;
}

.spotlight-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.spotlight-widget:hover .spotlight-img {
    transform: scale(1.05);
}

.spotlight-content {
    padding: 1.25rem;
}

.spotlight-title {
    font-family: var(--font-title);
    font-size: 1.05rem;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    font-weight: 700;
    margin-top: 0;
}

.spotlight-title a {
    color: #0f172a !important;
    text-decoration: none;
    transition: var(--transition);
}

.spotlight-title a:hover {
    color: var(--accent-blue) !important;
}

.spotlight-desc {
    font-size: 0.85rem;
    color: var(--text-muted, #64748b);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.spotlight-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent-blue);
    text-decoration: none;
    letter-spacing: 0.5px;
    transition: var(--transition);
}

.spotlight-link:hover {
    color: var(--accent-green) !important;
}

.footer-partner-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 16px;
    margin-bottom: 1.5rem;
    font-size: 0.8rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
    width: 100%;
}

.footer-partner-links a {
    color: var(--text-muted) !important;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.footer-partner-links a:not(:last-child)::after {
    content: "•";
    margin-left: 12px;
    margin-right: 4px;
    color: var(--border-color, #e2e8f0);
    pointer-events: none;
    display: inline-block;
}

.footer-partner-links a:hover {
    color: var(--accent-green) !important;
    text-decoration: underline;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 1rem;
}

/* Responsive CSS */
@media (max-width: 992px) {
    .homepage-layout, .article-layout {
        grid-template-columns: 1fr;
    }
    
    .homepage-sidebar, .article-sidebar {
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.75rem;
    }

    .hero-title {
        font-size: 2.0rem;
    }
    
    .article-title-large {
        font-size: 1.65rem;
        line-height: 1.35;
    }

    .article-content h2 {
        font-size: 1.40rem;
    }

    .article-content h3 {
        font-size: 1.20rem;
    }
    
    .site-nav {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--bg-surface);
        padding: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        gap: 1rem;
        box-shadow: var(--shadow-lg);
    }
    
    .site-nav.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* Calculator Styles */
.calculator-container {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    margin: 2.5rem 0;
    box-shadow: var(--shadow-md);
    font-family: var(--font-body);
}

.calc-title {
    font-family: var(--font-title);
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 2rem;
    color: var(--text-white);
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.calc-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2.5rem;
}

@media (max-width: 992px) {
    .calc-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.calc-inputs-side {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.calc-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.calc-group label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-white);
}

.calc-input {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background-color: #f8fafc;
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.calc-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background-color: #ffffff;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}

.calc-btn-wrapper {
    margin-top: 1.5rem;
}

.calc-btn {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    border: none;
    color: #ffffff !important;
    font-weight: 700;
    padding: 1rem;
    border-radius: 8px;
    cursor: pointer;
    width: 100%;
    font-size: 1rem;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.15);
}

.calc-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(5, 150, 105, 0.25);
}

.calc-results-side {
    background: linear-gradient(145deg, #f8fafc, #f1f5f9);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 1.5rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.calc-results-title {
    font-family: var(--font-title);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.calc-result-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.calc-result-item-tp {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px dashed var(--border-color);
}

@media (max-width: 480px) {
    .calc-result-item-tp {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    .calc-result-value {
        align-self: flex-end;
    }
}

.calc-result-item-tp:last-child {
    border-bottom: none;
    background-color: rgba(5, 150, 105, 0.05);
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid rgba(5, 150, 105, 0.15);
    margin-top: 0.5rem;
}

.calc-result-label {
    font-size: 0.95rem;
    color: var(--text-silver);
    font-weight: 500;
}

.calc-result-value {
    font-family: var(--font-title);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent-blue);
}

.calc-result-item-tp:last-child .calc-result-value {
    color: var(--accent-green);
    font-size: 1.4rem;
}

.calc-disclaimer {
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}