/* Custom styles for Mendeleev */

/* Font import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

/* CSS Variables */
:root {
    --main-color: #0d9488;
    --main-dark: #0f766e;
    --main-darker: #115e59;
    --accent-color: #b76e79;
    --accent-light: #d4a5ab;
    --text-dark: #1f2937;
    --text-light: #f9fafb;
    --bg-light: #f0fdfa;
    --bg-dark: #134e4a;
}

/* Base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif !important;
    font-size: 18px !important;
    line-height: 1.7 !important;
    color: var(--text-dark) !important;
    background-color: #ffffff !important;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif !important;
    font-weight: 700 !important;
    line-height: 1.3 !important;
    color: var(--text-dark) !important;
}

h1 {
    font-size: 2.5rem !important;
    margin-bottom: 1rem !important;
}

h2 {
    font-size: 2rem !important;
    margin-bottom: 1rem !important;
    margin-top: 0 !important;
}

h3 {
    font-size: 1.5rem !important;
    margin-bottom: 0.75rem !important;
}

p {
    font-size: 18px !important;
    margin-bottom: 1rem !important;
    line-height: 1.7 !important;
}

/* Navigation menu fix */
.nav-menu li {
    margin-bottom: 0 !important;
}

nav ul,
nav ol,
footer ul,
footer ol,
.navbar ul,
.navbar ol,
header ul,
header ol {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

nav li,
footer li,
.navbar li,
header li {
    list-style: none !important;
    margin-bottom: 0 !important;
}

nav li::before,
nav li::after,
footer li::before,
footer li::after,
.navbar li::before,
.navbar li::after,
header li::before,
header li::after {
    content: none !important;
    display: none !important;
}

nav li::marker,
footer li::marker,
.navbar li::marker,
header li::marker {
    content: none !important;
    display: none !important;
}

/* Content list styles with rose gold star markers */
main ul,
main ol,
section ul:not(.nav-menu),
section ol:not(.nav-menu),
article ul,
article ol,
.content ul,
.content ol {
    list-style: none !important;
    padding-left: 1.5rem !important;
    margin-bottom: 1rem !important;
}

main ul li,
main ol li,
section ul:not(.nav-menu) li,
section ol:not(.nav-menu) li,
article ul li,
article ol li,
.content ul li,
.content ol li {
    position: relative !important;
    padding-left: 1.5rem !important;
    margin-bottom: 0.5rem !important;
    font-size: 18px !important;
}

main ul li::before,
main ol li::before,
section ul:not(.nav-menu) li::before,
section ol:not(.nav-menu) li::before,
article ul li::before,
article ol li::before,
.content ul li::before,
.content ol li::before {
    content: "\2605" !important;
    position: absolute !important;
    left: 0 !important;
    color: var(--accent-color) !important;
    font-size: 14px !important;
    top: 4px !important;
}

main ul li::marker,
main ol li::marker,
section ul:not(.nav-menu) li::marker,
section ol:not(.nav-menu) li::marker {
    content: none !important;
    display: none !important;
}

/* Table styles */
.table-container {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    margin-bottom: 1.5rem !important;
    border-radius: 0.5rem !important;
}

table {
    width: 100% !important;
    border-collapse: collapse !important;
    font-size: 16px !important;
    min-width: 600px !important;
}

thead {
    background-color: var(--main-color) !important;
    color: var(--text-light) !important;
}

th {
    padding: 1rem !important;
    text-align: left !important;
    font-weight: 600 !important;
    white-space: nowrap !important;
}

td {
    padding: 1rem !important;
    border-bottom: 1px solid #e5e7eb !important;
}

tbody tr:nth-child(even) {
    background-color: var(--bg-light) !important;
}

tbody tr:hover {
    background-color: #ccfbf1 !important;
}

/* Card styles */
.card {
    background: #ffffff !important;
    border-radius: 1rem !important;
    padding: 1.5rem !important;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06) !important;
    margin-bottom: 1.5rem !important;
    border: 1px solid #e5e7eb !important;
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05) !important;
}

/* Buttons */
.btn {
    display: inline-block !important;
    padding: 0.875rem 2rem !important;
    border-radius: 9999px !important;
    font-weight: 600 !important;
    font-size: 16px !important;
    text-decoration: none !important;
    white-space: nowrap !important;
    transition: all 0.3s ease !important;
    cursor: pointer !important;
    text-align: center !important;
}

.btn-primary {
    background-color: var(--accent-color) !important;
    color: var(--text-light) !important;
    border: none !important;
}

.btn-primary:hover {
    background-color: #a15d67 !important;
    transform: translateY(-2px) !important;
}

.btn-outline {
    background-color: transparent !important;
    color: var(--main-color) !important;
    border: 2px solid var(--main-color) !important;
}

.btn-outline:hover {
    background-color: var(--main-color) !important;
    color: var(--text-light) !important;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, var(--main-darker) 0%, var(--main-dark) 100%) !important;
    color: var(--text-light) !important;
    padding: 4rem 1rem !important;
}

.hero h1 {
    color: var(--text-light) !important;
    font-size: 2.5rem !important;
    font-weight: 700 !important;
    margin-bottom: 1.5rem !important;
}

.hero p {
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: 18px !important;
}

/* Image styles */
.section-image {
    width: 100% !important;
    height: auto !important;
    border-radius: 0.75rem !important;
    object-fit: cover !important;
}

.hero-image {
    border-radius: 1rem !important;
    max-width: 100% !important;
    height: auto !important;
}

/* Section spacing */
section {
    padding: 4rem 1rem !important;
}

section:nth-child(even) {
    background-color: var(--bg-light) !important;
}

/* Footer */
footer {
    background-color: var(--main-darker) !important;
    color: var(--text-light) !important;
    padding: 3rem 1rem 1.5rem !important;
}

footer h4 {
    color: var(--text-light) !important;
    font-size: 1.25rem !important;
    margin-bottom: 1rem !important;
}

footer p {
    color: rgba(255, 255, 255, 0.8) !important;
    font-size: 16px !important;
}

footer a {
    color: var(--accent-light) !important;
    text-decoration: none !important;
    transition: color 0.3s ease !important;
}

footer a:hover {
    color: var(--text-light) !important;
}

/* Star animations */
@keyframes twinkle {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(0.8);
    }
}

.star {
    position: absolute !important;
    color: var(--accent-color) !important;
    animation: twinkle 2s ease-in-out infinite !important;
    pointer-events: none !important;
}

.star:nth-child(2) {
    animation-delay: 0.3s !important;
}

.star:nth-child(3) {
    animation-delay: 0.6s !important;
}

.star:nth-child(4) {
    animation-delay: 0.9s !important;
}

.star:nth-child(5) {
    animation-delay: 1.2s !important;
}

/* Fade in animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease-out forwards !important;
}

/* Header/Navbar */
header {
    background-color: #ffffff !important;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06) !important;
    position: sticky !important;
    top: 0 !important;
    z-index: 100 !important;
}

.logo-img {
    box-shadow: none !important;
}

/* Mobile menu */
.mobile-menu-btn {
    display: none !important;
    background: none !important;
    border: none !important;
    cursor: pointer !important;
    padding: 0.5rem !important;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block !important;
    }

    .nav-menu {
        display: none !important;
        position: absolute !important;
        top: 100% !important;
        left: 0 !important;
        right: 0 !important;
        background: #ffffff !important;
        flex-direction: column !important;
        padding: 1rem !important;
        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1) !important;
    }

    .nav-menu.active {
        display: flex !important;
    }

    .nav-menu li {
        margin: 0 !important;
        padding: 0.5rem 0 !important;
    }

    h1 {
        font-size: 1.75rem !important;
    }

    h2 {
        font-size: 1.5rem !important;
    }

    .hero {
        padding: 2rem 1rem !important;
    }

    section {
        padding: 2rem 1rem !important;
    }

    .btn {
        padding: 0.75rem 1.5rem !important;
        font-size: 14px !important;
    }
}

/* Icon colors */
.bi {
    color: var(--main-color) !important;
}

.bi-accent {
    color: var(--accent-color) !important;
}

/* Table of contents */
.toc {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 0.75rem !important;
    margin-bottom: 2rem !important;
}

.toc a {
    padding: 0.5rem 1.25rem !important;
    border: 2px solid var(--main-color) !important;
    border-radius: 9999px !important;
    color: var(--main-color) !important;
    text-decoration: none !important;
    font-weight: 500 !important;
    font-size: 14px !important;
    white-space: nowrap !important;
    transition: all 0.3s ease !important;
}

.toc a:hover {
    background-color: var(--main-color) !important;
    color: var(--text-light) !important;
}