@charset "utf-8";

:root {
    --primary: #e9e9e9;
    --accent: #26A69A;
    --background: #ffffff;
    --text: #000000;
    --card-bg: #e9e9e9;
    --border: #000000;
    --overlay: rgba(0, 0, 0, 0.4);
    --link: #000000;
    --link-hover: #26A69A;
    --footer-link: lightgray;
    --footer-link-hover: #000000;
}

body.light-mode {
    --background: #ffffff;
    --text: #000000;
    --card-bg: #e9e9e9;
    --border: #000000;
    --overlay: rgba(0, 0, 0, 0.4);
    --link: #000000;
    --link-hover: #26A69A;
    --footer-link: lightgray;
    --footer-link-hover: #000000;
}

body.dark-mode {
    --background: #000000;
    --text: #ffffff;
    --card-bg: #1a1a1a;
    --border: #ffffff;
    --overlay: rgba(0, 0, 0, 0.2);
    --link: #ffffff;
    --link-hover: #26A69A;
    --footer-link: #aaaaaa;
    --footer-link-hover: #ffffff;
}

body {
    margin: 0;
    font-family: 'Inter', 'Noto Sans SC', Arial, sans-serif;
    line-height: 1.8;
    background-color: var(--background);
    color: var(--text);
    transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

ul {
    list-style-type: none;
    margin: 1.5em 0;
    padding-left: 0;
}

ul li {
    position: relative;
    padding-left: 1.5rem;
}

ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
}

a {
    text-decoration: none;
    color: var(--link);
    transition: color 0.3s ease;
}

a:hover {
    color: var(--link-hover);
}

.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(0.5rem);
    -webkit-backdrop-filter: blur(0.5rem);
}

body.dark-mode .header {
    background-color: rgba(0, 0, 0, 0.45);
}

.header nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 95%;
    margin: 0 auto;
}

.header a {
    color: var(--text);
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 1.2rem;
    font-weight: 500;
}

.header a:focus {
    outline: 0.125rem solid var(--accent);
    outline-offset: 0.125rem;
}

.header-left {
    display: flex;
    align-items: left;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

@media screen and (max-width: 768px) {
    .header nav {
        flex-direction: column;
        gap: 0.75rem;
    }
    .header a {
        display: block;
        text-align: left;
    }
    .header-right {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media screen and (max-width: 768px) {
    .container {
        flex-direction: column;
    }
}

.main {
    width: 100%;
    margin: 0 auto;
}

.video-container {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    text-align: center;
    color: var(--text);
    margin-top: -6rem;
    padding-top: 6rem;
}

.unmute-button {
    position: absolute;
    bottom: 5rem;
    right: 5rem;
    z-index: 2;
    color: #fff;
    border: 0.1rem solid #fff;
    border-radius: 0.5rem;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.unmute-button:hover {
    background-color: var(--text);
    border-color: var(--text);
    color: var(--background);
}

.back-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.starting {
    width: 100%;
    height: 100%;
    background-color: var(--overlay);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 1;
}

.starting h1,
.starting p {
    color: #ffffff;
}

.space {
    height: 2rem;
}

h1 {
    color: var(--text);
    text-align: center;
    font-size: 2.5rem;
    font-family: 'Montserrat', Arial, sans-serif;
    line-height: 1.2;
}

.introduction {
    font-size: 1.25rem;
    width: 90%;
    height: fit-content;
    margin-top: auto;
    margin-bottom: auto;
    text-align: center;
}

.introduction p {
    text-align: center;
}

.button-container {
    width: fit-content;
    height: fit-content;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.button-p {
    background: transparent;
    border: 0.1rem solid #fff;
    color: #fff;
    padding: 0.8rem 2rem;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    word-break: break-word;
}

.button-p:hover {
    background-color: var(--text);
    color: var(--background);
}

button {
    background: transparent;
    border: 0.1rem solid var(--border);
    color: var(--text);
    padding: 0.8rem 2rem;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background-color: var(--text);
    color: var(--background);
}

.left-right {
    width: 95%;
    height: 70vh;
    display: flex;
    flex-direction: row;
    box-sizing: border-box;
    margin: 0 auto;
    color: var(--text);
}

.left {
    background-color: var(--card-bg);
    flex: 30%;
    justify-content: space-between;
    padding: 3rem;
}

.left-text {
    height: 50%;
    margin-top: auto;
    margin-bottom: auto;
}

.left-text h1,
.left-text p {
    text-align: justify;
    color: var(--text);
}

.right {
    flex: 70%;
    position: relative;
    overflow: hidden;
}

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

.second-left-right {
    width: 95%;
    height: 70vh;
    display: flex;
    flex-direction: row;
    box-sizing: border-box;
    margin-left: auto;
    margin-right: auto;
    gap: 2.5rem;
}

.second-left {
    flex: 60%;
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
}

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

.second-right {
    border: 0.2rem solid var(--border);
    flex: 30%;
    font-size: 1rem;
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: var(--card-bg);
}

.second-right-text {
    padding: 3rem;
}

.second-right-text h1,
.second-right-text p {
    text-align: justify;
    color: var(--text);
}

.highlight {
    color: var(--accent);
    font-weight: 600;
}

.container {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    width: 95%;
    margin: 0 auto;
    padding: 3rem 0;
}

.column {
    flex: 1;
    padding: 1.5rem;
    box-shadow: 0.1rem 0.1rem 0.5rem rgba(0,0,0,0.1);
    background-color: var(--card-bg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0;
    animation: fadeIn 1s ease-in forwards;
}

.column:nth-child(2) {
    animation-delay: 0.2s;
}

.column:nth-child(3) {
    animation-delay: 0.4s;
}

.column:hover {
    transform: translateY(-0.5rem);
    box-shadow: 0.2rem 0.2rem 1rem var(--accent);
    border-radius: 1rem;
}

.small_title {
    font-size: 1.25rem;
    font-weight: 600;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.big_title {
    font-size: 1.75rem;
    font-weight: 600;
}

.content p {
    text-align: left;
    color: var(--text);
}

hr {
    background-color: var(--text);
    width: 90%;
    height: 0.00625rem;
    margin: 0 auto;
}

.blank {
    height: 4rem;
}

.back {
    text-align: center;
    padding-top: 1rem;
    width: 100%;
    height: auto;
    padding-bottom: 1rem;
}

.source_text {
    font-size: 1.75rem;
    font-weight: 600;
    text-align: left;
}

@keyframes slideIn {
    0% { transform: translateY(-100%); }
    100% { transform: translateY(0); }
}

@keyframes fadeIn {
    0% { opacity: 0; transform: translateY(1rem); }
    100% { opacity: 1; transform: translateY(0); }
}

.button {
    display: inline-block;
    padding: 1rem 2rem;
    margin-top: 1rem;
    border: 0.2rem solid var(--border);
    color: var(--text);
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.2rem;
    transition: background-color 0.3s, color 0.3s;
}

.button:hover {
    color: var(--background);
    background-color: var(--text);
}

.bottomcontainer {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    padding: 1.5rem;
    width: 95%;
    margin: 0 auto;
}

.bottomcolumn {
    flex: 1;
    box-sizing: border-box;
    padding: 4rem;
    text-align: center;
}

.bottom_title {
    text-align: center;
}

.bottomcontent {
    margin: 0 auto;
    text-align: center;
}

.bottomcontent a {
    color: var(--footer-link);
}

.bottomcontent a:hover {
    color: var(--footer-link-hover);
}

.animated-container {
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    text-align: center;
    border: 0.2rem solid var(--border);
    border-radius: 1rem;
    padding-bottom: 5rem;
    padding-top: 5rem;
    width: 95%;
    z-index: 1;
}

.animated-container-title {
    font-size: 1.5rem;
    letter-spacing: 0.2rem;
    color: var(--text);
}

.main-animated-container {
    display: flex;
    margin: 0 auto;
    gap: 2rem;
    position: relative;
    overflow-x: hidden;
    width: 90%;
    z-index: 2;
}

.animated-items {
    position: relative;
    flex: 1 1 20%;
    overflow: hidden;
}

.animated-items img {
    width: 100%;
    height: 40rem;
    max-height: 40rem;
    object-fit: cover;
}

.animated-text-container {
    text-align: justify;
    color: var(--text);
    z-index: 3;
}

.animated-text {
    padding: 1rem;
}

.animated-text h2 {
    color: var(--text);
    margin: 0;
    font-size: 1.5rem;
}

.animated-text p {
    color: var(--text);
    margin: 0.5rem 0 0 0;
    font-size: 1rem;
}

.no-scroll {
    overflow: hidden;
}