@import url('https://fonts.googleapis.com/css2?family=Merriweather:ital,opsz,wght@0,18..144,300..900;1,18..144,300..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Elms+Sans:ital,wght@0,100..900;1,100..900&family=Merriweather:ital,opsz,wght@0,18..144,300..900;1,18..144,300..900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Elms+Sans:ital,wght@0,100..900;1,100..900&family=Merriweather:ital,opsz,wght@0,18..144,300..900;1,18..144,300..900&family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

:root {
    --base-color: #d1d1d1;
    --text-color: #000000;
    --primary-color:#ffbe4d;
    --secondary-color: #9c9cff;
    --color-1: #f1f1f1;
    --color-2: #F3F7F9;
    --color-3: #F6F3F9;
}

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

html {
    font-family: poppins;
    color: var(--text-color);
}

body {
    padding: 1em;
    background-color: var(--base-color);
}

h1, h2, h3 {
    font-family: merriweather,poppins;
}

nav {
    margin: 1em auto 3em auto;
    width: min(1000px, 100%);
}

nav ul {
    display: flex;
    align-items: center;
    list-style-type: none;
    gap: 2em;
}

nav li:first-child {
    margin-right: auto;
    font-family: Merriweather, Poppins;
    font-weight: bold;
}

nav a {
    text-decoration:none;
    color: var(--text-color);
}

nav a:hover {
    text-decoration: underline;
}

header, section{
    margin: 2em auto;
    width: min(75em, 100%);
    background-color: var(--color-1);
    padding: min(2em,15%);
    border-radius: 1em;
}

.flex-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 3em;
}

header img{
    max-width: 100%;
    border-radius: 1em;
    object-fit: cover;
    object-position: bottom;
}

.text-container {
    flex: 0 1 34em;
}

h1 {
    font-size: 2.5rem;
}

.text-container p {
    margin: .75em 0 1em 0;
    font-size: 1.25rem;
}

.cta-button {
    display: inline-block;
    text-decoration: none;
    color: white;
    background-color: var(--primary-color);
    padding: 1em 1.8em;
    border-radius: 1em;
    font-weight: 600;
}

.secondary{
    background-color: var(--secondary-color);
}

section{
    padding: 3em min(1em, 50%);
    background-color: var(--color-2);
    text-align: center;
}

h2 {
    font-size: 2rem;
}

section p{
    margin-top: 1em;
    font-size: 1.25rem;
}

section#香港で撮った写真と思い出{
    background-color: var(--color-3);
}

.grid-container{
    margin-top: 2em;
    margin-bottom: 3em;
    display: grid;
    width: 100%;
    grid-template-columns: repeat(4,1fr);
    grid-template-rows: 1fr 1fr;
    grid-template-areas:
    "img-1 img-1 img-2 img-3"
    "img-1 img-1 img-4 img-5"
    "img-6 img-7 img-8 img-9";
gap: 1em;
}

.grid-container img{
    height: 100%;
    width: 100%;
    object-fit: cover;
    border-radius: .5em;
    transition: 100ms ease;
}

.grid-container img:hover{
    scale: 1.05;
}
.gallery-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1em;
    margin-top: 2em;
    margin-bottom: 2em;
}

.gallery-container img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: .5em;
}

details {
    margin-top: 1em;
    background-color: var(--base-color);
    border-radius: 1em;
}

details summary {
    padding: 1em;
    font-size: 1.7rem;
    font-family: merriweather, poppins;
}

details p {
    padding: 0 2em 2em 2em;

}

@media (max-width: 988px){
    header {
        text-align: center;
    }
    header .text-container{
        padding-top:0;
    }
}

@media (max-width: 640px) {
    nav li{
        display: none;
    }
    nav li:first-child,
    nav li: last-child {
        display: block;
    }

    header {
        margin-top: 0;
    }

    .cta-button{
        margin-top: .5em;
        width: 100%;

    }

    .grid-container{
        display: flex;
        flex-direction: column;

    }
    .text-container p{
        font-size: 1rem;

    }
    h2 {
        font-size: 1.5rem;

    }
}
footer{
    text-align: center;
    
}