style.css

:root {
    --font-family-heading: "Anton", sans-serif;
    --font-family-body: "Noto Sans JP", sans-serif;
    --color-white: #fffefc;
    --color-black: #020911;
    --color-accent-yellow: #f2e52e;
    --color-accent-red: #f20574;
    --color-background-black: #171525;
    --color-background-navy: #030427;
    --color-form-background-yellow: #fffab9;
    --color-form-placeholder-gray: #ad9783;
    --color-border-red: #df6da2;
    --color-button-hover-red: #f043a5;
    --color-course-hover-yellow: #f4e877;
    --color-hero-overlay: #39186f66;
    --color-course-overlay: #200813a1;
}

/* global */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-family-body);
}

img {
    display: block;
}

.button-text {
    cursor: pointer;
}

/* button共通 */
.button {
    width: 100%;
    height: 60px;
    background: var(--color-accent-red);
    display: flex;
    padding: 10px 40px;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    transition:
        background 0.3s,
        box-shadow 0.3s;
}
.button:hover {
    background: var(--color-button-hover-red);
}
.button-text {
    color: var(--color-white);
    font-size: 20px;
    margin: 0px;
    width: 100%;
    padding-right: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
}

@media (max-width: 750px) {
    .button {
        height: 40px;
    }
    .button-text {
        font-size: 14px;
    }
}

/* header */
.header {
    height: 80px;
    background-color: var(--color-background-black);
    display: flex;
    justify-content: center;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    width: 100%;
}

.header-logo-wrapper {
    margin: 0;
}

.header-logo {
    height: 50px;
}
@media (max-width: 750px) {
    .header {
        height: 60px;
    }

    .header-logo {
        height: 30px;
    }
}

/* hero */
.hero {
    background-image: url("img/hero.png");
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 96px 40px;
    position: relative;
    margin-top: 80px;
}
.hero::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-hero-overlay);
}
.hero-container {
    width: 100%;
    max-width: 1000px;
    display: flex;
    justify-content: flex-end;
    z-index: 1;
}
.hero-texts {
    color: var(--color-accent-yellow);
    display: flex;
    flex-direction: column;
    gap: 30px;
}
.hero-main-copy {
    font-family: var(--font-family-heading);
    font-size: 64px;
    line-height: 64px;
    margin: 0;
    letter-spacing: 3.2px;
}

.hero-main-copy-accent {
    color: var(--color-accent-red);
}

.hero-sub-copy {
    margin: 0;
}

@media (max-width: 750px) {
    .hero {
        padding: 40px 20px;
        margin-top: 60px;
    }
    .hero-container {
        justify-content: flex-start;
    }

    .hero-texts {
        gap: 20px;
    }
}

.about {
    background: var(--color-background-black);
    color: var(--color-white);
    display: flex;
    padding: 80px 0px;
    gap: 20px;
    justify-content: center;
    align-items: center;
    position: relative;
}

.about-wrapper {
    display: flex;
    padding: 0px 40px;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    max-width: 880px;
}

.about-title {
    font-family: var(--font-family-heading);
    font-size: 32px;
    margin: 0px;
    letter-spacing: 0.64px;
}
.about-title-accent-1 {
    color: var(--color-accent-red);
}

.about-title-accent-2 {
    color: var(--color-accent-yellow);
}

.about-text-and-image {
    display: flex;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.about-text {
    font-family: var(--font-family-heading);
    font-size: 16px;
    margin: 0px;
}

.about-image {
    width: 320px;
    background-size: cover;
}

@media (max-width: 750px) {
    .about {
        padding: 40px 20px;
    }
    .about-wrapper {
        padding: 0px;
        gap: 40px;
    }
    .about-title {
        font-size: 24px;
    }
    .about-image {
        display: none;
    }
}

/* Course */
.courses {
    background: var(--color-background-navy);
    color: var(--color-white);
    display: flex;
    padding: 80px 0px;
    justify-content: center;
    align-items: center;
    position: relative;
}
.course-wrapper {
    display: flex;
    padding: 0px 40px;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    max-width: 880px;
}
.course-title {
    font-family: var(--font-family-heading);
    font-size: 32px;
    margin: 0px;
    letter-spacing: 0.64px;
}
.course-cards {
    display: flex;
    max-width: 800px;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
}
.course-card {
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
    align-self: stretch;
    background: var(--color-accent-yellow);
    box-shadow: 4px 4px 0px 0px var(--color-accent-red);
    text-decoration: none;
    transition:
        background 0.3s,
        box-shadow 0.3s;
}
.course-card:hover {
    background: var(--color-course-hover-yellow);
    box-shadow: 12px 12px 2px 0px var(--color-button-hover-red);
}
.course-card-title-img {
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url("img/live.png");
    background-size: cover;
    height: 150px;
    width: 250px;
    position: relative;
    z-index: 0;
}
.course-card-title-img::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-course-overlay);
    z-index: -1;
}
.course-card-title {
    display: flex;
    justify-content: center;
    color: var(--color-white);
    font-family: var(--font-family-heading);
    font-size: 32px;
    letter-spacing: 1.6px;
    margin: 0px;
    z-index: 1;
    padding: 51px 58.5px;
    width: 250px;
}
.course-card-body {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    flex-direction: column;
    padding: 20px;
    gap: 10px;
    padding: 20px;
    max-width: 550px;
}
.course-card-text {
    color: var(--color-black);
    margin: 0px;
    font-size: 16px;
}
.course-card-see_more {
    color: var(--color-accent-red);
    margin: 0px;
    font-size: 16px;
}

#see_more {
    box-shadow: 4px 4px 0px 0px var(--color-accent-yellow);
}
#see_more:hover {
    box-shadow: 12px 12px 2px 0px var(--color-accent-yellow);
}

@media (max-width: 750px) {
    .courses {
        padding: 40px 0px;
    }
    .course-wrapper {
        padding: 0px 20px;
        gap: 40px;
    }
    .course-card {
        height: auto;
        flex-direction: column;
    }
    .course-card-title-img {
        width: 100%;
        height: 220px;
    }
    .course-card-body {
        height: 100%;
    }
    .course-button {
        width: 100%;
    }
}
/* Signup */
.signup {
    display: flex;
    padding: 80px 0px;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    background: var(--color-accent-yellow);
    position: relative;
}
.signup-wrapper {
    display: flex;
    padding: 0px 40px;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}
.signup-title {
    color: var(--color-black);
    font-family: var(--font-family-heading);
    font-size: 32px;
    letter-spacing: 0.64px;
    margin: 0px;
}
.signup-text {
    color: var(--color-black);
    font-size: 16px;
    margin: 0px;
    width: 100%;
}
.signup-form {
    display: flex;
    width: 100%;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}
.input {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}
.signup-input-wrapper {
    display: flex;
    justify-self: center;
    width: 100%;
    font-size: 16px;
}
.signup-input {
    border-radius: 8px;
    border: 1px solid var(--form-border-red, #df6da2);
    background: var(--form-background-yellow, #fffab9);
    width: 100%;
    display: flex;
    padding: 10px;
    word-wrap: break-word;
}
label {
    width: 250px;
    text-align: left;
}

#transmission {
    box-shadow: 4px 4px 0px 0px var(--color-black);
    border: none;
}
#transmission:hover {
    box-shadow: 12px 12px 2px 0px var(--color-black);
}
textarea {
    resize: none;
}
@media (max-width: 750px) {
    .signup {
        padding: 40px 20px;
    }
    .signup-input-wrapper {
        height: auto;
        flex-direction: column;
    }
}
/* Footer */
.footer {
    background: var(--color-background-black);
    color: var(--color-white);
    display: flex;
    padding: 60px 0px;
    justify-content: center;
    align-items: center;
    position: relative;
}
.footer-text {
    font-size: 16px;
    margin: 0px;
}
@media (max-width: 750px) {
    .footer {
        padding: 40px 0px;
    }
    .footer-text {
        font-size: 12px;
    }
}