* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

:root {
    /* Brand colors */
    --color-red: #C72D39;
    --color-red-dark: #A82430;
    --color-navy: #38495D;
    --color-navy-deep: #1E2D40;
    --color-bg: #F2F2F2;
    --color-white: #FFFFFF;
    --color-gray-text: #848F99;
    --color-text-primary: #1A2330;

    /* Semantic tokens */
    --body-background: var(--color-bg);
    --first-background: var(--color-red);
    --first-background-hover: var(--color-red-dark);
    --seccond-background: var(--color-white);
    --third-background: var(--color-navy);
    --header-fontcolor: var(--color-text-primary);
    --text-fontcolor: var(--color-gray-text);
    --highlight-fontcolor: var(--color-white);
    --link-fontcolor: var(--color-red);
    --hero-fontcolor: var(--color-text-primary);
}

body {
    font-family: 'IBM Plex Sans', -apple-system, Arial, Helvetica, sans-serif;
    background-color: var(--body-background);
    margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    color: var(--header-fontcolor);
    letter-spacing: -0.02em;
}

p {
    color: var(--text-fontcolor);
}

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

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 9999;
    background: var(--first-background);
    color: var(--highlight-fontcolor);
    padding: 0.5rem 1rem;
    border-radius: 0 0 6px 6px;
    font-weight: 600;
    text-decoration: none;
    transition: top 200ms;
}

.skip-link:focus {
    top: 0;
}

/* Focus styles */
:focus-visible {
    outline: 2px solid var(--first-background);
    outline-offset: 3px;
    border-radius: 3px;
}

/* Top Button */
#topBtn {
    display: none;
    position: fixed;
    bottom: 4rem;
    right: 0;
    z-index: 99;
    font-size: 0.85rem;
    font-weight: 600;
    border: none;
    outline: none;
    background-color: var(--first-background);
    color: var(--highlight-fontcolor);
    cursor: pointer;
    padding: 14px 16px;
    border-radius: 10px 0 0 10px;
    transition: background-color 200ms ease;
    min-width: 44px;
    min-height: 44px;
}

#topBtn:hover {
    background-color: var(--first-background-hover);
}

/* Top login link */
.top-login-nav {
    position: absolute;
    top: 1.25rem;
    right: 2rem;
    z-index: 120;
}

.top-login-link {
    color: var(--header-fontcolor);
    font-weight: 700;
    text-decoration: none;
}

.top-login-underline {
    transition: 400ms;
    border-bottom: 2px solid transparent;
}

.top-login-underline:hover {
    border-color: var(--third-background);
}

/* Header video + card */
video {
    display: block;
    object-fit: cover;
    width: 100%;
    height: 70vh;
    filter: opacity(0.53);
}

.head-vid-col {
    position: relative;
}

.head-card-col {
    display: flex;
    flex-direction: row;
    position: absolute;
    width: 100%;
    top: 20%;
    justify-content: center;
}

.head-card-row {
    text-align: center;
}

.head-logo {
    width: 30%;
}

.head-text {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    font-size: clamp(1.1rem, 3vw, 2rem);
    color: var(--hero-fontcolor);
    font-weight: 400;
    letter-spacing: -0.01em;
}

.head-register-btn {
    color: var(--highlight-fontcolor);
    background-color: var(--first-background);
    text-decoration: none;
    border-radius: 50px;
    padding: 0.9rem 2rem;
    text-transform: uppercase;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    transition: background-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
    display: inline-block;
    min-height: 44px;
    line-height: 1.2;
}

.head-register-btn:hover {
    background-color: var(--first-background-hover);
    box-shadow: 0 4px 20px rgba(199, 45, 57, 0.45);
    transform: translateY(-1px);
}

/* Main intro */
.main-intro-row {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin: 4rem clamp(2rem, 8vw, 10rem) 0;
}

.intro-left-con {
    width: 75%;
}

.intro-right-con {
    display: flex;
    flex-direction: column;
    text-align: center;
}

.main-intro-txt {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    font-size: clamp(1.3rem, 3vw, 2.2rem);
    text-transform: uppercase;
    line-height: 1.4;
    margin: 0;
}

.intro-txt-bottom {
    margin-top: 1rem;
}

.intro-txt-color {
    color: var(--third-background);
}

.intro-inner-row {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-top: 1rem;
    gap: 0.5rem;
}

.intro-inner-row a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

/* Section headers */
.section-headers {
    text-align: center;
    font-size: clamp(1.5rem, 3.5vw, 2.5rem);
    margin: 4rem clamp(1rem, 4vw, 5rem);
    font-weight: 300;
}

.section-headers::after {
    content: '';
    display: block;
    width: 3rem;
    height: 3px;
    background: var(--first-background);
    border-radius: 2px;
    margin: 0.6rem auto 0;
}

/* Process section */
.process-txt {
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    text-align: center;
    margin: 0 clamp(1rem, 8vw, 10rem) 4rem;
}

.process-container-row {
    display: flex;
    flex-direction: row;
    margin: 4rem clamp(1rem, 4vw, 5rem) 8rem;
    justify-content: center;
    gap: 4rem;
}

.process-card {
    width: 20%;
    background-color: var(--seccond-background);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    text-align: center;
    border-radius: 16px;
    padding: 4rem 0 3rem;
    transition: box-shadow 300ms ease, transform 300ms ease, border-top-color 300ms ease;
    border-top: 3px solid transparent;
}

.process-card:hover {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.14);
    transform: translateY(-3px);
    border-top-color: var(--first-background);
}

/* Process card that is a link */
a.process-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
}

.process-card-inner-row {
    display: flex;
    flex-direction: row;
    justify-content: center;
}

.process-card-header {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    font-size: clamp(1rem, 2vw, 1.5rem);
    text-transform: none;
    font-weight: 400;
    margin-top: 3rem;
    color: var(--header-fontcolor);
}

.process-card-text {
    font-size: clamp(0.9rem, 1.2vw, 1rem);
    width: 70%;
    margin: 0;
    color: var(--text-fontcolor);
}

/* Information section */
.information-container-row {
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: 4rem;
    margin: 4rem clamp(1rem, 4vw, 5rem) 8rem;
}

.information-container-col {
    min-width: 44%;
    max-width: 50%;
}

.information-header {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    margin-top: 0;
}

.information-txt {
    font-size: clamp(0.9rem, 1.2vw, 1.05rem);
}

.information-img {
    width: 100%;
    height: auto;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
    border-radius: 16px;
}

/* Conditions section */
.conditions-txt {
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    text-align: center;
    margin: 0 clamp(1rem, 8vw, 10rem);
}

.conditions-row {
    display: flex;
    flex-direction: row;
    margin: 3rem clamp(1rem, 4vw, 5rem) 8rem;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.conditions-card {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 250px;
    border-radius: 16px;
    background-color: var(--seccond-background);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    text-align: center;
    justify-content: space-between;
    overflow: hidden;
}

.card-icon {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--highlight-fontcolor);
    background-color: var(--first-background);
    border-radius: 0 0 16px 16px;
    position: relative;
    width: 4rem;
    height: 3rem;
    top: 0;
    margin: 0 auto 1.5rem;
}

.conditions-card-split {
    display: flex;
    flex-direction: column;
}

.conditions-card-header {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    text-transform: none;
    font-weight: 400;
    margin: 0 0 5rem;
    color: var(--header-fontcolor);
}

.conditions-list-container {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.conditions-card-list {
    padding: 0;
    margin: 0 1rem 4rem;
}

.conditions-list-input {
    list-style: none;
    text-align: center;
    font-size: clamp(0.9rem, 1.2vw, 1rem);
    color: var(--text-fontcolor);
    margin-bottom: 1rem;
}

.condition-footer-container {
    display: flex;
    flex-direction: column;
    background-color: var(--first-background);
    border-bottom-left-radius: 16px;
    border-bottom-right-radius: 16px;
    height: 4.5rem;
    justify-content: center;
}

.conditions-action {
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    font-weight: 600;
    color: var(--highlight-fontcolor);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.action-under {
    border-bottom: 2px solid transparent;
    transition: border-color 400ms ease;
    padding-bottom: 2px;
}

.action-under:hover {
    border-color: var(--seccond-background);
}

/* Contact section */
.contact-txt {
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    text-align: center;
    margin: 0 clamp(1rem, 8vw, 10rem) 1.5rem;
}

/* Footer */
footer {
    background-color: var(--third-background);
    margin-top: 8rem;
    padding-bottom: 1rem;
}

.footer-container {
    padding: 3rem 0;
    text-align: center;
}

.footer-header {
    font-family: 'IBM Plex Sans', Arial, sans-serif;
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    text-transform: none;
    color: var(--highlight-fontcolor);
}

.footer-text {
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    color: var(--highlight-fontcolor);
}

.footer-link {
    font-size: clamp(0.85rem, 1.2vw, 1rem);
    color: var(--highlight-fontcolor);
    text-decoration: none;
}

.footer-link:hover {
    text-decoration: underline;
}

.footer-legal-row {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    margin: 0 clamp(1rem, 4vw, 5rem);
}

#footer-legal-txt {
    margin: 0;
}

.legal-link {
    margin: 0 0 0 1rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

/* Legal sections */
#Datenschutz {
    display: none;
    margin: 8rem clamp(1rem, 4vw, 5rem) 0;
}

#Impressum {
    display: none;
    margin: 8rem clamp(1rem, 4vw, 5rem) 0;
}

#AGB {
    display: none;
    margin: 8rem clamp(1rem, 4vw, 5rem) 0;
}

#Datenschutz h2,
#Datenschutz h3,
#Impressum h2,
#Impressum h3,
#AGB h2,
#AGB h3 {
    color: var(--link-fontcolor);
    font-family: 'IBM Plex Sans', Arial, sans-serif;
}

#Datenschutz p,
#Impressum p,
#AGB p {
    color: var(--highlight-fontcolor);
    line-height: 1.6;
    font-size: clamp(0.85rem, 1.2vw, 1rem);
}

/* Tablet breakpoint */
@media only screen and (min-width: 1001px) and (max-width: 1400px) {
    .process-container-row {
        flex-wrap: wrap;
    }

    .process-card {
        width: 40%;
        margin-bottom: 2rem;
    }
}

/* Mobile breakpoint */
@media only screen and (max-width: 1000px) {
    .top-login-nav {
        top: 1rem;
        right: 1rem;
    }

    .main-intro-row {
        flex-wrap: wrap;
        margin: 4rem 1.5rem 0;
        justify-content: center;
    }

    .intro-left-con {
        width: 100%;
        text-align: center;
        margin-bottom: 2rem;
    }

    .information-container-col {
        min-width: 100%;
        max-width: 100%;
    }

    .process-container-row {
        flex-wrap: wrap;
        margin: 4rem 1.5rem 8rem;
        gap: 2rem;
    }

    .process-card {
        width: 90%;
    }

    a.process-card {
        width: 90%;
    }

    .information-container-row {
        flex-wrap: wrap-reverse;
        margin: 4rem 1.5rem 8rem;
    }

    .information-container-row.upper {
        flex-wrap: wrap;
    }

    .conditions-row {
        flex-wrap: wrap;
        margin: 3rem 1.5rem 8rem;
    }

    .conditions-card {
        min-width: 100%;
    }

    .head-logo {
        width: 60%;
    }
}
.conditions-feature {
    position: relative;
    cursor: pointer;
    margin-bottom: 1rem;
    list-style: none;
    text-align: center;
    font-size: clamp(0.9rem, 1.2vw, 1rem);
    color: var(--text-fontcolor);
}
.conditions-feature-title {
    font-weight: 600;
    border-bottom: 1px dashed currentColor;
}
.conditions-feature-desc {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 0.75rem;
    border-radius: 8px;
    width: 220px;
    z-index: 10;
    font-weight: 400;
    font-size: 0.85rem;
    pointer-events: none;
    transition: opacity 0.2s, visibility 0.2s;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.conditions-feature:hover .conditions-feature-desc,
.conditions-feature:active .conditions-feature-desc,
.conditions-feature:focus .conditions-feature-desc {
    visibility: visible;
    opacity: 1;
}