@font-face {
    font-family: 'VentiCF-Medium';
    src: url('../fonts/VentiCF-Medium.otf') format('opentype'),
         url('../fonts/VentiCF-Medium.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'VentiCF-ExtraBold';
    src: url('../fonts/VentiCF-ExtraBold.otf') format('opentype'),
         url('../fonts/VentiCF-ExtraBold.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
    font-display: swap;
}

:root {
    --color-accent:             #e11515;
    --color-accent-glow:        rgba(225, 21, 21, 0.5);
    --color-accent-glow-strong: rgba(225, 21, 21, 0.7);
    --color-white: #fff;
    --color-black: #000;

    --color-bg-dark:        #0a0a0a;
    --color-bg-light:       #ffffff;
    --color-bg-light-alt:   #f5f5f5;
    --color-text-dark:      #1a1a1a;
    --color-text-dark-muted:#555555;
    --color-border-light:   #e0e0e0;

    --font-medium: 'VentiCF-Medium',    sans-serif;
    --font-bold:   'VentiCF-ExtraBold', sans-serif;

    --slide-width: calc(100vw - 24px);
    --slide-count: 7;

    --transition: 0.3s;

    --section-padding: 48px;
    --container-max: 900px;
    --radius: 8px;
    --radius-lg: 12px;

    --fs-h2:    clamp(1.5rem, 4vw, 2.25rem);
    --fs-h3:    clamp(1.125rem, 3vw, 1.5rem);
    --fs-body:  clamp(0.9375rem, 2.5vw, 1.0625rem);
    --fs-small: clamp(0.8125rem, 2vw, 0.875rem);
}

@media screen and (min-width: 768px) {
    :root {
        --slide-width: 700px;
    }
}

/* ── Animations ── */

@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes glitch-before {
    0%   { clip: rect(117px, 350px, 108px, 30px) }
    5%   { clip: rect(122px, 350px, 148px, 30px) }
    10%  { clip: rect(100px, 350px,  37px, 30px) }
    15%  { clip: rect(134px, 350px,  49px, 30px) }
    20%  { clip: rect(149px, 350px,  43px, 30px) }
    25%  { clip: rect(145px, 350px,  28px, 30px) }
    30%  { clip: rect(  3px, 350px,  95px, 30px) }
    35%  { clip: rect( 96px, 350px,  17px, 30px) }
    40%  { clip: rect(135px, 350px, 140px, 30px) }
    45%  { clip: rect( 88px, 350px,   5px, 30px) }
    50%  { clip: rect(138px, 350px, 124px, 30px) }
    55%  { clip: rect(113px, 350px,  62px, 30px) }
    60%  { clip: rect(127px, 350px, 104px, 30px) }
    65%  { clip: rect(103px, 350px, 142px, 30px) }
    70%  { clip: rect(118px, 350px, 141px, 30px) }
    75%  { clip: rect(135px, 350px,   3px, 30px) }
    80%  { clip: rect(136px, 350px,  92px, 30px) }
    85%  { clip: rect( 70px, 350px, 114px, 30px) }
    90%  { clip: rect( 26px, 350px, 147px, 30px) }
    95%  { clip: rect( 38px, 350px,  86px, 30px) }
    100% { clip: rect( 26px, 350px, 142px, 30px) }
}

@keyframes glitch-after {
    0%   { clip: rect( 72px, 350px,  61px, 10px) }
    5%   { clip: rect( 86px, 350px,  26px, 10px) }
    10%  { clip: rect(105px, 350px,  94px, 10px) }
    15%  { clip: rect(111px, 350px,  39px, 10px) }
    20%  { clip: rect( 33px, 350px,  53px, 10px) }
    25%  { clip: rect( 61px, 350px,  90px, 10px) }
    30%  { clip: rect(130px, 350px,  18px, 10px) }
    35%  { clip: rect( 95px, 350px,  17px, 10px) }
    40%  { clip: rect(119px, 350px,  44px, 10px) }
    45%  { clip: rect(  1px, 350px,  87px, 10px) }
    50%  { clip: rect( 82px, 350px, 142px, 10px) }
    55%  { clip: rect(  5px, 350px,  16px, 10px) }
    60%  { clip: rect( 17px, 350px,  31px, 10px) }
    65%  { clip: rect( 24px, 350px,  43px, 10px) }
    70%  { clip: rect( 63px, 350px, 124px, 10px) }
    75%  { clip: rect( 65px, 350px, 149px, 10px) }
    80%  { clip: rect( 71px, 350px,  14px, 10px) }
    85%  { clip: rect( 59px, 350px,  59px, 10px) }
    90%  { clip: rect( 42px, 350px,  20px, 10px) }
    95%  { clip: rect(131px, 350px,  82px, 10px) }
    100% { clip: rect( 68px, 350px,  98px, 10px) }
}

/* ── Reset ── */

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

a {
    text-decoration: none;
    color: inherit;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
}

html {
    scroll-behavior: smooth;
    background: var(--color-bg-dark);
    overflow-x: hidden;
}

body {
    width: 100%;
    min-height: 100vh;
    font-size: 1rem;
    font-family: var(--font-medium);
    text-align: center;
    background: var(--color-bg-dark);
    color: var(--color-text-dark);
    overflow-x: hidden;
}

/* ── Skip link ── */

.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 8px 16px;
    z-index: 100;
    border-radius: var(--radius);
    font-family: var(--font-medium);
}

.skip-link:focus {
    top: 16px;
}

/* ── Container ── */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: 16px;
}

@media (min-width: 768px) {
    .container { padding-inline: 24px; }
}

@media (min-width: 1200px) {
    .container { padding-inline: 32px; }
}

/* ── Preloader ── */

#preloader {
    position: fixed;
    inset: 0;
    z-index: 60;
    background: var(--color-black);
    opacity: 1;
    transition: opacity var(--transition);
}

#loader {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 150px;
    height: 150px;
    margin: -75px 0 0 -75px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: var(--color-accent);
    animation: spin 2s linear infinite;
}

#loader::before,
#loader::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    border: 3px solid transparent;
}

#loader::before {
    inset: 5px;
    border-top-color: #ff4444;
    animation: spin 3s linear infinite;
}

#loader::after {
    inset: 15px;
    border-top-color: #cc0000;
    animation: spin 1.5s linear infinite;
}

/* ── Hero / Survey Section ── */

.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    background: url('../img/bg.webp') center / cover no-repeat var(--color-bg-dark);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.hero__inner {
    position: relative;
    flex: 1;
    padding: 0 13px;
    display: flex;
    flex-direction: column;
}

.page-title {
    font-size: 22px;
    font-family: var(--font-bold);
    color: var(--color-white);
    text-align: left;
    margin-top: 25px;
    position: relative;
}

.page-title::before,
.page-title::after {
    content: 'EXKLUSIVE PROMOTION VON COCA-COLA';
    position: absolute;
    top: 0;
    left: 0;
    font-size: inherit;
    font-family: inherit;
    text-align: left;
    color: var(--color-white);
}

.page-title::before {
    left: 3px;
    text-shadow: -3px 0 red;
    animation: glitch-before 2s linear infinite alternate;
}

.page-title::after {
    left: -3px;
    text-shadow: -3px 0 blue;
    animation: glitch-after 2s linear infinite alternate;
}

.page-title.no-glitch::before,
.page-title.no-glitch::after {
    display: none;
}

/* ── Pagination ── */

.pagination {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
    margin-top: 10%;
    opacity: 1;
    transition: opacity var(--transition);
}

.pagination__dots {
    display: flex;
    justify-content: center;
    align-items: center;
}

.pagination__dot {
    display: block;
    width: 11px;
    height: 11px;
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    margin: 0 14px;
}

.pagination__dot.active {
    background: var(--color-accent);
    box-shadow: 0 0 10px 6px var(--color-accent-glow-strong);
}

.pagination__label {
    font-size: 13px;
    font-family: var(--font-medium);
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 0.03em;
}

/* ── Slider / Survey ── */

.slider-container {
    width: var(--slide-width);
    margin: 10px auto 0;
    overflow: hidden;
    position: relative;
}

.slider-track {
    display: flex;
    width: calc(var(--slide-width) * var(--slide-count));
    transform: translateX(0);
    transition: transform var(--transition);
    will-change: transform;
}

.slide {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    width: var(--slide-width);
    padding-top: 15px;
}

.slide p {
    font-size: 23px;
    color: var(--color-white);
    font-weight: 800;
}

.slide__title {
    font-size: 25px;
    font-family: var(--font-bold);
    color: var(--color-white);
}

.slide__btn {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 230px;
    min-height: 50px;
    height: auto;
    margin: 15px auto 0;
    padding: 12px 15px;
    background: var(--color-accent);
    color: var(--color-white);
    font-size: 20px;
    font-family: var(--font-bold);
    border-radius: 5px;
    box-shadow: 0 0 10px 6px var(--color-accent-glow);
    transition: opacity var(--transition), box-shadow var(--transition), transform 0.1s ease;
}

.slide__btn:hover,
.slide__btn:focus-visible {
    opacity: 0.85;
    box-shadow: 0 0 18px 10px var(--color-accent-glow);
}

.slide__btn:active,
.slide__btn--selected {
    opacity: 0.7;
    transform: scale(0.96);
}

.slide__btn--uppercase {
    text-transform: uppercase;
}

.slide__backdrop {
    background: rgba(0, 0, 0, 0.45);
    border-radius: 12px;
    padding: 24px 20px;
    width: 100%;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .slide__backdrop {
        padding: 28px 32px;
    }
}

.slide .slide__note {
    font-family: var(--font-medium);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
    margin-top: 16px;
    padding: 0 4px;
    line-height: 1.5;
    letter-spacing: 0.01em;
}

/* ── Hero Prize Image ── */

.hero__prize {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    z-index: 5;
    pointer-events: none;
}

.hero__prize img {
    width: 150px;
    height: auto;
    filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.5));
}

@media (min-width: 768px) {
    .hero__prize {
        left: auto;
        right: 5%;
        transform: none;
        bottom: 16px;
    }

    .hero__prize img {
        width: 180px;
    }
}


/* ── Shared Section Styles ── */

.section-title {
    font-family: var(--font-bold);
    font-size: var(--fs-h2);
    margin-bottom: 32px;
    line-height: 1.2;
}

/* ── Article Section ── */

.article-section {
    background: var(--color-bg-light);
    padding: var(--section-padding) 0;
    text-align: left;
    color: var(--color-text-dark);
}

.article-section .section-title {
    color: var(--color-text-dark);
}

.article__author {
    font-family: var(--font-medium);
    color: var(--color-text-dark-muted);
}

.article__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    font-size: var(--fs-small);
    color: var(--color-text-dark-muted);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border-light);
}

.article__body {
    font-size: var(--fs-body);
    line-height: 1.8;
    color: var(--color-text-dark);
}

.article__body h3 {
    font-family: var(--font-bold);
    font-size: var(--fs-h3);
    margin: 28px 0 12px;
    color: var(--color-text-dark);
}

.article__body p {
    margin-bottom: 16px;
    color: var(--color-text-dark);
}

.article__body ul {
    margin: 0 0 16px 20px;
    color: var(--color-text-dark);
}

.article__body li {
    margin-bottom: 6px;
    line-height: 1.7;
}

.article__body a {
    font-family: var(--font-bold);
}

.article__cta {
    text-align: center;
    margin-top: 32px;
}

/* ── Button CTA ── */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-bold);
    font-size: 1.125rem;
    border-radius: var(--radius);
    transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
    cursor: pointer;
    border: none;
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: 0 0 10px 4px var(--color-accent-glow);
}

.btn--primary:hover,
.btn--primary:focus {
    opacity: 0.9;
    box-shadow: 0 0 18px 8px var(--color-accent-glow);
    transform: translateY(-2px);
}

.btn--primary:active {
    transform: scale(0.97);
}

/* ── Steps Section ── */

.steps-section {
    background: var(--color-bg-light-alt);
    padding: var(--section-padding) 0;
    color: var(--color-text-dark);
}

.steps-section .section-title {
    color: var(--color-text-dark);
}

.steps {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.step {
    text-align: center;
    padding: 28px 20px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    transition: transform var(--transition), box-shadow var(--transition);
}

.step:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.step__number {
    display: block;
    margin: 0 auto 20px;
    filter: drop-shadow(0 4px 12px rgba(225, 21, 21, 0.35));
}

.step h3 {
    font-family: var(--font-bold);
    font-size: var(--fs-h3);
    margin-bottom: 8px;
    color: var(--color-text-dark);
}

.step p {
    font-size: var(--fs-body);
    color: var(--color-text-dark-muted);
    line-height: 1.6;
}

@media (min-width: 768px) {
    .steps {
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }
}

/* ── FAQ Section ── */

.faq-section {
    background: var(--color-bg-light);
    padding: var(--section-padding) 0;
    text-align: left;
    color: var(--color-text-dark);
}

.faq-section .section-title {
    text-align: center;
    color: var(--color-text-dark);
}

.faq__list {
    max-width: 750px;
    margin-inline: auto;
}

.faq__item {
    border-bottom: 1px solid var(--color-border-light);
}

.faq__item:first-child {
    border-top: 1px solid var(--color-border-light);
}

.faq__question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 18px 0;
    cursor: pointer;
    font-family: var(--font-bold);
    font-size: var(--fs-body);
    color: var(--color-text-dark);
    list-style: none;
    transition: color var(--transition);
}

.faq__question::-webkit-details-marker {
    display: none;
}

.faq__question::marker {
    display: none;
    content: '';
}

.faq__question:hover {
    color: var(--color-accent);
}

.faq__chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform var(--transition);
    color: var(--color-text-dark-muted);
}

.faq__item[open] .faq__chevron {
    transform: rotate(180deg);
}

.faq__answer {
    padding: 0 0 18px;
    color: var(--color-text-dark-muted);
    font-size: var(--fs-body);
    line-height: 1.7;
}

.faq__answer p {
    color: var(--color-text-dark-muted);
}

/* ── Related Articles Section ── */

.related-section {
    background: var(--color-bg-light-alt);
    padding: var(--section-padding) 0;
    color: var(--color-text-dark);
}

.related-section .section-title {
    color: var(--color-text-dark);
}

.related__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    text-align: left;
}

.card {
    display: block;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    transition: transform var(--transition), box-shadow var(--transition);
    color: inherit;
    text-decoration: none;
}

.card:hover,
.card:focus-visible {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.card__img {
    background: var(--color-bg-light-alt);
    aspect-ratio: 16 / 9;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-dark-muted);
    font-size: var(--fs-small);
}

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

.card__body {
    padding: 16px;
}

.card__body h3 {
    font-family: var(--font-bold);
    font-size: var(--fs-h3);
    margin-bottom: 8px;
    color: var(--color-text-dark);
    line-height: 1.3;
}

.card__body p {
    font-size: var(--fs-small);
    color: var(--color-text-dark-muted);
    line-height: 1.5;
}

.card__link {
    display: inline-block;
    margin-top: 10px;
    font-family: var(--font-bold);
    font-size: var(--fs-small);
    color: var(--color-accent);
    transition: opacity var(--transition);
}

.card__link:hover {
    opacity: 0.7;
}

@media (min-width: 768px) {
    .related__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .related__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ── Footer ── */

.site-footer {
    background: var(--color-bg-dark);
    border-top: 3px solid var(--color-accent);
    padding: 40px 0 24px;
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--fs-small);
    text-align: left;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

.footer__col h4 {
    font-family: var(--font-bold);
    color: var(--color-white);
    margin-bottom: 12px;
    font-size: var(--fs-small);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.footer__col a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    padding: 5px 0;
    transition: color var(--transition);
}

.footer__col a:hover,
.footer__col a:focus {
    color: var(--color-accent);
}

.footer__disclaimer {
    font-size: 11px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.35);
}

.footer__bottom {
    margin-top: 32px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.35);
}

@media (min-width: 768px) {
    .footer__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ── Sticky CTA ── */

.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 14px 16px;
    background: var(--color-accent);
    color: var(--color-white);
    text-align: center;
    font-family: var(--font-bold);
    font-size: 1rem;
    z-index: 35;
    transform: translateY(150%);
    transition: transform var(--transition);
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.3);
    text-decoration: none;
}

.sticky-cta.is-visible {
    transform: translateY(0);
}

@media (min-width: 768px) {
    .sticky-cta {
        left: auto;
        right: 24px;
        bottom: 24px;
        width: auto;
        padding: 14px 28px;
        border-radius: var(--radius);
        transform: translateY(calc(150% + 24px));
    }
}

/* ── Focus Visible ── */

:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ── Reduced Motion ── */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms;
        animation-iteration-count: 1;
        transition-duration: 0.01ms;
        scroll-behavior: auto;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ── Desktop Overrides ── */

@media screen and (min-width: 768px) {
    .hero {
        background: url('../img/bg-pc.webp') center / cover no-repeat var(--color-bg-dark);
    }

    .page-title {
        font-size: 35px;
        margin-top: 50px;
        text-align: center;
    }

    .page-title::before { left: -3%; }
    .page-title::after  { left:  3%; }

    .slide p {
        font-size: 25px;
    }

    .pagination {
        margin-top: 40px;
    }
}