:root {
    --color-fruits: #FFEAA1;
    --color-vegetables: #E6A0A0;
    --color-mammals: #E2BA8B;
    --color-birds: #B1DBE7;

    --color-border: #000000;
    --color-text: #000000;
    --color-bg: #FDF8EE;

    --border-width: 2px;
    --border-radius: 16px;

    --font-family: 'Patrick Hand', cursive;
    --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);

    --spacing-s: 8px;
    --spacing-m: 12px;
    --spacing-l: 16px;
    --spacing-xl: 24px;

    --card-height: 110px;
    --card-logo-height: 68px;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    user-select: none;
    -webkit-user-select: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
}

img {
    pointer-events: none;
    -webkit-user-drag: none;
    -webkit-touch-callout: none;
}

.music-toggle {
    position: fixed;
    bottom: var(--spacing-l);
    right: var(--spacing-l);
    z-index: 2;
    width: 40px;
    height: 40px;
    border: var(--border-width) solid var(--color-border);
    border-radius: 50%;
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    transition: transform 0.2s var(--ease-bounce);
}

.music-toggle:hover { transform: scale(1.1); }
.music-toggle:active { transform: scale(0.9); }
.music-toggle__icon { width: 100%; height: 100%; }

.floating-cards {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.floating-card {
    position: absolute;
    width: 70px;
    height: 70px;
    opacity: 0;
    perspective: 300px;
    pointer-events: auto;
    cursor: pointer;
    animation: float linear infinite;
}

.floating-card__inner {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
    transform-style: preserve-3d;
    transition: transform 0.5s var(--ease-bounce);
}

.floating-card--flipped .floating-card__inner {
    transform: rotateY(180deg);
}

.floating-card__back,
.floating-card__front {
    position: absolute;
    inset: 0;
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.floating-card__front {
    transform: rotateY(180deg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.floating-card__front img {
    width: 85%;
    height: 85%;
    object-fit: contain;
}

@keyframes float {
    0%   { opacity: 0; transform: translateY(110vh) rotate(0deg); }
    5%   { opacity: 1; }
    90%  { opacity: 1; }
    100% { opacity: 0; transform: translateY(-10vh) rotate(360deg); }
}

.header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-l) var(--spacing-l);
    position: relative;
    z-index: 1;
    pointer-events: none;
}

.header__title {
    display: inline-flex;
    font-size: 3.5rem;
    font-weight: 400;
    letter-spacing: 2px;
    line-height: 1;
}

.header__letter {
    display: inline-block;
    opacity: 0;
    transform: translateY(-30px) scale(0.5);
    animation: letterBounce 0.5s var(--ease-bounce) forwards;
}

.header__letter:nth-child(1) { animation-delay: 0.00s; }
.header__letter:nth-child(2) { animation-delay: 0.06s; }
.header__letter:nth-child(3) { animation-delay: 0.12s; }
.header__letter:nth-child(4) { animation-delay: 0.18s; }
.header__letter:nth-child(5) { animation-delay: 0.24s; }
.header__letter:nth-child(6) { animation-delay: 0.30s; }
.header__letter:nth-child(7) { animation-delay: 0.36s; }

@keyframes letterBounce {
    0%   { opacity: 0; transform: translateY(-30px) scale(0.5); }
    60%  { transform: translateY(4px) scale(1.05); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

.header__subtitle {
    font-size: 1.4rem;
    margin-top: var(--spacing-s);
    opacity: 0;
    animation: fadeIn 0.6s ease 0.5s forwards;
}

@keyframes fadeIn {
    to { opacity: 0.7; }
}

.features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-s);
    margin-top: var(--spacing-m);
    list-style: none;
    opacity: 0;
    animation: fadeIn 0.6s ease 0.6s forwards;
}

.features__pill {
    pointer-events: auto;
    padding: 4px 14px;
    border: var(--border-width) solid var(--color-border);
    border-radius: 100px;
    font-size: 0.95rem;
    background-color: white;
    transition: transform 0.2s var(--ease-bounce);
}

.features__pill:hover { transform: scale(1.08); }

.apps {
    width: 100%;
    max-width: 600px;
    padding: 0 var(--spacing-l);
    flex: 1;
    position: relative;
    z-index: 1;
    pointer-events: none;
}

.apps__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-m);
}

.app-card {
    pointer-events: auto;
    display: flex;
    align-items: center;
    height: var(--card-height);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--color-text);
    overflow: hidden;
    cursor: pointer;
    position: relative;
    opacity: 0;
    transform: translateY(20px) rotate(-1deg);
    transition: transform 0.2s var(--ease-bounce);
}

.app-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--border-radius);
    opacity: 0;
    background: radial-gradient(
        circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(0, 0, 0, 0.12) 0%,
        transparent 60%
    );
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.app-card:hover::after { opacity: 1; }
.app-card:active { transform: scale(0.95); }

.app-card--visible {
    animation: slideIn 0.5s var(--ease-bounce) forwards;
}

.app-card--settled {
    animation: none;
    opacity: 1;
    transform: none;
}

@keyframes slideIn {
    0%   { opacity: 0; transform: translateY(20px) rotate(-1deg); }
    60%  { transform: translateY(-4px) rotate(0.5deg); }
    100% { opacity: 1; transform: translateY(0) rotate(0deg); }
}

.app-card--fruits     { background-color: var(--color-fruits); }
.app-card--vegetables { background-color: var(--color-vegetables); }
.app-card--mammals    { background-color: var(--color-mammals); }
.app-card--birds      { background-color: var(--color-birds); }

.app-card__logo {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: var(--spacing-m);
}

.app-card__image {
    height: var(--card-logo-height);
    width: auto;
    object-fit: contain;
    transition: transform 0.3s var(--ease-bounce);
}

.app-card:hover .app-card__image {
    transform: scale(1.08) rotate(-2deg);
}

.app-card__name {
    flex: 1;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding-inline-start: var(--spacing-m);
}

.app-card__text {
    font-size: 1.6rem;
    white-space: nowrap;
}

.footer__cta {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-m);
    opacity: 0.6;
}

.footer {
    text-align: center;
    padding: var(--spacing-l) var(--spacing-l) var(--spacing-xl);
    position: relative;
    z-index: 1;
    pointer-events: none;
    opacity: 0;
    animation: fadeInUp 0.5s ease 0.8s forwards;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.footer__badge {
    pointer-events: auto;
    height: 60px;
    width: auto;
    opacity: 0.8;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.footer__badge:hover {
    opacity: 1;
    transform: scale(1.05);
}

@media (hover: hover) {
    .app-card--settled:hover { transform: scale(1.06); }
    .app-card--settled:active { transform: scale(0.97); }
}

@media (max-width: 480px) {
    :root { --card-height: 100px; }
    .header__title { font-size: 3rem; }
    .header__subtitle { font-size: 1.1rem; }
    .app-card__text { font-size: 1.3rem; }
    .app-card__image { height: 56px; }
    .floating-card { width: 50px; height: 50px; }
}

@media (min-width: 768px) and (min-height: 900px) {
    :root { --card-height: 130px; --card-logo-height: 80px; }
    .header__title { font-size: 4.5rem; }
    .footer__badge { height: 70px; }
    .app-card__text { font-size: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    .floating-cards { display: none; }
}