:root {
    --bg-light: #f6f7fb;
    --bg-dark: #07060a;
    --text-light: #0b0b0d;
    --text-dark: #f3f3f6;
    --accent-start: #ff4dd2;
    --accent-end: #9b6bff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'SF Pro Display', 'Inter', sans-serif;
}

body {
    background: var(--bg-dark);
    color: var(--text-dark);
    transition: background 0.6s ease, color 0.6s ease;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.light {
    background: var(--bg-light);
    color: var(--text-light);
}

.container {
    max-width: 80%;
    width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.profile {
    margin-top: 4rem;
    padding: 0 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
}

.profile img {
    width: 30%;
    height: 30%;
    border-radius: 50%;
    box-shadow: 0 6px 14px rgba(202, 18, 219, 0.274);
}

.info h1 {
    margin-left: 2rem;
    font-size: 1.6rem;
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.info p {
    margin-left: 2rem;
    font-size: 0.9rem;
    opacity: 0.75;
}

/* Toggle iPhone style */
.theme-toggle {
    position: relative;
}

.slider {
    display: block;
    width: 50px;
    height: 28px;
    background: #ccc;
    border-radius: 999px;
    position: relative;
    cursor: pointer;
    transition: background 0.3s ease;
}

.slider::before {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    transition: transform 0.4s ease, background 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

input[type="checkbox"] {
    display: none;
}

input[type="checkbox"]:checked + .slider {
    background: linear-gradient(90deg, var(--accent-start), var(--accent-end));
}

input[type="checkbox"]:checked + .slider::before {
    transform: translateX(22px);
}

/* Cards */
main {
    display: grid;
    gap: 16px;
    width: 100%;
}

.card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    aspect-ratio: 16 / 9; /* mantém proporção uniforme no desktop */
    background: transparent; /* sem fundo preto */
}

.card img {
    width: 100%;
    height: auto;
    object-fit: contain; /* mostra a imagem completa */
    border-radius: 20px;
    display: block;
}

.card:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.5));
    opacity: 0;
    transition: opacity 0.4s ease, backdrop-filter 0.4s ease;
    color: white;
    backdrop-filter: blur(0px);
}

.card:hover .overlay {
    opacity: 1;
    backdrop-filter: blur(8px);
}

.overlay h2 {
    font-size: 1.2rem;
    font-weight: 600;
}

.overlay p {
    font-size: 0.9rem;
    opacity: 0.85;
    margin-top: 4px;
}

/* Footer */
footer {
    font-size: 0.85rem;
    opacity: 0.7;
    margin: 2rem 0;
}

footer a {
    color: var(--accent-end);
    text-decoration: none;
}

/* Mobile */
@media (max-width: 480px) {
    .card {
        aspect-ratio: auto; /* altura livre no mobile */
        background: transparent; /* sem fundo escuro */
    }

    .card img {
        width: 100%;
        height: auto;
        object-fit: contain;
    }
}