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

body {
    font-family: 'Poppins', sans-serif;
    background: linear-gradient(to bottom, #53ceff, #1272b3, #07498a);
    color: #fff;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

/* Bolhas decorativas */
.bubble {
    position: absolute;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    animation: float 15s infinite ease-in-out;
    z-index: 1;
}

@keyframes float {
    0% {
        transform: translateY(0) translateX(0) scale(1);
        opacity: 0;
    }

    50% {
        transform: translateY(-100px) translateX(20px) scale(1.2);
        opacity: 0.6;
    }

    100% {
        transform: translateY(-200px) translateX(0) scale(1);
        opacity: 0;
    }
}

/* Cabeçalho compacto */
header {
    padding: 15px 0;
    position: relative;
}

.header-content {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.05); /* fundo bem transparente */
    border-radius: 15px;
    padding: 15px;
    -webkit-backdrop-filter: blur(3px); /* iOS/Safari: leve desfoque */
    backdrop-filter: blur(3px); /* outros navegadores */
    box-shadow: 0 5px 20px rgba(0, 59, 99, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05); /* borda muito sutil */
}


h1 {
    font-family: 'Short Stack', cursive;
    font-size: 2.2rem;
    margin-bottom: 8px;
    color: #ffcc00;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #ffdd66;
}

.date {
    font-size: 1.3rem;
    margin: 10px 0;
    background: rgba(0, 0, 0, 0.3);
    padding: 8px 15px;
    border-radius: 50px;
    display: inline-block;
    color: #ffdd66;
    border: 2px solid #ffcc00;
}

/* Estilo para a foto do Arthur */
.photo-container {
    margin: 15px auto;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid #ffcc00;
    box-shadow: 0 0 20px rgba(255, 204, 0, 0.5),
        inset 0 0 20px rgba(0, 0, 0, 0.2);
    position: relative;
    background: #cce6ff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-frame {
    width: 170px;
    height: 170px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #fff;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #99ccff;
}

.arthur-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.photo-placeholder {
    font-size: 5rem;
    color: #4d94ff;
}

.photo-container::before,
.photo-container::after {
    content: '';
    position: absolute;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    z-index: -1;
}

.photo-container::before {
    width: 30px;
    height: 30px;
    top: -10px;
    right: 20px;
    animation: bubble-float 8s infinite ease-in-out;
}

.photo-container::after {
    width: 20px;
    height: 20px;
    bottom: -5px;
    left: 25px;
    animation: bubble-float 6s infinite ease-in-out 1s;
}

@keyframes bubble-float {

    0%,
    100% {
        transform: translateY(0) scale(1);
        opacity: 0.6;
    }

    50% {
        transform: translateY(-15px) scale(1.1);
        opacity: 0.8;
    }
}

/* Conteúdo principal compacto */
.details {
    background: rgba(255, 255, 255, 0.1);
    padding: 10px;
    border-radius: 15px;
    margin: 10px 0;
    backdrop-filter: blur(5px);
    box-shadow: 0 5px 20px rgba(0, 59, 99, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.details p {
    font-size: 0.8rem;
    line-height: 1.4;
    margin-bottom: 10px;
}

/* Botões compactos */
.buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    font-size: 1rem;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: white;
    text-decoration: none;
    gap: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btn-location {
    background: linear-gradient(to right, #4CAF50, #2E7D32);
}

.btn-whatsapp {
    background: linear-gradient(to right, #25D366, #128C7E);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

/* Animação dos animais marinhos */
.ocean-life {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.sea-creature {
    font-size: 2.2rem;
    animation: swim 8s infinite ease-in-out;
    filter: drop-shadow(2px 2px 4px rgba(0, 0, 0, 0.3));
}

@keyframes swim {

    0%,
    100% {
        transform: translateY(0) rotate(0);
    }

    25% {
        transform: translateY(-8px) rotate(5deg);
    }

    50% {
        transform: translateY(0) rotate(0);
    }

    75% {
        transform: translateY(8px) rotate(-5deg);
    }
}

/* Rodapé compacto */
footer {
    margin-top: 20px;
    padding: 15px;
    font-size: 0.9rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 59, 99, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

footer p {
    margin-bottom: 6px;
}

.highlight {
    color: #ffdd66;
    font-weight: bold;
}

/* Efeitos responsivos */
@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    .age {
        font-size: 3.5rem;
    }

    .date {
        font-size: 1.1rem;
    }

    .btn {
        font-size: 0.9rem;
        padding: 10px 15px;
    }

    .sea-creature {
        font-size: 1.8rem;
    }

    .birthday-boy {
        font-size: 1rem;
    }

    .photo-container {
        width: 150px;
        height: 150px;
    }

    .photo-frame {
        width: 140px;
        height: 140px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.4rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    .date {
        font-size: 1.1rem;
    }

    .btn {
        font-size: 0.9rem;
        padding: 10px 15px;
    }

    .sea-creature {
        font-size: 1.8rem;
    }

    .birthday-boy {
        font-size: 1rem;
    }

    .photo-container {
        width: 110px;
        height: 110px;
    }

    .photo-frame {
        width: 100px;
        height: 100px;
    }

    /* Reduzir tamanho do nome e idade */
    .birthday-boy {
        font-size: 2rem;
    }

    .age {
        font-size: 1.5rem;
    }

    /* Reduzir margens internas para compactar o header */
    .header-content {
        padding: 10px;
    }
}

/* Efeito de parallax para camadas */
.parallax {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 120" preserveAspectRatio="none"><path d="M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z" fill="%23003b63"></path></svg>');
    background-size: 1200px 80px;
    animation: wave 10s linear infinite;
}

.wave:nth-child(2) {
    bottom: 5px;
    opacity: 0.5;
    animation: wave 8s linear infinite reverse;
    background-size: 1100px 80px;
}

@keyframes wave {
    0% {
        background-position-x: 0;
    }

    100% {
        background-position-x: 1200px;
    }
}

.birthday-boy {
    font-family: 'Pacifico', cursive;
    /* Fonte cursiva ligada */
    font-size: 2.6rem;
    /* Nome maior */
    color: #ffffff;
    /* Cor dourada */
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    margin: 10px 0 0px 0;
    font-weight: normal;
}

.age {
    font-family: 'Pacifico', cursive;
    font-size: 1.8rem;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    margin: 0 0 10px 0;
    font-weight: normal;
}

.dataAniversario {
    font-family: 'Pacifico', cursive;
    font-size: 1.4rem;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    margin: 0 0 10px 0;
    font-weight: bold;
}

@media (max-width: 480px) {

    /* Reduzir ainda mais a foto e moldura */
    .photo-container {
        width: 110px;
        height: 110px;
    }

    .photo-frame {
        width: 100px;
        height: 100px;
    }

    /* Reduzir tamanho do nome e idade */
    .birthday-boy {
        font-size: 1.6rem;
        /* menor que antes */
    }

    .age {
        font-size: 1.2rem;
        /* menor que antes */
    }

    /* Reduzir margens internas para compactar o header */
    .header-content {
        padding: 10px;
    }
}


.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.7);
}

.modal-content {
    position: relative;
    margin: 10% auto;
    padding: 0;
    width: 90%;
    max-width: 500px;
}

.close {
    position: absolute;
    top: 10px;
    right: 20px;
    color: #fff;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
}

.btn-gifts {
    background: linear-gradient(to right, #FFD700, #FFC107);
    /* tons de amarelo/dourado */
    color: #000;
}

.btn-gifts:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

/* Fundo animado dentro do header */
.header-sea-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

/* Bolhas pequenas */
.header-sea-background .sea-bubble {
    position: absolute;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: float 10s infinite ease-in-out;
}

@keyframes float {
    0% { transform: translateY(0) scale(1); opacity: 0.3; }
    50% { transform: translateY(-100px) scale(1.2); opacity: 0.6; }
    100% { transform: translateY(-200px) scale(1); opacity: 0; }
}

/* Peixes e criaturas flutuantes */
.header-sea-background .sea-creature-floating {
    position: absolute;
    font-size: 2rem;
    animation: swim 8s infinite ease-in-out;
}

@keyframes swim {
    0%, 100% { transform: translateY(0) rotate(0); }
    25% { transform: translateY(-10px) rotate(5deg); }
    50% { transform: translateY(0) rotate(0); }
    75% { transform: translateY(10px) rotate(-5deg); }
}

/* Plantas no fundo */
.header-sea-background .sea-plant {
    position: absolute;
    width: 10px;
    background: linear-gradient(to top, #0b3d91, #1e8cff);
    border-radius: 5px;
    animation: sway 4s infinite ease-in-out alternate;
}

@keyframes sway {
    0% { transform: rotate(0deg); }
    50% { transform: rotate(10deg); }
    100% { transform: rotate(-10deg); }
}

/* Baleia animada */
.header-sea-background .whale {
    position: absolute;
    font-size: 3rem;
    bottom: 30px;
    left: -10%;
    animation: whale-swim 20s linear infinite;
    opacity: 0.8;
}

@keyframes whale-swim {
    0% { left: -10%; transform: translateY(0) scale(1); }
    50% { left: 110%; transform: translateY(-20px) scale(1.1); }
    100% { left: -10%; transform: translateY(0) scale(1); }
}

/* Ajusta o header para que os elementos fiquem acima do fundo */
header {
    position: relative;
}
.header-content {
    position: relative;
    z-index: 1;
}

.btn-music {
    all: unset; /* remove TODOS os estilos nativos do botão */
    display: inline-block;

    background-color: transparent;
    border: 1px solid #ffdd66;
    color: #ffdd66;
    font-size: 0.6rem;
    font-weight: 600;
    padding: 8px 15px;
    border-radius: 20px;
    cursor: pointer;
    text-align: center;

    transition: all 0.3s ease;
}

.btn-music:hover,
.btn-music:active {
    background-color: #ffdd66;
    color: #333;
}