/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Poppins", sans-serif;
    background-image: url("../image/fond_carnet_d'adresse.jpg"); /* Image de fond */
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: gray; /* Couleur du texte */
}

/* ===== HEADER ===== */
header {
    width: 90%;
    margin: 20px auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: rgba(0, 149, 255, 0.15);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

header img {
    height: 70px;
    width: auto;
    border-radius: 50%;
}

header h1 {
    font-size: 2rem;
    color: #333333;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Bouton "Créer un compte / Se connecter" */
.button {
    background: rgba(255, 255, 255, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 1rem;
    color: #333333;
    cursor: pointer;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    transition: transform 0.3s, box-shadow 0.3s;
}

.button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* ===== MAIN & CONTAINER ===== */
main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1200px;
    background: rgba(0, 149, 255, 0.15);
    border-radius: 20px;
    padding: 40px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    animation: fadeIn 1s ease-out;
}

/* ===== TEXTE & BOUTONS ===== */
.text-content {
    flex: 1;
    text-align: center;
    padding: 20px;
    /* Tout le texte ici hérite de la couleur définie dans body (#333333) */
}

.text-content h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

.text-content p {
    font-size: 30px;
    line-height: 1.5;
    margin-bottom: 20px;
}

.rainbow {
    display: inline-block;
    animation: rainbow 2s ease-in-out infinite;
}

@keyframes rainbow {
    0% {
        color: red;
        transform: scale(1) rotate(0deg);
        text-shadow: 0px 0px 2px red;
    }
    20% {
        color: orange;
        transform: scale(1.2) rotate(3deg);
        text-shadow: 0px 0px 4px orange;
    }
    40% {
        color: yellow;
        transform: scale(0.9) rotate(-3deg);
        text-shadow: 0px 0px 4px yellow;
    }
    60% {
        color: green;
        transform: scale(1.1) rotate(3deg);
        text-shadow: 0px 0px 4px green;
    }
    80% {
        color: blue;
        transform: scale(0.95) rotate(-3deg);
        text-shadow: 0px 0px 4px blue;
    }
    100% {
        color: violet;
        transform: scale(1) rotate(0deg);
        text-shadow: 0px 0px 2px violet;
    }
}

/* From Uiverse.io by InfinityLoopGames */
.glowbutton {
    --glow-color: rgb(176, 252, 255);
    --glow-spread-color: rgba(123, 251, 255, 0.781);
    --enhanced-glow-color: rgb(206, 255, 255);
    --btn-color: rgb(61, 127, 136);
    border: 0.25em solid var(--glow-color);
    padding: 1em 3em;
    color: var(--glow-color);
    font-size: 15px;
    font-weight: bold;
    background-color: var(--btn-color);
    border-radius: 1em;
    outline: none;
    box-shadow: 0 0 1em 0.25em var(--glow-color),
        0 0 4em 1em var(--glow-spread-color),
        inset 0 0 0.75em 0.25em var(--glow-color);
    text-shadow: 0 0 0.5em var(--glow-color);
    position: relative;
    transition: all 0.3s;
}

.glowbutton::after {
    pointer-events: none;
    content: "";
    position: absolute;
    top: 120%;
    left: 0;
    height: 100%;
    width: 100%;
    background-color: var(--glow-spread-color);
    filter: blur(2em);
    opacity: 0.7;
    transform: perspective(1.5em) rotateX(35deg) scale(1, 0.6);
}

.glowbutton:hover {
    color: var(--btn-color);
    background-color: var(--glow-color);
    box-shadow: 0 0 1em 0.25em var(--glow-color),
        0 0 4em 2em var(--glow-spread-color),
        inset 0 0 0.75em 0.25em var(--glow-color);
}

.glowbutton:active {
    box-shadow: 0 0 0.6em 0.25em var(--glow-color),
        0 0 2.5em 2em var(--glow-spread-color),
        inset 0 0 0.5em 0.25em var(--glow-color);
}

/* Conteneur des boutons internes */
.button-container {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

/* Bouton principal */
.main_button {
    background: rgba(255, 255, 255, 0.25);
    border: none;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 1rem;
    color: #333333;
    cursor: pointer;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    transition: background 0.3s, transform 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Effet de survol */
.main_button:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-3px);
}

/* Optionnel : petite touche orange sur le bouton "À propos" par exemple */
.main_button:first-child:hover {
    border: 1px solid #ffa500;
}

/* ===== IMAGE ===== */
.image-content {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column; /* Affiche l'image et le texte l'un sous l'autre */
    align-items: center;
}

.image-content img {
    max-width: 80%; /* Redimensionne le GIF */
    height: auto;
    border-radius: 20px;
    margin-top: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    animation: float 3s ease-in-out infinite;
}

.below-image-text {
    font-size: 20px;
    margin-top: 10px;
    font-style: italic;
    text-align: center;
    width: 100%;
}

/* =======================================
   FOOTER
========================================= */
footer {
    background: rgba(26, 35, 126, 0.8);
    color: #fff;
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

footer nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 20px;
}

footer nav ul li a {
    color: #ffab40;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer nav ul li a:hover {
    text-decoration: underline;
    color: #ffc107;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0);
    }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
    }

    .container {
        flex-direction: column;
        padding: 20px;
    }

    .text-content,
    .image-content {
        padding: 10px;
    }

    .button-container {
        flex-direction: column;
        gap: 10px;
    }

    main {
        flex-direction: column; /* sur écran petit */
    }
}