:root {
    --color-bg: #0a0f1f;
    --color-bg-alt: #0d132b;
    --color-text: #e8e8ff;
    --color-accent: #00eaff;
    --color-placeholder: #7af0ffaa;
    --color-like-text: #00141f;
    --color-btn-text: #00101a;
    --color-delete: #ff0044;
    --color-cancel: #2b2b2b;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Orbitron', sans-serif;
    background: radial-gradient(circle at top, var(--color-bg), #000000);
    color: var(--color-text);
}

.app-container {
    width: 90%;
    max-width: 800px;
    margin: auto;
    padding-top: 30px;
}

.app-header {
    position: relative;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-bottom: 20px;
    height: 50px;
}

.title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 2.3rem;
    color: var(--color-accent);
    text-shadow: 0 0 15px var(--color-accent);
    margin: 0;
    width: max-content;
}

.logout-btn {
    background: transparent;
    border: 1px solid var(--color-delete);
    color: var(--color-delete);
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    transition: 0.3s;
    font-size: 0.9rem;
    z-index: 10;
}

.logout-btn:hover {
    background: var(--color-delete);
    color: white;
    box-shadow: 0 0 10px var(--color-delete);
}

.create-post {
    background: var(--color-bg-alt);
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 0 20px var(--color-accent)55;
    margin-bottom: 20px;
}

#postText {
    width: 100%;
    background: #0f1624;
    color: var(--color-text);
    border: 1px solid var(--color-accent);
    border-radius: 10px;
    padding: 10px;
    resize: none;
    outline: none;
    font-size: 14px;
    display: block;
    box-sizing: border-box;
    margin-bottom: 10px;
}

#postText::placeholder {
    color: var(--color-placeholder);
    text-shadow: 0 0 8px var(--color-accent)66;
}

#publishBtn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 10px;
    background: var(--color-accent);
    color: var(--color-btn-text);
    font-weight: bold;
    cursor: pointer;
    font-size: 1rem;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}

#publishBtn:hover {
    background: #00b8cc;
}

#publishBtn.loading {
    background: var(--color-cancel);
    color: transparent !important;
    pointer-events: none;
}

#publishBtn.loading::after {
    content: "Publicando...";
    color: var(--color-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: bold;
    z-index: 2;
}

#publishBtn.loading::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: var(--color-accent);
    animation: loadingFill 1s ease-in-out forwards;
    z-index: 1;
}

@keyframes loadingFill {
    0% {
        width: 0%;
    }

    100% {
        width: 100%;
    }
}

.filters {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 10px;
}

.filters select {
    width: 180px;
    padding: 6px 10px;
    font-size: 0.85rem;
    border-radius: 8px;
    background: #0b1a2dcc;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    text-align: center;
}

.post {
    background: var(--color-bg-alt);
    margin-top: 15px;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 0 15px var(--color-accent)55;
}

.actions {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    gap: 10px;
}

.like-btn {
    background: linear-gradient(135deg, #00eaff, #00b8cc);
    padding: 6px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    color: #00101a;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 3px 8px rgba(0, 234, 255, 0.4);
}

.like-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 234, 255, 0.5);
}

.edit-btn,
.delete-btn {
    background: none;
    border: none;
    border-radius: 8px;
    padding: 5px 12px;
    font-weight: bold;
    cursor: pointer;
    color: var(--color-accent);
    transition: all 0.3s ease;
}

.edit-btn:hover {
    background: var(--color-accent);
    color: var(--color-btn-text);
    box-shadow: 0 3px 8px var(--color-accent)55;
    transform: translateY(-2px);
}

.delete-btn:hover {
    background: var(--color-delete);
    color: #fff;
    box-shadow: 0 3px 8px var(--color-delete)55;
    transform: translateY(-2px);
}

.modal-overlay,
.login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.hidden {
    display: none;
}

.modal,
.login-box {
    background: var(--color-bg-alt);
    padding: 20px;
    width: 85%;
    max-width: 400px;
    border-radius: 12px;
    box-shadow: 0 0 20px var(--color-accent)aa;
    text-align: center;
}

.modal textarea {
    width: 100%;
    height: 100px;
    background: #11182f;
    border: none;
    border-radius: 10px;
    color: var(--color-text);
    margin-bottom: 15px;
    padding: 10px;
    box-sizing: border-box;
}

.modal button,
.login-box button {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    font-weight: bold;
    font-size: 1rem;
}

.modal .save {
    background: var(--color-accent);
    color: var(--color-btn-text);
}

.modal .cancel {
    background: var(--color-cancel);
    color: #ddd;
}

.modal .delete {
    background: var(--color-delete);
    color: white;
}

.login-box {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.login-box label {
    font-size: 1.1rem;
    margin-bottom: -10px;
}

.login-box input {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--color-accent);
    background: #0f1624;
    color: var(--color-text);
    outline: none;
    font-size: 1rem;
    box-sizing: border-box;
}

.login-box button {
    background: var(--color-accent);
    color: var(--color-btn-text);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.app-footer {
    text-align: center;
    padding: 15px 0;
    background: var(--color-bg-alt);
    color: var(--color-placeholder);
    font-size: 0.85rem;
    border-top: 1px solid var(--color-accent)33;
    margin-top: 30px;
    box-shadow: 0 -2px 15px var(--color-accent)22;
}

.btn-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.3);
    border-top: 3px solid #00101a;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    display: inline-block;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}