:root {
    --primary-bg: #1a1a1d;
    --secondary-bg: #2b2d42;
    --card-bg: #4f5d75;
    --text-color: #edf2f4;
    --accent-color: #ef8354;
    --border-color: #8d99ae;
    --gold-color: #ffd700;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

#app-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

header {
    text-align: center;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 20px;
}

header h1 {
    color: var(--accent-color);
    margin-bottom: 10px;
}

main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

h2 {
    color: var(--text-color);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-top: 0;
}

/* Form Styling */
#post-comment-section {
    background-color: var(--secondary-bg);
    padding: 25px;
    border-radius: 8px;
}

#comment-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#comment-content {
    width: 100%;
    min-height: 100px;
    background-color: var(--primary-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    box-sizing: border-box;
}

#comment-content::placeholder {
    color: #b0c0d8;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
}

.form-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

#comment-tip {
    background-color: var(--primary-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 8px;
    width: 100px;
    font-size: 1rem;
}

#submit-button {
    background-color: var(--accent-color);
    color: var(--primary-bg);
    font-weight: bold;
    border: none;
    padding: 12px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-size: 1rem;
}

#submit-button:hover {
    background-color: #d86c3b;
}

#submit-button:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}


/* Comments Section */
#comments-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comment-card {
    background-color: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    gap: 15px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.comment-card:first-child {
    border-color: var(--gold-color);
}

.tip-banner {
    position: absolute;
    top: 15px;
    right: -45px;
    background-color: var(--gold-color);
    color: var(--primary-bg);
    padding: 5px 40px;
    transform: rotate(45deg);
    font-weight: bold;
    font-size: 14px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.comment-author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    flex-shrink: 0;
    border: 2px solid var(--border-color);
}

.comment-main {
    flex-grow: 1;
    min-width: 0;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.comment-author-username {
    font-weight: bold;
    color: var(--text-color);
    font-size: 1.1em;
}

.comment-body {
    line-height: 1.6;
    word-wrap: break-word;
}

.comment-body p:last-child {
    margin-bottom: 0;
}

.comment-body img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 4px;
    margin-top: 10px;
}

.comment-body a {
    color: var(--accent-color);
    text-decoration: underline;
    transition: color 0.3s;
}

.comment-body a:hover {
    color: #d86c3b;
    text-decoration: none;
}

.comment-tip-amount {
    font-size: 1.2em;
    font-weight: bold;
    color: var(--gold-color);
    margin-top: 15px;
}

.comment-tip-amount::before {
    content: '💰 ';
}

/* Loader, Empty and Error States */
.loader {
    border: 5px solid var(--border-color);
    border-top: 5px solid var(--accent-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 40px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.empty-state, .error-state {
    text-align: center;
    padding: 40px;
    background-color: var(--secondary-bg);
    border-radius: 8px;
    color: var(--border-color);
}

.error-state {
    color: #ff6b6b;
}