:root {
    --primary-color: #6C63FF;
    --secondary-color: #FF6B9D;
    --accent-color: #FFC75F;
    --background-color: #F0F4F8;
    --card-color: #FFFFFF;
    --text-color: #333333;
    --text-muted: #888888;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.12);
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 900px;
    padding: 20px;
}

header {
    text-align: center;
    padding: 30px 0;
    width: 100%;
    background-color: var(--card-color);
    box-shadow: var(--shadow);
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -1px;
}

header p {
    color: var(--text-muted);
    margin-top: 5px;
}

/* --- Page Visibility --- */
.page {
    display: none;
}
.page.active {
    display: block;
}

/* --- Navigation Buttons --- */
.nav-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}
.nav-btn {
    padding: 12px 25px;
    background-color: var(--card-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}
.nav-btn:hover, .nav-btn.active {
    background-color: var(--primary-color);
    color: var(--card-color);
    transform: translateY(-3px);
}

/* --- Dashboard --- */
.fomo-headline {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 30px;
}
.fomo-headline strong {
    color: var(--secondary-color);
    font-size: 1.5rem;
}

.search-bar {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
}
.search-bar input {
    width: 100%;
    max-width: 400px;
    padding: 15px 20px;
    font-size: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 50px;
    transition: border-color 0.3s;
}
.search-bar input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.message-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.message-card {
    background-color: var(--card-color);
    padding: 20px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border-top: 5px solid var(--accent-color);
    position: relative;
    overflow: hidden;
}
.message-card:hover {
    transform: translateY(-5px) scale(1.02);
    box-shadow: var(--shadow-hover);
}
.message-card.open {
    border-top: 5px solid var(--secondary-color);
}

.message-card .placeholder-text {
    color: var(--text-muted);
    font-style: italic;
}

.message-card .message-teaser {
    display: none;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
    font-style: italic;
    color: #555;
}

.message-card .read-more-link {
    display: none;
    margin-top: 10px;
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
}
.message-card .read-more-link:hover {
    text-decoration: underline;
}

.message-card .meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 15px;
}
.message-card .meta .views {
    font-weight: 600;
    color: var(--primary-color);
}
.message-card .meta .sender-anon {
    font-style: italic;
}

/* --- Compose Form --- */
.compose-form {
    background-color: var(--card-color);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s;
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}
.form-group textarea {
    resize: vertical;
    min-height: 150px;
}
.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}
.checkbox-group input[type="checkbox"] {
    width: auto;
}

.btn-primary {
    width: 100%;
    padding: 18px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}
.btn-primary:hover {
    background-color: #e55a86;
    transform: scale(1.03);
}
.btn-primary:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    transform: scale(1);
}

.countdown-timer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* --- Detail Page --- */
.detail-card {
    background-color: var(--card-color);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    max-width: 700px;
    margin: 0 auto;
    border-left: 10px solid var(--primary-color);
}
.detail-card h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
}
.detail-card .detail-item {
    margin-bottom: 15px;
}
.detail-item strong {
    color: var(--secondary-color);
}
.detail-item .message-content {
    margin-top: 10px;
    padding: 15px;
    background-color: var(--background-color);
    border-radius: 10px;
    font-style: italic;
}
.detail-card .meta-info {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}
.share-btn {
    padding: 8px 15px;
    background-color: var(--accent-color);
    color: var(--text-color);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
}

/* --- Spotify Search Results --- */
.song-results {
    margin-top: 10px;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background-color: #fff;
}

.song-result-item {
    display: flex;
    align-items: center;
    padding: 10px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.song-result-item:hover {
    background-color: #f0f4f8;
}
.song-result-item img {
    width: 50px;
    height: 50px;
    border-radius: 5px;
    margin-right: 10px;
}
.song-result-item .song-info {
    display: flex;
    flex-direction: column;
}
.song-result-item .song-info span {
    font-size: 0.9em;
    color: var(--text-muted);
}

/* --- Responsive Design --- */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    .compose-form, .detail-card {
        padding: 25px;
    }
}