/* General Variables */
:root {
    --primary-color: #0073aa;
    --hover-color: #005177;
    --border-radius: 8px;
    --transition-speed: 0.4s;
    --transition-ease: cubic-bezier(0.25, 0.1, 0.25, 1);
    --light-bg: #f9f9f9;
    --text-color: #333;
    --text-muted: #666;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover-color: rgba(0, 0, 0, 0.15);
    --form-bg: #fff;
}

/* General Styles */
.event-advocacy-poster {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 10px var(--shadow-color);
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Poster Form Styles */
.poster-form {
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--form-bg), var(--light-bg));
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 10px var(--shadow-color);
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 550px;
}

.poster-form input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--primary-color);
    border-radius: 6px;
    font-size: 16px;
    color: var(--text-color);
    background-color: var(--form-bg);
    box-shadow: inset 0 1px 3px var(--shadow-color);
    transition: border-color var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
    font-weight: bold;
}

.poster-form input[type="file"]:focus {
    border-color: var(--hover-color);
    box-shadow: 0 0 8px var(--primary-color);
    background-color: #eef7ff;
    outline: none;
}

.poster-form button {
    background: linear-gradient(90deg, var(--primary-color), var(--hover-color));
    color: #fff;
    border: none;
    cursor: pointer;
    align-self: flex-start;
    padding: 12px 15px;
    box-shadow: 0 4px 8px var(--shadow-color);
    transition: background var(--transition-speed) var(--transition-ease), transform var(--transition-speed) var(--transition-ease);
}

.poster-form button:hover {
    background: linear-gradient(90deg, var(--hover-color), var(--primary-color));
    transform: translateY(-2px);
}

/* Template Preview Styles */
.template-preview {
    width: 500px;
    position: relative;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px var(--shadow-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.template-preview img,
#poster-canvas {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Filter Styles */
#poster-filter {
    width: 100%;
    max-width: 300px;
    padding: 12px;
    margin-bottom: 20px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background-color: #fff;
    box-shadow: 0 1px 3px var(--shadow-color);
    transition: box-shadow var(--transition-speed) var(--transition-ease);
}

#poster-filter:focus {
    box-shadow: 0 0 5px var(--primary-color);
    outline: none;
}

/* Poster Result Styles */
.poster-result {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    max-width: 550px;
}

.poster-url-input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.copy-url {
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color var(--transition-speed) var(--transition-ease);
    box-shadow: 0 3px 6px var(--shadow-color);
}

.copy-url:hover {
    background-color: var(--hover-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .poster-form,
    .poster-result {
        max-width: 100%;
    }

    .poster-form button {
        align-self: stretch;
    }
}

@media (max-width: 480px) {
    .event-advocacy-poster {
        padding: 10px;
    }

    .poster-form {
        padding: 15px;
    }

    .poster-form button,
    .copy-url {
        width: 100%;
        justify-content: center;
        padding: 12px 0;
        font-size: 16px;
    }
}

.poster-instructions {
    background-color: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    padding: 20px 25px;
    margin-bottom: 25px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.poster-instructions h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.poster-instructions ol {
    margin: 0;
    padding-left: 20px;
}

.poster-instructions li {
    margin-bottom: 8px;
    color: var(--text-color);
    line-height: 1.4;
}

.poster-instructions .image-requirements {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #dee2e6;
    font-size: 0.9em;
    color: var(--text-muted);
}

.poster-instructions .image-requirements strong {
    color: var(--text-color);
}

/* Responsive adjustments */
@media (max-width: 480px) {
    .poster-instructions {
        padding: 15px;
    }
    
    .poster-instructions h3 {
        font-size: 1.1em;
    }
    
    .poster-instructions ol {
        padding-left: 15px;
    }
}