@font-face {
    font-family: 'Advent Sans Logo';
    src: url('fonts/AdventSans-Logo.otf') format('opentype');
    font-weight: normal;
    font-style: normal;
}

/* Focus outlines for WCAG keyboard accessibility */
button:focus-visible,
input:focus-visible {
    outline: 2px solid #003b5c !important;
    outline-offset: 2px !important;
}

/* Core Styles for Polish Logo Generator */
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f8fafc;
    color: #1e293b;
    margin: 0;
    padding: 0;
}

/* Choice Buttons */
.choice-button {
    border: 1px solid #cbd5e1;
    background-color: #ffffff;
    color: #475569;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.choice-button:hover {
    background-color: #f1f5f9;
    border-color: #94a3b8;
}

.choice-button.is-selected {
    background-color: #003b5c;
    color: #ffffff;
    border-color: #003b5c;
}

/* Layout selection buttons */
.layout-button {
    border: 1px solid #e2e8f0;
    background-color: #ffffff;
    color: #1e293b;
    padding: 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.layout-button:hover {
    border-color: #cbd5e1;
    background-color: #f8fafc;
}

.layout-button.is-selected {
    border-color: #003b5c;
    box-shadow: 0 0 0 2px #003b5c;
}

/* Color selection buttons */
.color-button {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 2px;
    transition: all 0.2s ease;
    background: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.color-button.is-selected {
    border-color: #003b5c;
}

.color-button span {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 50%;
}

/* Preview Frame */
.preview-frame-light {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
}

.preview-frame-dark {
    background-color: #003b5c;
    border: 1px solid #00273e;
}

/* Download Buttons */
.download-button-primary {
    background-color: #003b5c;
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid #003b5c;
}

.download-button-primary:hover {
    background-color: #00273e;
    border-color: #00273e;
}

.download-button-primary:disabled {
    background-color: #cbd5e1;
    border-color: #cbd5e1;
    color: #94a3b8;
    cursor: not-allowed;
}

.download-button-secondary {
    background-color: #ffffff;
    color: #003b5c;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid #003b5c;
}

.download-button-secondary:hover {
    background-color: #f0f7fa;
}

.download-button-secondary:disabled {
    background-color: #ffffff;
    border-color: #e2e8f0;
    color: #cbd5e1;
    cursor: not-allowed;
}

/* Loader spinner */
.loader {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #003b5c;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    display: inline-block;
}

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