/*
 * Unified Button System
 * Base class: sth-button (defaults to primary style, default size)
 * Modifiers: sth-button-small, sth-button-secondary, sth-button-success, sth-button-danger, sth-button-warning
 * Icon buttons: sth-icon-button with optional modifiers
 */

/* ===== BASE BUTTON STYLES ===== */

/* Default button: primary filled style */
.sth-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: bold;
    color: var(--background-light);
    background-color: var(--primary-color);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
}

.sth-button:hover {
    background-color: var(--primary-hover-color);
}

.sth-button:disabled {
    background-color: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ===== SIZE MODIFIERS ===== */

.sth-button-small {
    font-size: 0.9rem;
    padding: 0.5rem 0.7rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
}

/* ===== STYLE MODIFIERS ===== */

/* Secondary: border-only style (transparent background) */
.sth-button-secondary {
    font-weight: bold;
    border: 2px solid var(--primary-color);
    border-radius: 4px;
    background-color: transparent;
    color: var(--primary-color);
    padding: 0.5rem 1rem;
}

.sth-button-secondary:hover {
    background-color: var(--primary-color);
    color: var(--background-light);
}

/* Small secondary buttons need adjusted padding */
.sth-button-small.sth-button-secondary {
    padding: 0.5rem 0.7rem;
}

/* ===== COLOR MODIFIERS ===== */

/* Success: green color for positive actions */
.sth-button-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    color: var(--background-light);
}

.sth-button-success:hover {
    background-color: var(--primary-hover-color);
}

.sth-button-secondary.sth-button-success {
    background-color: transparent;
    color: var(--success-color);
    border-color: var(--success-color);
}

.sth-button-secondary.sth-button-success:hover {
    background-color: var(--text-color);
    color: var(--text-light);
}

/* Danger: red color for destructive actions */
.sth-button-danger {
    background-color: var(--error-color);
    border-color: var(--error-color);
    color: var(--background-light);
}

.sth-button-danger:hover {
    background-color: var(--error-color);
}

.sth-button-secondary.sth-button-danger {
    background-color: transparent;
    color: var(--error-color);
    border-color: var(--error-color);
}

.sth-button-secondary.sth-button-danger:hover {
    background-color: var(--error-color);
    color: var(--background-light);
}

/* Warning: warning color for archive-type actions */
.sth-button-warning {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
    color: var(--warning-text);
}

.sth-button-warning:hover {
    background-color: var(--warning-color);
}

.sth-button-secondary.sth-button-warning {
    background-color: transparent;
    color: var(--error-color);
    border-color: var(--error-color);
}

.sth-button-secondary.sth-button-warning:hover {
    background-color: var(--error-color);
    color: var(--background-light);
}

/* ===== ICON BUTTONS ===== */

.sth-icon-button {
    width: 60px;
    height: 60px;
    border: 2px solid #ddd;
    border-radius: 12px;
    background: white;
    cursor: pointer;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.sth-icon-button:hover {
    border-color: var(--color-primary, #0066cc);
    transform: scale(1.05);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.sth-icon-button:active {
    transform: scale(0.95);
}

.sth-icon-button .avatar-btn-icon {
    display: block;
    line-height: 1;
}

/* Special randomize button styling */
.sth-icon-button-randomize {
    border-color: #ff6b6b;
    background: linear-gradient(135deg, #ff6b6b, #ff8e8e);
    color: white;
}

.sth-icon-button-randomize:hover {
    border-color: #ff4545;
    background: linear-gradient(135deg, #ff4545, #ff6b6b);
    box-shadow: 0 4px 12px rgba(255, 107, 107, 0.4);
}

.sth-icon-button-randomize .avatar-btn-icon {
    filter: grayscale(0);
}

/* Responsive sizing for icon buttons */
@media (max-width: 768px) {
    .sth-icon-button {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }
}

/* ===== SPECIAL CONTEXTS ===== */

/* Avatar editor actions */
.avatar-editor-actions .sth-button {
    width: 100%;
    text-align: center;
    padding: 12px 20px;
}

/* Form actions */
.form-actions .sth-button {
    margin-right: 1rem;
}

/* ===== PRIMARY STYLE (kept for specific contexts) ===== */
.sth-button-primary {
    background-color: var(--primary-color);
    color: var(--background-light);
}

.sth-button-primary:hover {
    background-color: var(--primary-hover-color);
}