/* ===== Reusable Button Classes ===== */
.btn-primary {
    padding: var(--spacing-md) var(--spacing-2xl);
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-success);
    color: var(--color-text-black);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.btn-primary:hover { background: var(--color-success-hover); }
.btn-primary:disabled {
    background: var(--color-disabled);
    color: var(--color-disabled-text);
    cursor: not-allowed;
}

.btn-danger {
    padding: var(--spacing-md) var(--spacing-2xl);
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-danger);
    color: var(--color-text-white);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.btn-danger:hover { background: var(--color-danger-hover); }

.btn-secondary {
    padding: var(--spacing-md) var(--spacing-2xl);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    background: var(--color-bg-button);
    color: var(--color-accent-tertiary);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.btn-secondary:hover {
    background: var(--color-bg-button-hover);
    border-color: var(--color-border-tertiary);
    color: var(--color-accent-quaternary);
}

/* ===== Form Controls ===== */
.form-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    background: var(--color-bg-input);
    color: var(--color-text-primary);
    font-size: var(--font-size-md);
    outline: none;
}
.form-input:focus { border-color: var(--color-accent-primary); }
.form-input::placeholder { color: var(--color-text-dark); }

.form-row {
    display: flex;
    gap: var(--spacing-md);
}

/* ===== Collapsible Sections ===== */
.section-toggle {
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-primary);
    padding-top: var(--spacing-lg);
}

.section-toggle-btn {
    color: var(--color-accent-secondary);
    font-size: var(--font-size-md);
    cursor: pointer;
    user-select: none;
}
.section-toggle-btn:hover { color: var(--color-accent-secondary-hover); }

.section-form {
    margin-top: var(--spacing-lg);
}

.status-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--spacing-md);
}

/* ===== Legacy ID Selectors (for backward compatibility) ===== */
#import-follows, #interpolate-section, #draw-section, #filter-section, #groups-section {
    margin-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-primary);
    padding-top: var(--spacing-lg);
}
#midpoint-section { margin-top: var(--spacing-2xl); }
#import-toggle, #interpolate-toggle, #draw-toggle, #filter-toggle, #groups-toggle {
    color: var(--color-accent-secondary);
    font-size: var(--font-size-md);
    cursor: pointer;
    user-select: none;
}
#import-toggle:hover, #interpolate-toggle:hover, #draw-toggle:hover, #filter-toggle:hover, #groups-toggle:hover {
    color: var(--color-accent-secondary-hover);
}
#import-form, #interpolate-form, #draw-form, #filter-form, #groups-form { margin-top: var(--spacing-lg); }
#import-form .import-row, #interpolate-form .import-row, #draw-form .import-row, #filter-form .import-row, #groups-form .import-row {
    display: flex;
    gap: var(--spacing-md);
}
#import-handle, #interpolate-count, #midpoint-count, #surrounding-count, #list-name, #list-url, #filter-follower-count {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    background: var(--color-bg-input);
    color: var(--color-text-primary);
    font-size: var(--font-size-md);
    outline: none;
}
#import-handle:focus, #interpolate-count:focus, #midpoint-count:focus, #surrounding-count:focus, #list-name:focus, #list-url:focus, #filter-follower-count:focus {
    border-color: var(--color-accent-primary);
}
#import-handle::placeholder, #interpolate-count::placeholder, #midpoint-count::placeholder, #surrounding-count::placeholder, #list-name::placeholder, #list-url::placeholder, #filter-follower-count::placeholder {
    color: var(--color-text-dark);
}
#import-btn, #import-list-btn, #preview-path-btn, #create-list-btn, #find-midpoint-btn, #find-surrounding-btn, #apply-filter-btn {
    padding: var(--spacing-md) var(--spacing-2xl);
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-success);
    color: var(--color-text-black);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
#import-btn:hover, #import-list-btn:hover, #preview-path-btn:hover, #create-list-btn:hover, #find-midpoint-btn:hover, #find-surrounding-btn:hover, #apply-filter-btn:hover {
    background: var(--color-success-hover);
}
#import-btn:disabled, #import-list-btn:disabled, #preview-path-btn:disabled, #create-list-btn:disabled, #find-midpoint-btn:disabled, #find-surrounding-btn:disabled, #apply-filter-btn:disabled {
    background: var(--color-disabled);
    color: var(--color-disabled-text);
    cursor: not-allowed;
}
#clear-path-btn, #clear-midpoint-btn, #clear-surrounding-btn {
    padding: var(--spacing-md) var(--spacing-2xl);
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-danger);
    color: var(--color-text-white);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
#clear-path-btn:hover, #clear-midpoint-btn:hover, #clear-surrounding-btn:hover {
    background: var(--color-danger-hover);
}
#groups-form button {
    padding: var(--spacing-md) var(--spacing-2xl);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    background: var(--color-bg-button);
    color: var(--color-accent-tertiary);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
#groups-form button:hover {
    background: var(--color-bg-button-hover);
    border-color: var(--color-border-tertiary);
    color: var(--color-accent-quaternary);
}
#import-status, #list-import-status, #interpolate-status, #filter-status {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--spacing-md);
}
#interpolate-preview, #midpoint-preview, #surrounding-preview {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-preview-path-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-preview-path-border);
}
#interpolate-preview:empty, #midpoint-preview:empty, #surrounding-preview:empty {
    display: none;
}
#midpoint-preview {
    background: var(--color-preview-midpoint-bg);
    border: 1px solid var(--color-preview-midpoint-border);
}
#surrounding-preview {
    background: var(--color-preview-surrounding-bg);
    border: 1px solid var(--color-preview-surrounding-border);
}
#sel-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}
#sel-controls:empty {
    display: none;
}
.sel-mode-btn {
    padding: var(--spacing-xs) var(--spacing-lg);
    border: 1px solid var(--color-border-checkbox);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-xs);
    cursor: pointer;
}
select.sel-mode-btn {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    padding-right: var(--spacing-xl);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
}
.sel-mode-btn:hover {
    border-color: var(--color-accent-secondary);
    color: var(--color-text-secondary);
}
.sel-mode-btn.active {
    border-color: var(--color-accent-selection);
    color: var(--color-accent-selection);
    background: var(--color-selection-bg);
}

/* Settings */
#settings-btn {
    background: var(--color-bg-transparent);
    border: none;
    color: var(--color-text-tertiary);
    width: var(--height-button-sm);
    height: var(--height-button-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-3xl);
    display: flex;
    align-items: center;
    justify-content: center;
}
#settings-btn:hover {
    color: var(--color-text-white);
}
#info-btn {
    background: var(--color-bg-transparent);
    color: var(--color-text-tertiary);
    text-decoration: none;
    width: var(--height-button-sm);
    height: var(--height-button-sm);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}
#info-btn:hover {
    color: var(--color-text-white);
}

/* Auth */
#auth-btn {
    background: var(--color-bg-transparent);
    border: none;
    color: var(--color-success);
    padding: var(--spacing-lg) var(--spacing-3xl);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-md);
    font-weight: 600;
    white-space: nowrap;
}
#auth-btn:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-success-hover);
}
#auth-btn.authenticated {
    color: var(--color-success);
}
.auth-tab {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-2xl);
    border: 1px solid var(--color-border-primary);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
}
.auth-tab:hover {
    border-color: var(--color-border-checkbox);
    color: var(--color-text-secondary);
}
.auth-tab.active {
    background: var(--color-success);
    color: var(--color-text-black);
    border-color: var(--color-success);
    font-weight: 600;
}
#auth-oauth-btn {
    width: 100%;
    padding: var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-success);
    color: var(--color-text-black);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    margin-top: var(--spacing-sm);
}
#auth-oauth-btn:hover {
    background: var(--color-success-hover);
}
#auth-login-btn, #auth-logout-btn {
    width: 100%;
    padding: var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    background: var(--color-success);
    color: var(--color-text-black);
    font-size: var(--font-size-md);
    font-weight: 600;
    cursor: pointer;
    margin-top: var(--spacing-sm);
}
#auth-login-btn:hover {
    background: var(--color-success-hover);
}
#auth-logout-btn {
    background: var(--color-danger);
}
#auth-logout-btn:hover {
    background: var(--color-danger-hover);
}

/* Cluster Management */
.cluster-tab {
    transition: all var(--transition-normal) var(--transition-ease);
}

.cluster-tab:hover {
    opacity: 0.8;
}

.cluster-tab.active {
    box-shadow: var(--shadow-glow);
}

/* Draw Mode */
.draw-tool-btn {
    flex: 1;
    padding: 6px 8px;
    font-size: 11px;
    background: var(--color-bg-button);
    border: 1px solid var(--color-border-secondary);
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.draw-tool-btn:hover {
    background: var(--color-bg-input);
    border-color: var(--color-accent-primary);
}

.draw-tool-btn.active {
    background: var(--color-accent-primary);
    color: var(--color-text-black);
    border-color: var(--color-accent-primary);
    font-weight: 600;
}

.draw-color-picker {
    width: 60px;
    height: 32px;
    background: var(--color-bg-button);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color var(--transition-normal);
    position: relative;
}

.draw-color-picker:hover {
    border-color: var(--color-accent-primary);
}

.color-swatches {
    position: absolute;
    top: 36px;
    left: 0;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-secondary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(6, 24px);
    gap: var(--spacing-sm);
    z-index: 20;
    box-shadow: var(--shadow-dark-md);
}

.color-swatch {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
}

.color-swatch:hover {
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.color-swatch.active {
    border-color: var(--color-text-white);
    box-shadow: var(--shadow-glow-white);
}

.draw-control-btn {
    flex: 1;
    padding: 6px 12px;
    font-size: 12px;
    background: var(--color-bg-button);
    border: 1px solid var(--color-border-secondary);
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.draw-control-btn:hover {
    background: var(--color-bg-input);
    border-color: var(--color-accent-primary);
    color: var(--color-text-primary);
}

.draw-select-btn {
    background: var(--color-accent-primary);
    color: var(--color-text-black);
    border-color: var(--color-accent-primary);
    font-weight: 600;
}

.draw-select-btn:hover {
    background: var(--color-success-hover);
    border-color: var(--color-success-hover);
    color: var(--color-text-black);
}

/* Clear search button hover effect */
#clear-search-btn:hover {
    color: var(--color-text-white) !important;
}