/**
 * RMRR Forms - UI Components
 * Reusable component styles
 */

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

/* Base button styles */
button,
.btn {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    padding: var(--space-md) var(--space-xl);
    min-height: var(--touch-target-min);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    text-decoration: none;
    white-space: nowrap;
    
    /* Improve tap target on mobile */
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Shared Thumbnail Remove Button (red circular X) */
.photo-remove,
.thumbnail-remove-btn {
    position: absolute;
    top: 6px;
    right: 6px;

    /* force fixed shape */
    width: 28px;
    height: 28px;
    min-width: 28px;
    min-height: 28px;
    max-width: 28px;
    max-height: 28px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: none;
    border-radius: 50%;

    font-size: 22px;
    font-weight: bold;
    line-height: 0;
    padding: 0;

    /* prevent parent scaling from distorting circle */
    box-sizing: content-box;
    transform: none !important;
}


button:disabled,
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button variants */

/* Blue - Navigation/UI actions (changing pages, adding rows) */
.btn-primary,
button:not([class*="btn-"]):not(.modal-close-btn):not(.photo-remove) {
    background: var(--color-btn-primary);
    color: var(--color-text-inverse);
}

.btn-primary:hover,
button:not([class*="btn-"]):hover {
    background: var(--color-btn-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active,
button:not([class*="btn-"]):active {
    background: var(--color-btn-primary-active);
    transform: translateY(0);
}

/* Gray - Secondary actions (cancel, back) */
.btn-secondary {
    background: var(--color-btn-secondary);
    color: var(--color-text-inverse);
}

.btn-secondary:hover {
    background: var(--color-btn-secondary-hover);
}

.btn-secondary:active {
    background: var(--color-btn-secondary-active);
}

/* Green - Data processing (submit, done scanning, update) */
.btn-success {
    background: var(--color-btn-success);
    color: var(--color-text-inverse);
}

.btn-success:hover {
    background: var(--color-btn-success-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-success:active {
    background: var(--color-btn-success-active);
    transform: translateY(0);
}

/* Red - Destructive actions (delete, clear) */
.btn-danger {
    background: var(--color-btn-danger);
    color: var(--color-text-inverse);
}

.btn-danger:hover {
    background: var(--color-btn-danger-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-danger:active {
    background: var(--color-btn-danger-active);
    transform: translateY(0);
}

/* Button sizes */
.btn-sm {
    font-size: var(--font-size-sm);
    padding: var(--space-sm) var(--space-md);
    min-height: 36px;
}

.btn-lg {
    font-size: var(--font-size-lg);
    padding: var(--space-lg) var(--space-2xl);
    min-height: 52px;
}

/* Full width button */
.btn-block {
    width: 100%;
    display: flex;
}

/* ============================================
   FORMS
   ============================================ */

/* Form groups */
.form-group {
    margin-bottom: var(--space-xl);
}

.form-row {
    display: grid;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

/* Labels */
label {
    display: block;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

/* Input fields */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="datetime-local"],
textarea,
select {
    width: 100%;
    min-height: var(--touch-target-min);
    padding: var(--space-md);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background: var(--color-bg-container);
    border: 1px solid var(--color-border-medium);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-base),
                box-shadow var(--transition-base);
    
    /* Mobile optimizations */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* Focus states */
input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--color-btn-primary);
    box-shadow: 0 0 0 3px rgba(33, 148, 221, 0.1);
}

html.dark-mode input:focus,
html.dark-mode textarea:focus,
html.dark-mode select:focus {
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
}

/* Disabled state */
input:disabled,
textarea:disabled,
select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--color-bg-elevated);
}

/* Placeholder text */
::placeholder {
    color: var(--color-text-muted);
    opacity: 1;
}

/* Select dropdown arrow */
select {
    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='%236b7280' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) center;
    padding-right: var(--space-3xl);
    cursor: pointer;
}

/* Textarea specific */
textarea {
    min-height: 100px;
    resize: vertical;
}

/* ============================================
   VALIDATION STATES
   ============================================ */

/* Error state */
.form-group.has-error input,
.form-group.has-error textarea,
.form-group.has-error select,
input.error,
textarea.error,
select.error {
    border-color: var(--color-error);
    border-width: 2px;
    box-shadow: 0 0 0 3px rgba(255, 59, 48, 0.15);
}

.error-message,
.validation-error {
    display: block;
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
    line-height: var(--line-height-normal);
}

/* Error alert box */
.error-alert {
    background: var(--color-error-bg);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    color: var(--color-error);
    font-size: var(--font-size-sm);
    display: none;
}

.error-alert.show {
    display: block;
}

/* Success state */
.form-group.has-success input,
.form-group.has-success textarea,
.form-group.has-success select {
    border-color: var(--color-success);
}

.success-message {
    display: block;
    color: var(--color-success);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* Warning state */
.warning-message {
    display: block;
    color: var(--color-warning);
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* ============================================
   COLLAPSIBLE SECTIONS
   ============================================ */
.collapsible-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: var(--touch-target-min);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.collapsible-toggle:hover {
    background: var(--color-bg-page);
}

.collapsible-toggle:active {
    transform: scale(0.98);
}

.collapsible-toggle .toggle-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-base);
}

.collapsible-toggle .toggle-icon::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-top: 8px solid var(--color-text-primary);
    transition: transform var(--transition-base);
}

.collapsible-toggle .toggle-icon.open::after {
    transform: rotate(180deg);
}

.collapsible-toggle + .collapsible-content {
    overflow: hidden;
    transition: max-height var(--transition-slow);
    padding: var(--space-lg);
    border: 1px solid var(--color-border-light);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.collapsible-toggle + .collapsible-content.hidden {
    display: none;
}

/* ============================================
   TOGGLE SWITCHES
   ============================================ */
.toggle-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) 0;
    gap: var(--space-lg);
}

.toggle-info {
    flex: 1;
}

.toggle-label {
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    margin-bottom: var(--space-xs);
}

.toggle-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.toggle-switch-container {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 26px;
    flex-shrink: 0;
}

.toggle-switch-container input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.toggle-switch {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-border-medium);
    transition: var(--transition-base);
    border-radius: var(--radius-full);
}

.toggle-switch:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 2px;
    bottom: 2px;
    background-color: var(--color-bg-container);
    transition: var(--transition-base);
    border-radius: 50%;
}

input:checked + .toggle-switch {
    background-color: var(--color-btn-primary);
}

input:checked + .toggle-switch:before {
    transform: translateX(24px);
}

input:focus + .toggle-switch {
    box-shadow: 0 0 0 3px rgba(33, 148, 221, 0.2);
}

/* Dark mode toggle specifically */
.dark-mode-toggle {
    position: fixed;
    top: var(--space-xl);
    right: var(--space-xl);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    cursor: pointer;
    user-select: none;
    z-index: var(--z-sticky);
    -webkit-tap-highlight-color: transparent;
}

/* ============================================
   LISTS & LINKS
   ============================================ */
.forms-list,
.menu-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.forms-list li {
    margin-bottom: var(--space-lg);
}

.forms-list a {
    display: block;
    padding: var(--space-xl) var(--space-2xl);
    background: var(--color-btn-primary);
    color: var(--color-text-inverse);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    box-shadow: var(--shadow-lg);
    min-height: var(--touch-target-min);
    display: flex;
    align-items: center;
}

.forms-list a:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.forms-list a:active {
    transform: translateY(0);
}

/* ============================================
   LOADING STATES
   ============================================ */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* ============================================
   CARDS & CONTAINERS
   ============================================ */
.card {
    background: var(--color-bg-container);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.card-elevated {
    box-shadow: var(--shadow-lg);
}

.card:hover {
    box-shadow: var(--shadow-xl);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Spacing utilities */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }

.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-btn-primary); }
.text-danger { color: var(--color-error); }
.text-success { color: var(--color-success); }

/* Display utilities */
.hidden { display: none !important; }
.block { display: block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }

/* Gap utilities */
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 360px) {
    .btn {
        padding: var(--space-sm) var(--space-md);
        font-size: var(--font-size-sm);
    }
}

@media (min-width: 768px) {
    .form-row-desktop {
        grid-template-columns: repeat(2, 1fr);
    }
}