/**
 * Form Polish Styles
 * Enhanced form styling system for consistent UX across Eyes of Azrael
 * Adds unified validation states, focus indicators, and animations
 */

/* ============================================
   CSS CUSTOM PROPERTIES
   ============================================ */
:root {
    /* Form Colors */
    --form-color-valid: #22c55e;
    --form-color-valid-bg: rgba(34, 197, 94, 0.08);
    --form-color-valid-border: rgba(34, 197, 94, 0.4);

    --form-color-error: #ef4444;
    --form-color-error-bg: rgba(239, 68, 68, 0.08);
    --form-color-error-border: rgba(239, 68, 68, 0.4);

    --form-color-warning: #f59e0b;
    --form-color-warning-bg: rgba(245, 158, 11, 0.08);
    --form-color-warning-border: rgba(245, 158, 11, 0.4);

    --form-color-info: #3b82f6;
    --form-color-info-bg: rgba(59, 130, 246, 0.08);
    --form-color-info-border: rgba(59, 130, 246, 0.4);

    /* Input States */
    --form-input-bg: rgba(0, 0, 0, 0.25);
    --form-input-bg-hover: rgba(0, 0, 0, 0.3);
    --form-input-bg-focus: rgba(0, 0, 0, 0.35);
    --form-input-border: rgba(139, 127, 255, 0.2);
    --form-input-border-hover: rgba(139, 127, 255, 0.35);
    --form-input-border-focus: var(--color-primary, #8b7fff);

    /* Transitions */
    --form-transition-fast: 0.15s ease;
    --form-transition-base: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --form-transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ============================================
   BASE INPUT STYLES
   ============================================ */
input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]):not([type="file"]),
textarea,
select,
.form-input,
.form-textarea,
.form-select,
.ef-input,
.ef-textarea,
.ef-select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--form-input-bg);
    border: 2px solid var(--form-input-border);
    border-radius: 0.75rem;
    color: var(--color-text-primary, #f8f9fa);
    font-size: 1rem;
    font-family: inherit;
    line-height: 1.5;
    transition:
        border-color var(--form-transition-base),
        background-color var(--form-transition-base),
        box-shadow var(--form-transition-base);
    -webkit-appearance: none;
    appearance: none;
}

/* Placeholder styling */
input::placeholder,
textarea::placeholder,
.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted, #6c757d);
    opacity: 1;
    transition: opacity var(--form-transition-fast);
}

input:focus::placeholder,
textarea:focus::placeholder {
    opacity: 0.5;
}

/* ============================================
   HOVER STATE
   ============================================ */
input:not([type="checkbox"]):not([type="radio"]):not([disabled]):hover,
textarea:not([disabled]):hover,
select:not([disabled]):hover,
.form-input:not([disabled]):hover,
.form-textarea:not([disabled]):hover,
.form-select:not([disabled]):hover {
    border-color: var(--form-input-border-hover);
    background: var(--form-input-bg-hover);
}

/* ============================================
   FOCUS STATE
   ============================================ */
input:not([type="checkbox"]):not([type="radio"]):focus,
textarea:focus,
select:focus,
.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--form-input-border-focus);
    background: var(--form-input-bg-focus);
    box-shadow:
        0 0 0 4px rgba(139, 127, 255, 0.15),
        0 0 20px rgba(139, 127, 255, 0.1);
}

/* Focus visible for keyboard navigation */
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
button:focus-visible {
    outline: 2px solid var(--color-primary, #8b7fff);
    outline-offset: 2px;
}

/* ============================================
   VALID STATE
   ============================================ */
input.valid,
input.is-valid,
textarea.valid,
textarea.is-valid,
select.valid,
select.is-valid,
.form-input.valid,
.form-textarea.valid,
.form-select.valid {
    border-color: var(--form-color-valid-border);
    background: var(--form-color-valid-bg);
    padding-right: 2.75rem;
}

input.valid:focus,
input.is-valid:focus,
textarea.valid:focus,
textarea.is-valid:focus,
select.valid:focus,
select.is-valid:focus {
    box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.15);
}

/* Valid checkmark icon */
.is-valid + .valid-icon,
.form-field.is-valid .input-valid-icon,
.ef-field.is-valid .ef-valid-icon {
    display: flex;
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--form-color-valid);
    animation: validIconPop 0.3s var(--form-transition-bounce);
}

@keyframes validIconPop {
    0% {
        opacity: 0;
        transform: translateY(-50%) scale(0) rotate(-180deg);
    }
    70% {
        transform: translateY(-50%) scale(1.2) rotate(10deg);
    }
    100% {
        opacity: 1;
        transform: translateY(-50%) scale(1) rotate(0deg);
    }
}

/* ============================================
   ERROR STATE
   ============================================ */
input.error,
input.is-invalid,
input.has-error,
textarea.error,
textarea.is-invalid,
select.error,
select.is-invalid,
.form-input.error,
.form-textarea.error,
.form-select.error {
    border-color: var(--form-color-error-border);
    background: var(--form-color-error-bg);
}

input.error:focus,
input.is-invalid:focus,
textarea.error:focus,
textarea.is-invalid:focus,
select.error:focus,
select.is-invalid:focus {
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.15);
}

/* Error shake animation */
@keyframes inputShake {
    0%, 100% { transform: translateX(0); }
    10% { transform: translateX(-6px); }
    20% { transform: translateX(6px); }
    30% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    50% { transform: translateX(-3px); }
    60% { transform: translateX(3px); }
    70% { transform: translateX(-2px); }
    80% { transform: translateX(2px); }
}

input.error.shake,
textarea.error.shake,
select.error.shake,
.has-error .form-input,
.has-error .form-textarea,
.has-error .form-select {
    animation: inputShake 0.5s ease-out;
}

/* ============================================
   ERROR MESSAGES
   ============================================ */
.form-error,
.field-error,
.ef-error-text,
.error-message {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.625rem 0.875rem;
    background: var(--form-color-error-bg);
    border: 1px solid var(--form-color-error-border);
    border-radius: 0.5rem;
    color: var(--form-color-error);
    font-size: 0.8125rem;
    line-height: 1.4;
    animation: errorSlideIn 0.3s ease-out;
}

@keyframes errorSlideIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-error svg,
.field-error svg,
.ef-error-text svg {
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    margin-top: 1px;
}

/* ============================================
   SUCCESS MESSAGES
   ============================================ */
.form-success,
.field-success,
.success-message {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.625rem 0.875rem;
    background: var(--form-color-valid-bg);
    border: 1px solid var(--form-color-valid-border);
    border-radius: 0.5rem;
    color: var(--form-color-valid);
    font-size: 0.8125rem;
    line-height: 1.4;
    animation: successFadeIn 0.3s ease-out;
}

@keyframes successFadeIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   DISABLED STATE
   ============================================ */
input:disabled,
textarea:disabled,
select:disabled,
button:disabled,
.form-input:disabled,
.form-textarea:disabled,
.form-select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: rgba(0, 0, 0, 0.15);
    border-color: rgba(139, 127, 255, 0.1);
}

/* ============================================
   LABELS
   ============================================ */
label,
.form-label,
.ef-label {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary, #f8f9fa);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    position: relative;
}

/* Required indicator */
.required,
.required-indicator,
.ef-required {
    color: var(--form-color-error);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
    margin-left: 2px;
}

/* Optional indicator */
.optional-indicator {
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: none;
    letter-spacing: normal;
    color: var(--color-text-muted, #6c757d);
    margin-left: 0.5rem;
}

/* ============================================
   HELP TEXT
   ============================================ */
.form-help-text,
.help-text,
.ef-help-text {
    margin-top: 0.375rem;
    font-size: 0.8125rem;
    color: var(--color-text-secondary, #adb5bd);
    line-height: 1.5;
    transition: color var(--form-transition-base);
}

/* Help text becomes more visible on focus */
.form-field:focus-within .form-help-text,
.ef-field:focus-within .ef-help-text {
    color: var(--color-text-primary, #f8f9fa);
}

/* ============================================
   CHARACTER COUNTER
   ============================================ */
.char-counter,
.character-count {
    position: absolute;
    right: 0.75rem;
    bottom: 0.625rem;
    font-size: 0.75rem;
    color: var(--color-text-muted, #6c757d);
    background: var(--form-input-bg);
    padding: 0 0.25rem;
    border-radius: 0.25rem;
    pointer-events: none;
    transition: color var(--form-transition-base);
}

.char-counter.warning {
    color: var(--form-color-warning);
    font-weight: 500;
}

.char-counter.danger {
    color: var(--form-color-error);
    font-weight: 600;
}

/* ============================================
   SELECT ENHANCEMENT
   ============================================ */
select,
.form-select,
.ef-select {
    cursor: pointer;
    padding-right: 3rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%23adb5bd'%3E%3Cpath d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
}

select:focus,
.form-select:focus,
.ef-select:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%238b7fff'%3E%3Cpath d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
}

/* ============================================
   CHECKBOX & RADIO ENHANCEMENTS
   ============================================ */
input[type="checkbox"],
input[type="radio"] {
    width: 20px;
    height: 20px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--color-primary, #8b7fff);
    transition: transform var(--form-transition-fast);
}

input[type="checkbox"]:hover,
input[type="radio"]:hover {
    transform: scale(1.1);
}

input[type="checkbox"]:focus-visible,
input[type="radio"]:focus-visible {
    outline: 2px solid var(--color-primary, #8b7fff);
    outline-offset: 2px;
}

/* Custom checkbox styling */
.checkbox-wrapper,
.radio-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem 0;
}

.checkbox-wrapper label,
.radio-wrapper label {
    margin-bottom: 0;
    text-transform: none;
    letter-spacing: normal;
    font-weight: 400;
    cursor: pointer;
}

/* ============================================
   FORM FIELD CONTAINER
   ============================================ */
.form-field,
.field-group,
.ef-field {
    display: flex;
    flex-direction: column;
    margin-bottom: 1.5rem;
    position: relative;
}

.form-field.has-error label,
.ef-field.has-error .ef-label {
    color: var(--form-color-error);
}

.form-field.is-valid label,
.ef-field.is-valid .ef-label {
    color: var(--form-color-valid);
}

/* ============================================
   INPUT GROUP (prefix/suffix)
   ============================================ */
.input-group {
    display: flex;
    position: relative;
}

.input-group input {
    flex: 1;
    min-width: 0;
}

.input-group-prefix,
.input-group-suffix {
    display: flex;
    align-items: center;
    padding: 0 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid var(--form-input-border);
    color: var(--color-text-secondary, #adb5bd);
    font-size: 0.9rem;
    white-space: nowrap;
}

.input-group-prefix {
    border-right: none;
    border-radius: 0.75rem 0 0 0.75rem;
}

.input-group-suffix {
    border-left: none;
    border-radius: 0 0.75rem 0.75rem 0;
}

.input-group input:first-child {
    border-radius: 0.75rem 0 0 0.75rem;
}

.input-group input:last-child {
    border-radius: 0 0.75rem 0.75rem 0;
}

.input-group input:only-child {
    border-radius: 0.75rem;
}

/* ============================================
   SUBMIT BUTTON STATES
   ============================================ */
button[type="submit"],
.btn-submit,
.form-submit-btn {
    position: relative;
    overflow: hidden;
}

button[type="submit"].loading,
.btn-submit.loading,
.form-submit-btn.loading {
    color: transparent;
    pointer-events: none;
}

button[type="submit"].loading::after,
.btn-submit.loading::after,
.form-submit-btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: buttonSpinner 0.8s linear infinite;
}

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

/* Spinner for form utils */
.form-spinner {
    animation: buttonSpinner 1s linear infinite;
}

/* ============================================
   FORM STATUS CONTAINER
   ============================================ */
.form-status-container {
    display: none;
    margin-top: 1rem;
}

.form-status-container.visible {
    display: block;
    animation: statusEnter 0.3s ease-out;
}

@keyframes statusEnter {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-status {
    padding: 1rem 1.25rem;
    border-radius: 0.75rem;
    text-align: center;
    font-weight: 500;
}

.form-status.loading {
    background: var(--form-color-info-bg);
    border: 1px solid var(--form-color-info-border);
    color: var(--form-color-info);
}

.form-status.success {
    background: var(--form-color-valid-bg);
    border: 1px solid var(--form-color-valid-border);
    color: var(--form-color-valid);
}

.form-status.error {
    background: var(--form-color-error-bg);
    border: 1px solid var(--form-color-error-border);
    color: var(--form-color-error);
}

/* ============================================
   DRAFT SAVE INDICATOR
   ============================================ */
.draft-save-indicator {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: var(--form-color-valid);
    border-radius: 0.75rem;
    color: white;
    font-size: 0.8125rem;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(34, 197, 94, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--form-transition-base);
    z-index: 1000;
}

.draft-save-indicator.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.draft-save-indicator svg {
    flex-shrink: 0;
}

.draft-save-time {
    opacity: 0.8;
    font-size: 0.75rem;
    margin-left: 0.25rem;
}

/* ============================================
   MULTI-STEP FORM PROGRESS
   ============================================ */
.form-steps-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 2rem;
    padding: 0 1rem;
}

.step-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--form-transition-base);
    position: relative;
}

.step-indicator:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary, #adb5bd);
    transition: all var(--form-transition-base);
}

.step-indicator.active .step-number {
    background: var(--color-primary, #8b7fff);
    border-color: var(--color-primary, #8b7fff);
    color: white;
    box-shadow: 0 0 0 4px rgba(139, 127, 255, 0.25);
    animation: stepPulse 2s ease-in-out infinite;
}

@keyframes stepPulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(139, 127, 255, 0.25); }
    50% { box-shadow: 0 0 0 8px rgba(139, 127, 255, 0.1); }
}

.step-indicator.completed .step-number {
    background: var(--form-color-valid);
    border-color: var(--form-color-valid);
    color: white;
}

.step-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-secondary, #adb5bd);
    white-space: nowrap;
}

.step-indicator.active .step-label {
    color: var(--color-primary, #8b7fff);
}

.step-indicator.completed .step-label {
    color: var(--form-color-valid);
}

.step-connector {
    width: 40px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.step-connector::after {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--form-color-valid);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease-out;
}

.step-indicator.completed + .step-connector::after {
    transform: scaleX(1);
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
    input:not([type="checkbox"]):not([type="radio"]):not([type="submit"]):not([type="button"]),
    textarea,
    select,
    .form-input,
    .form-textarea,
    .form-select {
        padding: 0.75rem 0.875rem;
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .form-steps-indicator {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .step-connector {
        display: none;
    }

    .step-indicator {
        padding: 0.375rem 0.75rem;
    }

    .step-label {
        display: none;
    }

    .draft-save-indicator {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        justify-content: center;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    input,
    textarea,
    select,
    button,
    .form-field,
    .form-error,
    .form-success,
    .form-status,
    .draft-save-indicator {
        animation: none !important;
        transition-duration: 0.01ms !important;
    }
}

@media (prefers-contrast: high) {
    input,
    textarea,
    select {
        border-width: 3px;
    }

    input:focus,
    textarea:focus,
    select:focus {
        box-shadow: 0 0 0 4px currentColor;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .draft-save-indicator,
    .form-status-container,
    button[type="submit"],
    .btn-submit {
        display: none !important;
    }

    input,
    textarea,
    select {
        border: 1px solid #ccc;
        background: white;
        color: black;
    }
}