/**
 * STEPPER / WIZARD - PharmData Design System v2.0
 * Indicador de progresso em múltiplas etapas
 *
 * Inclui: Stepper horizontal, vertical, com conteúdo, compacto
 */

/* ===================
   CSS CUSTOM PROPERTIES
   =================== */

:root {
    /* Step indicator */
    --stepper-size: 2.5rem;
    --stepper-size-sm: 2rem;
    --stepper-size-lg: 3rem;
    --stepper-font-size: 0.875rem;

    /* Colors */
    --stepper-bg: white;
    --stepper-bg-active: var(--teal-intense, #2AA198);
    --stepper-bg-complete: var(--teal-intense, #2AA198);
    --stepper-bg-pending: rgba(183, 228, 213, 0.2);
    --stepper-text: var(--soft-steel, #64748B);
    --stepper-text-active: white;
    --stepper-text-complete: white;
    --stepper-border: rgba(183, 228, 213, 0.4);
    --stepper-border-active: var(--teal-intense, #2AA198);

    /* Connector line */
    --stepper-line-width: 2px;
    --stepper-line-color: rgba(183, 228, 213, 0.3);
    --stepper-line-complete: var(--teal-intense, #2AA198);

    /* Spacing */
    --stepper-gap: 0.75rem;

    /* Transition */
    --stepper-transition: all 0.2s ease;
}

/* Dark mode */
:root.dark-mode {
    --stepper-bg: var(--arctic-mist, #1a2332);
    --stepper-bg-pending: rgba(183, 228, 213, 0.1);
    --stepper-border: rgba(183, 228, 213, 0.25);
    --stepper-line-color: rgba(183, 228, 213, 0.2);
}

/* ===================
   STEPPER CONTAINER
   =================== */

.stepper {
    display: flex;
    align-items: flex-start;
    width: 100%;
}

/* ===================
   STEP ITEM
   =================== */

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
}

/* Connector line */
.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: calc(var(--stepper-size) / 2);
    left: calc(50% + var(--stepper-size) / 2 + 0.5rem);
    right: calc(-50% + var(--stepper-size) / 2 + 0.5rem);
    height: var(--stepper-line-width);
    background: var(--stepper-line-color);
    transition: var(--stepper-transition);
}

.step.complete:not(:last-child)::after {
    background: var(--stepper-line-complete);
}

/* ===================
   STEP INDICATOR
   =================== */

.step-indicator {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--stepper-size);
    height: var(--stepper-size);
    background: var(--stepper-bg);
    border: 2px solid var(--stepper-border);
    border-radius: 50%;
    color: var(--stepper-text);
    font-size: var(--stepper-font-size);
    font-weight: 600;
    transition: var(--stepper-transition);
}

/* Active step */
.step.active .step-indicator {
    background: var(--stepper-bg-active);
    border-color: var(--stepper-border-active);
    color: var(--stepper-text-active);
    box-shadow: 0 0 0 4px rgba(42, 161, 152, 0.2);
}

/* Complete step */
.step.complete .step-indicator {
    background: var(--stepper-bg-complete);
    border-color: var(--stepper-border-active);
    color: var(--stepper-text-complete);
}

/* Complete checkmark */
.step.complete .step-indicator::after {
    content: '';
    width: 0.625rem;
    height: 0.375rem;
    border-left: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(-45deg);
    margin-top: -2px;
}

.step.complete .step-number {
    display: none;
}

/* Error step */
.step.error .step-indicator {
    background: var(--error, #EF4444);
    border-color: var(--error, #EF4444);
    color: white;
}

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

/* ===================
   STEP CONTENT
   =================== */

.step-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-top: var(--stepper-gap);
    max-width: 10rem;
}

.step-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--graphite-depth, #1F2937);
    margin: 0;
    line-height: 1.3;
}

.step.active .step-title {
    color: var(--teal-intense, #2AA198);
}

.step.disabled .step-title {
    color: var(--stepper-text);
}

.step-description {
    font-size: 0.75rem;
    color: var(--soft-steel, #64748B);
    margin-top: 0.25rem;
    line-height: 1.4;
}

/* Optional badge */
.step-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(183, 228, 213, 0.2);
    color: var(--teal-intense, #2AA198);
    border-radius: 10rem;
    margin-top: 0.375rem;
}

/* ===================
   STEP WITH ICON
   =================== */

.step-icon {
    font-size: 1rem;
}

.step.complete .step-icon {
    display: none;
}

/* ===================
   STEPPER SIZES
   =================== */

/* Small */
.stepper-sm .step-indicator {
    width: var(--stepper-size-sm);
    height: var(--stepper-size-sm);
    font-size: 0.75rem;
}

.stepper-sm .step:not(:last-child)::after {
    top: calc(var(--stepper-size-sm) / 2);
    left: calc(50% + var(--stepper-size-sm) / 2 + 0.375rem);
    right: calc(-50% + var(--stepper-size-sm) / 2 + 0.375rem);
}

.stepper-sm .step-title {
    font-size: 0.8125rem;
}

.stepper-sm .step-description {
    font-size: 0.6875rem;
}

/* Large */
.stepper-lg .step-indicator {
    width: var(--stepper-size-lg);
    height: var(--stepper-size-lg);
    font-size: 1rem;
}

.stepper-lg .step:not(:last-child)::after {
    top: calc(var(--stepper-size-lg) / 2);
    left: calc(50% + var(--stepper-size-lg) / 2 + 0.75rem);
    right: calc(-50% + var(--stepper-size-lg) / 2 + 0.75rem);
}

.stepper-lg .step-title {
    font-size: 1rem;
}

/* ===================
   STEPPER VARIANTS
   =================== */

/* --- Dot Style --- */
.stepper-dots .step-indicator {
    width: 0.75rem;
    height: 0.75rem;
    border-width: 0;
    background: var(--stepper-line-color);
}

.stepper-dots .step.active .step-indicator {
    background: var(--stepper-bg-active);
    width: 1rem;
    height: 1rem;
}

.stepper-dots .step.complete .step-indicator {
    background: var(--stepper-line-complete);
}

.stepper-dots .step.complete .step-indicator::after {
    display: none;
}

.stepper-dots .step:not(:last-child)::after {
    top: 0.375rem;
    left: calc(50% + 0.625rem);
    right: calc(-50% + 0.625rem);
}

.stepper-dots .step.active:not(:last-child)::after {
    top: 0.5rem;
}

/* --- Progress Bar Style --- */
.stepper-progress {
    position: relative;
    padding-bottom: 3rem;
}

.stepper-progress::before {
    content: '';
    position: absolute;
    top: calc(var(--stepper-size) / 2 - var(--stepper-line-width) / 2);
    left: calc(var(--stepper-size) / 2);
    right: calc(var(--stepper-size) / 2);
    height: var(--stepper-line-width);
    background: var(--stepper-line-color);
    z-index: 0;
}

.stepper-progress .step:not(:last-child)::after {
    display: none;
}

.stepper-progress-bar {
    position: absolute;
    top: calc(var(--stepper-size) / 2 - var(--stepper-line-width) / 2);
    left: calc(var(--stepper-size) / 2);
    height: var(--stepper-line-width);
    background: var(--stepper-line-complete);
    z-index: 0;
    transition: width 0.3s ease;
}

/* --- Clickable Steps --- */
.stepper-clickable .step-indicator {
    cursor: pointer;
}

.stepper-clickable .step-indicator:hover {
    transform: scale(1.05);
}

.stepper-clickable .step-indicator:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(42, 161, 152, 0.3);
}

.stepper-clickable .step.disabled .step-indicator {
    cursor: not-allowed;
    transform: none;
}

/* ===================
   VERTICAL STEPPER
   =================== */

.stepper-vertical {
    flex-direction: column;
    align-items: flex-start;
}

.stepper-vertical .step {
    flex-direction: row;
    align-items: flex-start;
    flex: none;
    width: 100%;
    padding-bottom: 2rem;
}

.stepper-vertical .step:last-child {
    padding-bottom: 0;
}

/* Vertical connector */
.stepper-vertical .step:not(:last-child)::after {
    top: calc(var(--stepper-size) + 0.5rem);
    bottom: 0.5rem;
    left: calc(var(--stepper-size) / 2 - var(--stepper-line-width) / 2);
    right: auto;
    width: var(--stepper-line-width);
    height: auto;
}

.stepper-vertical .step-content {
    align-items: flex-start;
    text-align: left;
    margin-top: 0;
    margin-left: 1rem;
    max-width: none;
    flex: 1;
}

/* Vertical with panel content */
.stepper-vertical .step-panel {
    margin-top: 0.75rem;
    padding: 1rem;
    background: rgba(183, 228, 213, 0.05);
    border-radius: 0.5rem;
    border-left: 3px solid var(--stepper-line-color);
}

.stepper-vertical .step.active .step-panel {
    border-left-color: var(--teal-intense, #2AA198);
}

/* ===================
   STEPPER NAVIGATION
   =================== */

.stepper-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--stepper-line-color);
}

.stepper-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: var(--stepper-transition);
}

.stepper-nav-prev {
    background: transparent;
    border: 1px solid var(--stepper-border);
    color: var(--graphite-depth, #1F2937);
}

.stepper-nav-prev:hover {
    background: var(--stepper-bg-pending);
}

.stepper-nav-next {
    background: var(--teal-intense, #2AA198);
    border: 1px solid var(--teal-intense, #2AA198);
    color: white;
}

.stepper-nav-next:hover {
    background: var(--emerald-abyss, #0B2D2A);
    border-color: var(--emerald-abyss, #0B2D2A);
}

.stepper-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===================
   COMPACT STEPPER
   Para headers ou espaços limitados
   =================== */

.stepper-compact {
    gap: 0.5rem;
}

.stepper-compact .step-content {
    display: none;
}

.stepper-compact .step:not(:last-child)::after {
    left: calc(50% + var(--stepper-size) / 2 + 0.25rem);
    right: calc(-50% + var(--stepper-size) / 2 + 0.25rem);
}

/* ===================
   INLINE STEPPER
   Com labels inline
   =================== */

.stepper-inline .step {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
}

.stepper-inline .step-content {
    margin-top: 0;
    text-align: left;
    max-width: none;
}

.stepper-inline .step:not(:last-child)::after {
    top: 50%;
    transform: translateY(-50%);
}

/* ===================
   STEPPER PANEL (Tab-like)
   =================== */

.stepper-panels {
    margin-top: 2rem;
}

.stepper-panel {
    display: none;
    padding: 1.5rem;
    background: var(--stepper-bg);
    border: 1px solid var(--stepper-border);
    border-radius: 0.5rem;
}

.stepper-panel.active {
    display: block;
}

/* ===================
   ACCESSIBILITY
   =================== */

/* Screen reader */
.stepper-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Keyboard focus */
.step-indicator:focus:not(:focus-visible) {
    box-shadow: none;
}

/* ARIA */
.step[aria-current="step"] .step-indicator {
    /* Current step indicator */
}

/* High contrast */
@media (prefers-contrast: high) {
    .step-indicator {
        border-width: 3px;
    }

    .step:not(:last-child)::after {
        height: 3px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .step-indicator,
    .step::after,
    .stepper-progress-bar,
    .stepper-nav-btn {
        transition: none;
    }
}

/* ===================
   RESPONSIVE
   =================== */

@media (max-width: 768px) {
    /* Convert horizontal to vertical on tablet */
    .stepper-responsive {
        flex-direction: column;
        align-items: flex-start;
    }

    .stepper-responsive .step {
        flex-direction: row;
        align-items: flex-start;
        flex: none;
        width: 100%;
        padding-bottom: 1.5rem;
    }

    .stepper-responsive .step:not(:last-child)::after {
        top: calc(var(--stepper-size) + 0.5rem);
        bottom: 0.5rem;
        left: calc(var(--stepper-size) / 2 - var(--stepper-line-width) / 2);
        right: auto;
        width: var(--stepper-line-width);
        height: auto;
    }

    .stepper-responsive .step-content {
        align-items: flex-start;
        text-align: left;
        margin-top: 0;
        margin-left: 1rem;
        max-width: none;
    }
}

@media (max-width: 640px) {
    .stepper-nav {
        flex-direction: column;
    }

    .stepper-nav-btn {
        width: 100%;
        justify-content: center;
    }

    /* Hide descriptions on mobile */
    .stepper .step-description {
        display: none;
    }
}