/* ============================================
   FUNKY STEPPER - Visual Step Progress
   ============================================ */

/* CSS Variables */
:root {
    /* Indicator (circle) */
    --stepper-indicator-size: 32px;
    --stepper-indicator-size-sm: 24px;
    --stepper-indicator-size-lg: 40px;
    --stepper-indicator-bg: var(--pro-bg-tertiary);
    --stepper-indicator-bg-completed: var(--pro-accent-success);
    --stepper-indicator-bg-current: var(--pro-accent-primary);
    --stepper-indicator-bg-error: var(--pro-accent-danger);
    --stepper-indicator-color: var(--pro-text-secondary);
    --stepper-indicator-color-active: #ffffff;

    /* Connector (line) */
    --stepper-connector-width: 2px;
    --stepper-connector-color: var(--pro-border-color);
    --stepper-connector-color-completed: var(--pro-accent-success);

    /* Label */
    --stepper-label-color: var(--pro-text-secondary);
    --stepper-label-color-current: var(--pro-text-primary);
    --stepper-label-size: var(--pro-font-size-sm);

    /* Spacing */
    --stepper-gap: 16px;
}

/* Base */
.funky-stepper {
    width: 100%;
}

.funky-stepper__list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

/* ============================================
   HORIZONTAL ORIENTATION
   ============================================ */
.funky-stepper--horizontal .funky-stepper__list {
    flex-direction: row;
    align-items: flex-start;
}

.funky-stepper--horizontal .funky-stepper__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
    position: relative;
}

.funky-stepper--horizontal .funky-stepper__button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: none;
    border: none;
    padding: 0;
    cursor: default;
    font-family: inherit;
}

.funky-stepper--horizontal .funky-stepper__connector {
    position: absolute;
    top: calc(var(--stepper-indicator-size) / 2);
    left: calc(50% + var(--stepper-indicator-size) / 2 + 8px);
    right: calc(-50% + var(--stepper-indicator-size) / 2 + 8px);
    height: var(--stepper-connector-width);
    background: var(--stepper-connector-color);
}

.funky-stepper--horizontal .funky-stepper__connector--completed {
    background: var(--stepper-connector-color-completed);
}

/* ============================================
   INDICATOR (Circle)
   ============================================ */
.funky-stepper__indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--stepper-indicator-size);
    height: var(--stepper-indicator-size);
    border-radius: 50%;
    background: var(--stepper-indicator-bg);
    color: var(--stepper-indicator-color);
    font-weight: var(--pro-font-weight-semibold);
    font-size: var(--pro-font-size-sm);
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

/* Current step */
.funky-stepper__step--current .funky-stepper__indicator {
    background: var(--stepper-indicator-bg-current);
    color: var(--stepper-indicator-color-active);
    transform: scale(1.1);
}

/* Completed step */
.funky-stepper__step--completed .funky-stepper__indicator {
    background: var(--stepper-indicator-bg-completed);
    color: var(--stepper-indicator-color-active);
}

/* Error step */
.funky-stepper__step--error .funky-stepper__indicator {
    background: var(--stepper-indicator-bg-error);
    color: var(--stepper-indicator-color-active);
}

/* Disabled step */
.funky-stepper__step--disabled .funky-stepper__indicator {
    opacity: 0.5;
}

/* ============================================
   LABEL
   ============================================ */
.funky-stepper__label {
    font-size: var(--stepper-label-size);
    color: var(--stepper-label-color);
    text-align: center;
    max-width: 120px;
    transition: color 0.2s ease;
}

.funky-stepper__step--current .funky-stepper__label {
    color: var(--stepper-label-color-current);
    font-weight: var(--pro-font-weight-medium);
}

.funky-stepper__step--completed .funky-stepper__label {
    color: var(--stepper-label-color-current);
}

/* ============================================
   ERROR MESSAGE
   ============================================ */
.funky-stepper__error {
    font-size: var(--pro-font-size-xs);
    color: var(--pro-accent-danger);
    margin-top: 4px;
}

/* ============================================
   SIZE VARIANTS
   ============================================ */
.funky-stepper--sm .funky-stepper__indicator {
    width: var(--stepper-indicator-size-sm);
    height: var(--stepper-indicator-size-sm);
    font-size: var(--pro-font-size-xs);
}

.funky-stepper--sm .funky-stepper__connector {
    top: calc(var(--stepper-indicator-size-sm) / 2);
}

.funky-stepper--lg .funky-stepper__indicator {
    width: var(--stepper-indicator-size-lg);
    height: var(--stepper-indicator-size-lg);
    font-size: var(--pro-font-size-base);
}

.funky-stepper--lg .funky-stepper__connector {
    top: calc(var(--stepper-indicator-size-lg) / 2);
}

/* ============================================
   VERTICAL ORIENTATION
   ============================================ */
.funky-stepper--vertical .funky-stepper__list {
    flex-direction: column;
}

.funky-stepper--vertical .funky-stepper__step {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    position: relative;
    padding-bottom: var(--stepper-gap);
}

.funky-stepper--vertical .funky-stepper__button {
    display: flex;
    flex-direction: row;
    align-items: center;
    flex-wrap: nowrap;
    gap: 12px;
    text-align: left;
    background: none;
    border: none;
    padding: 0;
    cursor: default;
    font-family: inherit;
}

.funky-stepper--vertical .funky-stepper__connector {
    position: absolute;
    left: calc(var(--stepper-indicator-size) / 2);
    top: calc(var(--stepper-indicator-size) + 8px);
    bottom: 0;
    width: var(--stepper-connector-width);
    height: auto;
    background: var(--stepper-connector-color);
}

.funky-stepper--vertical .funky-stepper__connector--completed {
    background: var(--stepper-connector-color-completed);
}

.funky-stepper--vertical .funky-stepper__label {
    max-width: none;
    text-align: left;
    white-space: nowrap;
}

/* ============================================
   DESCRIPTION
   ============================================ */
.funky-stepper__description {
    display: block;
    font-size: var(--pro-font-size-xs);
    color: var(--pro-text-muted);
    margin-top: 2px;
}

.funky-stepper--horizontal .funky-stepper__description {
    max-width: 120px;
    text-align: center;
}

.funky-stepper--vertical .funky-stepper__description {
    text-align: left;
}

/* ============================================
   SUB-STEPS
   ============================================ */
.funky-stepper__substep-list {
    list-style: none;
    margin: 8px 0 0 calc(var(--stepper-indicator-size) / 2 + 8px);
    padding: 0;
    border-left: 1px dashed var(--pro-border-color);
}

.funky-stepper__substep {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0 4px 16px;
    position: relative;
}

.funky-stepper__substep-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--pro-bg-secondary);
    font-size: 10px;
}

.funky-stepper__substep--completed .funky-stepper__substep-indicator {
    background: var(--pro-accent-success);
    color: white;
}

.funky-stepper__substep-label {
    font-size: var(--pro-font-size-xs);
    color: var(--pro-text-secondary);
}

.funky-stepper__substep--completed .funky-stepper__substep-label {
    color: var(--pro-text-primary);
}

/* ============================================
   PROGRESS BAR
   ============================================ */
.funky-stepper__progress {
    margin-top: 16px;
    height: 4px;
    background: var(--pro-bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.funky-stepper__progress-bar {
    height: 100%;
    background: var(--pro-accent-success);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* ============================================
   CLICKABLE STATES
   ============================================ */
.funky-stepper__button[tabindex="0"] {
    cursor: pointer;
}

.funky-stepper__button[tabindex="0"]:hover .funky-stepper__indicator {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.funky-stepper__button[tabindex="0"]:focus {
    outline: none;
}

.funky-stepper__button[tabindex="0"]:focus-visible .funky-stepper__indicator {
    outline: 2px solid var(--pro-accent-primary);
    outline-offset: 2px;
}

/* Disabled state */
.funky-stepper__button[disabled] {
    cursor: not-allowed;
}

.funky-stepper__button[disabled] .funky-stepper__indicator {
    opacity: 0.5;
}

.funky-stepper__button[disabled] .funky-stepper__label {
    opacity: 0.5;
}

/* ============================================
   ANIMATIONS
   ============================================ */
.funky-stepper--animated .funky-stepper__indicator {
    transition: background-color 0.3s ease,
                color 0.3s ease,
                transform 0.3s ease,
                box-shadow 0.3s ease;
}

.funky-stepper--animated .funky-stepper__connector {
    transition: background-color 0.3s ease;
}

.funky-stepper--animated .funky-stepper__label {
    transition: color 0.3s ease, font-weight 0.3s ease;
}

.funky-stepper--animated .funky-stepper__progress-bar {
    transition: width 0.5s ease;
}

/* Step entrance animation */
@keyframes stepperFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.funky-stepper--animated .funky-stepper__step {
    animation: stepperFadeIn 0.3s ease forwards;
}

.funky-stepper--animated .funky-stepper__step:nth-child(1) { animation-delay: 0s; }
.funky-stepper--animated .funky-stepper__step:nth-child(2) { animation-delay: 0.05s; }
.funky-stepper--animated .funky-stepper__step:nth-child(3) { animation-delay: 0.1s; }
.funky-stepper--animated .funky-stepper__step:nth-child(4) { animation-delay: 0.15s; }
.funky-stepper--animated .funky-stepper__step:nth-child(5) { animation-delay: 0.2s; }
.funky-stepper--animated .funky-stepper__step:nth-child(6) { animation-delay: 0.25s; }
.funky-stepper--animated .funky-stepper__step:nth-child(7) { animation-delay: 0.3s; }
.funky-stepper--animated .funky-stepper__step:nth-child(8) { animation-delay: 0.35s; }

/* ============================================
   RESPONSIVE (Mobile)
   ============================================ */
@media (max-width: 767px) {
    .funky-stepper--horizontal .funky-stepper__label {
        display: none;
    }

    .funky-stepper--horizontal .funky-stepper__step--current .funky-stepper__label {
        display: block;
        position: absolute;
        top: calc(var(--stepper-indicator-size) + 8px);
        white-space: nowrap;
    }

    .funky-stepper--horizontal .funky-stepper__indicator {
        width: 24px;
        height: 24px;
        font-size: 12px;
    }

    .funky-stepper--horizontal .funky-stepper__connector {
        top: 12px;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .funky-stepper__indicator,
    .funky-stepper__label,
    .funky-stepper__connector,
    .funky-stepper__progress-bar {
        transition: none;
    }

    .funky-stepper--animated .funky-stepper__step {
        animation: none;
    }
}