/* ==========================================================================
   Section "comment ca fonctionne" - variante quinconce
   Une etape par rangee, texte et visuel alternent de cote.
   Namespace .hiw pour cohabiter avec .how-it-works-* et .step-* existants.
   ========================================================================== */

.hiw-section {
    padding: 40px 0 48px;
}

.hiw-container {
    background: linear-gradient(4deg, rgba(27, 75, 203, 0) 4.32%, rgba(184, 199, 239, 0.3) 86.79%);
    border-radius: 16.5px;
    padding: 64px 60px 68px;
}

/* --------------------------------------------------------------------------
   Bloc titre
   -------------------------------------------------------------------------- */

.hiw-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.hiw-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 18px;
    color: var(--color-primary-blue-900);
    margin-bottom: 18px;
}

.hiw-badge-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-primary-blue-500);
}

.hiw-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-medium);
    line-height: 1.12;
    letter-spacing: -0.8px;
    color: var(--color-neutral-500);
    margin: 0 0 16px;
}

.hiw-title-accent {
    color: var(--color-primary-blue-600);
}

.hiw-lead {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-regular);
    line-height: 26px;
    color: var(--color-neutral-300);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Quinconce : une etape par rangee, cotes inverses une rangee sur deux
   -------------------------------------------------------------------------- */

.hiw-steps {
    display: flex;
    flex-direction: column;
    gap: 48px;
    list-style: none;
    margin: 52px 0 0;
    padding: 0;
}

.hiw-step {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    gap: 56px;
}

/* Rangees paires : le visuel passe a gauche, le texte a droite */
.hiw-step:nth-child(even) .hiw-step-body {
    grid-column: 2;
    grid-row: 1;
}

.hiw-step:nth-child(even) .hiw-step-visual {
    grid-column: 1;
    grid-row: 1;
}

.hiw-step-body {
    max-width: 420px;
}

.hiw-step:nth-child(even) .hiw-step-body {
    justify-self: end;
}

.hiw-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--color-primary-blue-600);
    color: #FFFFFF;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.hiw-step-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-medium);
    line-height: 1.2;
    letter-spacing: -0.4px;
    color: var(--color-neutral-500);
    margin: 0 0 12px;
}

.hiw-step-text {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-regular);
    line-height: 26px;
    color: var(--color-neutral-300);
    margin: 0;
}

/* --------------------------------------------------------------------------
   Maquettes d'interface (aucun asset image)
   -------------------------------------------------------------------------- */

.hiw-step-visual {
    display: flex;
    justify-content: center;
}

.hiw-mock {
    width: 100%;
    max-width: 420px;
    background: #FFFFFF;
    border: 1px solid var(--color-primary-blue-50);
    border-radius: 18px;
    padding: 22px;
    box-shadow: 0 22px 50px -30px rgba(11, 32, 85, 0.45);
}

/* 01 - Formulaire ------------------------------------------------------- */

.hiw-mock-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.hiw-mock-head-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 20px;
    color: var(--color-neutral-500);
}

.hiw-mock-head-meta {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: 16px;
    color: var(--color-neutral-100);
}

.hiw-progress {
    height: 5px;
    border-radius: 99px;
    background: var(--color-primary-blue-50);
    overflow: hidden;
    margin-bottom: 18px;
}

.hiw-progress-fill {
    display: block;
    width: 33%;
    height: 100%;
    border-radius: 99px;
    background: var(--color-primary-blue-500);
}

.hiw-field {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 11px 14px;
    border: 1px solid var(--color-primary-blue-50);
    border-radius: 10px;
}

.hiw-field + .hiw-field {
    margin-top: 8px;
}

.hiw-field--active {
    border-color: var(--color-primary-blue-300);
    box-shadow: 0 0 0 3px rgba(27, 75, 203, 0.1);
}

.hiw-field-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-regular);
    line-height: 16px;
    color: var(--color-neutral-300);
}

.hiw-field-value {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 18px;
    color: var(--color-neutral-500);
}

.hiw-caret {
    width: 1.5px;
    height: 15px;
    background: var(--color-primary-blue-600);
    animation: hiw-blink 1.1s steps(1) infinite;
}

@keyframes hiw-blink {
    0%, 49% {
        opacity: 1;
    }
    50%, 100% {
        opacity: 0;
    }
}

/* 02 - Documents -------------------------------------------------------- */

.hiw-mock--docs {
    position: relative;
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0 0 0 14px;
}

.hiw-doc {
    background: #FFFFFF;
    border: 1px solid var(--color-primary-blue-50);
    border-radius: 16px;
}

/* Feuille en retrait qui suggere la pile de documents generes */
.hiw-doc--back {
    position: absolute;
    top: 16px;
    left: 0;
    width: 88%;
    height: calc(100% - 32px);
    transform: rotate(-3deg);
    box-shadow: 0 14px 34px -26px rgba(11, 32, 85, 0.5);
}

.hiw-doc--front {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 24px 26px 22px;
    box-shadow: 0 22px 50px -30px rgba(11, 32, 85, 0.45);
}

.hiw-doc-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 20px;
    color: var(--color-neutral-500);
    margin-bottom: 4px;
}

.hiw-doc-line {
    height: 7px;
    border-radius: 99px;
    background: var(--color-primary-blue-50);
}

.hiw-doc-line--long {
    width: 100%;
}

.hiw-doc-line--medium {
    width: 74%;
}

.hiw-doc-line--short {
    width: 46%;
}

.hiw-doc-badge {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: 7px;
    margin-top: 10px;
    padding: 7px 13px;
    border-radius: 99px;
    background: var(--color-secondary-turquoise-100);
    color: var(--color-secondary-turquoise-700);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    line-height: 16px;
}

/* 03 - Signature -------------------------------------------------------- */

.hiw-mock--sign {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px;
}

.hiw-sign-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    line-height: 16px;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--color-primary-blue-500);
}

.hiw-sign-pad {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border: 1.5px dashed var(--color-primary-blue-100);
    border-radius: 12px;
    background: var(--color-primary-blue-50);
    color: var(--color-primary-blue-800);
}

.hiw-sign-pad svg {
    width: 100%;
    max-width: 220px;
    height: auto;
}

.hiw-sign-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    line-height: 16px;
    color: var(--color-neutral-300);
}

.hiw-sign-meta svg {
    color: var(--color-secondary-turquoise-500);
    flex-shrink: 0;
}

.hiw-sign-action {
    padding: 13px 20px;
    border-radius: 99px;
    background: var(--color-primary-blue-500);
    color: #FFFFFF;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: 18px;
    text-align: center;
}

/* 04 - Formalites ------------------------------------------------------- */

.hiw-mock--filing {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px;
}

.hiw-filing-row {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 18px;
    color: var(--color-neutral-300);
}

.hiw-filing-row--current {
    color: var(--color-neutral-500);
    font-weight: var(--font-weight-semibold);
}

.hiw-filing-marker {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
}

.hiw-filing-row--done .hiw-filing-marker {
    background: var(--color-secondary-turquoise-500);
    color: #FFFFFF;
}

.hiw-filing-row--current .hiw-filing-marker {
    background: #FFFFFF;
    border: 2px solid var(--color-primary-blue-600);
    box-shadow: 0 0 0 4px rgba(27, 75, 203, 0.14);
    animation: hiw-pulse 2.4s ease-in-out infinite;
}

@keyframes hiw-pulse {
    0%, 100% {
        box-shadow: 0 0 0 4px rgba(27, 75, 203, 0.14);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(27, 75, 203, 0.06);
    }
}

.hiw-filing-kbis {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 6px;
    padding: 14px 16px;
    border-radius: 12px;
    background: var(--color-primary-blue-50);
}

.hiw-filing-kbis-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 18px;
    color: var(--color-neutral-500);
}

.hiw-filing-kbis-value {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    line-height: 16px;
    color: var(--color-primary-blue-700);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1080px) {
    .hiw-step {
        gap: 40px;
    }

    .hiw-step-title {
        font-size: var(--font-size-xl);
    }

    .hiw-step-text {
        font-size: var(--font-size-base);
        line-height: 22px;
    }
}

@media (max-width: 900px) {
    .hiw-steps {
        gap: 48px;
        margin-top: 56px;
    }

    /* Une seule colonne : le texte repasse systematiquement au-dessus du visuel */
    .hiw-step,
    .hiw-step:nth-child(even) {
        grid-template-columns: minmax(0, 1fr);
        gap: 28px;
    }

    .hiw-step .hiw-step-body,
    .hiw-step:nth-child(even) .hiw-step-body {
        grid-column: 1;
        grid-row: auto;
        justify-self: center;
        max-width: 560px;
        text-align: center;
    }

    .hiw-step .hiw-step-visual,
    .hiw-step:nth-child(even) .hiw-step-visual {
        grid-column: 1;
        grid-row: auto;
    }
}

@media (max-width: 768px) {
    .hiw-container {
        padding: 60px 20px 64px;
        border-radius: 16px;
    }

    .hiw-title {
        font-size: var(--font-size-2xl-plus);
        letter-spacing: -0.4px;
    }

    .hiw-lead {
        font-size: var(--font-size-base);
        line-height: 22px;
    }

    .hiw-step-number {
        width: 40px;
        height: 40px;
        font-size: var(--font-size-sm);
        margin-bottom: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hiw-caret,
    .hiw-filing-row--current .hiw-filing-marker {
        animation: none;
    }
}