/* =========================================================
   DOCTATECH
   CORE PRINCIPLES
   ========================================================= */

.principles-preview {
    position: relative;

    padding: 64px 0 68px;

    background: #4a004b;

    color: #ffffff;

    overflow: hidden;
}

.principles-preview__container {
    width: min(1200px, calc(100% - 48px));

    margin: 0 auto;
}


/* =========================================================
   INTRO
   ========================================================= */

.principles-preview__intro {
    display: grid;

    grid-template-columns:
        minmax(0, 1.15fr)
        minmax(360px, 0.85fr);

    align-items: center;

    gap: 55px;

    margin-bottom: 38px;
}

.principles-preview__heading {
    max-width: 650px;
}

.principles-preview__eyebrow {
    margin: 0 0 12px;

    color: #ffc600;

    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;

    text-transform: uppercase;
}

.principles-preview__title {
    max-width: 620px;

    margin: 0;

    color: #ffffff;

    font-family: var(--font-display);

    font-size: clamp(46px, 4vw, 58px);
    font-weight: 600;

    line-height: 0.96;
    letter-spacing: -0.06em;
}

.principles-preview__title span {
    display: inline;

    color: #ffc600;
}

.principles-preview__description {
    max-width: 500px;

    padding: 0;
}

.principles-preview__description p {
    margin: 0;

    color: rgba(255, 255, 255, 0.88);

    font-size: 17px;
    line-height: 1.65;
}


/* =========================================================
   DIAGRAM
   ========================================================= */

.principles-preview__diagram {
    position: relative;

    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    gap: 56px;
}


/* =========================================================
   CONNECTOR
   ========================================================= */

.principles-preview__connector {
    position: absolute;

    top: 43px;

    left: 10%;
    right: 10%;

    height: 1px;

    background: rgba(255, 255, 255, 0.3);

    z-index: 0;

    transform-origin: left center;

    animation:
        principleConnector
        900ms
        cubic-bezier(0.16, 1, 0.3, 1)
        both;

    animation-delay: 180ms;
}


/* =========================================================
   PRINCIPLE
   ========================================================= */

.principle-point {
    position: relative;

    min-width: 0;

    z-index: 1;

    transition:
        transform 320ms cubic-bezier(0.16, 1, 0.3, 1);
}

.principle-point:hover {
    transform: translateY(-3px);
}


/* =========================================================
   NODE
   ========================================================= */

.principle-point__node {
    display: flex;

    flex-direction: column;

    align-items: center;

    height: 88px;
}

.principle-point__number {
    margin-bottom: 9px;

    color: rgba(255, 255, 255, 0.72);

    font-size: 11px;
    font-weight: 700;

    line-height: 1;

    transition:
        color 220ms ease,
        transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.principle-point:hover .principle-point__number {
    color: #ffc600;

    transform: translateY(-2px);
}

.principle-point__icon {
    width: 44px;
    height: 44px;

    display: grid;
    place-items: center;

    background: #ffc600;

    color: #4a004b;

    border: 4px solid #4a004b;

    border-radius: 50%;

    box-sizing: content-box;

    transition:
        transform 350ms cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

.principle-point:hover .principle-point__icon {
    transform:
        scale(1.08);

    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.18);
}

.principle-point__icon svg {
    width: 19px;
    height: 19px;

    fill: none;

    stroke: currentColor;

    stroke-width: 1.8;

    stroke-linecap: round;
    stroke-linejoin: round;

    transition:
        transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.principle-point:hover .principle-point__icon svg {
    transform: scale(1.08);
}


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

.principle-point__content {
    padding-top: 20px;

    text-align: center;
}

.principle-point__content h3 {
    margin: 0;

    color: #ffffff;

    font-family: var(--font-display);

    font-size: 22px;
    font-weight: 600;

    line-height: 1.15;

    letter-spacing: -0.03em;

    transition:
        color 220ms ease,
        transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
}

.principle-point:hover .principle-point__content h3 {
    color: #ffc600;

    transform: translateY(-1px);
}

.principle-point__content p {
    max-width: 290px;

    margin: 8px auto 0;

    color: rgba(255, 255, 255, 0.72);

    font-size: 14px;
    line-height: 1.55;
}


/* =========================================================
   MOTION
   ========================================================= */

@keyframes principleConnector {

    from {
        opacity: 0;

        transform: scaleX(0);
    }

    to {
        opacity: 1;

        transform: scaleX(1);
    }

}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 800px) {

    .principles-preview {
        padding: 56px 0 60px;
    }

    .principles-preview__intro {
        grid-template-columns: 1fr;

        gap: 22px;

        margin-bottom: 38px;
    }

    .principles-preview__description {
        max-width: 650px;
    }

    .principles-preview__diagram {
        gap: 28px;
    }

    .principle-point__content h3 {
        font-size: 20px;
    }

    .principle-point__content p {
        font-size: 13px;
    }

}


/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 600px) {

    .principles-preview {
        padding: 52px 0 58px;
    }

    .principles-preview__container {
        width: min(100% - 32px, 1200px);
    }

    .principles-preview__title {
        font-size: 40px;
    }

    .principles-preview__description p {
        font-size: 14px;
    }

    .principles-preview__diagram {
        grid-template-columns: 1fr;

        gap: 30px;
    }

    .principles-preview__connector {
        top: 44px;
        bottom: 44px;

        left: 22px;
        right: auto;

        width: 1px;
        height: auto;

        transform-origin: top center;

        animation-name: principleConnectorVertical;
    }

    .principle-point {
        display: grid;

        grid-template-columns: 44px 1fr;

        column-gap: 18px;

        align-items: start;
    }

    .principle-point__node {
        height: auto;

        align-items: center;
    }

    .principle-point__number {
        order: 1;

        margin-bottom: 8px;
    }

    .principle-point__icon {
        order: 2;

        width: 40px;
        height: 40px;
    }

    .principle-point__content {
        padding-top: 31px;

        text-align: left;
    }

    .principle-point__content p {
        margin-left: 0;
        margin-right: 0;
    }

}


/* =========================================================
   MOBILE CONNECTOR
   ========================================================= */

@keyframes principleConnectorVertical {

    from {
        opacity: 0;

        transform: scaleY(0);
    }

    to {
        opacity: 1;

        transform: scaleY(1);
    }

}


/* =========================================================
   REDUCED MOTION
   ========================================================= */

@media (prefers-reduced-motion: reduce) {

    .principles-preview__connector {
        animation: none;
    }

    .principle-point {
        transition: none;
    }

    .principle-point__icon,
    .principle-point__number,
    .principle-point__content h3,
    .principle-point__icon svg {
        transition: none;
    }

}