:root {
  /* Typography */
  --ff-base: "Barlow Semi Condensed", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  --fs-base: 0.8125rem; /* 13px */
  --fw-500: 500;
  --fw-600: 600;

  /* Colors (típicos del style-guide del challenge) */
  --clr-violet: hsl(263, 55%, 52%);
  --clr-grayish-blue: hsl(217, 19%, 35%);
  --clr-blackish-blue: hsl(219, 29%, 14%);
  --clr-white: hsl(0, 0%, 100%);

  --clr-light-gray: hsl(0, 0%, 81%);
  --clr-light-grayish-blue: hsl(210, 46%, 95%);

  /* Layout tokens */
  --radius: 0.75rem;
  --shadow: 0 1.25rem 2.5rem rgba(0, 0, 0, 0.12);
  --gap: 1.5rem;
}

/* Base */
html {
  font-size: 100%;
}

body {
  font-family: var(--ff-base);
  font-size: var(--fs-base);
  background: var(--clr-light-grayish-blue);
  color: var(--clr-grayish-blue);
  line-height: 1.5;
}

.app-bg {
  min-height: 100dvh;
  display: grid;
  place-items: center;
}

/* Optional: slightly more breathing room on large */
@media (min-width: 992px) {
  .py-lg-6 {
    padding-block: 4rem !important;
  }
}

/* Grid layout */
.testimonial-grid {
  display: grid;
  gap: var(--gap);
}

/* Desktop layout matching the design:
   "daniel daniel jonathan kira"
   "jeanette patrick patrick kira"
*/
@media (min-width: 992px) {
  .testimonial-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-template-areas:
      "daniel daniel jonathan kira"
      "jeanette patrick patrick kira";
    align-items: start;
  }

  .t-card--daniel {
    grid-area: daniel;
  }
  .t-card--jonathan {
    grid-area: jonathan;
  }
  .t-card--kira {
    grid-area: kira;
  }
  .t-card--jeanette {
    grid-area: jeanette;
  }
  .t-card--patrick {
    grid-area: patrick;
  }
}

/* Card base */
.t-card {
  position: relative;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  background: var(--clr-white);
  overflow: hidden;
}

/* Header */
.t-card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-block-end: 1rem;
}

.t-avatar {
  inline-size: 2.5rem;
  block-size: 2.5rem;
  border-radius: 50%;
  object-fit: cover;
}

.t-avatar--ring {
  outline: 2px solid rgba(255, 255, 255, 0.55);
  outline-offset: 2px;
}

.t-meta {
  line-height: 1.2;
}

.t-name {
  font-weight: var(--fw-600);
  margin: 0;
}

.t-verified {
  margin: 0;
  opacity: 0.5;
  font-size: 0.75rem;
}

/* Title & body */
.t-title {
  font-weight: var(--fw-600);
  font-size: clamp(1.15rem, 1.05rem + 0.4vw, 1.4rem);
  line-height: 1.25;
  margin: 0 0 1rem 0;
}

.t-body {
  margin: 0;
  opacity: 0.7;
}

/* Variants */
.t-card--daniel {
  background: var(--clr-violet);
  color: var(--clr-white);
}

.t-card--daniel::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: 1.5rem;
  inline-size: 6.5rem;
  block-size: 6.5rem;
  background: url("../images/bg-pattern-quotation.svg") no-repeat;
  background-size: contain;
  opacity: 0.35;
  pointer-events: none;
}

.t-card--jonathan {
  background: var(--clr-grayish-blue);
  color: var(--clr-white);
}

.t-card--patrick {
  background: var(--clr-blackish-blue);
  color: var(--clr-white);
}

.t-card--jeanette,
.t-card--kira {
  background: var(--clr-white);
  color: var(--clr-grayish-blue);
}

/* Improve contrast for light cards */
.t-card--jeanette .t-verified,
.t-card--kira .t-verified {
  color: var(--clr-grayish-blue);
}

/* Reduce motion preference (good practice even if no animations) */
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
  }
}