@import url("https://fonts.googleapis.com/css2?family=Barlow+Semi+Condensed:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap");

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Color */
  --white: hsl(0, 0%, 100%);
  --purple: hsl(263, 55%, 52%);
  --black: hsl(0, 0%, 7%);
  --grey: hsl(0, 0%, 81%);
  --grey-light: hsl(214, 17%, 92%);
  --grey-dark: hsl(224, 10%, 45%);
  --grey-blue: hsl(217, 19%, 35%);
  --dark-blue: hsl(219, 29%, 14%);
  --purple-light: hsl(260, 100%, 95%);
  --purple-blue: hsl(264, 82%, 80%);

  /* Spacing  */
  --spacing-sm: clamp(0.25rem, 0.25rem + 0.5vw, 0.75rem);
  --spacing-md: clamp(1rem, 0.5rem + 1vw, 1.5rem);
  --spacing-lg: clamp(1.5rem, 0.75rem + 1.5vw, 3rem);
  --spacing-xl: clamp(2rem, 1rem + 2vw, 4rem);
  --spacing-2xl: clamp(3rem, 1.5rem + 3vw, 6rem);
}

/* Base Layout - Mobile-First Design */
body {
  font-family: "Barlow Semi Condensed", sans-serif;
  background-color: var(--grey-light);
  color: var(--black);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.testimonial-grid {
  display: grid;
  gap: 1.5rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.testimonial {
  border-radius: 10px;
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  line-height: 1.4;
  position: relative;
  overflow: hidden;
}

.testimonial .author {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.author .name {
  font-size: 0.9rem;
  font-weight: 500;
}

.author img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

.author .status {
  font-size: 0.8rem;
  opacity: 0.7;
}

.testimonial .summary {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.3;
  position: relative;
  z-index: 2;
}

.testimonial .quote {
  font-size: 0.85rem;
  opacity: 0.7;
  line-height: 1.4;
  position: relative;
  z-index: 2;
}

/* Individual testimonial styles */
.testimonial-grid .daniel-clifford {
  background-color: var(--purple);
  color: var(--white);
  position: relative;
}

.testimonial-grid :is(.daniel-clifford img, .patrick-abrams img) {
  border: 2px solid var(--purple-blue);
}

.testimonial-grid .jonathan-walters {
  background-color: var(--grey-blue);
  color: var(--white);
}

.testimonial-grid .jeanette-harmon {
  background-color: var(--white);
  color: var(--grey-blue);
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.05);
}

.testimonial-grid .patrick-abrams {
  background-color: var(--dark-blue);
  color: var(--grey);
}

.testimonial-grid .kira-whittle {
  background-color: var(--white);
  color: var(--grey-blue);
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.05);
}

/* ============= */
/* Modern Footer */
/* ============= */
.footer {
  background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
  color: white;
  padding: var(--spacing-md) var(--spacing-lg);
  width: 100%;
  box-shadow: 0 clamp(0.25rem, 0.2rem + 0.25vw, 0.375rem)
    clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem) rgba(0, 0, 0, 0.1);
  margin-top: var(--spacing-2xl);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  place-items: center;
  gap: var(--spacing-md);
  flex-direction: column;
  text-align: center;
}

.developer-info {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.dev-name {
  font-size: clamp(1.5rem, 0.5rem + 1.5vw, 2rem);
  font-weight: 600;
  color: #ecf0f1;
}
.dev-title {
  color: #bdc3c7;
  font-size: clamp(1.125rem, 0.5rem + 1.5vw, 1.5rem);
}

.github-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.github-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 clamp(0.25rem, 0.2rem + 0.25vw, 0.375rem)
    clamp(0.5rem, 0.4rem + 0.5vw, 0.75rem) rgba(0, 0, 0, 0.3);
}

.github-icon {
  width: var(--spacing-md);
  height: var(--spacing-md);
  fill: white;
}

.footer-bottom {
  margin-top: 0.9rem;
  color: #95a5a6;
  font-size: clamp(1.125rem, 0.5rem + 1.5vw, 1.5rem);
  text-align: center;
}

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

/* Tablet: 576px and up */
@media (min-width: 576px) {
  .testimonial-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 2rem 1.5rem 0;
  }

  .testimonial {
    padding: 1.75rem;
  }

  .author img {
    width: 36px;
    height: 36px;
  }

  .author .name {
    font-size: 1rem;
  }

  .testimonial .summary {
    font-size: 1.2rem;
  }

  .testimonial .quote {
    font-size: 0.9rem;
  }
}

/* Large Tablet: 768px and up */
@media (min-width: 768px) {
  .testimonial-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.75rem;
  }

  .testimonial-grid .daniel-clifford::before {
    right: 20%;
  }
}

/* Desktop: 1024px and up */
@media (min-width: 1024px) {
  .testimonial-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    padding: 3rem 2rem 0;
  }

  .testimonial {
    padding: 1.5rem;
  }

  .author img {
    width: 38px;
    height: 38px;
  }
}

/* Large Desktop: 1200px and up - FINAL LAYOUT */
@media (min-width: 1200px) {
  .testimonial-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, auto);
    gap: 1.75rem;
    padding: 4rem 2rem 0;
  }

  /* Daniel Clifford - top left, spans 2 columns */
  .testimonial-grid .daniel-clifford {
    grid-column: 1 / 3;
    grid-row: 1 / 2;
  }

  /* Jonathan Walters - top right */
  .testimonial-grid .jonathan-walters {
    grid-column: 3 / 4;
    grid-row: 1 / 2;
  }

  /* Jeanette Harmon - middle left */
  .testimonial-grid .jeanette-harmon {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
  }

  /* Patrick Abrams - middle, spans 2 columns */
  .testimonial-grid .patrick-abrams {
    grid-column: 2 / 4;
    grid-row: 2 / 3;
  }

  /* Kira Whittle - right side, spans 2 rows */
  .testimonial-grid .kira-whittle {
    grid-column: 4 / 5;
    grid-row: 1 / 3;
  }

  .testimonial-grid .daniel-clifford::before {
    right: 80px;
    width: 120px;
    height: 120px;
  }

  .author img {
    width: 40px;
    height: 40px;
  }

  .author .name {
    font-size: 1.1rem;
  }

  .testimonial .summary {
    font-size: 1rem;
  }

  .testimonial .quote {
    font-size: 0.95rem;
  }
}

/* Extra large screens */
@media (min-width: 1440px) {
  .testimonial-grid {
    max-width: 1400px;
    gap: 1.5rem;
    padding: 12rem 6rem 0;
    margin-top: 4rem;
  }

  .testimonial {
    padding: 1.5rem;
  }

  .testimonial-grid .daniel-clifford::before {
    content: "";
    position: absolute;
    top: 0;
    right: 15%;
    width: 120px;
    height: 120px;
    background-image: url("images/bg-pattern-quotation.svg");
    background-repeat: no-repeat;
    background-size: contain;
    opacity: 0.7;
    z-index: 1;
  }

  .testimonial .summary {
    font-size: 1.2rem;
  }
}