File: style.css

:root {
  --max-width: 1100px;
  --border-radius: 12px;
  --font-mono: ui-monospace, Menlo, Monaco, "Cascadia Mono", "Segoe UI Mono",
    "Roboto Mono", "Oxygen Mono", "Ubuntu Monospace", "Source Code Pro",
    "Fira Mono", "Droid Sans Mono", "Courier New", monospace;

  --foreground-rgb: 0, 0, 0;
  --background-start-rgb: 214, 219, 220;
  --background-end-rgb: 255, 255, 255;

  --primary-glow: conic-gradient(
    from 180deg at 50% 50%,
    #16abff33 0deg,
    #0885ff33 55deg,
    #54d6ff33 120deg,
    #0071ff33 160deg,
    transparent 360deg
  );
  --secondary-glow: radial-gradient(
    rgba(255, 255, 255, 1),
    rgba(255, 255, 255, 0)
  );

  --tile-start-rgb: 239, 245, 249;
  --tile-end-rgb: 228, 232, 233;
  --tile-border: conic-gradient(
    #00000080,
    #00000040,
    #00000030,
    #00000020,
    #00000010,
    #00000010,
    #00000080
  );

  --callout-rgb: 238, 240, 241;
  --callout-border-rgb: 172, 175, 176;
  --card-rgb: 180, 185, 188;
  --card-border-rgb: 131, 134, 135;
}

@media (prefers-color-scheme: dark) {
  :root {
    --foreground-rgb: 255, 255, 255;
    --background-start-rgb: 0, 0, 0;
    --background-end-rgb: 0, 0, 0;

    --primary-glow: radial-gradient(rgba(1, 65, 255, 0.4), rgba(1, 65, 255, 0));
    --secondary-glow: linear-gradient(
      to bottom right,
      rgba(1, 65, 255, 0),
      rgba(1, 65, 255, 0),
      rgba(1, 65, 255, 0.3)
    );

    --tile-start-rgb: 2, 13, 46;
    --tile-end-rgb: 2, 5, 19;
    --tile-border: conic-gradient(
      #ffffff80,
      #ffffff40,
      #ffffff30,
      #ffffff20,
      #ffffff10,
      #ffffff10,
      #ffffff80
    );

    --callout-rgb: 20, 20, 20;
    --callout-border-rgb: 108, 108, 108;
    --card-rgb: 100, 100, 100;
    --card-border-rgb: 200, 200, 200;
  }
}

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

html,
body {
  max-width: 100vw;
  overflow-x: hidden;
}

body {
  margin: 0;
  padding: 0;
  color: rgb(var(--foreground-rgb));
  background: linear-gradient(
      to bottom,
      transparent,
      rgb(var(--background-end-rgb))
    )
    rgb(var(--background-start-rgb));
}
/* body {
  background-color: #dae3e6;
  font-family: "Helvetica Neue", "Helvetica", Helvetica, Arial, sans-serif;
  color: #777;
  position: relative;
  height: 100%;
} */

a {
  color: inherit;
  text-decoration: none;
}
.text {
  color: rgb(var(--foreground-rgb));
}

@media (prefers-color-scheme: dark) {
  html {
    color-scheme: dark;
  }
}

.main {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 6rem;
  min-height: 100vh;
}

.description {
  display: inherit;
  justify-content: inherit;
  align-items: inherit;
  font-size: 0.85rem;
  max-width: var(--max-width);
  width: 100%;
  z-index: 2;
  font-family: var(--font-mono);
}

.description a {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

.description p {
  position: relative;
  margin: 0;
  padding: 1rem;
  background-color: rgba(var(--callout-rgb), 0.5);
  border: 1px solid rgba(var(--callout-border-rgb), 0.3);
  border-radius: var(--border-radius);
}

.code {
  font-weight: 700;
  font-family: var(--font-mono);
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(25%, auto));
  width: var(--max-width);
  max-width: 100%;
}

.card {
  padding: 1rem 1.2rem;
  border-radius: var(--border-radius);
  background: rgba(var(--card-rgb), 0);
  border: 1px solid rgba(var(--card-border-rgb), 0);
  transition: background 200ms, border 200ms;
}

.card span {
  display: inline-block;
  transition: transform 200ms;
}

.card h2 {
  font-weight: 600;
  margin-bottom: 0.7rem;
}

.card p {
  margin: 0;
  opacity: 0.6;
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 30ch;
}

.center {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  padding: 4rem 0;
}

.center::before {
  background: var(--secondary-glow);
  border-radius: 50%;
  width: 480px;
  height: 360px;
  margin-left: -400px;
}

.center::after {
  background: var(--primary-glow);
  width: 240px;
  height: 180px;
  z-index: -1;
}

.center::before,
.center::after {
  content: "";
  left: 50%;
  position: absolute;
  filter: blur(45px);
  transform: translateZ(0);
}

.logo,
.thirteen {
  position: relative;
}

.thirteen {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 75px;
  height: 75px;
  padding: 25px 10px;
  margin-left: 16px;
  transform: translateZ(0);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0px 2px 8px -1px #0000001a;
}

.thirteen::before,
.thirteen::after {
  content: "";
  position: absolute;
  z-index: -1;
}

/* Conic Gradient Animation */
.thirteen::before {
  animation: 6s rotate linear infinite;
  width: 200%;
  height: 200%;
  background: var(--tile-border);
}

/* Inner Square */
.thirteen::after {
  inset: 0;
  padding: 1px;
  border-radius: var(--border-radius);
  background: linear-gradient(
    to bottom right,
    rgba(var(--tile-start-rgb), 1),
    rgba(var(--tile-end-rgb), 1)
  );
  background-clip: content-box;
}

/* Enable hover only on non-touch devices */
@media (hover: hover) and (pointer: fine) {
  .card:hover {
    background: rgba(var(--card-rgb), 0.1);
    border: 1px solid rgba(var(--card-border-rgb), 0.15);
  }

  .card:hover span {
    transform: translateX(4px);
  }
}

@media (prefers-reduced-motion) {
  .thirteen::before {
    animation: none;
  }

  .card:hover span {
    transform: none;
  }
}

/* Mobile */
@media (max-width: 700px) {
  .content {
    padding: 4rem;
  }

  .grid {
    grid-template-columns: 1fr;
    margin-bottom: 120px;
    max-width: 320px;
    text-align: center;
  }

  .card {
    padding: 1rem 2.5rem;
  }

  .card h2 {
    margin-bottom: 0.5rem;
  }

  .center {
    padding: 8rem 0 6rem;
  }

  .center::before {
    transform: none;
    height: 300px;
  }

  .description {
    font-size: 0.8rem;
  }

  .description a {
    padding: 1rem;
  }

  .description p,
  .description div {
    display: flex;
    justify-content: center;
    position: fixed;
    width: 100%;
  }

  .description p {
    align-items: center;
    inset: 0 0 auto;
    padding: 2rem 1rem 1.4rem;
    border-radius: 0;
    border: none;
    border-bottom: 1px solid rgba(var(--callout-border-rgb), 0.25);
    background: linear-gradient(
      to bottom,
      rgba(var(--background-start-rgb), 1),
      rgba(var(--callout-rgb), 0.5)
    );
    background-clip: padding-box;
    backdrop-filter: blur(24px);
  }

  .description div {
    align-items: flex-end;
    pointer-events: none;
    inset: auto 0 0;
    padding: 2rem;
    height: 200px;
    background: linear-gradient(
      to bottom,
      transparent 0%,
      rgb(var(--background-end-rgb)) 40%
    );
    z-index: 1;
  }
}

/* Tablet and Smaller Desktop */
@media (min-width: 701px) and (max-width: 1120px) {
  .grid {
    grid-template-columns: repeat(2, 50%);
  }
}

@media (prefers-color-scheme: dark) {
  .logo {
    filter: invert(1);
  }

  .logo,
  .thirteen img {
    filter: invert(1) drop-shadow(0 0 0.3rem #ffffff70);
  }
}

@keyframes rotate {
  from {
    transform: rotate(360deg);
  }
  to {
    transform: rotate(0deg);
  }
}

.main {
  margin-top: auto;
  margin-bottom: auto;
}

.main span {
  text-align: center;
  color: #333;
}

span[callType] {
  cursor: pointer;
}

/* Invoice Dark */
.container.invoice {
  margin: 0;
  padding: 0;
  text-align: none;
  font: 400 0.875rem "Open Sans", sans-serif;
  color: #bcd0f7;
  background: #1a233a;
  position: relative;
  height: 100%;
}

.invoice-container {
  padding: 1rem;
}
.invoice-container .invoice-header .invoice-logo {
  margin: 0.8rem 0 0 0;
  display: inline-block;
  font-size: 1.6rem;
  font-weight: 700;
  color: #bcd0f7;
}
.invoice-container .invoice-header .invoice-logo img {
  max-width: 130px;
}
.invoice-container .invoice-header address {
  font-size: 0.8rem;
  color: #8a99b5;
  margin: 0;
}
.invoice-container .invoice-details {
  margin: 1rem 0 0 0;
  padding: 1rem;
  line-height: 180%;
  background: #1a233a;
}
.invoice-container .invoice-details .invoice-num {
  text-align: right;
  font-size: 0.8rem;
}
.invoice-container .invoice-body {
  padding: 1rem 0 0 0;
}
.invoice-container .invoice-footer {
  text-align: center;
  font-size: 0.7rem;
  margin: 5px 0 0 0;
}

.invoice-status {
  text-align: center;
  padding: 1rem;
  background: #272e48;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  border-radius: 4px;
  margin-bottom: 1rem;
}
.invoice-status h2.status {
  margin: 0 0 0.8rem 0;
}
.invoice-status h5.status-title {
  margin: 0 0 0.8rem 0;
  color: #8a99b5;
}
.invoice-status p.status-type {
  margin: 0.5rem 0 0 0;
  padding: 0;
  line-height: 150%;
}
.invoice-status i {
  font-size: 1.5rem;
  margin: 0 0 1rem 0;
  display: inline-block;
  padding: 1rem;
  background: #1a233a;
  -webkit-border-radius: 50px;
  -moz-border-radius: 50px;
  border-radius: 50px;
}
.invoice-status .badge {
  text-transform: uppercase;
}

@media (max-width: 767px) {
  .invoice-container {
    padding: 1rem;
  }
}

.card {
  background: #272e48;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  border: 0;
  margin-bottom: 1rem;
}

.custom-table {
  border: 1px solid #2b3958;
}
.custom-table thead {
  background: #2f71c1;
}
.custom-table thead th {
  border: 0;
  color: #ffffff;
}
.custom-table > tbody tr:hover {
  background: #172033;
}
.custom-table > tbody tr:nth-of-type(even) {
  background-color: #1a243a;
}
.custom-table > tbody td {
  border: 1px solid #2e3d5f;
}

.table {
  background: #1a243a;
  color: #bcd0f7;
  font-size: 0.75rem;
}
.text-success {
  color: #c0d64a !important;
}
.custom-actions-btns {
  margin: auto;
  display: flex;
  justify-content: flex-end;
}
.custom-actions-btns .btn {
  margin: 0.3rem 0 0.3rem 0.3rem;
}