@font-face {
  font-family: "Sans";
  src: url("../fonts/sans.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
}
@font-face {
  font-family: "Serif";
  src: url("../fonts/serif.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
}

:root {
  --background: #1e1e1e;
  --dark: #191830;
  --light: #ccd5db;
  --primary: #726ee0;
  --secondary: #eb5755;
  --transparent-light: rgba(204, 213, 219, 0.4);
}

.root {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--background);
}

body {
  font-family: "Sans", sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--background);
  color: var(--light);
  position: relative;
  overflow-x: hidden;
}

.bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(225deg, var(--background) 50%, var(--dark) 100%);
  z-index: -2;
}

.grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url(https://grainy-gradients.vercel.app/noise.svg);
  opacity: 0.6;
  z-index: -1;
  pointer-events: none;
  filter: contrast(150%) brightness(40%) invert(1);
  mix-blend-mode: multiply;
}

nav {
  background-color: var(--background);
  border: 1px solid var(--transparent-light);
  width: 101%;
  margin-top: -0.4rem;
  margin-left: -0.5rem;
  align-self: center;
  justify-content: center;
  padding: 1rem;
  padding-left: 2rem;
  z-index: 20;
}

.lines {
  position: fixed;
  left: 4vw;
  top: 0;
  height: 100vh;
  display: flex;
  gap: calc(3vw);
  z-index: -1;
}

.lines .line {
  width: 1.5px;
  height: 100%;
  background-color: var(--light);
  opacity: 0.3;
}

main {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 100px);
  padding: 2rem;
}

.chat-container {
  width: 100%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.chat-header {
  font-family: "Serif", serif;
  font-size: 3.4rem;
  font-weight: normal;
  color: var(--light);
  text-align: center;
  margin: 0;
}

.chat-subtitle {
  font-family: "Sans", sans-serif;
  font-size: 1.1rem;
  color: var(--light);
  text-align: center;
  margin: 0;
  opacity: 0.7;
  line-height: 1.6;
  max-width: 600px;
  align-self: center;
}

.chat-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-align: left;

  background-color: rgba(30, 30, 30, 0.8);
  border: 1px solid var(--light);
  border-radius: 24px;
  padding: 0.75rem 1.25rem;
  padding-right: 2%;
  min-height: 70px;
  backdrop-filter: blur(10px);
  transition: box-shadow 1s ease, border-color 0.5s ease;
}

.chat-input-wrapper:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 20px rgba(114, 110, 224, 0.5),
    0 0 40px rgba(114, 110, 224, 0.3);
}

.chat-input {
  flex: 1;
  background: transparent;
  border: none;
  width: 90%;
  color: var(--light);
  font-family: "Sans", sans-serif;
  font-size: 1.1rem;
  padding: 0;
  outline: none;
  resize: none;
  align-self: flex-start;
  margin-top: 0.5rem;
  line-height: 1.5;
}

.chat-input::placeholder {
  color: var(--light);
  opacity: 0.5;
}

.send-button {
  background-color: var(--primary);
  color: var(--light);
  border: 1px solid var(--light);
  border-radius: 20px;
  min-width: 60px;
  padding: 0 1rem;
  height: -webkit-fill-available;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.5rem;
  transition: all 1s ease-in-out;
}

.send-button:hover {
  background-color: var(--background);
  border-color: var(--primary);
}

h1 {
  font-family: "Serif", serif;
  font-weight: lighter;
  color: var(--light);
  margin: 0.5rem 0;
}

svg {
  z-index: -2;
}