:root {
    --color-scheme: dark;
  
    --ff-content: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif;
    --ff-headings: 'oswald', system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif;
  
    --lh: 1.6;

    --fs-400: 1.15rem;
    --fs-500: 1.5rem;
    --fs-700: 2rem;
    --fs-900: 4rem;
  
    --clr-blue: hsl(211 43% 50%);
    --clr-turquoise: hsl(174 58% 42%);
    --clr-green: hsl(79 45% 55%);
    --clr-lime: hsl(65 68% 62%);
    --clr-yellow: hsl(51 100% 68%);
    --clr-orange: hsl(28 93% 67%);
    --clr-red: hsl(345 67% 53%);

    --clr-accent: var(--clr-green);

    --clr-success: hsl(143, 100%, 26%);
    --clr-warning: hsl(43, 100%, 66%);
    --clr-error: hsl(348, 55%, 49%);
}


/* Resets */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body,
h1,
h2,
h3 {
  margin: 0;
}

img {
  max-width: 100%;
  display: block;
}


/* Typography */

html {
  color-scheme: var(--color-scheme);
}

body {
  font-family: var(--ff-content);
  font-weight: 300;
  font-size: var(--fs-400);
  line-height: var(--lh);
}

h1,
h2,
h3 {
  font-family: var(--ff-headings);
  font-size: var(--fs-700);
  font-weight: 700;
}

.logo {
  font-family: var(--ff-headings);
  font-size: var(--fs-500);
  font-weight: 700;
}

.nav__list {
  font-family: var(--ff-headings);
  font-size: var(--fs-500);
  font-weight: 500;
}

.site-title {
  font-size: var(--fs-700);
  line-height: 1.05;
  text-transform: uppercase;
}

.hero__btn {
  font-family: var(--ff-content);
  font-size: var(--fs-400);
}

.section-title {
  font-size: var(--fs-800);
  line-height: 1.1;
}

.players__section {
  text-transform: uppercase;
  font-size: 1rem;
  font-weight: 600;
}


/* Utilities */

.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}


/* General */

.container {
  width: 90%;
  max-width: 900px;
  margin: 0 auto;
  /* added for nav-toggle positioning */
  position: relative;
}

/* .flow > * + * {
  margin-top: var(--flow-spacing, 1em);
} */


/* Header and hero */

.header {
  /* position: fixed;
  top: 0;
  left: 0; */
  width: 100%;
  padding: 1em 0;
  text-align: center;
}

.nav-toggle {
  cursor: pointer;
  border: 0;
  width: 3em;
  height: 3em;
  padding: 0em;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  color: white;
  transition: opacity 250ms ease;
  
  position: absolute;
  left: 0;
}

.nav-toggle:focus,
.nav-toggle:hover {
  opacity: .75;
}

.hamburger {
  width: 50%;
  position: relative;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  margin: 0 auto;
  height: 3px;
  background: white;
}

.hamburger::before,
.hamburger::after {
  content: '';
  width: 100%;
}

.hamburger::before {
  transform: translateY(-6px);
}

.hamburger::after {
  transform: translateY(3px);
}

.nav {
  visibility: hidden;
  height: 0;
  position: absolute;
  font-size: 1rem;
}

.nav--visible {
  visibility: visible;
  height: auto;
  position: relative;
}

.nav__list {
  margin: 0;
  padding: 0;
  list-style: none;
  /* display: flex;
  flex-wrap: wrap;
  gap: max(5vw, 1rem); */
}

.nav__item {
  margin-top: .75em;
}

.nav__link {
  text-decoration: none;
  color: inherit;
}

.nav__link:is(:hover, :focus) {
  opacity: .65;
}

.logo {
  /* height: 30px; */
  color: white;
  text-decoration: none;
}

.hero {
  background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('images/bobby_with_hmf_banner_opt.webp');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;

  padding-block: 14rem;
}

.hero__title {
  font-size: var(--fs-900);
  text-align: center;
  /* text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7); */
}

.hero__btn {
  border: 1px solid #fff;
  border-radius: 1000px;
  background-color: #fff;
  color: #000;
  mix-blend-mode: screen;
  cursor: pointer;
  display: block;
  margin: 2em auto;
  padding: 1rem 2rem;
  text-align: center;
  text-decoration: none;
  width: 15rem;
}

.hero__btn:is(:hover, :focus) {
  color: #fff;
  background-color: transparent;
  transition: 0.2s;
}


/* Main */

h2 {
  margin-top: 4rem;
}


/* Music */

.music__list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  list-style: none;
  margin: 1.5rem 0 0 0;
  padding: 0;
}

.music__item {
/*  flex: 1 1 20%;*/
  max-width: 30rem;
}

.music__item + .music__item {
  margin-top: 1rem;
}

.music__title {
  font-size: var(--ff-content);
  font-weight: normal;
  margin-bottom: 0.5rem;
}

video {
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

@media (min-width: 768px) {

  .music__item {
    flex: 1 1 20%;
  }

  .music__item + .music__item {
    margin-top: 0;
    margin-left: 2rem;
  }
}


/* Videos */

.videos__list {
  list-style: none;
  padding-left: 0;
  margin-block: 2rem;
}

.videos__item {
  position: relative;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
}

.videos__item + .videos__item {
  margin-top: 2rem;
}

.videos__item iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Concerts */

.concerts__col {
  column-count: 2;
}

/* Players */

.players__list dt {
  margin-top: 1.5em;
}

.players__list dd {
  margin-left: 0;
}

.players__instrument {
  color: var(--clr-accent);
}

/*.players__two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.players__two-columns img {
  width: 100%;
  height: auto;
}*/

/* Contact */

input,
textarea,
.send-button {
  outline: 1px solid hsl(0, 0%, 50%);
}

input:not(:placeholder-shown):valid,
textarea:not(:placeholder-shown):valid {
  outline-color: var(--clr-success);
}

input:not(:placeholder-shown):invalid,
textarea:not(:placeholder-shown):invalid {
  outline-color: var(--clr-error);
}

input:focus:invalid,
textarea:focus:invalid {
  outline-color: var(--clr-warning)
}

form {
  display: grid;
  gap: 0.75rem;
  max-width: 50ch;
  margin: 1em 0 2em 0;
}

.form-group {
  display: grid;
  gap: 0.25rem;
}

label {
  font-size: inherit;
}

input,
button.send-button,
textarea {
  font: inherit;
}

input,
textarea {
  padding: 0.25rem 0.5rem;
  border-radius: 0.1rem;
  border: 0;
  background-color: hsl(0, 0%, 15%)
}

textarea {
  padding: .4rem;
  height: 20ch;
}

.send-button {
  margin-top: 0.5rem;
  padding: 0.5rem 2rem;

/*  background-color: #007BFF;*/
  background-color: hsl(0, 0%, 40%);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: bold;
/*  transition: background-color 250ms ease;*/
}

.send-button:focus,
.send-button:hover {
  background-color: transparent;
/*  border: 1px solid white;*/
  transition: 0.2s;
}


/* Social media */

.social-icons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  font-size: var(--fs-500);
  padding-block: 1rem;
}

.social-icons--right {
  position: absolute;
  right: 0;
}

.icon {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
  border-radius: 50%;
  text-decoration: none;
  color: white;
  background-color: transparent;
  transition: opacity 250ms ease;
}

.icon:focus,
.icon:hover {
  opacity: .75;
}

.icon--big {
  font-size: 2rem;
}

.big-margin-block {
  margin: 2em auto 1.5em auto;
}

/* Media queries */

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}


@media (max-width: 768px) {

  .concerts__col {
    column-count: 1;
  }
}