/* ============================================================
   Piero Mixes Music — styles
   ============================================================ */

/* ---------- Theme & reset ---------- */
:root {
  --color-bg: #f7f7f8;
  --color-bg-alt: #ffffff;
  --color-surface: #ffffff;
  --color-text: #18181b;
  --color-muted: #52525b;
  --color-accent: #0084d1;
  --color-accent-hover: #1a95dd;
  --on-accent: #ffffff;
  --color-border: rgba(0, 0, 0, 0.1);
  --header-bg: rgba(247, 247, 248, 0.85);
  --hero-overlay-1: rgba(247, 247, 248, 0.35);
  --hero-overlay-2: rgba(247, 247, 248, 0.65);
  --hero-scrim: rgba(247, 247, 248, 0.55);
  --contact-overlay-1: rgba(247, 247, 248, 0.55);
  --contact-overlay-2: rgba(247, 247, 248, 0.72);
  --mobile-nav-bg: rgba(247, 247, 248, 0.98);
  --player-bg: #f0f0f2;
  --radius: 12px;
  --font-heading: "Montserrat", sans-serif;
  --font-body: "Open Sans", sans-serif;
  --header-h: 72px;
  --container: 1100px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #0d0d0f;
    --color-bg-alt: #151518;
    --color-surface: #1c1c21;
    --color-text: #f5f5f7;
    --color-muted: #a1a1aa;
    --color-accent: #e8b84b;
    --color-accent-hover: #f0c96a;
    --on-accent: #1a1a1a;
    --color-border: rgba(255, 255, 255, 0.08);
    --header-bg: rgba(13, 13, 15, 0.85);
    --hero-overlay-1: rgba(13, 13, 15, 0.55);
    --hero-overlay-2: rgba(13, 13, 15, 0.7);
    --hero-scrim: rgba(13, 13, 15, 0.55);
    --contact-overlay-1: rgba(13, 13, 15, 0.62);
    --contact-overlay-2: rgba(13, 13, 15, 0.78);
    --mobile-nav-bg: rgba(13, 13, 15, 0.98);
    --player-bg: #000;
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  width: min(var(--container), 100% - 2rem);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.9rem 2.2rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--on-accent);
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 100%;
}

.wordmark {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.main-nav > ul {
  display: flex;
  gap: 2rem;
}

.main-nav > ul a {
  font-size: 0.95rem;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

.main-nav > ul a:hover {
  color: var(--color-text);
}

.socials {
  position: fixed;
  top: 50%;
  right: 27px;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.socials a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--color-muted);
  transition: transform 0.15s ease, opacity 0.2s ease;
}

.socials a:hover {
  transform: translateY(-2px);
}

.socials img {
  display: block;
  width: 28px;
  height: 28px;
  object-fit: contain;
  object-position: center;
}

/* ---------- Mobile nav toggle ---------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  text-align: center;
  padding: 5rem 0;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: -20%;
  bottom: -20%;
  left: 0;
  right: 0;
  z-index: -1;
  will-change: transform;
  background-image: radial-gradient(ellipse 70% 55% at center, var(--hero-scrim) 0%, transparent 70%),
    linear-gradient(var(--hero-overlay-1), var(--hero-overlay-2)),
    url("../images/studio.jpg");
  background-size: cover;
  background-position: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  will-change: transform;
  transform: translateY(-6rem);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  max-width: 26ch;
  text-shadow: 0 1px 3px var(--color-border);
}

.hero-subtitle {
  font-size: clamp(1.5rem, 2vw, 1.2rem);
  color: var(--color-muted);
  max-width: 42ch;
  text-shadow: 0 1px 3px var(--color-border);
}

/* ---------- Sections ---------- */
.section {
  padding: 5.5rem 0;
}

.section + .section {
  border-top: 1px solid var(--color-border);
}

.contact {
  position: relative;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  top: -20%;
  bottom: -20%;
  left: 0;
  right: 0;
  z-index: 0;
  will-change: transform;
  background-image: linear-gradient(var(--contact-overlay-1), var(--contact-overlay-2)),
    url("../images/contact.jpg");
  background-size: cover;
  background-position: center;
}

.contact-container {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 2.5rem;
}

/* ---------- Portfolio ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.portfolio-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.portfolio-card-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
}

.player {
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
  background: var(--player-bg);
}

.player [id^="soundtoggle-"] {
  background: #f8f8fa;
}

.player iframe {
  display: block;
  width: 100%;
  border: 0;
}

/* ---------- Contact form ---------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.contact-form #form-submit {
  align-self: center;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-field input,
.form-field select {
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.2s ease;
}

.form-field input::placeholder {
  color: var(--color-muted);
  opacity: 1;
}

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-field input.is-invalid {
  border-color: #e5484d;
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.form-status {
  font-size: 0.95rem;
  min-height: 1.4em;
}

.form-status:empty {
  display: none;
}

.form-status.success {
  color: #7fd196;
}

.form-status.error {
  color: #f2a0a0;
}

.btn-success {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  white-space: nowrap;
  cursor: default;
}

.btn-success:hover {
  transform: none;
}

.btn-success .btn-text {
  text-transform: none;
  letter-spacing: 0;
}

.btn-ring {
  flex-shrink: 0;
}

.btn-loading {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: default;
}

.btn-loading:hover {
  transform: none;
}

.btn-spinner {
  flex-shrink: 0;
  transform-origin: center;
  animation: spinner-rotate 0.9s linear infinite;
}

.btn-spinner circle {
  animation: spinner-dash 1.4s ease-in-out infinite;
}

@keyframes spinner-rotate {
  to {
    transform: rotate(360deg);
  }
}

@keyframes spinner-dash {
  0% {
    stroke-dasharray: 2 100;
    stroke-dashoffset: 0;
  }
  50% {
    stroke-dasharray: 36 100;
    stroke-dashoffset: -40;
  }
  100% {
    stroke-dasharray: 2 100;
    stroke-dashoffset: -80;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-spinner {
    animation-duration: 2.4s;
  }
  .btn-spinner circle {
    animation-duration: 3.6s;
  }
}

@media (max-width: 480px) {
  .btn-success {
    white-space: normal;
    line-height: 1.4;
  }
}

/* ---------- About ---------- */
.about-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.about-text p {
  color: var(--color-muted);
  margin-bottom: 1rem;
  max-width: 60ch;
}

.about-text .btn {
  margin-top: 0.5rem;
}

.about-photo img {
  width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 3rem 0 2rem;
  background: var(--color-bg-alt);
}

.footer-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-links a {
  color: var(--color-muted);
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: 0.5rem;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 860px) {
  .portfolio-grid,
  .about-container,
  .form-row {
    grid-template-columns: 1fr;
  }

  .about-text .btn {
    display: block;
    width: max-content;
    margin-inline: auto;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    left: 0;
    background: var(--mobile-nav-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0 1.5rem;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav > ul {
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
  }

  .main-nav > ul a {
    font-size: 1.1rem;
  }

  .main-nav .socials {
    position: static;
    transform: none;
    flex-direction: row;
    justify-content: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Reviews ---------- */
.reviews {
  background: var(--color-bg);
}

.reviews-carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  overflow: hidden;
  padding: 0 48px;
}

.reviews-track {
  display: flex;
  transition: transform 0.5s ease;
}

.review-card {
  flex: 0 0 calc(50% - 1.5rem);
  margin: 0 0.75rem;
  min-width: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.review-stars {
  color: #f5b301;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
}

.review-text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
}

.review-author {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-muted);
}

.review-date {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-muted);
}

.reviews-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-accent);
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  z-index: 2;
}

.reviews-arrow-prev {
  left: 6px;
}

.reviews-arrow-next {
  right: 6px;
}

.reviews-arrow:hover {
  background: var(--color-accent);
  color: var(--on-accent);
}

.reviews-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.reviews-dot {
  width: 10px;
  height: 10px;
  border: none;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  padding: 0;
}

.reviews-dot.active {
  background: var(--color-accent);
}

.reviews-attribution {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 1rem;
}

@media (max-width: 600px) {
  .reviews-carousel {
    padding: 0 40px;
  }
  .review-card {
    flex: 0 0 calc(100% - 1.5rem);
  }
  .reviews-arrow-prev {
    left: 2px;
  }
  .reviews-arrow-next {
    right: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reviews-track {
    transition: none;
  }
}