/* =============================================================
   BRYANT PIANO SERVICE — Styles

   Structure:
     1. Reset & Base
     2. Typography
     3. Layout (container, 12-col grid, column spans)
     4. Section schemes (light / gray / dark)
     5. Nav
     6. Hero
     7. Page Header (inner pages)
     8. Cards
     9. Buttons
    10. Forms
    11. Footer
    12. Responsive overrides
   ============================================================= */


/* -------------------------------------------------------------
   1. Reset & Base
   ------------------------------------------------------------- */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--off-white);
  background: var(--black);
}

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

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


/* -------------------------------------------------------------
   2. Typography
   ------------------------------------------------------------- */

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.15;
}

h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.125rem; }

p {
  max-width: 60ch;
}

.label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.muted {
  opacity: 0.6;
}


/* -------------------------------------------------------------
   3. Layout — Container & 12-Column Grid
   ------------------------------------------------------------- */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-pad);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
  align-items: start;
}

/* Column span classes — use these in HTML to control width */
.col-1  { grid-column: span 1;  }
.col-2  { grid-column: span 2;  }
.col-3  { grid-column: span 3;  }
.col-4  { grid-column: span 4;  }
.col-5  { grid-column: span 5;  }
.col-6  { grid-column: span 6;  }
.col-7  { grid-column: span 7;  }
.col-8  { grid-column: span 8;  }
.col-9  { grid-column: span 9;  }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }

/* Center a column with auto side margins */
.col-offset-2 { grid-column: 3 / span 8; }


/* -------------------------------------------------------------
   4. Section Schemes
   ------------------------------------------------------------- */

.section {
  padding: var(--section-pad) 0;
}

/* Light — white background */
.section--light {
  background: var(--light-bg);
  color: var(--light-text);
}
.section--light .muted     { color: var(--light-muted); opacity: 1; }
.section--light hr         { border-color: var(--light-border); }
.section--light .card      { border-color: var(--light-border); }

/* Gray — subtle off-white background */
.section--gray {
  background: var(--gray-bg);
  color: var(--gray-text);
}
.section--gray .muted      { color: var(--gray-muted); opacity: 1; }
.section--gray hr          { border-color: var(--gray-border); }
.section--gray .card       { border-color: var(--gray-border); }

/* Dark — black background */
.section--dark {
  background: var(--dark-bg);
  color: var(--dark-text);
}
.section--dark .muted      { color: var(--dark-muted); opacity: 1; }
.section--dark hr          { border-color: var(--dark-border); }
.section--dark .card       { border-color: var(--dark-border); }


/* -------------------------------------------------------------
   5. Nav
   ------------------------------------------------------------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: var(--black);
  color: var(--off-white);
  display: flex;
  align-items: center;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-pad);
}

.nav__logo {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--off-white);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav__links a {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--off-white);
  opacity: 0.75;
  transition: opacity var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  opacity: 1;
}

/* "Book Now" link styled as a button in the nav */
.nav__links .btn-nav {
  opacity: 1;
  padding: 0.45rem 1.1rem;
  white-space: nowrap;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: var(--radius);
  transition: background var(--transition), border-color var(--transition);
}

.nav__links .btn-nav:hover {
  background: var(--off-white);
  color: var(--black);
  border-color: var(--off-white);
}

/* Hamburger (mobile) */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--off-white);
  transition: var(--transition);
}

/* Push page content below fixed nav */
.nav-spacer {
  height: var(--nav-height);
}


/* -------------------------------------------------------------
   6. Hero
   ------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--black);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  opacity: 0.45;
  animation: hero-pan 40s ease-in-out infinite alternate;
}

@keyframes hero-pan {
  from { background-position: 30% center; }
  to   { background-position: 70% center; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__bg { animation: none; }
}

.hero__content {
  position: relative;
  z-index: 1;
  color: var(--off-white);
}

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-bottom: 1rem;
}

.hero__title {
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: 1.125rem;
  opacity: 0.7;
  margin-bottom: 2.5rem;
}


/* -------------------------------------------------------------
   7. Page Header (used on About, Services, Contact)
   ------------------------------------------------------------- */

.page-header {
  background: var(--black);
  color: var(--off-white);
  padding: clamp(3rem, 6vw, 5rem) 0 clamp(2.5rem, 5vw, 4rem);
}

.page-header__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-mid);
  margin-bottom: 0.75rem;
}

.page-header__title {
  font-size: clamp(2rem, 5vw, 4rem);
}


/* -------------------------------------------------------------
   8. Cards
   ------------------------------------------------------------- */

.card {
  border: 1px solid;
  padding: 2rem;
  border-radius: var(--radius);
  background: var(--gray-bg);
}

.card__price {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 400;
  margin-bottom: 0.25rem;
}

.card__name {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid;
}

.card__body {
  font-size: 0.95rem;
  line-height: 1.7;
}

.card__body ul {
  list-style: none;
  margin-top: 1rem;
}

.card__body ul li {
  padding: 0.35rem 0;
  padding-left: 1rem;
  position: relative;
}

.card__body ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  opacity: 0.4;
}

/* Image card */
.img-card {
  overflow: hidden;
  border-radius: var(--radius);
}

.img-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.img-card:hover img {
  transform: scale(1.02);
}


/* -------------------------------------------------------------
   9. Buttons
   ------------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

/* Solid — use on dark backgrounds */
.btn--white {
  background: var(--off-white);
  color: var(--black);
  border: 1px solid var(--off-white);
}
.btn--white:hover {
  background: transparent;
  color: var(--off-white);
}

/* Outline — use on light backgrounds */
.btn--dark {
  background: var(--black);
  color: var(--off-white);
  border: 1px solid var(--black);
}
.btn--dark:hover {
  background: transparent;
  color: var(--black);
}

/* Ghost — transparent with border */
.btn--ghost-white {
  background: transparent;
  color: var(--off-white);
  border: 1px solid rgba(255,255,255,0.5);
}
.btn--ghost-white:hover {
  background: var(--off-white);
  color: var(--black);
  border-color: var(--off-white);
}

.btn--ghost-dark {
  background: transparent;
  color: var(--black);
  border: 1px solid rgba(0,0,0,0.3);
}
.btn--ghost-dark:hover {
  background: var(--black);
  color: var(--off-white);
  border-color: var(--black);
}


/* -------------------------------------------------------------
   10. Forms
   ------------------------------------------------------------- */

.form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

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

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

.field label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.7;
}

.field input,
.field select,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  background: transparent;
  border: 1px solid;
  border-radius: var(--radius);
  color: inherit;
  border-color: inherit;
  transition: border-color var(--transition);
  width: 100%;
}

/* Light scheme form inputs */
.section--light .field input,
.section--light .field select,
.section--light .field textarea {
  border-color: var(--light-border);
}
.section--light .field input:focus,
.section--light .field select:focus,
.section--light .field textarea:focus {
  border-color: var(--black);
  outline: none;
}

/* Dark scheme form inputs */
.section--dark .field input,
.section--dark .field select,
.section--dark .field textarea {
  border-color: var(--dark-border);
  color: var(--off-white);
}
.section--dark .field input:focus,
.section--dark .field select:focus,
.section--dark .field textarea:focus {
  border-color: var(--off-white);
  outline: none;
}

/* Gray scheme form inputs */
.section--gray .field input,
.section--gray .field select,
.section--gray .field textarea {
  border-color: var(--gray-border);
  background: var(--white);
}
.section--gray .field input:focus,
.section--gray .field select:focus,
.section--gray .field textarea:focus {
  border-color: var(--black);
  outline: none;
}

.field textarea {
  resize: vertical;
  min-height: 140px;
}

.field select {
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}


/* -------------------------------------------------------------
   11. Footer
   ------------------------------------------------------------- */

.footer {
  background: var(--black);
  color: var(--off-white);
  padding: clamp(3rem, 5vw, 4rem) 0;
  border-top: 1px solid var(--dark-border);
}

.footer__logo {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.footer__tagline {
  font-size: 0.875rem;
  opacity: 0.5;
  margin-bottom: 2rem;
}

.footer__contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer__contact li {
  font-size: 0.9rem;
  opacity: 0.75;
}

.footer__contact a:hover {
  opacity: 1;
}

.footer__nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: flex-end;
}

.footer__nav a {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.5;
  transition: opacity var(--transition);
}

.footer__nav a:hover {
  opacity: 1;
}

.footer__bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--dark-border);
  font-size: 0.75rem;
  opacity: 0.4;
}

hr {
  border: none;
  border-top: 1px solid;
  opacity: 0.2;
  margin: 2rem 0;
}


/* -------------------------------------------------------------
   12. Responsive Overrides
   ------------------------------------------------------------- */

/* Tablet — collapse wider columns */
@media (max-width: 900px) {
  .col-4 { grid-column: span 6; }
  .col-3 { grid-column: span 6; }
  .col-offset-2 { grid-column: span 12; }
  .footer__nav { align-items: flex-start; }
}

/* Nav collapses to burger earlier than the rest of mobile layout, so the
   Book Now button never runs off the edge on tablet widths. */
@media (max-width: 800px) {
  .nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--black);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem var(--page-pad) 2rem;
    gap: 1.25rem;
    border-top: 1px solid var(--dark-border);
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__toggle {
    display: flex;
  }
}

/* Mobile */
@media (max-width: 600px) {
  [class*="col-"] { grid-column: span 12; }

  .form-row {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: calc(100vh - var(--nav-height));
    min-height: calc(100dvh - var(--nav-height));
  }
}