/* ============================================================
   KRISTIANNA CALLAHAN PIANO STUDIO — STYLESHEET
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --color-ivory:      #FEFCF6;
  --color-cream:      #F4EFE4;
  --color-black:      #1C1C1C;
  --color-gold:       #C5A04E;
  --color-gold-light: #E8D5A3;
  --color-gold-dark:  #9C7A30;
  --color-text-muted: #6B6053;
  --color-white:      #FFFFFF;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-body:  'Lato', 'Helvetica Neue', Arial, sans-serif;

  --max-width: 1140px;
  --header-height: 72px;
  --section-pad: 96px;
  --radius: 6px;
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-black);
  background: var(--color-ivory);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

/* ---------- Focus visible ---------- */
:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

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

.bg-cream {
  background-color: var(--color-cream);
}

.centered {
  text-align: center;
}

.section-heading {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-black);
  letter-spacing: 0.01em;
  margin-bottom: 12px;
}

.section-rule {
  width: 48px;
  height: 2px;
  background: var(--color-gold);
  margin-bottom: 48px;
}

.section-rule.centered {
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Button ---------- */
.btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--color-gold);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius);
  transition: background var(--transition), transform var(--transition);
}

.btn:hover,
.btn:focus-visible {
  background: var(--color-gold-dark);
  transform: translateY(-2px);
}


/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-ivory);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 2px 16px rgba(0,0,0,0.10);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-black);
  transition: opacity var(--transition);
}

.logo:hover { opacity: 0.75; }

.logo-icon {
  height: 60px;
  width: auto;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  letter-spacing: 0.05em;
  font-variant: small-caps;
  white-space: nowrap;
}

/* Nav links */
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 36px;
}

.main-nav a {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-black);
  position: relative;
  transition: color var(--transition);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-gold);
  transition: width var(--transition);
}

.main-nav a:hover { color: var(--color-gold-dark); }
.main-nav a:hover::after { width: 100%; }

/* Hamburger — hidden on desktop */
.nav-toggle { display: none; }

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 101;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-black);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hamburger active state */
.nav-toggle:checked ~ .nav-hamburger span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle:checked ~ .nav-hamburger span:nth-child(2) {
  opacity: 0;
}
.nav-toggle:checked ~ .nav-hamburger span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ============================================================
   HERO
   ============================================================ */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 100vh;
  padding-top: var(--header-height);
}

.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 64px 64px 64px 48px;
  background: linear-gradient(135deg, #C5A04E 0%, #9C7A30 100%);
  position: relative;
}

.hero-text::after {
  content: '';
  position: absolute;
  top: 0;
  right: -60px;
  width: 120px;
  height: 100%;
  background: linear-gradient(135deg, #C5A04E 0%, #9C7A30 100%);
  clip-path: polygon(0 0, 0% 100%, 100% 100%);
  z-index: 1;
}

.hero-text h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}

.hero-subtitle-line {
  display: block;
  font-style: italic;
  font-weight: 400;
  font-size: 0.85em;
  opacity: 0.9;
}

.hero-tagline {
  color: var(--color-gold-light);
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 40px;
  position: relative;
  z-index: 2;
}

.hero-text .btn {
  position: relative;
  z-index: 2;
  background: var(--color-white);
  color: var(--color-gold-dark);
}

.hero-text .btn:hover,
.hero-text .btn:focus-visible {
  background: var(--color-gold-light);
  color: var(--color-gold-dark);
  transform: translateY(-2px);
}

.hero-image {
  position: relative;
  overflow: hidden;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}


/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: center;
}

.about-photo img {
  width: 100%;
  max-width: 440px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius);
  box-shadow: 8px 8px 32px rgba(0,0,0,0.12);
}

.about-text h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.about-text p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.about-text p:last-child { margin-bottom: 0; }

.about-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.about-list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  min-width: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  margin-top: 9px;
}


/* ============================================================
   LESSONS
   ============================================================ */
.lessons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.lesson-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 20px 28px 36px;
  border-top: 3px solid var(--color-gold);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
  text-align: center;
  align-items: center;
  display: flex;
  flex-direction: column;
}

.lesson-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.10);
}

.lesson-icon {
  width: 48px;
  height: 48px;
  color: var(--color-gold);
  margin-bottom: 20px;
}

.lesson-icon svg {
  width: 100%;
  height: 100%;
}

.lesson-icon:has(img) {
  width: auto;
  height: auto;
}

.lesson-icon img {
  width: 101px;
  height: 101px;
  object-fit: contain;
}

.lesson-card h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.lesson-card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 12px;
}

.lesson-mode {
  font-size: 0.82rem !important;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-gold) !important;
  margin-bottom: 0 !important;
}


/* ============================================================
   WHY FAMILIES CHOOSE ME
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px 40px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-black);
}

.feature-icon {
  width: 20px;
  height: 20px;
  color: var(--color-gold);
  flex-shrink: 0;
  margin-top: 3px;
}


/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 36px 32px;
  position: relative;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.testimonial-card::before {
  content: '\201C';
  font-family: var(--font-serif);
  font-size: 5rem;
  line-height: 1;
  color: var(--color-gold-light);
  position: absolute;
  top: 12px;
  left: 24px;
  pointer-events: none;
}

.testimonial-card p {
  color: var(--color-text-muted);
  font-size: 0.97rem;
  font-style: italic;
  line-height: 1.75;
  margin-bottom: 20px;
  padding-top: 32px;
}

.testimonial-card cite {
  font-style: normal;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--color-black);
  letter-spacing: 0.03em;
}


/* ============================================================
   APPS
   ============================================================ */
.apps-intro {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 56px;
}

.apps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.app-card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  display: flex;
  gap: 28px;
  align-items: flex-start;
}

.app-icon-placeholder {
  width: 96px;
  height: 96px;
  min-width: 96px;
  border-radius: 20px;
  background: var(--color-cream);
  border: 2px dashed var(--color-gold-light);
}

.app-icon {
  width: 96px;
  height: 96px;
  min-width: 96px;
  border-radius: 20px;
  object-fit: cover;
}

.app-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.app-info h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 0;
}

.app-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0;
}

.app-info p:not(.app-subtitle) {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin: 0;
}

.app-store-btn {
  display: inline-block;
  margin-top: 8px;
  transition: opacity var(--transition), transform var(--transition);
}

.app-store-btn:hover {
  opacity: 0.8;
  transform: translateY(-1px);
}

.app-store-btn img {
  width: 130px;
  height: auto;
  display: block;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.contact-info h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-intro {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 36px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-details svg {
  width: 20px;
  height: 20px;
  color: var(--color-gold);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-details a {
  color: var(--color-gold-dark);
  font-weight: 400;
  transition: color var(--transition);
}

.contact-details a:hover { color: var(--color-black); }

.contact-details span,
.contact-details a {
  font-size: 1rem;
  color: var(--color-black);
}

.contact-details a { color: var(--color-gold-dark); }

.contact-photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 8px 8px 32px rgba(0,0,0,0.12);
}


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-black);
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 28px 32px;
  font-size: 0.875rem;
  letter-spacing: 0.04em;
}


/* ============================================================
   RESPONSIVE — TABLET (≤ 900px)
   ============================================================ */
@media (max-width: 900px) {
  :root { --section-pad: 72px; }

  .lessons-grid,
  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
    margin: 0 auto;
  }

  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
}


/* ============================================================
   RESPONSIVE — MOBILE (≤ 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root { --section-pad: 60px; }

  /* Nav hamburger */
  .nav-hamburger {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--color-ivory);
    box-shadow: -4px 0 24px rgba(0,0,0,0.12);
    padding: calc(var(--header-height) + 16px) 40px 40px;
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 100;
  }

  .nav-toggle:checked ~ .main-nav {
    transform: translateX(0);
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 28px;
  }

  .main-nav a {
    font-size: 1rem;
  }

  /* Hero stacks: image on top, text below */
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-image {
    height: 55vw;
    min-height: 260px;
    order: -1;
  }

  .hero-text {
    padding: 48px 32px;
    align-items: center;
    text-align: center;
  }

  .hero-text::after { display: none; }

  /* About stacks */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-photo img {
    max-width: 320px;
    margin: 0 auto;
  }

  /* Apps stacks */
  .apps-grid {
    grid-template-columns: 1fr;
  }

  .app-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .app-icon,
  .app-icon-placeholder {
    width: 80px;
    height: 80px;
    min-width: 80px;
  }

  .app-store-btn {
    margin: 8px auto 0;
  }

  /* Contact stacks */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact-photo {
    order: -1;
  }

  .container {
    padding: 0 20px;
  }

  .header-inner {
    padding: 0 20px;
  }
}


/* ============================================================
   RESPONSIVE — SMALL MOBILE (≤ 480px)
   ============================================================ */
@media (max-width: 480px) {
  :root { --section-pad: 48px; }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero-text {
    padding: 40px 20px;
  }

  .hero-text h1 {
    font-size: 1.9rem;
  }
}