/* ==========================================================
   Iris Paints — Shared Stylesheet
   Mobile-first. Breakpoints: 480px · 640px · 768px · 960px
   ========================================================== */

/* ─── Design Tokens ─── */
:root {
  --iris-purple:   #C41E1E;
  --iris-lavender: #E8B84B;
  --iris-mid:      #D4500A;
  --iris-dark:     #2A0808;
  --iris-cream:    #FAF6F0;

  --text-dark:  #1a0505;
  --text-mid:   #4a1a1a;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  --radius-sm:   8px;
  --radius-md:   16px;
  --radius-lg:   28px;
  --radius-full: 9999px;

  --shadow-sm:  0 2px 8px  rgba(43, 5, 5, 0.08);
  --shadow-md:  0 8px 24px rgba(43, 5, 5, 0.12);
  --shadow-lg:  0 16px 48px rgba(43, 5, 5, 0.18);

  --transition: 0.25s ease;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-dark);
  background: var(--iris-cream);
}

img { max-width: 100%; height: auto; display: block; }
a   { color: inherit; text-decoration: none; }

/* ─── Layout ─── */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

@media (min-width: 480px)  { .container { padding: 0 20px; } }
@media (min-width: 768px)  { .container { padding: 0 24px; } }

.section     { padding: 48px 0; }
.section--sm { padding: 32px 0; }

@media (min-width: 768px) {
  .section     { padding: 68px 0; }
  .section--sm { padding: 48px 0; }
}

@media (min-width: 960px) {
  .section     { padding: 88px 0; }
  .section--sm { padding: 56px 0; }
}

/* ─── Navigation ─── */
.nav {
  background: var(--iris-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

@media (min-width: 768px) { .nav__inner { height: 70px; } }

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--iris-lavender);
  letter-spacing: 0.04em;
  transition: opacity var(--transition);
}

@media (min-width: 768px) { .nav__logo { font-size: 1.3rem; } }
.nav__logo:hover { opacity: 0.8; }

/* Mobile: hidden, revealed by toggle */
.nav__links {
  display: none;
  position: absolute;
  top: 60px;
  left: 0;
  right: 0;
  background: var(--iris-dark);
  flex-direction: column;
  gap: 0;
  padding: 8px 0 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  list-style: none;
}

.nav__links.open { display: flex; }

.nav__links li a {
  display: block;
  padding: 13px 24px;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav__links li a:hover,
.nav__links li a.active { color: var(--iris-lavender); }

.nav__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 1.4rem;
  padding: 4px 6px;
  line-height: 1;
}

/* Tablet+: always visible horizontal nav */
@media (min-width: 768px) {
  .nav__links {
    display: flex;
    position: static;
    flex-direction: row;
    gap: 32px;
    padding: 0;
    background: none;
    border: none;
    box-shadow: none;
    top: auto;
  }

  .nav__links li a {
    display: inline;
    padding: 0 0 3px;
    font-size: 0.875rem;
    position: relative;
  }

  .nav__links li a::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--iris-lavender);
    border-radius: 2px;
    transition: width var(--transition);
  }

  .nav__links li a:hover::after,
  .nav__links li a.active::after { width: 100%; }

  .nav__toggle { display: none; }
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
  min-height: 44px;
}

@media (min-width: 480px) { .btn { padding: 13px 30px; font-size: 0.9rem; } }

.btn--primary { background: var(--iris-purple); color: white; }
.btn--primary:hover { background: #6a3d92; transform: translateY(-1px); box-shadow: var(--shadow-md); }

.btn--outline { background: transparent; color: var(--iris-purple); border-color: var(--iris-purple); }
.btn--outline:hover { background: var(--iris-purple); color: white; }

.btn--light { background: white; color: var(--iris-purple); }
.btn--light:hover { background: var(--iris-lavender); color: var(--iris-dark); }

/* ─── Typography helpers ─── */
.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--iris-purple);
  margin-bottom: 10px;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--iris-dark);
  margin-bottom: 16px;
}

.section-body {
  color: var(--text-mid);
  font-size: 1rem;
  line-height: 1.85;
  max-width: 600px;
}

/* ─── Photo placeholder ─── */
.photo-placeholder {
  background: linear-gradient(135deg, #ede0f7 0%, #d8c0f0 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--iris-dark);
  font-size: 0.78rem;
  font-weight: 500;
  opacity: 0.75;
  gap: 8px;
  text-align: center;
  padding: 16px;
}

.photo-placeholder::before { content: 'PHOTO'; font-size: 0.7rem; opacity: 0.55; letter-spacing: 0.1em; }

/* ─── Footer ─── */
.footer {
  background: var(--iris-dark);
  color: rgba(255, 255, 255, 0.65);
  padding: 44px 0 24px;
  margin-top: 52px;
}

@media (min-width: 768px) {
  .footer { padding: 60px 0 32px; margin-top: 80px; }
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 32px;
}

@media (min-width: 640px) {
  .footer__inner { grid-template-columns: 1fr 1fr; gap: 36px; margin-bottom: 40px; }
}

@media (min-width: 960px) {
  .footer__inner { grid-template-columns: 1.2fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
}

.footer__brand-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--iris-lavender);
  margin-bottom: 8px;
}

.footer__tagline { font-size: 0.875rem; opacity: 0.6; }

.footer__links h4,
.footer__contact h4 {
  color: white;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
}

.footer__links ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer__links a {
  font-size: 0.875rem;
  opacity: 0.65;
  transition: opacity var(--transition), color var(--transition);
}
.footer__links a:hover { opacity: 1; color: var(--iris-lavender); }

.footer__contact p { font-size: 0.875rem; line-height: 1.9; }

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 0.78rem;
  opacity: 0.4;
}