/* ============================================================
   AESTHETICA MED SPA — Global CSS
   Design Tokens · Reset · Typography · Utilities
   ============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,500;1,600&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;1,300;1,400;1,500&family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Design Tokens ── */
:root {
  /* Colors */
  --color-primary:       #1a1a1a;
  --color-primary-soft:  #2d2d2d;
  --color-accent:        #0c6b71;
  --color-accent-dark:   #085d64;
  --color-accent-light:  #438e90;
  --color-accent-pale:   #eaf0f4;
  --color-bg:            #faf8f5;
  --color-bg-soft:       #f3ede6;
  --color-bg-dark:       #111111;
  --color-bg-dark-2:     #181818;
  --color-white:         #ffffff;
  --color-text:          #2d2d2d;
  --color-text-muted:    #7a7a7a;
  --color-text-light:    #a8a8a8;
  --color-border:        rgba(12, 107, 113, 0.20);
  --color-border-light:  rgba(0, 0, 0, 0.08);
  --color-error:         #c0392b;
  --color-success:       #27ae60;

  /* Typography */
  --font-heading:  'Playfair Display', Georgia, serif;
  --font-accent:   'Cormorant Garamond', Georgia, serif;
  --font-body:     'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Fluid Type Scale */
  --text-xs:    clamp(0.7rem,   0.9vw, 0.8rem);
  --text-sm:    clamp(0.85rem,  1vw,   0.95rem);
  --text-base:  clamp(0.95rem,  1.1vw, 1.05rem);
  --text-md:    clamp(1.05rem,  1.3vw, 1.2rem);
  --text-lg:    clamp(1.15rem,  1.5vw, 1.35rem);
  --text-xl:    clamp(1.3rem,   2vw,   1.6rem);
  --text-2xl:   clamp(1.6rem,   2.5vw, 2rem);
  --text-3xl:   clamp(1.8rem,   3vw,   2.6rem);
  --text-4xl:   clamp(2.2rem,   4vw,   3.4rem);
  --text-5xl:   clamp(2.8rem,   5vw,   4.4rem);
  --text-6xl:   clamp(3.4rem,   6vw,   5.6rem);

  /* Spacing (4px base) */
  --space-1:   0.25rem;
  --space-2:   0.5rem;
  --space-3:   0.75rem;
  --space-4:   1rem;
  --space-5:   1.25rem;
  --space-6:   1.5rem;
  --space-8:   2rem;
  --space-10:  2.5rem;
  --space-12:  3rem;
  --space-16:  4rem;
  --space-20:  5rem;
  --space-24:  6rem;
  --space-32:  8rem;

  /* Border Radius */
  --radius-xs:   3px;
  --radius-sm:   6px;
  --radius-md:   12px;
  --radius-lg:   20px;
  --radius-xl:   32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs:     0 1px 4px rgba(0,0,0,0.06);
  --shadow-sm:     0 2px 12px rgba(0,0,0,0.07);
  --shadow-md:     0 4px 24px rgba(0,0,0,0.09);
  --shadow-lg:     0 8px 40px rgba(0,0,0,0.11);
  --shadow-xl:     0 16px 60px rgba(0,0,0,0.14);
  --shadow-gold:   0 8px 40px rgba(12,107,113,0.22);
  --shadow-hover:  0 16px 60px rgba(12,107,113,0.28);
  --shadow-card:   0 4px 24px rgba(0,0,0,0.07), 0 1px 4px rgba(0,0,0,0.04);
  --shadow-glow:   0 0 0 3px rgba(12,107,113,0.30);

  /* Transitions */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-Index Scale */
  --z-base:       0;
  --z-raised:     10;
  --z-dropdown:   200;
  --z-sticky:     400;
  --z-overlay:    600;
  --z-modal:      800;
  --z-toast:      900;
  --z-topmost:    9999;

  /* Layout */
  --container-sm:  640px;
  --container-md:  860px;
  --container-lg:  1100px;
  --container-xl:  1300px;
  --container-2xl: 1440px;
  --navbar-h:      80px;
  --topbar-h:      40px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-md); }

p {
  line-height: 1.75;
  color: var(--color-text);
}

/* ── Skip Link (Accessibility) ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: var(--z-topmost);
  transition: top var(--transition-fast);
}
.skip-link:focus {
  top: var(--space-4);
  outline: 3px solid var(--color-white);
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-8);
}

.container-sm  { max-width: var(--container-sm);  margin-inline: auto; padding-inline: var(--space-8); }
.container-md  { max-width: var(--container-md);  margin-inline: auto; padding-inline: var(--space-8); }
.container-lg  { max-width: var(--container-lg);  margin-inline: auto; padding-inline: var(--space-8); }
.container-2xl { max-width: var(--container-2xl); margin-inline: auto; padding-inline: var(--space-8); }

@media (max-width: 768px) {
  .container,
  .container-sm,
  .container-md,
  .container-lg,
  .container-2xl {
    padding-inline: var(--space-5);
  }
}

/* ── Section Spacing ── */
.section {
  padding-block: var(--space-24);
}
.section-sm {
  padding-block: var(--space-16);
}
.section-lg {
  padding-block: var(--space-32);
}

@media (max-width: 768px) {
  .section      { padding-block: var(--space-16); }
  .section-sm   { padding-block: var(--space-12); }
  .section-lg   { padding-block: var(--space-20); }
}

/* ── Section Labels / Eyebrows ── */
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-3);
}

.section-heading {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-4);
}

.section-subtext {
  font-size: var(--text-md);
  color: var(--color-text-muted);
  max-width: 620px;
  line-height: 1.8;
}

.section-header {
  margin-bottom: var(--space-12);
}
.section-header.center {
  text-align: center;
}
.section-header.center .section-subtext {
  margin-inline: auto;
}

/* ── Accent / Quote Text ── */
.text-accent-italic {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: var(--text-xl);
  color: var(--color-accent);
  line-height: 1.5;
}

.text-gold { color: var(--color-accent); }
.text-muted { color: var(--color-text-muted); }
.text-white { color: var(--color-white); }
.text-center { text-align: center; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition-fast);
}
.btn:hover::after {
  background: rgba(255,255,255,0.07);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(12,107,113,0.30);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.02);
}
.btn-primary:active {
  transform: translateY(0) scale(0.99);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.55);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.10);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline-gold {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-outline-gold:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold);
}

.btn-dark {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn-dark:hover {
  background: var(--color-primary-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-sm {
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-xs);
}
.btn-lg {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-base);
}

/* ── Grid Utilities ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-8); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-8); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* ── Flex Utilities ── */
.flex         { display: flex; }
.flex-center  { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col     { display: flex; flex-direction: column; }
.gap-2  { gap: var(--space-2); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

/* ── Card Base ── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

/* ── Image Zoom Wrapper ── */
.img-zoom {
  overflow: hidden;
  border-radius: var(--radius-md);
}
.img-zoom img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.img-zoom:hover img {
  transform: scale(1.07);
}

/* ── Gold Divider ── */
.divider-gold {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  margin-block: var(--space-5);
}
.divider-gold.center {
  margin-inline: auto;
}

/* ── Badge ── */
.badge {
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.badge-gold {
  background: var(--color-accent);
  color: var(--color-white);
}
.badge-dark {
  background: var(--color-primary);
  color: var(--color-white);
}

/* ── Star Rating ── */
.stars {
  display: inline-flex;
  gap: 2px;
  color: var(--color-accent);
  font-size: 1.1rem;
}

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  flex-wrap: wrap;
}
.breadcrumb a { transition: color var(--transition-fast); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { opacity: 0.4; }
.breadcrumb .current { color: var(--color-accent); font-weight: 500; }

/* ── Overlay ── */
.overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.overlay-dark {
  background: linear-gradient(135deg, rgba(17,17,17,0.72) 0%, rgba(17,17,17,0.42) 100%);
}
.overlay-dark-strong {
  background: linear-gradient(135deg, rgba(0,0,0,0.80) 0%, rgba(0,0,0,0.55) 100%);
}

/* ── Section Dark ── */
.section-dark {
  background: var(--color-bg-dark);
  color: var(--color-white);
}
.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}
.section-dark p,
.section-dark .section-subtext {
  color: rgba(255,255,255,0.72);
}
.section-dark .eyebrow {
  color: var(--color-accent-light);
}

/* ── Section Gold Tint ── */
.section-gold-tint {
  background: var(--color-accent-pale);
}

/* ── Back to Top ── */
#back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: var(--z-overlay);
  box-shadow: var(--shadow-gold);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  border: none;
}
#back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}
#back-to-top:hover {
  background: var(--color-accent-dark);
  transform: translateY(-3px);
}
#back-to-top svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ── Cookie Banner ── */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.85);
  padding: var(--space-4) var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  z-index: var(--z-toast);
  font-size: var(--text-sm);
  transform: translateY(100%);
  transition: transform var(--transition-slow);
  flex-wrap: wrap;
}
#cookie-banner.visible {
  transform: translateY(0);
}
#cookie-banner .cookie-actions {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ── Focus States (Accessibility) ── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* ── Selection ── */
::selection {
  background: rgba(12,107,113,0.20);
  color: var(--color-primary);
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb {
  background: var(--color-accent-light);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--color-accent); }

/* ── Visually Hidden (A11y) ── */
.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;
}

/* ── Responsive Helpers ── */
@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
  h1 { font-size: clamp(2rem, 8vw, 3.2rem); }
  h2 { font-size: clamp(1.6rem, 6vw, 2.4rem); }
  h3 { font-size: clamp(1.2rem, 4vw, 1.6rem); }
}
@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}