/* ==========================================================================
   Dentify Alta Estética & Ortodoncia - Production Stylesheet
   Compilado, purgado y optimizado para máxima velocidad y Core Web Vitals.
   NOTA DE PRODUCCIÓN: Verificar que el servidor web (Nginx, Apache, LiteSpeed,
   Cloudflare o Vercel) tenga activa la compresión GZIP o Brotli (Content-Encoding)
   para servir este archivo con la menor latencia de transferencia.
   ========================================================================== */

/* 1. CSS VARIABLES & DESIGN TOKENS */
:root {
  --primary: #0A3D61;
  --accent: #46BDD0;
  --surface: #FAF9F9;
  --surface-variant: #E5E4E4;
  --on-surface: #1A1C1C;
  --on-surface-variant: #42474E;
  --outline-variant: #C2C7CF;
  --dark-bg: #051C2D;
  --dark-surface: #082B46;
  --dark-surface-variant: #0A3D61;
  --font-display: 'Montserrat', sans-serif;
  --font-body: 'Lato', sans-serif;
  --section-gap: 80px;
  --container-max: 1200px;
  --margin-desktop: 80px;
  --margin-mobile: 24px;
}

/* 2. BASE RESET & PREFLIGHT */
*, ::before, ::after {
  box-sizing: border-box;
  border-width: 0;
  border-style: solid;
  border-color: #e5e7eb;
}
html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  tab-size: 4;
  font-family: var(--font-body);
  scroll-behavior: smooth;
}
body {
  margin: 0;
  line-height: 1.6;
  background-color: var(--surface);
  color: var(--primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  transition: background-color 0.3s, color 0.3s;
}
html.dark body {
  background-color: var(--dark-bg);
  color: #ffffff;
}
hr { height: 0; color: inherit; border-top-width: 1px; }
abbr:where([title]) { text-decoration: underline dotted; }
h1, h2, h3, h4, h5, h6 { font-size: inherit; font-weight: inherit; margin: 0; font-family: var(--font-display); }
a { color: inherit; text-decoration: inherit; }
b, strong { font-weight: bolder; }
code, kbd, samp, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: 1em; }
small { font-size: 80%; }
sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; }
sub { bottom: -0.25em; }
sup { top: -0.5em; }
table { text-indent: 0; border-color: inherit; border-collapse: collapse; }
button, input, optgroup, select, textarea {
  font-family: inherit;
  font-size: 100%;
  font-weight: inherit;
  line-height: inherit;
  color: inherit;
  margin: 0;
  padding: 0;
}
button, select { text-transform: none; }
button, [type='button'], [type='reset'], [type='submit'] { -webkit-appearance: button; background-color: transparent; background-image: none; cursor: pointer; }
:-moz-focusring { outline: auto; }
:-moz-ui-invalid { box-shadow: none; }
progress { vertical-align: baseline; }
::-webkit-inner-spin-button, ::-webkit-outer-spin-button { height: auto; }
[type='search'] { -webkit-appearance: textfield; outline-offset: -2px; }
::-webkit-search-decoration { -webkit-appearance: none; }
::-webkit-file-upload-button { -webkit-appearance: button; font: inherit; }
summary { display: list-item; }
blockquote, dl, dd, h1, h2, h3, h4, h5, h6, hr, figure, p, pre { margin: 0; }
fieldset { margin: 0; padding: 0; }
legend { padding: 0; }
ol, ul, menu { list-style: none; margin: 0; padding: 0; }
dialog { padding: 0; }
textarea { resize: vertical; }
input::placeholder, textarea::placeholder { opacity: 1; color: #9ca3af; }
button, [role="button"] { cursor: pointer; }
:disabled { cursor: default; }
img, svg, video, canvas, audio, iframe, embed, object { display: block; vertical-align: middle; }
img, video { max-width: 100%; height: auto; }
[hidden] { display: none !important; }

/* 3. LAYOUT & CONTAINERS */
.max-w-container-max { max-width: 1200px; }
.max-w-xs { max-width: 20rem; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-full { max-width: 100%; }
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-4 { width: 1rem; } .h-4 { height: 1rem; }
.w-5 { width: 1.25rem; } .h-5 { height: 1.25rem; }
.w-6 { width: 1.5rem; } .h-6 { height: 1.5rem; }
.w-8 { width: 2rem; } .h-8 { height: 2rem; }
.w-10 { width: 2.5rem; } .h-10 { height: 2.5rem; }
.w-12 { width: 3rem; } .h-12 { height: 3rem; }
.w-16 { width: 4rem; } .h-16 { height: 4rem; }
.w-20 { width: 5rem; } .h-20 { height: 5rem; }
.w-24 { width: 6rem; } .h-24 { height: 6rem; }
.w-56 { width: 14rem; }
.w-64 { width: 16rem; } .h-64 { height: 16rem; }
.h-1\.5 { height: 0.375rem; }
.h-12 { height: 3rem; }
.h-24 { height: 6rem; }
.h-32 { height: 8rem; }
.min-h-screen { min-height: 100vh; }
.min-h-\[1000px\] { min-height: 1000px; }
.aspect-\[4\/3\] { aspect-ratio: 4 / 3; }
.aspect-square { aspect-ratio: 1 / 1; }

/* 4. FLEXBOX & GRID */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1 1 0%; }
.shrink-0 { flex-shrink: 0; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }
.gap-8 { gap: 2rem; }
.gap-10 { gap: 2.5rem; }
.gap-12 { gap: 3rem; }
.gap-16 { gap: 4rem; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* 5. SPACING */
.mx-auto { margin-left: auto; margin-right: auto; }
.ml-auto { margin-left: auto; }
.mr-auto { margin-right: auto; }
.ml-2 { margin-left: 0.5rem; }
.mr-4 { margin-right: 1rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-10 { margin-bottom: 2.5rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mb-20 { margin-bottom: 5rem; }
.mb-section-gap { margin-bottom: 80px; }
.px-margin-mobile { padding-left: 24px; padding-right: 24px; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }
.p-10 { padding: 2.5rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-3\.5 { padding-left: 0.875rem; padding-right: 0.875rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }
.px-10 { padding-left: 2.5rem; padding-right: 2.5rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-3\.5 { padding-top: 0.875rem; padding-bottom: 0.875rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
.py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.pt-6 { padding-top: 1.5rem; }
.pt-12 { padding-top: 3rem; }
.pt-24 { padding-top: 6rem; }
.pb-1 { padding-bottom: 0.25rem; }
.pb-2 { padding-bottom: 0.5rem; }
.pb-8 { padding-bottom: 2rem; }
.pb-10 { padding-bottom: 2.5rem; }
.pb-12 { padding-bottom: 3rem; }
.pl-4 { padding-left: 1rem; }
.pl-5 { padding-left: 1.25rem; }
.pl-\[52px\] { padding-left: 52px; }
.pr-12 { padding-right: 3rem; }
.space-y-1 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.25rem; }
.space-y-2 > :not([hidden]) ~ :not([hidden]) { margin-top: 0.5rem; }
.space-y-4 > :not([hidden]) ~ :not([hidden]) { margin-top: 1rem; }
.space-y-5 > :not([hidden]) ~ :not([hidden]) { margin-top: 1.25rem; }
.space-y-6 > :not([hidden]) ~ :not([hidden]) { margin-top: 1.5rem; }
.space-y-8 > :not([hidden]) ~ :not([hidden]) { margin-top: 2rem; }

/* 6. TYPOGRAPHY */
.font-display { font-family: var(--font-display); }
.font-body { font-family: var(--font-body); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-black { font-weight: 900; }
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.uppercase { text-transform: uppercase; }
.italic { font-style: italic; }
.underline { text-decoration-line: underline; }
.tracking-wide { letter-spacing: 0.025em; }
.tracking-wider { letter-spacing: 0.05em; }
.tracking-widest { letter-spacing: 0.1em; }
.leading-none { line-height: 1; }
.leading-tight { line-height: 1.25; }
.leading-relaxed { line-height: 1.625; }
.leading-\[1\.3\] { line-height: 1.3; }
.leading-\[1\.6\] { line-height: 1.6; }
.text-\[10px\] { font-size: 10px; }
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.text-5xl { font-size: 3rem; line-height: 1; }
.text-7xl { font-size: 4.5rem; line-height: 1; }

/* 7. COLORS & THEME */
.text-primary { color: #0A3D61; }
.text-accent { color: #46BDD0; }
.text-white { color: #ffffff; }
.text-black { color: #000000; }
.text-red-500 { color: #ef4444; }
.text-primary\/70 { color: rgba(10, 61, 97, 0.7); }
.text-primary\/80 { color: rgba(10, 61, 97, 0.8); }
.text-primary\/30 { color: rgba(10, 61, 97, 0.3); }
.text-white\/40 { color: rgba(255, 255, 255, 0.4); }
.text-white\/60 { color: rgba(255, 255, 255, 0.6); }
.text-white\/70 { color: rgba(255, 255, 255, 0.7); }
.text-white\/80 { color: rgba(255, 255, 255, 0.8); }
.text-white\/90 { color: rgba(255, 255, 255, 0.9); }
.text-on-surface { color: #1A1C1C; }
.text-on-surface-variant { color: #42474E; }
.text-on-surface-variant\/50 { color: rgba(66, 71, 78, 0.5); }
.text-on-surface-variant\/60 { color: rgba(66, 71, 78, 0.6); }
.text-on-surface-variant\/70 { color: rgba(66, 71, 78, 0.7); }
.text-on-surface-variant\/80 { color: rgba(66, 71, 78, 0.8); }

html.dark .dark\:text-white { color: #ffffff; }
html.dark .dark\:text-white\/70 { color: rgba(255, 255, 255, 0.7); }
html.dark .dark\:text-white\/80 { color: rgba(255, 255, 255, 0.8); }
html.dark .dark\:text-white\/20 { color: rgba(255, 255, 255, 0.2); }
html.dark .dark\:text-white\/50 { color: rgba(255, 255, 255, 0.5); }
html.dark .dark\:text-white\/60 { color: rgba(255, 255, 255, 0.6); }

/* Backgrounds */
.bg-primary { background-color: #0A3D61; }
.bg-accent { background-color: #46BDD0; }
.bg-surface { background-color: #FAF9F9; }
.bg-surface-variant { background-color: #E5E4E4; }
.bg-white { background-color: #ffffff; }
.bg-transparent { background-color: transparent; }
.bg-accent\/10 { background-color: rgba(70, 189, 208, 0.1); }
.bg-accent\/20 { background-color: rgba(70, 189, 208, 0.2); }
.bg-accent\/30 { background-color: rgba(70, 189, 208, 0.3); }
.bg-primary\/5 { background-color: rgba(10, 61, 97, 0.05); }
.bg-primary\/10 { background-color: rgba(10, 61, 97, 0.1); }
.bg-primary\/60 { background-color: rgba(10, 61, 97, 0.6); }
.bg-surface-variant\/20 { background-color: rgba(229, 228, 228, 0.2); }
.bg-surface-variant\/50 { background-color: rgba(229, 228, 228, 0.5); }
.bg-outline-variant\/20 { background-color: rgba(194, 199, 207, 0.2); }
.bg-outline-variant\/30 { background-color: rgba(194, 199, 207, 0.3); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.1); }
.bg-white\/90 { background-color: rgba(255, 255, 255, 0.9); }
.bg-white\/95 { background-color: rgba(255, 255, 255, 0.95); }

html.dark .dark\:bg-dark-bg { background-color: #051C2D; }
html.dark .dark\:bg-dark-bg\/90 { background-color: rgba(5, 28, 45, 0.9); }
html.dark .dark\:bg-dark-bg\/95 { background-color: rgba(5, 28, 45, 0.95); }
html.dark .dark\:bg-dark-surface { background-color: #082B46; }
html.dark .dark\:bg-dark-surface\/50 { background-color: rgba(8, 43, 70, 0.5); }
html.dark .dark\:bg-dark-surface-variant { background-color: #0A3D61; }
html.dark .dark\:bg-white\/5 { background-color: rgba(255, 255, 255, 0.05); }

/* Gradients */
.bg-gradient-to-r { background-image: linear-gradient(to right, var(--tw-gradient-stops)); }
.bg-gradient-to-br { background-image: linear-gradient(to bottom right, var(--tw-gradient-stops)); }
.from-primary { --tw-gradient-from: #0A3D61; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(10, 61, 97, 0)); }
.via-\[\#0A3D61\] { --tw-gradient-stops: var(--tw-gradient-from), #0A3D61, var(--tw-gradient-to, rgba(10, 61, 97, 0)); }
.to-\[\#041E32\] { --tw-gradient-to: #041E32; }
.from-white { --tw-gradient-from: #ffffff; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(255, 255, 255, 0)); }
.via-surface { --tw-gradient-stops: var(--tw-gradient-from), #FAF9F9, var(--tw-gradient-to, rgba(250, 249, 249, 0)); }
.to-accent\/5 { --tw-gradient-to: rgba(70, 189, 208, 0.05); }

html.dark .dark\:from-dark-surface { --tw-gradient-from: #082B46; --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(8, 43, 70, 0)); }
html.dark .dark\:via-primary { --tw-gradient-stops: var(--tw-gradient-from), #0A3D61, var(--tw-gradient-to, rgba(10, 61, 97, 0)); }
html.dark .dark\:to-dark-surface-variant { --tw-gradient-to: #0A3D61; }

/* 8. BORDERS & SHADOWS */
.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-4 { border-width: 4px; }
.border-t { border-top-width: 1px; }
.border-b { border-bottom-width: 1px; }
.border-b-2 { border-bottom-width: 2px; }
.border-l { border-left-width: 1px; }
.border-none { border-style: none; }
.border-accent { border-color: #46BDD0; }
.border-accent\/20 { border-color: rgba(70, 189, 208, 0.2); }
.border-accent\/30 { border-color: rgba(70, 189, 208, 0.3); }
.border-accent\/40 { border-color: rgba(70, 189, 208, 0.4); }
.border-accent\/50 { border-color: rgba(70, 189, 208, 0.5); }
.border-t-accent { border-top-color: #46BDD0; }
.border-outline-variant { border-color: #C2C7CF; }
.border-outline-variant\/20 { border-color: rgba(194, 199, 207, 0.2); }
.border-outline-variant\/30 { border-color: rgba(194, 199, 207, 0.3); }
.border-outline-variant\/40 { border-color: rgba(194, 199, 207, 0.4); }
.border-outline-variant\/50 { border-color: rgba(194, 199, 207, 0.5); }
.border-white\/10 { border-color: rgba(255, 255, 255, 0.1); }
.border-white\/20 { border-color: rgba(255, 255, 255, 0.2); }
.border-red-500 { border-color: #ef4444; }

html.dark .dark\:border-white\/10 { border-color: rgba(255, 255, 255, 0.1); }
html.dark .dark\:border-white\/20 { border-color: rgba(255, 255, 255, 0.2); }

.rounded-lg { border-radius: 12px; }
.rounded-xl { border-radius: 16px; }
.rounded-2xl { border-radius: 24px; }
.rounded-3xl { border-radius: 32px; }
.rounded-full { border-radius: 9999px; }
.rounded-t-2xl { border-top-left-radius: 24px; border-top-right-radius: 24px; }
.rounded-b-2xl { border-bottom-left-radius: 24px; border-bottom-right-radius: 24px; }
.rounded-bl-xl { border-bottom-left-radius: 16px; }

.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-md { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }

/* 9. POSITIONING & Z-INDEX */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.top-0 { top: 0px; }
.bottom-0 { bottom: 0px; }
.bottom-6 { bottom: 1.5rem; }
.bottom-20 { bottom: 5rem; }
.left-0 { left: 0px; }
.right-0 { right: 0px; }
.right-4 { right: 1rem; }
.right-6 { right: 1.5rem; }
.top-6 { top: 1.5rem; }
.top-24 { top: 6rem; }
.top-1\/2 { top: 50%; }
.left-1\/2 { left: 50%; }
.bottom-full { bottom: 100%; }
.right-full { right: 100%; }
.inset-0 { top: 0px; right: 0px; bottom: 0px; left: 0px; }
.-left-\[9999px\] { left: -9999px; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-\[60\] { z-index: 60; }
.z-\[90\] { z-index: 90; }
.z-\[100\] { z-index: 100; }
.z-\[110\] { z-index: 110; }
.z-\[120\] { z-index: 120; }
.z-\[99999\] { z-index: 99999; }
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }
.cursor-pointer { cursor: pointer; }
.cursor-help { cursor: help; }

/* 10. TRANSFORMS, TRANSITIONS & EFFECTS */
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-transform { transition-property: transform; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-opacity { transition-property: opacity; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.duration-300 { transition-duration: 300ms; }
.duration-500 { transition-duration: 500ms; }
.duration-700 { transition-duration: 700ms; }
.ease-out { transition-timing-function: cubic-bezier(0, 0, 0.2, 1); }
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-60 { opacity: 0.6; }
.opacity-70 { opacity: 0.7; }
.opacity-80 { opacity: 0.8; }
.opacity-90 { opacity: 0.9; }
.opacity-100 { opacity: 1; }
.invisible { visibility: hidden; }
.visible { visibility: visible; }
.backdrop-blur-sm { backdrop-filter: blur(4px); }
.backdrop-blur-md { backdrop-filter: blur(12px); }
.blur-3xl { filter: blur(64px); }
.grayscale { filter: grayscale(100%); }
.object-cover { object-fit: cover; }
.object-contain { object-fit: contain; }
.overflow-hidden { overflow: hidden; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-auto { overflow-y: auto; }
.-translate-y-1\/2 { transform: translateY(-50%); }
.-translate-x-1\/2 { transform: translateX(-50%); }
.translate-x-1\/3 { transform: translateX(33.333333%); }
.translate-y-\[150\%\] { transform: translateY(150%); }
.rotate-3 { transform: rotate(3deg); }
.rotate-45 { transform: rotate(45deg); }
.scale-50 { transform: scale(0.5); }
.fill-current { fill: currentColor; }
.drop-shadow-md { filter: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.07)) drop-shadow(0 2px 2px rgba(0, 0, 0, 0.06)); }

/* Interactive Hover States */
.hover\:scale-105:hover { transform: scale(1.05); }
.hover\:scale-110:hover { transform: scale(1.10); }
.hover\:rotate-0:hover { transform: rotate(0deg); }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }
.hover\:-translate-y-2:hover { transform: translateY(-0.5rem); }
.hover\:translate-x-2:hover { transform: translateX(0.5rem); }
.hover\:shadow-md:hover { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); }
.hover\:shadow-lg:hover { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.hover\:shadow-xl:hover { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }
.hover\:shadow-2xl:hover { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); }
.hover\:opacity-80:hover { opacity: 0.8; }
.hover\:opacity-100:hover { opacity: 1; }
.hover\:text-accent:hover { color: #46BDD0; }
.hover\:text-white:hover { color: #ffffff; }
.hover\:text-primary:hover { color: #0A3D61; }
.hover\:bg-accent:hover { background-color: #46BDD0; }
.hover\:bg-outline-variant\/50:hover { background-color: rgba(194, 199, 207, 0.5); }
.active\:scale-95:active { transform: scale(0.95); }

/* Group Hover States */
.group:hover .group-hover\:opacity-100 { opacity: 1; }
.group:hover .group-hover\:visible { visibility: visible; }
.group:hover .group-hover\:scale-105 { transform: scale(1.05); }
.group:hover .group-hover\:scale-110 { transform: scale(1.10); }
.group:hover .group-hover\:scale-125 { transform: scale(1.25); }
.group:hover .group-hover\:-translate-y-2 { transform: translateY(-0.5rem); }
.group:hover .group-hover\:translate-x-2 { transform: translateX(0.5rem); }
.group:hover .group-hover\:grayscale-0 { filter: grayscale(0); }
.group:hover .group-hover\:bg-transparent { background-color: transparent; }

/* 11. RESPONSIVE UTILITIES (SM, MD, LG) */
@media (min-width: 640px) {
  .sm\:flex-row { flex-direction: row; }
  .sm\:w-auto { width: auto; }
  .sm\:py-0 { padding-top: 0; padding-bottom: 0; }
}

@media (min-width: 768px) {
  .md\:block { display: block; }
  .md\:flex { display: flex; }
  .md\:inline-flex { display: inline-flex; }
  .md\:hidden { display: none !important; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:flex-row { flex-direction: row; }
  .md\:items-center { align-items: center; }
  .md\:items-start { align-items: flex-start; }
  .md\:p-8 { padding: 2rem; }
  .md\:p-10 { padding: 2.5rem; }
  .md\:p-12 { padding: 3rem; }
  .md\:px-margin-desktop { padding-left: 80px; padding-right: 80px; }
  .md\:px-margin-desktop { padding-left: 80px; padding-right: 80px; }
  .md\:py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
  .md\:h-48 { height: 12rem; }
  .md\:text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
  .md\:text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
  .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
  .md\:bottom-6 { bottom: 1.5rem; }
  .md\:right-6 { right: 1.5rem; }
  .md\:w-auto { width: auto; }
}

@media (min-width: 1024px) {
  .lg\:flex { display: flex; }
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:gap-8 { gap: 2rem; }
  .lg\:gap-16 { gap: 4rem; }
}

/* 12. COMPONENT CLASSES & MICRO-INTERACTIONS */
.shimmer-btn {
  position: relative;
  overflow: hidden;
}
.shimmer-btn::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.25), transparent);
  transform: rotate(45deg);
  pointer-events: none;
  animation: shimmer 3s infinite;
}
@keyframes shimmer {
  0% { transform: translateX(-100%) rotate(45deg); }
  100% { transform: translateX(100%) rotate(45deg); }
}

.nav-link {
  position: relative;
  padding-bottom: 0.25rem;
}
.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--accent);
  transition: all 0.3s ease;
}
.nav-link:hover::after, .nav-link.active-nav::after {
  width: 100%;
}

.form-input {
  width: 100%;
  padding: 1rem 1.25rem;
  border-radius: 16px;
  border: 1px solid rgba(194, 199, 207, 0.5);
  background-color: #ffffff;
  outline: none;
  transition: all 0.3s ease;
  font-size: 1rem;
}
html.dark .form-input {
  border-color: rgba(255, 255, 255, 0.2);
  background-color: var(--dark-surface-variant);
  color: #ffffff;
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.page-content {
  display: none;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}
.page-active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.journal-view {
  display: none;
  opacity: 0;
  transition: opacity 0.4s ease-in-out;
  width: 100%;
}
.journal-view.active {
  display: block;
  opacity: 1;
}

.reveal-element {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}
.reveal-element.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Animations */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.animate-spin {
  animation: spin 1s linear infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* intl-tel-input Integration */
.iti { 
  width: 100%; 
  display: block; 
}
.iti input#bookPhone,
html.dark .iti input#bookPhone {
  background-color: transparent !important;
  border: none !important;
  box-shadow: none !important;
  outline: none !important;
  color: inherit !important;
  margin: 0 !important;
}
.iti__flag { background-image: url("https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/18.2.1/img/flags.png"); }
@media (min-resolution: 2x) {
  .iti__flag { background-image: url("https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/18.2.1/img/flags@2x.png"); }
}
html.dark .iti__country-list {
  background-color: #0A3D61;
  color: white;
  border-color: rgba(255,255,255,0.2);
}
html.dark .iti__country.iti__highlight {
  background-color: rgba(255,255,255,0.1);
}
html.dark .iti__country-list::-scrollbar-thumb {
  background-color: #46BDD0;
}