/* ========================================
   SPINE & PAIN CT - Main Stylesheet
   Version: 1.0
   ======================================== */

/* ----------------------------------------
   CSS Variables / Design Tokens
   ---------------------------------------- */
:root {
  /* Primary Colors */
  --color-primary: #0D7377;
  --color-primary-dark: #095456;
  --color-primary-light: #10908C;
  
  /* Secondary Colors */
  --color-secondary: #1A365D;
  --color-secondary-light: #2C5282;
  
  /* Accent Colors */
  --color-accent: #D97706;
  --color-accent-hover: #B45309;
  --color-accent-light: #FEF3C7;
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-off-white: #F8FAFB;
  --color-gray-50: #F7FAFC;
  --color-gray-100: #EDF2F7;
  --color-gray-200: #E2E8F0;
  --color-gray-300: #CBD5E0;
  --color-gray-400: #A0AEC0;
  --color-gray-500: #718096;
  --color-gray-600: #4A5568;
  --color-gray-700: #2D3748;
  --color-gray-800: #1A202C;
  --color-gray-900: #171923;
  
  /* Semantic Colors */
  --color-success: #38A169;
  --color-warning: #DD6B20;
  --color-error: #E53E3E;
  --color-info: #3182CE;
  
  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  
  /* Spacing */
  --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;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Layout */
  --container-max: 1200px;
  --header-height: 80px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* ----------------------------------------
   Typography
   ---------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gray-800);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

.text-accent {
  color: var(--color-primary);
}

/* ----------------------------------------
   Layout Components
   ---------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section {
  padding: var(--space-20) 0;
}

.section--gray {
  background-color: var(--color-gray-50);
}

.section--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.section--primary h2,
.section--primary h3 {
  color: var(--color-white);
}

/* ----------------------------------------
   Header & Navigation
   ---------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: box-shadow var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header__logo img {
  height: 50px;
  width: auto;
}

.header__logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
}

.header__logo-text span {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-gray-500);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-primary);
  background-color: var(--color-gray-50);
}

.nav__link--active {
  color: var(--color-primary);
}

.nav__dropdown {
  position: relative;
}

.nav__dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__dropdown-toggle::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  transition: transform var(--transition-fast);
}

.nav__dropdown:hover .nav__dropdown-toggle::after {
  transform: rotate(180deg);
}

.nav__dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  padding: var(--space-2);
}

.nav__dropdown:hover .nav__dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav__dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav__dropdown-item:hover {
  color: var(--color-primary);
  background-color: var(--color-gray-50);
}

.header__cta {
  margin-left: var(--space-4);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-gray-700);
  transition: all var(--transition-fast);
}

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--secondary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn--white {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.btn--white:hover {
  background-color: var(--color-gray-100);
  color: var(--color-primary);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__content {
  color: var(--color-white);
}

.hero__badge {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-6);
  backdrop-filter: blur(10px);
}

.hero__title {
  font-size: var(--text-6xl);
  color: var(--color-white);
  margin-bottom: var(--space-6);
  line-height: 1.1;
}

.hero__title span {
  color: var(--color-accent-light);
}

.hero__subtitle {
  font-size: var(--text-xl);
  opacity: 0.9;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero__buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero__features {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-10);
}

.hero__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  opacity: 0.9;
}

.hero__feature-icon {
  width: 20px;
  height: 20px;
  fill: var(--color-accent-light);
}

.hero__image {
  position: relative;
}

.hero__image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero__image-wrapper img {
  width: 100%;
  height: auto;
}

.hero__card {
  position: absolute;
  background: var(--color-white);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.hero__card--credentials {
  bottom: -20px;
  left: -30px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.hero__card-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__card-icon svg {
  width: 24px;
  height: 24px;
  fill: var(--color-white);
}

.hero__card-text {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.hero__card-text strong {
  display: block;
  font-size: var(--text-base);
  color: var(--color-gray-800);
}

/* ----------------------------------------
   Services/Conditions Grid
   ---------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
}

.service-card__icon svg {
  width: 28px;
  height: 28px;
  fill: var(--color-white);
}

.service-card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.service-card__text {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  margin-bottom: var(--space-4);
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
}

.service-card__link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  transition: transform var(--transition-fast);
}

.service-card:hover .service-card__link svg {
  transform: translateX(4px);
}

/* ----------------------------------------
   Section Headers
   ---------------------------------------- */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-12);
}

.section-header__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.section-header__title {
  margin-bottom: var(--space-4);
}

.section-header__text {
  font-size: var(--text-lg);
  color: var(--color-gray-600);
}

/* ----------------------------------------
   About/Doctor Section
   ---------------------------------------- */
.about-section {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-16);
  align-items: center;
}

.about-section__image {
  position: relative;
}

.about-section__image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.about-section__image::before {
  content: '';
  position: absolute;
  top: var(--space-6);
  left: var(--space-6);
  right: calc(var(--space-6) * -1);
  bottom: calc(var(--space-6) * -1);
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.1;
}

.about-section__content h2 {
  margin-bottom: var(--space-6);
}

.about-section__content p {
  color: var(--color-gray-600);
  margin-bottom: var(--space-4);
}

.credentials-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.credential-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.credential-item__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--color-accent-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.credential-item__icon svg {
  width: 20px;
  height: 20px;
  fill: var(--color-accent);
}

.credential-item__text strong {
  display: block;
  color: var(--color-gray-800);
  margin-bottom: var(--space-1);
}

.credential-item__text span {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
}

/* ----------------------------------------
   Treatments Section
   ---------------------------------------- */
.treatments-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.treatment-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
  transition: all var(--transition-normal);
}

.treatment-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.treatment-card__image {
  height: 180px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.treatment-card__image svg {
  width: 64px;
  height: 64px;
  fill: var(--color-white);
  opacity: 0.9;
}

.treatment-card__content {
  padding: var(--space-5);
}

.treatment-card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.treatment-card__text {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

/* ----------------------------------------
   CTA Section
   ---------------------------------------- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  text-align: center;
  padding: var(--space-20) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

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

.cta-section__title {
  font-size: var(--text-4xl);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta-section__text {
  font-size: var(--text-lg);
  opacity: 0.9;
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section__buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.cta-section__info {
  display: flex;
  justify-content: center;
  gap: var(--space-10);
  margin-top: var(--space-10);
}

.cta-section__info-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  opacity: 0.9;
}

.cta-section__info-item svg {
  width: 20px;
  height: 20px;
  fill: var(--color-accent-light);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
  background: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand {
  padding-right: var(--space-8);
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer__logo span {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--color-gray-500);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: var(--space-1);
}

.footer__brand p {
  font-size: var(--text-sm);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.footer__social {
  display: flex;
  gap: var(--space-3);
}

.footer__social a {
  width: 40px;
  height: 40px;
  background: var(--color-gray-800);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background: var(--color-primary);
}

.footer__social svg {
  width: 18px;
  height: 18px;
  fill: var(--color-gray-400);
}

.footer__social a:hover svg {
  fill: var(--color-white);
}

.footer__column h4 {
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  color: var(--color-gray-400);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-white);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}

.footer__contact-item svg {
  width: 18px;
  height: 18px;
  fill: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-gray-800);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-sm);
}

.footer__legal {
  display: flex;
  gap: var(--space-6);
}

.footer__legal a {
  color: var(--color-gray-500);
}

.footer__legal a:hover {
  color: var(--color-white);
}

/* ----------------------------------------
   Forms
   ---------------------------------------- */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-gray-800);
  background: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13, 115, 119, 0.1);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

/* ----------------------------------------
   Cards
   ---------------------------------------- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-gray-100);
}

.card__header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-gray-100);
}

.card__body {
  padding: var(--space-6);
}

.card__footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-gray-100);
  background: var(--color-gray-50);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ----------------------------------------
   Utilities
   ---------------------------------------- */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.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 Design
   ---------------------------------------- */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero__buttons {
    justify-content: center;
  }
  
  .hero__features {
    justify-content: center;
  }
  
  .hero__image {
    display: none;
  }
  
  .about-section {
    grid-template-columns: 1fr;
    gap: var(--space-10);
  }
  
  .treatments-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --text-6xl: 2.5rem;
    --text-5xl: 2rem;
    --text-4xl: 1.75rem;
    --text-3xl: 1.5rem;
  }
  
  .nav {
    display: none;
  }
  
  .header__cta {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .hero {
    min-height: 70vh;
  }
  
  .hero__features {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }
  
  .section {
    padding: var(--space-12) 0;
  }
  
  .treatments-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-section__info {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }
  
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer__bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* ----------------------------------------
   Animations
   ---------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }