/* Fast Horse Racing - Main Stylesheet
   Fingerprint: camelCase, em-based, semantic-variables, tight spacing, gradient sections */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; line-height: 1.5; }
body { -webkit-font-smoothing: antialiased; }
img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }

:root {
--colorPrimary: #d4af37; --colorPrimaryDark: #b8941f; --colorSecondary: #1a1a1a;
--colorBackground: #0a0a0a; --colorSurface: #1a1a1a; --colorText: #ffffff;
--colorTextMuted: #a0a0a0; --colorBorder: #2d2d2d; --colorError: #ef4444; --colorSuccess: #22c55e;
--spacingXs: 0.5em; --spacingS: 1em; --spacingM: 1.5em; --spacingL: 2em; --spacingXl: 3em;
--fontFamily: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
--fontSizeBase: 1em; --fontSizeSmall: 0.875em; --fontSizeLarge: 1.125em;
--fontSizeH1: 2.5em; --fontSizeH2: 2em; --fontSizeH3: 1.5em; --fontSizeH4: 1.25em;
--borderRadius: 0.5em; --transitionSpeed: 0.2s;
}

body { font-family: var(--fontFamily); color: var(--colorText); background: var(--colorBackground); line-height: 1.5; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; }
h1 { font-size: var(--fontSizeH1); } h2 { font-size: var(--fontSizeH2); }
h3 { font-size: var(--fontSizeH3); } h4 { font-size: var(--fontSizeH4); }
a { color: var(--colorPrimary); text-decoration: none; transition: color var(--transitionSpeed); }
a:hover { color: var(--colorPrimaryDark); }

.containerFluid { max-width: 75em; margin: 0 auto; padding: 0 var(--spacingS); }
.mainContent { min-height: 100vh; }

/* Navigation */
.navigationBar { background: rgba(26,26,26,0.95); position: sticky; top: 0; z-index: 1000; border-bottom: 1px solid var(--colorBorder); }
.navWrapper { display: flex; justify-content: space-between; align-items: center; padding: var(--spacingS) 0; }
.brandLogo { font-size: var(--fontSizeLarge); font-weight: 700; }
.logoText { background: linear-gradient(135deg, #d4af37 0%, #f0e6d2 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hamburgerToggle { display: none; flex-direction: column; gap: 0.25em; background: transparent; border: none; cursor: pointer; padding: var(--spacingXs); }
.hamburgerLine { width: 1.5em; height: 0.125em; background: var(--colorPrimary); transition: all var(--transitionSpeed); }
.navMenu { display: flex; align-items: center; gap: var(--spacingM); }
.navList { display: flex; list-style: none; gap: var(--spacingS); }
.navLink { color: var(--colorTextMuted); padding: var(--spacingXs) var(--spacingS); border-radius: var(--borderRadius); transition: all var(--transitionSpeed); }
.navLink:hover, .navLink.active { color: var(--colorPrimary); background: rgba(212,175,55,0.1); }
.navActions { display: flex; gap: var(--spacingXs); }

/* Buttons */
.btnPrimary, .btnSecondary, .btnOutline { display: inline-block; padding: 0.75em 1.5em; border-radius: var(--borderRadius); font-weight: 600; cursor: pointer; border: none; transition: all var(--transitionSpeed); }
.btnPrimary { background: linear-gradient(135deg, var(--colorPrimary) 0%, var(--colorPrimaryDark) 100%); color: var(--colorSecondary); }
.btnPrimary:hover { transform: translateY(-0.125em); box-shadow: 0 0.25em 1em rgba(212,175,55,0.3); }
.btnSecondary { background: var(--colorSurface); color: var(--colorText); border: 1px solid var(--colorBorder); }
.btnSecondary:hover { background: var(--colorSecondary); border-color: var(--colorPrimary); }
.btnOutline { background: transparent; color: var(--colorPrimary); border: 1px solid var(--colorPrimary); }
.btnOutline:hover { background: var(--colorPrimary); color: var(--colorSecondary); }
.btnLarge { padding: 1em 2em; font-size: var(--fontSizeLarge); }
.btnBlock { display: block; width: 100%; }

.premiumBadge { display: inline-block; padding: 0.25em 0.5em; background: linear-gradient(135deg, #d4af37 0%, #f0e6d2 100%); color: #1a1a1a; font-size: 0.75em; font-weight: 700; border-radius: 0.25em; }

/* Sections - Gradient Backgrounds */
.diagnosis { background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%); padding: var(--spacingXl) 0; }
.examination { background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%); padding: var(--spacingL) 0; }
.treatment, .symptoms, .specialists, .prescription, .recovery, .consultation, .referral, .appointment { padding: var(--spacingXl) 0; }
.treatment { background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%); }
.symptoms { background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%); }
.specialists { background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%); }
.prescription { background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%); }
.recovery { background: linear-gradient(135deg, #0a0a0a 0%, #2d2d2d 100%); }

/* Section Headers */
.sectionHeader { text-align: center; margin-bottom: var(--spacingL); }
.sectionTitle { font-size: var(--fontSizeH2); margin-bottom: var(--spacingXs); }
.sectionSubtitle { color: var(--colorTextMuted); font-size: var(--fontSizeLarge); }
.sectionCta { text-align: center; margin-top: var(--spacingM); }

/* Hero */
.heroModule { display: flex; align-items: center; gap: var(--spacingL); }
.heroContent { flex: 1; }
.heroTitle { margin-bottom: var(--spacingS); background: linear-gradient(135deg, #ffffff 0%, #d4af37 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.heroSubtitle { font-size: var(--fontSizeLarge); color: var(--colorTextMuted); margin-bottom: var(--spacingM); }
.heroActions { display: flex; gap: var(--spacingS); flex-wrap: wrap; }
.heroVisual { flex: 1; position: relative; }

/* Carousel */
.carouselContainer { position: relative; overflow: hidden; border-radius: var(--borderRadius); }
.carouselSlide { display: none; }
.carouselSlide.active { display: block; }
.carouselPrev, .carouselNext { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(212,175,55,0.8); border: none; color: #1a1a1a; font-size: 2em; padding: 0.25em 0.5em; cursor: pointer; border-radius: var(--borderRadius); }
.carouselPrev { left: var(--spacingS); }
.carouselNext { right: var(--spacingS); }

.placeholderImage { aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; border-radius: var(--borderRadius); }

/* Grids */
.metricsGrid, .categoriesGrid, .videosGrid, .instructorsGrid, .pricingGrid, .testimonialsGrid { display: grid; gap: var(--spacingM); }
.metricsGrid { grid-template-columns: repeat(auto-fit, minmax(15em, 1fr)); }
.categoriesGrid { grid-template-columns: repeat(auto-fit, minmax(18em, 1fr)); }
.videosGrid { grid-template-columns: repeat(auto-fill, minmax(20em, 1fr)); }
.instructorsGrid { grid-template-columns: repeat(auto-fit, minmax(15em, 1fr)); }
.pricingGrid { grid-template-columns: repeat(auto-fit, minmax(18em, 1fr)); }
.testimonialsGrid { grid-template-columns: repeat(auto-fit, minmax(20em, 1fr)); }

/* Cards */
.metricCard, .categoryCard, .videoCard, .instructorCard, .pricingCard, .testimonialCard { background: var(--colorSurface); border-radius: var(--borderRadius); border: 1px solid var(--colorBorder); transition: transform var(--transitionSpeed), border-color var(--transitionSpeed); }
.metricCard:hover, .categoryCard:hover, .videoCard:hover, .instructorCard:hover, .pricingCard:hover { transform: translateY(-0.25em); border-color: var(--colorPrimary); }

.metricCard { padding: var(--spacingM); text-align: center; }
.metricValue { font-size: var(--fontSizeH2); color: var(--colorPrimary); margin: var(--spacingXs) 0; }
.metricLabel { color: var(--colorTextMuted); }

.categoryCard { padding: var(--spacingM); text-align: center; }
.categoryTitle { margin-bottom: var(--spacingXs); }
.categoryDescription { color: var(--colorTextMuted); margin-bottom: var(--spacingS); }
.categoryLink { color: var(--colorPrimary); font-weight: 600; }

.videoCard { cursor: pointer; }
.videoThumbnail { position: relative; }
.videoDuration { position: absolute; bottom: var(--spacingXs); right: var(--spacingXs); background: rgba(0,0,0,0.8); padding: 0.25em 0.5em; border-radius: 0.25em; font-size: var(--fontSizeSmall); }
.videoInfo { padding: var(--spacingS); }
.videoTitle { margin-bottom: 0.25em; }
.videoMeta { color: var(--colorTextMuted); font-size: var(--fontSizeSmall); }

.instructorCard { padding: var(--spacingM); text-align: center; }
.instructorName { margin-bottom: 0.25em; }
.instructorRole { color: var(--colorPrimary); font-weight: 600; margin-bottom: 0.25em; }
.instructorStats { color: var(--colorTextMuted); font-size: var(--fontSizeSmall); }

.pricingCard { padding: var(--spacingM); position: relative; }
.pricingCard.featured { border-color: var(--colorPrimary); box-shadow: 0 0 2em rgba(212,175,55,0.2); }
.featuredBadge { position: absolute; top: -0.75em; left: 50%; transform: translateX(-50%); background: var(--colorPrimary); color: var(--colorSecondary); padding: 0.25em 1em; border-radius: var(--borderRadius); font-size: var(--fontSizeSmall); font-weight: 700; }
.pricingHeader { text-align: center; margin-bottom: var(--spacingM); padding-bottom: var(--spacingS); border-bottom: 1px solid var(--colorBorder); }
.pricingPrice { margin: var(--spacingS) 0; }
.priceAmount { font-size: var(--fontSizeH1); color: var(--colorPrimary); }
.pricePeriod { color: var(--colorTextMuted); }
.pricingFeatures { list-style: none; margin-bottom: var(--spacingM); }
.pricingFeatures li { padding: var(--spacingXs) 0; color: var(--colorTextMuted); }

.testimonialCard { padding: var(--spacingM); }
.testimonialRating { color: var(--colorPrimary); font-size: var(--fontSizeLarge); margin-bottom: var(--spacingXs); }
.testimonialText { margin-bottom: var(--spacingS); font-style: italic; }

/* FAQ */
.faqContainer { max-width: 50em; margin: 0 auto; }
.faqItem { background: var(--colorSurface); border: 1px solid var(--colorBorder); border-radius: var(--borderRadius); margin-bottom: var(--spacingS); overflow: hidden; }
.faqQuestion { width: 100%; display: flex; justify-content: space-between; padding: var(--spacingS); background: transparent; border: none; color: var(--colorText); font-weight: 600; cursor: pointer; }
.faqIcon { color: var(--colorPrimary); font-size: 1.5em; transition: transform var(--transitionSpeed); }
.faqQuestion[aria-expanded="true"] .faqIcon { transform: rotate(45deg); }
.faqAnswer { max-height: 0; overflow: hidden; transition: max-height 0.3s; }
.faqItem.active .faqAnswer { max-height: 20em; }
.faqAnswer p { padding: 0 var(--spacingS) var(--spacingS); color: var(--colorTextMuted); }

/* Forms */
.formGroup { margin-bottom: var(--spacingS); }
.formLabel { display: block; margin-bottom: 0.5em; font-weight: 600; }
.formInput, .formTextarea, .formSelect { width: 100%; padding: 0.75em; background: var(--colorSurface); border: 1px solid var(--colorBorder); border-radius: var(--borderRadius); color: var(--colorText); }
.formInput:focus, .formTextarea:focus { outline: none; border-color: var(--colorPrimary); }
.formTextarea { min-height: 8em; resize: vertical; }
.formHint { display: block; margin-top: 0.25em; color: var(--colorTextMuted); font-size: var(--fontSizeSmall); }
.formCheckbox { display: flex; align-items: center; gap: 0.5em; }

/* Auth */
.authSection { min-height: 100vh; display: flex; align-items: center; padding: var(--spacingL) 0; background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%); }
.authModule { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacingL); max-width: 60em; margin: 0 auto; }
.authCard { background: var(--colorSurface); padding: var(--spacingL); border-radius: var(--borderRadius); border: 1px solid var(--colorBorder); }
.authHeader { text-align: center; margin-bottom: var(--spacingM); }
.authTitle { font-size: var(--fontSizeH2); margin-bottom: var(--spacingXs); }
.authSubtitle { color: var(--colorTextMuted); }
.authVisual { display: flex; align-items: center; }
.benefitsList { list-style: none; }
.benefitsList li { display: flex; gap: var(--spacingS); margin-bottom: var(--spacingS); }

/* Dashboard */
.dashboardSection { padding: var(--spacingL) 0; }
.dashboardHeader { display: flex; justify-content: space-between; align-items: center; margin-bottom: var(--spacingM); }
.dashboardGrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(20em, 1fr)); gap: var(--spacingM); }
.dashboardCard { background: var(--colorSurface); border-radius: var(--borderRadius); border: 1px solid var(--colorBorder); }
.dashboardCard.fullWidth { grid-column: 1 / -1; }
.cardHeader { display: flex; justify-content: space-between; padding: var(--spacingS); border-bottom: 1px solid var(--colorBorder); }
.cardBody { padding: var(--spacingS); }
.actionsGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacingS); }
.actionButton { display: flex; flex-direction: column; align-items: center; gap: var(--spacingXs); padding: var(--spacingS); background: var(--colorBackground); border-radius: var(--borderRadius); transition: all var(--transitionSpeed); }
.actionButton:hover { background: rgba(212,175,55,0.1); transform: translateY(-0.125em); }

/* Footer */
.footerSection { background: var(--colorSecondary); padding: var(--spacingL) 0 var(--spacingS); border-top: 1px solid var(--colorBorder); }
.footerGrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15em, 1fr)); gap: var(--spacingL); margin-bottom: var(--spacingL); }
.footerHeading { color: var(--colorPrimary); margin-bottom: var(--spacingS); }
.footerText { color: var(--colorTextMuted); margin-bottom: var(--spacingS); }
.socialLinks { display: flex; gap: var(--spacingXs); }
.socialIcon { display: flex; width: 2.5em; height: 2.5em; background: var(--colorSurface); border-radius: var(--borderRadius); color: var(--colorPrimary); transition: all var(--transitionSpeed); }
.socialIcon:hover { background: var(--colorPrimary); color: var(--colorSecondary); transform: translateY(-0.125em); }
.footerLinks { list-style: none; }
.footerLinks li { margin-bottom: var(--spacingXs); }
.footerLinks a { color: var(--colorTextMuted); }
.footerLinks a:hover { color: var(--colorPrimary); }
.footerBottom { text-align: center; padding-top: var(--spacingM); border-top: 1px solid var(--colorBorder); color: var(--colorTextMuted); font-size: var(--fontSizeSmall); }

/* Alerts */
.alertError, .alertSuccess { padding: var(--spacingS); border-radius: var(--borderRadius); margin-bottom: var(--spacingM); }
.alertError { background: rgba(239,68,68,0.1); border: 1px solid var(--colorError); color: var(--colorError); }
.alertSuccess { background: rgba(34,197,94,0.1); border: 1px solid var(--colorSuccess); color: var(--colorSuccess); }

/* CTA */
.ctaModule { text-align: center; padding: var(--spacingL); background: var(--colorSurface); border-radius: var(--borderRadius); border: 1px solid var(--colorPrimary); }
.ctaTitle { font-size: var(--fontSizeH2); margin-bottom: var(--spacingXs); }
.ctaSubtitle { color: var(--colorTextMuted); font-size: var(--fontSizeLarge); margin-bottom: var(--spacingM); }

/* Mobile */
@media (max-width: 48em) {
.hamburgerToggle { display: flex; }
.navMenu { position: fixed; top: 4em; left: -100%; width: 80%; height: calc(100vh - 4em); background: var(--colorSurface); flex-direction: column; padding: var(--spacingM); transition: left 0.3s; border-right: 1px solid var(--colorBorder); }
.navMenu.active { left: 0; }
.navList { flex-direction: column; width: 100%; }
.heroModule, .authModule { grid-template-columns: 1fr; }
.authVisual { display: none; }
.dashboardGrid, .actionsGrid { grid-template-columns: 1fr; }
}