/* ============================================
   Eos Medical Group — Premium Dark Luxury
   ============================================ */

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

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

body {
    background-color: #0a0a0c;
    color: #e5e5e5;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #0a0a0c;
}
::-webkit-scrollbar-thumb {
    background: #2d2d37;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #d4a843;
}

/* Selection */
::selection {
    background: rgba(212, 168, 67, 0.3);
    color: #fff;
}

/* ============================================
   Navigation
   ============================================ */
#navbar {
    background: transparent;
    transition: background 0.5s ease, box-shadow 0.5s ease, backdrop-filter 0.5s ease;
}

#navbar.scrolled {
    background: rgba(10, 10, 12, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(212, 168, 67, 0.1);
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: linear-gradient(90deg, #d4a843, #f5d78e);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link:hover {
    color: #f5d78e !important;
}

/* Mobile menu */
#mobileMenu.open {
    opacity: 1 !important;
    pointer-events: all !important;
}

.mobile-link {
    font-size: 1.75rem;
}

.mobile-link:hover {
    color: #f5d78e !important;
}

/* Hamburger animation */
.menu-line {
    transition: all 0.3s ease;
}

#menuBtn.active .menu-line:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

#menuBtn.active .menu-line:nth-child(2) {
    opacity: 0;
}

#menuBtn.active .menu-line:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
    width: 1.25rem;
}

/* ============================================
   Hero Section
   ============================================ */
.hero-orb {
    animation: orbFloat 8s ease-in-out infinite;
}

.orb-1 {
    background: radial-gradient(circle, rgba(147, 24, 24, 0.6) 0%, transparent 70%);
    animation-delay: 0s;
}

.orb-2 {
    background: radial-gradient(circle, rgba(178, 25, 77, 0.5) 0%, transparent 70%);
    animation-delay: -3s;
}

.orb-3 {
    background: radial-gradient(circle, rgba(212, 168, 67, 0.3) 0%, transparent 70%);
    animation-delay: -5s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -20px) scale(1.05); }
    66% { transform: translate(-20px, 15px) scale(0.95); }
}

/* Hero animations */
.hero-eyebrow {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.hero-headline {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
}

.hero-subtitle {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

.hero-ctas {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
    opacity: 0;
}

.hero-trust {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1s;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll line animation */
.scroll-line {
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.4; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ============================================
   CTA Buttons
   ============================================ */
.cta-primary {
    position: relative;
    overflow: hidden;
}

.cta-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.5s ease;
}

.cta-primary:hover::before {
    left: 100%;
}

.cta-secondary {
    position: relative;
    overflow: hidden;
}

.cta-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    transition: left 0.5s ease;
}

.cta-secondary:hover::before {
    left: 100%;
}

/* ============================================
   Section Styles
   ============================================ */
.section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-title {
    position: relative;
}

.section-desc {
    position: relative;
}

/* ============================================
   Service Cards
   ============================================ */
.service-card {
    position: relative;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, #d4a843, #f5d78e, #d4a843);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(212, 168, 67, 0.05);
}

/* ============================================
   About Section
   ============================================ */
.about-image-wrapper {
    position: relative;
}

.about-image-container {
    position: relative;
    overflow: hidden;
}

.about-image-container::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(10, 10, 12, 0.4));
    pointer-events: none;
}

/* ============================================
   Patient Steps
   ============================================ */
.patient-step {
    position: relative;
}

.patient-step::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -0.5rem;
    width: 1rem;
    height: 1px;
    background: linear-gradient(90deg, rgba(212, 168, 67, 0.3), transparent);
    transform: translateY(-50%);
}

.patient-step:last-child::after {
    display: none;
}

@media (max-width: 767px) {
    .patient-step::after {
        display: none;
    }
}

/* ============================================
   Contact Section
   ============================================ */
.contact-info-item {
    transition: transform 0.3s ease;
}

.contact-info-item:hover {
    transform: translateX(4px);
}

/* Form focus states */
input:focus,
textarea:focus {
    border-color: rgba(212, 168, 67, 0.5) !important;
    box-shadow: 0 0 0 1px rgba(212, 168, 67, 0.1), 0 4px 20px rgba(0, 0, 0, 0.2);
}

input::placeholder,
textarea::placeholder {
    color: #4a4a5a;
}

/* ============================================
   Back to Top
   ============================================ */
.back-to-top {
    transition: all 0.4s ease;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: all;
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 168, 67, 0.2);
}

/* ============================================
   Scroll Animations
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 767px) {
    .hero-headline {
        font-size: 2.5rem;
    }
    
    .hero-headline .italic {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
    
    .about-image-wrapper {
        margin-bottom: 2rem;
    }
    
    .patient-step::after {
        display: none;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .hero-headline {
        font-size: 3.5rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
}

@media (min-width: 1024px) {
    .hero-headline {
        font-size: 4.5rem;
    }
}

/* ============================================
   Prefers Reduced Motion
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .reveal {
        opacity: 1;
        transform: none;
    }
}