/* ============================================
   DR. ZAFER SABAWI, AP — CUSTOM STYLES
   Charcoal + Coral | Clean Minimalist
   ============================================ */

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

body {
    overflow-x: hidden;
}

::selection {
    background: rgba(255, 127, 80, 0.15);
    color: #252830;
}

/* --- Hero Gradient --- */
.hero-gradient {
    background: 
        radial-gradient(ellipse 80% 60% at 20% 40%, rgba(255, 127, 80, 0.18) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 30%, rgba(255, 143, 115, 0.12) 0%, transparent 55%),
        radial-gradient(ellipse 90% 70% at 50% 80%, rgba(45, 48, 57, 0.6) 0%, transparent 60%),
        linear-gradient(160deg, #131519 0%, #1e2028 40%, #252830 70%, #2d3039 100%);
}

/* --- CTA Gradient --- */
.cta-gradient {
    background: 
        radial-gradient(ellipse 70% 50% at 30% 50%, rgba(255, 127, 80, 0.12) 0%, transparent 60%),
        linear-gradient(160deg, #131519 0%, #1e2028 50%, #252830 100%);
}

/* --- Navbar --- */
#navbar {
    background: transparent;
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.nav-logo-text {
    transition: color 0.4s ease;
}

#navbar:not(.scrolled) .nav-logo-text {
    color: #ffffff;
}

#navbar.scrolled .nav-logo-text {
    color: #252830;
}

/* --- Scroll Reveal --- */
.scroll-reveal {
    opacity: 1;
    transform: translateY(0);
    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);
}

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

/* --- Service Cards --- */
.service-card {
    opacity: 1;
    transform: translateY(0);
}

.service-card-inner {
    transition: border-color 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                box-shadow 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.service-card:hover .service-card-inner {
    box-shadow: 0 20px 60px -20px rgba(255, 127, 80, 0.08);
}

.service-card-icon {
    transition: stroke 0.4s ease;
}

.service-card:hover .service-card-icon {
    stroke: #ffffff;
}

/* --- Mobile Menu --- */
.mobile-menu-link {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}

#mobile-menu.open .mobile-menu-link {
    opacity: 1;
    transform: translateY(0);
}

#mobile-menu.open .mobile-menu-link:nth-child(1) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-menu-link:nth-child(2) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-menu-link:nth-child(3) { transition-delay: 0.3s; }

.menu-line {
    transition: transform 0.3s ease, opacity 0.3s ease;
}

#mobile-menu-btn.active .menu-line:nth-child(1) {
    transform: translateY(3px) rotate(45deg);
}

#mobile-menu-btn.active .menu-line:nth-child(2) {
    transform: translateY(-3px) rotate(-45deg);
    opacity: 0;
}

/* --- Form --- */
input:focus, textarea:focus {
    border-bottom-color: #FF7F50 !important;
}

input::placeholder, textarea::placeholder {
    color: #c7c8cc;
}

/* --- Divider Lines --- */
.divider-line {
    height: 1px;
    background: linear-gradient(to right, transparent, #e3e4e6, transparent);
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .scroll-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
    .hero-subtitle,
    .hero-headline,
    .hero-description,
    .hero-ctas,
    .hero-scroll-indicator {
        opacity: 1;
        transform: none;
        transition: none;
    }
    * {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

/* --- Focus Visible --- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid #FF7F50;
    outline-offset: 4px;
    border-radius: 4px;
}