/* ============================================
   Artistic Smile Dental Lab — Custom Styles
   ============================================ */

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

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

body {
    overflow-x: hidden;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f0f4f8;
}
::-webkit-scrollbar-thumb {
    background: #d49a20;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #b87b14;
}

/* Navigation */
.nav-logo-text {
    transition: color 0.3s ease;
}
.nav-logo-sub {
    transition: color 0.3s ease;
}

#navbar.scrolled .nav-logo-text {
    color: #102a43;
}

#navbar.transparent .nav-logo-text {
    color: #ffffff;
}
#navbar.transparent .nav-logo-sub {
    color: #d49a20;
}

.nav-link {
    position: relative;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #d49a20;
    transition: width 0.3s ease;
}
.nav-link:hover::after {
    width: 100%;
}

/* Mobile Menu */
#mobile-menu.open {
    transform: translateX(0);
}
#mobile-menu.closed {
    transform: translateX(100%);
}

.mobile-menu-link {
    position: relative;
}
.mobile-menu-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #d49a20;
    transition: width 0.3s ease;
}
.mobile-menu-link:hover::after {
    width: 80%;
}

/* Hamburger Animation */
#hamburger span {
    transition: all 0.3s ease;
}
#mobile-menu-btn.active #hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
#mobile-menu-btn.active #hamburger span:nth-child(2) {
    opacity: 0;
}
#mobile-menu-btn.active #hamburger span:nth-child(3) {
    width: 100%;
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Hero Animations */
.hero-eyebrow {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
}
.hero-headline {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
}
.hero-subheadline {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
}
.hero-ctas {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
}
.hero-trust {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1s;
}

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

/* Scroll Line Animation */
@keyframes scrollLine {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }
    50% {
        transform: scaleY(1);
        transform-origin: top;
    }
    51% {
        transform-origin: bottom;
    }
    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}
.animate-scroll-line {
    animation: scrollLine 1.5s ease-in-out infinite;
}

/* Section Styles */
.section-eyebrow {
    margin-bottom: 1rem;
}
.section-title {
    line-height: 1.15;
}
.section-subtitle {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Service Cards */
.service-card {
    position: relative;
    overflow: hidden;
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #d49a20, #f5e0a8);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}
.service-card:hover::before {
    transform: scaleX(1);
}

/* Process Steps */
.process-step {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.process-step.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Buttons */
.btn-primary {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}
.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}
.btn-primary:hover::before {
    left: 100%;
}

.btn-secondary {
    transition: all 0.3s ease;
}

/* Scroll Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.visible {
    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; }

/* Navbar scroll state */
#navbar {
    background: transparent;
    transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}
#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 20px rgba(16, 42, 67, 0.08);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-headline {
        font-size: 2.5rem;
    }
    .section-title {
        font-size: 2.25rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .hero-headline {
        font-size: 3.5rem;
    }
}

/* 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, .process-step {
        opacity: 1;
        transform: none;
    }
}