/* ========================================
   月恒净化 - Premium Styles
   ======================================== */

/* ========== Premium Glass Utilities ========== */

/* ========== Page Preloader ========== */
#preloader {
    background: linear-gradient(135deg, #1B3A5C, #0D5BA6 50%, #1B3A5C);
}
.preloader-logo {
    animation: preloader-fade-in 0.8s 0.2s ease forwards;
}
.preloader-tagline {
    animation: preloader-fade-in 0.6s 0.6s ease forwards;
}
.preloader-fill {
    animation: preloader-progress 1.8s 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    width: 0%;
}
@keyframes preloader-fade-in {
    to { opacity: 1; }
}
@keyframes preloader-progress {
    0% { width: 0%; }
    100% { width: 100%; }
}
#preloader.fade-out {
    opacity: 0;
    pointer-events: none;
}

/* ========== Cursor Glow ========== */
#cursor-glow {
    will-change: left, top;
    mix-blend-mode: normal;
}

.hover-lift {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(255,255,255,0.8) inset;
}

.glass-card {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    background:
        linear-gradient(140deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.18) 40%, rgba(255, 255, 255, 0.08) 100%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow:
        0 24px 55px -22px rgba(15, 23, 42, 0.28),
        0 12px 24px rgba(255, 255, 255, 0.16) inset,
        0 -10px 20px rgba(148, 163, 184, 0.08) inset;
    backdrop-filter: blur(26px) saturate(185%);
    -webkit-backdrop-filter: blur(26px) saturate(185%);
}

.glass-card::before {
    content: "";
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.14) 38%, rgba(255, 255, 255, 0.04));
    opacity: 0.95;
    pointer-events: none;
    z-index: 0;
}

.glass-card::after {
    content: "";
    position: absolute;
    top: -24%;
    left: -12%;
    width: 72%;
    height: 52%;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.28) 42%, transparent 72%);
    opacity: 0.75;
    transform: rotate(-10deg);
    filter: blur(12px);
    pointer-events: none;
    z-index: 0;
}

.glass-card > * {
    position: relative;
    z-index: 1;
}

.glass-card-dark {
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06) 45%, rgba(255, 255, 255, 0.02) 100%),
        linear-gradient(180deg, rgba(15, 23, 42, 0.42), rgba(15, 23, 42, 0.2));
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow:
        0 30px 60px -18px rgba(2, 6, 23, 0.65),
        0 16px 32px rgba(255, 255, 255, 0.08) inset,
        0 -12px 24px rgba(15, 23, 42, 0.2) inset;
}

.glass-card-dark::before {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.08) 35%, rgba(255, 255, 255, 0.02));
}

.glass-card-dark::after {
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.12) 40%, transparent 72%);
    opacity: 0.55;
}

/* ========== Glow Effects ========== */
.glow-accent:hover {
    box-shadow: 0 0 30px rgba(42, 92, 170, 0.4);
}

/* ========== Scrollbar ========== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ========== Scroll-Reveal Animations ========== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}
.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}
.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}
.reveal-scale {
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}
.reveal-zoom {
    opacity: 0;
    transform: scale(0.97) translateY(20px);
    transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1), transform 1s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-zoom.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
}

/* ========== Staggered children animation ========== */
.stagger-children > * {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.stagger-children.visible > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 0.15s; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 0.25s; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 0.35s; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 0.45s; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 0.55s; }
.stagger-children.visible > *:nth-child(7) { transition-delay: 0.65s; }
.stagger-children.visible > * {
    opacity: 0;
    transform: translateY(40px);
}
.stagger-children.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* ========== Scroll Progress Bar ========== */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, #2a5caa, #5b8fd9, #2a5caa);
    z-index: 9999;
    width: 0%;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(42, 92, 170, 0.6);
}

/* ========== Back to Top Button ========== */
#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: opacity 0.4s ease, transform 0.4s ease;
}
#back-to-top.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* ========== Navbar ========== */

/* Default: transparent over hero */
nav {
    background: transparent;
}
.nav-brand-text { color: #fff; }
.nav-sub-text { color: rgba(255,255,255,0.55); }
.nav-link { color: rgba(255,255,255,0.8); }
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.08); }
nav a.active-link { color: #fff !important; }
.nav-phone-icon { background: rgba(255,255,255,0.12); color: #C4975A; }
.nav-phone-text { color: rgba(255,255,255,0.9); }
.nav-phone-text:hover { color: #fff; }
.nav-separator { background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent); opacity: 1; }
.nav-logo-badge {
    background: linear-gradient(135deg, #1B3A5C, #0D5BA6);
    box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

/* Scrolled: white glass */
nav.scrolled {
    background: rgba(255, 255, 255, 0.92) !important;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    box-shadow: 0 1px 0 rgba(0,0,0,0.04), 0 4px 24px rgba(0,0,0,0.06) !important;
}
nav.scrolled .nav-inner {
    height: 64px !important;
}
nav.scrolled .nav-brand-text { color: #1B3A5C; }
nav.scrolled .nav-sub-text { color: #9ca3af; }
nav.scrolled .nav-link { color: #6b7280; }
nav.scrolled .nav-link:hover { color: #0D5BA6; background: rgba(13, 91, 166, 0.06); }
nav.scrolled a.active-link { color: #1B3A5C !important; }
nav.scrolled .nav-phone-icon { background: rgba(196, 151, 90, 0.1); color: #C4975A; }
nav.scrolled .nav-phone-text { color: #1B3A5C; }
nav.scrolled .nav-phone-text:hover { color: #0D5BA6; }
nav.scrolled .nav-separator { opacity: 0; }
nav.scrolled .nav-logo-badge {
    background: linear-gradient(135deg, #1B3A5C, #2a5caa);
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
}

nav a.active-link .nav-underline {
    width: 100%;
}

/* Nav copper underline */
.nav-underline {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #C4975A;
    border-radius: 999px;
    transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-link:hover .nav-underline {
    width: 60%;
}

/* ========== Hero ========== */
.parallax-bg {
    transition: transform 0.1s linear;
    will-change: transform;
}

/* ========== Hero Carousel ========== */
.hero-slide {
    opacity: 0;
    will-change: opacity, transform, clip-path;
}
.hero-slide.active {
    animation: slideEnter 1.8s cubic-bezier(0.22, 1, 0.36, 1) forwards,
               kenBurnsDrift 30s ease-in-out 2s infinite alternate;
}
.hero-slide.leaving {
    animation: slideLeave 1.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* Entry: diagonal wipe reveal + subtle zoom settle */
@keyframes slideEnter {
    0%   { opacity: 1; clip-path: inset(0 100% 0 0); transform: scale(1.06); }
    60%  { clip-path: inset(0 0 0 0); }
    100% { opacity: 1; clip-path: inset(0 0 0 0); transform: scale(1); }
}

/* Exit: fade + slight zoom out */
@keyframes slideLeave {
    0%   { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(0.97); }
}

/* Ken Burns: ultra-subtle continuous drift */
@keyframes kenBurnsDrift {
    0%   { transform: scale(1)    translate3d(0, 0, 0); }
    50%  { transform: scale(1.04) translate3d(-0.5%, -0.3%, 0); }
    100% { transform: scale(1.02) translate3d(0.3%, 0.2%, 0); }
}

#hero-carousel {
    clip-path: inset(0);
}

/* Cinematic vignette */
#hero-carousel::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: radial-gradient(ellipse at center, transparent 45%, rgba(0, 0, 0, 0.4) 100%);
    pointer-events: none;
}

/* Film grain overlay (subtle) */
#hero-carousel::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    opacity: 0.035;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    mix-blend-mode: overlay;
}

/* Hero content re-entrance animation */
.hero-content-transition .hero-enter {
    animation: heroContentSlideUp 0.9s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.hero-content-transition .hero-enter:nth-child(1) { animation-delay: 0.05s; }
.hero-content-transition .hero-enter:nth-child(2) { animation-delay: 0.12s; }
.hero-content-transition .hero-enter:nth-child(3) { animation-delay: 0.19s; }
.hero-content-transition .hero-enter:nth-child(4) { animation-delay: 0.26s; }
.hero-content-transition .hero-enter:nth-child(5) { animation-delay: 0.33s; }
.hero-content-transition .hero-enter:nth-child(6) { animation-delay: 0.40s; }
.hero-content-transition .hero-enter:nth-child(7) { animation-delay: 0.47s; }

@keyframes heroContentSlideUp {
    0%   { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

.carousel-dot {
    cursor: pointer;
}
.carousel-dot.active {
    background: rgba(42, 92, 170, 1) !important;
    width: 2.5rem;
    box-shadow: 0 0 10px rgba(42, 92, 170, 0.6);
}

/* ========== Glass Stats Bar ========== */
.glass-stats {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    background:
        linear-gradient(140deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.18) 40%, rgba(255, 255, 255, 0.08) 100%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow:
        0 24px 55px -22px rgba(15, 23, 42, 0.28),
        0 12px 24px rgba(255, 255, 255, 0.16) inset,
        0 -10px 20px rgba(148, 163, 184, 0.08) inset;
    backdrop-filter: blur(26px) saturate(185%);
    -webkit-backdrop-filter: blur(26px) saturate(185%);
}

.glass-stats::before {
    content: "";
    position: absolute;
    inset: 1px;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.14) 38%, rgba(255, 255, 255, 0.04));
    opacity: 0.95;
    pointer-events: none;
    z-index: 0;
}

.glass-stats::after {
    content: "";
    position: absolute;
    top: -24%;
    left: -12%;
    width: 72%;
    height: 52%;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.28) 42%, transparent 72%);
    opacity: 0.75;
    transform: rotate(-10deg);
    filter: blur(12px);
    pointer-events: none;
    z-index: 0;
}

.glass-stats > * {
    position: relative;
    z-index: 1;
}

/* ========== Premium Section Headings ========== */
.font-display {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

/* Hero title premium text shadow */
.hero-title-optical {
    text-shadow:
        0 2px 4px rgba(0, 0, 0, 0.15),
        0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Dark-bg section headings (white text) — metallic shine */
.premium-heading-light {
    position: relative;
    display: inline-block;
    text-shadow:
        0 1px 2px rgba(0, 0, 0, 0.3),
        0 4px 12px rgba(0, 0, 0, 0.15);
}

.premium-heading-light::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: -14px;
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, #C4975A, #e8c88a, #C4975A);
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(196, 151, 90, 0.4);
}

/* Light-bg section headings (navy text) — gradient + gold accent */
.premium-heading {
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, #0a1e3d 0%, #1B3A5C 50%, #0D5BA6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.premium-heading::after {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: -14px;
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, #C4975A, #e8c88a, #C4975A);
    border-radius: 2px;
    box-shadow: 0 0 8px rgba(196, 151, 90, 0.3);
}

/* ========== Animated Underline ========== */
.animated-underline {
    position: relative;
    display: inline-block;
}

/* ========== Premium Hero CTA Button ========== */
.cta-hero {
    cursor: pointer;
    transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.5s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.cta-hero:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 16px 48px rgba(42, 92, 170, 0.4),
                0 0 80px rgba(126, 200, 240, 0.15);
}

/* Glassmorphism background */
.cta-hero-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
        rgba(255, 255, 255, 0.12) 0%,
        rgba(255, 255, 255, 0.05) 50%,
        rgba(42, 92, 170, 0.15) 100%);
    backdrop-filter: blur(12px) saturate(1.4);
    -webkit-backdrop-filter: blur(12px) saturate(1.4);
    border-radius: inherit;
    z-index: 0;
}

/* Animated gradient border */
.cta-hero-border {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(
        var(--border-angle, 0deg),
        rgba(255, 255, 255, 0.5),
        rgba(126, 200, 240, 0.3),
        rgba(42, 92, 170, 0.6),
        rgba(196, 151, 90, 0.4),
        rgba(255, 255, 255, 0.5)
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box,
                  linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box,
          linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 1;
    animation: borderRotate 4s linear infinite;
}
@keyframes borderRotate {
    0%   { --border-angle: 0deg; }
    100% { --border-angle: 360deg; }
}
@property --border-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

/* Shimmer sweep (idle loop) */
.cta-hero-shine {
    position: absolute;
    inset: 0;
    border-radius: inherit;
    overflow: hidden;
    z-index: 2;
    pointer-events: none;
}
.cta-hero-shine::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.08),
        rgba(255, 255, 255, 0.15),
        rgba(255, 255, 255, 0.08),
        transparent
    );
    animation: shimmerSweep 3.5s ease-in-out infinite;
    animation-delay: 1s;
}
@keyframes shimmerSweep {
    0%   { left: -100%; }
    40%  { left: 150%; }
    100% { left: 150%; }
}

/* Hover glow ring */
.cta-hero::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: inherit;
    background: linear-gradient(135deg,
        rgba(126, 200, 240, 0.2),
        rgba(42, 92, 170, 0.15),
        rgba(196, 151, 90, 0.1));
    filter: blur(16px);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
    pointer-events: none;
}
.cta-hero:hover::after {
    opacity: 1;
}

.animated-underline::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #2a5caa, #5b8fd9);
    border-radius: 999px;
    transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1), left 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.animated-underline.visible::after {
    width: 60%;
    left: 20%;
}

/* ========== Mobile Menu Overlay ========== */
#mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}
#mobile-menu.open {
    opacity: 1;
    pointer-events: auto;
}
#mobile-menu a {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.5rem;
    color: white;
    letter-spacing: 0.15em;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease, color 0.3s ease;
}
#mobile-menu.open a {
    opacity: 1;
    transform: translateY(0);
}
#mobile-menu.open a:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open a:nth-child(2) { transition-delay: 0.10s; }
#mobile-menu.open a:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open a:nth-child(4) { transition-delay: 0.20s; }
#mobile-menu.open a:nth-child(5) { transition-delay: 0.25s; }
#mobile-menu.open a:nth-child(6) { transition-delay: 0.30s; }
#mobile-menu.open a:nth-child(7) { transition-delay: 0.35s; }
#mobile-menu a:hover {
    color: #2a5caa;
}

/* ========== Floating Particles ========== */
.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    animation: float-particle linear infinite;
    opacity: 0;
    box-shadow: 0 0 6px 2px rgba(126, 200, 240, 0.4);
}
@keyframes float-particle {
    0% { opacity: 0; transform: translateY(0) scale(0); }
    10% { opacity: 0.7; }
    50% { opacity: 0.5; }
    90% { opacity: 0.3; }
    100% { opacity: 0; transform: translateY(-120vh) scale(1.2); }
}

/* ========== Hero Text Entrance ========== */
.hero-enter {
    opacity: 0;
    transform: translateY(40px);
    animation: hero-fade-in 1s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.hero-enter:nth-child(1) { animation-delay: 0.1s; }
.hero-enter:nth-child(2) { animation-delay: 0.25s; }
.hero-enter:nth-child(3) { animation-delay: 0.4s; }
.hero-enter:nth-child(4) { animation-delay: 0.55s; }
.hero-enter:nth-child(5) { animation-delay: 0.7s; }
.hero-enter:nth-child(6) { animation-delay: 0.85s; }
@keyframes hero-fade-in {
    to { opacity: 1; transform: translateY(0); }
}

/* ========== Pulse Ring ========== */
@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(42, 92, 170, 0.4); }
    70% { box-shadow: 0 0 0 15px rgba(42, 92, 170, 0); }
    100% { box-shadow: 0 0 0 0 rgba(42, 92, 170, 0); }
}
.pulse-ring {
    animation: pulse-ring 2.5s infinite;
}

/* ========== Section Wave Divider ========== */
.wave-divider {
    position: relative;
    overflow: hidden;
}

/* ========== Text Shimmer ========== */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
.text-shimmer {
    background: linear-gradient(90deg, #2a5caa 0%, #5b8fd9 25%, #7ab3ff 50%, #5b8fd9 75%, #2a5caa 100%);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 4s linear infinite;
}

/* ========== Premium Card Hover ========== */
.premium-glow {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.premium-glow:hover {
    box-shadow: 0 0 0 1px rgba(42, 92, 170, 0.1), 0 20px 40px -12px rgba(42, 92, 170, 0.15);
}

/* ========== Level 1 Card (Service / Case) ========== */
.card-level-1 {
    position: relative;
    background: #fff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-level-1::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg,
        transparent 0deg,
        rgba(42, 92, 170, 0.06) 60deg,
        rgba(196, 151, 90, 0.08) 120deg,
        transparent 180deg,
        rgba(42, 92, 170, 0.04) 240deg,
        transparent 360deg
    );
    opacity: 0;
    transition: opacity 0.6s ease;
    animation: card-shimmer-rotate 4s linear infinite paused;
    z-index: 0;
}
.card-level-1:hover::before {
    opacity: 1;
    animation-play-state: running;
}
.card-level-1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #0D5BA6, #C4975A);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 2;
}
.card-level-1 > * {
    position: relative;
    z-index: 1;
}
.card-level-1:hover {
    transform: translateY(-8px);
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.14),
        0 0 0 1px rgba(42, 92, 170, 0.06);
}
.card-level-1:hover::after {
    transform: scaleX(1);
}

@keyframes card-shimmer-rotate {
    to { transform: rotate(360deg); }
}

/* ========== Level 2 Card (Product / News) — Liquid Glass Edition ========== */
.card-level-2 {
    position: relative;
    overflow: hidden;
    border-radius: 28px;
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.45),
        rgba(255, 255, 255, 0.20) 50%,
        rgba(255, 255, 255, 0.12)
    );
    border: 1.2px solid rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    box-shadow:
        0 8px 32px -4px rgba(15, 23, 42, 0.10),
        inset 0 1.5px 0 rgba(255, 255, 255, 0.65),
        inset 0 -1px 0 rgba(0, 0, 0, 0.04);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.4s ease,
                border-color 0.3s ease;
}

/* Edge highlight — liquid light refraction (replaces old ::before) */
.card-level-2::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1.5px;
    background: linear-gradient(
        160deg,
        rgba(255, 255, 255, 0.8) 0%,
        rgba(255, 255, 255, 0.15) 30%,
        transparent 50%,
        rgba(255, 255, 255, 0.08) 80%,
        rgba(255, 255, 255, 0.4) 100%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 2;
}

/* Chromatic dispersion — edge color fringing (new ::after) */
.card-level-2::after {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(
        135deg,
        rgba(120, 180, 255, 0.35) 0%,
        rgba(180, 130, 255, 0.20) 25%,
        transparent 40%,
        transparent 60%,
        rgba(255, 180, 120, 0.20) 75%,
        rgba(255, 120, 120, 0.25) 100%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 1;
    opacity: 0.7;
    transition: opacity 0.4s ease;
}

.card-level-2 > * {
    position: relative;
    z-index: 3;
}

.card-level-2:hover {
    transform: translateY(-4px) scale(1.01);
    border-color: rgba(255, 255, 255, 0.7);
    box-shadow:
        0 16px 48px -8px rgba(15, 23, 42, 0.16),
        inset 0 1.5px 0 rgba(255, 255, 255, 0.75),
        inset 0 -1px 0 rgba(0, 0, 0, 0.05);
}

.card-level-2:hover::after {
    opacity: 1;
}

/* Stats card gold bottom accent */
.reveal-scale {
    position: relative;
    border-top: 2px solid #C4975A !important;
}
.reveal-scale::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg,
        transparent,
        rgba(196, 151, 90, 0.2),
        #C4975A,
        rgba(196, 151, 90, 0.2),
        transparent
    );
    border-radius: 2px;
}

/* ========== Icon Premium ========== */
.icon-premium {
    background: linear-gradient(135deg, #EBF2FF, #FFFFFF, #E3EDFF);
    border: 1px solid rgba(42, 92, 170, 0.12);
    box-shadow: 0 4px 15px rgba(42, 92, 170, 0.08), 0 1px 3px rgba(0,0,0,0.04);
}

/* ========== Body Noise Texture ========== */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    opacity: 0.018;
    pointer-events: none;
    z-index: 9998;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4'%3E%3Crect width='1' height='1' fill='%23000'/%3E%3C/svg%3E");
    background-size: 4px 4px;
}

/* ========== Interactive Elements ========== */
a, button, summary, .hover-lift { cursor: pointer; }

/* ========== Accessibility ========== */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
    outline: 2px solid #2a5caa;
    outline-offset: 3px;
    border-radius: 4px;
}

/* ========== Input Glow ========== */
.input-glow:focus {
    box-shadow: 0 0 0 3px rgba(42, 92, 170, 0.15), 0 0 20px rgba(42, 92, 170, 0.08);
}

/* ========== CTA Premium Button ========== */
.cta-premium {
    position: relative;
    overflow: hidden;
}
.cta-premium::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 0.7s ease;
}
.cta-premium:hover::before {
    left: 100%;
}

/* ========== Dot Pattern ========== */
.dot-pattern {
    background-image: radial-gradient(circle, rgba(42, 92, 170, 0.06) 1px, transparent 1px);
    background-size: 24px 24px;
}

/* ========== Footer Link ========== */
.footer-link {
    position: relative;
}
.footer-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: #2a5caa;
    transition: width 0.3s ease;
}
.footer-link:hover::after {
    width: 100%;
}

/* ========== Smooth Image Loading ========== */
img {
    opacity: 1;
    transition: opacity 0.4s ease;
}

/* ========== Section Fade ========== */
.section-fade-top::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to bottom, rgba(248,250,252,1), transparent);
    pointer-events: none;
    z-index: 1;
}

/* ========== Liquid Glass TAB Bar ========== */
.liquid-tab-bar {
    display: inline-flex;
    gap: 4px;
    padding: 5px;
    border-radius: 50px;
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.35),
        rgba(255, 255, 255, 0.15)
    );
    border: 1px solid rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    box-shadow:
        0 4px 20px -4px rgba(15, 23, 42, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.5),
        inset 0 -0.5px 0 rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

/* Chromatic edge for tab bar */
.liquid-tab-bar::before {
    content: "";
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1.5px;
    background: linear-gradient(
        90deg,
        rgba(120, 180, 255, 0.3) 0%,
        rgba(180, 130, 255, 0.15) 30%,
        transparent 50%,
        rgba(255, 180, 120, 0.15) 70%,
        rgba(255, 120, 120, 0.2) 100%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: 0;
    opacity: 0.6;
}

.liquid-tab-bar > * {
    position: relative;
    z-index: 1;
}

.liquid-tab {
    padding: 10px 28px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: rgba(15, 23, 42, 0.55);
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: none;
    background: transparent;
    white-space: nowrap;
}

.liquid-tab:hover {
    color: rgba(15, 23, 42, 0.8);
    background: rgba(255, 255, 255, 0.25);
}

.liquid-tab.active {
    color: #0F172A;
    background: linear-gradient(
        145deg,
        rgba(255, 255, 255, 0.72),
        rgba(255, 255, 255, 0.45)
    );
    box-shadow:
        0 2px 12px -2px rgba(15, 23, 42, 0.10),
        inset 0 1px 0 rgba(255, 255, 255, 0.7),
        inset 0 -0.5px 0 rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

/* ========== Premium Enhancements ========== */

/* Mouse-following glow spot on interactive cards */
.card-glow-spot {
    position: absolute;
    pointer-events: none;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(
        circle,
        rgba(42, 92, 170, 0.12) 0%,
        rgba(42, 92, 170, 0.04) 40%,
        transparent 70%
    );
    transform: translate(-50%, -50%);
    z-index: 0;
    opacity: 0;
    transition: opacity 0.4s ease;
    filter: blur(8px);
}

/* Floating ambient orbs — section background decoration */
@keyframes float-orb {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -20px) scale(1.05); }
    50% { transform: translate(-10px, 15px) scale(0.97); }
    75% { transform: translate(20px, 10px) scale(1.02); }
}

.ambient-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(80px);
    opacity: 0.35;
    animation: float-orb 12s ease-in-out infinite;
}

/* Shine sweep on card hover */
@keyframes shine-sweep {
    0% { left: -75%; }
    100% { left: 125%; }
}

.card-level-1 .shine-sweep,
.card-level-2 .shine-sweep {
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.15),
        transparent
    );
    transform: skewX(-20deg);
    pointer-events: none;
    z-index: 4;
}

.card-level-1:hover .shine-sweep,
.card-level-2:hover .shine-sweep {
    animation: shine-sweep 0.8s ease-out;
}

/* Premium stat counter gradient */
[data-counter] {
    background: linear-gradient(135deg, #C4975A 0%, #D4A96A 50%, #C4975A 100%);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 3s ease-in-out infinite;
}

/* Enhanced CTA button glow */
.cta-premium {
    position: relative;
    overflow: hidden;
}
.cta-premium::after {
    content: '';
    position: absolute;
    inset: -2px;
    background: linear-gradient(45deg,
        rgba(42, 92, 170, 0) 0%,
        rgba(42, 92, 170, 0.15) 50%,
        rgba(42, 92, 170, 0) 100%
    );
    border-radius: inherit;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}
.cta-premium:hover::after {
    opacity: 1;
}

/* 3D Tilt card effect */
.card-tilt {
    transform-style: preserve-3d;
    perspective: 1000px;
}

/* Smooth zoom on card images */
.card-level-1 img,
.card-level-2 img {
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.card-level-1:hover img,
.card-level-2:hover img {
    transform: scale(1.08);
}

/* Enhanced news card hover */
.news-card {
    border-left: 3px solid transparent;
    transition: border-color 0.3s ease, transform 0.5s ease, box-shadow 0.5s ease, background 0.4s ease;
}
.news-card:hover {
    border-left-color: #2a5caa;
    background: rgba(255, 255, 255, 1) !important;
    box-shadow: 0 16px 40px -8px rgba(13, 91, 166, 0.12) !important;
}

/* Carousel progress bar animation */
.carousel-progress-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #7ec8f0, #2a5caa, #7ec8f0);
    box-shadow: 0 0 10px rgba(126, 200, 240, 0.4), 0 0 20px rgba(42, 92, 170, 0.2);
    z-index: 25;
    width: 0%;
}
.carousel-progress-bar.running {
    animation: carousel-progress 4s linear infinite;
}
@keyframes carousel-progress {
    0% { width: 0%; }
    100% { width: 100%; }
}

/* Section title decoration animation */
@keyframes section-line-pulse {
    0%, 100% { opacity: 0.6; width: 2rem; }
    50% { opacity: 1; width: 3rem; }
}

/* Floating badge enhanced glow */
.pulse-ring {
    animation: pulse-ring 2.5s infinite;
}
.pulse-ring::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: inherit;
    background: linear-gradient(135deg,
        rgba(42, 92, 170, 0.15),
        rgba(126, 200, 240, 0.1),
        rgba(42, 92, 170, 0.15)
    );
    z-index: -1;
    filter: blur(12px);
    opacity: 0.6;
}

/* Smooth scroll indicator */
@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 0.6; }
    50% { transform: translateY(8px); opacity: 1; }
}

/* Premium icon hover animation */
.card-level-1 i,
.card-level-2 i {
    transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.3s ease;
}
.card-level-1:hover i,
.card-level-2:hover i {
    transform: scale(1.1) translateY(-2px);
}

/* ========== Premium Enhancements Phase 2 ========== */

/* Nav link hover effect */
.nav-link {
    transition: color 0.3s ease, background 0.3s ease;
}
.nav-link:hover {
    text-shadow: 0 0 20px rgba(42, 92, 170, 0.15);
}

/* Hero title subtle shimmer - avoid bg-clip-text elements */

/* Hero CTA magnetic button base */
.btn-optical {
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
}
.btn-optical::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: inherit;
    background: linear-gradient(135deg,
        rgba(255, 255, 255, 0.2),
        rgba(255, 255, 255, 0.05)
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    filter: blur(8px);
}
.btn-optical:hover::before {
    opacity: 1;
}

/* Stats section enhanced glass */
.reveal-scale {
    position: relative;
}

/* About section image card hover */
.glass-card {
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
                box-shadow 0.5s ease;
}
.glass-card:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow:
        0 30px 60px -15px rgba(15, 23, 42, 0.2),
        0 12px 24px rgba(255, 255, 255, 0.2) inset;
}

/* About value item micro-animation */
#about-values > div {
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
#about-values > div:hover {
    transform: translateX(-4px) scale(1.02);
    box-shadow: 0 12px 32px rgba(13, 91, 166, 0.12) !important;
}
#about-values > div:hover i {
    transform: scale(1.15);
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Service section background animated gradient */
#services {
    background: linear-gradient(135deg, #0b4d8e, #0d5ba6, #0b4d8e);
    background-size: 400% 400%;
    animation: gradient-shift 12s ease infinite;
}
@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Footer contact info hover */
footer .flex.items-center {
    transition: transform 0.3s ease;
}
footer .flex.items-center:hover {
    transform: translateX(4px);
}

/* Footer QR code hover glow */
footer .w-28.h-28 {
    transition: all 0.4s ease;
}
footer .w-28.h-28:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

/* Section heading premium underline */
.font-serif.font-bold {
    transition: letter-spacing 0.6s ease;
}

/* Parallax-like depth for section backgrounds */
#about, #products, #cases {
    background-attachment: fixed;
}

/* Enhanced dot pattern with gradient overlay */
.dot-pattern::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 20%,
        rgba(42, 92, 170, 0.03),
        transparent 60%
    );
    pointer-events: none;
    z-index: 0;
}

/* Hover-triggered border gradient for about values */
#about-values > div {
    position: relative;
    overflow: hidden;
}
#about-values > div::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #2a5caa, #C4975A);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    border-radius: 0 4px 4px 0;
}
#about-values > div:hover::before {
    transform: scaleY(1);
}

/* Insights section enhanced card transition */
#insights .news-card {
    position: relative;
    overflow: hidden;
}
#insights .news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(42, 92, 170, 0.03),
        transparent
    );
    transition: left 0.6s ease;
    z-index: 0;
}
#insights .news-card:hover::before {
    left: 100%;
}
#insights .news-card > * {
    position: relative;
    z-index: 1;
}

/* Smooth selection color */
::selection {
    background: rgba(42, 92, 170, 0.15);
    color: inherit;
}

/* Staggered grid reveal */
#services-grid > *,
#cases-grid > *,
#products-grid > *,
#insights-grid > * {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
#services-grid > *.revealed,
#cases-grid > *.revealed,
#products-grid > *.revealed,
#insights-grid > *.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Smooth scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f8fafc; }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #0d5ba6, #C4975A);
    border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: #0b4d8e; }

/* ========== Section Title Premium Entrance ========== */
.reveal h2 {
    display: inline-block;
    background: linear-gradient(135deg, #1B3A5C 0%, #0D5BA6 60%, #1B3A5C 100%);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    -webkit-text-fill-color: transparent;
}
#services .reveal h2,
#insights .reveal h2 {
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.85) 60%, #fff 100%);
    background-size: 200% auto;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.reveal.visible h2 {
    animation: title-shimmer 3s ease-in-out 0.5s 1;
}
@keyframes title-shimmer {
    0% { background-position: 200% center; }
    100% { background-position: -200% center; }
}

/* Section subtitle copper text glow */
.reveal p.text-brand-copper {
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.6s ease 0.1s;
}
.reveal.visible p.text-brand-copper {
    opacity: 1;
    transform: translateY(0);
}

/* Section divider lines animation */
.reveal .flex.items-center.justify-center {
    opacity: 0;
    transform: scaleX(0.3);
    transition: all 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.3s;
}
.reveal.visible .flex.items-center.justify-center {
    opacity: 1;
    transform: scaleX(1);
}

/* ========== Section Gradient Transitions ========== */
#about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, rgba(232, 239, 247, 0.6), transparent);
    pointer-events: none;
    z-index: 0;
}

/* ========== Mobile Optimizations ========== */

/* Disable cursor glow on touch devices */
@media (hover: none) and (pointer: coarse) {
    #cursor-glow {
        display: none !important;
    }
}

/* Fix background-attachment: fixed on iOS (crashes/broken) */
@supports (-webkit-touch-callout: none) {
    #about, #products, #cases {
        background-attachment: scroll !important;
    }
}

@media (max-width: 767px) {
    /* Disable parallax on mobile — not supported on iOS */
    #about, #products, #cases {
        background-attachment: scroll !important;
    }

    /* Simplify hero carousel animations for mobile performance */
    .hero-slide {
        will-change: opacity;
    }

    .hero-slide.active {
        animation: slideEnterMobile 1.2s ease forwards,
                   kenBurnsDriftMobile 20s ease-in-out 1.5s infinite alternate;
    }

    .hero-slide.leaving {
        animation: slideLeaveMobile 1s ease forwards;
    }

    /* CTA button — fallback for @property not supported */
    .cta-hero-border {
        background: linear-gradient(135deg,
            rgba(255, 255, 255, 0.4),
            rgba(126, 200, 240, 0.3),
            rgba(42, 92, 170, 0.5)) !important;
        animation: none !important;
    }

    /* Reduce backdrop-filter intensity for performance */
    .cta-hero-bg {
        backdrop-filter: blur(8px) !important;
        -webkit-backdrop-filter: blur(8px) !important;
    }

    /* Glass stats — reduce blur on mobile */
    .glass-stats {
        backdrop-filter: blur(16px) saturate(150%) !important;
        -webkit-backdrop-filter: blur(16px) saturate(150%) !important;
    }

    /* Premium headings — ensure gradient text renders */
    .premium-heading,
    .premium-heading-light {
        word-break: keep-all;
    }

    /* Nav scroll state glass blur — lighter on mobile */
    nav.scrolled {
        backdrop-filter: blur(12px) !important;
        -webkit-backdrop-filter: blur(12px) !important;
    }

    /* Mobile menu — use dvh for iOS address bar */
    #mobile-menu {
        height: 100dvh;
        height: -webkit-fill-available;
    }

    /* Increase tap target sizes */
    #back-to-top {
        min-width: 44px;
        min-height: 44px;
    }

    /* Hero content spacing on small screens */
    .hero-content {
        padding-top: 6rem;
    }

    /* Simpler film grain on mobile — reduce overhead */
    #hero-carousel::after {
        opacity: 0.015 !important;
    }
}

/* Simplified mobile-only keyframes */
@keyframes slideEnterMobile {
    0%   { opacity: 0; transform: scale(1.03); }
    100% { opacity: 1; transform: scale(1); }
}
@keyframes slideLeaveMobile {
    0%   { opacity: 1; transform: scale(1); }
    100% { opacity: 0; transform: scale(0.98); }
}
@keyframes kenBurnsDriftMobile {
    0%   { transform: scale(1)    translate3d(0, 0, 0); }
    100% { transform: scale(1.02) translate3d(-0.3%, -0.2%, 0); }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .hero-slide.active {
        animation: none !important;
        opacity: 1;
    }
    .hero-slide.leaving {
        animation: none !important;
        opacity: 0;
    }
}

#cases::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(180deg, rgba(13, 91, 166, 0.05), transparent);
    pointer-events: none;
    z-index: 0;
}

#products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(180deg, rgba(13, 91, 166, 0.04), transparent);
    pointer-events: none;
    z-index: 0;
}

/* ========== Footer Typography System ========== */
/* Level 1: Section headings — unified */
footer h3, footer h4 {
    font-size: 1.25rem !important;     /* text-xl */
    line-height: 1.75rem;
}
@media (min-width: 768px) {
    footer h3, footer h4 {
        font-size: 1.5rem !important;  /* md:text-2xl */
        line-height: 2rem;
    }
}
/* Level 2: Content text — unified */
footer .space-y-6 p:not(.text-sm):not(.text-white\/50),
footer .space-y-6 p.font-semibold {
    font-size: 1.0625rem !important;   /* 17px */
    line-height: 1.625rem;
}
footer ul a {
    font-size: 1rem !important;        /* 16px */
}

/* ========== Footer Link Hover Arrow ========== */
footer ul a {
    position: relative;
    padding-left: 0;
    transition: padding-left 0.3s ease, color 0.3s ease;
}
footer ul a:hover {
    padding-left: 8px;
}
footer ul a::before {
    content: '›';
    position: absolute;
    left: -4px;
    opacity: 0;
    transition: opacity 0.3s ease, left 0.3s ease;
    color: #C4975A;
}
footer ul a:hover::before {
    opacity: 1;
    left: -2px;
}

/* ========== Hero CTA Pulse Shadow ========== */
.cta-premium {
    animation: cta-pulse-shadow 3s ease-in-out infinite;
}
@keyframes cta-pulse-shadow {
    0%, 100% { box-shadow: 0 12px 28px rgba(0,0,0,0.2); }
    50% { box-shadow: 0 16px 40px rgba(0,0,0,0.3), 0 0 60px rgba(42,92,170,0.15); }
}

/* ========== Floating Badge Gradient Border ========== */
.pulse-ring {
    border: 1px solid transparent;
    background-clip: padding-box;
}
.pulse-ring::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(135deg, rgba(196,151,90,0.4), rgba(42,92,170,0.3), rgba(196,151,90,0.4));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    z-index: -1;
    animation: badge-border-rotate 4s linear infinite;
}
@keyframes badge-border-rotate {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* ========== Enhanced Carousel Dots ========== */
.carousel-dot {
    position: relative;
    overflow: hidden;
}
.carousel-dot::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}
.carousel-dot.active::after {
    animation: dot-shine 2s ease-in-out infinite;
}
@keyframes dot-shine {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
    100% { transform: translateX(100%); }
}