* { margin: 0; padding: 0; box-sizing: border-box; }

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

::selection { background-color: rgba(0, 180, 216, 0.3); color: #0f172a; }
.dark ::selection { color: #fff; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
.dark ::-webkit-scrollbar-track { background: #0a0e27; }
.dark ::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
.dark ::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

.bg-grid-pattern {
    background-image: linear-gradient(rgba(0,0,0,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0,0,0,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}
.dark .bg-grid-pattern {
    background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
}

#navbar { background: transparent; transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); }
#navbar.scrolled { background: rgba(248,250,252,0.9); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid #e2e8f0; }
.dark #navbar.scrolled { background: rgba(10,14,39,0.85); border-bottom-color: rgba(255,255,255,0.05); }

.nav-link { position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: 2px; left: 50%; width: 0; height: 2px; background: linear-gradient(90deg, #00b4d8, #7c3aed); border-radius: 1px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); transform: translateX(-50%); }
.nav-link:hover::after, .nav-link.active::after { width: 60%; }

.hamburger-line { display: block; width: 20px; height: 2px; background-color: #475569; border-radius: 2px; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.dark .hamburger-line { background-color: #d1d5db; }
.hamburger-line.top-line { transform: translateY(-6px); }
.hamburger-line.bot-line { transform: translateY(6px); }
#mobile-menu-btn.active .top-line { transform: translateY(0) rotate(45deg); }
#mobile-menu-btn.active .mid-line { opacity: 0; transform: scaleX(0); }
#mobile-menu-btn.active .bot-line { transform: translateY(0) rotate(-45deg); }

.mobile-nav-link { transform: translateX(20px); opacity: 0; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
#mobile-menu.open .mobile-nav-link { transform: translateX(0); opacity: 1; }
#mobile-menu.open .mobile-nav-link:nth-child(1) { transition-delay: 0.05s; }
#mobile-menu.open .mobile-nav-link:nth-child(2) { transition-delay: 0.1s; }
#mobile-menu.open .mobile-nav-link:nth-child(3) { transition-delay: 0.15s; }
#mobile-menu.open .mobile-nav-link:nth-child(4) { transition-delay: 0.2s; }
#mobile-menu.open .mobile-nav-link:nth-child(5) { transition-delay: 0.25s; }

.scroll-reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.scroll-reveal.revealed { opacity: 1; transform: translateY(0); }

@keyframes card-glow { 0%,100% { box-shadow: 0 0 0 0 transparent; } 50% { box-shadow: 0 0 30px -5px var(--glow-color, rgba(0,180,216,0.15)); } }

input:focus, textarea:focus { box-shadow: 0 0 0 3px rgba(0,180,216,0.1); }

.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

@keyframes toast-in { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
#toast-success { animation: toast-in 0.4s ease-out; }

@media (max-width: 640px) { .bg-grid-pattern { background-size: 40px 40px; } }

.loader-logo { animation: loader-pulse 1.8s ease-in-out infinite; }
.loader-bar-fill { width: 0; transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
@keyframes loader-pulse {
    0%, 100% { transform: scale(1); opacity: 1; filter: drop-shadow(0 0 12px rgba(0,180,216,0.3)); }
    50% { transform: scale(1.05); opacity: 0.9; filter: drop-shadow(0 0 28px rgba(0,180,216,0.5)); }
}

.svc-3d-card {
    transform-style: preserve-3d;
    will-change: transform;
}

.svc-3d-card:hover {
    border-color: rgba(0,180,216,0.25) !important;
}

.svc-3d-img {
    transition: transform 0.3s ease-out;
    will-change: transform;
}

.syphax-toast-wrap {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 200;
    width: 100%;
    max-width: 440px;
    padding: 0 16px;
    pointer-events: none;
}

.syphax-toast {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 14px;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25), 0 0 0 1px rgba(255,255,255,0.05) inset;
    animation: syphax-toast-in 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.syphax-toast-success { background: linear-gradient(135deg, #059669, #047857); }
.syphax-toast-error { background: linear-gradient(135deg, #dc2626, #b91c1c); }

.syphax-toast i { font-size: 18px; flex-shrink: 0; }
.syphax-toast span { flex: 1; line-height: 1.4; }

.syphax-toast-close {
    background: none;
    border: none;
    color: rgba(255,255,255,0.7);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    padding: 0 0 0 8px;
    flex-shrink: 0;
    transition: color 0.2s;
}
.syphax-toast-close:hover { color: #fff; }

.syphax-toast-out { animation: syphax-toast-out 0.35s ease-in forwards; }

@keyframes syphax-toast-in {
    from { opacity: 0; transform: translateY(-24px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes syphax-toast-out {
    from { opacity: 1; transform: translateY(0) scale(1); }
    to { opacity: 0; transform: translateY(-24px) scale(0.95); }
}