/* 7Sky Travel - animated 3D brand mark (CSS-only 3D, no images/JS) */
.logo3d {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    width: 173px;
    height: 68px;
    vertical-align: middle;
    user-select: none;
}
.logo3d-scene {
    position: relative;
    width: 60px;
    height: 60px;
    flex: 0 0 auto;
    perspective: 340px;
}
.logo3d-scene .glow {
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(60,170,255,.55) 0%, rgba(60,170,255,0) 70%);
    filter: blur(3px);
    animation: logo3dGlowPulse 3.5s ease-in-out infinite;
}
.logo3d-scene .globe-spin {
    position: absolute;
    inset: 4px;
    transform-style: preserve-3d;
    animation: logo3dGlobeSpin 7s linear infinite;
}
.logo3d-scene .globe-core {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: radial-gradient(circle at 32% 28%, #a7ecff 0%, #35b4e8 26%, #0b6fb8 52%, #063f79 78%, #042a52 100%);
    box-shadow:
        inset -6px -8px 14px rgba(2,20,40,.6),
        inset 4px 5px 12px rgba(255,255,255,.45),
        0 4px 10px rgba(3,20,45,.45);
}
.logo3d-scene .globe-core::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: conic-gradient(from 200deg, rgba(255,215,30,.65), transparent 35%, transparent 65%, rgba(255,215,30,.45));
    mix-blend-mode: overlay;
    animation: logo3dSunSweep 5s linear infinite;
}
.logo3d-scene .meridian {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1.6px solid rgba(255,255,255,.8);
    transform-style: preserve-3d;
    box-shadow: 0 0 4px rgba(255,255,255,.3);
}
.logo3d-scene .m1 { animation: logo3dMerA 7s linear infinite; }
.logo3d-scene .m2 { animation: logo3dMerB 7s linear infinite; opacity: .85; border-color: rgba(255,255,255,.6); }
.logo3d-scene .m3 { animation: logo3dMerC 5.2s linear infinite; opacity: .7; border-color: rgba(255,255,255,.5); }

.logo3d-scene .orbit {
    position: absolute;
    inset: -6px;
    transform-style: preserve-3d;
    animation: logo3dOrbitSpin 3.4s linear infinite;
}
.logo3d-scene .orbit-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 1.2px dashed rgba(255,215,30,.75);
}
.logo3d-scene .plane {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    transform: translateZ(34px) rotate(90deg);
    filter: drop-shadow(0 2px 3px rgba(0,0,0,.5));
}
.logo3d-scene .plane svg { width: 100%; height: 100%; display: block; }
.logo3d-scene .plane::before {
    content: "";
    position: absolute;
    top: 50%;
    right: 100%;
    width: 20px;
    height: 2px;
    margin-top: -1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.85));
    border-radius: 2px;
}

@keyframes logo3dGlowPulse {
    0%, 100% { opacity: .5; transform: scale(.94); }
    50% { opacity: .95; transform: scale(1.06); }
}
@keyframes logo3dGlobeSpin {
    from { transform: rotateY(0deg) rotateX(-6deg); }
    to { transform: rotateY(360deg) rotateX(-6deg); }
}
@keyframes logo3dMerA {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
}
@keyframes logo3dMerB {
    from { transform: rotateY(60deg) rotateX(20deg); }
    to { transform: rotateY(420deg) rotateX(20deg); }
}
@keyframes logo3dMerC {
    from { transform: rotateY(120deg) rotateX(-25deg); }
    to { transform: rotateY(480deg) rotateX(-25deg); }
}
@keyframes logo3dSunSweep {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
@keyframes logo3dOrbitSpin {
    from { transform: rotateY(0deg) rotateX(58deg); }
    to { transform: rotateY(360deg) rotateX(58deg); }
}

.logo3d-text {
    display: flex;
    flex-direction: column;
    line-height: 1;
    font-family: "Segoe UI", Arial, Helvetica, sans-serif;
}
.logo3d-text .row1 {
    display: flex;
    align-items: baseline;
    font-weight: 800;
    font-size: 24px;
    letter-spacing: .5px;
}
.logo3d-text .num {
    background: linear-gradient(180deg, #ffe98a 0%, #FFD71E 45%, #e8a400 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 1px 1px 0 rgba(150,90,0,.25);
    margin-right: 1px;
}
.logo3d-text .sky {
    background: linear-gradient(180deg, #5fc4ff 0%, #1a7fd6 55%, #0a4d94 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.logo3d-text .travel {
    margin-top: 3px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2.3px;
    color: #3c6a94;
    text-transform: uppercase;
}

@media (max-width: 767px) {
    .logo3d { width: 132px; height: 48px; gap: 6px; }
    .logo3d-scene { width: 44px; height: 44px; }
    .logo3d-text .row1 { font-size: 18px; }
    .logo3d-text .travel { font-size: 9px; letter-spacing: 1.6px; margin-top: 2px; }
    .logo3d-scene .plane { width: 12px; height: 12px; margin: -6px 0 0 -6px; transform: translateZ(24px) rotate(90deg); }
}

@media (prefers-reduced-motion: reduce) {
    .logo3d-scene .glow,
    .logo3d-scene .globe-spin,
    .logo3d-scene .globe-core::after,
    .logo3d-scene .meridian,
    .logo3d-scene .orbit {
        animation: none;
    }
}