body {
    min-height: 100vh;
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: radial-gradient(ellipse at center, #0b0b0b 0%, #000 60%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* make sure tree scene sits nicely */
.tree-scene {
    position: fixed;
    left: 50%;
    top: 45%;
    transform: translate(-50%, -50%);
    width: 340px;
    height: 440px;
    perspective: 900px;
    z-index: 0;
    pointer-events: none;
    opacity: 0.86;
    filter: drop-shadow(0 12px 30px rgba(0,0,0,0.6));
}

.tree {
    width: 220px;
    height: 360px;
    position: relative;
    transform-style: preserve-3d;
    transform-origin: center bottom;
    animation: tree-spin 12s linear infinite;
}

/* star */
.tree .star {
    position: absolute;
    top: -28px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 28px;
    color: #ffd54f;
    text-shadow: 0 2px 8px rgba(0,0,0,0.6);
    z-index: 5;
}

/* triangular layers */
.tree .layer {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    border-left: 110px solid transparent;
    border-right: 110px solid transparent;
    border-bottom: 84px solid #0b6b2b;
    border-radius: 6px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.5);
}
.tree .l1 { top: 10px; border-bottom-width: 100px; transform: translateX(-50%) translateZ(0px) rotateX(8deg); }
.tree .l2 { top: 70px; border-bottom-width: 92px; transform: translateX(-50%) translateZ(6px) rotateX(6deg); }
.tree .l3 { top: 128px; border-bottom-width: 84px; transform: translateX(-50%) translateZ(12px) rotateX(4deg); }
.tree .l4 { top: 178px; border-bottom-width: 72px; transform: translateX(-50%) translateZ(18px) rotateX(2deg); }
.tree .l5 { top: 218px; border-bottom-width: 60px; transform: translateX(-50%) translateZ(24px) rotateX(0deg); }

.tree .trunk {
    position: absolute;
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    width: 52px;
    height: 60px;
    background: linear-gradient(180deg,#6b3b10,#3c1f06);
    border-radius: 6px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.5);
    z-index: 4;
}

/* lights */
.tree .light {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    left: var(--x, 50%);
    top: var(--y, 50%);
    background: var(--c, #ffeb3b);
    box-shadow: 0 0 10px currentColor, 0 0 20px currentColor;
    transform: translate(-50%, -50%);
    animation: twinkle 1.6s ease-in-out infinite;
    animation-delay: var(--d, 0s);
    z-index: 6;
}

@keyframes twinkle {
    0%,100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 0.45; transform: translate(-50%, -50%) scale(0.75); }
}

@keyframes tree-spin {
    from { transform: rotateY(0deg); }
    to { transform: rotateY(360deg); }
}

/* prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    .tree { animation: none !important; }
    .tree .light { animation: none !important; }
}

.container {
    background: rgba(150, 105, 68, 0.09);
    border-radius: 24px;
    padding: 48px 32px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    position: relative;
    z-index: 2;
}

h1 {
    color: #fff;
    font-size: 2.5rem;
    letter-spacing: 2px;
}

.profile-pic {
    width: 160px;
    height: 160px;
    object-fit: cover;
    border-radius: 50%;
    border: 5px solid #fff;
    box-shadow: 0 4px 16px rgba(0,0,0,0.10);
}

.contact-btn {
    position: relative;
    overflow: hidden;
    z-index: 1;
    background: #fff;
    color: #005fa3;
    border: none;
    border-radius: 24px;
    padding: 14px 36px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: color 0.15s ease, background 0.15s ease, transform 0.12s;
    will-change: transform;
}

/* gradient overlay for rainbow glow */
.contact-btn::before {
    content: "";
    position: absolute;
    inset: -30% -30%;
    background: conic-gradient(from 0deg, #ff0000, #ff7a00, #ffef00, #00ff00, #00bfff, #4b00ff, #ff00ff, #ff0000);
    background-size: 200% 200%;
    opacity: 0;
    filter: blur(8px) saturate(120%);
    transform: scale(1) rotate(0deg);
    border-radius: inherit;
    transition: opacity 0.18s ease;
    pointer-events: none;
    z-index: 0;
}

/* show & animate on hover/focus/active */
.contact-btn:hover,
.contact-btn:focus,
.contact-btn:active {
    color: #fff;
    background: transparent;
    animation: throb 0.9s ease-in-out infinite;
}

.contact-btn:hover::before,
.contact-btn:focus::before,
.contact-btn:active::before {
    opacity: 1;
    animation: rainbow 2s linear infinite;
}

/* animations */
@keyframes rainbow {
    0%   { transform: rotate(0deg) translateX(0%); }
    50%  { transform: rotate(180deg) translateX(20%); }
    100% { transform: rotate(360deg) translateX(0%); }
}

@keyframes throb {
    0%   { transform: scale(1); }
    50%  { transform: scale(1.06); }
    100% { transform: scale(1); }
}

/* Accessibility: respect user's reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .contact-btn { animation: none !important; transition: none !important; }
    .contact-btn::before { animation: none !important; filter: none; opacity: 0.6; }
}

/* Secondary / ghost style for Test button ✅ */
.test-btn {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.9);
    border-radius: 24px;
    padding: 12px 34px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    box-shadow: none;
    transition: background 0.15s, color 0.15s, transform 0.12s;
}

.test-btn:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-2px);
}